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deVries JM, Sidhu S, Kimsey KM, Barnett GS, Wilsey M. No Stone Left Unturned: Pediatric Pancreatic Stones Presenting With Obstructive Jaundice. JPGN Rep 2022; 3:e217. [PMID: 37168618 PMCID: PMC10158305 DOI: 10.1097/pg9.0000000000000217] [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] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 04/27/2022] [Indexed: 05/13/2023]
Abstract
Pancreatic lithiasis, the formation of calcifications in the pancreatic duct, occurs uncommonly in pediatric patients but can occur more frequently with chronic pancreatitis (CP). Cystic fibrosis (CF) is one of the major causes of pancreatic lithiasis in pediatric patients, with mutations in the CF transmembrane conductance regulator (CFTR) gene reported in up to 23% of pediatric CP patients. Mutations in the CFTR gene can lead to mild cases of CF, which may delay diagnosis and treatment. In such cases, pancreatitis can be the presenting symptom in children with CF. We report a unique case of a 10-year-old female with previously undiagnosed and untreated CF presenting with abdominal pain, vomiting, and obstructive jaundice. Her pancreatic lithiasis and biliary obstruction were successfully treated with endoscopic retrograde cholangiopancreatography (ERCP).
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Affiliation(s)
- Jonathan M. deVries
- Department of Pediatric Gastroenterology and Nutrition, Johns Hopkins All Children’s Hospital, St. Petersburg, Florida
| | - Sarah Sidhu
- Department of Pediatric Gastroenterology and Nutrition, Johns Hopkins All Children’s Hospital, St. Petersburg, Florida
| | - Kathryn M. Kimsey
- Department of Pediatric Gastroenterology and Nutrition, Johns Hopkins All Children’s Hospital, St. Petersburg, Florida
| | - Grafton S. Barnett
- Department of Pediatric Gastroenterology and Nutrition, Johns Hopkins All Children’s Hospital, St. Petersburg, Florida
| | - Michael Wilsey
- Department of Pediatric Gastroenterology and Nutrition, Johns Hopkins All Children’s Hospital, St. Petersburg, Florida
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2
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Nicholson MR, Alexander E, Ballal S, Davidovics Z, Docktor M, Dole M, Gisser JM, Goyal A, Hourigan SK, Jensen MK, Kaplan JL, Kellermayer R, Kelsen JR, Kennedy MA, Khanna S, Knackstedt ED, Lentine J, Lewis JD, Michail S, Mitchell PD, Oliva-Hemker M, Patton T, Queliza K, Sidhu S, Solomon AB, Suskind DL, Weatherly M, Werlin S, de Zoeten EF, Kahn SA. Efficacy and Outcomes of Faecal Microbiota Transplantation for Recurrent Clostridioides difficile Infection in Children with Inflammatory Bowel Disease. J Crohns Colitis 2022; 16:768-777. [PMID: 34788420 PMCID: PMC9228903 DOI: 10.1093/ecco-jcc/jjab202] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Children with inflammatory bowel disease [IBD] are disproportionally affected by recurrent Clostridioides difficile infection [rCDI]. Although faecal microbiota transplantation [FMT] has been used with good efficacy in adults with IBD, little is known about outcomes associated with FMT in paediatric IBD. METHODS We performed a retrospective review of FMT at 20 paediatric centres in the USA from March 2012 to March 2020. Children with and without IBD were compared with determined differences in the efficacy of FMT for rCDI. In addition, children with IBD with and without a successful outcome were compared with determined predictors of success. Safety data and IBD-specific outcomes were obtained. RESULTS A total of 396 paediatric patients, including 148 with IBD, were included. Children with IBD were no less likely to have a successful first FMT then the non-IBD affected cohort [76% vs 81%, p = 0.17]. Among children with IBD, patients were more likely to have a successful FMT if they received FMT with fresh stool [p = 0.03], were without diarrhoea prior to FMT [p = 0.03], or had a shorter time from rCDI diagnosis until FMT [p = 0.04]. Children with a failed FMT were more likely to have clinically active IBD post-FMT [p = 0.002] and 19 [13%] patients had an IBD-related hospitalisation in the 3-month follow-up. CONCLUSIONS Based on the findings from this large US multicentre cohort, the efficacy of FMT for the treatment of rCDI did not differ in children with IBD. Failed FMT among children with IBD was possibly related to the presence of clinically active IBD.
