1
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Khanal N, Subedi R, Shrestha N, Pradhan SB, Shah P, Shrestha S, Wagle S. Cecal volvulus following appendectomy in a teenage patient: A case report. Clin Case Rep 2024; 12:e8480. [PMID: 38328489 PMCID: PMC10847060 DOI: 10.1002/ccr3.8480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/15/2024] [Accepted: 01/19/2024] [Indexed: 02/09/2024] Open
Abstract
Patients mimicking appendicitis symptoms in a rural setting or those post-appendectomy, indicating cecal volvulus, should always be considered. Swift action can prevent catastrophic consequences. Abstract We present a case of a 14-year-old female who initially underwent open appendectomy for acute appendicitis and subsequently experienced symptoms of abdominal distention, vomiting, and fever. Her condition deteriorated following the appendectomy, despite a prior appendectomy for similar symptoms at a different facility. A computed tomography (CT) scan identified cecal volvulus as the underlying issue. This led to the performance of a laparotomy, cecopexy, and decompressive ileostomy. After six weeks, ileostomy closure was successfully carried out, and the patient currently enjoys good health. This case highlights the significance of considering uncommon factors as potential contributors to postoperative complications in young patients.
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Affiliation(s)
- N. Khanal
- Department of SurgeryHetauda Hospital, Madan Bhandari Academy of Health SciencesHetaudaNepal
| | - R. Subedi
- Department of SurgeryHetauda Hospital, Madan Bhandari Academy of Health SciencesHetaudaNepal
| | - N. Shrestha
- Department of SurgeryHetauda Hospital, Madan Bhandari Academy of Health SciencesHetaudaNepal
| | - S. B. Pradhan
- Department of SurgeryHetauda Hospital, Madan Bhandari Academy of Health SciencesHetaudaNepal
| | - P. Shah
- Department of SurgeryHetauda Hospital, Madan Bhandari Academy of Health SciencesHetaudaNepal
| | - S. Shrestha
- Department of SurgeryHetauda Hospital, Madan Bhandari Academy of Health SciencesHetaudaNepal
| | - S. Wagle
- Department of RadiologyHetauda Hospital, Madan Bhandari Academy of Health SciencesHetaudaNepal
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Shrestha N, Sleep SL, Holland OJ, Vidimce J, Bulmer AC, Cuffe JSM, Perkins AV, McAinch AJ, Hryciw DH. Maternal Diet High in Linoleic Acid Alters Offspring Lipids and Hepatic Regulators of Lipid Metabolism in an Adolescent Rat Model. Int J Mol Sci 2024; 25:1129. [PMID: 38256199 PMCID: PMC10816089 DOI: 10.3390/ijms25021129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/03/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
Linoleic acid (LA), an n-6 polyunsaturated fatty acid (PUFA), is essential for fetal growth and development. A maternal high LA (HLA) diet alters cardiovascular development in adolescent rats and hepatic function in adult rats in a sex-specific manner. We investigated the effects of an HLA diet on adolescent offspring hepatic lipids and hepatic lipid metabolism gene expression, and the ability of the postnatal diet to alter these effects. Female Wistar Kyoto rats were fed low LA (LLA; 1.44% energy from LA) or high LA (HLA; 6.21% energy from LA) diets during pregnancy and gestation/lactation. Offspring, weaned at postnatal day (PN) 25, were fed LLA or HLA and euthanised at PN40 (n = 6-8). Maternal HLA increased circulating uric acid, decreased hepatic cholesterol and increased hepatic Pparg in males, whereas only hepatic Srebf1 and Hmgcr increased in females. Postnatal (post-weaning) HLA decreased liver weight (% body weight) and increased hepatic Hmgcr in males, and decreased hepatic triglycerides in females. Maternal and postnatal HLA had an interaction effect on Lpl, Cpt1a and Pparg in females. These findings suggest that an HLA diet both during and after pregnancy should be avoided to improve offspring disease risk.
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Affiliation(s)
- Nirajan Shrestha
- School of Pharmacy and Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (S.L.S.); (O.J.H.); (J.V.); (A.C.B.); (A.V.P.)
| | - Simone L. Sleep
- School of Pharmacy and Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (S.L.S.); (O.J.H.); (J.V.); (A.C.B.); (A.V.P.)
| | - Olivia J. Holland
- School of Pharmacy and Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (S.L.S.); (O.J.H.); (J.V.); (A.C.B.); (A.V.P.)
- Women’s, Newborn and Childrens Services, Gold Coast Health, Southport, QLD 4222, Australia
| | - Josif Vidimce
- School of Pharmacy and Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (S.L.S.); (O.J.H.); (J.V.); (A.C.B.); (A.V.P.)
| | - Andrew C. Bulmer
- School of Pharmacy and Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (S.L.S.); (O.J.H.); (J.V.); (A.C.B.); (A.V.P.)
| | - James S. M. Cuffe
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4072, Australia;
| | - Anthony V. Perkins
- School of Pharmacy and Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (S.L.S.); (O.J.H.); (J.V.); (A.C.B.); (A.V.P.)
- School of Health, University of Sunshine Coast, Sunshine Coast, Sippy Downs, QLD 4556, Australia
| | - Andrew J. McAinch
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3001, Australia;
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St. Albans, VIC 3021, Australia
| | - Deanne H. Hryciw
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3001, Australia;
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- Griffith Institute of Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
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3
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Singh C, Jin B, Shrestha N, Markhard AL, Panda A, Calvo SE, Deik A, Pan X, Zuckerman AL, Ben Saad A, Corey KE, Sjoquist J, Osganian S, AminiTabrizi R, Rhee EP, Shah H, Goldberger O, Mullen AC, Cracan V, Clish CB, Mootha VK, Goodman RP. ChREBP is activated by reductive stress and mediates GCKR-associated metabolic traits. Cell Metab 2024; 36:144-158.e7. [PMID: 38101397 PMCID: PMC10842884 DOI: 10.1016/j.cmet.2023.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 07/24/2023] [Accepted: 11/21/2023] [Indexed: 12/17/2023]
Abstract
Common genetic variants in glucokinase regulator (GCKR), which encodes GKRP, a regulator of hepatic glucokinase (GCK), influence multiple metabolic traits in genome-wide association studies (GWASs), making GCKR one of the most pleiotropic GWAS loci in the genome. It is unclear why. Prior work has demonstrated that GCKR influences the hepatic cytosolic NADH/NAD+ ratio, also referred to as reductive stress. Here, we demonstrate that reductive stress is sufficient to activate the transcription factor ChREBP and necessary for its activation by the GKRP-GCK interaction, glucose, and ethanol. We show that hepatic reductive stress induces GCKR GWAS traits such as increased hepatic fat, circulating FGF21, and circulating acylglycerol species, which are also influenced by ChREBP. We define the transcriptional signature of hepatic reductive stress and show its upregulation in fatty liver disease and downregulation after bariatric surgery in humans. These findings highlight how a GCKR-reductive stress-ChREBP axis influences multiple human metabolic traits.
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Affiliation(s)
- Charandeep Singh
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA; Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Byungchang Jin
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA; Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Nirajan Shrestha
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA; Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Andrew L Markhard
- Howard Hughes Medical Institute and Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Apekshya Panda
- Howard Hughes Medical Institute and Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Sarah E Calvo
- Howard Hughes Medical Institute and Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Amy Deik
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Xingxiu Pan
- The Scintillon Institute, San Diego, CA 92121, USA
| | - Austin L Zuckerman
- The Scintillon Institute, San Diego, CA 92121, USA; Program in Mathematics and Science Education, University of California, San Diego, La Jolla, CA 92093; Program in Mathematics and Science Education, San Diego State University, San Diego, CA 92120
| | - Amel Ben Saad
- Division of Gastroenterology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Kathleen E Corey
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Julia Sjoquist
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Stephanie Osganian
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Roya AminiTabrizi
- Metabolomics Platform, Comprehensive Cancer Center, the University of Chicago, Chicago, IL 60637, USA
| | - Eugene P Rhee
- Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA; Nephrology Division, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Hardik Shah
- Metabolomics Platform, Comprehensive Cancer Center, the University of Chicago, Chicago, IL 60637, USA
| | - Olga Goldberger
- Howard Hughes Medical Institute and Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Alan C Mullen
- Division of Gastroenterology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Valentin Cracan
- The Scintillon Institute, San Diego, CA 92121, USA; Department of Chemistry, the Scripps Research Institute, La Jolla, CA 92037, USA
| | - Clary B Clish
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Vamsi K Mootha
- Howard Hughes Medical Institute and Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Russell P Goodman
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA 02114, USA; Endocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA.
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4
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Pan X, Heacock ML, Abdulaziz EN, Violante S, Zuckerman AL, Shrestha N, Yao C, Goodman RP, Cross JR, Cracan V. A genetically encoded tool to increase cellular NADH/NAD + ratio in living cells. Nat Chem Biol 2023:10.1038/s41589-023-01460-w. [PMID: 37884806 PMCID: PMC11045668 DOI: 10.1038/s41589-023-01460-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 09/25/2023] [Indexed: 10/28/2023]
Abstract
Impaired redox metabolism is a key contributor to the etiology of many diseases, including primary mitochondrial disorders, cancer, neurodegeneration and aging. However, mechanistic studies of redox imbalance remain challenging due to limited strategies that can perturb redox metabolism in various cellular or organismal backgrounds. Most studies involving impaired redox metabolism have focused on oxidative stress; consequently, less is known about the settings where there is an overabundance of NADH reducing equivalents, termed reductive stress. Here we introduce a soluble transhydrogenase from Escherichia coli (EcSTH) as a novel genetically encoded tool to promote reductive stress in living cells. When expressed in mammalian cells, EcSTH, and a mitochondrially targeted version (mitoEcSTH), robustly elevated the NADH/NAD+ ratio in a compartment-specific manner. Using this tool, we determined that metabolic and transcriptomic signatures of the NADH reductive stress are cellular background specific. Collectively, our novel genetically encoded tool represents an orthogonal strategy to promote reductive stress.
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Affiliation(s)
- Xingxiu Pan
- Laboratory of Redox Biology and Metabolism, Scintillon Institute, San Diego, CA, USA
| | - Mina L Heacock
- Laboratory of Redox Biology and Metabolism, Scintillon Institute, San Diego, CA, USA
- Calibr, The Scripps Research Institute, La Jolla, CA, USA
| | - Evana N Abdulaziz
- Laboratory of Redox Biology and Metabolism, Scintillon Institute, San Diego, CA, USA
- Process Development Associate, Amgen, Thousand Oaks, CA, USA
| | - Sara Violante
- Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Austin L Zuckerman
- Laboratory of Redox Biology and Metabolism, Scintillon Institute, San Diego, CA, USA
- Program in Mathematics and Science Education, University of California San Diego, San Diego, CA, USA
- Program in Mathematics and Science Education, San Diego State University, San Diego, USA
| | - Nirajan Shrestha
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA
| | - Canglin Yao
- Laboratory of Redox Biology and Metabolism, Scintillon Institute, San Diego, CA, USA
| | - Russell P Goodman
- Liver Center, Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA
| | - Justin R Cross
- Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Valentin Cracan
- Laboratory of Redox Biology and Metabolism, Scintillon Institute, San Diego, CA, USA.
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA.
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5
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Khanal N, Subedi R, Shrestha N, Shrestha S. Inflammatory myofibroblastic tumor presenting as ileocolic intussusception: A case report. Clin Case Rep 2023; 11:e8064. [PMID: 37881194 PMCID: PMC10593977 DOI: 10.1002/ccr3.8064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 09/09/2023] [Accepted: 09/27/2023] [Indexed: 10/27/2023] Open
Abstract
Key Clinical Message The report urges considering rare neoplastic tumor, like IMT, in intussusception cases and underscores the vital role of comprehensive and swift diagnosis in influencing treatment choices and patient results. Abstract We present a case of a 36-year-old male who presented with abdominal pain and vomiting. Inflammatory markers were elevated in routine investigations, while other laboratory parameters were within normal limits. Ultrasound imaging revealed a target lesion, which required further evaluation with a CT scan and confirmed ileocolic intussusception. An exploratory laparotomy showed a solid lesion measuring 5 by 6 cm in the cecum, along with evidence of ileocolic intussusception. A standard right hemicolectomy was performed, and the postoperative course was uneventful. Histopathological examination showed an inflammatory myofibroblastic tumor with nodular hyperplasia. The report highlighted the importance of assessing rare neoplastic causes in patients with intussusception.
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Affiliation(s)
- Nischal Khanal
- General SurgeryMadan Bhandari Academy of Health SciencesHetaudaNepal
| | - Rupak Subedi
- Madan Bhandari Academy of Health SciencesHetaudaNepal
| | - Nirajan Shrestha
- General SurgeryMadan Bhandari Academy of Health SciencesHetaudaNepal
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6
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Shrestha N, Rout-Pitt N, McCarron A, Jackson CA, Bulmer AC, McAinch AJ, Donnelley M, Parsons DW, Hryciw DH. Changes in Essential Fatty Acids and Ileal Genes Associated with Metabolizing Enzymes and Fatty Acid Transporters in Rodent Models of Cystic Fibrosis. Int J Mol Sci 2023; 24:ijms24087194. [PMID: 37108362 PMCID: PMC10138779 DOI: 10.3390/ijms24087194] [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] [Received: 03/16/2023] [Revised: 04/03/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Cystic fibrosis (CF), the result of mutations in the CF transmembrane conductance regulator (CFTR), causes essential fatty acid deficiency. The aim of this study was to characterize fatty acid handling in two rodent models of CF; one strain which harbors the loss of phenylalanine at position 508 (Phe508del) in CFTR and the other lacks functional CFTR (510X). Fatty acid concentrations were determined using gas chromatography in serum from Phe508del and 510X rats. The relative expression of genes responsible for fatty acid transport and metabolism were quantified using real-time PCR. Ileal tissue morphology was assessed histologically. There was an age-dependent decrease in eicosapentaenoic acid and the linoleic acid:α-linolenic acid ratio, a genotype-dependent decrease in docosapentaenoic acid (n-3) and an increase in the arachidonic acid:docosahexaenoic acid ratio in Phe508del rat serum, which was not observed in 510X rats. In the ileum, Cftr mRNA was increased in Phe508del rats but decreased in 510X rats. Further, Elvol2, Slc27a1, Slc27a2 and Got2 mRNA were increased in Phe508del rats only. As assessed by Sirius Red staining, collagen was increased in Phe508del and 510X ileum. Thus, CF rat models exhibit alterations in the concentration of circulating fatty acids, which may be due to altered transport and metabolism, in addition to fibrosis and microscopic structural changes in the ileum.
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Affiliation(s)
- Nirajan Shrestha
- School of Pharmacy and Medical Sciences, Griffith University, Southport, QLD 4215, Australia
| | - Nathan Rout-Pitt
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5005, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women's and Children's Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - Alexandra McCarron
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5005, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women's and Children's Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - Courtney A Jackson
- School of Environment and Science, Griffith University, Nathan, QLD 4215, Australia
| | - Andrew C Bulmer
- School of Pharmacy and Medical Sciences, Griffith University, Southport, QLD 4215, Australia
| | - Andrew J McAinch
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3000, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St. Albans, VIC 3021, Australia
| | - Martin Donnelley
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women's and Children's Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
- School of Environment and Science, Griffith University, Nathan, QLD 4215, Australia
| | - David W Parsons
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women's and Children's Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
- School of Environment and Science, Griffith University, Nathan, QLD 4215, Australia
| | - Deanne H Hryciw
- School of Environment and Science, Griffith University, Nathan, QLD 4215, Australia
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3000, Australia
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
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Girgis R, Shrestha N, Krishnan S, Loyaga-Rendon R. Predictors of Early Mortality after Lung Transplantation for Primary Pulmonary Hypertension: A UNOS Analysis. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1620] [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: 04/05/2023] Open
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Tamrakar D, Katuwal N, Adhikari P, Banjara M, Shrestha N, Poudel P, Shrestha R. COVID 19 Vaccine Breakthrough Infection among Health Care Workers. Kathmandu Univ Med J (KUMJ) 2023; 21:263-269. [PMID: 38628009] [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: 04/19/2024]
Abstract
Background Mass vaccination is considered the primary strategy for reducing the impact of COVID-19, and it has been implemented globally. Objective To study the extent of SARS-CoV-2 infection and breakthrough infection among the HCWs who were fully vaccinated for at least 14 days and investigated the relation between neutralizing antibody response and breakthrough infection. Method This study was a retrospective cohort study among health care workers at Dhulikhel Hospital Kathmandu University Hospital from December 2021 to October 2022. The interviews with semi structured questionnaire were conducted in person or over phone. Out of 1450 participants 137 fully vaccinated HCWs without breakthrough infection were randomly selected for the prospective serological cohort. Result Out of 1079 participants' majority (51.8%) were of age 25-34 years. Two thirds (66.7%) were females. More than half of participant (54.7%) had infection with SARS-CoV-2 at least once whereas more than one third people (35%) had reported SARS-CoV-2 infection 14 days after receiving full vaccination. Infection after vaccination had less moderate and sever/critical illness and less need for hospitalization as compared to infection before vaccination. Staffs who were directly involved in patient care had higher chance of breakthrough infection compared to those not involved directly in patient care. Those who had prior infection or booster dose had relatively higher antibody level and participants with low level of antibody had higher chance for breakthrough infection (35.3%) than participants with moderate to high level of antibody (11.9%). Conclusion Vaccinations significantly decreased severe diseases and the need for hospitalizations. Breakthrough infection was higher among the health care workers involved in direct patient care and with low level of antibody.
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Affiliation(s)
- D Tamrakar
- Department of Community Medicine, Research and Development Division, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - N Katuwal
- Research and Development Division, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - P Adhikari
- Research and Development Division, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - M Banjara
- Research and Development Division, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - N Shrestha
- Research and Development Division, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - P Poudel
- Research and Development Division, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - R Shrestha
- Research and Development Division, Department of Pharmacology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
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Shrestha N, Thapa A, Gupta S, Lepcha L, Adhikari SP. Cross-cultural Adaptation and Psychometric Properties of Nepali Version of Developmental Coordination Disorder Questionnaire. Kathmandu Univ Med J (KUMJ) 2023; 21:33-39. [PMID: 37800423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Background Revised developmental coordination disorder questionnaire (DCDQ'07) is the best available population-based screening tool to identify developmental coordination disorder and being a parent reported tool, it needs to be available in Nepali language for its application in Nepali population. Objective The objective of this study was to cross-culturally adapt developmental coordination disorder questionnaire into Nepali (DCDQ-NP). The psychometric properties of Nepali version of Developmental coordination disorder questionnaire were established. Method The adaptation was done following Beaton's guideline and the psychometric properties was studied in the community sample of 165 parents of school going children of 5-15 years. Fifty parents were asked to refill the questionnaire after the two weeks period. The study determines internal consistency, test retest reliability, floor and ceiling effect and construct validity. Result Significant cultural adaptation was required to obtain relevant Nepali version. The Nepali version of Developmental coordination disorder questionnaire demonstrates high internal consistency (α = 0.912), excellent test-retest reliability (IC = 0.901) and the floor and ceiling effect were acceptable. Principal component analysis showed three factor structure accounting 62% of variance. Conclusion The developmental coordination disorder questionnaire into Nepali were successfully translated and culturally adapted preserving its original concept. It showed good psychometric properties in a Nepali population. The adapted questionnaire shall be of significance in carry out further research in developmental coordination disorder in Nepal.
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Affiliation(s)
- N Shrestha
- Epidemiology and Disease Control Division, Department of Health Services, Ministry of Health and Population, Kathmandu, Nepal
| | - A Thapa
- Star Hospital Limited, Lalitpur, Nepal
| | - S Gupta
- Sikkim Manipal University, Gangtok, India
| | - L Lepcha
- Sikkim Manipal University, Gangtok, India
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10
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Yadav D, Dangol B, Shrestha N, Pandit S, Nepal A. Post-tonsillectomy Hemorrhage in Patients Receiving Ketorolac Analgesic. Kathmandu Univ Med J (KUMJ) 2023; 21:3-6. [PMID: 37800417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Background Ketorolac, the non-steroidal anti-inflammatory drug, is thought to have less sedation as well as postoperative nausea and vomiting in comparison to opioids, but with higher risk of post-tonsillectomy hemorrhage as reported in some of the literatures. There is no consensus till date in the use of ketorolac in the management of pain following tonsil and adenoid related surgeries. Objective To find out the incidence of hemorrhage following tonsil and adenoid related surgeries in patients receiving ketorolac in postoperative period. Method This is a retrospective chart review of patients undergoing tonsil and adenoid related surgeries who had received ketorolac during April, 2013 to May, 2019 at department of ENT-HNS, Patan Academy of Health Sciences (PAHS), Lalitpur, Nepal. Post-tonsillectomy hemorrhage rate was calculated in pediatric and adult patients. Result During the study period, 103 patients (male - 50 and female - 53) received ketorolac in postoperative period. Tonsillectomy and adenotonsillectomy were performed in 71and 32 patients respectively. Forty-five patients were < 18 years whereas 58 were ≥ 18 years. Most common indication for surgery was recurrent tonsillitis (66/103) followed by adenotonsillar hypertrophy (31/103). Post-tonsillectomy hemorrhage was observed in 15 patients; among them, four out 45 were < 18 years and 11 out of 58 ≥ 18 years. All five patients out of 15, who required surgical intervention for post-tonsillectomy hemorrhage, were ≥ 18 years and were operated for recurrent tonsillitis. Rest of the patients (10/15) were managed conservatively. None of the patients required blood transfusion. Conclusion Ketorolac is not associated with increased risk of post-tonsillectomy hemorrhage in children and can safely be administered. Whereas in adults, recurrent tonsillitis being the most common indication for tonsillectomy, it should be used cautiously.
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Affiliation(s)
- D Yadav
- Department of ENT-HNS, Patan Hospital, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
| | - B Dangol
- Department of ENT-HNS, Patan Hospital, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
| | - N Shrestha
- Department of ENT-HNS, Patan Hospital, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
| | - S Pandit
- Consultant Radiation Oncologist, Kathmandu Cancer Center, Tathali, Nala Road, Bhaktapur, Nepal
| | - A Nepal
- Department of ENT-HNS, Patan Hospital, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
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11
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Shrestha N, McCarron A, Rout-Pitt N, Donnelley M, Parsons DW, Hryciw DH. Essential Fatty Acid Deficiency in Cystic Fibrosis Disease Progression: Role of Genotype and Sex. Nutrients 2022; 14:nu14214666. [PMID: 36364928 PMCID: PMC9657825 DOI: 10.3390/nu14214666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/01/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Adequate intake of nutrients such as essential fatty acids (EFA) are critical in cystic fibrosis (CF). The clinical course of deterioration of lung function in people with CF has been shown to relate to nutrition. Independent of the higher energy consumption and malabsorption due to pancreatic insufficiency, EFA deficiency is closely associated with the risk of pulmonary infection, the most significant pathology in CF. This review will focus on the EFA deficiency identified in people with CF, as well as the limited progress made in deciphering the exact metabolic pathways that are dysfunctional in CF. Specifically, people with CF are deficient in linoleic acid, an omega 6 fatty acid, and the ratio of arachidonic acid (omega 6 metabolite) and docosahexaenoic acid (omega 3 metabolite) is increased. Analysis of the molecular pathways in bronchial cells has identified changes in the enzymes that metabolise EFA. However, fatty acid metabolism primarily occurs in the liver, with EFA metabolism in CF liver not yet investigated, indicating that further research is required. Despite limited understanding in this area, it is well known that adequate EFA concentrations are critical to normal membrane structure and function, and thus are important to consider in disease processes. Novel insights into the relationship between CF genotype and EFA phenotype will be discussed, in addition to sex differences in EFA concentrations in people with CF. Collectively, investigating the specific effects of genotype and sex on fatty acid metabolism may provide support for the management of people with CF via personalised genotype- and sex-specific nutritional therapies.
