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Djebara A, Boulnois I, El Fatayri B, Mertl P, David E. Incidence of secondary displacement after osteosynthesis of proximal humerus fractures: a retrospective study of 185 cases. Acta Orthop Belg 2023; 89:531-538. [PMID: 37935239 DOI: 10.52628/89.3.8939] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Proximal humerus fractures are the third most common fracture in patients over 65 years of age. There is no clear consensus regarding their treatment. The objective of this retrospective observational study was to calculate the incidence of secondary displacement after osteosynthesis of these fractures and to identify possible risk factors. 185 cases were reviewed and all osteosynthesized fractures between January 2008 and December 2016 were included. Data collected included age, sex, body mass index, alcohol and tobacco use, bone mineral density of the proximal humerus, fracture type, initial displacement, management time, type of treatment, surgeon's experience and expertise, and postoperative reduction quality. A radiographic follow-up was done at least 3 months following the fracture (until consolidation). The definition of secondary displacement was: varus/valgus displacement >10°, tuberosity translation >5 mm, articular effraction or material breakage. 53 secondary displacements were found, with an incidence of 28.6%. Seventy-two percent were diagnosed at the first follow-up visit, which occurred at an average of 29 days postoperatively. Among all factors studied, only two were statistically significant for secondary displacement: 1) low proximal humeral bone density (defined by a Tingart index <4) appears to be a risk factor, with a calculated relative risk of 2.71 (p = 0.04); and 2) the operator's specialization in the upper limb appears to be a protective factor, with a relative risk of 0.27 (p = 0.01). A similar high incidence of complications after osteosynthesis of the proximal humerus is found in the literature, confirming the difficulty in managing these fractures. More attention should be given to patients with low bone density.
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Van Vliet A, Léon M, Rattier S, Haddad B, David E. New radiographic monitoring indices for total trapeziometacarpal prostheses. Hand Surg Rehabil 2023:S2468-1229(23)00076-2. [PMID: 37142124 DOI: 10.1016/j.hansur.2023.04.008] [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] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 04/18/2023] [Accepted: 04/22/2023] [Indexed: 05/06/2023]
Abstract
OBJECTIVE The objective of this study is to propose and evaluate a method of monitoring implants via the calculation of a trapezial and metacarpal index from radiological measurements and to describe an initial patient analysis. METHODS This retrospective study describes the trapezial index which reflects the trapezial bone stock not occupied by the trapezial cup, while the metacarpal index reflects the rate of metacarpal occupation by the prosthetic stem. Those indexes were used on a series of 20 patients with a Maïa™ prosthesis with a minimum follow-up of seven years. The indexes were measured immediately postoperatively and at the various annual check-ups. Four observers measured each index on two occasions, to obtain an inter- and intra-observer correlation coefficient. RESULTS The average intra-observer correlation coefficient for the trapezium index was 0.94, for the metacarpal index 0.98. The inter-observer correlation coefficient was 0.93 for the trapezium index, 0.94 for the metacarpal index on average. The post-hoc calculated power was 0.98 as the number of subjects required was not usable. The mean immediate postoperative trapezial index was 45.74%, compared with a value at longest follow-up of 41.74%, reflecting a highly significant loss of height of 8,74%. The mean immediate postoperative metacarpal index was 77.69% compared with a mean value at longest follow-up of 78.99% indicating a non-significant increase in the index of 1,67%. CONCLUSION Proposed indexes had excellent inter- and intra-observer correlation, the metacarpal one is stable over time whereas the trapezial one reveals changes in some patients, requiring further investigations. These simple and reproducible indexes allow precise monitoring of trapeziometacarpal prostheses and identify radiographic changes that should lead to additional examinations to improve survival of implants. LEVEL OF EVIDENCE III, retrospective single cohort study.
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Affiliation(s)
- A Van Vliet
- CHU Amiens-Picardie, SOS mains, CHU Amiens Sud, 1 Rue du Pr Christian Cabrol, 80000 Amiens, France.
| | - M Léon
- CHU Amiens-Picardie, SOS mains, CHU Amiens Sud, 1 Rue du Pr Christian Cabrol, 80000 Amiens, France
| | - S Rattier
- CHU Amiens-Picardie, SOS mains, CHU Amiens Sud, 1 Rue du Pr Christian Cabrol, 80000 Amiens, France
| | - B Haddad
- Clinique Conti, 3 Chemin des Trois Sources, 95290 L'Isle-Adam, France
| | - E David
- CHU Amiens-Picardie, SOS mains, CHU Amiens Sud, 1 Rue du Pr Christian Cabrol, 80000 Amiens, France
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3
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Owen A, David E, Edwards P. 558 An Evaluation of Surgical Input and Management of Head Injury in a New Acute Hospital in South Wales: Does It Need to Be a Headache? Br J Surg 2022. [DOI: 10.1093/bjs/znac269.350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Aim
The Grange University Hospital is a new major acute hospital in South Wales. Similarly, to other hospitals without neurosurgery, patients presenting to A&E with head injury (HI) that do not require transfer to a neurosurgery centre are admitted under general surgery. This audit aimed to:
Method
Patients admitted via A&E with the diagnosis code “Head Injury” (N=119) identified between November 28th-April 28th, 2021 (6 months). Paediatric (Aged 0–18) patients (N=25) were excluded as identified admitting team as per protocol is paediatrics. Relevant data extracted using Clinical Workstation.
Results
N =94 patients. Of these, 12 were discussed with neurosurgery and 1 patient transferred to a tertiary centre. 44% were referred to a surgical speciality other than general surgery for assessment. Despite this, of those 41, 61% (25) were admitted under general surgery (Average length of stay 2.5 days). Only 8 admitted patients necessitated plans beyond neuro observations. 28% of patients admitted under general surgery required medical assessment (4 falls assessments, 3 COTE referrals and subsequent takeovers). 0 patients had any general surgical pathology.
Conclusions
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Affiliation(s)
- A Owen
- Grange University Hospital , Cwmbran , United Kingdom
| | - E David
- Grange University Hospital , Cwmbran , United Kingdom
| | - P Edwards
- Grange University Hospital , Cwmbran , United Kingdom
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4
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Guttman-Yassky E, Facheris P, Da Rosa JC, Del Duca E, Estrada Y, David E, Pavel A, Bose S, Goncalves J, Nograles K, Kim B, Lebwohl M. 299 Oral difelikefalin improves itch and inflammatory biomarkers in atopic dermatitis subjects with moderate-to-severe pruritus. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.307] [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: 10/17/2022]
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Tully PA, Ng B, McGagh D, Meehan N, Khachane A, Higgs J, Newman M, Morgan L, David E, McCulloch P. Improving the WHO Surgical Safety Checklist sign-out. BJS Open 2021; 5:6271349. [PMID: 33960366 PMCID: PMC8103495 DOI: 10.1093/bjsopen/zrab028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 12/13/2020] [Accepted: 02/25/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND The WHO Surgical Safety Checklist has been shown to reduce perioperative morbidity and mortality worldwide. There is evidence to suggest that sign-out is the most poorly performed phase of the checklist as it coincides with a period of high workload for team members. This study aimed to see whether modification of this process might result in greater compliance. METHODS A controlled longitudinal (before and after) study was performed to evaluate the effect of a modified checklist sign-out on compliance in a single surgical department. Checklist quality was evaluated by measurement of checklist completion, active participation, and team member presence. Workload assessment was performed to identify the optimal moment for the sign-out process. The sign-out process was modified through an iterative multidisciplinary approach, informed by results from the workload assessment. Feedback was obtained through staff surveys. RESULTS A total of 185 operations were used, with an intervention group in vascular surgery and a control group in orthopaedics. The optimal timing for sign-out was identified as after final wound closure. The modified sign-out process improved active participation of team members (21 of 34 versus 31 of 34; P = 0.010). In the control group, complete compliance improved (48 of 76 versus 30 of 41; P = 0.041). However, active participation decreased (53 of 76 versus 19 of 41; P = 0.022). No differences were noted between groups in team member presence. Eighteen of 21 staff questioned viewed the modifications positively. CONCLUSION The optimal sign-out timing was identified as immediately after final wound closure prior to undraping the patient.