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Affiliation(s)
- Maribeth R Nicholson
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Erin Alexander
- Department of Pediatrics, Mayo Clinic, Rochester, MN, USA
| | - Sonia Ballal
- Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA
| | - Zev Davidovics
- Department of Pediatrics, Connecticut Children's Medical Center, Hartford, CT, USA
| | - Michael Docktor
- Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA
| | - Michael Dole
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jonathan M Gisser
- Department of Pediatrics, Nationwide Children's Hospital, Columbus, OH, USA
| | - Alka Goyal
- Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO, USA
| | - Suchitra K Hourigan
- Department of Pediatrics, Pediatric Specialists of Virginia, Fairfax, VA, USA
| | - M Kyle Jensen
- Department of Pediatrics, University of Utah Department of Pediatrics, Salt Lake City, UT, USA
| | - Jess L Kaplan
- Department of Pediatrics, MassGeneral Hospital for Children, Boston, MA, USA
| | - Richard Kellermayer
- Baylor College of Medicine, Texas Children's Hospital, USDA Children's Nutrition and Research Center, Houston, TX, USA
| | - Judith R Kelsen
- Department of Pediatrics, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Melissa A Kennedy
- Department of Pediatrics, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Sahil Khanna
- Department of Pediatrics, Mayo Clinic, Rochester, MN, USA
| | - Elizabeth D Knackstedt
- Department of Pediatrics, University of Utah Department of Pediatrics, Salt Lake City, UT, USA
| | - Jennifer Lentine
- Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - Jeffery D Lewis
- Children's Center for Digestive Healthcare at Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Sonia Michail
- Department of Pediatrics, University of Southern California Children's Hospital of Los Angeles, Los Angeles, CA, USA
| | - Paul D Mitchell
- Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA
| | - Maria Oliva-Hemker
- Johns Hopkins University School of Medicine, Johns Hopkins Children's Center, Baltimore, MD, USA
| | - Tiffany Patton
- Department of Pediatrics, University of Chicago, Comer Children's Hospital, Chicago, IL, USA
| | - Karen Queliza
- Baylor College of Medicine, Texas Children's Hospital, USDA Children's Nutrition and Research Center, Houston, TX, USA
| | - Sarah Sidhu
- Johns Hopkins University School of Medicine, Johns Hopkins Children's Center, Baltimore, MD, USA
| | - Aliza B Solomon
- Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - David L Suskind
- Department of Pediatrics, Seattle Children's Hospital and the University of Washington, Seattle, WA, USA
| | - Madison Weatherly
- Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA
| | - Steven Werlin
- Department of Pediatrics, Medical College of Wisconsin and Children's Wisconsin, Milwaukee, WI, USA
| | - Edwin F de Zoeten
- Department of Pediatrics, Children's Hospital Colorado, Aurora, CO, USA
| | - Stacy A Kahn
- Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA
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Adam J, Lefebvre AM, Nicolazzi C, Larois C, Attenot F, Falda-Buscaiot F, Dib C, Ternès N, Masson N, Bauchet AL, Demers B, Chadjaa M, Sidhu S, Combeau C, Soria JC, Scoazec JY, Naimi S, Angevin E, Chiron M, Henry C. 19P Therapeutic targets in non-small cell lung cancer: Preclinical and human studies of carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) expression and its associated molecular landscape. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.035] [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: 11/16/2022] Open
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4
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Dhesi GS, Sidhu S, Al-Haj Husain N, Özcan M. Evaluation of Adhesion Protocol for Titanium Base Abutments to Different Ceramic and Hybrid Materials. Eur J Prosthodont Restor Dent 2021; 29:22-34. [PMID: 32780569 DOI: 10.1922/ejprd_2073dhesi13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Scientific evidence regarding conditioning of different ceramic and hybrid materials and their bonding on titanium abutments is lacking. Titanium disks (Tritan) (N=450, n=15) were randomly cemented onto five different ceramic and hybrid materials, namely 1. Zenostar T, 2. Lava Ultimate, 3. IPS e.max CAD, 4. Vita Enamic multicolor and 5. G-ceram using three different cements, Panavia 21, TheraCem and Multilink hybrid abutment. Half of all specimens were thermocycled (5000 cycles, 5-55°C), while the other half were kept dry. Macro shear bond testing was conducted using a universal testing machine. Failure types were classified using a digital microscope. Data was statistically analyzed with three-way ANOVA and Tukey HSD post hoc tests. Both the ceramic (P⟨0.0001) and cement type(P⟨0.0001) significantly affected the shear bond strength(MPa), while thermocycling did not (P⟩0.05). The incidence of cohesive (50.34%) and adhesive failures (49.66%) were not significantly different. As for implant superstructures, when ceramics are bonded to titanium bases, the ceramic and cement type both have an impact on the bond strengths along with the conditioning and bonding protocols for each substrate. An equal affinity of the cements tested to the ceramic, hybrid materials and to titanium can be assumed. Combination of zirconia and TheraCem can be recommended for clinical use.
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Affiliation(s)
- G S Dhesi
- Queen Mary University of London, London, United Kingdom
| | - S Sidhu
- Queen Mary University of London, London, United Kingdom
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5
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Thimm MA, Cuffari C, Garcia A, Sidhu S, Hwang M. Contrast-Enhanced Ultrasound and Shear Wave Elastography Evaluation of Crohn's Disease Activity in Three Adolescent Patients. Pediatr Gastroenterol Hepatol Nutr 2019; 22:282-290. [PMID: 31110961 PMCID: PMC6506424 DOI: 10.5223/pghn.2019.22.3.282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/01/2018] [Accepted: 07/13/2018] [Indexed: 12/27/2022] Open
Abstract
Characterizing inflammation and fibrosis in Crohn's disease (CD) is necessary to guide clinical management, but distinguishing the two remains challenging. Novel ultrasound (US) techniques: contrast-enhanced US (CEUS) and shear wave elastography (SWE) offer great potential in evaluating disease activity in pediatric patients. Three patients ages 16 to 20 with known CD underwent CEUS and SWE to characterize bowel wall inflammation and fibrosis. Magnetic resonance enterography, endoscopy, or surgical pathology findings are also described when available. The patients' disease activity included acute inflammation, chronic inflammation with stricture formation, and a fibrotic surgical anastomosis without inflammation. CEUS was useful in determining the degree of inflammation, and SWE identified bowel wall fibrosis. Used together these techniques allow for better characterization of the degree of fibrosis and inflammation in bowel strictures. With further validation CEUS and SWE may allow for improved characterization of bowel strictures and disease flares in pediatric patients suffering from CD.
