43 results on '"Hamouda S"'
Search Results
2. VP13.20: Prenatal diagnosis of caudal regression sequence
- Author
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Affes, F., primary, Hamouda, S. Ben, additional, Masmoudi, A., additional, and Bouguerra, B., additional
- Published
- 2021
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3. VP21.14: Prenatal diagnosis of congenital heart disease: contribution of screening ultrasound
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Affes, F., primary, Hamouda, S. Ben, additional, Hmida, E. Ben, additional, Masmoudi, A., additional, and Bouguerra, B., additional
- Published
- 2021
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4. Quality enhancement of frozen Nile tilapia fillets using rosemary and thyme oil
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Elhafez, M.A., primary, Yehia, N., additional, Amin, R., additional, Emam, W., additional, Hamouda, S., additional, and El-Magd, M.A., additional
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- 2020
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5. Characterization and application of ceramic membranes prepared from Algerian kaolin
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Aissat, M., primary, Hamouda, S., additional, Bettahar, N., additional, Tarboush, B. J. Abu, additional, and Bahmani, A., additional
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- 2019
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6. Apport de l'analyse spatiale dans le suivi du couvert végétal du parc national d’El-Kala, (Algérie)
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Hamouda, S and Tahar, A
- Subjects
Parc National d’El-Kala – Biodiversité - Activités agricoles – Pastoralisme - Système d’Information Géographique - Abstract
L’objet du présent travail consiste à étudier les dynamiques des activités agricoles et de l’occupation des sols, étroitement liées aux variations d’usages de la ressource en eau, constituée essentiellement des lacs du Parc National d’El-Kala ou P.N.E.K (Lac Oubeïra, Lac Tonga, Lac Mellah, Lac Bleu). La pression démographique conjuguée à la faible industrialisation de la région ont favorisé le développement de l’agriculture devenue la première source d’emplois. Cette recherche propose de déterminer, au travers des changements d’occupation du sol, les écarts entre les discours officiels et les comportements des populations locales. L’exploitation des ressources dans les aires protégées et aux alentours est une pratique courante, reconnue comme la manifestation la plus visible des actions des populations rurales. Les données de télédétection exploitées dans le cadre de ce travail se sont avérées bien appropriées à la problématique abordée. La base cartographique mise en place constitue un outil pour le suivi de l’évolution des couverts végétaux et de l’occupation du sol du Parc. Les traitements des données satellites ont été effectués aux niveaux scalaires pertinents pour l’identification des transformations spatiotemporelles de l’occupation du sol dans le P.N.E.K. Ils ont permis de caractériser les changements de faciès du couvert végétal.Mots clés : Parc National d’El-Kala – Biodiversité - Activités agricoles – Pastoralisme - Système d’Information Géographique.The purpose of this work is to study the dynamics of the agricultural activities and the land use which are closely linked to the changes of water resource supply from the Park Lakes (Oubeira, Tonga, Mellah and Blue Lakes). Demographic rise combined with the low industrial activities have favored the development of agriculture that became the first employment source. This research focuses, through the changes in land use, on the gaps that exist between the officials and the local people’s attitudes. The exploitation of water resources in the protected and the surroundings areas is a common practice, recognized as the most visible manifestation of the rural populations’ actions. The observed data in this remote sensing work proved to be appropriate to the exposed problem. The cartographic study constitutes a tool for monitoring the vegetation cover evolution and the Park land use. The satellite data processing were carried out at the pertinent scalar levels for land use identification in the PNEK by spatio-temporal transformations. It have allowed the characterization of vegetation cover facies changes.Key words: National park of El-Kala – Biodiversity - Agricultural activities – Pastoralis - Geographical information system.
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- 2015
7. SimpleChartsRI: A User-Friendly Web-Tool for Creating Effective Visualizations
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Spaulding Matthew Michael, Sean Khang, and Hamouda Sally
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technology ,website ,simplechartsRI ,education ,data visualizer ,simple interface ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
Data visualization tools can help teachers engage students who are visual learners. Current web-tools that focus on the creation of visualizations are not beginner-friendly and require little support for teachers wishing to implement visualizations into their classrooms. As a result, teachers rarely use visualization tools. This paper addresses the lack of visualization tool usage in classrooms, analyzes why this is based on previous research and current research we conducted, and offers potential focuses a visualization tool should have—through the lens of our own tool SimpleChartsRI—for pedagogical use. SimpleChartsRI aims to help high-school teachers create effective visualizations through a simple user-friendly interface that guides them on best practices.
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- 2021
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8. Diagnosis of small capacity reverse osmosis unit for desalinated tap water
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Hamouda, S. Ben, primary, Akhtar, F. Hasan, additional, and Elfil, H., additional
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- 2013
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9. Nitrates removal on PUROLITE A 520E resin: kinetic and thermodynamic studies
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Turki, T., primary, Ben Hamouda, S., additional, Hamdi, R., additional, and Ben Amor, M., additional
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- 2012
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10. Multiple scattering correction for high Gamma-Ray compton experiments
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Hamouda, S A, primary and Alabyad, A M, additional
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- 2010
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11. Elaboration of novel polymeric blends with in-situ formation of metallic nanoparticles: water vapour transport properties
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Ben Hamouda, S., primary, Langevin, D., additional, and Roudesli, S., additional
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- 2009
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12. Effect of dexamethasone on osteoclast formation in the alveolar bone of rabbits
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A. Hamouda, S., primary and Y. Yasear, A., additional
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- 2009
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13. AN ATTEMPT TO DEVELOP A SCALE FOR TECHNICAL AND EDUCATIONAL QUALITY OF AGRICULTURAL EXTENSION POSTERS WITH APPLICATION ON SOME AGRICULTURAL EXTENSION POSTERS IN THE FIELD OF AGRICULTURAL AND RURAL DEVELOPMENT.
