Attitudes et perceptions des patients à l'égard de la recherche et de leurs droits : étude pilote au Moyen-Orient RESUME La surveillance éthique et réglementaire de la recherche peut ne pas être optimale dans les pays à revenu faible et intermédiaire. Afin de déterminer les attitudes et les perceptions des patients à l'égard de la participation à la recherche et des perceptions de leurs droits, nous avons recruté 202 participants dans des hôpitaux en Arabie saoudite, en Égypte, au Liban et au Soudan, et leur avons demandé de compléter un questionnaire évaluant leurs attitudes et perceptions à ce sujet. Environ 20 % croyaient qu'il arrivait que des médecins mènent des recherches sur des patients sans leur consentement, et 35 % pensaient que si les participants se retiraient du processus de recherche, ils ne bénéficieraient pas de soins médicaux de qualité. Plus de 85 % pensaient qu'ils devaient avoir droit à la confidentialité de leurs données, à des soins médicaux gratuits en cas d'incident durant la recherche et qu'ils devaient pouvoir poser des questions. Près de la moitié étaient d'avis qu'ils avaient le droit de se retirer de la recherche sans être pénalisés, et environ 75 % pensaient qu'ils pouvaient adresser des plaintes sans craindre de subir des préjudices. Les participants illettrés ou sans emploi étaient moins susceptibles d'évaluer leurs droits que les autres participants. To determine patients' attitudes and perceptions toward research participation and perceptions of their rights, we recruited 202 participants from hospitals in Egypt, Lebanon, Saudi Arabia and Sudan and asked them to complete a questionnaire assessing attitudes and perceptions. Around 20% believed that doctors sometimes perform research on patients without their knowledge and 35% believed that if participants withdrew from the research they would not receive good medical care. Over 85% believed that they should have rights regarding confidentiality of data, free medical care if injured during the research and asking questions. Almost half believed they have a right to withdraw without penalty and around 75% believed they could make complaints without fear of harm. Those who were illiterate or unemployed were less likely to appreciate their rights compared with their counterparts. ‫األوسط‬ ‫الرشق‬ ‫من‬ ‫جتريبية‬

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The aim of this study was to investigate the possible effect of sex steroid deficiency on the mucosa of rat tongue as well as the influence of Tibolone. Methods: The tongue mucosa of ovariectomized rats (OVX) was compared to sham-operated rats by histology, immunohistochemistry and electron microscopy. The same evaluation was also performed after hormone replacement therapy. Results: The OVX animals demonstrated significant degenerative changes of tongue mucosa such as reduced thickness of epithelium with an irregular, significantly thinner keratinized surface. Partial disappearance of lingual papilla with irregular epithelial ridges were also noted. At ultrastructural level there were wide intercellular spaces, swollen and/or degenerated mitochondria, irregular dense nuclei, dilated perinuclear cisternae, cytoplasmic vacuolization and decreased tonofillament aggregations. The results from immunohistochemistry showed the possibility that the turnover period was prolonged in OVX rats. The degenerative changes of tongue mucosa were inhibited after administration of Tibolone. Conclusions: The overall results suggest that sex steroids have a specific role in the maintenance of normal tongue mucosa, and its deficiency deteriorates tongue mucosa ultrastructure and histology. Tibolone has a mild estrogenic action and has a good supportive effect on tongue structure.

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