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Affiliation(s)
- Nirajan Shrestha
- School of Pharmacy and Medical Sciences, Griffith University, Southport, QLD 4222, Australia
| | - Alexandra McCarron
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women’s and Children’s Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - Nathan Rout-Pitt
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women’s and Children’s Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - Martin Donnelley
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women’s and Children’s Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - David W. Parsons
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women’s and Children’s Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - Deanne H. Hryciw
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3000, Australia
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
- Correspondence: ; Tel.: +61-7-3735-3601
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12
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Hirachan N, Shrestha N. Knowledge, Attitude and Practice of Medical Ethics among Doctors and Nurses in Pokhara Valley, Nepal. Kathmandu Univ Med J (KUMJ) 2022; 20:351-358. [PMID: 37795730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Background Medical ethics is defined as the ethical obligations of medical professionals towards their patients, colleagues, and society. The inadequacy and non-uniformity of this topic has been associated with rising cases of professional misconduct and medical negligence all over the world. Objective To assess and compare the status of knowledge, attitude and practice of medical ethics among medical doctors and nurses in three major hospitals of Pokhara valley. Method This was a cross-sectional study conducted from 15th Mar 2018 to 13th Apr 2018; in which 124 doctors and 103 nurses were asked to fill up medical ethics related questionnaire. The data was entered in SPSS file and the association of variables was determined by Chi-square and statistical significance was considered if the p-value < 0.05. Result The study showed that 56.5%, 8.1%, and 13.7% of doctors were aware of the Hippocratic oath, Nuremberg Code, and Helsinki declaration respectively compared to only 1% of nurses. There was a significant difference in opinions on various questions related to medical ethics with p-value < 0.05 in 12 out of 22 questions. Only a few (12.1% doctors vs. 25.2% nurses) stood in support of the physicianassisted dying. Conclusion The study showed that there was inadequate as well as a non-uniform level of knowledge of three major codes of medical ethics and principles related to it which resulted in significant disparity in the attitude and practice of medical ethics among doctors and nurses in Pokhara valley.
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Affiliation(s)
- N Hirachan
- Department of Forensic Medicine, Gandaki Medical College, Pokhara, Nepal
| | - N Shrestha
- Department of Forensic Medicine, Gandaki Medical College, Pokhara, Nepal
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13
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Shrestha RM, Shrestha N, Shrestha P, Shrestha JK. Demographics and Awareness of Diabetic Retinopathy among Diabetic Patients Attending Department of Ophthalmology at Dhulikhel Hospital. Kathmandu Univ Med J (KUMJ) 2022; 20:183-187. [PMID: 37017163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Background Diabetes mellitus is considered as a major public health concern globally. Poor management of diabetes may lead to several serious complications including endstage renal disease, diabetic retinopathy, diabetic neuropathy, and cardiovascular complications. Among them diabetic retinopathy is one of the leading causes of visual impairment and blindness in Nepal. Objective To assess the demographics and level of awareness among individuals with diabetes about diabetic retinopathy during their visit to Department of Ophthalmology at Dhulikhel Hospital. Method A descriptive cross-sectional study was conducted involving all consecutive cases of diabetes mellitus who attended eye clinic with the principal investigator and co-investigator from March 2021 to August 2021. Detailed demographics of the participants, their level of awareness regarding diabetic retinopathy and associated complications were documented. This was followed by a detailed ocular examination intending to screen for the presence of features of diabetic retinopathy. Result A total of 260 patients with a mean age of 54 years ± 12.20 (range of 24 - 85 years) were included. The male to female ratio was 2.2:1. Among them, 65.4% of the patients had diabetes mellitus for less than 5 years duration. Diabetic retinopathy was found in 18.46% of the cases. Awareness of diabetic ocular complications was significantly higher among literate population (p = 0.054), among those who have positive family history of diabetes mellitus (p = 0.529) and those who had undergone prior fundus evaluation (p = 0.000). Conclusion From result of this study, we can emphasize that there is a necessity for health education in order to increase the awareness and knowledge about diabetic retinopathy to lower the burden of sight threatening complications related with the issue.
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Affiliation(s)
- R M Shrestha
- Department of Ophthalmology, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - N Shrestha
- Department of Ophthalmology, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - P Shrestha
- Department of Ophthalmology, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
| | - J K Shrestha
- Department of Ophthalmology, Dhulikhel Hospital, Kathmandu University Hospital, Dhulikhel, Kavre, Nepal
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14
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Hryciw DH, Jackson CA, Shrestha N, Parsons D, Donnelley M, McAinch AJ. Role for animal models in understanding essential fatty acid deficiency in cystic fibrosis. Cell Mol Life Sci 2021; 78:7991-7999. [PMID: 34741185 DOI: 10.1007/s00018-021-04014-2] [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] [Received: 08/17/2021] [Revised: 10/11/2021] [Accepted: 10/25/2021] [Indexed: 10/19/2022]
Abstract
Essential fatty acid deficiency has been observed in most patients with Cystic Fibrosis (CF); however, pancreatic supplementation does not restore the deficiency, suggesting a different pathology independent of the pancreas. At this time, the underlying pathological mechanisms are largely unknown. Essential fatty acids are obtained from the diet and processed by organs including the liver and intestine, two organs significantly impacted by mutations in the cystic fibrosis transmembrane conductance regulator gene (Cftr). There are several CF animal models in a variety of species that have been developed to investigate molecular mechanisms associated with the CF phenotype. Specifically, global and systemic mutations in Cftr which mimic genotypic changes identified in CF patients have been generated in mice, rats, sheep, pigs and ferrets. These mutations produce CFTR proteins with a gating defect, trafficking defect, or an absent or inactive CFTR channel. Essential fatty acids are critical to CFTR function, with a bidirectional relationship between CFTR and essential fatty acids proposed. Currently, there are limited analyses on the essential fatty acid status in most of these animal models. Of interest, in the mouse model, essential fatty acid status is dependent on the genotype and resultant phenotype of the mouse. Future investigations should identify an optimal animal model that has most of the phenotypic changes associated with CF including the essential fatty acid deficiencies, which can be used in the development of therapeutics.
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Affiliation(s)
- Deanne H Hryciw
- School of Environment and Science, Griffith University, Nathan, QLD, Australia. .,Centre for Planetary Health and Food Security, Griffith University, Nathan, QLD, Australia. .,Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.
| | - Courtney A Jackson
- School of Environment and Science, Griffith University, Nathan, QLD, Australia
| | - Nirajan Shrestha
- School of Pharmacy and Medical Sciences, Griffith University, Southport, QLD, Australia
| | - David Parsons
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Martin Donnelley
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia.,Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Andrew J McAinch
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.,Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St. Albans, VIC, Australia
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15
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Shrestha N, Melvin SD, McKeating DR, Holland OJ, Cuffe JSM, Perkins AV, McAinch AJ, Hryciw DH. Sex-Specific Differences in Lysine, 3-Hydroxybutyric Acid and Acetic Acid in Offspring Exposed to Maternal and Postnatal High Linoleic Acid Diet, Independent of Diet. Int J Mol Sci 2021; 22:10223. [PMID: 34638563 PMCID: PMC8508705 DOI: 10.3390/ijms221910223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/18/2021] [Accepted: 09/21/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Linoleic acid (LA) is an essential polyunsaturated fatty acid (PUFA) that is required for foetal growth and development. Excess intake of LA can be detrimental for metabolic health due to its pro-inflammatory properties; however, the effect of a diet high in LA on offspring metabolites is unknown. In this study, we aimed to determine the role of maternal or postnatal high linoleic acid (HLA) diet on plasma metabolites in adult offspring. METHODS Female Wistar Kyoto (WKY) rats were fed with either low LA (LLA) or HLA diet for 10 weeks prior to conception and during gestation/lactation. Offspring were weaned at postnatal day 25 (PN25), treated with either LLA or HLA diets and sacrificed at PN180. Metabolite analysis was performed in plasma samples using Nuclear Magnetic Resonance. RESULTS Maternal and postnatal HLA diet did not alter plasma metabolites in male and female adult offspring. There was no specific clustering among different treatment groups as demonstrated by principal component analysis. Interestingly, there was clustering among male and female offspring independent of maternal and postnatal dietary intervention. Lysine was higher in female offspring, while 3-hydroxybutyric acid and acetic acid were significantly higher in male offspring. CONCLUSION In summary, maternal or postnatal HLA diet did not alter the plasma metabolites in the adult rat offspring; however, differences in metabolites between male and female offspring occurred independently of dietary intervention.
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Affiliation(s)
- Nirajan Shrestha
- School of Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (D.R.M.); (O.J.H.); (A.V.P.)
| | - Steven D Melvin
- Australian Rivers Institute, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia;
| | - Daniel R. McKeating
- School of Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (D.R.M.); (O.J.H.); (A.V.P.)
| | - Olivia J. Holland
- School of Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (D.R.M.); (O.J.H.); (A.V.P.)
| | - James S. M. Cuffe
- School of Biomedical Science, The University of Queensland, Brisbane, QLD 4061, Australia;
| | - Anthony V. Perkins
- School of Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (D.R.M.); (O.J.H.); (A.V.P.)
| | - Andrew J. McAinch
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia;
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, Melbourne, VIC 8001, Australia
| | - Deanne H. Hryciw
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia;
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- Centre for Planetary Health and Food Security, Griffith University, Nathan, QLD 4111, Australia
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16
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Hryciw D, Shrestha N, Sleep S, Vidimce J, Cuffe J, Holland O, Perkins A, McAinch A. Maternal and postnatal diet high in linoleic acid alters fatty acid composition, cholesterol and hepatic gene expression, in adult offspring in a sex‐specific manner. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.00430] [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: 11/11/2022]
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17
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Shrestha N, Vidimce J, Holland OJ, Cuffe JSM, Beck BR, Perkins AV, McAinch AJ, Hryciw DH. Maternal and Postnatal High Linoleic Acid Diet Impacts Lipid Metabolism in Adult Rat Offspring in a Sex-Specific Manner. Int J Mol Sci 2021; 22:ijms22062946. [PMID: 33799409 PMCID: PMC7999727 DOI: 10.3390/ijms22062946] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 02/07/2023] Open
Abstract
Linoleic acid (LA), an n-6 polyunsaturated fatty acid (PUFA), is essential for fetal growth and development. We aimed to investigate the effect of maternal and postnatal high LA (HLA) diet on plasma FA composition, plasma and hepatic lipids and genes involved in lipid metabolism in the liver of adult offspring. Female rats were fed with low LA (LLA; 1.44% LA) or HLA (6.21% LA) diets for 10 weeks before pregnancy, and during gestation/lactation. Offspring were weaned at postnatal day 25 (PN25), fed either LLA or HLA diets and sacrificed at PN180. Postnatal HLA diet decreased circulating total n-3 PUFA and alpha-linolenic acid (ALA), while increased total n-6 PUFA, LA and arachidonic acid (AA) in both male and female offspring. Maternal HLA diet increased circulating leptin in female offspring, but not in males. Maternal HLA diet decreased circulating adiponectin in males. Postnatal HLA diet significantly decreased aspartate transaminase (AST) in females and downregulated total cholesterol, HDL-cholesterol and triglycerides in the plasma of males. Maternal HLA diet downregulated the hepatic mRNA expression of Hmgcr in both male and female offspring and decreased the hepatic mRNA expression of Cpt1a and Acox1 in females. Both maternal and postnatal HLA diet decreased hepatic mRNA expression of Cyp27a1 in females. Postnatal diet significantly altered circulating fatty acid concentrations, with sex-specific differences in genes that control lipid metabolism in the adult offspring following exposure to high LA diet in utero.
