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Optical coherence tomography angiography at the acute phase of optic disc edema

Eye and Vision 2018年第1期5卷 144-150页

作者： marie-Bénédicte Rougier m.lanie le goff Jean-François Korobelnik Service d’Ophtalmologie CHU de BordeauxBordeauxFrance Bordeaux Population Health Research Center Team LEHAUniversity BordeauxINSERMUMR 1219F-33000 BordeauxFrance

Background:The differential diagnosis of optic disc edema at the acute phase can be *** angiography(OCTA)is a new technology allowing the visualization of the peripapillary vascular network and optic disc *** peripapillary network alterations of glaucoma and chronic non-arteritic anterior ischemic optic neuropathy(NAION)were ***,no OCTA studies on acute optic disc edema from various *** aim of this project was to use OCTA to demonstrate the vascular changes the optic nerve head of various types of optic disc edema at the acute ***:In this retrospective study,patients with non-arteritic anterior ischemic optic neuropathy(NAION),papillitis or papilledema were *** patient was imaged using the AngioPlex^(Tm)CIRRUS^(Tm)HD-OCT device(model 5000,Carl Zeiss meditec,Inc.,Dublin,USA)with a scanning area of 6×6 mm^(2) centered on the optic disc.A morphological analysis of the peripapillary network was *** some patients with unilateral optic disc edema,a quantitative analysis was performed using a swept-source OCT-A system(PleX®Elite 9000,Carl Zeiss meditec,Inc.,Dublin,USA).Vessel perfusion density and flux index of the peripapillary area were ***:Eight eyes with NAION(4 patients),12 eyes with papillitis(6 patients)and 25 eyes with papilledema(13 patients)were *** apparent disappearance or moderate pattern alteration of the peripapillary capillary vessels were observed in patients with NAION or papillitis,*** papilledema,the capillaries at the surface of the optic disc were dilated and tortuous,but no peripapillary network pattern changes were *** quantitative analysis did not show any difference of peripapillary network between NAION and healthy *** papillitis,the flux index was higher in inflammatory eyes compared to the healthy eyes in average(p=0.03).Conclusion:At the acute phase,the morphological analysis of OCT-A appeared to be more useful than the q

关键词： Optical coherence tomography angiography Optic nerve head Edema NAION microvascular network And morphology

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Cytotoxic Properties on Cervical and Liver Cancer Cells of Two Plant Recipes from Burkina Faso

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Journal of Biosciences and medicines 2024年第6期12卷 216-229页

作者： Estelle Ouédraogo Bagora Bayala Théodora mahoukèdè Zohoncon Samiratou Ouédraogo Olga m.lanie Lompo Essi Etonam Dovo Jean-marie Compaoré Albert Théophane Yonli Jacques Simpore Laboratory of molecular Biology and Genetics (LABIOGENE) Joseph KI-ZERBO University Ouagadougou Burkina Faso Center of Biomolecular Research Pietro Annigoni (CERBA) Ouagadougou Burkina Faso Ecole Normale Suprieure Koudougou Burkina Faso Hspital Saint Camille of Ouagadougou (HOSCO) Ouagadougou Burkina Faso Faculty of Health University Saint Thomas dAquin (USTA) Ouagadougou Burkina Faso Chair Research and Action against Cancer Department of Public Health Training and Research Unit in Health Sciences Joseph KI-ZERBO University Ouagadougou Burkina Faso National Population Health Observatory National Institute of Public Health Ouagadougou Burkina Faso The Department of Epidemiology Biostatistics and Occupational Health School of Population and Global Health Montral Canada Laboratory of Pathological Anatomy and Cytology University Joseph KI-ZERBO Ouagadougou Burkina Faso TIIG LA TIIm Ouagadougou Burkina Faso

