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Mathieu F, Etain B, Daban C, Raymond R, Raust A, Cochet B, Gard S, M'Bailara K, Desage A, Kahn JP, Wajsbrot-Elgrabli O, Cohen RF, Azorin JM, Leboyer M, Bellivier F, Scott J, Henry C. Affect intensity measure in bipolar disorders: a multidimensional approach. J Affect Disord 2014; 157:8-13. [PMID: 24581821 DOI: 10.1016/j.jad.2013.12.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 12/19/2013] [Accepted: 12/19/2013] [Indexed: 12/20/2022]
Abstract
BACKGROUND Emotional dysregulation, characterized by high levels of both arousal and intensity of emotional responses, is a core feature of bipolar disorders (BDs). In non-clinical populations, the 40-item Affect Intensity Measure (AIM) can be used to assess the different dimensions of emotional reactivity. METHODS We analyzed the factor structure of the AIM in a sample of 310 euthymic patients with BD using Principal Component Analysis and examined associations between AIM sub-scale scores and demographic and illness characteristics. RESULTS The French translation of the AIM demonstrated good reliability. A four-factor solution similar to that reported in non-clinical samples (Positive Affectivity, Unpeacefulness [lack of Serenity], Negative Reactivity, Negative Intensity), explained 47% of the total variance. Age and gender were associated with Unpeacefulness and Negative reactivity respectively. 'Unpeacefulness' was also positively associated with psychotic symptoms at onset (p=0.0006), but negatively associated with co-morbid substance misuse (p=0.008). Negative Intensity was positively associated with social phobia (p=0.0005). LIMITATIONS We cannot definitively exclude a lack of statistical power to classify all AIM items. Euthymia was carefully defined, but a degree of 'contamination' of the self-reported levels of emotion reactivity may occur because of subsyndromal BD symptoms. It was not feasible to control for the possible impact of on-going treatments. CONCLUSIONS The AIM scale appears to be a useful measure of emotional reactivity and intensity in a clinical sample of patients with BD, suggesting it can be used in addition to other markers of BD characteristics and sub-types.
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Geoffroy PA, Bellivier F, Henry C. [Treatment of manic phases of bipolar disorder: critical synthesis of international guidelines]. Encephale 2014; 40:330-7. [PMID: 24513018 DOI: 10.1016/j.encep.2013.10.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 10/18/2013] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Bipolar disorder (BD) is the seventh leading cause of disability per year of life among all diseases in the population aged 15 to 44. It is a group of heterogeneous diseases, with frequent comorbid psychiatric or somatic disorders, variable treatment response and frequent residual symptoms between episodes. The major impairment associated with this disorder is related to the high relapse and recurrence rates, the functional impact of comorbidities and cognitive impairment between episodes. The prognosis of the disease relies on the efficacy of relapse and recurrence prevention interventions. Given the heterogeneity of the disorder, relapse and recurrence prevention needs to develop a personalized care plan from the start of the acute phase. In such a complex situation, guideline-driven algorithms of decision are known to improve overall care of patients with bipolar disorder, compared to standard treatment decisions. Although guidelines do not account for all the situations encountered with patients, this systematic approach contributes to the development of personalized medicine. METHODS We present a critical review of recent international recommendations for the management of manic phases. We summarize treatment options that reach consensus (monotherapy and combination therapy) and comment on options that differ across guidelines. RESULTS The synthesis of recent international guidelines shows a consensus for the initial treatment for manic phases. For acute and long-term management, the anti-manic drugs proposed are traditional mood stabilizers (lithium or valproate) and atypical antipsychotics (APA - olanzapine, risperidone, aripiprazole and quetiapine). All guidelines indicate stopping antidepressant drugs during manic phases. International guidelines also present with some differences. First, as monotherapy is often non sufficient in clinical practice, combination therapy with a traditional mood stabilizer and an APA are disputed either in first line treatment for severe cases or in second line. Second, mixed episodes treatment is not consensual either and some guidelines propose in first line valproate, carbamazepine and some APA, and advice not to use lithium. On the other hand, some guidelines do not propose specific treatment for mixed episodes and group them with manic episodes management. Duration of treatment is unclear. CONCLUSION Guidelines utilization has shown that the systemic use by clinicians of decision algorithms in comparison to "treatment as usual" modality improves the overall care of patients with BD. Future data from cohorts of patients seem necessary to complement the existing data from clinical trials. These cohort studies will help to take into account the different individual profiles of BD and thus may help to propose a more personalized medicine.
