22 results on '"Ngom NF"'
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2. Changes in early HIV/AIDS mortality rates in people initiating antiretroviral treatment between 2013 and 2023: A 10-year multicenter survival study in Senegal.
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Wembulua BS, Cisse VMP, Ka D, Ngom NF, Mboup A, Diao I, Massaly A, Sarr C, Diallo K, Diallo MB, Diop M, Ba PS, Manga NM, Wembonyama SO, Tsongo ZK, and Seydi M
- Abstract
Background: HIV/AIDS-related early mortality has long been a significant challenge. Subsequent to recent policy changes and treatment advancements, we aimed to assess changes in early mortality rates in 2017-19 and 2020-23 compared to 2013-16., Methods: This is a 10-year multicenter survival study in people living with human immunodeficiency virus having initiated ART between 2013 and 2023. We used frailty-based competing risk models to estimate adjusted early (6-month and one-year) mortality hazard ratios (HRs) in people living with HIV (PwHIV) having initiated ART in 2013-16 (comparator), 2017-19, and 2020-23., Results: We enrolled 4006 persons of whom 2281 (56.9 %) were female; median age was 40 years (IQR: 31-50); 635 (15.9 %) were at WHO clinical stage IV and 934 (23.3 %) had a CD4 count <200 cells/mm
3 . Median follow-up was 80.4 months (IQR: 48.6-106.7). All in all, 463 participants died (4.37 deaths per 100 person-years), including 296 at one year of follow-up (7.4 % [95 % CI: 6.6-8.2]). ART initiation in 2016-19 and 2020-23 was associated with 27 % (adjusted HR [aHR]: 0.73; 95 % CI: 0.55-0.98) and 63 % (aHR: 0.37; 95 % CI: 0.25-0.56) reductions in one-year mortality rates, respectively, compared to the 2013-16 period., Conclusion: Early mortality risk has significantly decreased over time in Senegal. However, the proportion of PwHIV with AIDS-defining conditions remains concerning. Continued efforts to ensure early diagnosis and prompt linkage to care are needed for more impact., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Masson SAS. All rights reserved.)- Published
- 2024
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3. Hepatocellular carcinoma surveillance among people living with hepatitis B in Senegal (SEN-B): insights from a prospective cohort study.
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Ramírez Mena A, Thiam M, Ka D, Niang I, Tine J, Fortes L, Ndiaye K, Ndiaye O, Fall M, Gaye A, Ngom NF, Fall F, Berzigotti A, Kirk GD, Jaquet A, Seydi M, and Wandeler G
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- Humans, Senegal epidemiology, Female, Male, Prospective Studies, Adult, Middle Aged, Elasticity Imaging Techniques, Magnetic Resonance Imaging, Tomography, X-Ray Computed, Carcinoma, Hepatocellular epidemiology, Carcinoma, