68 results on '"R. Rafik"'
Search Results
2. IL-6 as a Surrogate Biomarker: The IL-6 Clinical Value for the Diagnosis of Insulin Resistance and Type 2 Diabetes
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R Rafik, RR Andrew, RR Mark, and Alaa I
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Cardiology and Cardiovascular Medicine - Published
- 2022
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3. Sudden Cardiac Death Prediction in Arrhythmogenic Right Ventricular Cardiomyopathy: A Multinational Collaboration
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Cadrin-Tourigny, J. (Julia), Bosman, L.P. (Laurens P.), Wang, W. (Weijia), Tadros, R. (Rafik), Bhonsale, A. (Aditya), Bourfiss, M. (Mimount), Lie, ØH. (Øyvind H), Saguner, A.M. (Ardan M.), Svensson, A. (Anneli), Andorin, A. (Antoine), Tichnell, C. (Crystal), Murray, B. (Brittney), Zeppenfeld, K. (Katja), Berg, M.P. (Maarten) van den, Asselbergs, F.W. (Folkert W.), Wilde, A.A.M. (Arthur), Krahn, A.D. (Andrew D.), Talajic, M. (Mario), Rivard, L. (Lena), Chelko, S. (Stephen), Zimmerman, S.L. (Stefan L.), Kamel, M.S. (Mohamed), Crosson, J.E. (Jane E.), Judge, D.P. (Daniel), Yap, S.-C. (Sing-Chien), Van der Heijden, J.F. (Jeroen F.), Tandri, H. (Harikrishna), Jongbloed, J.D.H. (Jan), van Tintelen, J.P. (J Peter), Platonov, P.G. (Pyotr G.), Duru, F. (Firat), Haugaa, K.H. (Kristina H.), Khairy, P. (Paul), Hauer, R.N.W. (Richard), Calkins, H. (Hugh), Riele, A.S. (Anneline) te, James, C.A. (Cynthia A.), Cadrin-Tourigny, J. (Julia), Bosman, L.P. (Laurens P.), Wang, W. (Weijia), Tadros, R. (Rafik), Bhonsale, A. (Aditya), Bourfiss, M. (Mimount), Lie, ØH. (Øyvind H), Saguner, A.M. (Ardan M.), Svensson, A. (Anneli), Andorin, A. (Antoine), Tichnell, C. (Crystal), Murray, B. (Brittney), Zeppenfeld, K. (Katja), Berg, M.P. (Maarten) van den, Asselbergs, F.W. (Folkert W.), Wilde, A.A.M. (Arthur), Krahn, A.D. (Andrew D.), Talajic, M. (Mario), Rivard, L. (Lena), Chelko, S. (Stephen), Zimmerman, S.L. (Stefan L.), Kamel, M.S. (Mohamed), Crosson, J.E. (Jane E.), Judge, D.P. (Daniel), Yap, S.-C. (Sing-Chien), Van der Heijden, J.F. (Jeroen F.), Tandri, H. (Harikrishna), Jongbloed, J.D.H. (Jan), van Tintelen, J.P. (J Peter), Platonov, P.G. (Pyotr G.), Duru, F. (Firat), Haugaa, K.H. (Kristina H.), Khairy, P. (Paul), Hauer, R.N.W. (Richard), Calkins, H. (Hugh), Riele, A.S. (Anneline) te, and James, C.A. (Cynthia A.)
- Abstract
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is associated with ventricular arrhythmias (VA) and sudden cardiac death (SCD). A model was recently developed to predict incident sustained VA in patients with ARVC. However, since this outcome may overestimate the risk for SCD, we aimed to specifically predict life-threatening VA (LTVA) as a closer surrogate for SCD. METHODS: We assembled a retrospective cohort of definite ARVC cases from 15 centers in North America and Europe. Association of 8 prespecified clinical predictors with LTVA (SCD, aborted SCD, sustained, or implantable cardioverter-defibrillator treated ventricular tachycardia >250 beats per minute) in follow-up was assessed by Cox regression with backward selection. Candidate variables included age, sex, prior sustained VA (≥30s, hemodynamically unstable, or implantable cardioverter-defibrillator treated ventricular tachycardia; or aborted SCD), syncope, 24-hour premature ventricular complexes count, the number of anterior and inferior leads with T-wave inversion, left and right ventricular ejection fraction. The resulting model was internally validated using bootstrapping. RESULTS: A total of 864 patients with definite ARVC (40±16 years; 53% male) were included. Over 5.75 years (interquartile range, 2.77-10.58) of follow-up, 93 (10.8%) patients experienced LTVA including 15 with SCD/aborted SCD (1.7%). Of the 8 prespecified clinical predictors, only 4 (younger age, male sex, premature ventricular complex count, and number of leads with T-wave inversion) were associated with LTVA. Notably, prior sustained VA did not predict subsequent LTVA (P=0.850). A model including only these 4 predictors had an optimism-corrected C-index of 0.74 (95% CI, 0.69-0.80) and calibration slope of 0.95 (95% CI, 0.94-0.98) indicating minimal over-optimism. CONCLUSION
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- 2021
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4. Different secretion patterns of matrix metalloproteinases and IL-8 and effect of corticotropin-releasing hormone in preterm and term cervical fibroblasts
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Dubicke, A., Akerud, A., Sennstrom, M., Hamad, R. Rafik, Bystrom, B., Malmstrom, A., and Ekman-Ordeberg, G.
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- 2008
5. Novel Coronavirus Cough Database: NoCoCoDa
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Cohen-Mcfarlane, M. (Madison), Goubran, R. (Rafik A.), Knoefel, F. (Frank), Cohen-Mcfarlane, M. (Madison), Goubran, R. (Rafik A.), and Knoefel, F. (Frank)
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The current pandemic associated with the novel coronavirus (COVID-19) presents a new area of research with its own set of challenges. Creating unobtrusive remote monitoring tools for medical professionals that may aid in diagnosis, monitoring and contact tracing could lead to more efficient and accurate treatments, especially in this time of physical distancing. Audio based sensing methods can address this by measuring the frequency, severity and characteristics of the COVID-19 cough. However, the feasibility of accumulating coughs directly from patients is low in the short term. This article introduces a novel database (NoCoCoDa), which contains COVID-19 cough events obtained through public media intervie
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- 2020
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6. Semi-autonomous vehicles as a cognitive assistive device for older adults
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Knoefel, F. (Frank), Wallace, B. (Bruce), Goubran, R. (Rafik A.), Sabra, I. (Iman), Marshall, S. (Shawn), Knoefel, F. (Frank), Wallace, B. (Bruce), Goubran, R. (Rafik A.), Sabra, I. (Iman), and Marshall, S. (Shawn)
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Losing the capacity to drive due to age-related cognitive decline can have a detrimental impact on the daily life functioning of older adults living alone and in remote areas. Semi-autonomous vehicles (SAVs) could have the potential to preserve driving independence of this population with high health needs. This paper explores if SAVs could be used as a cognitive assistive device for older aging drivers with cognitive challenges. We illustrate the impact of age-related changes of cognitive functions on driving capacity. Furthermore, following an overview on the current state of SAVs, we propose a model for connecting cognitive health needs of older drivers to SAVs. The model demonstrates the connections between cognitive changes experienced by aging drivers, their impact on actual driving, car sensors' features, and vehicle automation. Finally, we present challenges that should be considered when using the constantly changing smart vehicle technology, adapting it to aging drivers and vice versa. This paper sheds light on age-related cognitive characteristics that should be considered when developing future SAVs manufacturing policies which may potentially help decrease the impact of cognitive change on older adult drivers.
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- 2019
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7. Predicting cardiac electrical response to sodium-channel blockade and Brugada syndrome using polygenic risk scores
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Tadros, R. (Rafik), Tan, H.L. (Hanno), El Mathari, S. (Sulayman), Kors, J.A. (Jan), Postema, P.G. (Pieter), Lahrouchi, N. (Najim), Beekman, L. (Leander), Radivojkov-Blagojevic, M. (Milena), Amin, A.S. (Ahmad S.), Meitinger, T. (Thomas), Tanck, M.W.T. (Michael), Wilde, A.A.M. (Arthur), Bezzina, C.R. (Connie R.), Tadros, R. (Rafik), Tan, H.L. (Hanno), El Mathari, S. (Sulayman), Kors, J.A. (Jan), Postema, P.G. (Pieter), Lahrouchi, N. (Najim), Beekman, L. (Leander), Radivojkov-Blagojevic, M. (Milena), Amin, A.S. (Ahmad S.), Meitinger, T. (Thomas), Tanck, M.W.T. (Michael), Wilde, A.A.M. (Arthur), and Bezzina, C.R. (Connie R.)
- Abstract
AIMS: Sodium-channel blockers (SCBs) are associated with arrhythmia, but variability of cardiac electrical response remains unexplained. We sought to identify predictors of ajmaline-induced PR and QRS changes and Type I Brugada syndrome (BrS) electrocardiogram (ECG). METHODS AND RESULTS: In 1368 patients that underwent ajmaline infusion for suspected BrS, we performed measurements of 26 721 ECGs, dose-response mixed modelling and genotyping. We calculated polygenic risk scores (PRS) for PR interval (PRSPR), QRS duration (PRSQRS), and Brugada syndrome (PRSBrS) derived from published genome-wide association studies and used regression analysis to identify predictors of ajmaline dose related PR change (slope) and QRS slope. We derived and validated using bootstrapping a predictive model for ajmaline-induced Type I BrS ECG. Higher PRSPR, baseline PR, and female sex are associated with more pronounced PR slope, while PRSQRS and age are positively associated with QRS slope (P < 0.01 for all). PRSBrS, baseline QRS duration, presence of Type II or III BrS ECG at baseline, and family history of BrS are independently associated with the occurrence of a Type I BrS ECG, with good predictive accuracy (optimism-corrected C-statistic 0.74). CONCLUSION: We show for the first time that genetic factors underlie the variability of cardiac electrical response to SCB. PRSBrS, family history, and a baseline ECG can predict the development of a
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- 2019
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8. A new prediction model for ventricular arrhythmias in arrhythmogenic right ventricular cardiomyopathy
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Cadrin-Tourigny, J. (Julia), Bosman, L.P. (Laurens P.), Nozza, A. (Anna), Wang, W. (Weijia), Tadros, R. (Rafik), Bhonsale, A. (Aditya), Bourfiss, M. (Mimount), Fortier, A. (Annik), Lie, ØH. (Øyvind H), Saguner, A.M. (Ardan M.), Svensson, A. (Anneli), Andorin, A. (Antoine), Tichnell, C. (Crystal), Murray, B. (Brittney), Zeppenfeld, K. (Katja), Berg, M.P. (Maarten) van den, Asselbergs, F.W. (Folkert), Wilde, A.A.M. (Arthur), Krahn, A.D. (Andrew D.), Talajic, M. (Mario), Rivard, L. (Lena), Chelko, S. (Stephen), Zimmerman, S.L. (Stefan), Kamel, M.S. (Mohamed), Crosson, J.E. (Jane E.), Judge, D.P. (Daniel), Yap, S.-C. (Sing-Chien), Heijden, J.F. (Jeroen) van der, Tandri, H. (Harikrishna), Jongbloed, J.D.H. (Jan), Guertin, M.-C. (Marie-Claude), Tintelen, J.P. (Peter) van, Platonov, P.G. (Pyotr G.), Duru, F. (Firat), Haugaa, K.H. (Kristina H.), Khairy, P. (Paul), Hauer, R.N.W. (Richard), Calkins, H. (Hugh), Riele, A.S. (Anneline) te, James, C.A. (Cynthia), Cadrin-Tourigny, J. (Julia), Bosman, L.P. (Laurens P.), Nozza, A. (Anna), Wang, W. (Weijia), Tadros, R. (Rafik), Bhonsale, A. (Aditya), Bourfiss, M. (Mimount), Fortier, A. (Annik), Lie, ØH. (Øyvind H), Saguner, A.M. (Ardan M.), Svensson, A. (Anneli), Andorin, A. (Antoine), Tichnell, C. (Crystal), Murray, B. (Brittney), Zeppenfeld, K. (Katja), Berg, M.P. (Maarten) van den, Asselbergs, F.W. (Folkert), Wilde, A.A.M. (Arthur), Krahn, A.D. (Andrew D.), Talajic, M. (Mario), Rivard, L. (Lena), Chelko, S. (Stephen), Zimmerman, S.L. (Stefan), Kamel, M.S. (Mohamed), Crosson, J.E. (Jane E.), Judge, D.P. (Daniel), Yap, S.-C. (Sing-Chien), Heijden, J.F. (Jeroen) van der, Tandri, H. (Harikrishna), Jongbloed, J.D.H. (Jan), Guertin, M.-C. (Marie-Claude), Tintelen, J.P. (Peter) van, Platonov, P.G. (Pyotr G.), Duru, F. (Firat), Haugaa, K.H. (Kristina H.), Khairy, P. (Paul), Hauer, R.N.W. (Richard), Calkins, H. (Hugh), Riele, A.S. (Anneline) te, and James, C.A. (Cynthia)
- Abstract
AIMS: Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVC) is characterized by ventricular arrhythmias (VAs) and sudden cardiac death (SCD). We aimed to develop a model for individualized prediction of incident VA/SCD in ARVC patients. METHODS AND RESULTS: Five hundred and twenty-eight patients with a definite diagnosis and no history of sustained VAs/SCD at baseline, aged 38.2 ± 15.5 years, 44.7% male, were enrolled from five registries in North America and Europe. Over 4.83 (interquartile range 2.44-9.33) years of follow-up, 146 (27.7%) experienced sustained VA, defined as SCD, aborted SCD, sustained ventricular tachycardia, or appropriate implantable cardioverter-defibrillator (ICD) therapy. A prediction model estimating annual VA risk was developed using Cox regression with internal validation. Eight potential predictors were pre-specified: age, sex, cardiac syncope in the prior 6 months, non-sustained ventricular tachycardia, number of premature ventricular complexes in 24 h, number of leads with T-wave inversion, and right and left ventricular ejection fractions (LVEFs). All except LVEF were retained in the final model. The model accurately distinguished patients with and without events, with an optimism-corrected C-index of 0.77 [95% confidence interval (CI) 0.73-0.81] and minimal over-optimism [calibration slope of 0.93 (95% CI 0.92-0.95)]. By decision curve analysis, the clinical benefit of the model was superior to a current consensus-based ICD placement algorithm with a 20.6% reduction of ICD placements with the same proportion of protected patients (P < 0.001). CONCLUSION: Using the largest cohort of patients with ARVC and no prior VA, a prediction model using readily available clinical parameters was devised to estimate VA risk and guide decisions regarding primary prevention ICDs (www.arvcrisk.com).
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- 2019
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9. Carleton University Research and International Review 2019
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Carl, Julie, Goubran, R. (Rafik A.), Crocker, S. (Sandra), Schwartz, K. (Karen), Lawrence, Andrea, Carl, Julie, Goubran, R. (Rafik A.), Crocker, S. (Sandra), Schwartz, K. (Karen), and Lawrence, Andrea
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- 2019
10. Une cause rare de syndrome de la queue de cheval : le mal de Pott
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R. Bouchentouf and R. Rafik
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business.industry ,Emergency Medicine ,Medicine ,business - Published
- 2016
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11. ACO2 homozygous missense mutation associated with complicated hereditary spastic paraplegia
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Bouwkamp, C.G. (Christian), Afawi, Z. (Zaid), Fattal-Valevski, A. (Aviva), Krabbendam, I.E. (Inge E.), Rivetti, S. (Stefano), Masalha, R. (Rafik), Quadri, M. (Marialuisa), Breedveld, G.J. (Guido), Mandel, H., Tailakh, M.A. (Muhammad Abu), Beverloo, H.B. (Berna), Stevanin, G. (Giovanni), Brice, A., IJcken, W.F.J. (Wilfred) van, Vernooij, M.W. (Meike), Dolga, A.M. (Amalia), Vrij, F.M.S. (Femke), Bonifati, V. (Vincenzo), Kushner, S.A. (Steven), Bouwkamp, C.G. (Christian), Afawi, Z. (Zaid), Fattal-Valevski, A. (Aviva), Krabbendam, I.E. (Inge E.), Rivetti, S. (Stefano), Masalha, R. (Rafik), Quadri, M. (Marialuisa), Breedveld, G.J. (Guido), Mandel, H., Tailakh, M.A. (Muhammad Abu), Beverloo, H.B. (Berna), Stevanin, G. (Giovanni), Brice, A., IJcken, W.F.J. (Wilfred) van, Vernooij, M.W. (Meike), Dolga, A.M. (Amalia), Vrij, F.M.S. (Femke), Bonifati, V. (Vincenzo), and Kushner, S.A. (Steven)
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Objective: To identify the clinical characteristics and genetic etiology of a family affected with hereditary
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- 2018
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12. Détresse respiratoire aiguë avec hémoptysie chez un enfant de 11ans
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R. Rafik, Mustapha Idrissi Rguibi, and Aziz Ouarssani
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business.industry ,Medicine ,Radiology, Nuclear Medicine and imaging ,business - Published
- 2014
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13. Increased levels of an apoptotic product in the sera from women with pre‐eclampsia
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M. Sten‐Linder, Katarina Bremme, R. Rafik Hamad, and Anders Kallner
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Adult ,Clinical Biochemistry ,Apoptosis ,Enzyme-Linked Immunosorbent Assay ,Biology ,Andrology ,Cytokeratin ,Pre-Eclampsia ,Antigen ,Pregnancy ,Placenta ,medicine ,Humans ,reproductive and urinary physiology ,Eclampsia ,Trophoblast ,General Medicine ,medicine.disease ,female genital diseases and pregnancy complications ,medicine.anatomical_structure ,Case-Control Studies ,embryonic structures ,Immunology ,Gestation ,Female - Abstract
Pre-eclampsia is associated with both maternal and foetal complications. Several studies have shown increased trophoblast apoptosis in the placenta of women with this condition. The aim of this study was to investigate whether increased apoptosis can be detected as elevated levels of an apoptotic product in serum samples from women with pre-eclampsia. For this purpose, we used the M30-Apoptosense ELISA assay, which measures a neo-epitope of cytokeratin 18 that is exposed after cleavage by caspases during apoptosis of epithelial cells (M30 antigen). The M30-antigen concentrations were measured in the sera of 15 healthy pregnant women and 15 patients with pre-eclampsia (gestation weeks 24-34). Patients with pre-eclampsia had significantly higher serum M30-antigen concentrations, median 120 U/L, compared to 15 healthy pregnant women matched for pregnancy length, median 104 U/L (p = 0.01). This is consistent with previous findings of increased trophoblast apoptosis in women with pre-eclampsia and raises the possibility that M30-antigen can be used as a serum marker for the severeness of this condition for the mother and child.
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- 2009
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14. Different secretion patterns of matrix metalloproteinases and IL-8 and effect of corticotropin-releasing hormone in preterm and term cervical fibroblasts
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R. Rafik Hamad, Anders Malmström, Anna Åkerud, Aurelija Dubicke, Gunvor Ekman-Ordeberg, Maria Sennström, and Birgitta Byström
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Adult ,Embryology ,medicine.medical_specialty ,Adolescent ,Corticotropin-Releasing Hormone ,Term Birth ,extracellular matrix ,Cervix Uteri ,Biology ,Matrix metalloproteinase ,Gene Expression Regulation, Enzymologic ,Corticotropin-releasing hormone ,Pregnancy ,Internal medicine ,Genetics ,medicine ,Humans ,cervical ripening ,Secretion ,RNA, Messenger ,Interleukin 8 ,Molecular Biology ,Cells, Cultured ,Interleukin-8 ,matrix metalloproteinases ,preterm birth ,Obstetrics and Gynecology ,Interleukin ,Articles ,Cell Biology ,Fibroblasts ,medicine.disease ,cytokines ,Endocrinology ,Reproductive Medicine ,Premature birth ,Premature Birth ,Female ,Biomarkers ,Developmental Biology ,Hormone - Abstract
The aims of the present study were to compare the levels of mRNA and protein expression of matrix metalloproteinase (MMP)-1, -3, -8 and -9 in human cervical tissue in preterm and term labor as well as not in labor and to determine if corticotropin-releasing hormone (CRH) has an effect on MMP-1, -3 and interleukin (IL)-8 secretion in both preterm and term cervical fibroblasts. Cervical biopsies were taken from 60 women: 18 at preterm labor, 7 at preterm not in labor, 18 at term labor and 17 at term not in labor. ELISA and Immulite were used for protein and real-time RT-PCR for mRNA analysis. Cervical fibroblast cultures were incubated for 18 h with different CRH concentrations (10(-13)-10(-6) M). The mRNA expression of MMP-1, -3 and -9 was higher in laboring groups compared with term not in labor. Protein levels of MMP-8 and -9 were higher in term in labor group compared with non-laboring groups. There were no significant differences in mRNA and protein expression between the preterm and respective term control groups. CRH significantly increased secretion of IL-8 in preterm and term cervical fibroblasts compared with controls. The secretion of IL-8 and MMP-1 was significantly higher and MMP-3 secretion lower in preterm cervical fibroblasts. In conclusion, cervical ripening at preterm seems to be a similar inflammatory process as at term with CRH involved. However, preterm and term cervical fibroblasts might have different phenotypes based on different secretion patterns of IL-8, MMP-1 and MMP-3.
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- 2008
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15. Fasciite nécrosante communautaire à Acinetobacter baumannii
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S.M. Hanafi, M.A. Hachimi, A. Mahmoudi, R. Rafik, A. Elkartouti, and L. Louzi
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medicine.medical_specialty ,Debridement ,biology ,business.industry ,medicine.medical_treatment ,Dermatology ,Drug resistance ,medicine.disease ,biology.organism_classification ,Skin transplantation ,Acinetobacter baumannii ,medicine ,Fasciitis ,business - Published
- 2013
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16. Carcinome mucoépidermoïde de la carène chez un patient de 48ans
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Mustapha Idrissi Rguibi, R. Rafik, F. Ait Lhou, Aziz Ouarssani, and M. Smahi
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business.industry ,Medicine ,business - Published
- 2013
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17. Does Thrombin Activatable Fibrinolysis Inhibitor (TAFI) Contribute to Impairment of Fibrinolysis in Patients with Preeclampsia and/or Intrauterine Fetal Growth Retardation?
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Margareta Blombäck, R. Rafik Hamad, Jovan P. Antovic, Aleksandra Antovic, and Katarina Bremme
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Adult ,Carboxypeptidase B2 ,medicine.medical_specialty ,medicine.medical_treatment ,Serum albumin ,Thrombomodulin ,Preeclampsia ,Thrombin ,Pre-Eclampsia ,Pregnancy ,Internal medicine ,Fibrinolysis ,medicine ,Humans ,Serum Albumin ,Transaminases ,Fetal Growth Retardation ,Proteinuria ,biology ,business.industry ,Hematology ,medicine.disease ,Endocrinology ,Coagulation ,Case-Control Studies ,Hemostasis ,Immunology ,biology.protein ,Female ,medicine.symptom ,business ,medicine.drug - Abstract
SummaryThrombin Activatable Fibrinolysis Inhibitor (TAFI) is a relatively recently described glycoprotein (MM 55 KDa) that can be converted into its active form by the thrombin/thrombomodulin complex and potentially inhibits fibrinolysis. Since it represents a link between coagulation and fibrinolysis, TAFI can be expected to play a part in various clinical conditions associated with a thrombotic tendency. Preeclampsia (PE) and intrauterine fetal growth retardation (IUFGR) are fairly common complications of pregnancy that are characterized by hemostatic abnormalities. TAFI antigen and its influence on hemostasis was investigated in 46 women with PE and/or IUFGR and in 16 normal pregnancies. We found a significant decrease of TAFI antigen in the patient group. Using the recently described method Overall Hemostatic Potential (OHP) in plasma, we measured clot lysis time (CLT) and overall fibrinolytic potential (OFP). We found that CLT is prolonged and OFP decreased in patients with PE and/or IUFGR. Since OFP did not increase after addition of the specific inhibitor of TAFI (potato tuber carboxypeptidase inhibitor), it seems that TAFI does not contribute to the impairment of fibrinolysis in these patients. Since serum albumin was decreased together with presence of proteinuria and aminotransferases were increased in the patients, it seems that one explanation for the decrease in TAFI could be reduced hepatic synthesis and an increased loss in urine. It can be speculated that this mechanism can prevent more serious thrombotic complications in patients with PE and/or IUFGR.
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- 2002
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18. Cost-Effectiveness of Easypod™ Device Versus Other Somatotropin Delivery Techniques In Egypt In Treatment of Growth Hormone Deficiency
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MA Hana, R Rafik, MM Hassan, M Raed, El Kholy, N Salah Metwaly, RT Hamza, I Anan, S Abdelghaffar, Mutaz Sheikh Salem, GM Anwar, NH Amr, MF Hafez, AA Elashmawy, H Elsedfy, and S Tawfik
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Pediatrics ,medicine.medical_specialty ,Endocrinology ,Cost effectiveness ,business.industry ,Health Policy ,Internal medicine ,Public Health, Environmental and Occupational Health ,medicine ,medicine.disease ,business ,Growth hormone deficiency - Published
- 2017
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19. Polyradiculonévrite aigüe et infection à Rickettsia conorii
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A. Ouarssani, M. Hachimi, M. Haouri, A. Rouimi, and R. Rafik
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Boutonneuse fever ,Infectious Diseases ,biology ,business.industry ,medicine ,medicine.disease ,business ,Rickettsia conorii ,biology.organism_classification ,Virology - Published
- 2011
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20. Polyradiculonévrite aiguë secondaire à l’isoniazide: à propos d’un cas
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Aziz Ouarssani, R. Rafik, Mustapha Idrissi Rguibi, and Abdelhadi Rouimi
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Embryology ,Cell Biology ,Anatomy ,Developmental Biology - Published
- 2014
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21. Le blood-patch : un remède d’efficacité immédiate pour les céphalées secondaires aux brèches dure-mériennes
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A. Mahmoudi, A. Elkartouti, A. Jaafari, R. Rafik, M. Hannafi, and M.A. Hachimi
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Gynecology ,medicine.medical_specialty ,Anesthesiology and Pain Medicine ,business.industry ,Unnecessary Procedure ,medicine ,General Medicine ,business - Abstract
Resume Objectif L’objectif de notre travail etait d’evaluer la necessite de garder les patients en decubitus dorsal strict apres realisation d’un blood-patch pour traiter les cephalees secondaires aux breches durales apres ponction rachidienne. Patients et methodes Tous les patients adresses pour cephalees postponction rachidienne ont ete inclus dans cette etude observationnelle realisee sur une periode de deux ans. Les patients devaient avoir des cephalees non calmees par un traitement a base d’antalgiques de palier II de l’OMS pendant au moins 48 a 72 heures apres la ponction rachidienne. Le volume de sang autologue injecte etait au maximum de 20 ml, moins en cas de sensation de pesanteur au site d’injection. Apres l’injection, le patient etait autorise a se mettre debout des qu’il le pouvait. Il etait ensuite observe pendant 48 heures dans le service d’hospitalisation. Resultats Vingt et un patients, dont neuf femmes, âges de 16 a 35 ans, ont ete etudies. Les patients avaient recu une rachianesthesie (16 cas), une anesthesie peridurale obstetricale (deux cas) ou une ponction lombaire diagnostique en neurologie (trois cas). Le volume de sang autologue injecte etait de 20 ml pour 19 des 21 patients et 16 et 18 ml pour les deux autres. Les 21 patients ont ressenti un soulagement immediat des cephalees apres le blood-patch et tous ont pu se lever immediatement. Aucune recidive n’a ete observee dans les 48 heures d’observation. Conclusion Notre travail suggere que le maintien pendant deux heures en decubitus dorsal strict des patients n’est pas obligatoire apres la realisation d’un blood-patch.
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- 2009
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22. Paralysie oculomotrice révélant un syndrome hyperéosinophilique essentiel
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R. Mossadeq, Ahmed Bourazza, A. Karouache, H. Ouhabi, N. Boutaleb, R. Rafik, and Jamal Mounach
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Neurology ,Neurology (clinical) - Abstract
Resume Un patient de 42 ans, suivi pour un syndrome depressif, presentait une diplopie avec a l’examen neurologique une paralysie du nerf oculomoteur externe droit, une incoordination au membre superieur gauche et un syndrome neurogene peripherique. La recherche etiologique a conclu a un syndrome hypereosinophilique essentiel. L’evolution fut favorable sous corticotherapie. Les auteurs evoquent les differents mecanismes physiopathologiquesimpliques dans l’atteinte neurologique.
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- 2004
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23. Distribution of tuna larvae in Tunisian east coasts and its environmental scenario
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Koched, W. (Wael), Hattour, A. (Abdallah), Alemany, F. (Francisco), Zarrad, R. (Rafik), and García-García, A. (Alberto)
- Subjects
Centro Oceanográfico de Baleares ,Central Mediterranean ,Tunisian waters ,Spawning habitat ,Environmental parameters ,Spatial distribution ,Tuna larvae ,Medio Marino - Abstract
Early life stages of tuna species were investigated along the Tunisian east coast during the summer of 2008 by means of a larval survey conducted on board the R/V HANNIBAL. In this study we define the spawning grounds of tuna fishes in Tunisian waters and relate the tuna larvae spatial distribution to the hydrographic features and other environmental parameters. A total of 282 larvae of Atlantic bluefin tuna (Thunnus thynnus, Linnaeus, 1758), 902 of bullet tuna (Auxis rochei, Risso, 1810) and 19 of little tuna (Euthynnus alletteratus, Raf, 1810), were identified. High larval concentrations of bluefin tuna were located offshore (mean = 200 ± 18 m), at sea surface temperatures ranging between 23.7 to 25.3°C, whereas the highest concentrations of bullet and little tuna were located in shallower waters (mean = 135 ± 75 m), at sea surface temperature ranging between 25.1 to 25.9°C. According to their preference for waters with surface salinities ranging between 37.1 and 37.8, spawning of these species seems to occur mainly in mixed waters. Stations where tuna larvae were collected showed oxygen concentrations between 6.55 and 6.85 mg l-1, as well as low turbidity and chlorophyll a values, from 0.2 to 0.5 NTU a d less than 1 mg m-3, respectively. These three environmental factors were weakly correlated with tuna larvae abundance, Sí
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- 2012
24. [Acute polyradiculoneuropathy and Rickettsia conorii infection]
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R, Rafik, M, Hachimi, A, Ouarssani, M, Haouri, and A, Rouimi
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Male ,Acute Disease ,Polyradiculoneuropathy ,Humans ,Middle Aged ,Boutonneuse Fever - Published
- 2011
25. [Blood-patch: immediate effective remedy for headaches secondary to dura mater injury]
- Author
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M A, Hachimi, A, Elkartouti, R, Rafik, A, Jaafari, M, Hannafi, and A, Mahmoudi
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Adult ,Anesthesia, Epidural ,Male ,Adolescent ,Posture ,Puerperal Disorders ,Analgesics, Non-Narcotic ,Unnecessary Procedures ,Anesthesia, Spinal ,Combined Modality Therapy ,Young Adult ,Pregnancy ,Supine Position ,Anesthesia, Obstetrical ,Humans ,Female ,Prospective Studies ,Post-Dural Puncture Headache ,Blood Patch, Epidural - Abstract
The aim of this study was to evaluate if bed rest during 2 h in a supine posture is required to improve the efficacy of the blood-patch procedure.Patients whose postdural puncture headache remained distressing 48 to 72 h after dural tap despite the use of stage II WHO painkillers were included in this prospective single center study lasted for a 2-year period. The patient's own blood injection in the epidural space was performed until discomfort or pain in the lumbar area occurred or was limited to 20 ml if no such sensation was observed. After blood had been injected, the patient was allowed to stand up as soon as desired, under close observation. The patient was then discharged to the ward for a 48 h follow-up.Nine female and 12 male patients (age: 16-35 years) were included. Headache occurred after spinal anaesthesia in 16 cases, epidural analgesia for delivery in two cases and lumbar puncture by during neurological workup in three cases. Autologous blood volume injected was 20 ml in 19 patients and was reduced to 18 and 16 ml, respectively, in two patients due to lumbar pain. All blood-patches were technically uneventful and led to immediate headache relief, associated with a feeling of wellbeing and desire to stand up. The 48 following hours were without any incident and painkillers were no more needed.In this prospective study, blood-patch was mainly performed after spinal anaesthesia and was associated with a high rate success. This encouraging result suggests that recumbent position maintained for 2h after the blood-patch is performed might not be necessary to obtain full efficacy.