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Affiliation(s)
- P A Tully
- Department for Continuing Education, University of Oxford, Oxford, UK.,Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.,Patient Safety Academy, Health Education England Thames Valley, Oxford, UK
| | - B Ng
- Medical Sciences Division, University of Oxford, Oxford, UK
| | - D McGagh
- Medical Sciences Division, University of Oxford, Oxford, UK
| | - N Meehan
- Patient Safety Academy, Health Education England Thames Valley, Oxford, UK
| | - A Khachane
- Patient Safety Academy, Health Education England Thames Valley, Oxford, UK
| | - J Higgs
- Patient Safety Academy, Health Education England Thames Valley, Oxford, UK
| | - M Newman
- Patient Safety Academy, Health Education England Thames Valley, Oxford, UK
| | - L Morgan
- Patient Safety Academy, Health Education England Thames Valley, Oxford, UK
| | - E David
- Medical Sciences Division, University of Oxford, Oxford, UK
| | - P McCulloch
- Department for Continuing Education, University of Oxford, Oxford, UK.,Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.,Patient Safety Academy, Health Education England Thames Valley, Oxford, UK
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Levy J, David E, Hopkins T, Morris J, Tran N, Farid H, Massari F, O’Connell W, Vogel A, Gangi A, Sunenshine P, Dixon R, Bagla S. Abstract No. 78 Improvement in quality of life in patients treated for painful osseous metastases with radiofrequency ablation: the OPuS One study. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.501] [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] Open
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7
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David E, Belot A, Lega JC, Durieu I, Rousset-Jablonski C. [Human papillomavirus and systemic lupus erythematosus]. Rev Med Interne 2021; 42:498-504. [PMID: 33485700 DOI: 10.1016/j.revmed.2020.12.009] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/30/2020] [Accepted: 12/26/2020] [Indexed: 01/27/2023]
Abstract
Infection with human papillomavirus (HPV) is one of the most widespread sexually transmitted diseases and the main risk factor for cervical cancer. Underlying conditions, like immunosuppression, favour the persistence and the progression of cervical lesions to an aggressive form. Patients with autoimmune diseases, and particularly systemic lupus erythematosus (SLE), may be prone to HPV infection and cervical dysplasia. However, the risk factors for developing persistent HPV-related infection, dysplasia and cancer are not identified for patients with SLE. The existence of an increased risk of cervical cancer compared to the general population remains debated. Thus, HPV vaccine is recommended for SLE patients as well as for the general population. Vaccine coverage of SLE patients is not known in France. Adolescents with chronic health condition seem to be insufficiently vaccinated regarding their vulnerability to infectious diseases. Strategies are required to decrease HPV vaccination barriers.
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Affiliation(s)
- E David
- Service de médecine interne et pathologie vasculaire, centre hospitalier Lyon Sud, hospices civils de Lyon, université Claude-Bernard Lyon 1, Lyon, France.
| | - A Belot
- Service de rhumatologie, néphrologie et dermatologie pédiatrique, hospices civils de Lyon, université Claude-Bernard Lyon 1, hôpital Femme-mère-enfant, Lyon, France
| | - J-C Lega
- Service de médecine interne et pathologie vasculaire, centre hospitalier Lyon Sud, hospices civils de Lyon, université Claude-Bernard Lyon 1, Lyon, France
| | - I Durieu
- EA 7425 HESPER, médecine interne et pathologie vasculaire, groupement hospitalier Sud, hospices civils de Lyon, université Claude-Bernard Lyon 1, Lyon, France
| | - C Rousset-Jablonski
- Service de médecine interne, service de gynécologie-oncologie, centre Léon-Bérard, centre hospitalier Lyon Sud, hospices civils de Lyon, Lyon, France; EA 7425 HESPER, université Claude-Bernard Lyon 1, Lyon, France.
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8
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Karanicolas P, Beecroft JR, Cosby R, David E, Kalyvas M, Kennedy E, Sapisochin G, Wong R, Zbuk K. Regional Therapies for Colorectal Liver Metastases: Systematic Review and Clinical Practice Guideline. Clin Colorectal Cancer 2020; 20:20-28. [PMID: 33257278 DOI: 10.1016/j.clcc.2020.09.008] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 09/23/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Resection is the foundation for cure for colorectal cancer (CRC) liver metastases; however, only 20% of patients are suitable for surgery. Those suitable would be considered for resection or local therapies before being considered for regional therapies. Noncurative treatment is usually systemic chemotherapy. For patients with liver-only or liver-predominant metastases that are unresectable, regional therapies [conventional transarterial chemoembolization (cTACE), drug-eluting bead transarterial chemoembolization (DEB-TACE), and transarterial radioembolization (TARE)] may be considered. We review the current evidence for regional therapies for CRC liver metastases. PATIENTS AND METHODS Literature searches (January 2000 to March 2019 or January 2010 to March 2019 depending on the specific systematic review question) were conducted, including Medline, Embase, Cochrane Library, and 2018 American Society of Clinical Oncology (ASCO) abstracts. RESULTS A total of 4100 articles were identified; 15 studies were included in the review. There were no comparative data regarding the resectable population. There was either insufficient evidence (cTACE or DEB-TACE) or evidence against (TARE) the addition of regional therapies to systemic therapy in the first line in the unresectable population. There was either no evidence (cTACE) or weak evidence (DEB-TACE or TARE) for the addition of regional therapies with or without systemic therapy in the second line or later in the unresectable population. CONCLUSION Limited evidence supports the delivery of percutaneous regional therapies in patients with unresectable CRC liver metastases. There are strong data demonstrating positive effects of TARE within the liver, but they do not translate to a benefit in patient-important outcomes. DEB-TACE appears to offer a survival benefit in the second-line setting, although the evidence is limited by small sample size and larger trials are needed.
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Affiliation(s)
- P Karanicolas
- Department of Surgery, Sunnybrook Odette Cancer Centre, Toronto, Ontario, Canada.
| | - J R Beecroft
- Department of Medical Imaging, Mount Sinai Hospital, and University Health Network, Toronto, Ontario, Canada
| | - R Cosby
- Program in Evidence-Based Care, Department of Oncology, McMaster University, Juravinski Campus, Hamilton, Ontario, Canada
| | - E David
- Department of Medical Imaging, Sunnybrook Odette Cancer Centre, Toronto, Ontario, Canada
| | - M Kalyvas
- Department of Radiation Oncology, Cancer Centre of Southeastern Ontario, Kingston, Ontario, Canada
| | - E Kennedy
- Department of Surgery, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - G Sapisochin
- Department of Surgery, Toronto General Hospital, Toronto, Ontario, Canada
| | - R Wong
- Department of Radiation Oncology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - K Zbuk
- Department of Oncology, Juravinski Cancer Centre, McMaster University, Hamilton, Ontario, Canada
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9
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Levy J, Hopkins T, Morris J, Tran N, David E, Massari F, Bagla S. 3:00 PM Abstract No. 346 ■ DISTINGUISHED ABSTRACT Radiofrequency ablation for the palliative treatment of bone metastases: outcomes from a multicenter study in 100 patients. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.404] [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] Open
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10
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Rimokh J, Benazech B, Lebeau N, Haddad B, Moughabghab M, David E. Clinical and radiological outcomes of 40 cases of SLAC and SNAC wrist treated by four-corner arthrodesis with locking plate. Hand Surg Rehabil 2019; 39:36-40. [PMID: 31751792 DOI: 10.1016/j.hansur.2019.10.196] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 07/15/2019] [Accepted: 10/01/2019] [Indexed: 12/21/2022]
Abstract
The treatment of scapholunate advanced collapse (SLAC) and scaphoid nonunion advanced collapse (SNAC) wrist varies. No clear consensus exists on surgical indications. Scaphoid excision and four-corner arthrodesis with locking plate is one of preferred treatments for these lesions. The purpose of this study was to assess the clinical and radiological outcomes of locking plates for treating SNAC and SLAC wrist after a mean follow-up of 5 years and to compare these outcomes with the results reported in the literature. A retrospective study was conducted in two hospitals, involving 40 patients who underwent scaphoid excision and four-corner arthrodesis with locking plate between January 2006 and September 2016. All patients were reviewed as outpatients with clinical and radiographic measurements. At the last follow-up, the mean pain level on visual analog scale (VAS) was 2.5/10 [0-7] (SD: 1.7). Patients had a mean flexion of 46% and a mean extension of 46% compared to the contralateral side. An 18% gain was observed in grip strength. The mean postoperative QuickDASH score was 30 [0-57] (SD: 15.3). Seventy percent of patients were satisfied with the operation. Complete (all four joint interfaces) joint space fusion was achieved in 55% of patients. Only one patient (2.5%) had no joint fusion. The joint between the lunate and the capitate was fused in 38 patients (95%). Nine patients suffered complications; eight of them required surgical revision (20%). Four-corner arthrodesis with locking plate is a valuable surgical technique for treating SLAC and SNAC wrist because it preserve satisfactory range of motion and grip strength (64% compared to the non-operated side), maintains the height of the carpus and prevents the premature appearance of radiocarpal osteoarthritis, as long as the technical challenges of this procedure are mastered.