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Affiliation(s)
- Matthew A Thimm
- The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Carmen Cuffari
- Division of Pediatric Gastroenterology, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Alejandro Garcia
- Division of Pediatric Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Sarah Sidhu
- Division of Pediatric Gastroenterology, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Misun Hwang
- Department of Radiology, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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6
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Mathieu J, Detraux D, Kuppers D, Wang Y, Cavanaugh C, Sidhu S, Levy S, Robitaille AM, Ferreccio A, Bottorff T, McAlister A, Somasundaram L, Artoni F, Battle S, Hawkins RD, Moon RT, Ware CB, Paddison PJ, Ruohola-Baker H. Folliculin regulates mTORC1/2 and WNT pathways in early human pluripotency. Nat Commun 2019; 10:632. [PMID: 30733432 PMCID: PMC6367455 DOI: 10.1038/s41467-018-08020-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 12/05/2018] [Indexed: 01/05/2023] Open
Abstract
To reveal how cells exit human pluripotency, we designed a CRISPR-Cas9 screen exploiting the metabolic and epigenetic differences between naïve and primed pluripotent cells. We identify the tumor suppressor, Folliculin(FLCN) as a critical gene required for the exit from human pluripotency. Here we show that FLCN Knock-out (KO) hESCs maintain the naïve pluripotent state but cannot exit the state since the critical transcription factor TFE3 remains active in the nucleus. TFE3 targets up-regulated in FLCN KO exit assay are members of Wnt pathway and ESRRB. Treatment of FLCN KO hESC with a Wnt inhibitor, but not ESRRB/FLCN double mutant, rescues the cells, allowing the exit from the naïve state. Using co-immunoprecipitation and mass spectrometry analysis we identify unique FLCN binding partners. The interactions of FLCN with components of the mTOR pathway (mTORC1 and mTORC2) reveal a mechanism of FLCN function during exit from naïve pluripotency. The pathways involved in exit from pluripotency in human embryonic stem cells are poorly understood. Here, the authors performed a CRISPR-based screen to identify genes that promote exit from naïve pluripotency and find a role for folliculin (FLCN) by regulating the mTOR and Wnt pathways.
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Affiliation(s)
- J Mathieu
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Department of Comparative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - D Detraux
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Laboratory of Cellular Biochemistry and Biology (URBC), University of Namur, Namur, 5000, Belgium
| | - D Kuppers
- Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Y Wang
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Paul G. Allen School of Computer Science & Engineering, University of Washington, Seattle, WA, 98109, USA
| | - C Cavanaugh
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Department of Comparative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - S Sidhu
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - S Levy
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - A M Robitaille
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Department of Pharmacology, University of Washington, Seattle, WA, 98195, USA
| | - A Ferreccio
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - T Bottorff
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - A McAlister
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - L Somasundaram
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - F Artoni
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - S Battle
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Department of Medical Genetics & Genome Sciences, University of Washington, Seattle, WA, 98195, USA
| | - R D Hawkins
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Department of Medical Genetics & Genome Sciences, University of Washington, Seattle, WA, 98195, USA
| | - R T Moon
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Department of Pharmacology, University of Washington, Seattle, WA, 98195, USA
| | - C B Ware
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.,Department of Comparative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - P J Paddison
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA. .,Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
| | - H Ruohola-Baker
- Department of Biochemistry, University of Washington, Seattle, WA, 98195, USA. .,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.
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7
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Gadd K, Kwok T, Sidhu S, Robertson I. Comparison of two transverse airway ultrasonography techniques for speed and accuracy to localise the cricothyroid membrane in obese female volunteers. Br J Anaesth 2019; 122:e28-e31. [PMID: 30686324 DOI: 10.1016/j.bja.2018.11.008] [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] [Received: 09/03/2018] [Revised: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 10/27/2022] Open
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Affiliation(s)
- S. Sidhu
- Department of Human Genetics, Guru Nanak Dev University , Amritsar, Punjab, India
| | - K. Kumari
- Department of Physiology, Govt. Medical College , Amritsar, Punjab, India
| | - Prabhjot Kumari
- Department of Human Genetics, Guru Nanak Dev University , Amritsar, Punjab, India
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Affiliation(s)
- M. Uppal
- Department of Human Genetics, Guru Nanak Dev University , Amritsar, Punjab, India
| | - K. Kumari
- Department of Physiology, Govt. Medical College , Amritsar, Punjab, India
| | - S. Sidhu
- Department of Human Genetics, Guru Nanak Dev University , Amritsar, Punjab, India
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Sidhu SS, Agarwal S, Goyal O, Kishore H, Sidhu S. Sorafenib induced hepatic encephalopathy. Acta Gastroenterol Belg 2017; 80:537-538. [PMID: 29560652] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A 60 year old male, known case of Hepatitis C related cirrhosis was diagnosed with exophytic Hepatocellular carcinoma (size 2.1 x 2.2 cm), Barcelona Clinic Liver Cancer Stage A, on routine surveillance. He refused liver Transplant and underwent laparoscopic segmental resection. Thereafter patient was started on Tablet Sorafenib 400mg twice daily to prevent recurrence of Hepatocellular carcinoma. On 18st post-operative day, patient presented with Hepatic encephalopathy. Routine investigations and MRI Brain were normal; Venous ammonia was high. Sorafenib was discontinued, and neurological symptoms resolved within 24 hours. The ammonia level decreased from 112 to 30 μmol/L. Hepatic encephalopathy recurred 14 days after Sorafenib reintroduction at a dose of 400 mg / day. It resolved within 24 hours of withdrawal of Sorafenib. Sorafenib induced recurrent acute overt Hepatic encephalopathy with biochemical corroboration is reported here.
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Affiliation(s)
- S S Sidhu
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - S Agarwal
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - O Goyal
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - H Kishore
- Department of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - S Sidhu
- Himalayan institute of Medical Sciences, Swami Rama Himalayan University, Doiwala, Dehradun, Uttarkhand, India
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Lim H, Pee S, Yap Y, Sidhu S, Eng C, Lee M, Wanjazilah W, Liaw L, Khairulfaizah M, Yap S, Anisuraya G. 038 EPIDEMIOLOGY & OUTCOME OF ACUTE KIDNEY INJURY IN PAEDIATRIC PATIENTS TREATED WITH RENAL REPLACEMENT THERAPY IN MALAYSIA - A 7 YEARS MULTI-CENTRE REVIEW. Kidney Int Rep 2017. [DOI: 10.1016/j.ekir.2017.06.026] [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: 11/28/2022] Open
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12
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Lim H, Pee S, Yap Y, Sidhu S, Eng C, Lee M, Wanjazilah W, Liaw L, Khairulfaizah M, Anisuraya G. 061 PERITONEAL DIALYSIS FIRST IN SEVERE ACUTE KIDNEY INJURY IN CHILDREN. Kidney Int Rep 2017. [DOI: 10.1016/j.ekir.2017.06.033] [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: 10/19/2022] Open
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13
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Rejjal L, Aldibasi O, Sidhu S, Ware S, Canales K, Vasquez R, Dumas-Hicks D, Desai S, Ventura H, Krim S. Use of Gene Expression Profiling Score Variability to Predict Cardiac Allograft Vasculopathy: A Single Center Experience. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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14
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Chong H, Yang G, Sidhu S, Ibbetson J, Kopecki Z, Cowin A. Reducing Flightless I expression decreases severity of psoriasis in an imiquimod-induced murine model of psoriasiform dermatitis. Br J Dermatol 2016; 176:705-712. [DOI: 10.1111/bjd.14842] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2016] [Indexed: 11/29/2022]
Affiliation(s)
- H.T. Chong
- Regenerative Medicine; Future Industries Institute; University of South Australia; Adelaide South Australia Australia
- School of Paediatrics and Reproductive Health; University of Adelaide; Adelaide South Australia Australia
| | - G.N. Yang
- Regenerative Medicine; Future Industries Institute; University of South Australia; Adelaide South Australia Australia
| | - S. Sidhu
- Department of Dermatology; Royal Adelaide Hospital; Adelaide South Australia Australia
| | - J. Ibbetson
- Surgical Pathology Division; South Australia Pathology; Adelaide South Australia Australia
| | - Z. Kopecki
- Regenerative Medicine; Future Industries Institute; University of South Australia; Adelaide South Australia Australia
- School of Paediatrics and Reproductive Health; University of Adelaide; Adelaide South Australia Australia
| | - A.J. Cowin
- Regenerative Medicine; Future Industries Institute; University of South Australia; Adelaide South Australia Australia
- School of Paediatrics and Reproductive Health; University of Adelaide; Adelaide South Australia Australia
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Kashani S, Ito T, Guggenheim A, Sanko S, Sidhu S, Balagna J, Green J, Wong C, Eckstein M. 88 Implementation of a Nurse Practitioner Response Unit in an Urban EMS System. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Clarke S, Sidhu S, Pavlakis N, Brahmbhatt H, Macdiarmid J. The Tailored EDVTM trial: A phase I feasibility study evaluating EGFR-targeted EDVTM nanocells as a therapy platform in patients with refractory advanced solid tumours. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw368.55] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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17
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Fraser S, Go C, Aniss A, Sidhu S, Delbridge L, Learoyd D, Clifton-Bligh R, Tacon L, Tsang V, Robinson B, Gill AJ, Sywak M. BRAFV600E Mutation is Associated with Decreased Disease-Free Survival in Papillary Thyroid Cancer. World J Surg 2016; 40:1618-24. [DOI: 10.1007/s00268-016-3534-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [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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18
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Hoeppli M, Thurston T, Sidhu S, Mangum T, Weavil J, Hureau T, Tang W, Hughen R, Light A, Amann M, Schweinhardt P. (352) Differences in psychophysical responses to muscle stimulation in young and old healthy adults. The Journal of Pain 2016. [DOI: 10.1016/j.jpain.2016.01.259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
AIM To assess the quality of radiographs accompanying endodontic referrals, from general dental practitioners, to a health authority clinic. METHODS A total of 200 conventional film and digital radiographs accompanying referrals were assessed and rated as 'excellent', 'diagnostically acceptable' or 'unacceptable' according to the National Radiographic Protection Board (NRPB) guidelines. Statistical analyses of the results included inter- and intra-observer agreement to achieve a kappa score and the chi-squared test. RESULTS Out of the 200 radiographs assessed, 38 (19%) were conventional film and 162 (81%) were digital. Of the conventional film radiographs, 55% were rated 'excellent' and 37% were 'diagnostically acceptable', whilst 27% of digital radiographs were rated 'excellent' and 40% were 'diagnostically acceptable'. In the 'unacceptable' category, 33% were digital and 8% were conventional film radiographs (p <0.001). CONCLUSIONS The quality of digital radiographs was significantly lower compared with conventional film radiographs. The percentage of 'unacceptable' digital radiographs was above the target according to the NRPB guidelines. Hence, there is a need for improvement in quality to avoid repeat radiographs and unnecessary ionising radiation exposure. Instead of hard, printed copies, digital radiographs accompanying referrals should, within the parameters of information governance, be supplied electronically so that they may be optimised, if necessary, for better diagnostic value.