- Published
- 2009
26. Increased thrombin generation in women with a history of preeclampsia
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Erik Berntorp, J. Curvers, Maria J. Eriksson, R. Rafik Hamad, and Katarina Bremme
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Adult ,Blood Platelets ,medicine.medical_specialty ,media_common.quotation_subject ,Luteal phase ,Preeclampsia ,Tissue factor ,Thrombin ,Pre-Eclampsia ,Pregnancy ,Internal medicine ,Follicular phase ,medicine ,Humans ,Platelet ,Endothelium ,Menstrual cycle ,Menstrual Cycle ,media_common ,business.industry ,Hematology ,medicine.disease ,Vasodilation ,Endocrinology ,Female ,business ,medicine.drug - Abstract
Introduction: Women with a history of preeclampsia have an increased risk for cardiovascular disease in later Life. We evaluated thrombogenic characteristics of women with a previous history of preeclampsia, expressed in levels of thrombin generation, number of micropartictes and related to menstrual cycle and endothelial function, measured as flow-mediated dilatation. Materials and methods: We included 18 primipara women with a history of preeclampsia and 17 healthy primipara controls, 15 (+/- 3) months after the index pregnancy. Thrombin generation was measured by tissue factor triggered assay, microparticle levels were measured by flow cytometry and the endothelial function was previously examined by measuring flow-mediated dilatation by high-resotution ultrasound, during follicular and luteal phases of the menstrual cycle. Results: Women with previous preeclampsia produced more total amount of thrombin as calculated from thrombin max, thrombin potential and max slope levels p
- Published
- 2007
27. [Idiopathic hypereosinophilic syndrome presenting with oculomotor paresis]
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R, Rafik, A, Bourazza, A, Karouache, J, Mounach, N, Boutaleb, H, Ouhabi, and R, Mossadeq
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Adult ,Male ,Hypereosinophilic Syndrome ,Oculomotor Nerve Diseases ,Humans - Abstract
A 42-year-old patient with a known depressive syndrome developed diplopia. The neurological examination revealed a peripheral neurogenic syndrome with incoordination of the left arm. Biological and radiological findings were in agreement with the diagnosis of idiopathic hypereosinophilic syndrome. Treatment with corticosteroids was effective.
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- 2004
28. [Sneddon's syndrome: 4 cases and a review of the literature]
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A, Abouzahir, A, Bourazza, R, Rafik, K, Karouach, N, Boutaleb, H, Ouhabi, R, Mosseddaq, V, Ohayon, and M-I, Archane
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Adult ,Male ,Sneddon Syndrome ,Humans ,Female ,Middle Aged - Abstract
Sneddon syndrome is an association of livedo racemosa and cerebrovascular ischemic events generally occurring in young adults. This is an uncommon chronic progressive arterio-occlusive disorder of unknown cause involving small and medium sized vessels. We report four cases. One case was disclosed by cerebral hemorrhage. One pathogenic hypothesis suggests the involvement of an idiopathic progressive inflammatory arteriopathy or secondary thrombotic disorder comparable with antiphospholipid syndrome.
- Published
- 2004
29. L’ataxie cérébelleuse : une révélation rare du syndrome de Fahr
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R. Rafik, A. Rouimi, A. Ouarssani, and M. Hachimi
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Pediatrics, Perinatology and Child Health - Published
- 2012
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30. Une cause rare d’accident vasculaire cérébral ischémique : l’embolie graisseuse cérébrale
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M. Hachimi, F. Atoini, A. Rouimi, A. Ouarssani, and R. Rafik
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Neurology ,business.industry ,Medicine ,Neurology (clinical) ,business - Published
- 2012
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31. Reproductive immunology (WS-110)
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E. Sohlberg, E. Sverremark-Ekström, N. Bachmayer, Noriko Sageshima, R. Ou, A. Domagala, W. Li, E. Miko, Akiko Ishitani, Thomas G. Forsthuber, Z. Miao, Ashlesh K. Murthy, John C. Herr, G. Zhong, K. Bremme, W. Qin, R. Rafik-Hamad, E. Kita, Daniel E. Geraghty, S. Imai, Katsuhiko Hatake, Y. Wang, Shihoko Komine-Aizawa, B. K. R. Chaganty, M. Kurpisz, K. Fujita, H. Melinda, T. Palkovics, S. Saghafian-Hedengren, X. Wei, Beata Polgar, W. Zhao, Yasuyuki Izumi, E. M. Kuklina, Bernard P. Arulanandam, S. V. Shirshev, Satoshi Hayakawa, N. S. Glebezdina, Julia Szekeres-Bartho, N. Yang, M. Kamieniczna, and R. Cui
- Subjects
Psychoanalysis ,Reproductive immunology ,Immunology ,Immunology and Allergy ,Zoology ,General Medicine ,Biology - Published
- 2010
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32. Accident vasculaire cérébral ischémique et défaillance multiviscérale au cours d’un syndrome catastrophique des anticorps antiphospholipides
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A. Hommadi, M. Hachimi, A. Rouimi, and R. Rafik
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Gynecology ,medicine.medical_specialty ,Anesthesiology and Pain Medicine ,business.industry ,Medicine ,General Medicine ,business ,Catastrophic antiphospholipid syndrome - Published
- 2010
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33. Toux, fièvre et une opacité paratrachéale droite
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Fouad Atoini, F. Ait Lhou, Aziz Ouarssani, R. Rafik, and Mustapha Idrissi Rguibi
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Radiology, Nuclear Medicine and imaging - Abstract
Feuillets de Radiologie - In Press.Proof corrected by the author Available online since mercredi 12 juin 2013
- Published
- 2013
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34. Paraparésie subaiguë
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R. Rafik, M. Hachimi, A. Ouarssani, A. Houmadi, and A. Rouimi
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Radiology, Nuclear Medicine and imaging - Published
- 2013
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35. État de mal épileptique isolé : un mode de révélation rare de la neurosyphilis précoce
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M. Hachimi, R. Rafik, A. Rouimi, and A. Ouarssani
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Neurology ,Neurology (clinical) - Abstract
Introduction La syphilis « grande simulatrice », maladie rare jusque la, est de nouveau d’actualite .Elle est caracterisee par des tableaux neurologiques polymorphes et atypiques. L’etat de mal epileptique est une manifestation neurologique exceptionnelle pour cette grande simulatrice. Observation et discussion Les auteurs rapportent l’observation d’un patient âge de 35 ans sans antecedent pathologique, pris en charge en reanimation pour un tableau d’etat de mal epileptique. Dans un premier temps, la suspicion d’une etiologie infectieuse classique a conduit a introduire un traitement anti-infectieux probabiliste. La decouverte durant l’hospitalisation d’une serologie syphilitique positive dans le sang et dans le liquide cephalorachidien a permis de retenir le diagnostic d’une neurosyphilis. Conclusion Dans la prise en charge d’un etat de mal epileptique tout praticien doit evoquer la neurosyphilis, notamment dans les pays en developpement, ainsi la realisation d’une serologie syphilitique doit etre systematique.
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- 2013
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36. Hémiparésie d’installation aiguë
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A. Rouimi, R. Rafik, M. Hachimi, and A. Ouarssani
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business.industry ,Medicine ,Radiology, Nuclear Medicine and imaging ,business - Abstract
Chapo Qu’avez-vous retenu de cet article ? Testez si vous avez assimile les points importants de cet article en repondant a ce questionnaire sous forme de QCM.
- Published
- 2012
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37. Increased levels of an apoptotic product in the sera from women with pre‐eclampsia
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Hamad, R. Rafik, primary, Bremme, K., additional, Kallner, A., additional, and Sten‐Linder, M., additional
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- 2009
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38. I - 5 Crises épileptiques et hyperglycémie
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J. Mounach, R. Mossadaq, A. Zerhouni, Ahmed Bourazza, H. Ouhabi, Amal Satte, A. Karouache, N. Boutaleb, Y. Hsaini, and R. Rafik
- Subjects
Neurology ,Neurology (clinical) - Abstract
Introduction Les crises epileptiques peuvent reveler plusieurs troubles metaboliques. De rares cas d’hyperglycemie se manifestant par des convulsions sont rapportes dans la litterature. Objectifs A travers l’etude d’une serie de 7 cas, nous discutons les mecanismes physiopathologiques et soulignons les caracteres cliniques, paracliniques et therapeutiques des crises epileptiques dues a l’hyperglycemie. Methodes Nous avons etudie les observations de 7 patients admis pour crises epileptiques avec hyperglycemie, colliges entre mai 1994 et septembre 2006. Apres un examen clinique complet, tous les patients beneficierent d’un bilan biologique (notamment : ionogramme sanguin, glycemie, glucosurie, recherche de cetones dans les urines), d’un bilan radiologique (scanner et/ou imagerie par resonance magnetique encephalique), ainsi que d’electroencephalogrammes. Resultats La moyenne d’âge etait de 54 ans. Dans tous les cas, le diabete n’etait pas connu, les crises etaient focales motrices (clonies de l’hemiface et/ou du membre superieur) avec ou sans suspension du langage, kinesigeniques dans 6 cas. Le bilan radiologique etait normal dans tous les cas. L’EEG avait montre un ralentissement de l’activite de fond dans les 7 cas et des anomalies focales dans 5 cas. Les glycemies etaient superieures a 3 g/l, avec cetonurie dans 1 cas. L’evolution sous insuline et rehydratation etait favorable. Discussion Typiquement, les crises epileptiques hyperglycemiques surviennent apres 50 ans, sont partielles motrices parfois continues, spontanees ou kinesigeniques, caracterisees par leur resistance au traitement antiepileptique et leur regression sous insuline. leur mecanisme exact demeure inexplique : on evoque l’ischemie cerebrale transitoire par deshydratation ou l’hyperexcitabilite neuronale par augmentation du metabolisme de l’acide gamma-aminobutyrique. Conclusion Les crises epileptiques hyperglycemiques doivent etre considerees comme un syndrome neuroendocrinien specifique. L’optimisation de la prise en charge necessite une meilleure connaissance des mecanismes physiopathologiques.
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- 2007
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39. G - 54 Thrombophlébites cérébrales : étude d’une série de 41 cas
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R. Mosseddaq, A. Zerhouni, R. Rafik, Amal Satte, J. Mounach, A. Karouache, Y. Hsaini, N. Boutaleb, H. Ouhabi, and Ahmed Bourazza
- Subjects
Neurology ,Neurology (clinical) - Abstract
Introduction Les thromboses veineuses cerebrales (TVC) sont rares. Elles constituent l’aspect preponderant de la pathologie veineuse cerebrale. Elles sont caracterisees par leur polymorphisme clinique et etiologique. Objectifs Analyser les differents aspects : epidemiologique, clinique, paraclinique, etiologique, therapeutique et evolutif des thromboses veineuses cerebrales. Methodes Etude retrospective de 41 cas de thromboses veineuses cerebrales, hospitalises durant la periode allant de janvier 1991 a aout 2005. Tous les patients beneficierent d’un examen neurologique et somatique complet. Le bilan paraclinique comporta, outre le scanner cerebral, une imagerie par resonance magnetique avec phlebogramme et/ou une angiographie cerebrale conventionnelle confirmant la TVC. Tous les patients furent mis sous traitement anticoagulant, avec un traitement etiologique dans certains cas. Resultats Notre serie comportait 20 femmes et 21 hommes, avec un âge moyen de 35 ans. La presentation clinique fut polymorphe, dominee par les cephalees et les deficits focaux. L’imagerie revela 16 cas de thromboses profondes et 25 cas de thromboses des sinus duraux, dont trois cas de sinus caverneux. L’evolution sous traitement symptomatique fut favorable dans la majorite des cas avec des sequelles dans 12 cas. Discussion Les thromboses veineuses cerebrales constituent une urgence diagnostique et therapeutique. Grâce au progres de l’imagerie, en particulier l’angiographie et l’imagerie par resonance magnetique, et a l’instauration precoce d’une heparinotherapie, le pronostic s’est nettement ameliore ces dernieres annees. Conclusion Bien que rares, les TVC restent un sujet d’actualite du fait de la diversite de leur presentation clinique et de la multiplicite de leurs etiologies. Elles necessitent une prise en charge rapide et adequate.
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- 2007
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40. G - 69 Syndrome de Sneddon : à propos de 9 cas
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R. Mosseddaq, A. Zerhouni, H. Ouhabi, Amal Satte, Y. Hsaini, J. Mounach, Ahmed Bourazza, N. Boutaleb, A. Karouache, and R. Rafik
- Subjects
Neurology ,Neurology (clinical) - Abstract
Introduction Le syndrome de Sneddon (SS) represente une cause rare d’accidents vasculaires cerebraux (AVC). S’il semble etre bien defini sur le plan clinique, son traitement reste encore mal codifie. Objectifs Etudier les aspects epidemiologiques, cliniques, paracliniques, et therapeutiques de cette affection a travers 9 observations. Methodes Etude retrospective des dossiers de 9 patients, colliges dans le service de neurologie de l’hopital militaire Mohamed V, pendant la periode allant de 1995 a 2006. Tous les patients beneficierent d’un examen neurologique et somatique complet, et d’un bilan etiologique comprenant une imagerie cerebrale, une exploration cardiovasculaire, une biopsie cutanee, un bilan immunologique, inflammatoire, et serologique. L’evolution fut souvent favorable sous traitement. Resultats Il s’agissait de 2 hommes et de 7 femmes dont l’âge variait entre 24-45 ans. Les antecedents etaient domines par les avortements (2 cas), les accidents ischemiques transitoires (2 cas), une mort fœtale in utero (1 cas). La clinique etait polymorphe : deficit moteur, demence, confusion, et crises epileptiques. L’imagerie objectiva des lacunes (6 cas), un AVCI (6 cas) et une hemorragie intraventriculaire (1 cas). Le reste du bilan decela une valvulopathie (6 cas), et des anticorps anti phospholipides (1 cas). Discussion Le SS est une affection rare. Son incidence est de 4 nouveaux cas/million d’habitants/an. Il est plus frequent chez la femme jeune. Son diagnostic se base sur l’association d’un livedo racemosa et d’infarctus cerebral. Ses autres manifestations neurologiques comme dans notre serie, sont polymorphes. Compte tenu de la divergence des etudes sur le role des corticoides, la prevention des recidives se base essentiellement sur les antivitamines K. Conclusion Le SS est une affection rare. L’evolution sans traitement vers des etats dementiels vasculaires, impose un diagnostic rapide et une meilleure prise en charge therapeutique.
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- 2007
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41. A - 14 Syndrome de Doose et phénylcétonurie : à propos d’un cas
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A. Zerhouni, Amal Satte, N. Boutaleb, Y. Hsaini, R. Mosseddaq, J. Mounach, H. Ouhabi, Ahmed Bourazza, A. Karouache, and R. Rafik
- Subjects
Neurology ,Neurology (clinical) - Abstract
Introduction Le syndrome de Doose ou epilepsie myoclono-astatique (EMA) est une epilepsie generalisee polygeniquement determinee. Elle se caracterise par une predisposition genetique et l’absence de maladie neuro-metabolique associee. Observations (N° : 40/2000). Une jeune fille de 8 ans, sans antecedent, fut admise pour des crises pluriquotidiennes faites de secousses myocloniques violentes generalisees, associees a des chutes par atonie brusque de la tete et des membres inferieurs, evoluant depuis deux ans, et rappelant en tout point le syndrome de Doose. L’examen neurologique nota une oligophrenie avec une hypotonie generalisee chez un enfant ayant un teint plus clair que celui de ses parents. L’electroencephalogramme (EEG) montra une activite de fond ralentie, emaillee de nombreuses decharges de polypointes hypervoltees a 2,5 cycles/seconde. Le bilan biologique revela une phenylcetonurie, qui fut egalement retrouvee chez le frere aine asymptomatique, ainsi qu’un pattern EEG dans la famille. L’evolution fut favorable sous synacthene, piracetam, valproate de sodium, et regime dietetique. Discussion L’atteinte neurologique au cours de la phenylcetonurie reconnait plusieurs aspects. Elle est due a l’effet toxique de la phenylalanine et de ses metabolites. Son association a un syndrome de Doose, a notre connaissance, n’a jamais ete rapportee. Ceci nous incite a souligner la singularite electro-clinique de cette entite, ainsi que sa place nosologique parmi les epilepsies myocloniques de l’enfant. Conclusion Cette observation vient confirmer la grande variabilite clinique et bioelectrique des epilepsies myocloniques de l’enfant, et incite a la recherche etiopathogenique pour une meilleure prise en charge therapeutique.
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- 2007
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42. NR56 Myelites post-radiques : aspects neuroradiologiques
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Jamal Mounach, A. Zerhouni, A. Karouache, R. Mosseddaq, H. Ouhabi, Ahmed Bourazza, R. Rafik, and Amal Satte
- Subjects
Radiological and Ultrasound Technology ,Radiology, Nuclear Medicine and imaging - Abstract
Objectifs La myelite radique est rare et represente la complication la plus grave de l’irradiation des cancers. A travers les observations de trois patients, nous decrivons les donnees de l’IRM dans cette affection et l’importance de cet examen dans le diagnostic. Materiels et methodes Nous avons etudie les observations de trois patients, ayant beneficie auparavant de seances de radiotherapie, et qui avaient consulte pour divers symptomes : deficit moteur, sensitif, signe de Lhermitte, amyotrophie… L’examen clinique avait trouve un syndrome medullaire dans les trois cas. Tous les malades avaient beneficie d’une IRM medullaire. Resultats L’IRM avait montre dans les trois cas un hypersignal de la moelle epiniere avec atrophie medullaire, dont la topographie etait variable. Le reste du bilan paraclinique realise etait sans particularites permettant ainsi d’eliminer d’autres causes qui seraient responsables de l’atteinte medullaire. Conclusion L’IRM medullaire est l’examen de choix en cas de suspicion de myelite radique puisqu’elle permet de confirmer le diagnostic, d’eliminer une atteinte medullaire d’autres origines (compressives, tumorales…) et d’evaluer l’etendue et la severite des lesions. La gravite de ces myelites doit inciter a la plus grande prudence chez les patients necessitant une radiotherapie puisque le traitement reste uniquement preventif.
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- 2005
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43. NR65 Neurosarcoidose revelee par des troubles psychiatriques
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Jamal Mounach, R. Rafik, R. Mosseddaq, A. Bourezza, A. Karouache, N. Boutaleb, A. Zerhouni, Amal Satte, and H. Ouhabi
- Subjects
Radiological and Ultrasound Technology ,Radiology, Nuclear Medicine and imaging - Abstract
Objectifs Les manifestations neurologiques et psychiatriques au cours de la sarcoidose sont de diagnostic difficile quand elle sont inaugurales. A travers notre observation, nous soulignons l’interet et les donnees de la radiologie dans le diagnostic de ces atteintes qui restent rares. Materiels et methodes Nous rapportons le cas d’un patient de 41 ans, initialement admis en psychiatrie pour troubles du comportement avec heteroaggressivite et fugues. L’examen neurologique avait trouve un syndrome confusionnel, un syndrome cerebelleux et une irritation tetrapyramidale. Resultats La TDM cerebrale avait montre une forte prise de contraste de la base, avec un nodule temporal gauche rehausse par l’injection iodee. L’IRM avait montre une prise de contraste des meninges et de la toile choroidienne avec multiples nodules sus et sous-tentoriels, ainsi qu’au niveau du cone medullaire, rehausses par le Gadolinium. Nous avons retenu le diagnostic de sarcoidose sur l’association d’arguments radiologiques et biologiques. Conclusion La neurosarcoidose reste rare. La mise en evidence de signes radiologiques (neurologiques et extra-neurologiques) evocateurs est d’un grand secours au diagnostic qui est souvent pose sur un faisceau d’arguments. Le scanner et l’IRM ont egalement un grand interet dans la surveillance et le suivi sous traitement.
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- 2005
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44. 755 Endothelial function, blood pressure and lipids in pre-eclamptic patients one year after delivery
- Author
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R. Rafik Hamad, Maria Eriksson, and Katarina Bremme
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Function blood ,medicine.medical_specialty ,medicine.anatomical_structure ,Blood pressure ,Endothelium ,business.industry ,Internal medicine ,Cardiology ,Medicine ,Radiology, Nuclear Medicine and imaging ,General Medicine ,Cardiology and Cardiovascular Medicine ,business - Published
- 2003
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45. Does Thrombin Activatable Fibrinolysis Inhibitor (TAFI) Contribute to Impairment of Fibrinolysis in Patients with Preeclampsia and/or Intrauterine Fetal Growth Retardation?
- Author
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Antovic, J.P., Hamad, R. Rafik, Antovic, A., Blombäck, M., and Bremme, K.
- Published
- 2002
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46. Scaling-up and scaling-out the Systems Analysis and Improvement Approach to optimize the hypertension diagnosis and care cascade for HIV infected individuals (SCALE SAIA-HTN): a stepped-wedge cluster randomized trial.
- Author
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Hazim CE, Dobe I, Pope S, Ásbjörnsdóttir KH, Augusto O, Bruno FP, Chicumbe S, Lumbandali N, Mate I, Ofumhan E, Patel S, Rafik R, Sherr K, Tonwe V, Uetela O, Watkins D, Gimbel S, and Mocumbi AO
- Abstract
Background: Undiagnosed and untreated hypertension is a main driver of cardiovascular disease and disproportionately affects persons living with HIV (PLHIV) in low- and middle-income countries. Across sub-Saharan Africa, guideline application to screen and manage hypertension among PLHIV is inconsistent due to poor service readiness, low health worker motivation, and limited integration of hypertension screening and management within HIV care services. In Mozambique, where the adult HIV prevalence is over 13%, an estimated 39% of adults have hypertension. As the only scaled chronic care service in the county, the HIV treatment platform presents an opportunity to standardize and scale hypertension care services. Low-cost, multi-component systems-level strategies such as the Systems Analysis and Improvement Approach (SAIA) have been found effective at integrating hypertension and HIV services to improve the effectiveness of hypertension care delivery for PLHIV, reduce drop-offs in care, and improve service quality. To build off lessons learned from a recently completed cluster randomized trial (SAIA-HTN) and establish a robust evidence base on the effectiveness of SAIA at scale, we evaluated a scaled-delivery model of SAIA (SCALE SAIA-HTN) using existing district health management structures to facilitate SAIA across six districts of Maputo Province, Mozambique., Methods: This study employs a stepped-wedge design with randomization at the district level. The SAIA strategy will be "scaled up" with delivery by district health supervisors (rather than research staff) and will be "scaled out" via expansion to Southern Mozambique, to 18 facilities across six districts in Maputo Province. SCALE SAIA-HTN will be introduced over three, 9-month waves of intensive intervention, where technical support will be provided to facilities and district managers by study team members from the Mozambican National Institute of Health. Our evaluation of SCALE SAIA-HTN will be guided by the RE-AIM framework and will seek to estimate the budget impact from the payer's perspective., Discussion: SAIA packages user-friendly systems engineering tools to support decision-making by frontline health workers and to identify low-cost, contextually relevant improvement strategies. By integrating SAIA delivery into routine management structures, this pragmatic trial will determine an effective strategy for national scale-up and inform program planning., Trial Registration: ClinicalTrials.gov NCT05002322 (registered 02/15/2023)., (© 2024. The Author(s).)
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- 2024
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47. Efficacy and Safety of Local Intracoronary Drug Delivery in Treatment of No-Reflow Phenomenon: A Pilot Study.