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Affiliation(s)
- J Rimokh
- Chirurgie orthopédique, university hospital Center of Amiens, avenue Rene Laennec, 80480 Salouel, France.
| | - B Benazech
- Chirurgie orthopédique, university hospital Center of Amiens, avenue Rene Laennec, 80480 Salouel, France
| | - N Lebeau
- Saint Quentin Hospital Center, 1, avenue Michel de l'Hospital, 02321 Saint-Quentin, France
| | - B Haddad
- Chirurgie orthopédique, university hospital Center of Amiens, avenue Rene Laennec, 80480 Salouel, France
| | - M Moughabghab
- Saint Quentin Hospital Center, 1, avenue Michel de l'Hospital, 02321 Saint-Quentin, France
| | - E David
- Chirurgie orthopédique, university hospital Center of Amiens, avenue Rene Laennec, 80480 Salouel, France
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David E, Dupont C, Desdoits A, Bronfen C, Laquievre A. Recurrence of a primary xanthoma of the humerus in a 9-year-old normolipidemic child. Arch Pediatr 2019; 26:411-414. [PMID: 31630906 DOI: 10.1016/j.arcped.2019.09.010] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 06/25/2019] [Accepted: 09/22/2019] [Indexed: 10/25/2022]
Abstract
Xanthomas are rare bone tumors that occur more often in patients with hyperlipidemia or metabolic disorders. We report the case of a 9-year-old child presenting with right shoulder pain after a trauma. A benign osteolytic lesion was found in the proximal humeral metaphysis. Curettage of the lesion was performed. Histologic findings confirmed intraosseous xanthoma. Although there was no evidence of dyslipidemia or metabolic disease, the patient suffered local recurrence at the 8-month follow-up, requiring a second surgery with bone grafting. This difficult and rare diagnosis must be kept in mind with osteolytic lesions.
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Affiliation(s)
- E David
- UNICAEN, department of pediatrics, Normandie université, CHU de Caen Normandie, 14000 Caen France.
| | - C Dupont
- UNICAEN, department of pediatrics, Normandie université, CHU de Caen Normandie, 14000 Caen France
| | - A Desdoits
- UNICAEN, department of pediatrics, Normandie université, CHU de Caen Normandie, 14000 Caen France
| | - C Bronfen
- UNICAEN, department of pediatric orthopedic surgery, Normandie université, CHU de Caen Normandie, 14000 Caen France
| | - A Laquievre
- UNICAEN, department of pediatric orthopedic surgery, Normandie université, CHU de Caen Normandie, 14000 Caen France
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Talbot N, David E, Downs M, Flight W. ePS4.10 Transferrin saturation in the assessment of iron deficiency in adults with cystic fibrosis. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30278-4] [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]
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13
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David E, Cagnol S, Goujon JY, Egorov M, Le Bot R. HBP-bound doxorubicin: Promising new therapy for bone cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy299.032] [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: 11/13/2022] Open
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14
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Kerambrun E, Delahaut L, Geffard A, David E. Differentiation of sympatric zebra and quagga mussels in ecotoxicological studies: A comparison of morphometric data, gene expression, and body metal concentrations. Ecotoxicol Environ Saf 2018; 154:321-328. [PMID: 29482127 DOI: 10.1016/j.ecoenv.2018.02.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 02/13/2018] [Accepted: 02/15/2018] [Indexed: 06/08/2023]
Abstract
The zebra mussel is among the best studied freshwater molluscs in ecotoxicology, but information on the quagga mussel is lacking. Considering its potential spread, we selected a river in France in which zebra and quagga mussels coexisted, and then we used genetic markers to differentiate the two species and compared morphological parameters. cDNA sequencing assays of ten genes already used in zebra mussels were performed on quagga mussels to obtain functional specific primers. Then we analyzed the expression of genes involved in cellular metabolic activities (Cytochrome-c-oxidase - cox, and ATP synthase - atp), detoxification processes (Glutathione-S-Transferase - gst), oxidative stress (Catalase - cat), and digestive functions (Amylase - amy) on the two species. Whereas morphometric analysis underlined similarities in shape between the two species, relative gene expression profiles and metal concentrations evidenced strong differences. Quagga mussels notably presented half as high concentrations in Cd and Pb, two particularly toxic elements, as zebra mussels. These results imply that i) particular attention should be paid to properly distinguish the two species considering their similar external appearance, and ii) zebra mussels cannot be replaced by quagga mussels in ecotoxicological studies without preliminary investigations on biomarker response patterns. To our knowledge, this study is the first to have undertaken such an approach in gene expression analysis in quagga mussels, and more generally to have compared such biomarker responses of zebra and quagga mussels in the field.
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Affiliation(s)
- E Kerambrun
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France.
| | - L Delahaut
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France
| | - A Geffard
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France
| | - E David
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France
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15
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Grazhdani H, David E, Ventura Spagnolo O, Buemi F, Perri A, Orsogna N, Gigli S, Chimenz R. Quality assurance of ultrasound systems: current status and review of literature. J Ultrasound 2018; 21:173-182. [PMID: 29949119 DOI: 10.1007/s40477-018-0304-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 05/23/2018] [Indexed: 11/27/2022] Open
Abstract
Diagnostic ultrasound (US) images can be obtained from a quality device, in optimal working conditions, combined with the capable actions of the operator in tweaking the equipment's characteristics. The quality assurance (QA) is the topic of this review article, and it is addressed in an US practice through proper selection of the equipment when purchasing, and through care and preventive maintenance of the machine for ensuring accurate performance. For optimal US system functioning, QA steps carried out on the basis of a scheduled program are needed in any US practice or department. It is critical to confirm in a semiannual or annual basis that the image quality is maintained according to standards and any subtle change in equipment's functioning is detected and amended at an early stage. The use of test objects (also called US testing phantoms) is required above the basic level of QA testing. The scope of this review article is to inform the US user about necessary QA knowledge and at the same time, present the state of the art of the most suitable test methods for US QA. We referred to relevant publications, selected after performing a systematic literature search of the MEDLINE, EMBASE and COCHRANE databases, and also to the standards established by authoritative international societies.