- Author
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Abd EL-Magieed, M., primary and Hamouda, S., additional
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- 2006
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14. Essai typologique des périmètres irrigués du gouvernorat d’El Kef (Nord-ouest de la Tunisie): Un outil pour diagnostiquer et juger les performances des exploitations agricoles
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Hamouda SAMAALI and Mostpha MJEJRA
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General Works - Abstract
Le présent travail tente de réaliser des essais typologiques pour les périmètres irrigués du gouvernorat d’El Kef (Nord-Ouest de la Tunisie), de dégager des groupes de périmètres homogènes en se basant sur un certain nombre de critères, de former un outil d’analyse performant aux décideurs et de renforcer la crédibilité des choix d’intervention. La typologie entreprise est basée sur des critères fonctionnels qui sont la superficie allouée aux céréales, aux cultures maraîchères, à l’arboriculture et aux cultures fourragères. La classification effectuée au moyen de la méthode AHP de Saaty a permis d’évaluer le vecteur de poids des critères d’entrée pour 87 périmètres irrigués et de les classer. Au terme de cette analyse, on retient quatre types de périmètres: les grands périmètres très diversifiés de la classe A, ceux moyennement diversifiés de la classe B, les petits périmètres appliquant un système monocultural de la classe C et enfin ceux de la classe D qui ne sont pas exploités. Les résultats issus de la typologie par la méthode AHP de Saaty et d’une autre méthode cartographique montrent des signes de similarité de l’ordre de 93 % et montrent que 2/3 des PI sont considérés globalement comme médiocres (système monocultural ou non exploité), 29 sont performants (très diversifiés) et 7 sont moyennement diversifiés. Mots clés : Périmètre irrigué, El Kef, typologie, méthode AHP de Saaty, cartographique
- Published
- 2020
15. STUDIES ON THE LIFE TABLE OF COTTON LEAFWORM, SPODOPTERA LITTORALIS (BOISD.) AT CERTAIN CONSTANT TEMPERATURE REGIMES
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Hamouda,, S., primary
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- 2000
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16. EFFECT OF CERTAIN AGRICULTURAL PRACTICES AND NON-CHEMICAL MATERIALS ON INSECT PESTS, PREDATORS AND YIELD OF ROSELLE PLANTS IN MINIA REGION
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Fouad,, M., primary, Gharib, A., additional, and Hamouda, S., additional
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- 2000
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17. Neutron diffraction investigation of Fe-Ni alloys in the martensite state
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Ajaal, T. T., primary, El-Zawi, R. A., additional, Hamouda, S., additional, Khalf, F., additional, and Teplouchov, S. G., additional
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- 1993
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18. Effect of dexamethasone on osteoclast formation in the alveolar bone of rabbits.
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Yasear, A. V. and Hamouda, S. A.
- Subjects
- *
DEXAMETHASONE , *INTRAPERITONEAL injections , *OSTEOCLASTS , *BONE cells , *BONE growth , *BONE resorption , *MANDIBLE , *VETERINARY medicine ,RABBIT diseases - Abstract
This study was planned to determine whether a short period dexamethasone treatment induce alveolar hone loss or not, therefore, twenty six male albino rabbits were divided into three groups as follow: Test groups 1(10 rabbits) received 1.56 mg/kg dexamethasone intraperitoneal injection daily for two weeks, test group II (10 rabbits) received 3.12 mg/kg dexamethasone intraperitoneal injection daily, and the control group (6 rabbits) received saline solution for same period. The animals were sacrificed and histological sections were prepared from the alveolar bone of molar areas of mandible, as well as morphomotric analysis at osteoclasts number was performed. The results showed a significant increase in the number of osteoclasts, which indicates that bone loss, is quite inevitable secondary to dexamethasone treatment even in a short period of treatment for two weeks. [ABSTRACT FROM AUTHOR]
- Published
- 2009
19. Diagnosis of small capacity reverse osmosis unit for desalinated tap water
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Hamouda, S. Ben, Akhtar, F. Hasan, and Elfil, H.
- Abstract
AbstractTunisian norms for drinking water tolerates a maximum TDS of 1.5 g/L and the domestic water presents usually salinity greater than 500 mg/L. In the last years, several small capacity reverse osmosis desalination prototypes have been marketed. The RO unit used in this research produces 10–15 L/h of treated water with a recovery rate between 25 and 40% and salt rejection in the order of 90%. The salinity of the tested domestic water is between 0.4 and 1.4 g/L. Water pretreatment is composed of three filtration operations (cartridge filter, granulate active carbon filter, and 5 μm cartridge filter). Pretreated water is pumped through RO membrane with a maximum pressure of 6 bars. At the 4th year, the RO unit’s performance was substantially decreased. The recovery rate and salt rejection fall down about 50 and 100%, respectively, and the pressure drop increases from 1 to 2.1 bars. An autopsy of the used RO membrane was done by different analysis techniques such as SEM/EDX, AFM, XRD, and FTIR spectroscopy. The analysis of the membrane surface shows a 2 μm deposit film indicating a fouling phenomenon. The SEM photos show deterioration on the active layer of the membrane which seems to be attacked by the tap water chlorine. X-ray diffraction and FTIR show that the deposit collected on the used membrane contains organic and mineral (Gypsum, SiO2, and clays) materials. The desalinated water cost (TDS < 100 mg/L) is less than 0.02 US$/L. It is about one-seventh of the mineral waterprice.
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- 2014
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20. L'apport des indices SPI et NDVI pour l'evaluation des conditions du risque de secheresse aux alentours du Barrage Sejnane (Tunisie Septentrionale)
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BRAHIM JAZIRI, HAMOUDA SAMAALI, and MUSTAPHA MJEJRA
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Geography. Anthropology. Recreation ,Geography (General) ,G1-922 - Published
- 2018
21. Metabolomic Profiling of Lipids and Fatty Acids: 3 Years Postoperative Laparoscopic Sleeve Gastrectomy
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Charu Sharma, Carine Platat, Salah Gariballa, Shamma Jauaan Al Muhairi, Anas Al Aidaros, Guido Hein Huib Mannaerts, Hamouda Salim Al Afari, Javed Yasin, Osama Y. Al-Dirbashi, and Juma Alkaabi
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obesity ,laparoscopic sleeve gastrectomy ,lipids ,fatty acids ,Biology (General) ,QH301-705.5 - Abstract
Visceral obesity is common in the United Arab Emirates and worldwide. Although laparoscopic sleeve gastrectomy (LSG) leads to effective and sustainable weight loss, its long-term beneficial impact on other risk factors, including blood lipid and fatty acid (FA) profiles, remains unknown. These two profiles were assessed in patients 3 years after undergoing LSG and in LSG candidates (controls). Lipid profiles were measured using the Cobas e411 modular analyzer, and 35 FAs were identified. The age and body mass index were 36.55 ± 8.65 years and 31.49 ± 6.43 kg/m2 in the LSG group and 35.44 ± 9.51 years and 32.29 ± 5.38 kg/m2 in the control group, respectively. The overall lipid profile was more favorable in the LSG group than in the control group. Total saturated, monounsaturated, and polyunsaturated FAs were similar between the groups, but total medium-chain FAs were more abundant in the LSG group. In endogenous FA synthesis, the estimated activity of C16Δ9 desaturase and Δ5 desaturase decreased, whereas that of elongase increased in the LSG group compared with that in the control group. The benefits of LSG on blood lipid and FA profiles in patients with 3-year LSG may be limited. Hence, lifestyle interventions combined with a long-term and strict regular follow-up regime may be warranted for patients undergoing LSG.