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Oliveira J, Etain B, Boukouaci W, Amokrane K, Bennabi M, Bellivier F, Henry C, Kahn J, Charron D, Krishnamoorthy R, Leboyer M, Tamouza R. EPA-0671 – Association study between toll-like receptors 2 and 4 single nucleotide polymorphisms and bipolar disorder. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78039-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Geoffroy PA, Boudebesse C, Henrion A, Jamain S, Henry C, Leboyer M, Bellivier F, Etain B. An ASMT variant associated with bipolar disorder influences sleep and circadian rhythms: a pilot study. GENES BRAIN AND BEHAVIOR 2013; 13:299-304. [DOI: 10.1111/gbb.12103] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 10/21/2013] [Accepted: 11/08/2013] [Indexed: 11/28/2022]
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Healy L, Moloney E, O'Connor M, Henry C, Timmons S. The potential lost hospital income from miscoded emergency department boarders in Ireland. Ir J Med Sci 2013; 183:215-7. [PMID: 23949185 DOI: 10.1007/s11845-013-0992-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 07/17/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND Emergency department (ED) boarders, namely patients who have been admitted under an in-patient service but remain on a trolley in the ED, have long been a problem in the Irish healthcare system. METHODS We conducted a retrospective analysis of all ED boarders in Cork University Hospital (CUH) for a 6-month period from January to July 2011. Data were obtained from the Hospital In-Patient Enquiry Office (HIPE). The income generated by the hospital for a subset of these patients (January and February attendances) was obtained from the Finance Office in the hospital, based on diagnoses as recorded on the HIPE system. A convenience sample of two-thirds of the 39 acute hospitals nationally was surveyed to ascertain whether ED boarders were coded by individual HIPE offices as hospital in-patients or as ED attendees. RESULTS A total of 806 patients were admitted to an in-patient service from January to July 2011 in CUH and subsequently discharged, having completed their entire stay in the ED. The income generated by a sub-sample of 228 patients (January and February ED boarders) was determined. The hospital was remunerated by <euro>685,111 for these patients, i.e. an average income of <euro>3,098 per patient. Only 8 hospitals of the 27 surveyed hospitals coded overnight ED Boarders as in-patients and were thus able to request income for these patients appropriately. CONCLUSION Discrepancies in coding of ED boarders may result in significant revenue losses for certain hospitals.