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Affiliation(s)
- H Grazhdani
- Associazione dei Cavalieri Italiani Sovrano Ordine Militare di Malta, Poliambulatorio Roma Eur, Rome, Italy
| | - E David
- Radiology Unit, Papardo Hospital, Viale Ferdinando Stagno d'Alcontres, 98158, Contrada Papardo, Messina, ME, Italy.
| | - O Ventura Spagnolo
- Radiology Unit, Papardo Hospital, Viale Ferdinando Stagno d'Alcontres, 98158, Contrada Papardo, Messina, ME, Italy
| | - F Buemi
- Radiology Unit, Papardo Hospital, Viale Ferdinando Stagno d'Alcontres, 98158, Contrada Papardo, Messina, ME, Italy
| | - A Perri
- Department of Biopathology and Medical Biotechnologies, Service of Radiological Sciences, University of Palermo, Palermo, Italy
| | - N Orsogna
- Department of Radiology, Oncology and Anatomo-Pathology, Sapienza University of Rome, Rome, Italy
| | - S Gigli
- Department of Radiology, Oncology and Anatomo-Pathology, Sapienza University of Rome, Rome, Italy
| | - R Chimenz
- Department of Pediatrics, Nephrology Unit, University School of Medicine, Messina, Italy
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16
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Helal E, Amurin L, Carastan D, de Sousa R, David E, Fréchette M, Demarquette N. Tuning the mechanical and dielectric properties of clay-containing thermoplastic elastomer nanocomposites. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- E. Helal
- Mechanical Engineering Department; École de Technologie Supérieure; Montréal Quebec Canada
| | - L.G. Amurin
- Mechanical Engineering Department; École de Technologie Supérieure; Montréal Quebec Canada
| | - D.J. Carastan
- Center for Engineering, Modeling and Applied Social Sciences; Federal University of ABC; Santo André Sao Paulo Brazil
| | - R.R. de Sousa
- Center for Engineering, Modeling and Applied Social Sciences; Federal University of ABC; Santo André Sao Paulo Brazil
| | - E. David
- Mechanical Engineering Department; École de Technologie Supérieure; Montréal Quebec Canada
| | - M. Fréchette
- Institut de Recherche d'Hydro-Québec; Varennes Quebec Canada
| | - N.R. Demarquette
- Mechanical Engineering Department; École de Technologie Supérieure; Montréal Quebec Canada
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17
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Helal E, Pottier C, David E, Fréchette M, Demarquette N. Polyethylene/thermoplastic elastomer/Zinc Oxide nanocomposites for high voltage insulation applications: Dielectric, mechanical and rheological behavior. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.02.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Miscione H, Redondo A, David E, Pistani JR. Clinical Use of Ilizarov’s Compression Technique in the Treatment of a Septic Pseudoarthrosis in a Calf. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1632562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
This article describes the use of the Ilizarov External Fixator Apparatus in infected suppurative pseudoarthrosis in a young calf.
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19
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Martini S, David E, Tandoi F, Dell Olio D, Salizzoni M, Saracco GM, Romagnoli R. HCV viremic donors with hepatic bridging fibrosis: Are we ready to use their livers in the era of direct-acting antivirals? Am J Transplant 2017; 17:2986-2987. [PMID: 28742943 DOI: 10.1111/ajt.14447] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/07/2017] [Accepted: 07/17/2017] [Indexed: 01/25/2023]
Affiliation(s)
- S Martini
- Gastrohepatology Unit, AOU Città della Salute e della Scienza di Torino, University of Torino, Turin, Italy
| | - E David
- Pathology Unit, AOU Città della Salute e della Scienza di Torino, University of Torino, Turin, Italy
| | - F Tandoi
- Liver Transplantation Center and General Surgery 2U, AOU Città della Salute e della Scienza di Torino, University of Torino, Turin, Italy
| | - D Dell Olio
- Regional Transplantation Center, Piedmont, AOU Città della Salute e della Scienza di Torino, University of Torino, Turin, Italy
| | - M Salizzoni
- Liver Transplantation Center and General Surgery 2U, AOU Città della Salute e della Scienza di Torino, University of Torino, Turin, Italy
| | - G M Saracco
- Gastrohepatology Unit, AOU Città della Salute e della Scienza di Torino, University of Torino, Turin, Italy
| | - R Romagnoli
- Liver Transplantation Center and General Surgery 2U, AOU Città della Salute e della Scienza di Torino, University of Torino, Turin, Italy
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20
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Helal E, Amurin L, Carastan D, de Sousa R, David E, Fréchette M, Demarquette N. Interfacial molecular dynamics of styrenic block copolymer-based nanocomposites with controlled spatial distribution. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Maes V, Betoulle S, Geffard A, Vettier A, David E. Aerobic and anaerobic energy production in juvenile roach (Rutilus rutilus): regulation of glycolytic process by ethofumesate at two temperatures. Environ Sci Pollut Res Int 2017; 24:6853-6865. [PMID: 27106075 DOI: 10.1007/s11356-016-6661-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 04/10/2016] [Indexed: 06/05/2023]
Abstract
The aim of this study was to evaluate the coupled impact of an herbicide, ethofumesate, and temperature on the cellular energy metabolism of juvenile roach, especially on the glycolysis pathway. Juvenile roach were exposed to 0, 0.5, 5, and 50 μg/L of ethofumesate for 7 days in laboratory conditions at two temperatures (10 and 17 °C). The energy reserves (carbohydrate, lipid, and protein) were quantified, since the availability of substrates regulates the glycolysis. Then, the glycolysis was studied at the biochemical level by the measurement of the glycolytic flux and at the molecular level with the measurement of the relative expression of four genes encoding for glycolysis enzymes. This study revealed different effect of ethofumesate on the glycolysis pathway according to the temperature of exposure. Indeed, at 10 °C, it appeared that only the molecular regulation level was affected, whereas, at 17 °C, ethofumesate acted on the biochemical level. The differences observed between the two exposures imply the establishment of different strategies in order to maintain to cope with stress according to the temperature of exposure.
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Affiliation(s)
- V Maes
- UMR-I 02 SEBIO, Stress Environnementaux et BIOsurveillance des Milieux Aquatiques, Université de Reims Champagne-Ardenne, BP 1039, 51687, Reims Cedex 2, France.
| | - S Betoulle
- UMR-I 02 SEBIO, Stress Environnementaux et BIOsurveillance des Milieux Aquatiques, Université de Reims Champagne-Ardenne, BP 1039, 51687, Reims Cedex 2, France
| | - A Geffard
- UMR-I 02 SEBIO, Stress Environnementaux et BIOsurveillance des Milieux Aquatiques, Université de Reims Champagne-Ardenne, BP 1039, 51687, Reims Cedex 2, France
| | - A Vettier
- UMR-I 02 SEBIO, Stress Environnementaux et BIOsurveillance des Milieux Aquatiques, Université de Reims Champagne-Ardenne, BP 1039, 51687, Reims Cedex 2, France
| | - E David
- UMR-I 02 SEBIO, Stress Environnementaux et BIOsurveillance des Milieux Aquatiques, Université de Reims Champagne-Ardenne, BP 1039, 51687, Reims Cedex 2, France
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22
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Dast S, Vaucher R, Rotari V, Assaf N, David E, Christian H, Sinna R. Les lambeaux cutanés minces dans la prise en charge des pertes de substance cutanée de la main et du membre supérieur. ANN CHIR PLAST ESTH 2017; 62:69-78. [DOI: 10.1016/j.anplas.2016.03.001] [Citation(s) in RCA: 4] [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] [Received: 01/18/2016] [Accepted: 03/07/2016] [Indexed: 10/21/2022]
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23
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Kerambrun E, Rioult D, Delahaut L, Evariste L, Pain-Devin S, Auffret M, Geffard A, David E. Variations in gene expression levels in four European zebra mussel, Dreissena polymorpha, populations in relation to metal bioaccumulation: A field study. Ecotoxicol Environ Saf 2016; 134P1:53-63. [PMID: 27588554 DOI: 10.1016/j.ecoenv.2016.08.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 08/22/2016] [Accepted: 08/23/2016] [Indexed: 06/06/2023]
Abstract
The present study was performed to validate the suitability of using gene expression in zebra mussels, Dreissena polymorpha, for biomonitoring of freshwater environment. Mussels were collected in four French rivers (Meuse, Moselle, Oise and Vilaine) in spring and autumn. Relative gene expression of 9 candidate genes involved in cellular metabolic activities (Cytochrome-c-oxidase - cox, and ATP synthase - atp), detoxification process (Metallothionein - mt and Glutathion-S-Transferase - gst), oxidative stress (Catalase - cat, Superoxyde Dismutase - sod and Glutathion peroxidase - gpx) and digestive functions (Amylase - amy and Cellulase - ghf) were measured in digestive gland. Metal bioaccumulation in tissues and morphometric parameters were also analyzed to interpret molecular responses. All our results are consistent with different physiological reactions to environmental condition between zebra mussel populations. In spring, the levels of mt, sod, gpx, cat, atp, amy and ghf relative expression were significantly higher in mussels with the lowest metal bioaccumulation (the Meuse) compared to at least one of the other sites. In autumn, this higher expression levels in Meuse River were still observed for gpx, cat, atp and amy. This study has also pointed out different sources of variability in gene expression (individual size, season, trophic resources and origin of mussels) which are inevitable in natural fluctuant environment. This underlines the importance to take them into account in field study to propose a correct interpretation of biomarker responses.