- Author
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Abu Arab T, Rafik R, and El Etriby A
- Subjects
- Aged, Cardiovascular Agents administration & dosage, Coronary Angiography methods, Female, Humans, Male, Middle Aged, Myocardial Reperfusion methods, No-Reflow Phenomenon diagnosis, No-Reflow Phenomenon etiology, Pilot Projects, Treatment Outcome, Angioplasty, Balloon, Coronary adverse effects, Angioplasty, Balloon, Coronary methods, Coronary Vessels diagnostic imaging, Coronary Vessels drug effects, Epinephrine administration & dosage, Injections, Intra-Arterial methods, No-Reflow Phenomenon therapy, Verapamil administration & dosage
- Abstract
Background: Successful reopening of epicardial coronary artery does not always mean optimal myocardial reperfusion in a sizable portion of patients, mostly because of no-reflow phenomenon., Objectives: We investigated whether local injection of adrenaline ± verapamil in the distal coronary bed is more effective than their intracoronary (IC) injection through the guiding catheter in the treatment of no-reflow phenomenon following percutaneous coronary intervention (PCI)., Methods: A total of 40 patients with no-reflow following PCI were randomized into two groups. Group 1 received IC adrenaline ± verapamil through a well-cannulated guiding catheter while Group 2 received the above-mentioned drugs in the distal coronary bed through a perfusion balloon or selective microcatheter. The primary end points were the achievement of TIMI III flow with MBG II or III. Secondary end points were the occurrence of hypotension, arrhythmias, and major adverse cardiac events (MACEs) during hospital stay., Results: After drug injection, the percentage of patients achieving Thrombolysis in Myocardial Infarction (TIMI) III flow in Group 1 was 40% versus 80% in Group 2, P = 0.032. MBG II and III was significantly lower in Group 1; 10% and 25% versus 15% and 65% in Group 2, respectively, P = 0.033. Primary end points were achieved in only 35% of patients in Group 1 and in 80% of patients in Group 2 (odds ratio, 7.43, 95% confidence interval 1.78-31.04, P < 0.01). Secondary end points were not different between both groups., Conclusion: Local intra-coronary delivery of adrenaline ± verapamil is a safe and effective method for the treatment of no-reflow phenomenon complicating PCI., (© 2016, Wiley Periodicals, Inc.)
- Published
- 2016
- Full Text
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48. Assessment of left ventricular structure and function in preeclampsia by echocardiography and cardiovascular biomarkers.
- Author
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Rafik Hamad R, Larsson A, Pernow J, Bremme K, and Eriksson MJ
- Subjects
- Adult, C-Reactive Protein metabolism, Case-Control Studies, Cystatin C blood, Female, Glomerular Filtration Rate, Heart Ventricles diagnostic imaging, Humans, Natriuretic Peptide, Brain blood, Peptide Fragments blood, Pregnancy, Troponin I blood, Biomarkers blood, Echocardiography, Heart Ventricles anatomy & histology, Heart Ventricles physiopathology, Pre-Eclampsia physiopathology
- Abstract
Aim: To assess left ventricular (LV) structure and function in preeclampsia, a serious vascular-related pregnancy disorder, by Doppler tissue imaging (DTI) in combination with the levels of cardiovascular biomarkers., Material and Methods: Thirty-five pregnant women with preeclampsia and 30 with normal pregnancy, matched for age and gestational age were examined during pregnancy and 3-6 months after delivery. Transthoracic echocardiography and DTI were performed and blood levels of amino-terminal pro-brain natriuretic peptide (NT-pro-BNP), C-reactive protein (CRP), cystatin C and troponin I were analyzed., Results: There were significant differences in LV and left atrial dimensions and function between the groups. A higher septal and lateral E/E' ratio (E = early transmitral diastolic flow velocity and E' = early diastolic myocardial velocity) (P < 0.0001, 0.0008) and higher levels of NT-pro-BNP, cystatin C, and lower cystatin C estimated GFR in ml/min per 1.73 m(2) (P < 0.0001) were seen in the preeclampsia both during pregnancy and at follow-up. In addition the levels of E/E' ratio lateral and NT-pro-BNP were higher in pregnant women with early-onset preeclampsia necessitating delivery before 34 weeks of gestation than those who developed preeclampsia and delivered at or after 34 weeks (P = 0.0004, 0.005)., Conclusion: In pregnancies complicated by preeclampsia, especially early-onset preeclampsia, the diastolic LV function is impaired and levels of biomarkers, NT-pro-BNP and cystatin C, are increased in comparison to normal pregnancy.
- Published
- 2009
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49. Increased thrombin generation in women with a history of preeclampsia.
- Author
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Rafik Hamad R, Curvers J, Berntorp E, Eriksson M, and Bremme K
- Subjects
- Adult, Endothelium metabolism, Female, Humans, Menstrual Cycle blood, Menstrual Cycle metabolism, Pregnancy, Blood Platelets cytology, Endothelium blood supply, Pre-Eclampsia physiopathology, Thrombin metabolism, Vasodilation
- Abstract
Introduction: Women with a history of preeclampsia have an increased risk for cardiovascular disease in later life. We evaluated thrombogenic characteristics of women with a previous history of preeclampsia, expressed in levels of thrombin generation, number of microparticles and related to menstrual cycle and endothelial function, measured as flow-mediated dilatation., Materials and Methods: We included 18 primipara women with a history of preeclampsia and 17 healthy primipara controls, 15 (+/-3) months after the index pregnancy. Thrombin generation was measured by tissue factor triggered assay, microparticle levels were measured by flow cytometry and the endothelial function was previously examined by measuring flow-mediated dilatation by high-resolution ultrasound, during follicular and luteal phases of the menstrual cycle., Results: Women with previous preeclampsia produced more total amount of thrombin as calculated from thrombin max, thrombin potential and max slope levels p<0.05, 0.01 and 0.01 respectively. Platelet derived microparticle levels were higher in women with a history of preeclampsia, p=0.07. Flow-mediated dilatation was significantly decreased in comparison to healthy controls (p<0.0001). There were no variation in levels of thrombin, microparticles and flow-mediated dilatation during the menstrual phases., Conclusion: Women with a history of preeclampsia show signs of hypercoagulability as indicated by higher thrombin generation and higher platelet derived microparticle levels. Since these women were investigated more than one year after delivery, these results may be indicative of an increased risk of cardiovascular events later in life.
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- 2009
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50. Aberrant uterine natural killer (NK)-cell expression and altered placental and serum levels of the NK-cell promoting cytokine interleukin-12 in pre-eclampsia.
- Author
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Bachmayer N, Rafik Hamad R, Liszka L, Bremme K, and Sverremark-Ekström E
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- Cell Shape, Female, Health, Humans, Inflammation Mediators blood, Interleukin-15 blood, Killer Cells, Natural immunology, Phenotype, Placenta pathology, Pregnancy, Pregnancy Trimester, Third blood, Pregnancy Trimester, Third metabolism, Trophoblasts metabolism, Uterus pathology, Interleukin-12 blood, Killer Cells, Natural pathology, Placenta metabolism, Pre-Eclampsia blood, Pre-Eclampsia pathology, Uterus immunology
- Abstract
Problem: Natural killer (NK) cells are the most abundant lymphocyte population at the maternal-fetal interface. They are suggested to be important during placentation by controlling trophoblast invasion. If placentation is suboptimal, pre-eclampsia can occur., Method of Study: Decidual NK (dNK) cells were examined at delivery in 46 women, 22 pre-eclamptic women and 24 healthy controls, by staining for CD56 and CD94 with immunohistochemistry (IHC). Furthermore, we investigated the placental expression and the serum levels of the NK-cell activating cytokines interleukin(IL)-12, IL-15, IL-18 and the anti-inflammatory cytokine IL-10 by IHC and enzyme-linked immunosorbent assay (ELISA), respectively., Results: Pre-eclamptic women had higher number of CD56+ and CD94+ cells in the decidua, indicating an altered receptor expression of dNK cells. We also demonstrate for the first time that the villous trophoblasts show strong immunostaining for IL-12 in placentae from healthy controls, while women suffering from pre-eclampsia have significantly less IL-12. However, pre-eclamptic women had significantly elevated IL-12 and IL-15 levels in serum., Conclusion: Results show increased numbers and altered phenotype of dNK cells in pre-eclampsia, supporting the importance of these cells for a healthy pregnancy. The altered receptor expression of dNK cells together with diminished placental IL-12 expression could implicate an altered NK cell-regulation in pre-eclampsia.
- Published
- 2006
- Full Text
- View/download PDF
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