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- 2021
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22. Dynamique successionnelle de la végétation au sein de la plaine alluviale d'une rivière semi-aride : l'exemple de l'oued Ziatine (Tunisie)
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Brahim Jaziri and Hamouda Samaali
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Tunisia ,floodplain ,stream bed ,ox-bow ,riparian vegetation ,vegetable succession ,Physical geography ,GB3-5030 ,Geography (General) ,G1-922 - Abstract
In its downstream portion, the Ziatine wadi presents an intersected meander in the sixties, following a brutal hydrological event. The study of this sector and the related coastal area is based on cartographic and photographic documents, the oldest dating back to 1897. On this stretch, which is 4 km long, the stream has witnessed important lateral migrations. In the upstream portion of the meander, which does not flow anymore, the channel has been filled and there exist some periodic ponds. Everywhere, the shoreline vegetation is subject to the effects of the stream meandering tendencies. Between 1948 and 2007, the riparian and rush-bed areas remained stable; the lawn decreased by 11 %, but remains the largest one. The mattoral has regressed, but tree planting, especially on the coastal dune, has expanded. Cultivated spaces have remained very limited. In the future, the changes will be influenced by the dam for irrigation which was operational in 2010 in the upstream of the study area.
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23. Les « Ramli », Jardins de culture du littoral nord-est tunisien : cartographie de l’évolution récente d’un système original d’irrigation
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Hamouda Samaâli and Ibtissem Tounsi-Guerin
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cartography ,recent dynamics ,wetland ,Sidi Ali El Mekki lagoon ,Ramli garden ,Mathematical geography. Cartography ,GA1-1776 - Abstract
Using a cartographic approach, this paper studies the recent evolution of Ramli gardens. This agricultural parcel was developed on the lagoon of Sidi Ali El Mekki (wetlands in the Gulf of Tunis, the former Bay of Utica). Its unique irrigation system uses the movement of tides to push the water table to the roots. Our methodology is based on the use of a variety of large-scale mapping, photographic, and satellite data processed under a GIS. This study is also based on a survey of 67 local farmers. The work on plot evolution is based on the cartography of changes in land use between 1948 and 2016 and is consolidated by the statistical results of spatial structure indicators that have revealed profound changes. In fact, between 1948 and 1982, the northern banks of the lagoon sheltered most of the agricultural parcels developed for this period, which covers 28.35% of the total agricultural area. Starting from the 1980s, and with sedimentary transformations, the zone located on the coast hosted most of the managed farms with a growth rate of around 217.5%. After 2010, this same area has undergone strong anthropic pressure and the majority of the area's urbanization; aprocess that may shrink the overall area of these garden's that are the sole of their kind in the world.
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24. Mucosal leishmaniasis of the lips and cheeks: a first concomitant presentation of visceral and mucosal leishmaniasis in a patient living with HIV/AIDS in Monastir, Tunisia.
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Berrezouga L, Kooli I, Belgacem S, Marrakchi W, Ben Hamouda S, Toumi A, Babba H, Zakhama A, and Chakroun M
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- Humans, Male, Adult, Tunisia, Antiprotozoal Agents therapeutic use, Cheek parasitology, Leishmania infantum isolation & purification, Leishmania infantum genetics, AIDS-Related Opportunistic Infections drug therapy, AIDS-Related Opportunistic Infections diagnosis, AIDS-Related Opportunistic Infections parasitology, Treatment Outcome, Leishmaniasis, Visceral drug therapy, Leishmaniasis, Visceral diagnosis, HIV Infections complications, HIV Infections drug therapy, Lip pathology, Lip parasitology, Leishmaniasis, Mucocutaneous drug therapy, Leishmaniasis, Mucocutaneous diagnosis, Amphotericin B therapeutic use
- Abstract
Background: Visceral Leishmaniasis (VL) is the most severe and fatal disease if left untreated. In people living with HIV/AIDS (PLHA), VL is considered an emerging opportunistic infection. The aim of this manuscript was to report a first case in Tunisia of a concomitant presentation of visceral and oral leishmaniasis in a patient LHA. A systematic review of the literature was performed according to PRISMA guidelines, as well., Case Presentation: The patient, a 43-year-old heterosexual man, treated for HIV/AIDS was referred for macrocheilitis of the upper and lower lips. A noticeable nodular and painless swelling extending to the cheeks' mucosa was noted. The patient's poor oral hygiene was evident due to the presence of multiple dental caries. Histological analysis of the biopsied lower lip sample revealed the presence of numerous Leishmania amastigotes. The diagnosis of VL was clinically confirmed by the presence of a mild splenomegaly and pancytopenia and biologically by the identification of the parasite using PCR Lei and the species L. infantum involved using RFLP-PCR and culture. The treatment consisted of an intravenous administration of liposomal Amphotericin B (Ambisome®, 40 mg/kg/weight) for a period of 6 weeks. A favorable outcome was noted after one year with the resolution of clinical symptoms and a negative Leishmania blood PCR test. After 2 years, the patient remained asymptomatic but showed a positive Leishmania blood PCR test. Dolutegravir® was introduced in the patient's ART regimen., Conclusions: To the best of our knowledge, this is the first case report in Tunisia of atypical VL diagnosed through an uncommon oral location in an HIV/AIDS co-infected patient . Since VL is a severe and potentially fatal disease, it is essential for dentists to perform a thorough clinical examination and adopt a multidisciplinary approach in order to ensure an early diagnosis and an effective treatment outcome., (© 2024. The Author(s).)
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- 2024
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25. Psychometric characteristics of the Narcissistic Admiration and Rivalry Questionnaire (NARQ): Arabic version.
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Sabah A, Aljaberi MA, Hamouda S, Benamour D, Gadja K, Lai YC, Fang CY, Ali AM, and Lin CY
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- Humans, Female, Male, Surveys and Questionnaires, Young Adult, Adult, Algeria, Reproducibility of Results, Adolescent, Arabs psychology, Students psychology, Factor Analysis, Statistical, Psychometrics methods, Narcissism
- Abstract
Narcissists are characterized by confidence, fragility, a desire for social approval without showing interest in others, charm, self-assurance, arrogance, and aggression. This study assesses the psychometric properties of the Arabic version of the Narcissistic Admiration and Rivalry Questionnaire (NARQ) among Algerian students ( N = 714). Confirmatory factor and Rasch analyses were used. The NARQ consists of 18 items addressing six narcissism subscales under two main dimensions: rivalry and admiration. The results showed good saturation of the items on the six subscales and the three sub-scales on each of the two main dimensions, revealing a modest but positive correlation between rivalry and admiration. Moreover, the results of the Rasch model demonstrated that the scale aligns with the data, confirming the validity of the scale. This study offers valuable perspectives on assessing narcissism among Arabic populations and enhances our comprehension of the traits linked to narcissistic personalities., Competing Interests: The authors declare there are no competing interests., (©2024 Sabah et al.)