Cancer is one of the deadliest diseases in developing countries. In recent years, natural plant-based compounds have been used in the search for drugs to combat numerous diseases, including cancer. In this study, we evaluate the cytotoxic properties of paanfo tiben 1 and paanfo tiben 2, two traditional herbal formulations from Burkina Faso used in the treatment of cancer in Burkina Faso. To this end, the recipes were infused and freeze-dried. The dry extracts obtained were used to determine total phenolics and flavonoids content, assess antioxidant activity using the DPPH, ABTS and FRAP methods, evaluate anti-inflammatory properties by inhibiting 15-LOX, COX 1 and 2, and assess cytotoxic activity on HeLa cervical cancer and HePG2 liver cancer cell lines using the mTT test. The paanfo tiben 1 recipe showed the highest levels of total phenolics and flavonoids, as well as the best antioxidant activities, with IC50 values of 21.020 ± 0.6 µg/ml and 22.94 ± 0.57 µg/ml for DPPH and ABTS, and 165.15 mm EAA/mg dry extract for FRAP. It also exhibited the best cytotoxic activity with IC50 values of 112.02 ± 0.025 µg/ml on HeLa cells and 80.67 ± 6.08 µg/ml on HepG2 cells. On the other hand, paanfo tiben 2 exhibited the best anti-inflammatory activities through inhibition of 15-LOX and COX 1, with inhibition percentages at 100 µg/ml of 32.523% and 24.717 % respectively. These results could justify the traditional use of these two recipes by traditional health practitioners in the treatment of cancer sufferers in Burkina Faso.

关键词： Antioxidant Anti-Inflammatory Cytotoxicity Paanfo Tiben Burkina

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HPV/HBV or HPV/HCV Co-Infections in Women Treated for Chronic Hepatitis at Hôpital Saint Camille in Ouagadougou, Burkina Faso

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American Journal of molecular Biology 2024年第1期14卷 1-12页

作者： Estelle Ouédraogo Théodora mahoukèdè Zohoncon Bagora Bayala Prosper Bado Rose P. Clémence Da Rogomenoma Alice Ouedraogo Ina marie Angèle Traoré Punya Akouélé Kuassi-Kpede Samiratou Ouédraogo Essi Etonam Dovo Lassina Traoré Albert Théophane Yonli Florencia Wendkuuni Djigma Olga m.lanie Lompo Jacques Simpore Laboratory of molecular Biology and Genetics (LABIOGENE) University Joseph KI-ZERBO Ouagadougou Burkina Faso Centre of Biomolecular Research Pietro Annigoni (CERBA) Ouagadougou Burkina Faso Hô spital Saint Camille of Ouagadougou (HOSCO) Ouagadougou Burkina Faso Faculty of Health University Saint Thomas d’Aquin (USTA) Ouagadougou Burkina Faso Ecole Normale Supérieure Koudougou Burkina Faso Chair “Research and Action Against Cancer” Département de Santé Publique Training and Research Unit in Health Sciences University Joseph KI-ZERBO Ouagadougou Burkina Faso Observatoire National de la Santé de la Population Institut National de Santé Publique Ouagadougou Burkina Faso The Department of Epidemiology Biostatistics and Occupational Health School of Population and Global Health Montreal Canada Laboratory of Pathological Anatomy and Cytology University Joseph KI-ZERBO Ouagadougou Burkina Faso

Introduction: Cervical cancer is a public health concern and is mainly caused by Human papillomaviruses (HPV). In many parts of the world, studies are being carried out to understand the different genotypes to better tackle this issue. We conducted a study to determine the prevalence of HPV genotypes in women with chronic hepatitis B or C infection, co-infected or not with HIV, treated at the Hôpital Saint Camille in Ouagadougou (Burkina Faso). methods: This study was conducted from April to July 2023, including 100 women in gastroenterology at Hôpital Saint Camille. A questionnaire on their socio-demographic and life style was administrated;and endocervical samples were collected using sterile swabs and then sent to Centre of Biomolecular Research Pietro Annigoni (CERBA). HPV molecular detection and genotyping were performed by PCR and hybridization using the HPV Direct Flow Chips kit. Data were analysis using chi square test or Fischer’s exact test with a significance threshold for p Results: The prevalence of HPV infection was 28% (28/100) on the sample of women tested. The most frequent genotypes were HPV 52 (8.33%), followed by HPV 18 and 68 (6.25% each) for high-risk HPVs, and HPV 6, 44/55 and 62/81 (8.33% each) for low-risk HPVs. Conclusion: This study, the first of its kind in Burkina Faso on this group of the population, reveals that the most frequent genotypes found in this study are not included in the vaccine available in Burkina Faso (Gardasil®4).