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Boudebesse C, Lajnef M, Geoffroy PA, Bellivier F, Nieto I, Gard S, Olié E, Azorin JM, Kahn JP, Bougerol T, Passerieux C, Aubin V, Milhiet V, Folkard S, Leboyer M, Henry C, Etain B. Chronotypes of Bipolar Patients in Remission: Validation of the French Version of the Circadian Type Inventory in the FACE-BD Sample. Chronobiol Int 2013; 30:1042-9. [DOI: 10.3109/07420528.2013.798330] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Drury SS, Brett ZH, Henry C, Scheeringa M. The association of a novel haplotype in the dopamine transporter with preschool age posttraumatic stress disorder. J Child Adolesc Psychopharmacol 2013; 23:236-43. [PMID: 23647133 PMCID: PMC3657285 DOI: 10.1089/cap.2012.0072] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Significant evidence supports a genetic contribution to the development of posttraumatic stress disorder (PTSD). Three previous studies have demonstrated an association between PTSD and the nine repeat allele of the 3' untranslated region (3'UTR) variable number tandem repeat (VNTR) in the dopamine transporter (DAT, rs28363170). Recently a novel, functionally significant C/T single-nucleotide polymorphism (SNP) in the 3'UTR (rs27072) with putative interactions with the 3'VNTR, has been identified. To provide enhanced support for the role of DAT and striatal dopamine regulation in the development of PTSD, this study examined the impact of a haplotype defined by the C allele of rs27072 and the nine repeat allele of the 3'VNTR on PTSD diagnosis in young trauma-exposed children. METHODS DAT haplotypes were determined in 150 trauma-exposed 3-6 year-old children. PTSD was assessed with a semistructured interview. After excluding double heterozygotes, analysis was performed on 143 total subjects. Haplotype was examined in relation to categorical and continuous measures of PTSD, controlling for trauma type and race. Additional analysis within the two largest race categories was performed, as other means of controlling for ethnic stratification were not available. RESULTS The number of haplotypes (0, 1, or 2) defined by the presence of the nine repeat allele of rs28363170 (VNTR in the 3'UTR) and the C allele of rs27072 (SNP in the 3'UTR) was significantly associated with both the diagnosis of PTSD and total PTSD symptoms. Specifically, children with one or two copies of the haplotype had significantly more PTSD symptoms and were more likely to be diagnosed with PTSD than were children without this haplotype. CONCLUSIONS These findings extend previous findings associating genetic variation in the DAT with PTSD. The association of a haplotype in DAT with PTSD provides incremental traction for a model of genetic vulnerability to PTSD, a specific underlying mechanism implicating striatal dopamine regulation, and insight into potential future personalized interventions.
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Drancourt N, Etain B, Lajnef M, Henry C, Raust A, Cochet B, Mathieu F, Gard S, Mbailara K, Zanouy L, Kahn JP, Cohen RF, Wajsbrot-Elgrabli O, Leboyer M, Scott J, Bellivier F. Duration of untreated bipolar disorder: missed opportunities on the long road to optimal treatment. Acta Psychiatr Scand 2013; 127:136-44. [PMID: 22901015 DOI: 10.1111/j.1600-0447.2012.01917.x] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Duration of untreated illness represents a potentially modifiable component of any diagnosis-treatment pathway. In bipolar disorder (BD), this concept has rarely been systematically defined or not been applied to large clinically representative samples. METHOD In a well-characterized sample of 501 patients with BD, we estimated the duration of untreated bipolar disorder (DUB: the interval between the first major mood episode and first treatment with a mood stabilizer). Associations between DUB and clinical onset and the temporal sequence of key clinical milestones were examined. RESULTS The mean DUB was 9.6 years (SD 9.7; median 6). The median DUB for those with a hypomanic onset (14.5 years) exceeded that for depressive (13 years) and manic onset (8 years). Early onset BD cases have the longest DUB (P < 0.0001). An extended DUB was associated with more mood episodes (P < 0.0001), more suicidal behaviour (P = 0.0003) and a trend towards greater lifetime mood instability (e.g. rapid cycling, possible antidepressant-induced mania). CONCLUSION Duration of untreated bipolar disorder (DUB) will only be significantly reduced by more aggressive case finding strategies. Reliable diagnosis (especially for BD-II) and/or instigation of recommended treatments is currently delayed by insufficient awareness of the early, polymorphous presentations of BD, lack of systematic screening and/or failure to follow established guidelines.