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- 2024
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26. Grandiose narcissism, unfounded beliefs, and behavioral reactions during the COVID-19 pandemic.
- Author
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Żemojtel-Piotrowska M, Sawicki A, Piotrowski J, Lifshin U, Kretchner M, Skowronski JJ, Sedikides C, Jonason PK, Adamovic M, Ahmed O, Atitsogbe KA, Al-Shawaf L, Appiah SCY, Ardi R, Azam U, Babakr ZH, Baldursson EB, Bălțătescu S, Bochaver K, Bolatov A, Bonato M, Bundhoo HY, Chaleeraktrakoon T, Chobthamkit P, Cowden RG, Counted V, de Clunie G, Dragova-Koleva S, Esteves CS, Gouveia VV, Gundolf K, Hamouda S, Haretche C, Jeong EHK, Iliško D, Malik NI, Aruta JJB, Jia F, Jovanović V, Jukić T, Jukić DP, Kamble SV, Khachatryan N, Klicperova-Baker M, Kogler C, Knezović E, Koralov M, Kovacs M, Eldesoki WLM, Fernandez AL, Liik K, Malik S, Maltby J, Malysheva K, Mamuti A, Mangafic J, Moon C, Milfont TL, Muehlbacher S, Najafi R, Özsoy E, Park J, de León PP, Solcova IP, Ramos-Diaz J, Ridic G, Riđić O, Samekin A, Spoto A, Starc A, Stefenel D, Trà KTT, Tiliouine H, Tomšik R, Torres-Marín J, Umeh CS, Wills-Herrera E, Wlodarczyk A, Vally Z, Vauclair CM, Yahiiaiev I, and Zand S
- Subjects
- Humans, Male, Female, Adult, Pandemics, SARS-CoV-2, Middle Aged, Young Adult, COVID-19 psychology, COVID-19 epidemiology, Narcissism
- Abstract
A theoretical perspective on grandiose narcissism suggests four forms of it (sanctity, admiration, heroism, rivalry) and states that these forms conduce to different ways of thinking and acting. Guided by this perspective, we examined in a multinational and multicultural study (61 countries; N = 15,039) how narcissism forms are linked to cognitions and behaviors prompted by the COVID-19 pandemic. As expected, differences in cognitions and behaviors across narcissism forms emerged. For example, higher narcissistic rivalry predicted lower likelihood of enactment of COVID-19 prevention behaviors, but higher narcissistic sanctity predicted higher likelihood of enactment of COVID-19 prevention behaviors. Further, whereas the heroism, admiration, and rivalry narcissism forms acted in a typically antisocial manner, with high narcissism predicting greater endorsement of unfounded health beliefs, the sanctity form acted in a prosocial manner, with higher narcissism being linked to lower endorsement of unfounded COVID-19 health beliefs. Thus, the findings (a) support the idea of four narcissism forms acting differently, and (b) show that these differences reflect a double-edged sword, sometimes linking to an anti-social orientation, and sometimes linking to a pro-social orientation., (© 2024. The Author(s).)
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- 2024
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27. A gain-of-function mutation in zinc cluster transcription factor Rob1 drives Candida albicans adaptive growth in the cystic fibrosis lung environment.
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Gnaien M, Maufrais C, Rebai Y, Kallel A, Ma L, Hamouda S, Khalsi F, Meftah K, Smaoui H, Khemiri M, Hadj Fredj S, Bachellier-Bassi S, Najjar I, Messaoud T, Boussetta K, Kallel K, Mardassi H, d'Enfert C, Bougnoux ME, and Znaidi S
- Subjects
- Humans, Gain of Function Mutation, Pseudomonas aeruginosa genetics, Pseudomonas aeruginosa metabolism, Lung microbiology, Candidiasis microbiology, Adaptation, Physiological, Cystic Fibrosis microbiology, Candida albicans genetics, Candida albicans metabolism, Transcription Factors genetics, Transcription Factors metabolism, Biofilms growth & development, Fungal Proteins genetics, Fungal Proteins metabolism
- Abstract
Candida albicans chronically colonizes the respiratory tract of patients with Cystic Fibrosis (CF). It competes with CF-associated pathogens (e.g. Pseudomonas aeruginosa) and contributes to disease severity. We hypothesize that C. albicans undergoes specific adaptation mechanisms that explain its persistence in the CF lung environment. To identify the underlying genetic and phenotypic determinants, we serially recovered 146 C. albicans clinical isolates over a period of 30 months from the sputum of 25 antifungal-naive CF patients. Multilocus sequence typing analyses revealed that most patients were individually colonized with genetically close strains, facilitating comparative analyses between serial isolates. We strikingly observed differential ability to filament and form monospecies and dual-species biofilms with P. aeruginosa among 18 serial isolates sharing the same diploid sequence type, recovered within one year from a pediatric patient. Whole genome sequencing revealed that their genomes were highly heterozygous and similar to each other, displaying a highly clonal subpopulation structure. Data mining identified 34 non-synonymous heterozygous SNPs in 19 open reading frames differentiating the hyperfilamentous and strong biofilm-former strains from the remaining isolates. Among these, we detected a glycine-to-glutamate substitution at position 299 (G299E) in the deduced amino acid sequence of the zinc cluster transcription factor ROB1 (ROB1G299E), encoding a major regulator of filamentous growth and biofilm formation. Introduction of the G299E heterozygous mutation in a co-isolated weak biofilm-former CF strain was sufficient to confer hyperfilamentous growth, increased expression of hyphal-specific genes, increased monospecies biofilm formation and increased survival in dual-species biofilms formed with P. aeruginosa, indicating that ROB1G299E is a gain-of-function mutation. Disruption of ROB1 in a hyperfilamentous isolate carrying the ROB1G299E allele abolished hyperfilamentation and biofilm formation. Our study links a single heterozygous mutation to the ability of C. albicans to better survive during the interaction with other CF-associated microbes and illuminates how adaptive traits emerge in microbial pathogens to persistently colonize and/or infect the CF-patient airways., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Gnaien et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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28. A Longitudinal Study in Tunisia to Assess the Anti-RBD IgG and IgA Responses Induced by Three Different COVID-19 Vaccine Platforms.