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Affiliation(s)
- Nirajan Shrestha
- School of Medical Science, Griffith University, Gold Coast, QLD 4222, Australia; (N.S.); (J.V.); (O.J.H.); (A.V.P.)
| | - Josif Vidimce
- School of Medical Science, Griffith University, Gold Coast, QLD 4222, Australia; (N.S.); (J.V.); (O.J.H.); (A.V.P.)
| | - Olivia J. Holland
- School of Medical Science, Griffith University, Gold Coast, QLD 4222, Australia; (N.S.); (J.V.); (O.J.H.); (A.V.P.)
- Institute of Health and Biomedical Innovation, Queensland University of Technology, South Brisbane, QLD 4001, Australia
| | - James S. M. Cuffe
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Belinda R. Beck
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
- School of Allied Health Sciences, Griffith University, Gold Coast, QLD 4222, Australia
| | - Anthony V. Perkins
- School of Medical Science, Griffith University, Gold Coast, QLD 4222, Australia; (N.S.); (J.V.); (O.J.H.); (A.V.P.)
| | - Andrew J. McAinch
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia;
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St. Albans, VIC 3021, Australia
| | - Deanne H. Hryciw
- Institute for Health and Sport, Victoria University, Melbourne, VIC 8001, Australia;
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- Environmental Futures Research Institute, Griffith University, Nathan, QLD 4111, Australia
- Correspondence:
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18
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Vidimce J, Pillay J, Shrestha N, Dong LF, Neuzil J, Wagner KH, Holland OJ, Bulmer AC. Mitochondrial Function, Fatty Acid Metabolism, and Body Composition in the Hyperbilirubinemic Gunn Rat. Front Pharmacol 2021; 12:586715. [PMID: 33762933 PMCID: PMC7982585 DOI: 10.3389/fphar.2021.586715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/11/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Circulating bilirubin is associated with reduced adiposity in human and animal studies. A possible explanation is provided by in vitro data that demonstrates that bilirubin inhibits mitochondrial function and decreases efficient energy production. However, it remains unclear whether hyperbilirubinemic animals have similar perturbed mitochondrial function and whether this is important for regulation of energy homeostasis. Aim: To investigate the impact of unconjugated hyperbilirubinemia on body composition, and mitochondrial function in hepatic tissue and skeletal muscle. Materials and Methods: 1) Food intake and bodyweight gain of 14-week old hyperbilirubinemic Gunn (n = 19) and normobilirubinemic littermate (control; n = 19) rats were measured over a 17-day period. 2) Body composition was determined using dual-energy X-ray absorptiometry and by measuring organ and skeletal muscle masses. 3) Mitochondrial function was assessed using high-resolution respirometry of homogenized liver and intact permeabilized extensor digitorum longus and soleus fibers. 4) Liver tissue was flash frozen for later gene (qPCR), protein (Western Blot and citrate synthase activity) and lipid analysis. Results: Female hyperbilirubinemic rats had significantly reduced fat mass (Gunn: 9.94 ± 5.35 vs. Control: 16.6 ± 6.90 g, p < 0.05) and hepatic triglyceride concentration (Gunn: 2.39 ± 0.92 vs. Control: 4.65 ± 1.67 mg g-1, p < 0.01) compared to normobilirubinemic controls. Furthermore, hyperbilirubinemic rats consumed fewer calories daily (p < 0.01) and were less energetically efficient (Gunn: 8.09 ± 5.75 vs. Control: 14.9 ± 5.10 g bodyweight kcal-1, p < 0.05). Hepatic mitochondria of hyperbilirubinemic rats demonstrated increased flux control ratio (FCR) via complex I and II (CI+II) (Gunn: 0.78 ± 0.16 vs. Control: 0.62 ± 0.09, p < 0.05). Similarly, exogenous addition of 31.3 or 62.5 μM unconjugated bilirubin to control liver homogenates significantly increased CI+II FCR (p < 0.05). Hepatic PGC-1α gene expression was significantly increased in hyperbilirubinemic females while FGF21 and ACOX1 was significantly greater in male hyperbilirubinemic rats (p < 0.05). Finally, hepatic mitochondrial complex IV subunit 1 protein expression was significantly increased in female hyperbilirubinemic rats (p < 0.01). Conclusions: This is the first study to comprehensively assess body composition, fat metabolism, and mitochondrial function in hyperbilirubinemic rats. Our findings show that hyperbilirubinemia is associated with reduced fat mass, and increased hepatic mitochondrial biogenesis, specifically in female animals, suggesting a dual role of elevated bilirubin and reduced UGT1A1 function on adiposity and body composition.
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Affiliation(s)
- Josif Vidimce
- School of Medical Science, Griffith University, Gold Coast, QLD, Australia
| | - Johara Pillay
- School of Medical Science, Griffith University, Gold Coast, QLD, Australia
| | - Nirajan Shrestha
- School of Medical Science, Griffith University, Gold Coast, QLD, Australia
| | - Lan-Feng Dong
- School of Medical Science, Griffith University, Gold Coast, QLD, Australia
| | - Jiri Neuzil
- School of Medical Science, Griffith University, Gold Coast, QLD, Australia.,Institute of Biotechnology, Czech Academy of Sciences, Prague, Czechia
| | - Karl-Heinz Wagner
- Department of Nutritional Sciences and Research Platform Active Ageing, University of Vienna, Vienna, Austria
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19
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Shrestha N, Dangal G. Revisiting Strategies for Maternal Health Care in the Face of COVID-19 Pandemic. Kathmandu Univ Med J (KUMJ) 2021; 18:62-67. [PMID: 33605241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Novel coronavirus (SARS-CoV-2) is a new strain of coronavirus causing COVID-19, first identified in Wuhan City, China towards the end of 2019. At present, there is no evidence that pregnant women are more likely to be severely ill, need ICU care, or die from the illness in comparison to non-pregnant adults. Evidences suggest that vertical transmission, might be possible. We searched and retrieved the published literature from PubMed and Google Scholar using various keywords. We further searched the official webpages of various organizations for the updated information. Pregnant individuals in particular are encouraged to take all available precautions to optimize health and avoid exposure to COVID-19. Adequate Testing should be prioritized in pregnant women admitted with suspected COVID-19. When a pregnancy is complicated by critical illness, the pregnant patient should ideally be cared for at a Level III or IV hospital. In the face of COVID-19, antenatal fetal surveillance and ultrasonography should continue as medically indicated when possible and elective ultrasound examinations should not be performed. Maternal immunizations continue to be an essential component of prenatal care and Obgyns should screen all pregnant individuals for mental health issues. Although the most commonly reported sign in COVID-19 is fever, nevertheless, other causes of intrapartum fever should not be overlooked. Cesarean delivery should be based on obstetric indications and not COVID-19 status alone. Infants born to patients with known COVID-19 should be considered infants with suspected COVID-19. The suspected or confirmed COVID-19 mother and infant can be allowed to remain together with enhanced precautions and suspected or confirmed maternal COVID-19 is not a contraindication to breastfeeding. If both the mother and the infant are healthy, it may be prudent to expedite discharge, so as to limit the risk of inadvertent exposure and infection. The Ob-gyns should commit to providing necessary care, although modifications to health care delivery approaches may be necessary.
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Affiliation(s)
- N Shrestha
- Department of Community Medicine, Chitwan Medical College, Bharatpur, Nepal
| | - G Dangal
- Department of Obstetrics and Gynaecology, Kathmandu Model Hospital, Kathmandu, Nepal
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20
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Shrestha MV, Shrestha N, Sharma SC, Joshi SK. Gaming Disorder among Medical College Students during COVID-19 Pandemic Lockdown. Kathmandu Univ Med J (KUMJ) 2021; 18:48-52. [PMID: 33605238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Background The frequent lockdown in Nepal during COVID-19 pandemic had brought various kinds of complexities such as stress among college students. This situation had created uncertainty of future academic career of undergraduate students in medical colleges. Some previously published literature showed gaming as a coping mechanism against stress. Objective To assess the gaming behavior of Medical college students during lockdown in COVID-19 pandemic. Method A cross-sectional study was conducted during lockdown period of July to August 2020. A total of 412 college students were enrolled. Online Google forms were shared to all the eligible students through email, viber and messenger with the help of class representative. Collected data were analyzed in SPSS version 20.0. Result The prevalence of gaming disorder was 8.5% among 260 internet gaming users. About 69.2% of the participants reported that their gaming behavior had increased due to stress of COVID-19 pandemic. Gender and spending more time online per day showed significant associations with greater scores on the internet gaming disorder. Conclusion During lockdown period of COVID-19 pandemic, the gaming behavior of medical college students has increased.
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Affiliation(s)
- M V Shrestha
- Department of Community Medicine, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal
| | - N Shrestha
- Department of Community Medicine, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal
| | - S C Sharma
- Department of Psychiatry, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal
| | - S K Joshi
- Department of Community Medicine, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal
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21
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Sharma K, Deo G, Timalsina S, Joshi A, Shrestha N, Neupane HC. Online Learning in the Face of COVID-19 Pandemic: Assessment of Students' Satisfaction at Chitwan Medical College of Nepal. Kathmandu Univ Med J (KUMJ) 2021; 18:40-47. [PMID: 33605237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Background Online learning can play a vital role in the process of teaching and learning during Corona Virus Disease 2019 (COVID-19) pandemic. However, learners' satisfaction is extremely important in effective implementation of the online learning, especially at institutions where it is newly adopted. Objective To assess satisfaction towards online learning and its predictors among students at Chitwan Medical College, Bharatpur. Method A web-based cross-sectional survey was undertaken among 434 undergraduate and postgraduate students from various academic programs who had participated in the online classes started during this COVID-19 pandemic. A structured questionnaire consisting of 31 items (5-point Likert scale) covering four major student satisfaction domains (learners' dimensions, technological characteristics, instructors' characteristics and course management and coordination) was distributed to the students using Google Form. Result More than half (53.5%) of the students were satisfied with the online learning, while 29.7% gave neutral views. Bivariate analyses found that all four domains scores were positively correlated with each other as well as with the students' overall satisfaction towards learning. In multivariate analysis, female gender [aOR: 2.72, p = 0.013], WiFi as internet modality for learning [aOR: 3.36, p = 0.001) and learners' dimension score [aOR: 1.27, p<0.001] were the significant predictors of students' satisfaction. Conclusion Although recently adopted, the satisfaction of the students towards online classes appears good, and prioritizing the identified predictors and working on the weak links could assist in enhancing students' satisfaction and better outcomes.