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Affiliation(s)
- E Kerambrun
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France.
| | - D Rioult
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France; Université de Reims Champagne-Ardenne/INERIS, Plateau Technique mobile de cytométrie environnementale MOBICYTE, France
| | - L Delahaut
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France
| | - L Evariste
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France; Institut National de la Recherche Scientifique, INRS, Institut Armand Frappier, 531 Boulevard des Prairies, Laval, Quebec, Canada H7V 1B7
| | - S Pain-Devin
- Université de Lorraine, UMR 7360 LIEC (Laboratoire Interdisciplinaire des Environnements Continentaux), CNRS, France
| | - M Auffret
- Université de Bretagne Occidentale, UMR 6539-LEMAR (Laboratoire des Sciences de l'Environnement Marin), IUEM, UBO-CNRS-IRD-Ifremer, F-29280 Plouzane, France
| | - A Geffard
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France
| | - E David
- Université de Reims Champagne-Ardenne, UMR-I 02 SEBIO (Stress Environnementaux et BIOsurveillance des milieux aquatiques), INERIS-URCA-ULH, France
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24
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David E, Cantisani V, Grazhdani H, Di Marzo L, Venturini L, Fanelli F, Di Segni M, Di Leo N, Brunese L, Calliada F, Ciccariello M, Bottari A, Ascenti G, D'Ambrosio F. What is the role of contrast-enhanced ultrasound in the evaluation of the endoleak of aortic endoprostheses? A comparison between CEUS and CT on a widespread scale. J Ultrasound 2016; 19:281-287. [PMID: 27965719 DOI: 10.1007/s40477-016-0222-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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: 06/08/2016] [Accepted: 09/10/2016] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE To evaluate the accuracy of contrast-enhanced ultrasound (CEUS) in comparison to CT angiography (CTA) to identify and classify endoleaks following abdominal aortic aneurism repair with endoprosthesis. MATERIALS AND METHODS A retrospective analysis of 181 patients treated with EVAR, from September 2009 to September 2014, was performed. Patients were evaluated with CEUS, CTA and angiography in the cases requiring treatment. Sac diameter, sac integrity, identification and classification of endoleaks were taken into consideration. Sensitivity, specificity, accuracy and negative predictive values were considered for each modality of endoleak identification. RESULTS Forty-two endoleaks (23.2%; type II: 39 cases, type III: 3 cases) were documented. Sensitivity and specificity of CEUS and CT were, respectively, 97.6 and 90.5, 100 and 100%. In two cases, CEUS was able to better classify endoleaks compared to CT. CONCLUSIONS CEUS accuracy to identify endoleaks following EVAR is similar to CT. CEUS should be considered as an effective modality for the long-term surveillance of EVAR because of its capability to correctly classify endoleaks with no ionizing radiation exposure.
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Affiliation(s)
- E David
- Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Via Consolare Valeria 1, 98124 Messina, Italy
| | - V Cantisani
- Department of Radiology, Oncology, and Anatomo Pathology, "Sapienza" University of Rome, Rome, Italy
| | - H Grazhdani
- Associazione dei Cavalieri Italiani Sovrano Militare Ordine di Malta; Poliambulatorio Roma, Eur Piazza Guglielmo Marconi 12, 00144 Rome, Italy
| | - L Di Marzo
- Department of Surgery Pietro Valdoni, Sapienza University, Rome, Italy
| | - L Venturini
- Department of Surgery Pietro Valdoni, Sapienza University, Rome, Italy
| | - F Fanelli
- Department of Radiology, Oncology, and Anatomo Pathology, "Sapienza" University of Rome, Rome, Italy
| | - M Di Segni
- Department of Radiology, Oncology, and Anatomo Pathology, "Sapienza" University of Rome, Rome, Italy
| | - N Di Leo
- Department of Radiology, Oncology, and Anatomo Pathology, "Sapienza" University of Rome, Rome, Italy
| | - L Brunese
- Department of Medicine and Health Sciences, University of Molise, Contrada Tappino, 86100 Campobasso, Italy
| | - F Calliada
- University Hospital of Pavia, Viale Camillo Golgi 19, 27100 Pavia, Italy
| | - M Ciccariello
- Department of Radiology, Oncology, and Anatomo Pathology, "Sapienza" University of Rome, Rome, Italy
| | - A Bottari
- Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Via Consolare Valeria 1, 98124 Messina, Italy
| | - G Ascenti
- Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Via Consolare Valeria 1, 98124 Messina, Italy
| | - F D'Ambrosio
- Department of Radiology, Oncology, and Anatomo Pathology, "Sapienza" University of Rome, Rome, Italy
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25
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Cantisani V, David E, Sidhu PS, Sacconi B, Greco A, Pandolfi F, Tombolini M, Lo Mele L, Calliada F, Brunese L, Catalano C, De Vincentiis M, Di Leo N, Ascenti G, D'Ambrosio F. Parotid Gland Lesions: Multiparametric Ultrasound and MRI Features. Ultraschall Med 2016; 37:454-471. [PMID: 27300273 DOI: 10.1055/s-0042-109171] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
High-resolution ultrasound (US), as a readily available, cost-effective and harmless imaging technique, is appropriately the initial imaging modality for salivary gland lesions. Benign tumors are reported to present with regular and well-defined margins, a homogeneous hypoechoic structure and demarcated vessel distribution, whereas malignant lesions are irregular, heterogeneous and diffusely perfused. Ultrasound and color Doppler features of benign and malignant salivary gland lesions overlap, and many benign tumors, particularly pleomorphic adenomas, may appear irregularly shaped, with a heterogeneous echo-structure indistinguishable from a malignant lesion. Often skilled US operators are not always able to differentiate benign from malignant lesions. The introduction of US contrast agents has allowed further perspectives in the possible improvement of lesion characterization, and the emergence of US elastography, an innovative tool for assessing lesion stiffness/elasticity characteristics, has been advocated for differentiating salivary gland lesions. When lesions are atypical on US, contrast-enhanced magnetic resonance (MR) imaging is usually the definitive imaging modality. We present a current review of benign and malignant parotid gland tumors with emphasis on the role of multiparametric US and MR imaging.
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Affiliation(s)
- V Cantisani
- Department of Radiology, "Sapienza" University of Rome, Rome, Italy
| | - E David
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico "G. Martino", University of Messina, Messina, Italy
| | - P S Sidhu
- Radiology, King's College London, United Kingdom of Great Britain and Northern Ireland
| | - B Sacconi
- Department of Radiological, Oncological and Anatomopathological Sciences-Radiology, "Sapienza" University of Rome, Rome, Italy, Universita degli Studi di Roma La Sapienza, Roma, Italy
| | - A Greco
- Department of Sense Organs, ENT Section, Policlinico "Umberto I", Sapienza University of Rome, Italy; Universita degli Studi di Roma La Sapienza, Roma, Italy
| | - F Pandolfi
- Department of Sense Organs, ENT Section, Policlinico "Umberto I", Sapienza University of Rome, Italy; Universita degli Studi di Roma La Sapienza, Roma, Italy
| | - M Tombolini
- Department of Sense Organs, ENT Section, Policlinico "Umberto I", Sapienza University of Rome, Italy; Universita degli Studi di Roma La Sapienza, Roma, Italy
| | - L Lo Mele
- Department of Radiological, Oncological and Anatomopathological Sciences-Radiology, "Sapienza" University of Rome, Rome, Italy, Universita degli Studi di Roma La Sapienza, Roma, Italy
| | - F Calliada
- Department of Radiology, Policlinico San Matteo, Pavia, Italy
| | - L Brunese
- Dipartimento di Medicina e di Scienze della Salute, Università degli Studi del Molise, Campobasso, Italy
| | - C Catalano
- Department of Radiology, "Sapienza" University of Rome, Rome, Italy
| | - M De Vincentiis
- Department of Sense Organs, ENT Section, Policlinico "Umberto I", Sapienza University of Rome, Italy; Universita degli Studi di Roma La Sapienza, Roma, Italy
| | - N Di Leo
- Department of Radiological, Oncological and Anatomopathological Sciences-Radiology, "Sapienza" University of Rome, Rome, Italy, Universita degli Studi di Roma La Sapienza, Roma, Italy
| | - G Ascenti
- Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico "G. Martino", University of Messina, Messina, Italy
| | - F D'Ambrosio
- Radioligical sciences, Policlinico Umberto I, Univ. Sapienza, Roma, Italy
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26
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Royse A, Zulfayandi P, Jared O, David E, Andrew A, William W, Colin R. Long-Term Postoperative Patency of Radial Artery is Superior to Saphenous Vein Graft. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.114] [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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27
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Dast S, Dessena L, Assaf N, David E, Herlin C, Sinna R. [Ring finger reconstruction by Colson's flap]. ANN CHIR PLAST ESTH 2016; 62:104-108. [PMID: 27344423 DOI: 10.1016/j.anplas.2016.05.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 05/29/2016] [Indexed: 10/21/2022]
Abstract
Surgical treatment of complete cutaneous ring finger avulsion is a challenge in hand surgery. When replantation of the avulsed fragment is not technically feasible, the surgeon must consider reconstruction of soft tissue. Many surgical techniques have been described. We report a case of complete avulsion of the cutaneous sheath and nail of the fourth finger with preservation of mobility and collateral nerves. The reconstruction of soft tissue was performed by a Colson flap-graft. This simple and reliable technique of reconstruction allowed to obtain a functional and sensitive finger with a satisfactory cosmetic result.