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Affiliation(s)
- B S Chong
- Adult Oral Health, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Turner Street, London, E1 2AD
| | - J Miller
- Adult Oral Health, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Turner Street, London, E1 2AD
| | - S Sidhu
- Adult Oral Health, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Turner Street, London, E1 2AD
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Britton EJ, Sidhu S, Geraghty J, Psarelli E, Sarkar S. The 5-year outcome of patients having incomplete colonoscopy. Colorectal Dis 2015; 17:298-303. [PMID: 25605376 DOI: 10.1111/codi.12901] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 09/06/2014] [Indexed: 12/16/2022]
Abstract
AIM Incomplete colonoscopy indicated for the detection of neoplasia occurs in 2-23% of patients, but there is little information on the long-term outcome of such patients. METHOD All patients who underwent colonoscopy over 5 years at the Royal Liverpool University Hospital with a follow-up of up to 5 years were identified. RESULTS The risk of colorectal cancer (CRC) was 2.9% (312/10 580) for all patients undergoing colonoscopy. For a failed colonoscopy, the risk was five-fold higher [14.3% (99/693)]. The mean age of the patients was 61 years and 58% were female. Following incomplete colonoscopy the risk of finding additional CRC, advanced colonic neoplasia and extracolonic neoplasia on subsequent investigation was 6.2%, 3.2% and 1.9%. The diagnostic yield on subsequent investigation for CRC or colonic polyps was 7% for repeat colonoscopy, 13.4% for computed tomography colonography, 10.3% for standard computed tomography and 1.8% for barium enema. In the 363 patients who were not offered a subsequent investigation, there was no further instance of CRC or CRC-related mortality over a 36-month period. CONCLUSION Although the risk of CRC is higher in patients who have had a failed colonoscopy, a protocol approach of subsequent investigation should not replace clinical assessment on whether another test is necessary in the light of the good outcome of patients who were not subsequently investigated.
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Affiliation(s)
- E J Britton
- Department of Gastroenterology and Hepatology, Royal Liverpool University Hospital, Liverpool, UK
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Al Bukhary R, Wassell R, Sidhu S, Al Naimi O, Meechan J. The local anaesthetic effect of a dental laser prior to cavity preparation: a pilot volunteer study. Oper Dent 2014; 40:129-33. [PMID: 25216939 DOI: 10.2341/13-101-c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES It has been suggested that laser preconditioning can produce dental anaesthesia. This study aimed to assess the response of the dental pulp to laser preconditioning. METHODS The effects of laser preconditioning, sham laser (negative control), and composite curing light (positive control) on the response of the dental pulp to electric pulp testing was investigated in this double-blind crossover trial with six volunteers. The Er,Cr:YSGG laser or curing light was shone on a premolar tooth in a sweeping motion for 30 seconds (in the sham treatment, the laser was not activated) in blindfolded volunteers subjected to a consistent aural stimulus. Treatment method at each visit was randomized and performed by a researcher not involved in pulp testing. Teeth were pulp tested twice initially by another member of the research team to get baseline readings, immediately following the treatment, and thereafter every two minutes for 10 minutes. Results were analyzed using analysis of variance and an independent-sample t-test. RESULTS There were no significant differences in pulpal response between treatments (p>0.05). CONCLUSION Laser preconditioning did not affect pulpal response as measured by an electronic pulp tester. Laser preconditioning did not result in any pain or noticeable symptoms for both teeth and soft tissues.
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Allan P, Nixon E, Sidhu S, Teubner A, Abraham A, Carlson G, Lal S. PP152-SUN: Development and Outcome of Intestinal Failure in Crohn’s Disease: 3 Decades of Experience. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50194-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Norlén O, Sidhu S, Sywak M, Delbridge L. Long-term outcome after parathyroidectomy for lithium-induced hyperparathyroidism. Br J Surg 2014; 101:1252-6. [PMID: 25043401 DOI: 10.1002/bjs.9589] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 03/27/2014] [Accepted: 05/09/2014] [Indexed: 11/06/2022]
Abstract
BACKGROUND The accepted management of lithium-associated hyperparathyroidism (LiHPT) is open four-gland parathyroid exploration (OPTX). This approach has recently been the subject of controversy. A recent study has shown very high long-term recurrence rates after OPTX, whereas some have promoted unilateral focused parathyroidectomy as appropriate management. The aim was to evaluate long-term outcomes after surgery for LiHPT and to assess the accuracy of preoperative imaging. METHODS This was a retrospective cohort study that comprised all patients undergoing initial surgery for LiHPT between 1990 and 2013. The cumulative recurrence rate was calculated by the Kaplan-Meier method. The sensitivity and specificity of sestamibi scintigraphy and ultrasound imaging for identification of single-gland versus multigland disease was investigated using intraoperative assessment as reference. RESULTS Of 48 patients, 45 had OPTX and three underwent focused parathyroidectomy. Multiglandular disease was documented in 27 patients and 21 had a single adenoma. The median follow-up was 5·9 (range 0·3-22) years and 16 patients died during follow-up. The 10-year cumulative recurrence rate was 16 (95 per cent confidence interval 2 to 29) per cent. No permanent complications occurred after primary surgery for LiHPT. Twenty-four patients had at least one preoperative ultrasound or sestamibi scan. For concordant sestamibi scintigraphy and ultrasound imaging, the sensitivity and specificity for identifying single-gland versus multigland disease was five of nine and five of eight respectively. CONCLUSION Surgery provided a safe and effective management option for patients with LiHPT in this series, with a long-term cure rate of well over 80 per cent.