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Affiliation(s)
- K Sharma
- School of Nursing, Chitwan Medical College, Bharatpur, Nepal
| | - G Deo
- Department of Anesthesia, Chitwan Medical College, Bharatpur, Nepal
| | - S Timalsina
- Research Unit, Chitwan Medical College, Bharatpur, Nepal
| | - A Joshi
- School of Nursing, Chitwan Medical College, Bharatpur, Nepal
| | - N Shrestha
- Department of Community Medicine, Chitwan Medical College, Bharatpur, Nepal
| | - H C Neupane
- Department of Surgery, Chitwan Medical College, Bharatpur, Nepal
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Shakya S, Choosong T, Techato K, Gyawali K, Panthee B, Shrestha N, Dangal MR. Indoor Air Pollution (IAP) Traceable to Household Fuel Consumption and its Impact on Health. Kathmandu Univ Med J (KUMJ) 2021; 19:123-131. [PMID: 34812171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Energy is an essential and obligatory prerequisite of life. Indoor air pollution is one of the biggest environmental problems in the world being specifically concentrated in resource limited settings. Inspite of the availability of cleaner fuel technologies, people in resource limited setting still depend on traditional fuel to meet their basic needs resulting even in premature deaths. In Nepal people in rural areas are the pre-dominant users of biomass fuel, there is limited research focusing on rural areas particularly; women as they spend most of their time in kitchen. Reports were extensively searched for literature using preset keywords in English language peer-reviewed journals databases PubMed and Google Scholar published between the years 2005 to 2020. Citation details were examined, titles and abstracts screened for eligibility and if relevant, full text was also reviewed in greater detail. Findings were then presented primarily under two bold themes: Household fuel consumption: existing theories and evidence; and health impact of indoor air pollution. Several health effects were reported of indoor air pollution including respiratory illnesses, cardiovascular diseases, cancer, endocrine system disruption and pregnancy complications. These exposures almost double the health risks predominantly among children and women of rural communities as they are directly involved in household activities causing air pollution. Based on our review of evidence, women and children of rural households were the major victims. Further, determinants of household fuel consumption and health effects should be considered while formulating policies in regard to promoting accessibility of clean fuels and reducing household air pollutants.
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Affiliation(s)
- S Shakya
- Faculty of Environmental Management, Prince of Songkla University, Hatyai, Thailand
| | - T Choosong
- Faculty of Medicine, Prince of Songkla University, Hatyai, Thailand
| | - K Techato
- Faculty of Environmental Management, Prince of Songkla University, Hatyai, Thailand
| | - K Gyawali
- Sustainable Study and Research Institute, Kathmandu, Nepal
| | - B Panthee
- Patan Academy of Health Sciences, School of Nursing and Midwifery, Lalitpur, Nepal
| | - N Shrestha
- Chief Research Coordinate; Public Health Promotion and Development
| | - M R Dangal
- The School of Arts, Kathmandu University, Hattiban, Lalitpur
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Bland AR, Shrestha N, Bower RL, Rosengren RJ, Ashton JC. The effect of metformin in EML 4-ALK+ lung cancer alone and in combination with crizotinib in cell and rodent models. Biochem Pharmacol 2020; 183:114345. [PMID: 33227290 DOI: 10.1016/j.bcp.2020.114345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/11/2020] [Accepted: 11/16/2020] [Indexed: 01/12/2023]
Abstract
Cell based studies have suggested that the diabetes drug metformin may combine with the anaplastic lymphoma kinase receptor (ALK) inhibitor crizotinib to increase ALK positive lung cancer cell killing and overcome crizotinib resistance. We therefore tested metformin alone and in combination with crizotinib in vivo, by employing a xenograft mouse model of ALK positive lung cancer. We found that 14 days of daily oral metformin (100 mg/kg) alone had a moderate but statistically significant effect on tumour growth suppression, but in combination with crizotinib, produced no greater tumour suppression than crizotinib (25 mg/kg) alone. We also reassessed the effect of metformin on EML4-ALK positive lung cancer (H3122) cell viability. Although metformin alone did have a moderate effect on cell viability (30% suppression) this was only at a clinically irrelevant concentration (5 mM) and there was no additive effect with cytotoxic concentrations of crizotinib. Moreover, metformin did not overcome crizotinib resistance in our resistant cells. Nevertheless, we were able to show that metformin induces a G1-cell cycle arrest and apoptosis alone and in combination with crizotinib. Also, consistent with earlier work, the addition of insulin-like growth factor-1 (IGF-1) to EML4-ALK positive cancer cells reduced cell killing by crizotinib. We therefore hypothesised that the effect of metformin in vivo was not due to direct cytotoxicity on cancer cells, but by modulation of IGF-1 expression. We therefore measured levels of IGF-1 in plasma taken from mice treated with metformin, but found no difference between the drug treatment and control groups. We further hypothesised that the effect of metformin could be due to modulation of thrombospondin 1 (TSP-1), which metformin has been proposed to regulatein vivo, but again we found no difference between the experimental groups. Finally, we investigated the potential for liver and kidney toxicity, as well as CYP3A based interactions, from the combination of metformin with crizotinib.
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Affiliation(s)
- A R Bland
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - N Shrestha
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - R L Bower
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - R J Rosengren
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - J C Ashton
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand.
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Shrestha N, Yukihara E, Cusumano D, Placidi L. Al2O3:C and Al2O3:C,Mg optically stimulated luminescence 2D dosimetry applied to magnetic resonance guided radiotherapy. RADIAT MEAS 2020. [DOI: 10.1016/j.radmeas.2020.106439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wang T, Griffin B, Cremer P, Gamble G, Unai S, Shrestha N, Gordon S, Pettersson G, Desai M. Meta-analysis of computed tomography and magnetic resonance imaging for diagnosing mycotic aneurysms. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0160] [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: 11/12/2022] Open
Abstract
Abstract
Background
Mycotic aneurysms are a serious complication of infective endocarditis and bloodstream infection with high mortality and morbidity. Computed tomography (CT) and magnetic resonance (MRI) play major roles in detecting mycotic aneurysms, but their accuracy is not well established warranting this meta-analysis.
Purpose
We aimed to assess the diagnostic performance of CT and MRI for mycotic aneurysms in this meta-analysis.
Methods
Pubmed, Cochrane and Embase were searched from 1 January 1980–30 June 2019 for diagnostic studies reporting both sensitivity and specificity of CT and/or MRI for detecting mycotic aneurysms, and pooled using random effects models and Meta-DiSc 1.4 software.
Results
Amongst 1507 articles searched, 15 studies with 622 scans for 249 mycotic aneurysms included. CT was performed in 13 studies and MRI in 5 studies, looking at aortic and cerebral mycotic aneurysm in 12 and 3 studies respectively. The pooled sensitivities and specificities for all mycotic aneurysms with 95% confidence intervals were for CT 0.82 (0.77–0.87) and 0.93 (0.89–0.95) respectively, and for MRI 0.79 (0.61–0.91) and 0.89 (0.81–0.95) (Figure). CT or MRI had pooled sensitivities and specificities of 0.84 (0.78–0.89) and 0.92 (0.89–0.95) for aortic and 0.71 (0.54–0.85) and 0.90 (0.83–0.95) for cerebral mycotic aneurysms. Heterogeneity and publication bias was observed in some pooled analysis.
Conclusion
CT and MRI had moderately high diagnostic accuracy for mycotic aneurysms. Sensitivity was numerically higher for detecting aortic than cerebral mycotic aneurysms, with similar specificity. Study heterogeneity, publication bias and modest sample size from the literature were important limitations, warranting larger and higher quality studies.
Forrest plots for CT and MRI pooled data
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): National Heart Foundation of New Zealand - Overseas Clinical and Research Fellowship
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Affiliation(s)
- T.K.M Wang
- Cleveland Clinic, Cleveland, United States of America
| | - B.P Griffin
- Cleveland Clinic, Cleveland, United States of America
| | - P.C Cremer
- Cleveland Clinic, Cleveland, United States of America
| | - G.D Gamble
- The University of Auckland, Department of Medicine, Auckland, New Zealand
| | - S Unai
- Cleveland Clinic, Cleveland, United States of America
| | - N Shrestha
- Cleveland Clinic, Cleveland, United States of America
| | - S Gordon
- Cleveland Clinic, Cleveland, United States of America
| | - G Pettersson
- Cleveland Clinic, Cleveland, United States of America
| | - M.Y Desai
- Cleveland Clinic, Cleveland, United States of America
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Shrestha N, Ezechukwu HC, Holland OJ, Hryciw DH. Developmental programming of peripheral diseases in offspring exposed to maternal obesity during pregnancy. Am J Physiol Regul Integr Comp Physiol 2020; 319:R507-R516. [PMID: 32877239 DOI: 10.1152/ajpregu.00214.2020] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Obesity is an increasing global health epidemic that affects all ages, including women of reproductive age. During pregnancy, maternal obesity is associated with adverse pregnancy outcomes that lead to complications for the mother. In addition, maternal obesity can increase the risk of poor perinatal outcomes for the infant due to altered development. Recent research has investigated the effects of maternal obesity on peripheral organ development and health in later life in offspring. In this review, we have summarized studies that investigated the programming effects of maternal obesity before and during pregnancy on metabolic, cardiovascular, immune, and microbiome perturbations in offspring. Epidemiological studies investigating the effects of maternal obesity on offspring development can be complex due to other copathologies and genetic diversity. Animal studies have provided some insights into the specific mechanisms and pathways involved in programming peripheral disease risk. The effects of maternal obesity during pregnancy on offspring development are often sex specific, with sex-specific changes in placental transport and function suggestive that this organ is likely to play a central role. We believe that this review will assist in facilitating future investigations regarding the underlying mechanisms that link maternal obesity and offspring disease risk in peripheral organs.
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Affiliation(s)
- Nirajan Shrestha
- School of Medical Science, Griffith University, Southport, Queensland, Australia
| | - Henry C Ezechukwu
- Department of Medical Biochemistry, EKO University of Medicine and Health Science, Ijanikin, Nigeria
| | - Olivia J Holland
- School of Medical Science, Griffith University, Southport, Queensland, Australia.,Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Deanne H Hryciw
- Environmental Futures Research Institute, Griffith University, Nathan, Queensland, Australia.,School of Environment and Science, Griffith University, Nathan, Queensland, Australia.,Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
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Abstract
The endocannabinoid system (ECS) is associated with several physiological processes, including reproduction. This system consists of the cannabinoid receptors, endocannabinoid ligands, and enzymes that metabolize and degrade these fatty acids. Recent evidence shows that cannabinoid receptors are expressed in cells of the reproductive system, including endometrial stromal cells, ovaries, and sperm cells. Emerging and recent research suggests that the ECS may play a significant role in reproduction. The endocannabinoid ligands anandamide and 2-arachidonoylglycerol are crucial for successful endometrium decidualization, placental development, and embryo implantation. Alteration in cannabinoid receptor expression or in endocannabinoid homeostasis by excessive intake of cannabis during pregnancy is associated with negative pregnancy outcomes, including preterm birth. The use of medicinal cannabis is becoming more widespread in Western countries, especially in people of reproductive age. Cannabis contains phytocannabinoids, which modulate the ECS, and emerging evidence suggests that phytocannabinoids, through their action on cannabinoid receptors, may have a negative impact on fertility, pregnancy outcome, and fetal health. In this mini-review, we highlight the recent advances in the field, which explore the role of endocannabinoids in early pregnancy and the effects of excessive intake of phytocannabinoids in pregnancy outcomes.
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Affiliation(s)
- Henry C Ezechukwu
- Department of Medical Biochemistry, Eko University of Medicine and Health Science, Ijanikin, Lagos, Nigeria
| | - Cornelius A Diya
- Department of Medical Biochemistry, Eko University of Medicine and Health Science, Ijanikin, Lagos, Nigeria
| | - Nirajan Shrestha
- School of Medical Science, Griffith University, Nathan, Queensland, Australia
| | - Deanne H Hryciw
- Environmental Futures Research Institute, Griffith University, Nathan, Queensland, Australia
- Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
- School of Environment and Science, Griffith University, Nathan, Queensland, Australia
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28
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Pun B, Karki B, Shrestha B, Pathak R, Shrestha P, Shrestha N. Diagnostic utility of ultrasonography and computerized tomography in gall bladder perforation: A case report. Radiol Case Rep 2020; 15:1905-1908. [PMID: 32874382 PMCID: PMC7452024 DOI: 10.1016/j.radcr.2020.07.068] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 11/19/2022] Open
Abstract
Gall bladder (GB) perforation can be misdiagnosed as any other more common cause of acute abdomen. We present a case of a 72-year-female who had presented to the emergency department with an acute abdomen. The clinical presentation and the biochemical markers had pointed towards acute pancreatitis. However, the ultrasonographic examination of the abdomen and the pelvis suggested GB perforation which was confirmed by the multislice computerized tomography scan. Following this the patient underwent open cholecystectomy and was successfully managed. The invaluable contributions from the radiological modalities led to the successful management of the patient.