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Etain B, Mathieu F, Liquet S, Raust A, Cochet B, Richard JR, Gard S, Zanouy L, Kahn JP, Cohen RF, Bougerol T, Henry C, Leboyer M, Bellivier F. Clinical features associated with trait-impulsiveness in euthymic bipolar disorder patients. J Affect Disord 2013; 144:240-7. [PMID: 22901401 DOI: 10.1016/j.jad.2012.07.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 06/30/2012] [Accepted: 07/01/2012] [Indexed: 01/10/2023]
Abstract
BACKGROUND A strong association has been reported between trait-impulsiveness and bipolar disorder (BD). Much attention has been focused on this association, but subgroup analysis has generated conflicting results, raising questions about the role of trait-impulsiveness in suicidal behavior and substance misuse in bipolar patients. METHOD We compared Barratt Impulsiveness Scale-10 scores between 385 euthymic bipolar patients and 185 healthy controls. We then investigated possible association between impulsiveness scores and the following clinical characteristics: suicide attempt (SA), lifetime alcohol/cannabis misuse, rapid cycling and mixed episodes. RESULTS Bipolar patients and healthy controls had significantly different BIS-10 total score and subscores (motor, attentional and nonplanning impulsiveness) (all p values <0.0001). No association was observed between BIS-10 total score, personal history of SA, number of SA, age at first SA and history of violent SA. Higher BIS-10 total scores were associated with alcohol misuse (p=0.005), cannabis misuse (p<0.0001), with an additive effect for these two substances (p=0.005). Higher BIS-10 total scores were also associated with rapid cycling (p=0.006) and history of mixed episodes (p=0.002), with an additive effect of these two variables (p=0.0006). LIMITATIONS We used only one clinical measurement of impulsiveness and did not carry out cognitive assessment. CONCLUSION This study demonstrates that trait-impulsiveness may be considered as a dimensional feature associated with BD and with a more severe clinical expression of the disease, characterized by a history of substance misuse, rapid cycling and mixed episodes. We found no association between impulsiveness and SA characteristics in bipolar patients, confirming some previous negative results.
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Icick R, Guillaume S, Gard S, Desage A, Barde M, Henry C, Bellivier F. 803 – Correlates of cannabis use disorders among bipolar outpatients enrolled in the bipolar expert centers french network. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)75989-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Brichant-Petitjean C, Sportiche S, Etain B, Henry C, Kahn JP, Azorin JM, Marion L, Bellivier F. 1476 – Factors associated with lifetime antidepressant-induced mania in bipolar disorder patients. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)76502-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Seyller M, Olié E, Chaib L, Henry C, Courtet P. 1776 – Clinical and cognitive correlates of suicide attempts in bipolar disorder. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)76752-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Sportiche S, Brichant-Petitjean C, Etain B, Henry C, Kahn JP, Gard S, Bellivier F. 1732 – Characteristics associated with lithium response in bipolar I and II disorders. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)76712-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Henry C, Geslin C, Blanchet A, Nicolazzi C, Garcia G, Vincent L, Blanc V, Tabah-Fisch I, Chiron M. 325 MM-121 (SAR256212), an Anti-ErbB3 Monoclonal Antibody, Shows Synergistic Tumor Growth Inhibition in Combination with a Pan-PI3K Inhibitor or a Microtubule Inhibitor Through ErbB3 Expression Modulation. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72123-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cebo C, Lopez C, Henry C, Beauvallet C, Ménard O, Bevilacqua C, Bouvier F, Caillat H, Martin P. Goat α(s1)-casein genotype affects milk fat globule physicochemical properties and the composition of the milk fat globule membrane. J Dairy Sci 2012; 95:6215-29. [PMID: 22921619 DOI: 10.3168/jds.2011-5233] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Accepted: 06/21/2012] [Indexed: 01/05/2023]
Abstract
Milk fat secretion is a complex process that initiates in the endoplasmic reticulum of the mammary epithelial cell by the budding of lipid droplets. Lipid droplets are finally released as fat globules in milk enveloped by the apical plasma membrane of the mammary epithelial cell. The milk fat globule membrane (MFGM) thus comprises membrane-specific proteins and polar lipids (glycerophospholipids and sphingolipids) surrounding a core of neutral lipids (mainly triacylglycerols and cholesterol esters). We have recently described major proteins of the MFGM in the goat and we have highlighted prominent differences between goats and bovine species, especially regarding lactadherin, a major MFGM protein. Here, we show that, in the goat species, the well-documented genetic polymorphism at the α(s1)-casein (CSN1S1) locus affects both structure and composition of milk fat globules. We first evidenced that both milk fat globule size and ζ-potential are related to the α(s1)-casein genotype. At midlactation, goats displaying strong genotypes for α(s1)-casein (A/A goats) produce larger fat globules than goats with a null genotype at the CSN1S1 locus (O/O goats). A linear relationship (R(2)=0.75) between fat content (g/kg) in the milk and diameter of fat globules (μm) was established. Moreover, we found significant differences with regard to MFGM composition (including both polar lipids and MFGM proteins) from goats with extreme genotype at the CSN1S1 locus. At midlactation, the amount of polar lipids is significantly higher in the MFGM from goats with null genotypes for α(s1)-casein (O/O goats; 5.97±0.11mg/g of fat; mean ± standard deviation) than in the MFGM from goats with strong genotypes for α(s1)-casein (A/A goats; 3.96±0.12mg/g of fat; mean ± standard deviation). Two MFGM-associated proteins, namely lactadherin and stomatin, are also significantly upregulated in the MFGM from goats with null genotype for α(s1)-casein at early lactation. Our findings are discussed with regard to techno-functional properties and nutritional value of goat milk. In addition, the genetic polymorphism in the goat species appears to be a tool to provide clues to the lipid secretion pathways in the mammary epithelial cell.
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Cebo C, Rebours E, Henry C, Makhzami S, Cosette P, Martin P. Identification of major milk fat globule membrane proteins from pony mare milk highlights the molecular diversity of lactadherin across species. J Dairy Sci 2012; 95:1085-98. [PMID: 22365192 DOI: 10.3168/jds.2011-4455] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Accepted: 11/13/2011] [Indexed: 11/19/2022]
Abstract
Although several studies have been devoted to the colloidal and soluble protein fractions of mare milk (caseins and whey proteins), to date little is known about the milk fat globule membrane (MFGM) protein fraction from mare milk. The objective of this study was thus to describe MFGM proteins from Equidae milk and to compare those proteins to already described MFGM proteins from cow and goat milk. Major MFGM proteins (namely, xanthine oxidase, butyrophilin, lactadherin, and adipophilin) already described in cow or goat milk were identified in mare milk using mass spectrometry. However, species-specific peculiarities were observed for 2 MFGM proteins: butyrophilin and lactadherin. A highly glycosylated 70-kDa protein was characterized for equine butyrophilin, whereas proteins of 64 and 67 kDa were characterized for cow and goat butyrophilin, respectively. Prominent differences across species were highlighted for lactadherin. Indeed, whereas 1 or 2 polypeptide chains were identified, respectively, by peptide mass fingerprinting matrix-assisted laser desorption/ionization-time of flight analysis for caprine and bovine lactadherin, 4 isoforms (60, 57, 48, and 45 kDa) for lactadherin from mare milk were identified by 10% sodium dodecyl sulfate-PAGE. Polymerase chain reaction experiments on lactadherin transcripts isolated from milk fat globules revealed the existence of 2 distinct lactadherin transcripts in the horse mammary gland. Cloning and sequencing of both transcripts encoding lactadherin showed an alternative use of a cryptic splice site located at the end of intron 5 of the equine lactadherin-encoding gene. This event results in the occurrence of an additional alanine (A) residue in the protein that disrupts a putative atypical N-glycosylation site (VNGC/VNAGC) described in human lactadherin. Liquid chromatography coupled with tandem mass spectrometry analyses confirmed the existence of both lactadherin variants in mare MFGM. We show here that lactadherin from Equidae milk is much more complex than that from Bovidae milk (i.e., cow and goat milk), therefore raising questions regarding the precise function of these different isoforms, if any, in the equine mammary gland.