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Affiliation(s)
- O Norlén
- University of Sydney Endocrine Surgery Unit, Sydney, New South Wales, Australia; Department of Surgical Sciences, University of Uppsala, Uppsala, Sweden
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Tsang VHM, Dwight T, Benn DE, Meyer-Rochow GY, Gill AJ, Sywak M, Sidhu S, Veivers D, Sue CM, Robinson BG, Clifton-Bligh RJ, Parker NR. Overexpression of miR-210 is associated with SDH-related pheochromocytomas, paragangliomas, and gastrointestinal stromal tumours. Endocr Relat Cancer 2014; 21:415-26. [PMID: 24623741 DOI: 10.1530/erc-13-0519] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
miR-210 is a key regulator of response to hypoxia. Pheochromocytomas (PCs) and paragangliomas (PGLs) with germline SDHx or VHL mutations have pseudohypoxic gene expression signatures. We hypothesised that PC/PGLs containing SDHx or VHL mutations, and succinate dehydrogenase (SDH)-deficient gastrointestinal stromal tumours (GISTs), would overexpress miR-210 relative to non-SDH or -VHL-mutated counterparts. miR-210 was analysed by quantitative PCR in i) 39 PC/PGLs, according to genotype (one SDHA, five SDHB, seven VHL, three NF1, seven RET, 15 sporadic, one unknown) and pathology (18 benign, eight atypical, 11 malignant, two unknown); ii) 18 GISTs, according to SDHB immunoreactivity (nine SDH-deficient and nine SDH-proficient) and iii) two novel SDHB-mutant neurosphere cell lines. miR-210 was higher in SDHx- or VHL-mutated PC/PGLs (7.6-fold) compared with tumours without SDHx or VHL mutations (P=0.0016). miR-210 was higher in malignant than in unequivocally benign PC/PGLs (P=0.05), but significance was lost when benign and atypical tumours were combined (P=0.08). In multivariate analysis, elevated miR-210 was significantly associated with SDHx or VHL mutation, but not with malignancy. In GISTs, miR-210 was higher in SDH-deficient (median 2.58) compared with SDH-proficient tumours (median 0.60; P=0.0078). miR-210 was higher in patient-derived neurosphere cell lines containing SDHB mutations (6.5-fold increase) compared with normal controls, in normoxic conditions (P<0.01). Furthermore, siRNA-knockdown of SDHB in HEK293 cells increased miR-210 by 2.7-fold (P=0.001) under normoxia. Overall, our results suggest that SDH deficiency in PC, PGL and GISTs induces miR-210 expression and substantiates the role of aberrant hypoxic-type cellular responses in the development of these tumours.
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Affiliation(s)
- V H M Tsang
- Cancer Genetics Laboratory, Kolling Institute of Medical Research Department of Endocrinology, Royal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia Department of Surgery, Faculty of Medical and Health Sciences, Waikato Clinical School, University of Auckland, Auckland 1142, New Zealand Department of Anatomical Pathology, Cancer Diagnosis and Oncology Group, Kolling Institute of Medical Research Department of Endocrine and Oncology Surgery, Neurogenetics Research Laboratory, Kolling Institute of Medical Research Department of ENT Surgery, Department of Neurology Bill Walsh Translational Cancer Research Laboratory, Kolling Institute of Medical Research, Royal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia
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Manlhiot C, Stenyk L, Sidhu S, McCrindle B. 435 Evidence of Seasonality in Births of Patients With Congenital Heart Disease Who Require Subsequent Surgical Repair. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.408] [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: 10/27/2022] Open
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Collins J, Sidhu S, Katugampola R. Assoc Med J 2012; 344:e2693-e2693. [DOI: 10.1136/bmj.e2693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sidhu S, Katugampola R. . West J Med 2011; 343:d7877-d7877. [DOI: 10.1136/bmj.d7877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
BACKGROUND The ratio of benign moles excised for each malignant melanoma (MM) diagnosed, i.e. the number needed to treat (NNT), may be a useful indicator of diagnostic accuracy and the efficient use of healthcare resources, and may have personal implications for the patient. AIM To assess the NNT for a group of consultant dermatologists serving a population of 600,000, and to compare this with similar studies from other countries. METHODS This was a retrospective analysis of data on pigmented lesions excised over a 5-year period (2005-2009). The lesions were divided into three groups: benign naevi (BN), dysplastic naevi (DN) and MM. The NNT ratio was calculated as (BN + DN + MM)/MM. RESULTS In total, 4691 lesions were examined. The overall mean NNT was 6.3, with a range of 4.9-11.3 for each of nine consultant dermatologists. The mean NNT was 7.6 for female and 4.8 for male patients. There were more patients with BN (n = 3534; 75%) than with DN (n = 407; 9%) or MM (n = 750; 16%). The gender representation was similar in the DN and MM groups, but had a disproportionately female bias in the BN group (67% female, 33% male patients). Overall, there were more female patients in all three groups [2962 female patients (63%) and 1729 male patients (37%)]. CONCLUSIONS The NNT of 6.3 in this study compares favourably with NNT ratios from studies of dermatologists from other countries. This study may encourage other countries and individual doctors to assess their NNT ratios, as it may be an important indicator of the efficient use of resources and the avoidance of unnecessary surgery for patients.
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Affiliation(s)
- S Sidhu
- The Welsh Institute of Dermatology, University Hospital of Wales, Cardiff, UK.