关键词： Human Papillomavirus Cervical Cancer Hepatitis Human Immunodeficiency Virus Burkina Faso

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The germline genetics of mild-to-moderate penetrance:An intriguing role of PRAmE in multiple carcinogenesis

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Genes & Diseases 2024年第3期11卷 7-10页

作者： Diaddin Hamdan Van Tai Nguyen Justine Paris Christophe leboeuf morad El Bouchtaoui marc Espie Anne Janin Geraldine Falgarone m.lanie Di Benedetto Guithem Bousquet Universite de Paris Cite INSERMUMR_S942MASCOTParis F-75006France Hopital La Porte Verte Versailles F-78004France National Cancer Hospital Cancer Research and Clinical Trials CenterHaNoi100000VietNam AP-HP-Hopital Saint Louis Centre de Maladies du SeinParisF-75010France Universite Sorbonne Paris Nord Bobigny F-93000France AP-HP-Hopital Avicenne Unite de Medecine AmbulatoireBobigny F-93000France

Germline genetics of high penetrance such as BRCA genes,mutations might be sufficient for carcinogenesis,but this only explains fewer than 10%of *** assume that most cancers are the result of germline mutations of low to moderate penetrance,combined with acquired mutations due to external carcinogenic *** their accumulation over time,aging is associated with an increased risk of multiple cancer development in a given *** decades,germline genetics have been based on familial linkage studies enabling most high-penetrance genes to be *** recently,population-wide studies have led to the identification of considerable numbers of polymorphisms associated with cancer ***,most of them are of unknown functional value,thus limiting their translational application.

关键词： carcinogenesis BRCA linkage

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Cognition and the brain of brood parasitic cowbirds

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Integrative Zoology 2019年第2期14卷 145-157页

作者： David F.SHERRY m.lanie F.GUIGUENO Department of Psychology Western University LondonOntario Department of Natural Resource Sciences McGill UniversityMontrealQuebecCanada

Cowbirds are brood *** lay their eggs in the nests of other species,which then incubate the cowbird eggs and raise the young *** and returning to heterospecific nests presents cowbirds with several cognitive *** some species,such as brown-headed cowbirds(molothrus ater),females but not males search for and remember the locations of potential host *** describe recent research on sex differences in cognition and the hippocampus associated with this sex difference in search for host *** brown-headed cowbirds perform better than males on some,but not all,tests of spatial memory and females show a pattern of adult hippocampal neurogenesis not found in males or in closely related non-parasitic *** of the apparent specialization of the hippocampus,brown-headed cowbirds may be a good model in which to examine spatial information processing in the avian hippocampus and we also describe recent research on the spatial response properties of brown-headed cowbird hippocampal neurons.

关键词： adult neurogenesis brood parasites cowbirds hippocampus sex differences spatial memory

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Suicidal Behaviours in Sickle Cell Patients at the Douala Sickle Cell Care Centre in Cameroon

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Open Journal of Psychiatry 2024年第3期14卷 265-281页

作者： Christian Eyoum Léonce Kengno Kologne Charlotte Eposse Ekoube Annick m.lanie magnerou Joséphine manga Befolo Cindy Laura Ndepa Daniel Gams massi Aurore Nzesseu Djomo Guy Jonas Basseguin Atchou Guy Calvin mbongo’O Rihta mbono mbekoto Iyawa Hassanatou Fabiola Tchouankeu Kounga Christiane medi Sike Josiane Essola Jacques Narcisse Doumbe Erero Njiengwe Callixte Kuate Tegueu Faculty of medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Laquintinie Hospital Douala Cameroon Faculty of Health Sciences University of Buea Buea Cameroon Faculty of medicine and Biomedical Sciences University of Yaound&#233 1 Yaound&#233 Cameroon

