31 research outputs found
Retentissement du travail postĂ© sur lâĂ©tat de santĂ© et le bien-ĂȘtre des professionnels de la santĂ© au Centre hospitalier provincial de TĂ©touan en 2021
Le travail postĂ© est devenu frĂ©quent dans la sociĂ©tĂ© contemporaine. Cet horaire va Ă l'encontre du rythme de vie habituel. Ce qui engendre des altĂ©rations de la santĂ© des professionnels, en raison de la dĂ©synchronisation des rythmes circadiens. Lâobjectif est dâexplorer le retentissement du travail postĂ© chez les professionnels de santĂ© au niveau du centre hospitalier provincial de TĂ©touan et de proposer des recommandations rĂ©duisant ses Ă©ventuels risques physiologiques et psychosociaux. Ătude descriptive rĂ©alisĂ©e Ă lâaide dâun questionnaire composĂ© des items sociodĂ©mographiques et professionnels permettant de caractĂ©riser le profil des participants, le rythme de travail, le retentissement sur lâĂ©tat de santĂ© du professionnels, pathologies, contraintes, difficultĂ©s et recommandations, administrĂ© en ligne via Gmail et whatsapp, lors du premier semestre de l'annĂ©e 2021 au niveau du centre hospitalier provincial de TĂ©touan. 43 professionnels de santĂ© ont Ă©tĂ© inclus dans cette Ă©tude. Les rĂ©sultats montrent que 73 % des professionnels de la santĂ© ont du mal Ă assurer cet horaire en raison de diverses pressions physiologiques et psychosociales, une proportion de 76 % a des difficultĂ©s dans lâexercice du travail postĂ© Ă cause du systĂšme de garde astreinte des mĂ©decins spĂ©cialistes et 45 % ne disposent pas de moyens de communication efficaces. Les professionnels de la santĂ© nâont reçu aucune formation sur la gestion du travail postĂ© et 65 % dâentre eux ne reçoivent aucune motivation des chefs hiĂ©rarchiques. Une proportion de 74 % renonce Ă ses activitĂ©s de loisir et 85 % souffre dâune dĂ©gradation de lâĂ©tat de santĂ©. Les problĂšmes de santĂ© les plus frĂ©quents sont les troubles psychologiques (59 %), les troubles de sommeil (62 %), les troubles digestifs (23%), les cĂ©phalĂ©es et le stress (45 %). Les recommandations des professionnels de la santĂ© se rĂ©sument dans la nĂ©cessitĂ© d'inclure un programme de bien-ĂȘtre et de motivation pour toutes les Ă©quipes qui assurent le travail postĂ©. Cette Ă©tude confirme que le travail postĂ© a un retentissement nĂ©faste sur lâĂ©tat physique et psychosocial des professionnels de la santĂ©.
Caractérisation antibiotypique et biochimique des souches marocaines de Salmonella enteritidis d'origine humaine et alimentaire
Lâantibiotypie et la biotypie des souches marocaines de Salmonella enteritidis dâorigine humaine et alimentaire ont Ă©tĂ© investiguĂ©es. Cinquante et une souches ont Ă©tĂ© isolĂ©es entre janvier 96 et dĂ©cembre 97. Parmi les 31 souches humaines, dix souches se sont rĂ©vĂ©lĂ©es rĂ©sistantes aux antibiotiques dont quatre Ă©taient rĂ©sistantes Ă plus dâun antibiotique. Parmi les 20 souches alimentaires, onze Ă©taient rĂ©sistantes dont 6 rĂ©sistantes Ă plus dâun antibiotique. Les rĂ©sultats obtenus montrent une similitude avec les souches mĂ©diterranĂ©ennes. Les profils biochimiques atypiques Ă©taient rencontrĂ©s aussi bien pour les souches alimentaires que pour les souches humaines. Lâatypie affecte aussi bien les souches sensibles que les souches rĂ©sistantes aux antibiotiques. Les caractĂšres atypiques concernent le mĂ©tabolisme de certains sucres et acides aminĂ©s
Silicon-hydroxyapatite bioactive coatings (Si-HA) from diatomaceous earth and silica. Study of adhesion and proliferation of osteoblast-like cells
The aim of this study consisted on investigating
the influence of silicon substituted hydroxyapatite (SiâHA)
coatings over the human osteoblast-like cell line (SaOS-2)
behaviour. Diatomaceous earth and silica, together with
commercial hydroxyapatite were respectively the silicon
and HA sources used to produce the SiâHA coatings. HA
coatings with 0 wt% of silicon were used as control of the
experiment. Pulsed laser deposition (PLD) was the selected
technique to deposit the coatings. The SiâHA thin films
were characterized by Fourier Transformed Infrared
Spectroscopy (FTIR) demonstrating the efficient transfer of
Si to the HA structure. The in vitro cell culture was
established to assess the cell attachment, proliferation and
osteoblastic activity respectively by, Scanning Electron
Microscopy (SEM), DNA and alkaline phosphatase (ALP)
quantification. The SEM analysis demonstrated a similar
adhesion behaviour of the cells on the tested materials and
the maintenance of the typical osteoblastic morphology
along the time of culture. The SiâHA coatings did not
evidence any type of cytotoxic behaviour when compared
with HA coatings. Moreover, both the proliferation rate
and osteoblastic activity results showed a slightly better
performance on the SiâHA coatings from diatoms than on
the SiâHA from silica.This work was supported by the UE-Interreg IIIA (SP1.P151/03) Proteus project and Xunta de Galicia ( Projects: 2006/12 and PGIDITO5PXIC30301PN)
The influence of bisphosphonates on human osteoblast migration and integrin aVb3/tenascin C gene expression in vitro
<p>Abstract</p> <p>Background</p> <p>Bisphosphonates are therapeutics of bone diseases, such as Paget's disease, multiple myeloma or osteoclastic metastases. As a severe side effect the bisphosphonate induced osteonecrosis of the jaw (BONJ) often requires surgical treatment and is accompanied with a disturbed wound healing.</p> <p>Therefore, the influence on adhesion and migration of human osteoblasts (hOB) after bisphosphonate therapy has been investigated by morphologic as well as gene expression methods.</p> <p>Methods</p> <p>By a scratch wound experiment, which measures the reduction of defined cell layer gap, the morphology and migration ability of hOB was evaluated. A test group of hOB, which was stimulated by zoledronate 5 Ă 10<sup>-5</sup>M, and a control group of unstimulated hOB were applied. Furthermore the gene expression of integrin aVb3 and tenascin C was quantified by Real-Time rtPCR at 5data points over an experimental period of 14 days. The bisphosphonates zoledronate, ibandronate and clodronate have been compared with an unstimulated hOB control.</p> <p>Results</p> <p>After initially identical migration and adhesion characteristics, zoledronate inhibited hOB migration after 50 h of stimulation. The integrinavb3 and tenascin C gene expression was effected by bisphosphonates in a cell line dependent manner with decreased, respectively inconsistent gene expression levels over time. The non-nitrogen containing bisphosphonates clodronate led to decreased gene expression levels.</p> <p>Conclusion</p> <p>Bisphosphonates seem to inhibit hOB adhesion and migration. The integrin aVb3 and tenascin C gene expression seem to be dependent on the cell line. BONJ could be enhanced by an inhibition of osteoblast adhesion and migration. The gene expression results, however, suggest a cell line dependent effect of bisphosphonates, which could explain the interindividual differences of BONJ incidences.</p