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Affiliation(s)
- B. Pun
- Department of Radiology, Om Hospital and Research Center Pvt. Ltd, GPO 13494, Chabahil, Kathmandu, Nepal
| | - B. Karki
- Department of Critical Care Medicine, Om Hospital and Research Center Pvt. Ltd, Chabahil, Kathmandu, Nepal
- Corresponding author.
| | - B. Shrestha
- Department of Gastrosurgery, Om Hospital and Research Center Pvt. Ltd, Chabahil, Kathmandu, Nepal
| | - R. Pathak
- Department of Gastroenterology, Maharajgunj Medical Campus, Institute of Medicine, Mahrajgunj, Kathmandu, Nepal
| | - P.S. Shrestha
- Department of Anaesthesia, Maharajgunj Medical Campus, Institute of Medicine, Mahrajgunj, Kathmandu, Nepal
| | - N. Shrestha
- Department of Anaesthesia, Maharajgunj Medical Campus, Institute of Medicine, Mahrajgunj, Kathmandu, Nepal
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Shrestha N, Holland OJ, Kent NL, Perkins AV, McAinch AJ, Cuffe JSM, Hryciw DH. Maternal High Linoleic Acid Alters Placental Fatty Acid Composition. Nutrients 2020; 12:nu12082183. [PMID: 32717842 PMCID: PMC7468786 DOI: 10.3390/nu12082183] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/15/2020] [Accepted: 07/21/2020] [Indexed: 12/14/2022] Open
Abstract
Fetal development is modulated by maternal nutrition during pregnancy. The dietary intake of linoleic acid (LA), an essential dietary n-6 polyunsaturated fatty acid (PUFA), has increased. We previously published that increased LA consumption during pregnancy does not alter offspring or placental weight but fetal plasma fatty acid composition; the developing fetus obtains their required PUFA from the maternal circulation. However, it is unknown if increased maternal linoleic acid alters placental fatty acid storage, metabolism, transport, and general placental function. Female Wistar-Kyoto rats were fed either a low LA diet (LLA; 1.44% of energy from LA) or high LA diet (HLA; 6.21% of energy from LA) for 10 weeks before pregnancy and during gestation. Rats were sacrificed at embryonic day 20 (E20, term = 22 days) and placentae collected. The labyrinth of placentae from one male and one female fetus from each litter were analyzed. High maternal LA consumption increased placental total n-6 and LA concentrations, and decreased total n-3 PUFA, alpha-linolenic acid (ALA), and docosahexaenoic acid (DHA). Fatty acid desaturase 1 (Fads1), angiopoietin-like 4 (Angptl4), and diacylglycerol lipase beta (Daglb) mRNA were downregulated in placentae from offspring from HLA dams. Maternal high LA downregulated the fatty acid transport protein 4 (Fatp4) and glucose transporter 1 (Slc2a1) mRNA in placentae. IL-7 and IL-10 protein were decreased in placentae from offspring from HLA dams. In conclusion, a high maternal LA diet alters the placental fatty acid composition, inflammatory proteins, and expressions of nutrient transporters, which may program deleterious outcomes in offspring.
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Affiliation(s)
- Nirajan Shrestha
- School of Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (O.J.H.); (A.V.P.)
| | - Olivia J. Holland
- School of Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (O.J.H.); (A.V.P.)
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD 4000, Australia
| | - Nykola L. Kent
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4067, Australia;
| | - Anthony V. Perkins
- School of Medical Science, Griffith University, Southport, QLD 4222, Australia; (N.S.); (O.J.H.); (A.V.P.)
| | - Andrew J. McAinch
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3000, Australia;
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St. Albans, VIC 3021, Australia
| | - James S. M. Cuffe
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4067, Australia;
- Correspondence: (J.S.M.C.); (D.H.H.); Tel.: +61-737-353-601 (D.H.H.)
| | - Deanne H. Hryciw
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3000, Australia;
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- Environmental Futures Research Institute, Griffith University, Nathan, QLD 4111, Australia
- Correspondence: (J.S.M.C.); (D.H.H.); Tel.: +61-737-353-601 (D.H.H.)
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Shrestha N, Suwal A, Kc S, Adhikari SP. Translation with Cross-cultural Adaptation of Cerebral Palsy Quality of Life Questionnaire for Children into Nepali and its Psychometric Properties. Kathmandu Univ Med J (KUMJ) 2020; 18:249-255. [PMID: 34158431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Background Cerebral Palsy Quality of Life questionnaire for children primary caregiver version is the widely used condition specific outcome measure which assesses the wellbeing of the child. It has been translated to many languages and shows excellent psychometric properties. Availability in Nepali would facilitate the use in clinical practice and research in Nepali population. Objective The objective of this study was translation with cross-culturally adaption of Cerebral Palsy Quality of Life questionnaire for children primary caregiver version into Nepali and assess its psychometric properties. Method Cross-cultural adaptation was performed using forward and backward translation protocol. Pretesting was done on six participants to confirm that the original concept was preserved. The Nepali version of questionnaire was administered twice for data collection. The feasibility, sensitivity, internal consistency and test-retest reliability was determined. Result Culturally adapted Nepali version showed good feasibility only the domain "Access to service" had a highest missing score related to use of the special equipment, attending kindergarten and applying for respite care. Floor and ceiling effect were < 15% in all the domains except in few items of "Pain and impact of disability" and "Social well being and acceptance". Test retest reliability (0.82 - 0.91) and internal consistency (0.68 - 0.84) was good. There were weak association of domains with the gross motor functional classification system level. Conclusion Cross-culturally adapted Nepali Cerebral Palsy Quality of Life questionnaire for children primary caregiver was developed. It demonstrates good psychometric properties confirming to assess quality of life of children with Cerebral palsy in Nepal.
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Affiliation(s)
- N Shrestha
- Department of Physiotherapy, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - A Suwal
- Department of Physiotherapy, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Kc
- Department of Physiotherapy, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S P Adhikari
- Department of Physiotherapy, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
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Shrestha N, Sleep S, Cuffe JS, Holland OJ, Perkins AV, Muhlhausler BS, McAinch AJ, Hryciw DH. Role of a Maternal Diet High in Linoleic Acid on the Plasma Fatty Acid Composition in Rat Offspring. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.03909] [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] [Indexed: 11/11/2022]
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32
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Shrestha N, Bland AR, Bower RL, Rosengren RJ, Ashton JC. Inhibition of Mitogen-Activated Protein Kinase Kinase Alone and in Combination with Anaplastic Lymphoma Kinase (ALK) Inhibition Suppresses Tumor Growth in a Mouse Model of ALK-Positive Lung Cancer. J Pharmacol Exp Ther 2020; 374:134-140. [PMID: 32284325 DOI: 10.1124/jpet.120.266049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 04/08/2020] [Indexed: 01/09/2023] Open
Abstract
Anaplastic lymphoma kinase (ALK)-positive non-small-cell lung cancer most commonly arises through EML4 (Echinoderm Microtuble Like 4)-ALK chromosomal fusion. We have previously demonstrated that combination of the ALK inhibitor crizotinib with the MEK inhibitor selumetinib was highly effective at reducing cell viability of ALK-positive non-small-cell lung cancer (H3122) cells. In this study, we further investigated the efficacy of crizotinib and selumetinib combination therapy in an in vivo xenograft model of ALK-positive lung cancer. Crizotinib decreased tumor volume by 52% compared with control, and the drug combination reduced tumor growth compared with crizotinib. In addition, MEK inhibition alone reduced tumor growth by 59% compared with control. Crizotinib and selumetinib alone and in combination were nontoxic at the dose of 25 mg/kg, with values for ALT (<80 U/l) and creatinine (<2 mg/dl) within the normal range. Our results support the combined use of crizotinib with selumetinib in ALK-positive lung cancer but raise the possibility that a sufficient dose of an MEK inhibitor alone may be as effective as adding an MEK inhibitor to an ALK inhibitor. SIGNIFICANCE STATEMENT: This study contains in vivo evidence supporting the use of combination MEK inhibitors in ALK+ lung cancer research, both singularly and in combination with ALK inhibitors. Contrary to previously published reports, our results suggest that it is possible to gain much of the benefit from combination treatment with an MEK inhibitor alone, at a tolerable dose.
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Affiliation(s)
- N Shrestha
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - A R Bland
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - R L Bower
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - R J Rosengren
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - J C Ashton
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
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Hryciw DH, Shrestha N, Sleep S, Cuffe J, Holland O, Perkins A, McAinch A. Elevated maternal linoleic acid alters placental fatty acids, nutrient transporters and inflammatory proteins. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.03732] [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: 11/11/2022]
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34
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McKeever S, Sholom S, Shrestha N, Klein D. Radiophotoluminescence from Ag-doped alkali-phosphate glass in real time, during irradiation with a LINAC x-ray beam: A comparison of simulations and experiment. RADIAT MEAS 2020. [DOI: 10.1016/j.radmeas.2020.106278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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McKeever S, Sholom S, Shrestha N, Klein D. An in-situ, fiber-optic system for sub-surface, environmental dose measurements using radiophotoluminescence from Ag-doped alkali-phosphate glass. RADIAT MEAS 2020. [DOI: 10.1016/j.radmeas.2020.106273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shrestha N, Sleep SL, Cuffe JSM, Holland OJ, McAinch AJ, Dekker Nitert M, Hryciw DH. Pregnancy and diet-related changes in the maternal gut microbiota following exposure to an elevated linoleic acid diet. Am J Physiol Endocrinol Metab 2020; 318:E276-E285. [PMID: 31846371 DOI: 10.1152/ajpendo.00265.2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Dietary intakes of linoleic acid (LA) have increased, including in women of reproductive age. Changes in maternal gut microbiome have been implicated in the metabolic adaptions that occur during pregnancy. We aimed to investigate whether consumption of a diet with elevated LA altered fecal microbiome diversity before and during pregnancy. Female Wistar-Kyoto rats consumed a high-LA diet (HLA: 6.21% of energy) or a low-LA diet (LLA: 1.44% of energy) for 10 wk before mating and during pregnancy. DNA was isolated from fecal samples before pregnancy [embryonic day 0 (E0)], or during pregnancy at E10 and E20. The microbiome composition was assessed with 16S rRNA sequencing. At E0, the beta-diversity of LLA and HLA groups differed with HLA rats having significantly lower abundance of the genera Akkermansia, Peptococcus, Sutterella, and Xo2d06 but higher abundance of Butyricimonas and Coprococcus. Over gestation, in LLA but not HLA rats, there was a reduction in alpha-diversity and an increase in beta-diversity. In the LLA group, the abundance of Akkermansia, Blautia, rc4.4, and Streptococcus decreased over gestation, whereas Coprococcus increased. In the HLA group; only the abundance of Butyricimonas decreased. At E20, there were no differences in alpha- and beta-diversity, and the abundance of Roseburia was significantly increased in the HLA group. In conclusion, consumption of a HLA diet alters gut microbiota composition, as does pregnancy in rats consuming a LLA diet. In pregnancy, consumption of a HLA diet does not alter gut microbiota composition.