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Ben Hamouda W, Hanachi M, Ben Hamouda S, Kammoun Rebai W, Gharbi A, Baccouche A, Bettaieb J, Souiai O, Barbouche MR, Dellagi K, Ben Ahmed M, and Benabdessalem C
- Abstract
Background: Vaccination constitutes the best strategy against COVID-19. In Tunisia, seven vaccines standing for the three main platforms, namely RNA, viral vector, and inactivated vaccines, have been used to vaccinate the population at a large scale. This study aimed to assess, in our setting, the kinetics of vaccine-induced anti-RBD IgG and IgA antibody responses., Methods: Using in-house developed and validated ELISA assays, we measured anti-RBD IgG and IgA serum antibodies in 186 vaccinated workers at the Institut Pasteur de Tunis over 12 months., Results: We showed that RNA vaccines were the most immunogenic vaccines, as compared to alum-adjuvanted inactivated and viral-vector vaccines, either in SARS-CoV-2-naïve or in SARS-CoV-2-experienced individuals. In addition to the IgG antibodies, the vaccination elicited RBD-specific IgAs. Vaccinated individuals with prior SARS-CoV-2 infection exhibited more robust IgG and IgA antibody responses, as compared to SARS-CoV-2-naïve individuals., Conclusions: After following up for 12 months post-immunization, we concluded that the hierarchy between the platforms for anti-RBD antibody-titer dynamics was RNA vaccines, followed by viral-vector and alum-adjuvanted inactivated vaccines.
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- 2024
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29. Anti-Inflammatory and Immunomodulatory Properties of a Crude Polysaccharide Derived from Green Seaweed Halimeda tuna : Computational and Experimental Evidences.
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Kraiem M, Ben Hamouda S, Eleroui M, Ajala M, Feki A, Dghim A, Boujhoud Z, Bouhamed M, Badraoui R, Pujo JM, Essafi-Benkhadir K, Kallel H, and Ben Amara I
- Subjects
- Rats, Mice, Animals, Antioxidants pharmacology, Nitric Oxide metabolism, Tumor Necrosis Factor-alpha metabolism, Cell Line, Anti-Inflammatory Agents pharmacology, Polysaccharides pharmacology, Lipopolysaccharides pharmacology, Cyclooxygenase 2 metabolism, Nitric Oxide Synthase Type II metabolism, Seaweed metabolism, Chlorophyta metabolism
- Abstract
In this study, we investigated for the first time the anti-inflammatory and immunomodulatory properties of crude polysaccharide (PSHT) extracted from green marine algae Halimeda tuna . PSHT exhibited anti-oxidant activity in vitro through scavenging 1, 1-diphenyl-2-picryl hydroxyl free radical, reducing Fe
3+ /ferricyanide complex, and inhibiting nitric oxide. PSHT maintained the erythrocyte membrane integrity and prevented hemolysis. Our results also showed that PSHT exerted a significant anti-edematic effect in vivo by decreasing advanced oxidation protein products and malondialdehyde levels and increasing the superoxide dismutase and glutathione peroxidase activities in rat's paw model and erythrocytes. Interestingly, PSHT increased the viability of murine RAW264.7 macrophages and exerted an anti-inflammatory effect on lipopolysaccharide-stimulated cells by decreasing pro-inflammatory molecule levels, including nitric oxide, granulocyte-macrophage colony-stimulating factor (GM-CSF) and tumor necrosis factor-alpha (TNF-α). Our findings indicate that PSHT could be used as a potential immunomodulatory, anti-inflammatory, anti-hemolytic, and anti-oxidant agent. These results could be explained by the computational findings showing that polysaccharide building blocks bound both cyclooxygenase-2 (COX-2) and TNF-α with acceptable affinities.- Published
- 2024
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30. HBHA-IGRA and cytotoxic mediators release assays for the diagnosis of cervical tuberculous lymphadenitis.
- Author
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Bchiri S, Bouzekri A, Ouni R, Lahiani R, Romdhane E, Dekhil N, Ben Hamouda S, Mardassi H, Ferjani A, Petit E, Corbière V, Rammeh S, Mascart F, Locht C, Ben Salah M, Barbouche MR, and Benabdessalem C
- Subjects
- Humans, Interferon-gamma Release Tests, Tunisia, Tuberculosis, Lymph Node diagnosis, Antineoplastic Agents, Mycobacterium tuberculosis
- Abstract
Importance: Cervical tuberculous lymphadenitis (CTL), the most frequent extrapulmonary form of tuberculosis, is currently a major health problem in Tunisia and in several regions around the world. CTL diagnosis is challenging mainly due to the paucibacillary nature of the disease and the potential misdiagnosis as cervical non-tuberculous lymphadenitis. This study demonstrates the added value of the heparin-binding hemagglutinin-interferon-gamma release assay as an immunoassay in the context of CTL., Competing Interests: The authors declare no conflict of interest.
- Published
- 2023
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31. Congenital surfactant protein B (SP-B) deficiency: a case report.
- Author
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Khalsi F, Chaabene M, Romdhane MB, Trabelsi I, Hamouda S, de Becdelièvre A, and Boussetta K
- Subjects
- Infant, Infant, Newborn, Humans, Female, Surface-Active Agents, DNA, Respiratory Distress Syndrome, Newborn etiology
- Abstract
The incapacity to synthesize certain components of pulmonary surfactant causes a heterogeneous group of rare respiratory diseases called genetic disorders of surfactant dysfunction. We report a female full-term infant with neonatal respiratory distress of early onset due to inherited SP-B deficiency. The infant failed oxygen weaning at multiple trials. Chest computed tomography was performed on the 29
th day of life revealing ground-glass opacities, regular interlobular septal thickening and fine interlobular reticulations. Analysis of genomic DNA showed homozygosity for an extremely rare SFTPB gene variant (c.620A>G, p.Tyr207Cys). Both parents were heterozygotes for the mutation. The diagnosis of congenital SP-B deficiency should be suspected whenever an early and acute respiratory failure in a term or near-term infant does not resolve after five days of age: diagnostic confirmation can be easily and rapidly obtained with the analysis of genomic DNA., Competing Interests: The authors declare no competing interest., (Copyright: Fatma Khalsi et al.)- Published
- 2023
- Full Text
- View/download PDF
32. Interplay between Signaling Pathways and Tumor Microenvironment Components: A Paradoxical Role in Colorectal Cancer.
- Author
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Ben Hamouda S and Essafi-Benkhadir K
- Subjects
- Humans, Tumor Microenvironment, Signal Transduction, Cell Transformation, Neoplastic, Colorectal Neoplasms pathology
- Abstract
The study of the tumor microenvironment (TME) has become an important part of colorectal cancer (CRC) research. Indeed, it is now accepted that the invasive character of a primary CRC is determined not only by the genotype of the tumor cells, but also by their interactions with the extracellular environment, which thereby orchestrates the development of the tumor. In fact, the TME cells are a double-edged sword as they play both pro- and anti-tumor roles. The interaction of the tumor-infiltrating cells (TIC) with the cancer cells induces the polarization of the TIC, exhibiting an antagonist phenotype. This polarization is controlled by a plethora of interconnected pro- and anti-oncogenic signaling pathways. The complexity of this interaction and the dual function of these different actors contribute to the failure of CRC control. Thus, a better understanding of such mechanisms is of great interest and provides new opportunities for the development of personalized and efficient therapies for CRC. In this review, we summarize the signaling pathways linked to CRC and their implication in the development or inhibition of the tumor initiation and progression. In the second part, we enlist the major components of the TME and discuss the complexity of their cells functions.