Introduction: Sickle cell anaemia is a hereditary disease that combines physical and psychological manifestations, including suicidal tendencies. So far, to our knowledge, no study has been conducted on suicidal behaviours among people with sickle cell disease in Cameroon. This is what justifies our study on the prevalence and factors related to suicidal behaviors in our study population. methods: We conducted a cross-sectional, analytical study of 171 sickle cell patients aged from 12 years upwards who came to the sickle cell disease care service of the Laquintinie Hospital in Douala, over a period of 6 months, that is, from 1 January to 31 June 2022. Data were collected using a structured questionnaire with questions on suicidal behaviours based on the “mINI” (mini International Neuropsychiatric Interview). The data were processed using the SPSS 26.0 software. The related factors were studied in both a bivariate and multivariate analysis. Results: Female sickle cell patients accounted for 60.2% of the sample. The mean age was 23.36 ± 8.42 years. Suicidal ideation was prevalent in 56% of cases and 13% attempted suicide. The factors most associated with suicidal ideation were: primary level of education (OR = 0.08 (0.09 - 0.79);p = 0.03), feeling unworthy of life (OR = 0.40 (0.08 - 1.96);p = 0.02), not often being considered by those around them (OR = 2.97 (1.26 - 6.99);p = 0.01), lack of family support (OR = 0.34 (0.15 - 0.77);p = 0.01). meanwhile, the factors associated with suicide attempts were: the fact of being rarely exposed to suicide-related media (OR = 4.17 (1.40 - 71.80);p = 0.03), and a constant feeling of sadness when returning home (OR = 18.02 (1.59 - 20.55);p = 0.01). Conclusion: more than half of sickle cell patients had had suicidal thoughts and 1/6 had made at least one suicide attempt, women and young adults being the most concerned. It is therefore necessary to ensure optimum psychological care for patients with sickle cell disease.

关键词： Sickle Cell Disease Suicidal Behaviours Self-Harm

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Screening polypectomy rates below quality benchmarks:A prospective study

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World Journal of Gastroenterology 2014年第43期20卷 16300-16305页

作者： maida J Sewitch mengzhu Jiang m.lanie Fon Sing Alan Barkun Lawrence Joseph Department of medicine Mc-Gill UniversityMontréalQuébec H3G 1Y6Canada Division of Clinical Epidemiology Research Institute of the Mc Gill University Health CentreMontréalQuébec H3A 1A1Canada Department of Epidemiology Biostatistics and Occupational HealthMc Gill UniversityMontréalQuébec H3A 1A2Canada

AIm: To estimate and compare sex-specific screening polypectomy rates to quality benchmarks of 40% in men and 30% in women.

关键词： Benchmarking Colonoscopy Colorectal cancer Quality assurance Screening

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A novel regulatory region controls IgH locus transcription and switch recombination to a subset of isotypes

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Cellular & molecular Immunology 2019年第11期16卷 887-889页

作者： Rocío Amoretti-Villa m.lanie Rogier Isabelle Robert Vincent Heyer Bernardo Reina-San-martin Institut de Génétique et de Biologie moléculaire et Cellulaire(IGBmC) IllkirchFrance Institut National de la Santéet de la Recherche médicale(INSERm) U1258IllkirchFrance Centre National de la Recherche Scientifique(CNRS) UMR7104IllkirchFrance Universitéde Strasbourg IllkirchFrance

Class switch recombination(CSR)occurs at the IgH locus and replaces the immunoglobulin(Ig)isotype expressed from Igm to IgG,IgE or IgA,endowing the B cell receptor with novel effector *** is triggered by activation-induced cytidine deaminase(AID),1 an enzyme that deaminates cytosines to uracils in single-stranded DNA exposed by *** distinct antibody isotypes are encoded in the IgH locus in individual transcription units composed of a cytokine-inducible promoter,an intronic exon,and a switch region(Sx),followed by the exons encoding the constant region(Cx)(Fig.S1a).During CSR,the choice of recombination to a particular isotype is determined by the stimulation-dependent activation of specific promoters,triggering the generation of noncoding germline transcripts(GLTs).2 Thus far,the transcriptional regulation of the IgH locus is known to be controlled by the Eμenhancer,located downstream of the variable region and upstream of the donor switch region(Sμ),and the 3′regulatory region(3′RR)super-enhancer located downstream of Cα.