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Affiliation(s)
- Nirajan Shrestha
- School of Medical Science, Griffith University, Southport, Queensland, Australia
| | - Simone L Sleep
- School of Medical Science, Griffith University, Southport, Queensland, Australia
| | - James S M Cuffe
- School of Medical Science, Griffith University, Southport, Queensland, Australia
- School of Biomedical Sciences, The University of Queensland, St. Lucia, Queensland, Australia
| | - Olivia J Holland
- School of Medical Science, Griffith University, Southport, Queensland, Australia
| | - Andrew J McAinch
- Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
- Australian Institute for Musculoskeletal Science, Victoria University, St. Albans, Victoria, Australia
| | - Marloes Dekker Nitert
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Queensland, Australia
| | - Deanne H Hryciw
- Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
- School of Environment and Science, Griffith University, Nathan, Queensland, Australia
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Shrestha N, Sleep SL, Cuffe JSM, Holland OJ, Perkins AV, Yau SY, McAinch AJ, Hryciw DH. Role of omega-6 and omega-3 fatty acids in fetal programming. Clin Exp Pharmacol Physiol 2020; 47:907-915. [PMID: 31883131 DOI: 10.1111/1440-1681.13244] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [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: 07/23/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 12/20/2022]
Abstract
Maternal nutrition plays a critical role in fetal development and can influence adult onset of disease. Linoleic acid (LA) and alpha-linolenic acid (ALA) are major omega-6 (n-6) and n-3 polyunsaturated fatty acids (PUFA), respectively, that are essential in our diet. LA and ALA are critical for the development of the fetal neurological and immune systems. However, in recent years, the consumption of n-6 PUFA has increased gradually worldwide, and elevated n-6 PUFA consumption may be harmful to human health. Consumption of diets with high levels of n-6 PUFA before or during pregnancy may have detrimental effects on fetal development and may influence overall health of offspring in adulthood. This review discusses the role of n-6 PUFA in fetal programming, the importance of a balance between n-6 and n-3 PUFAs in the maternal diet, and the need of further animal models and human studies that critically evaluate both n-6 and n-3 PUFA contents in diets.
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Affiliation(s)
- Nirajan Shrestha
- School of Medical Science, Griffith University, Southport, Qld, Australia
| | - Simone L Sleep
- School of Medical Science, Griffith University, Southport, Qld, Australia
| | - James S M Cuffe
- School of Medical Science, Griffith University, Southport, Qld, Australia.,School of Biomedical Sciences, The University of Queensland, St Lucia, Qld, Australia
| | - Olivia J Holland
- School of Medical Science, Griffith University, Southport, Qld, Australia
| | - Anthony V Perkins
- School of Medical Science, Griffith University, Southport, Qld, Australia
| | - Suk Yu Yau
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong.,University Research Facility in Behavioural and Systems Neuroscience, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Andrew J McAinch
- Institute for Health and Sport, Victoria University, Melbourne, Vic., Australia.,Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St. Albans, Vic., Australia
| | - Deanne H Hryciw
- Institute for Health and Sport, Victoria University, Melbourne, Vic., Australia.,School of Environment and Science, Griffith University, Nathan, Qld, Australia
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Baidya PR, Shrestha K, Deuja ML, Rai A, Shrestha N, Shrestha A, Baidya A. Permcath - A Vascular Access for Hemodialysis, Our Experience in Last Two Years. Kathmandu Univ Med J (KUMJ) 2019; 17:263-266. [PMID: 33311033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Background The double lumen tunneled catheter (Permcath) is mostly used as an alternative access, not as a temporary access in End Stage Renal Disease patients requiring hemodialysis. If there is no possibility of other access modalities, failed or unable to create native arteriovenous fistula (AVF), Permcath can be a very good alternative. Objective To find the indications, complications and results of Permcath insertion. Method We reviewed the results of 92 Permcath inserted under ultrasound guidance in two different hospitals, 45 in Sahid Dharma Bhakta National Transplant Center (SDNTC), Bhaktapur and 47 in Nidan Hospital Pvt. Ltd., Lalitpur from April 2016 to April 2018 retrospectively. Result We had inserted 55 Permcath (59.78%) in right internal jugular vein (IJV), 25 (27.17%) in left internal jugular vein and 12(13.04%) in femoral vein. In terms of major complications, two (2.17%) patients had profound hypotension, bradycardia and cardiac arrest due to left internal jugular vein tear. Three patients (3.26%) died within a week due to septicemia and 23 patients (25%) died with multiple causes within one year. Of the cases, till now in 39 cases (42.39%) Permcath has been removed. Major reasons of removal of Permcath are post renal transplant in 18 cases (19.57%), Arterio Venous Fistula maturation in 13 cases (14.13%), Infection in six patients (6.52%) and non functioning Permcath in two patients (2.17%). Conclusion Permcath remains a reliable method for short term vascular access, hence can be used as a bridge to renal transplant or arteriovenous fistula maturation.
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Affiliation(s)
- P R Baidya
- Department of Cardiothoracic and Vascular Surgery, Sahid Dharma Bhakta National Transplant Center, Bhaktapur, Nepal
| | - K Shrestha
- Department of Nephrology, Sahid Dharma Bhakta National Transplant Center, Bhaktapur, Nepal
| | - M L Deuja
- Department of Anesthesia, Sahid Dharma Bhakta National Transplant Center, Bhaktapur, Nepal
| | - A Rai
- Department of Anesthesia, Sahid Dharma Bhakta National Transplant Center, Bhaktapur, Nepal
| | - N Shrestha
- Department of Anesthesia, Sahid Dharma Bhakta National Transplant Center, Bhaktapur, Nepal
| | - A Shrestha
- Department of Anesthesia, Nidan Hospital, Pulchowk, Nepal
| | - A Baidya
- Intern, Nepal Medical College, Jorpati, Kathmandu
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May T, Scudder S, Joshi S, Kohlmann M, Shrestha N, Lee N, Højbjerg J, Lai J, Madsen A, Clement M, Meldgaard P, Tsourounis M, Sørensen B, Kohlmann A, O’Donnell P, Halait H. Enhanced access to EGFR molecular testing in NSCLC using a cell-free DNA tube for liquid biopsy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz257.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shrestha N, Cuffe JSM, Holland OJ, Bulmer AC, Hill M, Perkins AV, Muhlhausler BS, McAinch AJ, Hryciw DH. Elevated maternal linoleic acid reduces circulating leptin concentrations, cholesterol levels and male fetal survival in a rat model. J Physiol 2019; 597:3349-3361. [PMID: 31124126 DOI: 10.1113/jp277583] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 05/09/2019] [Indexed: 01/28/2023] Open
Abstract
KEY POINTS Linoleic acid consumption is increasing in Western populations. We investigated whether elevated linoleic acid in pregnancy was deleterious to mothers or offspring. Maternal and fetal body and organ weights were not affected by elevated linoleic acid consumption. Maternal lipids and leptin were altered following elevated linoleic acid consumption. Male offspring numbers were reduced following elevated linoleic acid consumption. ABSTRACT Dietary intakes of linoleic acid (LA) have increased dramatically in Western populations, including in women of reproductive age. Pro-inflammatory effects of LA may have detrimental effects on maternal and offspring outcomes. We aimed to investigate whether consumption of a maternal diet with elevated LA altered maternal inflammatory or metabolic markers during pregnancy, fetal growth and/or the sex ratio of the offspring. Female Wistar Kyoto rats consumed a diet high in LA (HLA) (6.21% of energy) or a diet low in LA (LLA) (1.44% of energy) for 10 weeks prior to mating and during pregnancy. Pregnant rats were killed at embryonic day 20 (E20). There were no differences in maternal or fetal body weights or organ weights in the HLA group compared to the LLA group. There was no difference in maternal circulating cytokine concentrations between dietary groups. In the maternal liver, IL-1α concentrations were significantly lower, and TNF-α and IL-7 significantly higher in the HLA group. Total plasma cholesterol, LDL-cholesterol, HDL cholesterol and the total:HDL cholesterol ratio were lower in dams fed the HLA diet. mRNA expression of sterol regulatory element binding transcription factor 1 (SREBF-1) and leptin in maternal adipose tissue was lower in the HLA group, as were circulating leptin concentrations. The proportion of male fetuses was lower and circulating prostaglandin E metabolite concentrations were increased in the HLA group. In conclusion, consumption of a maternal diet high in linoleic acid alters cholesterol metabolism and prostaglandin E metabolite concentrations, which may contribute to the reduced proportion of male offspring.
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Affiliation(s)
- Nirajan Shrestha
- School of Medical Science, Griffith University, Southport, QLD, Australia
| | - James S M Cuffe
- School of Medical Science, Griffith University, Southport, QLD, Australia.,School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Olivia J Holland
- School of Medical Science, Griffith University, Southport, QLD, Australia
| | - Andrew C Bulmer
- School of Medical Science, Griffith University, Southport, QLD, Australia
| | - Melissa Hill
- School of Environment and Science, Griffith University, Nathan, QLD, Australia
| | - Anthony V Perkins
- School of Medical Science, Griffith University, Southport, QLD, Australia
| | - Beverly S Muhlhausler
- Food and Nutrition Research Group, Department of Wine and Food Science, School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA, Australia
| | - Andrew J McAinch
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.,Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St Albans, VIC, Australia
| | - Deanne H Hryciw
- School of Environment and Science, Griffith University, Nathan, QLD, Australia.,Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
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Shrestha N, Cuffe JSM, Holland OJ, Perkins AV, McAinch AJ, Hryciw DH. Linoleic Acid Increases Prostaglandin E2 Release and Reduces Mitochondrial Respiration and Cell Viability in Human Trophoblast-Like Cells. Cell Physiol Biochem 2019; 52:94-108. [PMID: 30790507 DOI: 10.33594/000000007] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 10/02/2018] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS The omega 6 fatty acid (FA) linoleic acid (LA) is required for embryonic development; however, omega 6 FAs can alter cellular metabolism via inflammation or modulation of mitochondrial function. Fetal LA is obtained from the maternal diet, and FAs are transported to the fetus via placental FA transporters (FATPs) and binding proteins (FABPs), but specific proteins responsible for LA transport in placental trophoblasts are unknown. Dietary LA consumption is increasing, but the effect of elevated LA on trophoblast function is not clear. METHODS Swan71 trophoblasts were exposed to physiological and supraphysiological concentrations of LA for 24 hours. Quantification of mRNA was determined using real time PCR, and protein concentration was determined by Western blot analysis. Cell viability, citrate synthase activity and mitochondrial respiration were determined. RESULTS Exposure to 300 and 500 μM LA increased FATP1 and FATP4 mRNA expression. 500 μM LA increased FATP1 and FATP4 protein expression. Exposure to 500 μM increased FABP5 mRNA expression, while exposure to 100 to 500 μM LA decreased FABP3 mRNA expression. 300 and 500 μM LA decreased FABP3 protein expression. Cell viability was decreased by exposure to LA (100 to 1000 μM). Citrate synthase activity and routine mitochondrial respiration were significantly decreased by exposure to 300 and 500 μM LA, and maximal respiration and spare respiratory capacity were decreased by exposure to 100 to 500 μM LA. 300 and 500 μM LA increased reactive oxygen species generation in human trophoblasts. Moreover, exposure to 300 and 500 μM LA decreased IL-6 secretion. Exposure to 500 μM LA increased IL-8, NF-κB and PPAR-γ mRNA expression, but decreased NF-κB protein expression. 300 μM LA decreased IL-8 protein expression. Further, exposure to 100 to 500 μM LA increased prostaglandin E2 and leukotriene B₄ release. CONCLUSION Exposure to LA decreases cell viability, alters mRNA expression of FA transport related proteins, mitochondrial respiration and function, and inflammatory responses in trophoblasts. These findings may have implications on placental function when women consume high levels of LA.