- Published
- 2023
- Full Text
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33. A case report of inherited surfactant protein deficiency: unknown cause of diffuse infiltrative diseases in Tunisia.
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Hamouda S, Ouerfelli R, Trabelsi I, Mrad K, Khalsi F, and Boussetta K
- Subjects
- Infant, Child, Male, Humans, Tunisia, Lung pathology, Surface-Active Agents, Lung Diseases, Interstitial etiology, Respiratory Tract Infections complications, Respiratory Tract Infections pathology, Protein Deficiency complications, Protein Deficiency pathology
- Abstract
Introduction: Children's Interstitial Lung Diseases (cHILD) are a heterogeneous group of rare respiratory diseases. Their common characteristics are gas exchange abnormalities and diffuse pulmonary infiltrates on chest imaging. This group includes inherited surfactant protein deficiency (ISPD), a little-known etiology in Tunisia., Case Presentation: A 22-month-old boy was referred to investigate recurrent respiratory infections. He had polypnea, cyanosis, finger clubbing, pectus carinatum, intercostal retraction, and bilateral crackles on pulmonary auscultation. The chest imaging revealed a diffuse ground-glass appearance consistent with cHILD. Lung biopsy was suggestive of ISPD. The infant was mainly treated with intravenous corticosteroids. At the age of nine, he was still dependent on oxygen but had better exercise tolerance., Conclusion: This case showed that recurrent respiratory infections can hide cHILD which may be related to ISPD, particularly in infants. A better knowledge of this disease was necessary to start specific treatment. Early management would lead to better prognosis.
- Published
- 2022
34. Tracheal Hemangioma: A Rare Cause of Hemoptysis in Children.
- Author
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Barbaria W, Khamassi I, Gaaloul K, Hamouda S, and Gritli S
- Abstract
Tracheal hemangioma is a very rare benign vascular tumor. Few cases of tracheal hemangioma in children are reported in the literature. Chronic cough is the main symptom of the disease; however, hemoptysis is rarely reported as a symptom of tracheal hemangioma in children. Here, we report a case of tracheal hemangioma in an eight-year-old girl admitted to our pediatric department for recurrent hemoptysis. Routine biological and radiological investigations were normal. Diagnosis was made using computed tomography and bronchoscopy. Beta-blocker therapy was not efficient. Bronchoscopic treatment by electrical excision enables complete recovery. Tracheal hemangioma should be considered a cause of recurrent hemoptysis when routine biological and radiological investigations are negative., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2022
- Full Text
- View/download PDF
35. Difficulties in the treatment of an infant survivor with inherited surfactant protein-B deficiency in Tunisia.
- Author
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Hamouda S, Trabelsi I, de Becdelièvre A, and Boussetta K
- Abstract
A female-term neonate showed a severe respiratory distress syndrome (RDS) at hour 3 of life requiring her transfer to intensive care. She was intubated and started on assist-control mechanical ventilation associated with inhaled nitric oxide then high-frequency oscillation ventilation at day 12. Chest X-ray was gradually deteriorating. Chest computed tomography (CT) scan revealed diffuse interstitial lung disease. Flexible bronchoscopy excluded pulmonary alveolar proteinosis. The genetics study confirmed surfactant protein-B (SP-B) deficiency caused by the novel homozygous c.770T>C, p.Leu257Pro mutation in the SFTPB gene (NM_000542.5). Methylprednisolone pulse therapy was administered from day 20. As the infant worsened, azithromycin, sildenafil, and inhaled steroids were added at the age of 6 months and azathioprine at the age of 10 months. At the age of 12 months, chest CT showed diffuse "crazy-paving." The infant died of respiratory failure at the age of 13 months. Unexplained neonatal RDS should raise the suspicion of SP-B disease. This novel mutation could be part of the mutations allowing partial SP-B production result in prolonged survival. Lung transplant in infants, unavailable in numerous countries, remains the unique way to reverse the fatal outcome., Competing Interests: There are no conflicts of interest., (Copyright: © 2022 Annals of Thoracic Medicine.)
- Published
- 2022
- Full Text
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36. Asthmatic Bronchial Matrices Determine the Gene Expression and Behavior of Smooth Muscle Cells in a 3D Culture Model.
- Author
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Ben Hamouda S, Miglino MA, de Sá Schiavo Matias G, Beauchamp G, and Lavoie JP
- Abstract
Asthma is associated with increased deposition and altered phenotype of airway smooth muscle (ASM) cells. However, little is known about the processes responsible for these changes. It has been suggested that alterations of the extracellular matrix (ECM) contribute to the remodeling of ASM cells in asthma. Three-dimensional matrices allow the in vitro study of complex cellular responses to different stimuli in a close-to-natural environment. Thus, we investigated the ultrastructural and genic variations of ASM cells cultured on acellular asthmatic and control bronchial matrices. We studied horses, as they spontaneously develop a human asthma-like condition (heaves) with similarities to chronic pulmonary changes observed in human asthma. Primary bronchial ASM cells from asthmatic ( n = 3) and control ( n = 3) horses were cultured on decellularized bronchi from control ( n = 3) and asthmatic ( n = 3) horses. Each cell lineage was used to recellularize six different bronchi for 41 days. Histomorphometry on HEPS-stained-recellularized matrices revealed an increased ASM cell number in the control cell/control matrix ( p = 0.02) and asthmatic cell/control matrix group ( p = 0.04) compared with the asthmatic cell/asthmatic matrix group. Scan electron microscopy revealed a cell invasion of the ECM. While ASM cells showed high adhesion and proliferation processes on the control ECM, the presence of senescent cells and cellular debris in the asthmatic ECM with control or asthmatic ASM cells suggested cell death. When comparing asthmatic with control cell/matrix combinations by targeted next generation sequencing, only AGC1 ( p = 0.04), MYO10 ( p = 0.009), JAM3 ( p = 0.02), and TAGLN ( p = 0.001) were differentially expressed out of a 70-gene pool previously associated with smooth muscle remodeling. To our knowledge, this is the first attempt to evaluate the effects of asthmatic ECM on an ASM cell phenotype using a biological bronchial matrix. Our results indicate that bronchial ECM health status contributes to ASM cell gene expression and, possibly, its survival., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Ben Hamouda, Miglino, de Sá Schiavo Matias, Beauchamp and Lavoie.)