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Sidhu S, Falzon G, Hart SA, Fox JG, Lewis RA, Siu KKW. Classification of breast tissue using a laboratory system for small-angle x-ray scattering (SAXS). Phys Med Biol 2011; 56:6779-91. [DOI: 10.1088/0031-9155/56/21/002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Willis JR, Kumar V, Mohanty S, Kumar A, Singh JV, Ahuja RC, Misra RP, Singh P, Singh V, Baqui AH, Sidhu S, Santosham M, Darmstadt GL. Utilization and perceptions of neonatal healthcare providers in rural Uttar Pradesh, India. Int J Qual Health Care 2011; 23:487-94. [DOI: 10.1093/intqhc/mzr030] [Citation(s) in RCA: 4] [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: 11/12/2022] Open
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Hussein M, Sidhu S, Clark C, Adams E, Jordan T. 1433 poster CRITICAL EVALUATION BETWEEN THE PTW SEVEN29 2D ARRAY(tm) AND SCANDIDOS DELTA4(tm) FOR DYNAMIC IMRT AND RAPIDARC(tm) VERIFICATION. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71555-9] [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: 11/25/2022]
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Sidhu S, Morris AD. . West J Med 2011; 342:d1133-d1133. [DOI: 10.1136/bmj.d1133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Chang LY, Suliburk J, Sidhu S, Delbridge L, Sywak M. ES17�*RESULTS OF SUTURELESS TECHNIQUES VS CONVENTIONAL VESSEL LIGATION FOR TOTAL THYROIDECTOMY. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04916_17.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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O'neill CJ, Spence A, Logan B, Suliburk J, Sidhu S, Sywak M. ES05�ADRENAL INCIDENTALOMA: HISTOPATHOLOGICAL CORRELATION AND RISK OF MALIGNANCY. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04916_5.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Langusch CC, Suliburk JW, Sidhu S, Sywak M, Shun A, Delbridge L. ES12�*PRIMARY HYPERPARATHYROIDISM (PHPT) IN CHILDHOOD IS THE SAME DISEASE AS IN ADULTS. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04916_12.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abraham D, Messina M, Robinson B, Sidhu S. 177. Medullary Thyroid Cancer: Outcomes in the Era of Mutation Analysis. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.215] [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: 10/21/2022]
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Venkateshan S, Sidhu S, Malhotra S, Pandhi P. Efficacy of Biologicals in the Treatment of Rheumatoid Arthritis. Pharmacology 2009; 83:1-9. [DOI: 10.1159/000165777] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2007] [Accepted: 02/22/2008] [Indexed: 11/19/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic multisystem disease. A characteristic feature of RA is persistent inflammatory synovitis, usually involving the peripheral joints in a symmetric distribution. The prevalence of RA is approximately 0.8% of the population (range: 0.3–2.1%); women are affected approximately 3 times more often than men. The current therapeutic approach is to start a disease-modifying agent early in the illness to prevent eventual joint damage. Older disease-modifying anti-rheumatic drugs include methotrexate, sulphasalazine and hydroxychloroquine. Newer ones such as leflunomide and cyclosporin are also used. A recent advance in the management of rheumatoid arthritis is the use of biological agents, which block certain key molecules involved in the pathogenesis of the illness. They include tumour-necrosis-factor-α-blocking agents such as infliximab, etanercept and adalimumab, the anti-CD-20 agent, rituximab, and CTLA-4 Ig abatacept. The present study was planned with the aim of evaluating the efficacy of such newer biological therapies in refractory RA at various time points. Databases including Medline, Embase and the Cochrane Library were searched for all relevant studies up to January 2007. A total of 26 studies were included in present meta-analysis. The method of DerSimonian and Laird [Control Clin Trials 1986;7:177–188] was used to calculated a pooled odds ratio (OR) for the American College of Rheumatology (ACR) criteria 20, 50 and 70, at 24, 54 and 96 weeks. The overall pooled OR were found to be significantly more than the placebo at all 3 time points for all 3 criteria (ACR 20, 50 70). In conclusion, biologicals as a group are highly effective in the treatment of RA. Biologicals were efficacious both in treatment naïve and methotrexate-refractory patients.
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Manifold R, Reid C, O'Brien V, Sidhu S, Ibbetson J. Cutaneous Rosai-Dorfman disease. Australas J Dermatol 2007. [DOI: 10.1111/j.1440-0960.2007.00408_2.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Grodski S, Lundgren C, Sywak M, Sidhu S, Delbridge L. ES17P IPTH FACILITATES DAY 1 DISCHARGE AFTER TOTAL THYROIDECTOMY: THE FIRST 50 CASES. ANZ J Surg 2007. [DOI: 10.1111/j.1445-2197.2007.04118_17.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Grodski S, Brown T, Gill A, Sywak M, Sidhu S, Delbridge L. ES11 INCREASING INCIDENCE OF THYROID CANCER IN RETROSTERNAL GOITRE. ANZ J Surg 2007. [DOI: 10.1111/j.1445-2197.2007.04118_11.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pang T, Sidhu S, Sywak M, Reeve T, Delbridge L, Ihre-Lundgren C. ES15P ATYPICAL FOLLICULAR? FNAC ? RELATIONSHIP WITH FINAL HISTOPATHOLOGY. ANZ J Surg 2007. [DOI: 10.1111/j.1445-2197.2007.04118_15.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Isaacs JD, Ihre-Lundgren C, Sidhu S, Sywak M, Edhouse P, Delbridge L. ES03 THE DELPHIC LYMPH NODE AND THYROID CANCER. ANZ J Surg 2007. [DOI: 10.1111/j.1445-2197.2007.04118_3.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Pang T, Stalberg P, Sidhu S, Sywak M, Wilkinson M, Reeve TS, Delbridge L. Minimally invasive parathyroidectomy using the lateral focused mini-incision technique without intraoperative parathyroid hormone monitoring. Br J Surg 2007; 94:315-9. [PMID: 17205496 DOI: 10.1002/bjs.5608] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Minimally invasive parathyroidectomy (MIP) involves scan-directed removal of a single adenoma through a 2.0-cm mini-incision without intraoperative monitoring. The aim of this study was to analyse the outcomes of MIP using such a simplified technique. METHODS The study group comprised 500 consecutive patients undergoing MIP via a lateral mini-incision from August 2000 to September 2005. Levels of parathyroid hormone (PTH) were measured after operation solely to aid informed discharge. RESULTS Some 97.4 per cent of patients were initially cured by MIP. Eight patients remained hypercalcaemic and a further five were normocalcaemic on the day after surgery but became hypercalcaemic again within 3 months of the procedure. Eleven of these patients were cured with subsequent re-exploration. Analysis of postoperative PTH data indicated that, at best, the use of intraoperative PTH measurement during surgery would have increased the cure rate by only a further 1 per cent. Three (0.6 per cent) of 500 patients had permanent recurrent laryngeal nerve palsy after MIP. CONCLUSION MIP performed by the lateral focused mini-incision technique, without the use of intraoperative PTH monitoring, is a safe and effective procedure that results in outcomes equal to those of bilateral neck exploration.
