Tacrolimus (or FK506), a calcineurin inhibitor (CNI) introduced in field of transplantation in the 1990s, is the cornerstone of most immunosuppressive regi mens in solid organ transplantation. Its use has revolutionized the future of kidney transplantation (KT) and has been associated with better graft survival, a lower in cidence of rejection, and improved drug tolerance with fewer side effects compared to cyclosporine. However, its monitoring remains complicated and underexposure increases the risk of rejection, whereas overexposure increases the risk of adverse effects, primarily nephrotoxicity, neurotoxicity, infections, malignancies, diabetes, and gastrointestinal complaints. Tacrolimus nephrotoxicity can be nonreversible and can lead to kidney graft loss, and its diagnosis is therefore best made with reference to the clinical context and after exclusion of other causes of graft dysfunction. Many factors contribute to its development including: systemic levels of tacrolimus; local renal exposure to tacrolimus; exposure to metabolites of tacrolimus; local susceptibil ity factors for CNI nephrotoxicity independent of systemic or local tacrolimus levels, such as the age of a kidney; local renal P-glycoprotein, local intestinal and hepatic cytochrome P450A3, and renin angiotensin system activation. The aim of this review is to describe the pharmacokinetics, pharmacodynamics, and mechanisms of acute and chronic tacrolimus nephrotoxicity in adult KT. K E Y W O R D Sacute,

The incidence of AKI in developing countries ranges from 4% to 36% depending on the study. In India and Pakistan, cases of pregnancy-related AKI occur mainly during the first trimester of pregnancy and are related to severe states of sepsis. In Morocco, AKI occurs mainly in the third trimester in a context of hypertensive disorders. Maternal mortality varies between 6% and 30% depending on the study. AKI is a frequently occurring complication in developing countries. It is reversible as shown by total recovery of renal function, but this depends on early and appropriate diagnosis and treatment. Nevertheless, the best treatment remains prevention.

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Hemodialysis (HD) has a severe impact on the life of HD patients. The aim of this work was to assess the prevalence of depression and anxiety disorders, suicidal ideation, and the quality of life among HD patients. Associated factors were also studied. A cross-sectional study was carried out among 103 HD patients treated at the HD Center of Al Farabi Hospital of Oujda during a period of six months in 2015. The Mini-International Neuropsychiatric Interview and European Quality of Life-5 Dimensions (EQ-5D) were used for the assessment. Major depressive episode (MDE) was found in 34% of our patients, whereas anxiety disorder was observed in 25.2%. Suicidal ideation was found in 16.5% and 1.9% of our patients planned their suicide. The EQ-5D index was 0.41 ± 0.36 and the EQ-Visual Analog Scale score was 45.73 ± 14. Multivariate analysis showed that MDEs were associated with three factors: marital status, pain, and anxiety disorder. There was also an association between anxiety disorder and age and EQ-Visual Analog Scale score. Suicidal ideation was associated with marital status and anxiety disorders. Together, these results underline the importance of the collaboration between nephrologists and psychiatrists for a better care of HD patients.

Acute kidney injury (AKI) is a rare but life-threatening complication of pregnancy. The aim of this paper is to study the characteristics of acute AKI in pregnancy and to emphasize on its management modalities in Moroccan hospitals. This is a national prospective study performed over six months from July 1 to December 31 2010 on AKI developing in pregnant patients, both preand post-partum period. Patients with pre-existing kidney disease were excluded from the study. Outcome was considered unfavorable when complete recovery of renal function was not achieved and/or maternal death occurred. Forty-four patients were included in this study. They were 29.6 ± 6 years old and mostly illiterate (70.6%). Most AKI occurred in the post-partum period, with 66% of the cases occurring in those who did not receive antenatal care. The main etiologies were pre-eclampsia (28 cases), hemorrhagic shock (six cases) and septic events (five cases). We noted three cases of acute fatty liver, one case of obstructive kidney injury and one case of lupus nephritis. Hemodialysis was necessary in 17 (38.6%) cases. The outcome was favorable in 29 patients. The maternal mortality rate was 11.4%. Two poor prognostic factors were identified: Age over 38 years and sepsis. AKI is a severe complication of pregnancy in developing countries. Its prevention necessitates the improvement of the sanitary infrastructure and the establishment of the obligatory antenatal care.

