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Blondonnet R, Jabaudon M, Clairefond G, Audard J, Bouvier D, Marceau G, Blanc P, Dechelotte P, Sapin V, Constantin JM. 0853. Elevated levels of soluble rage predict impaired alveolar fluid clearance in a translational mouse model of acute respiratory distress syndrome (ARDS). Intensive Care Med Exp 2014. [PMCID: PMC4796255 DOI: 10.1186/2197-425x-2-s1-p62] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Tavolacci MP, Grigioni S, Richard L, Meyrignac G, Dechelotte P, Ladner J. Risque de troubles du comportement alimentaire chez les étudiants : une problématique de santé publique ? Rev Epidemiol Sante Publique 2014. [DOI: 10.1016/j.respe.2014.06.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Picard M, Pham Dang N, D'Incan M, Mansard S, Dechelotte P, Pereira B, Mondie JM, Barthelemy I. Is BRAF a prognostic factor in stage III skin melanoma? A retrospective study of 72 patients after positive sentinel lymph node dissection. Br J Dermatol 2014; 171:108-14. [PMID: 24602025 DOI: 10.1111/bjd.12939] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND BRAF was identified as an oncogene in skin melanoma in 2002, and since 2011 has been a therapeutic target in the treatment of metastatic melanoma. The role of BRAF mutation in tumour initiation and the disease course remains to be elucidated. OBJECTIVES The main objective of our study was to determine whether there is a relationship between BRAF status and overall survival in patients with a melanoma and a positive sentinel lymph node. We also sought an association between BRAF status and the clinicopathological features of the melanoma. Finally, we looked for a potential heterogeneity of BRAF status in primary and metastatic tumours. METHODS All patients (n = 72) treated for melanoma and with a positive sentinel lymph node at the University Hospital of Clermont-Ferrand, France, between January 2000 and January 2010 were enrolled in the study. We investigated BRAF status in primary melanoma and lymph node metastatic tissue in our molecular pathology laboratory and collected the clinical and survival data. RESULTS Of the 72 patients, 32 had at least one BRAF mutation. There was a statistically significant difference in overall survival between the BRAF-mutated and wild-type populations. The only clinical feature related to BRAF status was metastatic burden. Of the 25 patients in whom we obtained the status in both locations, five had a discordant result. CONCLUSIONS BRAF mutation is an indicator of poor prognosis in patients with stage III melanoma with a positive sentinel lymph node. BRAF status could be used in the staging of this population. BRAF has a role not only in cellular immortalization but also in metastatic spread.
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Chene G, Radosevic-Robin N, Tardieu AS, Cayre A, Raoelfils I, Dechelotte P, Dauplat J, Penault Llorca F. Morphological and immunohistochemical study of ovarian and tubal dysplasia associated with tamoxifen. Eur J Histochem 2014; 58:2251. [PMID: 24998918 PMCID: PMC4083318 DOI: 10.4081/ejh.2014.2251] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 02/27/2014] [Accepted: 03/03/2014] [Indexed: 01/16/2023] Open
Abstract
Ovarian epithelial dysplasia was initially described in material from prophylactic oophorectomies for BReast CAncer gene (BRCA) mutation. Similar histopathological abnormalities have been revealed after ovulation stimulation. Given that tamoxifen (TAM) has a clomid-like effect and is sometimes used to induce ovulation, we studied the morphological features and immunohistochemical expression patterns of neoplasia-associated markers in adnexectomies previously exposed to TAM for breast cancer. We blindly reviewed 173 histopathological slides of adnexectomies according to three groups – oophorectomies associated with TAM exposure (n=42), oophorectomies associated with clomiphene exposure (n=15) and a spontaneously fertile non cancerous control group (n=116). Morphological features (with an ovarian and tubal dysplasia scoring system) and immunohistochemical expression patterns of Ki-67, p53 and Aldehyde dehydrogenase 1 (ALDH1 is an enzyme significantly associated with earlystage ovarian cancer) were evaluated and correlated. Mean tubal dysplasia score was significantly higher in the TAM group and clomiphen group than in controls (respectively 7.8 vs 3.5, P<0.007 and 6.8 vs 3.5, P=0.008). There is no statistical difference for the ovarian score in TAM group in comparison with the control group whereas we found a significant score for clomiphen group (6.5, P=0.009). Increased ALDH1 expression was observed in the two exposed group whereas expression patterns of Ki67 and p53 were moderate. Interestingly, ALDH1 expression was low in non-dysplastic epithelium, high in dysplasia, and constantly low in the two carcinoma. Furthemore, we confirm our previous results showing that ALDH1 may be a useful tissue biomarker in the subtle histopathological diagnosis of tubo-ovarian dysplasia.
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Le Saux E, Chati R, Ghouzali I, Renet S, Dechelotte P, Richard V, Coeffier M, Tamion F, Doguet F. O24 Effet de la glutamine sur la dysfonction endothéliale mésentérique et sur la perméabilité intestinale au cours d’une circulation extra-corporelle chez le rat dénutri. NUTR CLIN METAB 2013. [DOI: 10.1016/s0985-0562(13)70296-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Julia F, Dalle S, Duru G, Balme B, Verger B, Ortonne N, Costes V, Lamant L, Dalac S, Delattre C, Dechelotte P, Courville P, Carlotti A, De Muret A, Fraitag S, Petrella T. Tumeurs à cellules dendritiques plasmacytoïdes blastiques : corrélation clinico-immunohistochimique dans une série de 91 patients. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Jesus P, Achamrah N, Grigioni S, Charles J, Rimbert A, Folope V, Petit A, Dechelotte P, Coeffier M. PP144-MON VALIDITY OF PREDICTIVE EQUATIONS FOR RESTING ENERGY EXPENDITURE ACCORDING TO THE BODY MASS INDEX IN A POPULATION OF 1726 PATIENTS FOLLOWED IN A CLINICAL NUTRITION UNIT. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60455-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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33
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Coatelen J, Abergel A, Albouy-Kissi A, Albouy-Kissi B, Coton JP, Sifre L, Dechelotte P, Joubert Zakeyh J. Conception et validation d’un marqueur morphométrique de la fibrose hépatique. Ann Pathol 2012. [DOI: 10.1016/j.annpat.2012.09.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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34
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Tavolacci MP, Grigioni S, Richard L, Dechelotte P, Ladner J. Binge drinking et comportement à risque chez les étudiants. Rev Epidemiol Sante Publique 2012. [DOI: 10.1016/j.respe.2012.06.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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35
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Beutheu Youmba S, Dechelotte P, Coëffier M. P149 Effets des acides aminés, seuls ou combinés, sur la fonction de barrière de cellules caco-2 polarisées au cours d’un traitement par le méthotrexate. NUTR CLIN METAB 2011. [DOI: 10.1016/s0985-0562(11)70216-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Melchior C, Gourcerol G, Leroi A, Dechelotte P, Lerebours E, Ducrotte P. P121 Malabsorption du fructose et syndrome de l’intestin irritable. NUTR CLIN METAB 2011. [DOI: 10.1016/s0985-0562(11)70188-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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Ziegler F, Codevelle L, Houivet E, Benichou J, Lavoinne A, Dechelotte P. New prognosis inflammatory and nutritional indexes: comparison with the Prognostic Inflammatory and Nutritional Index as reference index. Crit Care 2011. [PMCID: PMC3068427 DOI: 10.1186/cc9918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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38
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Capri Y, Vanlieferinghen P, Boeuf B, Dechelotte P, Hovnanian A, Lecomte B. [A lethal variant of Netherton syndrome in a large inbred family]. Arch Pediatr 2011; 18:294-8. [PMID: 21255986 DOI: 10.1016/j.arcped.2010.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 11/06/2010] [Accepted: 12/15/2010] [Indexed: 10/18/2022]
Abstract
Netherton syndrome is a rare autosomal recessive disorder characterized by the triad of ichthyosiform erythrodermia, typical hair dysplasia, and severe atopic features. The broad range of variable expression of this disease is well described and 20% of complications occur during the neonatal period such as hypernatremic dehydration, electrolyte imbalances, recurrent or severe infections, and failure to thrive. Mutation of the SPINK5 gene has been identified as disease-causing in Netherton syndrome, but the pathophysiology still remains unclear. Almost all SPINK5 mutations result in the absence of the serine-protease inhibitor LEKTI protein in both keratinocytes and lymphocytes. In this study, we report on a severe form of Netherton syndrome observed in three patients within a large inbred Rom family. All of them died in the first months of life despite early treatment. They were found to be homozygous for the c.1431-12G>A SPINK5 gene mutation, which has not been associated with a lethal form of the disease thus far. This family illustrates the extreme phenotype of Netherton disease of neonatal onset. Molecular diagnosis allowed further genetic counseling and prenatal testing during other pregnancies.
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Castres I, Folope V, Dechelotte P, Tourny-Chollet C, Lemaitre F. Quality of Life and Obesity Class Relationships. Int J Sports Med 2010; 31:773-8. [DOI: 10.1055/s-0030-1262830] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Dauplat J, Chene G, Pomel C, Dauplat M, Bouëdec G, Mishellany F, Lagarde N, Bignon Y, Jaffeux P, Aublet-Cuvelier B, Dechelotte P, Pouly J, Penault-Llorca F. Comparison of dysplasia profiles in stimulated ovaries and in those with a genetic risk for ovarian cancer. Eur J Cancer 2009; 45:2977-83. [DOI: 10.1016/j.ejca.2009.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2009] [Revised: 06/09/2009] [Accepted: 06/12/2009] [Indexed: 11/24/2022]
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41
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Chene G, Penault-Llorca F, Le Bouedec G, Mishellany F, Dauplat M, Jaffeux P, Aublet-Cuvelier B, Pouly J, Dechelotte P, Dauplat J. Ovarian epithelial dysplasia after ovulation induction: time and dose effects. Hum Reprod 2008; 24:132-8. [DOI: 10.1093/humrep/den358] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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42
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Coquerel Q, Nilsson I, Blache C, Ibrahim A, Sinno MH, Johansen J, Adriouch S, Boyer O, Hökfelt T, Dechelotte P, Fetissov S. Effect of post-neonatal thymectomy on body weight gain in Swiss mice: The role of regulatory T-cells and the hypothalamic arcuate nucleus. Appetite 2008. [DOI: 10.1016/j.appet.2008.04.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Cotte B, Gallot D, Ledoux-Pilon A, Dechelotte P, Rivoire C, Canis M, Mage G. [The use of ultrasonographic 3D power Doppler to describe an ovarian Sertoli-Leydig cell tumor]. ACTA ACUST UNITED AC 2008; 36:532-5. [PMID: 18462975 DOI: 10.1016/j.gyobfe.2008.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2007] [Accepted: 01/27/2008] [Indexed: 10/22/2022]
Abstract
We report one case of unilateral ovarian Sertoli-Leydig tumor with intermediate grade and heterologous element, in a young woman with clinical and biological typical presentation. We discuss 2D and 3D ultrasonographic and doppler features.
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44
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Guédon C, Ducrotte P, Hochain P, Zalar A, Dechelotte P, Denis P, Colin R. Does percutaneous endoscopic gastrostomy prevent gastro-oesophageal reflux during the enteral feeding of elderly patients? Clin Nutr 2007; 15:179-83. [PMID: 16844031 DOI: 10.1016/s0261-5614(96)80238-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/1995] [Accepted: 04/26/1996] [Indexed: 10/26/2022]
Abstract
Percutaneous endoscopic gastrostomy (PEG) is reported to be a safe method for enteral feeding, although its ability to prevent gastro-oesophageal reflux (GOR) during enteral feeding remains controversial. In 12 elderly patients fed enterally to avoid the risk of tracheal aspiration, we have compared two 24-h oesophageal pH profiles, one recorded when enteral feeding was delivered at first via a nasogastric tube (NGT), and the other via a PEG. The second recording was always performed at least 8 days after gastrostomy placement. Enteral nutrition consisted of 500 ml of a polymeric diet delivered 3 times a day at 08:00, 13:00 and 18:00. After gastrostomy placement, enteral feeding was associated with a pathological acid reflux in 8 out of 12 patients. In all of these 8 patients, GOR was mostly related to a high number of reflux episodes. In 4 out of 8 patients, GOR occurred only during the 3 h following the administration of the nutritive diet. In 4 of the patients, GOR did not occur any more after removal of the NGT, whilst gastrostomy placement was followed by GOR in 5 patients. GOR during enteral feeding via PEG is common in elderly subjects. We have shown that a chronological relationship existed in some patients between the endoscopic procedure and the onset of a pathological GOR.
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45
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Chene G, Darcha C, Dechelotte P, Mage G, Canis M. Malignant degeneration of perineal endometriosis in episiotomy scar, case report and review of the literature. Int J Gynecol Cancer 2007; 17:709-14. [PMID: 17300680 DOI: 10.1111/j.1525-1438.2007.00822.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Although malignant degeneration of cutaneous endometriosis is rare at only 0.3-1% in endometriosis surgical scars, diagnosis and management need to be defined. A case of malignant degeneration of perineal endometriosis is reported, with a review of literature. Physiopathology, epidemiological data, diagnostic and therapeutic methods are discussed for malignant degeneration of cutaneous endometriosis. Any scar lesion that evolves in response to the menstrual cycle should be considered endometriosis until proven otherwise, and thus could require surgical resection, with histological analysis. A history of cutaneous endometriosis with frequent recurrences can indicate malignant degeneration. All cases require long-term clinical follow-up because, despite the rarity of this diagnosis, the delay between benign endometriosis and malignant transformation can vary from a few months to over 40 years.
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46
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Bonnin N, Viennet A, Nezzar H, Dechelotte P, Barthelemy I, Demeocq F, Gabrillargues J, Campagne D, Rigal D, Bacin F. 448 Rhabdomyosarcome palpébral chez un enfant de deux ans. J Fr Ophtalmol 2007. [DOI: 10.1016/s0181-5512(07)80261-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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47
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Souteyrand P, Alquier A, Dechelotte P, Franck F, Tapsoba P, D’incan M. C066 - Étude de la valeur prédictive de la régression tumorale du mélanome de stade I sur l’atteinte du ganglion sentinelle. Ann Dermatol Venereol 2007. [DOI: 10.1016/s0151-9638(07)89098-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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48
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Matsuzaki S, Canis M, Pouly JL, Dechelotte P, Okamura K, Mage G. The macrophage stimulating protein/RON system: a potential novel target for prevention and treatment of endometriosis. Mol Hum Reprod 2005; 11:345-9. [PMID: 15764806 DOI: 10.1093/molehr/gah162] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Our recent DNA microarray analysis using tissue obtained by laser capture microdissection (LCM) identified up-regulation of RON (a tyrosine kinase receptor) during the late secretory phase in eutopic endometrial epithelial cells from patients with deep endometriosis compared with control endometrium from women with macroscopically normal pelvic cavities. In the present study, we further investigated mRNA expression of RON and its ligand, macrophage stimulating protein (MSP), in deep endometriotic lesions, eutopic endometrium from patients with deep endometriosis and control endometrium by using LCM and quantitative real-time RT-PCR. MSP mRNA expression in endometrial epithelial cells was significantly up-regulated in endometriosis patients during the late secretory phase compared with expression in controls. Furthermore, we detected up-regulation of MSP mRNA in ectopic endometrial epithelial cells compared with matched eutopic endometrial epithelial cells within the same patients regardless of the menstrual phase. MSP has an intrinsically dual functional nature through its receptor RON-it is a trophic cytokine preventing apoptosis and a scatter factor promoting invasion, both of which may be necessary for the initial development and growth of endometriosis. The present findings suggest that the MSP/RON system may be involved in the pathophysiology of endometriosis.
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Vallette-Kasic S, Pulichino AM, Gueydan M, Barlier A, David M, Malpuech G, Deal C, Van Vliet G, de Vroede M, Riepe F, Partsch CJ, Sippell W, Berberoglu M, Atasay B, de Zegher F, Kyllo J, Donohoue P, Dechelotte P, Fassnacht M, Noordam K, Dunkel L, Pigeon B, Weill J, Yigit S, Brauner R, Leger J, Heinrich JJ, Enjalbert A, Brue T, Drouin J. A neonatal form of isolated ACTH deficiency frequently associated with Tpit gene mutations. Endocr Res 2004; 30:943-4. [PMID: 15666849 DOI: 10.1081/erc-200044166] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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50
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Matsuzaki S, Canis M, Vaurs-Barrière C, Pouly JL, Boespflug-Tanguy O, Penault-Llorca F, Dechelotte P, Dastugue B, Okamura K, Mage G. DNA microarray analysis of gene expression profiles in deep endometriosis using laser capture microdissection. ACTA ACUST UNITED AC 2004; 10:719-28. [PMID: 15299092 DOI: 10.1093/molehr/gah097] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Endometriosis, a common gynecological disorder that causes infertility and pelvic pain, is defined as the presence of endometrial glands and stroma within extra-uterine sites. However, despite extensive studies its etiology and pathogenesis are not completely understood. Differentially expressed genes were investigated in epithelial and stromal cells from deep endometriosis and matched eutopic endometrium using cDNA microarrays and laser capture microdissection. Validation of results of several up- and down-regulated genes was performed by quantitative real-time RT-PCR. Our data showed that platelet-derived growth factor receptor alpha (PDGFRA), protein kinase C beta1 (PKC beta1) and janus kinase 1 (JAK1) were upregulated, and Sprouty2 and mitogen-activated protein kinase kinase 7 (MKK7) were downregulated in endometriosis stromal cells, suggesting the involvement of the RAS/RAF/MAPK signaling pathway through PDGFRA in endometriosis pathophysiology. In addition, two potential negative regulators of aromatase expression, chicken ovalbumin upstream promoter transcription factor 2 (COUP-TF2) and prostaglandin E2 receptor subtype EP3 (PGE2EP3), were downregulated in endometriosis epithelial cells, which might result in increased local production of estrogen in endometriosis epithelial cells. Furthermore, three potential candidate genes that might be involved in endometriosis related pain were identified: tyrosine kinase receptor B (TRkB) in endometriosis epithelial cells, and serotonin transporter (5HTT) and mu opioid receptor (MOR) in endometriosis stromal cells were all upregulated. One of the candidate genes, MOR, may be involved in a defective immune system in endometriosis. This study has provided new insights into endometriosis pathophysiology.
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