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Affiliation(s)
- T Pang
- University of Sydney Endocrine Surgical Unit, Royal North Shore Hospital, Sydney, New South Wales, Australia
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Sidhu S, Shafiq N, Malhotra S, Pandhi P, Grover A. A meta-analysis of trials comparing Cypher and Taxus stents in patients with obstructive coronary artery disease. Br J Clin Pharmacol 2007; 61:720-6. [PMID: 16722835 PMCID: PMC1885118 DOI: 10.1111/j.1365-2125.2006.02614.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
AIMS Drug-eluting stents have been shown to be superior to bare metal stents in reducing restenosis rates. Recently head-to-head trials comparing sirolimus-eluting stents and paclitaxel-eluting stents have been reported. An early combined analysis of these comparative trials is needed. The present meta-analysis was carried out to compare the effects of sirolimus-eluting stents with paclitaxel-eluting stents on the restenosis rate, major adverse cardiac events and late loss of arterial lumen diameter in patients with obstructive coronary artery disease. METHODS Electronic (Medline, Cochrane and Embase) and manual search (Index Medicus and cross references of retrieved articles) were carried out for all the relevant articles up till March 2005. Only randomized trials with adequate data for calculation of odds ratio for restenosis rates and major adverse cardiac events using the method of DerSimonian & Laird and standardized mean difference for late loss of arterial lumen diameter were included. RESULTS Four studies were found to be eligible for inclusion in the meta-analysis. Restenosis rate and late loss of arterial lumen diameter were significantly reduced by sirolimus-eluting stents as compared with paclitaxel-eluting stents (OR 0.598, 95% CI 0.400, 0.893, pooled mean difference -0.414, 95% CI -0.492, 0.336, respectively). The incidence of major adverse cardiac events was less with sirolimus-eluting stents as compared with paclitaxel-eluting stents (OR 0.727, 95% CI 0.518-1.018) but the results were not statistically significant. CONCLUSIONS Sirolimus-eluting stents are superior to paclitaxel-eluting stents in decreasing restenosis rate and late loss of arterial lumen diameter. However, no statistically significant difference in major adverse cardiac events was noted between the two stents.
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Affiliation(s)
- S Sidhu
- Department of Pharmacology, PGIMER, Chandigarh, India
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Abstract
Valuable advice for thyroid surgeons
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Affiliation(s)
- J E Gosnell
- University of Sydney Endocrine Surgical Unit, Royal North Shore Hospital, Sydney, New South Wales, Australia
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Sidhu S, Martin E, Gicquel C, Melki J, Clark SJ, Campbell P, Magarey CJ, Schulte KM, Röher HD, Delbridge L, Robinson BG. Mutation and methylation analysis of TP53 in adrenal carcinogenesis. Eur J Surg Oncol 2005; 31:549-54. [PMID: 15922892 DOI: 10.1016/j.ejso.2005.01.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2004] [Revised: 01/25/2005] [Accepted: 01/25/2005] [Indexed: 12/31/2022] Open
Abstract
AIM To investigate the role of coding region mutation and promoter hypermethylation of TP53 in adrenocortical cancer formation. METHODS Twenty sporadic adrenocortical cancers (ACCs) and five normal adrenal tissue samples were available for analysis. Coding region mutation of TP53 in 20 ACCs was examined by polymerase chain amplification using intronic primers for exons 2-11 and direct sequencing of the product. In 10 ACCs and five normal adrenal tissue specimens, methylation of the 16 CpG sites within the TP53 promoter was examined using bisulphite methylation sequencing. RESULTS Coding region mutation in TP53 was demonstrated in 5 of 20 ACCs. There were four mis-sense mutations and one frameshift mutation. Four of 5 patients with a TP53 mutation had metastases at diagnosis or detected soon thereafter and 3 of 4 died of disease within 12 months of surgical resection. No methylation was seen in the TP53 promoter in 10 ACC and the five normal adrenal tissues examined. CONCLUSION Coding region mutation in TP53 occurs in 25% of ACCs with a trend toward a poorer prognosis. Promoter methylation of TP53 is not present in ACC as a mechanism for tumour suppressor gene (TSG) inactivation and, therefore, other genes in the 17p13 region are implicated in adrenal carcinogenesis.
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Affiliation(s)
- S Sidhu
- Cancer Genetics, Kolling Institute of Medical Research, Royal North Shore Hospital, St Leonards, NSW 2065, Australia.
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Sidhu S, Sidhu N, Lapointe C, Gryschuk G. SU-FF-J-31: The Clinical Implications of Dynamic Therapies. Med Phys 2005. [DOI: 10.1118/1.1997577] [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: 11/07/2022] Open
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Abstract
The study was carried out to evaluate the effect of butter on the pharmacokinetics of phenytoin and carbamazepine. In a crossover study, phenytoin 30 mg/kg and carbamazepine 56 mg/kg were given orally to New Zealand white rabbits (n = 8 for each drug). Blood samples were drawn at different time intervals from 0-24 h from the marginal ear vein after drug administration. After a washout period of 7 days, butter (5 mg/kg) was administered for 7 days to the animals. On the 8th day, butter and phenytoin or carbamazepine were administered simultaneously and the blood samples were withdrawn at the same time points. Plasma was separated and stored at -20 degrees C until assayed for phenytoin and carbamazepine by HPLC and different pharmacokinetic parameters were calculated. Butter increased the absorption of both phenytoin and carbamazepine, as there was a significant increase in the Cmax and AUC(0-alpha) of both drugs after butter administration. No significant difference in Tmax was observed. In this study, it was found that a high fat diet increases the bioavailability of phenytoin and carbamazepine in New Zealand white rabbits.
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Affiliation(s)
- S Sidhu
- Department of Pharmacology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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