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Parmentier C, Etain B, Yon L, Misson H, Mathieu F, Lajnef M, Cochet B, Raust A, Kahn JP, Wajsbrot-Elgrabli O, Cohen R, Henry C, Leboyer M, Bellivier F. Clinical and dimensional characteristics of euthymic bipolar patients with or without suicidal behavior. Eur Psychiatry 2011; 27:570-6. [PMID: 21978427 DOI: 10.1016/j.eurpsy.2011.05.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2010] [Revised: 05/13/2011] [Accepted: 05/26/2011] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The clinical and dimensional features associated with suicidal behaviour in bipolar patients during euthymic states are not well characterised. METHODS In a sample of 652 euthymic bipolar patients, we assessed clinical features with the Diagnostic Interview for Genetics Studies (DIGS) and dimensional characteristics with questionnaires measuring impulsivity/hostility and affective lability/intensity. Bipolar patients with and without suicidal behaviour were compared for these clinical and dimensional variables. RESULTS Of the 652 subjects, 42.9% had experienced at least one suicide attempt. Lifetime history of suicidal behaviour was associated with being a woman, a history of head injury, tobacco misuse and indicators of severity of bipolar disorder including early age at onset, high number of depressive episodes, positive history of rapid cycling, alcohol misuse and social phobia. Indirect hostility and irritability were dimensional characteristics associated with suicidal behaviour in bipolar patients, whereas impulsivity and affective lability/intensity were not associated with suicidal behaviour. LIMITATIONS This study had a retrospective design with no replication sample. CONCLUSIONS Bipolar patients with earlier onset, mood instability (large number of depressive episodes, rapid cycling) and/or particular addictive and anxiety comorbid disorders might be at high risk of suicidal behaviour. In addition, hostility dimensions (indirect hostility and irritability), may be trait components associated with suicidal behaviour in euthymic bipolar patients.
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Le Nué R, Marcellin L, Ripepi M, Henry C, Kretz JM, Geiss S. Conservative treatment of metanephric adenoma. A case report and review of the literature. J Pediatr Urol 2011; 7:399-403. [PMID: 21220212 DOI: 10.1016/j.jpurol.2010.09.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Accepted: 09/16/2010] [Indexed: 01/08/2023]
Abstract
Metanephric adenoma (MA) is a rare kidney tumor, especially in children, with an excellent prognosis and frequent association with polycythemia. We report the case of a 4-year-old girl presenting a MA revealed by polycythemia. Any secondary polycythemia requires checking for a possible kidney tumor even when the erythropoietin level is not elevated. MA is an exclusively epithelial tumor that can be similar to nephroblastoma or papillary renal cell carcinoma; therefore, it requires strict histopathological analysis. There are few radiological characteristics of MA: well circumscribed tumor, slightly enhanced after the injection of an intravenous contrast medium on computed tomography scan or magnetic resonance imaging. Diagnosis can be supported by core-needle kidney biopsy after hemostasis check, following two published cases of associated acquired von Willebrand disease. Chemotherapy can then be avoided and first-line conservative surgical treatment by partial nephrectomy can be considered, as in our patient's case. However, the marginal resection raised the question of frozen sections analysis of the margins. We recommend thorough follow-up visits, combining clinical examination, ultrasonography and, in the case of polycythemia, biological assays.