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Affiliation(s)
- Nirajan Shrestha
- School of Medical Science, Griffith University, Southport, Australia
| | - James S M Cuffe
- School of Medical Science, Griffith University, Southport, Australia
| | - Olivia J Holland
- School of Medical Science, Griffith University, Southport, Australia
| | - Anthony V Perkins
- School of Medical Science, Griffith University, Southport, Australia
| | - Andrew J McAinch
- Institute for Health and Sport, Victoria University, Melbourne, Australia.,Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St. Albans, Australia
| | - Deanne H Hryciw
- Institute for Health and Sport, Victoria University, Melbourne, Australia.,School of Environment and Science, Griffith University, Nathan, Australia,
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Shrestha N, Nimick M, Rosengren R, Ashton J. P2.01-89 Synergistic Cytotoxicity Through MAPK/ERK Pathway and ALK Inhibition in Crizotinib Resistant EML4-ALK-Positive Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1143] [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: 10/28/2022]
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Shrestha N, Weber PH, Burke SV, Wysocki WP, Duvall MR, Bujarski JJ. Next generation sequencing reveals packaging of host RNAs by brome mosaic virus. Virus Res 2018; 252:82-90. [PMID: 29753892 DOI: 10.1016/j.virusres.2018.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/05/2018] [Accepted: 05/09/2018] [Indexed: 12/28/2022]
Abstract
Although RNA viruses evolved the mechanisms of specific encapsidation, miss-packaging of cellular RNAs has been reported in such RNA virus systems as flock house virus or cucumber necrosis virus. To find out if brome mosaic virus (BMV), a tripartite RNA virus, can package cellular RNAs, BMV was propagated in barley and in Nicotiana benthamiana hosts, purified by cesium chloride (CsCl) gradient ultracentrifugation followed by nuclease treatment to remove any contaminating cellular (host) RNAs. The extracted virion RNA was then sequenced by using next-generation sequencing (NGS RNA-Seq) with the Illumina protocol. Bioinformatic analysis revealed the content of host RNAs ranging from 0.07% for BMV extracted from barley to 0.10% for the virus extracted from N. benthamiana. The viruses from two sources appeared to co-encapsidate different patterns of host-RNAs, including ribosomal RNAs (rRNAs), messenger RNAs (mRNAs) but also mitochondrial and plastid RNAs and, interestingly, transposable elements, both transposons and retrotransposons. Our data reveal that BMV virions can carry host RNAs, having a potential to mediate horizontal gene transfer (HGT) in plants.
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Affiliation(s)
- N Shrestha
- Department of Biological Sciences and Plant Molecular and Bioinformatics Center, Northern Illinois University, DeKalb, IL 60115, USA
| | - P H Weber
- Department of Biological Sciences and Plant Molecular and Bioinformatics Center, Northern Illinois University, DeKalb, IL 60115, USA.
| | - S V Burke
- Department of Biological Sciences and Plant Molecular and Bioinformatics Center, Northern Illinois University, DeKalb, IL 60115, USA
| | - W P Wysocki
- Department of Biological Sciences and Plant Molecular and Bioinformatics Center, Northern Illinois University, DeKalb, IL 60115, USA.
| | - M R Duvall
- Department of Biological Sciences and Plant Molecular and Bioinformatics Center, Northern Illinois University, DeKalb, IL 60115, USA
| | - J J Bujarski
- Department of Biological Sciences and Plant Molecular and Bioinformatics Center, Northern Illinois University, DeKalb, IL 60115, USA; Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland.
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Spindeldreier C, Schrenk O, Ahmed M, Shrestha N, Karger C, Greilich S, Pfaffenberger A, Yukihara E. Feasibility of dosimetry with optically stimulated luminescence detectors in magnetic fields. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.03.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ahmed M, Shrestha N, Ahmad S, Schnell E, Akselrod M, Yukihara E. Demonstration of 2D dosimetry using Al 2 O 3 optically stimulated luminescence films for therapeutic megavoltage x-ray and ion beams. RADIAT MEAS 2017. [DOI: 10.1016/j.radmeas.2017.04.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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47
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Amatya B, Shrestha N. Prevalence of Malnutrition in a Rural Residential Sanskrit School in Baglung, Nepal. JNMA J Nepal Med Assoc 2017; 56:153-157. [PMID: 28598454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023] Open
Abstract
INTRODUCTION Under-nutrition is a condition in which there is inadequate consumption, poor absorption or excessive loss of nutrients. Nepal still faces high chronic as well as acute under-nutrition in children. The following study was conducted a Sanskrit school in rural Baglung to find the prevalence of malnutrition among the children which could reflect the nutritional status of the community. METHODS Out of 60 students admitted to the school, only 43 were present at the time when we collected our data. Weight was measured with a standard weighing scale and standing height with a measuring tape attached to the wall. Data were filled up in proforma, entered in Microsoft Excel 2013 and were analyzed and indicators calculated with SPSS version 20 using WHO Child Growth Reference data for 5-19 years and macros. RESULTS Stunting (Z score < -2) was found in 53.5% of the study group and severe stunting (Z score < -3) was found in 25.6%. 12.5% of the 8 children under 10 years in our study had weight-for-age < -2 Z score which indicates underweight. No one was severely underweight. In our study, 2.3% had severe thinness (Z-score < -3), 14% had thinness (Z-score < -2). No one was overweight or obese. CONCLUSIONS The prevalence of malnutrition was high among the students of the rural Sanskrit school where the study was conducted.
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Affiliation(s)
- B Amatya
- Dhaulagiri Zonal Hospital, Baglung, Nepal
| | - N Shrestha
- Dhaulagiri Zonal Hospital, Baglung, Nepal
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Ahmed MF, Shrestha N, Schnell E, Ahmad S, Akselrod MS, Yukihara EG. Characterization of Al2O3optically stimulated luminescence films for 2D dosimetry using a 6 MV photon beam. Phys Med Biol 2016; 61:7551-7570. [DOI: 10.1088/0031-9155/61/21/7551] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Araújo F, Shrestha N, Gomes MJ, Herranz-Blanco B, Liu D, Hirvonen JJ, Granja PL, Santos HA, Sarmento B. In vivo dual-delivery of glucagon like peptide-1 (GLP-1) and dipeptidyl peptidase-4 (DPP4) inhibitor through composites prepared by microfluidics for diabetes therapy. Nanoscale 2016; 8:10706-13. [PMID: 27150301 PMCID: PMC5047059 DOI: 10.1039/c6nr00294c] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 04/19/2016] [Indexed: 05/23/2023]
Abstract
Oral delivery of proteins is still a challenge in the pharmaceutical field. Nanoparticles are among the most promising carrier systems for the oral delivery of proteins by increasing their oral bioavailability. However, most of the existent data regarding nanosystems for oral protein delivery is from in vitro studies, lacking in vivo experiments to evaluate the efficacy of these systems. Herein, a multifunctional composite system, tailored by droplet microfluidics, was used for dual delivery of glucagon like peptide-1 (GLP-1) and dipeptidyl peptidase-4 inhibitor (iDPP4) in vivo. Oral delivery of GLP-1 with nano- or micro-systems has been studied before, but the simultaneous nanodelivery of GLP-1 with iDPP4 is a novel strategy presented here. The type 2 diabetes mellitus (T2DM) rat model, induced through the combined administration of streptozotocin and nicotinamide, a non-obese model of T2DM, was used. The combination of both drugs resulted in an increase in the hypoglycemic effects in a sustained, but prolonged manner, where the iDPP4 improved the therapeutic efficacy of GLP-1. Four hours after the oral administration of the system, blood glucose levels were decreased by 44%, and were constant for another 4 h, representing half of the glucose area under the curve when compared to the control. An enhancement of the plasmatic insulin levels was also observed 6 h after the oral administration of the dual-drug composite system and, although no statistically significant differences existed, the amount of pancreatic insulin was also higher. These are promising results for the oral delivery of GLP-1 to be pursued further in a chronic diabetic model study.
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Affiliation(s)
- F Araújo
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal. and INEB - Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal and ICBAS - Instituto Ciências Biomédicas Abel Salazar, Universidade do Porto, 4150-180 Porto, Portugal and Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00790 Helsinki, Finland
| | - N Shrestha
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00790 Helsinki, Finland
| | - M J Gomes
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal. and INEB - Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal and ICBAS - Instituto Ciências Biomédicas Abel Salazar, Universidade do Porto, 4150-180 Porto, Portugal
| | - B Herranz-Blanco
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00790 Helsinki, Finland
| | - D Liu
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00790 Helsinki, Finland
| | - J J Hirvonen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00790 Helsinki, Finland
| | - P L Granja
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal. and INEB - Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal and ICBAS - Instituto Ciências Biomédicas Abel Salazar, Universidade do Porto, 4150-180 Porto, Portugal
| | - H A Santos
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, FI-00790 Helsinki, Finland
| | - B Sarmento
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal. and INEB - Instituto de Engenharia Biomédica, Universidade do Porto, 4200-135 Porto, Portugal and CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, 4585-116 Gandra, Portugal
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Shrestha N, Chand L, Han MK, Lee SO, Kim CY, Jeong YJ. Glutamine inhibits CCl4 induced liver fibrosis in mice and TGF-β1 mediated epithelial-mesenchymal transition in mouse hepatocytes. Food Chem Toxicol 2016; 93:129-37. [PMID: 27137983 DOI: 10.1016/j.fct.2016.04.024] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 04/27/2016] [Accepted: 04/27/2016] [Indexed: 12/11/2022]
Abstract
Glutamine, traditionally a non-essential amino acid, now has been considered as essential in serious illness and injury. It is a major precursor for glutathione synthesis. However, the anti-fibrotic effect of glutamine and its molecular mechanism in experimental liver fibrosis have not been explored. In the present study we aimed to examine the potential role of glutamine in carbon tetrachloride (CCl4) induced liver fibrosis and TGF-β1 mediated epithelial mesenchymal transition (EMT) and apoptosis in mouse hepatocytes. Liver fibrosis was induced by intraperitoneal injection of CCl4 three times a week for 10 weeks. Glutamine treatment effectively attenuated liver injury and oxidative stress. Collagen content was significantly decreased in liver sections of glutamine treated mice compared to CCl4 model mice. Furthermore, glutamine decreased expression level of α-SMA and TGF-β in liver tissue. Our in vitro study showed that TGF-β1 treatment in hepatocytes resulted in loss of E-cadherin and increased expression of mesenchymal markers and EMT related transcription factor. In addition, TGF-β1 increased the expression of apoptotic markers. However, glutamine interestingly suppressed TGF-β1 mediated EMT and apoptosis. In conclusion, our results suggest that glutamine ameliorates CCl4 induced liver fibrosis and suppresses TGF-β1 induced EMT progression and apoptosis.
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Affiliation(s)
- Nirajan Shrestha
- Laboratory of Liver Regeneration, Biomedical Research Institute, Chonbuk National University Hospital, 561-712, Jeonju, South Korea
| | - Lokendra Chand
- Laboratory of Liver Regeneration, Biomedical Research Institute, Chonbuk National University Hospital, 561-712, Jeonju, South Korea
| | - Myung Kwan Han
- Department of Microbiology, Chonbuk National University Medical School, 561-712, Jeonju, South Korea
| | - Seung Ok Lee
- Department of Internal Medicine, Chonbuk National University Medical School, 561-712, Jeonju, South Korea
| | - Chan Young Kim
- Department of Surgery, Chonbuk National University Medical School, 561-712, Jeonju, South Korea
| | - Yeon Jun Jeong
- Laboratory of Liver Regeneration, Biomedical Research Institute, Chonbuk National University Hospital, 561-712, Jeonju, South Korea; Department of Surgery, Chonbuk National University Medical School, 561-712, Jeonju, South Korea.
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