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Affiliation(s)
- S Dast
- CHU d'Amiens, service de chirurgie plastique, reconstructrice et esthétique, Amiens, France
| | - L Dessena
- CHU d'Amiens, service de chirurgie plastique, reconstructrice et esthétique, Amiens, France
| | - N Assaf
- CHU d'Amiens, service de chirurgie plastique, reconstructrice et esthétique, Amiens, France
| | - E David
- CHU d'Amiens, unité de chirurgie de la main, Amiens, France
| | - C Herlin
- CHU d'Amiens, service de chirurgie plastique, reconstructrice et esthétique, Amiens, France
| | - R Sinna
- CHU d'Amiens, service de chirurgie plastique, reconstructrice et esthétique, Amiens, France.
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28
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Romagnoli R, Martini S, Giacometti R, David E, Martina MC, D'Errico A, Grigioni WF, Strignano P, Rizza G, Mirabella S, Amoroso A, Salizzoni M. Successful Urgent Liver Retransplantation for Donor-Transmitted Hepatocellular Carcinoma. Am J Transplant 2016; 16:1938-9. [PMID: 26752588 DOI: 10.1111/ajt.13712] [Citation(s) in RCA: 2] [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: 01/25/2023]
Affiliation(s)
- R Romagnoli
- Liver Transplantation Center, General Surgery Unit 2U, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - S Martini
- Liver Transplantation Center, Gastrohepatology Unit, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - R Giacometti
- Regional Transplantation Center, Piedmont, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - E David
- Pathology Unit, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - M C Martina
- Radiology Unit 3U, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - A D'Errico
- Department of Specialty, Diagnostic and Experimental Medicine (DIMES), "F. Addarii" Institute of Oncology and Transplant Pathology, S. Orsola-Malpighi University Hospital, Bologna, Italy
| | - W F Grigioni
- Department of Specialty, Diagnostic and Experimental Medicine (DIMES), "F. Addarii" Institute of Oncology and Transplant Pathology, S. Orsola-Malpighi University Hospital, Bologna, Italy
| | - P Strignano
- Liver Transplantation Center, General Surgery Unit 2U, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - G Rizza
- Liver Transplantation Center, General Surgery Unit 2U, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - S Mirabella
- Liver Transplantation Center, General Surgery Unit 2U, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - A Amoroso
- Regional Transplantation Center, Piedmont, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - M Salizzoni
- Liver Transplantation Center, General Surgery Unit 2U, Molinette Hospital, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
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29
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David E, Cantisani V, De Vincentiis M, Sidhu PS, Greco A, Tombolini M, Drudi FM, Messineo D, Gigli S, Rubini A, Fresilli D, Ferrari D, Flammia F, D'Ambrosio F. Contrast-enhanced ultrasound in the evaluation of parotid gland lesions: an update of the literature. Ultrasound 2016; 24:104-10. [PMID: 27482279 DOI: 10.1177/1742271x15626611] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 12/17/2015] [Indexed: 12/30/2022]
Abstract
High-resolution ultrasound is the first line examination for parotid gland diffuse disease and focal lesions, normally using grey-scale and colour-Doppler ultrasound. Unfortunately, grey-scale and colour-Doppler ultrasound features of benign and malignant salivary gland lesions may overlap, particularly with benign tumors, where pleomorphic adenomas are often indistinguishable from malignant lesions. With atypical lesions, contrast-enhanced magnetic resonance imaging is usually the second level imaging modality requested. The introduction of ultrasound contrast agents has opened further possible perspectives to improve the interpretation of parotid diseases, particularly the differentiation between benign and malignant lesions. We present a review of the current literature on contrast-enhanced ultrasound for the assessment of parotid gland lesions, considering all characteristics of the technique, evidence of usefulness, future perspectives and limitations.
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Affiliation(s)
- E David
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy; Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico "G. Martino", University of Messina, Italy
| | - V Cantisani
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
| | - M De Vincentiis
- Department of Sensory Organs, ENT Section, Sapienza University of Rome, Italy - Department of Surgical Sciences, Sapienza University of Rome, Italy
| | - P S Sidhu
- Department of Radiology, King's College Hospital, Denmark Hill, London, UK
| | - A Greco
- Department of Sensory Organs, ENT Section, Sapienza University of Rome, Italy - Department of Surgical Sciences, Sapienza University of Rome, Italy
| | - M Tombolini
- Department of Sensory Organs, ENT Section, Sapienza University of Rome, Italy - Department of Surgical Sciences, Sapienza University of Rome, Italy
| | - F M Drudi
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
| | - D Messineo
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
| | - S Gigli
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
| | - A Rubini
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
| | - D Fresilli
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
| | - D Ferrari
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
| | - F Flammia
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
| | - F D'Ambrosio
- Department of Radiology, Anatomo-pathology and Oncology, Sapienza University of Rome, Italy
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Di Sante L, Camerota F, Celletti C, Ioppolo F, Santilli V, David E. A rare localization of neurothekeomas of radial nerve: A case report. Clin Ter 2016; 166:e381-3. [PMID: 26794820 DOI: 10.7417/t.2015.1904] [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: 11/20/2022]
Abstract
Neurothekeoma is a very rare benign connective tissue tumour that presumably derived from nerve sheath cells. We described the case of a rare localization of neurothekeoma in the upper limb with a strange presentation. A 49 years-old woman presented to the Physical Medicine and Rehabilitation Division of the Umberto I Hospital referring an intensive pain associated to paresthesias at the left forearm lasting from six months. The patient had a history of epicondylitis confirmed with an elbow RMN showing an increased thickness of the tendon insertions on the epicondiloidea region of the elbow. Rehabilitative and physical therapy has been done without symptoms remission. An ultrasound evaluation showed an oval formation well circumscribed in the context of the radial nerve. It was easy to demonstrate the relevance of the radial nerve, following it from the arch of Frohse until the humeral sulcus of the radial nerve. A MRI that showed a mass, mildly hypointense on T1- weighted sequences and hyperintense on T2-weighted images, with nonhomogeneous enhancement post-contrast, attributable to expansionary pathology of the radial nerve. A biopsy was done and the lesion was described as a benign tumor of nerve sheath, i.e., a Neurothekeoma of the radial nerve. Patients was surgically treated, the tumor has been removed and she referred the resolution of symptomatology.