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Fiocchi S, Selting K, Rosenberg M, Kolli P, Lenaz G, Henry C. An Open-Label, Dose-Escalating Phase I Study of Elsamitrucin (SPI 28090) in Treatment of Malignant Solid Tumors in Dogs. J Vet Intern Med 2011; 25:897-902. [DOI: 10.1111/j.1939-1676.2011.0752.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Seymour J, Henry C, Sherwen E. Developing guidance in ACP for health and social care staff: experiences from the UK. BMJ Support Palliat Care 2011. [DOI: 10.1136/bmjspcare-2011-000053.51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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London C, Mathie T, Stingle N, Clifford C, Haney S, Klein MK, Beaver L, Vickery K, Vail DM, Hershey B, Ettinger S, Vaughan A, Alvarez F, Hillman L, Kiselow M, Thamm D, Higginbotham ML, Gauthier M, Krick E, Phillips B, Ladue T, Jones P, Bryan J, Gill V, Novasad A, Fulton L, Carreras J, McNeill C, Henry C, Gillings S. Preliminary evidence for biologic activity of toceranib phosphate (Palladia(®)) in solid tumours. Vet Comp Oncol 2011; 10:194-205. [PMID: 22236194 DOI: 10.1111/j.1476-5829.2011.00275.x] [Citation(s) in RCA: 159] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The purpose of this study was to provide an initial assessment of the potential biologic activity of toceranib phosphate (Palladia®, Pfizer Animal Health, Madison, NJ, USA) in select solid tumours in dogs. Cases in which toceranib was used to treat dogs with apocrine gland anal sac adenocarcinoma (AGASACA), metastatic osteosarcoma (OSA), thyroid carcinoma, head and neck carcinoma and nasal carcinoma were included. Clinical benefit (CB) was observed in 63/85 (74%) dogs including 28/32 AGASACA [8 partial response (PR), 20 stable disease (SD)], 11/23 OSAs (1 PR and 10 SD), 12/15 thyroid carcinomas (4 PR and 8 SD), 7/8 head and neck carcinomas [1 complete response (CR), 5 PR and 1 SD] and 5/7 (1 CR and 4 SD) nasal carcinomas. For dogs experiencing CB, the median dose of toceranib was 2.8 mg kg(-1) , 36/63 (58.7%) were dosed on a Monday/Wednesday/Friday basis and 47/63 (74.6%) were treated 4 months or longer. Although these data provide preliminary evidence that toceranib exhibits CB in dogs with certain solid tumours, future prospective studies are necessary to define its true activity.
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Heath CA, Cooper SA, Murray K, Lowman A, Henry C, MacLeod MA, Stewart G, Zeidler M, McKenzie JM, Knight RSG, Will RG. Diagnosing variant Creutzfeldt-Jakob disease: a retrospective analysis of the first 150 cases in the UK. J Neurol Neurosurg Psychiatry 2011; 82:646-51. [PMID: 21172857 DOI: 10.1136/jnnp.2010.232264] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Establishing an early clinical diagnosis in variant Creutzfeldt-Jakob disease (vCJD) can be difficult, resulting in extended periods of uncertainty for many families and sometimes a view that patients have been subjected to unnecessary investigations. This issue is accentuated by the progressive nature of vCJD and by the difficulty in achieving a confident clinical diagnosis before an advanced stage of illness. Although diagnostic delay may be a result of the non-specific early clinical features, a systematic analysis of the process of diagnosis was undertaken, with the aim of trying to achieve earlier diagnosis of vCJD. METHODS Retrospective case file analysis was undertaken of the first 150 definite and clinically probable cases of vCJD identified by the UK surveillance system. RESULTS There is a significant interval between illness onset and presentation to a primary care physician, which is influenced by the nature of the initial clinical features. Neurological review is invariably sought following the development of clinical signs and a diagnosis is then established relatively quickly. Despite the progressive clinical course, a confident clinical diagnosis is not usually achieved until a relatively advanced stage of illness (mean time to diagnosis 10.5 months) with a more rapid clinical progression accounting for those cases diagnosed earlier after symptom onset. CONCLUSIONS Early clinical diagnosis in vCJD is not possible in the great majority of cases because of non-specific initial symptoms. Once neurological signs develop, a diagnosis is usually made promptly but this is often at a relatively advanced stage of illness. The inherent delays in the diagnosis of vCJD have implications for those involved in both public health and therapeutics.