- Published
- 2021
- Full Text
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37. Dietary Micronutrients from Zygote to Senility: Updated Review of Minerals' Role and Orchestration in Human Nutrition throughout Life Cycle with Sex Differences.
- Author
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Farag MA, Hamouda S, Gomaa S, Agboluaje AA, Hariri MLM, and Yousof SM
- Subjects
- Female, Humans, Male, Aging physiology, Diet, Micronutrients metabolism, Minerals metabolism, Nutritional Physiological Phenomena, Sex Characteristics, Zygote physiology
- Abstract
Micronutrients such as selenium, fluoride, zinc, iron, and manganese are minerals that are crucial for many body homeostatic processes supplied at low levels. The importance of these micronutrients starts early in the human life cycle and continues across its different stages. Several studies have emphasized the critical role of a well-balanced micronutrient intake. However, the majority of studies looked into or examined such issues in relation to a specific element or life stage, with the majority merely reporting the effect of either excess or deficiency. Herein, in this review, we will look in depth at the orchestration of the main element requirements across the human life cycle beginning from fertility and pregnancy, passing through infancy, childhood, adolescence, and reaching adulthood and senility, with insight on the interactions among them and underlying action mechanisms. Emphasis is given towards approaches to the role of the different minerals in the life cycle, associated symptoms for under- or overdoses, and typical management for each element, with future perspectives. The effect of sex is also discussed for each micronutrient for each life stage as literature suffice to highlight the different daily requirements and or effects.
- Published
- 2021
- Full Text
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38. Preliminary national report on cystic fibrosis epidemiology in Tunisia: the actual state of affairs.
- Author
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Hamouda S, Fredj SH, Hilioui S, Khalsi F, Ameur SB, Bouguila J, Boussoffara R, Besbes H, Ajmi H, Mattoussi N, Messaoud T, Mehrezi A, Hachicha M, Boughamoura L, Sfar MT, Gueddiche N, Abroug S, Becheur SB, Barsaoui S, Tebib N, Samoud A, Gandoura N, Tinsa F, and Boussetta K
- Subjects
- Child, Cystic Fibrosis complications, Diarrhea etiology, Female, Humans, Infant, Male, Malnutrition etiology, Respiratory Tract Infections complications, Respiratory Tract Infections etiology, Retrospective Studies, Tunisia epidemiology, Young Adult, Cystic Fibrosis epidemiology
- Abstract
Aim: To establish a preliminary national report on clinical and genetic features of cystic fibrosis (CF) in Tunisian children as a first measure for a better health care organization., Methods: All children with CF diagnosed by positive sweat tests between 1996 and 2015 in children's departments of Tunisian university hospitals were included. Data was recorded at diagnosis and during the follow-up from patients' medical records., Results: In 12 departments, 123 CF children were collected. The median age at diagnosis was 5 months with a median diagnosis delay of 3 months. CF was revealed mostly by recurrent respiratory tract infections (69.9%), denutrition (55.2%), and/or chronic diarrhea (41.4%). The mean sweat chloride concentration was 110.9mmol/L. At least one mutation was found in 95 cases (77.2%). The most frequent mutations were Phe508del (n=58) and E1104X (n=15). Fifty-five patients had a Pseudomonas Aeruginosa chronic colonization at a median age of 30 months. Cirrhosis and diabetes appeared at a mean age of 5.5 and 12.5 years respectively in 4 patients each. Sixty-two patients died at a median age of 8 months. Phe508del mutation and hypotrophy were associated with death (p=0.002 and p<0.001, respectively)., Conclusion: CF is life-shortening in Tunisia. Setting-up appropriate management is urgent., (© 2020 Hamouda S et al.)
- Published
- 2020
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39. 'Go for it, dream big, work hard and persist': A message to the next generation of CF leaders in recognition of International Women's Day 2020.
- Author
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Langawi MA, Byrnes C, Davies JC, Hamouda S, Kabra M, Rached SZ, Sands D, Shteinberg M, Taylor-Cousar J, Tullis E, and Wainwright C
- Subjects
- Gender Equity, Humans, Leadership, Cystic Fibrosis, Gender Role, Research organization & administration, Research trends, Sexism prevention & control, Women's Rights
- Abstract
The focus for International Women's Day 2020 is gender equity:'We can actively choose to challenge stereotypes, fight bias, broaden perceptions, improve situations and celebrate women's achievements. Collectively, each one of us can help create a gender equal world.' We have come together as an international group of women holding senior positions within CF to raise awareness. There is growing recognition of gender imbalance within our sector in senior leadership, grant and publication success. Several institutions, such as National Institutes of Health, have missions to tackle this. The issues raised by our panellists were wide-ranging: decisions around starting a family, impact on career progression; experiences of bias in appointments or promotions; selfbelief. We hope that raising these issues will encourage future leaders in CF to step up, to build teams based on fairness, equity and diversity, and to catalyse steps towards this goal in their institutions and society more widely., (Copyright © 2020. Published by Elsevier B.V.)
- Published
- 2020
- Full Text
- View/download PDF
40. Cystic fibrosis in Tunisian children: a review of 32 children.
- Author
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Boussetta K, Khalsi F, Bahri Y, Belhadj I, Tinsa F, Messaoud TB, and Hamouda S
- Subjects
- Child, Preschool, Cystic Fibrosis genetics, Cystic Fibrosis pathology, Cystic Fibrosis therapy, Female, Humans, Male, Retrospective Studies, Tunisia epidemiology, Cystic Fibrosis epidemiology
- Abstract
Background: Cystic fibrosis is rare in Tunisia. Its diagnosis requires experienced specialists. Its prognosis is poor in developing countries., Objectives: To study the epidemiologic, clinical, genetic features and the therapeutic challenges of cystic fibrosis in Tunisian children., Methods: Covering a period of 21 years, this retrospective study included all patients with a definite diagnosis of cystic fibrosis from the Pediatrics Department B of The Children's Hospital of Tunis., Results: Data from 32 children (14 boys and 18 girls) were collected. The diagnosis was made during the first year of life in 28 cases. Meconium ileus was found in 5 cases, respiratory manifestations in 22 cases, chronic diarrhea in 19 cases, faltering growth in 17 cases and a pseudo Barter syndrome in 2 cases. The sweat chloride test was positive in all cases. The most frequent mutation was F508del (56% of cases). Respiratory complications marked the outcome. Among our 32 patients, 15 patients (50%) died at an average age of 5 years and 3 months, mainly due to respiratory failure. The mean age of the surviving patients was 5 years., Conclusion: Cystic fibrosis prognosis is poor in our series compared to developed countries due to the longer diagnostic delay and the limited therapeutic options.
- Published
- 2018
- Full Text
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41. Flexible bronchoscopy contribution in the approach of diagnosis and treatment of children's respiratory diseases: the experience of a unique pediatric unit in Tunisia.
