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Abstract
The use of fillers for nonsurgical rhinoplasty has advanced in both materials and methods, and continues to gain popularity in North America. This technique is most often used for secondary revisions, although reports of fillers used in primary rhinoplasty in selected patients have been recently described. The present report details the use of a hyaluronic acid dermal filler in a young Middle Eastern man for a post-traumatic crooked nose deformity. Primary correction of the patient's right-sided nasal bone deviation using hyaluronic acid as a soft tissue filler was achieved with excellent results and patient satisfaction. The current use of fillers in nasal contouring is reviewed.
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Affiliation(s)
- J R Piggott
- Victoria Hospital, London Health Sciences Centre, London, Ontario
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2
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Piggott JR, Yazdani A. Hyaluronic acid used for the correction of nasal deviation in an 18-year-old Middle Eastern man. Plast Surg (Oakv) 2011. [DOI: 10.4172/plastic-surgery.1000711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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3
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Piggott JR, Yazdani A. Bilateral Pulmonary Emboli After Bilateral Mastectomy in a 15-Year-Old Boy with Hypogonadism: A Case Report. Canadian Journal of Plastic Surgery 2010. [DOI: 10.1177/229255031001800404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Pulmonary emboli are rare, yet serious, complications of body contouring surgery. When they occur, they more often follow as complications of long, invasive procedures in adults. The present report details a case of bilateral pulmonary emboli in an obese 15-year-old boy with hypogonadism undergoing bilateral mastectomy for gynecomastia. The diagnosis of bilateral pulmonary emboli was made on the basis of clinical presentation and positive ventilation/perfusion scan. The patient responded well to heparin anticoagulation treatment. The relevance of pediatric obesity, pediatric body contouring surgery and the risk of thromboembolic events in pediatric patients are discussed.
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Affiliation(s)
- JR Piggott
- Victoria Hospital, London Health Sciences Centre, London, Ontario
| | - Arjang Yazdani
- Victoria Hospital, London Health Sciences Centre, London, Ontario
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4
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Piggott JR, Yazdani A. Bilateral pulmonary emboli after bilateral mastectomy in a 15-year-old boy with hypogonadism: A case report. Can J Plast Surg 2010; 18:e50-e52. [PMID: 22131848 PMCID: PMC3006119] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Pulmonary emboli are rare, yet serious, complications of body contouring surgery. When they occur, they more often follow as complications of long, invasive procedures in adults. The present report details a case of bilateral pulmonary emboli in an obese 15-year-old boy with hypogonadism undergoing bilateral mastectomy for gynecomastia. The diagnosis of bilateral pulmonary emboli was made on the basis of clinical presentation and positive ventilation/perfusion scan. The patient responded well to heparin anticoagulation treatment. The relevance of pediatric obesity, pediatric body contouring surgery and the risk of thromboembolic events in pediatric patients are discussed.
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Affiliation(s)
| | - Arjang Yazdani
- Correspondence: Dr Arjang Yazdani, Victoria Hospital, London Health Sciences Centre, 800 Commissioners Road East, Room E2-214, PO Box 5010, London, Ontario N6A 5W9. Telephone 519-685-8320, fax 519-695-8322, e-mail
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5
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Piggott JR, Yazdani A. Bilateral pulmonary emboli after bilateral mastectomy in a 15-year-old boy with hypogonadism: A case report. Plast Surg (Oakv) 2010. [DOI: 10.4172/plastic-surgery.1000662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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6
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Piggott JR. Handbook of Flavor Characterization. INT J DAIRY TECHNOL 2006. [DOI: 10.1111/j.1471-0307.2006.00192.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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7
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Piggott JR. Shackleton's men: life on Elephant Island. Endeavour 2004; 28:114-119. [PMID: 15350763 DOI: 10.1016/j.endeavour.2004.07.009] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The experiences of the 22 men from Ernest Shackleton's Endurance expedition of 1914-1916 who were marooned on Elephant Island during the Antarctic winter are not as well known as the narrative of the ship being beset and sunk, and Shackleton's open boat journey to South Georgia to rescue them. Frank Wild was left in charge of the marooned men by Shackleton and saved them from starvation and despair. The morale of the men in the face of extreme exposure to the elements, the ingenuity of their devices for survival and their diet, conversation and entertainments all reveal heroic qualities of Shackletonian endurance.