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Milpied P, Dubois R, Roussel P, Henry C, Dreyfus G. Arrhythmia Discrimination in Implantable Cardioverter Defibrillators Using Support Vector Machines Applied to a New Representation of Electrograms. IEEE Trans Biomed Eng 2011; 58:1797-803. [DOI: 10.1109/tbme.2011.2117424] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Dulak AM, Gubish CT, Stabile LP, Henry C, Siegfried JM. HGF-independent potentiation of EGFR action by c-Met. Oncogene 2011; 30:3625-35. [PMID: 21423210 PMCID: PMC3126872 DOI: 10.1038/onc.2011.84] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The c-Met receptor is a potential therapeutic target for non-small cell lung cancer (NSCLC). Signaling interactions between c-Met and the mutant Epidermal Growth Factor Receptor (EGFR) have been studied extensively, but signaling intermediates and biological consequences of lateral signaling to c-Met in EGFR wild-type tumors is minimally understood. Our observations indicate that delayed c-Met activation in NSCLC cell lines is initiated by wild-type EGFR, the receptor most often found in NSCLC tumors. EGFR ligands induce accumulation of activated c-Met which begins at 8 h continues for 48 h. This effect is accompanied by an increase in c-Met expression and phosphorylation of critical c-Met tyrosine residues without activation of MAPK or Akt. Gene transcription is required for delayed c-Met activation; however, phosphorylation of c-Met by EGFR occurs without production of HGF or another secreted factor, supporting a ligand-independent mechanism. Lateral signaling is blocked by two selective c-Met tyrosine kinase inhibitors (TKIs), PF2341066 and SU11274, or with gefitinib, an EGFR TKI, suggesting kinase activity of both receptors is required for this effect. Prolonged c-Src phosphorylation is observed, and c-Src pathway is essential for EGFR to c-Met communication. Pre-treatment with pan-SFK inhibitors, PP2 and dasatinib, abolishes delayed c-Met phosphorylation. A c-Src dominant-negative construct reduces EGF-induced c-Met phosphorylation compared to control, further, confirming a c-Src requirement. Inhibition of c-Met with PF2341066 and siRNA decreases EGF-induced phenotypes of invasion by ~86% and motility by ~81%, suggesting that a novel form of c-Met activation is utilized by EGFR to maximize these biological effects. Combined targeting of c-Met and EGFR leads to increased xenograft anti-tumor activity, demonstrating that inhibition of downstream and lateral signaling from the EGFR-c-Src-c-Met axis might be effective in treatment of NSCLC.
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Henry C. European Network of Bipolar Research Expert Centres (ENBREC): an overview of the project. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)73916-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
ENBREC (European Network of Bipolar Research Expert Centres) is a disease-oriented network designed to set up a EU-wide network of expert centres, specialized in research and care in bipolar disorders. The European added value is to share expertise in the different fields of research and to have access to large cohorts of patient. It is an FP7 project whith 6 countries involved.ENBREC will provide an EU-integrated facility for research on epidemiology, diagnosis, treatment and on the mechanisms of bipolar disorders.A preliminary step was to develop a computerized medical file to collect in a same manner a minimum set of clinical data to perform observational studies. We also include a common cognitive battery. Patients will be re-assessed every 6 months. This systematic assessment is the minimum required to be involved as an expert centre of the network. In parallel, we will collect DNA samples to perform genetic studies on well-characterized patients. Moreover, data from scanners performed for diagnostic purpose will be pooled to provide a large sample of structural brain pictures.Other modules are proposed in the framework of the expert centres for observational studies with a high frequency of assessment to be able to capture more detailed description in psychopathological variables and in treatment response.This cohort will allow selecting and recruiting patients for interventional studies or in specific programmes of research. Large cohorts of well-characterized patients are needed to improve the knowledge of this heterogeneous disease and to translate research outcomes into health improvements.
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