- Author
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Hamouda S, Oueslati A, Belhadj I, Khalsi F, Tinsa F, and Boussetta K
- Subjects
- Adolescent, Bronchoalveolar Lavage, Bronchoscopy methods, Child, Child, Preschool, Female, Foreign Bodies diagnosis, Foreign Bodies epidemiology, Humans, Infant, Infant, Newborn, Intensive Care Units, Pediatric, Male, Respiratory System Abnormalities diagnosis, Respiratory System Abnormalities epidemiology, Respiratory System Abnormalities therapy, Retrospective Studies, Treatment Outcome, Tunisia epidemiology, Bronchoscopy statistics & numerical data, Respiratory Tract Diseases diagnosis, Respiratory Tract Diseases therapy
- Abstract
Objective: Our study aimed at assessing the role of flexible bronchoscopy (FB) in improving diagnosis and management of children's respiratory conditions in the pediatric unit of FB, newly created and unique in Tunisia., Methods: Retrospective study including all the FB achieved in our pediatric unit from 2009 to 2014., Results: We performed 365 FB in 333 patients aged 46 months on average (1 month - 15 years), often under conscious anesthesia (81.6%). FB was performed for diagnostic purposes in 341 cases and for therapeutic purposes in 24 cases. Eight anatomical abnormalities were revealed in 22 patients. An intraluminal bronchial obstruction was found in 71 FB, mainly due to a foreign body (n=36). A vascular anomaly was responsible for nine cases out of 17 extraluminal obstructions. Airways malacia was observed in 60 FB. Bronchoalveolar lavage was performed in 196 cases. It was determinant in 43.9% of the cases. FB was of great diagnostic value in 74.8% of the cases. It influenced the management of the patients in 58% of the cases. The FB for therapeutic purposes was beneficial in all cases. Few complications occurred (5.5%)., Conclusion: FB is a safe tool providing precious diagnostic and/or therapeutic help for the clinician.
- Published
- 2016
- Full Text
- View/download PDF
42. A double-blind randomized trial of wound and intercostal space infiltration with ropivacaine during breast cancer surgery: effects on chronic postoperative pain.
- Author
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Albi-Feldzer A, Mouret-Fourme E E, Hamouda S, Motamed C, Dubois PY, Jouanneau L, and Jayr C
- Subjects
- Aged, Amides administration & dosage, Analgesics, Opioid therapeutic use, Anesthetics, Local administration & dosage, Chronic Disease, Double-Blind Method, Female, Follow-Up Studies, Humans, Injections, Middle Aged, Neuralgia prevention & control, Pain Measurement, Postoperative Complications prevention & control, Postoperative Complications psychology, Postoperative Nausea and Vomiting epidemiology, Ropivacaine, Sufentanil therapeutic use, Amides therapeutic use, Anesthesia, Local methods, Anesthetics, Local therapeutic use, Breast Neoplasms surgery, Intercostal Muscles, Pain, Postoperative drug therapy, Pain, Postoperative prevention & control
- Abstract
Background: The efficacy of local anesthetic wound infiltration for the treatment of acute and chronic postoperative pain is controversial and there are no detailed studies. The primary objective of this study was to evaluate the influence of ropivacaine wound infiltration on chronic pain after breast surgery., Methods: In this prospective, randomized, double-blind, parallel-group, placebo-controlled study, 236 patients scheduled for breast cancer surgery were randomized (1:1) to receive ropivacaine or placebo infiltration of the wound, the second and third intercostal spaces and the humeral insertion of major pectoralis. Acute pain, analgesic consumption, nausea and vomiting were assessed every 30 min for 2 h in the postanesthesia care unit and every 6 h for 48 h. Chronic pain was evaluated 3 months, 6 months, and 1 yr after surgery by the brief pain inventory, hospital anxiety and depression, and neuropathic pain questionnaires., Results: Ropivacaine wound infiltration significantly decreased immediate postoperative pain for the first 90 min, but did not decrease chronic pain at 3 months (primary endpoint), or at 6 and 12 months postoperatively. At 3 months, the incidence of chronic pain was 33% and 27% (P = 0.37) in the ropivacaine and placebo groups, respectively. During follow-up, brief pain inventory, neuropathic pain, and anxiety increased over time in both groups (P < 0.001) while depression remained stable. No complications occurred., Conclusion: This multicenter, prospective study shows that ropivacaine wound infiltration after breast cancer surgery decreased immediate postoperative pain but did not decrease chronic pain at 3, 6, and 12 months postoperatively.
- Published
- 2013
- Full Text
- View/download PDF
43. Prognosis of acute respiratory distress syndrome in neutropenic cancer patients.
- Author
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Mokart D, van Craenenbroeck T, Lambert J, Textoris J, Brun JP, Sannini A, Chow-Chine L, Hamouda S, Fouché L, Ettori F, Faucher M, and Blache JL
- Subjects
- Adult, Aged, Female, France, Hospital Mortality, Humans, Intensive Care Units, Male, Middle Aged, Neoplasms complications, Neutropenia complications, Prognosis, Prospective Studies, Respiratory Distress Syndrome etiology, Risk Factors, Anti-Bacterial Agents therapeutic use, Neoplasms mortality, Neutropenia mortality, Respiratory Distress Syndrome mortality
- Abstract
To date, no study has been specifically designed to identify determinants of death in neutropenic cancer patients presenting with acute respiratory distress syndrome (ARDS). The aim of this study was to identify early predictive factors of 28-day mortality in these patients. Factors associated with 28-day mortality during intensive care unit (ICU) stay were also described. 70 consecutive cancer patients with ARDS and neutropenia were prospectively analysed over a 6-yr period. Mortality at 28 days was 63%. Factors independently associated with good prognosis were: lobar ARDS (OR 0.10, 95% CI 0.02-0.48), use of initial antibiotic treatment active on difficult to treat bacteria (ticarcillin-resistant Pseudomonas aeruginosa, Stenotrophomonas maltophilia or extended-spectrum β-lactamase-producing strains) (OR 0.08, 95% CI 0.02-0.33) and first-line chemotherapy (OR 0.08, 95% CI 0.02-0.37). During the ICU stay, mortality was associated with the markers of organ dysfunctions, the absence of neutropenia recovery and the use of vasopressors. During the first 3 weeks, the conditional probability of discharge alive from ICU did not decrease. At ICU admission, first-line chemotherapy, lobar ARDS and antibiotic treatment active on difficult-to-treat bacteria were associated with survival. During ICU stay, mortality was associated with organ dysfunctions and use of vasopressors. Most survivors have an ICU stay of >3 weeks.
- Published
- 2012
- Full Text
- View/download PDF
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