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8
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Abstract
The flavour of a food or beverage is not perceived in a single event, but rather as a series of events experienced as the food is consumed. Recent methods in flavour research have taken account of this, and techniques have been developed to study flavour release in model systems (release cells or simulated mouths) and from the mouth or nose of assessors, while consuming foods. However, while there is agreement on the need in some cases for hydration or artificial saliva in simulated mouths, other parameters must be optimised on a case-by-case basis. Individual variability may still be a problem in breath analysis, and further work is required to determine the extent to which there are real differences in volatile profiles. The techniques of release cells and breath analysis must now be applied to provide data, which will allow flavour release to be modelled.
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Affiliation(s)
- J R Piggott
- Department of Bioscience and Biotechnology, University of Strathclyde, 204 George Street, G1 1XW, Glasgow, UK
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9
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Hawkins PT, Stephens LR, Piggott JR. Analysis of inositol metabolites produced by Saccharomyces cerevisiae in response to glucose stimulation. J Biol Chem 1993; 268:3374-83. [PMID: 8429013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
When cultures of Saccharomyces cerevisiae are grown to stationary phase in medium containing [3H] inositol, significant amounts of radioactivity can be detected in phosphatidylinositol, phosphatidylinositol 3-phosphate, phosphatidylinositol 4-phosphate, and phosphatidylinositol 4,5-bisphosphate. Addition of glucose to such cultures results in the generation of [3H]glycerophosphoinositol, [3H]glycerophosphoinositol 4-phosphate, and [3H]glycerophosphoinositol 4,5-bisphosphate in the extracellular medium. We found no evidence, however, for the stimulated formation of other inositol polyphosphates. This result suggests that glucose does not stimulate the "phospholipase C" signalling pathway established in higher eukaryotic cells but, in contrast, stimulates specific phospholipases A or B. A variety of cell division cycle (cdc) mutants have been studied to investigate the relationship between cell cycle progression and inositol metabolism in S. cerevisiae. Mutants which are defective for completion of cell cycle "START" (i.e. commitment to mitosis) show reduced formation of glycerophosphoinositol 4-phosphate and glycerophosphoinositol 4,5-bisphosphate in response to glucose. In contrast, cdc mutants which are defective in post-"START" processes show a larger glucose response than wild type cells. These results suggest that deacylation of phosphatidylinositol 4-phosphate and phosphatidylinositol 4,5-bisphosphate may be coordinated with cell cycle control in S. cerevisiae.
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Affiliation(s)
- P T Hawkins
- Smith Kline Beecham, Welwyn, Herts, United Kingdom
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10
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Cook EA, Groenewegen WA, Gloger IS, Piggott JR, Suckling KE, Wolf CR. cDNA and deduced amino acid sequence of a novel cytochrome P-450 from female rat liver mRNA with high homology to P-450 IIC family. Nucleic Acids Res 1990; 18:7156. [PMID: 2263487 PMCID: PMC332802 DOI: 10.1093/nar/18.23.7156] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- E A Cook
- SmithKline Beecham Pharmaceuticals, Welwyn, Herts AL6, UK
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11
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Abstract
A synthetic phospholamban gene has been cloned and expressed in Escherichia coli, producing both native phospholamban and a fusion protein with 81 amino acids of the influenza virus NS1 protein. Both the native phospholamban and fusion proteins produced extensive cell lysis upon induction of gene expression, but only the native protein underwent spontaneous pentamer formation in E. coli. Translation in vitro of mRNA produced by transcription in vitro of phospholamban cDNA was used to demonstrate the spontaneous aggregation of phospholamban to form pentamers in this system also, both in the presence and absence of exogenous microsomes from canine pancreas or heart. Phospholamban produced by translation in vitro was apparently susceptible to proteolysis by enzymes present in the particulate fractions in these experiments.
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Affiliation(s)
- E A Cook
- Department of Cellular Pharmacology, Smith Kline and French Research Ltd., Welwyn, Herts., U.K
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12
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Huggins JP, Cook EA, Piggott JR, Mattinsley TJ, England PJ. Phospholamban is a good substrate for cyclic GMP-dependent protein kinase in vitro, but not in intact cardiac or smooth muscle. Biochem J 1989; 260:829-35. [PMID: 2764906 PMCID: PMC1138751 DOI: 10.1042/bj2600829] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.3] [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: 01/02/2023]
Abstract
1. Cyclic GMP-dependent protein kinase phosphorylates purified phospholamban. It also phosphorylates phospholamban present in vesicles of cardiac sarcoplasmic reticulum and smooth muscle microsomal fractions, and in transformants of Escherichia coli which contain a plasmid into which a gene encoding phospholamban has been inserted. 2. In vitro the phospholamban present in cardiac sarcoplasmic reticulum membranes is a better substrate for cyclic GMP-dependent protein kinase than for cyclic AMP-dependent protein kinase. 3. Studies using [32P]Pi to label the cellular ATP in intact cardiac or smooth muscle failed to demonstrate that phosphorylation of phospholamban occurs in response to stimuli which increase intracellular cyclic GMP. Possible reasons for this functional separation between increased cyclic GMP and phosphorylation of phospholamban are discussed.