关键词： IgH stimulation replace

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Differences in phenotype,homing properties and suppressive activities of regulatory T cells induced by epicutaneous,oral or sublingual immunotherapy in mice sensitized to peanut

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Cellular & molecular Immunology 2017年第9期14卷 770-782页

作者： Vincent Dioszeghy Lucie mondoulet Emilie Puteaux Véronique Dhelft m.lanie Ligouis Camille Plaquet Christophe Dupont Pierre-Henri Benhamou Research Department DBV TechnologiesParis92220France Pédiatrie-Gastroentérologie Université Paris Descartes&APHP-Hôpital NeckerParis75743France

Allergen-specific immunotherapy has been proposed as an attractive strategy to actively treat food allergy using the following three different immunotherapy routes:oral(OIT),sublingual(SLIT)and epicutaneous(EPIT)*** T cells(Tregs)have been shown to have a pivotal role in the mechanisms of *** aim of this study was to compare the phenotype and function of Tregs induced in peanut-sensitized BALB/c mice using these three routes of *** show that although EPIT,OIT and SLIT were all able to effectively desensitize peanut-sensitized mice,they induced different subsets of ***3+Tregs were induced by the three treatment routes but with greater numbers induced by *** and OIT also increased the level of LAP+Tregs,whereas SLIT induced IL-10+*** suppressive activity of EPIT-induced Tregs did not depend on IL-10 but required CTLA-4,whereas OIT acted through both mechanisms and SLIT was strictly dependent on ***,the three routes influenced the homing properties of induced Tregs differently,with a larger repertoire of chemokine receptors expressed by EPIT-induced Tregs compared with OIT-and SLIT-induced cells,resulting in different protective consequences against allergen ***,whereas OIT-or SLIT-induced Tregs lost their suppressive activities after treatment was discontinued,the suppressive activities of EPIT-induced Tregs were still effective 8 weeks after the end of treatment,suggesting the induction of a more long-lasting *** summary,EPIT,OIT and SLIT mediated desensitization through the induction of different subsets of Tregs,leading to important differences in the subsequent protection against allergen exposure and the possible induction of tolerance.

关键词： allergy immunotherapy mechanisms regulatory T cells

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Effect of Sample matrix on Radial and Axial Profiles of Ion Abundance in Inductively Coupled Plasma mass Spectrometry

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American Journal of Analytical Chemistry 2011年第7期2卷 739-751页

作者： Clarisse mariet Francine Carrot m.lanie moskura 不详

In inductively coupled plasma mass spectrometry (ICP-mS) analysis, only a few options are available to deal with non-spectroscopic interferences. Considering that diluting the sample is impractical for traces analysis, other alternatives must be employed. Traditionally, the method of standard additions is used to correct the matrix effect but it is a time consuming method. Others methods involves separation techniques. Another way to overcome matrix interferences is to understand the mechanism involved and adjust plasma viewing conditions to reduce or eliminate the effect. In this study, the effect of various concomitant elements in ICP-mS was assessed by measuring the distribution of selected singly charged analyte ions (Al, V, Cr, mn, Ni, Co, Cu, Zn, As, In, Ba, La, Ce, Pb), doubly charged ions (La, Ce, Ba and Pb) and oxides ions (BaO) in the presence of concomitant elements spanning a mass range from 23 (Na) to 133 (Cs) u.m.a. and different ionization energies. Concomitant elements are alkali metals, alkaline earth metals and Si. Analyte ion suppression was observed while moving the ICP across and away from the sampling interface with or without a single concomitant element. matrix effect measures were realised, firstly, to highlight the relation between the signal extinction of an analyte and the masse of the concomitant element, and secondly to highlight the relation between the removal of the analyte signal and the first ionization energy of the element of matrix. A dependence upon both the mass of the matrix element and the mass of the analyte was observed. The suppression seems increased with increasing matrix element mass and decreased with increasing analyte mass. The effect of the mass of the matrix element was the more significant of the two factors. If space-charge effects were found to be significant for matrix elements of much lower mass, it seems diffusion also played an active part for heavier matrix elements. Finally, some evidence was found for a

关键词： matrix Effects Easily Ionized Elements Inductively Coupled Plasma mass Spectrometry Spatial Profiling

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