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Affiliation(s)
- L Di Sante
- Physical Medicine and Rehabilitation Division, Umberto I Hospital, "Sapienza" University of Rome, Italy
| | - F Camerota
- Physical Medicine and Rehabilitation Division, Umberto I Hospital, "Sapienza" University of Rome, Italy
| | - C Celletti
- Physical Medicine and Rehabilitation Division, Umberto I Hospital, "Sapienza" University of Rome, Italy
| | - F Ioppolo
- Physical Medicine and Rehabilitation Division, Umberto I Hospital, "Sapienza" University of Rome, Italy
| | - V Santilli
- Physical Medicine and Rehabilitation Division, Umberto I Hospital, "Sapienza" University of Rome, Italy
| | - E David
- Department of Biomedical Sciences and Morphological and Functional Imaging, University of Messina, Messina, Italy - Department of Radiology, Oncology and Anatomo-Pathology, "Sapienza" University, Rome, Italy
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Moreira C, Guerreiro C, Simões E, Carolino E, David E, Mendes L, Jorge A. SUN-PP230: The Influence of Shift Work on the Diet of Ground Workers of tap Portugal Portuguese air Transport. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30381-2] [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: 10/23/2022]
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Sänger A, Fretz A, David E. Honig in der modernen Wundbehandlung. Akt Dermatol 2015. [DOI: 10.1055/s-0034-1392443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - A. Fretz
- Zentrum für Elektropathologie und Umweltmedizin, Witten
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Helal E, Demarquette N, Amurin L, David E, Carastan D, Fréchette M. Styrenic block copolymer-based nanocomposites: Implications of nanostructuration and nanofiller tailored dispersion on the dielectric properties. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.026] [Citation(s) in RCA: 19] [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: 10/23/2022]
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Thirumalai T, Viviyan TS, Elumalai EK, David E. Hypolipidaemic and antioxidant effect of Enicostemma littorale Blume. Asian Pac J Trop Biomed 2015; 1:381-5. [PMID: 23569797 DOI: 10.1016/s2221-1691(11)60084-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 03/10/2011] [Revised: 03/27/2011] [Accepted: 04/15/2011] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE To investigate the hypolipidaemic and antioxidant effects of aqueous leaf extract of Enicostemma littorale (E. littorale) Blume (Ens) against ethanol induced hepatic injury in albino rats. METHODS Male albino rats of six numbers in each group were undertaken for study. Hypolipidaemic and antioxidant effect of E. littorale Blume (Ens) aqueous leaf extract at a dosage of 250 mg/kg bw was evaluated. RESULTS Levels of serum and tissue cholesterol, triglycerides and free fatty acids were elevated and levels of tissue thiobarbituric acid reactive substances (TBARS) and lipid hydroperoxide were increased in ethanol treated rats. The activity levels of liver antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) and glutathione-s-transferase (GST) were decreased. After adiminstration of extract of E. littorale Blume, levels of cholesterol, triglycerides and free fatty acids were decreased in serum and liver tissue, levels of TBARS and lipid hydroperoxide were decreased, and liver antioxidant enzymes were increased in liver tissue. CONCLUSIONS It can be concluded that the aqueous leaf extract of E. littorale Blume (Ens) has potent restorative effect on hyperlipidaemic and oxidative stress.
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Affiliation(s)
- T Thirumalai
- Post Graduate and Research Department of Zoology, Voorhees College, Physiology Wing, Vellore-632 001, Tamilnadu, India
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Thirumalai T, David E, Viviyan TS, Elumalai EK. Effect of Solanum surattense seed on the oxidative potential of cauda epididymal spermatozoa. Asian Pac J Trop Biomed 2015; 2:21-3. [PMID: 23569828 DOI: 10.1016/s2221-1691(11)60183-4] [Citation(s) in RCA: 9] [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: 06/05/2011] [Revised: 06/27/2011] [Accepted: 07/03/2011] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To evaluate the effect of aqueous seed extract of Solanum surattense (S. surattense) on the oxidative potential of cauda epididymal spermatozoa. METHODS S. surattense seed extract was orally administered at the dosage of 10 mg/kg b.w. for 15 days, after which aspartate transferase (AST), alanine transferase (ALT), glutamate dehydrogenase (GDH), citric acid and iso-citrate dehydrogenase (ICDH) were assayed. RESULTS The activity levels of the enzymes AST and ALT, which are considered to be the androgenicity in the sperm suspension, were depleted in the extract fed rats. The activity level of the enzyme ICDH, was reduced significantly in the treated group (P<0.001). CONCLUSIONS It can be concluded that the oral administration of the aqueous seed extract of S. surattense can deplete the oxidative stress of cauda epididymal spermatozoa in albino rats.
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Affiliation(s)
- T Thirumalai
- Post Graduate and Research Department of Zoology, Voorhees College, Physiology Wing, Vellore-632 001, Tamilnadu, India
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Thirumalai T, Therasa SV, Elumalai EK, David E. Hypoglycemic effect of Brassica juncea (seeds) on streptozotocin induced diabetic male albino rat. Asian Pac J Trop Biomed 2015; 1:323-5. [PMID: 23569784 DOI: 10.1016/s2221-1691(11)60052-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [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: 02/15/2011] [Revised: 03/27/2011] [Accepted: 04/10/2011] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To evaluate the hypoglycemic effect of Brassica juncea (seeds) on streptozotocin induced diabetic male albino rats. METHODS Hypoglycemic activity of Brassica juncea (seeds) aqueous extract at a dose of 250, 350 and 450 mg/kg body weight was evaluated. Adult male Swiss albino rats of six numbers in each group was undertaken for study and evaluated. RESULTS The serum insulin levels were recorded a significant depletion in all groups, short term as well as long term diabetic animals, when compared to that of normal animals. A significant dosage dependent augmenting effect of the seed extract on the serum insulin was recorded in both short term as well as long term groups. CONCLUSIONS The aqueous seed extract of Brassica juncea has potent hypoglycemic activity in male albino rat.
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Affiliation(s)
- T Thirumalai
- P.G. and Research Department of Zoology, Voorhees College, Physiology wing, Vellore-632 001(T.N.), India
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Tingerides C, David E, Kaduri S, Annamalai G. Non-invasive vascular imaging and endovascular therapy for non-ischemic priapism. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.467] [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: 10/24/2022] Open
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38
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Tingerides C, Annamalai G, Kaduri S, Dey C, Pugash R, David E. Transcatheter arterial embolization for chest wall injury: 10 year experience. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.424] [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: 10/24/2022] Open
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39
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Maes V, Vettier A, Dedourge-Geffard O, Geffard A, Paris-Palacios S, Betoulle S, David E. Effect of ethofumesate herbicide on energy metabolism in roach (Rutilus rutilus). J Xenobiot 2014. [DOI: 10.4081/xeno.2014.4901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Not available
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Bigwan EI, Ohaeri MC, David E, Wakjissa FD, Sheyin Z. Some risk factors associated with acid-alcohol-fast bacilli in patients with suspected pulmonary tuberculosis in Jos, central Nigeria. Afr J Infect Dis 2014. [DOI: 10.4314/ajid.v8i2.1] [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: 11/17/2022] Open
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41
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Calvo PL, Brunati A, Spada M, Romagnoli R, Corso G, Parenti G, Rossi M, Baldi M, Carbonaro G, David E, Pucci A, Amoroso A, Salizzoni M. Liver transplantation in defects of cholesterol biosynthesis: the case of lathosterolosis. Am J Transplant 2014; 14:960-5. [PMID: 24621408 DOI: 10.1111/ajt.12645] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 08/20/2013] [Revised: 12/26/2013] [Accepted: 12/27/2013] [Indexed: 01/25/2023]
Abstract
We report the outcome of liver transplantation (LT) in the only surviving patient with lathosterolosis, a defect of cholesterol biosynthesis characterized by high lathosterol levels associated with progressive cholestasis, multiple congenital anomalies and mental retardation. From her diagnosis at age 2 she had shown autistic behavior, was unable to walk unaided and her sight was impaired by cataracts. By age 7 she developed end-stage liver disease. After a soul-searching discussion within the transplantation team, she was treated with LT as this represented her only lifesaving option. At 1-year follow-up, her lathosterol levels had returned to normal (0.61 mg/dL from 13.04 ± 2.65) and her nutrition improved. She began exploring her environment and walking by holding onto an adult's hand and then independently. Her brain magnetic resonance imaging (MRI) had shown a normal picture at age 1, whereas a volume reduction of white matter with ex vacuo ventricular dilatation and defective myelinization were observed before transplant. At 5-year follow-up, a complete biochemical recovery, an arrest of mental deterioration and a stable MRI picture were achieved, with a return to her every day life albeit with limitations. Timely liver transplant in defects of cholesterol biosynthesis might arrest the progression of neurological damage.