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Affiliation(s)
- J P Huggins
- Department of Cellular Pharmacology, Smith Kline & French Research Ltd., Welwyn, Herts, U.K
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14
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Zealey GR, Goodey AR, Piggott JR, Watson ME, Cafferkey RC, Doel SM, Carter BL, Wheals AE. Amplification of plasmid copy number by thymidine kinase expression in Saccharomyces cerevisiae. Mol Gen Genet 1988; 211:155-9. [PMID: 2830462 DOI: 10.1007/bf00338407] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A 2 micron circle-based chimaeric plasmid containing the yeast LEU2 and the Herpes Simplex Virus type 1 thymidine kinase (HSV-1 TK) genes was constructed. Transformants grown under selective conditions for the LEU2 gene harboured the plasmid at about 15 copies per cell whilst selection for the HSV-1 TK gene led to an increase to about 100 copies per cell. Furthermore, the plasmid copy number could be controlled by the stringency of selection for the TK gene, and the increase in TK gene dosage was reflected in an increase in intracellular thymidine kinase activity. The mitotic stability of the plasmid in "high-copy" and "low-copy" number cells was determined. "High-copy" number cells showed a greater mitotic stability. The relationship of TK expression to plasmid copy number may be useful for the isolation of plasmid copy number mutants in yeast and the control of heterologous gene expression.
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Affiliation(s)
- G R Zealey
- School of Biological Sciences, University of Bath, UK
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15
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Piggott JR, Watson ME, Doel SM, Goodey AR, Carter BL. The secretion and post translational modification of interferons from Saccharomyces cerevisiae. Curr Genet 1987; 12:561-7. [PMID: 2458849 DOI: 10.1007/bf00368057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [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: 01/01/2023]
Abstract
Studies with three interferon molecules, IFN-alpha 2, IFN-beta 1, and a "hybrid" interferon, IFNX-430 are described which illustrate that both the expression and secretion characteristics of heterologous proteins in yeast cells reflect properties of the proteins themselves. Recombinant DNA techniques have also been used to demonstrate that the efficient processing of mature heterologous proteins from the yeast alpha factor secretion leader can be affected by sequences on the carboxyl side of the initial cleavage site. Secretion studies with heterologous proteins in S. cerevisiae are aimed at maximising yield, the percentage of extracellular product and correct amino terminus sequence. The results presented here show that all three factors are susceptible to currently unpredictable properties of the foreign sequence. This situation, in turn, means that heterologous proteins can be used as tools in the biochemical dissection of the yeast secretion process.
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Affiliation(s)
- J R Piggott
- G.D. Searle & Co., Limited, Buckinghamshire, UK
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16
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Carter BL, Doel S, Goodey AR, Piggott JR, Watson ME. Secretion of mammalian polypeptides from yeast. Microbiol Sci 1986; 3:23-7. [PMID: 3153138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Yeast cells are capable of expressing and secreting foreign polypeptides into the medium. Mammalian glycoproteins are glycosylated when secreted from yeast although the exact oligosaccharide sequence is not reproduced.
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Affiliation(s)
- B L Carter
- GD Searle & Company Ltd. High Wycombe, Buckinghamshire, UK
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17
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Abstract
The cell cycle in Saccharomyces cerevisiae is divided into two distinct phases. Unbudded, mononucleate cells in the G1 phase can react to relevant environmental changes by mating, sporulating, or by entering stationary phase. DNA synthesis and bud initiation occur almost simultaneously and mark 'commitment' to the completion of mitosis. Temperature-sensitive mutations at the cdc28 locus are known to cause arrest in the G1 phase of the cell cycle at the restrictive temperature. Here we show that the cdc28 gene product is also active in post-G1 cell cycle functions, and that a different property of the gene product may be required for each phase of the cycle in which it acts.
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18
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Piggott JR. Food preferences of some United Kingdom residents. J Hum Nutr 1979; 33:197-205. [PMID: 469235 DOI: 10.3109/09637487909143373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A food preference questionnaire was completed by 1304 people. There were considerable differences in food preferences related to age, sex, and area of residence of the respondents. In spite of these differences, five distinct clusters of foods showing similar preference patterns were indentified. These clusters were of sweet fruits, meats, vegetables, alcoholic beverages, and some high carbohydrate foods. The cause of the clustering was uncertain.
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