Introduced in 1995, mycophenolate mofetil (MMF) would become the most powerful antiproliferative agent in the field of organ transplantation, thereby supplanting azathioprine, the first antiproliferative agent introduced in the early 1960s.Its association with tacrolimus greatly improved kidney transplant (KT) prognosis by significantly reducing the incidence of posttransplant acute rejection. MMF is also reputed to be a safe medication, but the frequency of the gastrointestinal complications associated with it, even minor ones, has induced the marketing of a second molecule called enteric-coated mycophenolate sodium. This late form of mycophenolate was supposed to be better tolerated thanks to its pharmacokinetic properties but the studies did not show significant differences between the two molecules. Otherwise, the combination of MMF with tacrolimus has significantly increased the risk of infections, particularly viral, and of neoplasia. To reduce this risk and avoid any situation of under or overexposure while remaining effective, only a strict and long-term monitoring of MMF allows the maintenance of already established therapeutic targets within the predefined ranges. In KT, individualizing the prescription and targets of MMF according to immunologic risk, global immunosuppression, and posttransplant period, as for other immunosuppressants, is open to discussion and may be beneficial.

L'infection urinaire chez l'insuffisant rénal est fréquente et particulière dans sa prise en charge diagnostique et thérapeutique. L'objectif de notre étude est de déterminer le profil bactériologique et d’étudier les facteurs de risque des infections urinaires chez le patient insuffisant rénal chronique en milieu de néphrologie. Etude prospective débutée en Septembre 2012 menée au service de néphrologie à l'hôpital régional d'Oujda de l'oriental Marocain. Ont été inclus tous les patients hospitalisés en néphrologie avec une infection urinaire documentée. Nous avons analysé les données démographiques, cliniques, biologiques, et thérapeutiques de nos patients à l'admission et au cours de leurs hospitalisations. 48 épisodes d'infections urinaires chez 43 patients ont été colligés dont 3 enfants. L'incidence de l'infection urinaire dans notre étude était de 4,65%. La médiane d’âge était de 53 (32-66) années. 60,4% étaient de sexe féminin. Le germe isolé était un Escheria Coli dans 58,3% et un Klebsiella dans 29,2%. Le germe isolé était résistant à l'amoxicilline-acide clavulanique dans 83% des cas. L'antibiotique prescris en premiére intention chez nos patients était une céphalosporine de 3 éme génération dans 50%. L’évolution chez nos patients était favorable dans 89,6% des cas. 33,3% avaient présenté un sepsis et on a noté le décès dans 10,4% des cas. Les infections urinaires chez l'insuffisant rénal chronique reste très grave vu leur lourde morbi-mortalié d'où l'intêrét d'un dépistage précoce chez cette population. Un usage raisonné des antibiotiques est nécessaire afin de prévenir l'extension des résistances bactériennes.

The repercussions of the COVID-19 pandemic for medical students are enormous and not limited to the interruption of courses in medical schools and/or hospital training rotations, the introduction of teaching exclusively online, postponement of examinations, and of the new academic year, but extend beyond that. The mobility of students within the framework of the International Federation of Medical Students' Associations (IFMSA) is also strongly affected by the unexpected interruption of this program and the deprivation of thousands of students worldwide of this fine opportunity for training, exchange and sharing. The International Federation of Medical Students' Associations (IFMSA) was founded in 1951 and currently maintains 135 National Member Organizations (NMOs) from 125 countries, representing a network of 1.3 million medical students around the globe. Moroccan students, members of IFMSA like students from other countries, are also concerned. Clinical and research exchanges, carried out under the auspices of the IFMSA, allow all the students to discover the health care and medical education systems of another country in a different sociocultural environment. To maintain student motivation and deal with the repercussions of cancelled exchanges, IFMSA could propose online training programs, adapted to student needs during this period of confinement and deconfinement from June to September 2020.