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Affiliation(s)
- P L Calvo
- Department of Pediatrics, Azienda Ospedaliera Città della Salute e della Scienza, University of Turin, Turin, Italy
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Alawneh JI, Barnes TS, Parke C, Lapuz E, David E, Basinang V, Baluyut A, Villar E, Lopez EL, Blackall PJ. Description of the pig production systems, biosecurity practices and herd health providers in two provinces with high swine density in the Philippines. Prev Vet Med 2014; 114:73-87. [PMID: 24529343 DOI: 10.1016/j.prevetmed.2014.01.020] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 01/16/2014] [Accepted: 01/20/2014] [Indexed: 10/25/2022]
Abstract
A cross-sectional study was conducted between October 2011 and March 2012 in two major pig producing provinces in the Philippines. Four hundred and seventy one pig farms slaughtering finisher pigs at government operated abattoirs participated in this study. The objectives of this study were to group: (a) smallholder (S) and commercial (C) production systems into patterns according to their herd health providers (HHPs), and obtain descriptive information about the grouped S and C production systems; and (b) identify key HHPs within each production system using social network analysis. On-farm veterinarians, private consultants, pharmaceutical company representatives, government veterinarians, livestock and agricultural technicians, and agricultural supply stores were found to be actively interacting with pig farmers. Four clusters were identified based on production system and their choice of HHPs. Differences in management and biosecurity practices were found between S and C clusters. Private HHPs provided a service to larger C and some larger S farms, and have little or no interaction with the other HHPs. Government HHPs provided herd health service mainly to S farms and small C farms. Agricultural supply stores were identified as a dominant solitary HHP and provided herd health services to the majority of farmers. Increased knowledge of the routine management and biosecurity practices of S and C farmers and the key HHPs that are likely to be associated with those practices would be of value as this information could be used to inform a risk-based approach to disease surveillance and control.
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Affiliation(s)
- J I Alawneh
- School of Veterinary Science, University of Queensland, Gatton 4343, Queensland, Australia.
| | - T S Barnes
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, St Lucia 4067, Queensland, Australia
| | - C Parke
- School of Veterinary Science, University of Queensland, Gatton 4343, Queensland, Australia
| | - E Lapuz
- Department of Agriculture Region 3, RADDL, Pampanga, Philippines
| | - E David
- Department of Agriculture Region 3, RADDL, Pampanga, Philippines
| | - V Basinang
- Provincial Veterinary Office of Bulacan, Malolos City, Bulacan, Philippines
| | - A Baluyut
- Provincial Veterinary Office of Pampanga, City of San Fernando, Pampanga, Philippines
| | - E Villar
- Livestock Research Division PCAARRD-DOST, Los Baños, Laguna, Philippines
| | - E L Lopez
- Animal Health Division, Bureau of Animal Industry, Quezon City, Philippines
| | - P J Blackall
- School of Veterinary Science, University of Queensland, Gatton 4343, Queensland, Australia
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Therasa SV, Thirumalai T, Tamilselvan N, David E. In-vivo and ex-vivo inhibition of intestinal glucose uptake: A scope for antihyperglycemia. Journal of Acute Disease 2014. [DOI: 10.1016/s2221-6189(14)60008-1] [Citation(s) in RCA: 6] [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: 11/16/2022] Open
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44
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Maes V, Vettier A, Jaffal A, Dedourge-Geffard O, Delahaut L, Geffard A, Betoulle S, David E. Energy metabolism and pesticides: biochemical and molecular responses to copper in roach Rutilus rutilus. J Xenobiot 2013. [DOI: 10.4081/xeno.2013.s1.e7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Not available
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David E, Kopac J. Aluminum recovery as a product with high added value using aluminum hazardous waste. J Hazard Mater 2013; 261:316-324. [PMID: 23959251 DOI: 10.1016/j.jhazmat.2013.07.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 07/04/2013] [Accepted: 07/18/2013] [Indexed: 06/02/2023]
Abstract
The samples of hazardous aluminum solid waste such as dross were physically and chemically characterized. A relationship between density, porosity and metal content of dross was established. The paper also examines the chemical reactions involving aluminum dross in landfill and the negative consequences. To avoid environmental problems and to recovery the aluminum, a processing method was developed and aluminum was recovered as an added value product such as alumina. This method refers to a process at low temperature, in more stages: acid leaching, purification, precipitation and calcination. At the end of this process aluminum was extracted, first as Al(3+) soluble ions and final as alumina product. The composition of the aluminum dross and alumina powder obtained were measured by applying the leaching tests, using atomic absorption spectrometry (AAS) and chemical analysis. The mineralogical composition of aluminum dross samples and alumina product were determined by X-ray diffraction (XRD) and the morphological characterization was performed by scanning electron microscopy (SEM). The method presented in this work allows the use of hazardous aluminum solid waste as raw material to recover an important fraction from soluble aluminum content as an added value product, alumina, with high grade purity (99.28%).
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Affiliation(s)
- E David
- National Institute for Research and Development for Cryogenic and Isotopic Technologies, Street Uzinei, No. 4, P.O. Râureni, P.O. Box 7, 240050 Rm. Vâlcea, Romania.
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Sänger A, Fretz A, David E. Honig in der Wundbehandlung: Die Hauptwirkung des Zuckers. Akt Dermatol 2013. [DOI: 10.1055/s-0033-1344374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - A. Fretz
- Zentrum für Elektropathologie und Umweltmedizin, Witten
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47
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Thompson C, David E, Freestone M, Robinson C. Ecological Patterns Along Two Alpine Glacial Streams in the Fitzpatrick Wilderness, Wind River Range, USA. WEST N AM NATURALIST 2013. [DOI: 10.3398/064.073.0203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Osman N, Almeida M, Ustá M, Bique C, David E. I281 DESCRIPTION OF THE STRATEGIC PLANNING PROCESS AND ITS IMPACT ON AMOG'S ACTIVITIES. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60311-7] [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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49
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Elumalai EK, David E, Hemachandran J. Bacterial contamination of Indian currency notes (Rupee). Int J Occup Environ Med 2012; 3:204-205. [PMID: 23022872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 07/23/2012] [Indexed: 06/01/2023]
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50
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David E, Kopac J. Hydrolysis of aluminum dross material to achieve zero hazardous waste. J Hazard Mater 2012; 209-210:501-9. [PMID: 22326245 DOI: 10.1016/j.jhazmat.2012.01.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Revised: 01/18/2012] [Accepted: 01/19/2012] [Indexed: 05/14/2023]
Abstract
A simple method with high efficiency for generating high pure hydrogen by hydrolysis in tap water of highly activated aluminum dross is established. Aluminum dross is activated by mechanically milling to particles of about 45 μm. This leads to removal of surface layer of the aluminum particles and creation of a fresh chemically active metal surface. In contact with water the hydrolysis reaction takes place and hydrogen is released. In this process a Zero Waste concept is achieved because the other product of reaction is aluminum oxide hydroxide (AlOOH), which is nature-friendly and can be used to make high quality refractory or calcium aluminate cement. For comparison we also used pure aluminum powder and alkaline tap water solution (NaOH, KOH) at a ratio similar to that of aluminum dross content. The rates of hydrogen generated in hydrolysis reaction of pure aluminum and aluminum dross have been found to be similar. As a result of the experimental setup, a hydrogen generator was designed and assembled. Hydrogen volume generated by hydrolysis reaction was measured. The experimental results obtained reveal that aluminum dross could be economically recycled by hydrolysis process with achieving zero hazardous aluminum dross waste and hydrogen generation.
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Affiliation(s)
- E David
- National Institute for Research and Development for Cryogenic and Isotopic Technologies, P.O Râureni, P.O. Box 7, 240050 Rm. Valcea, Romania.
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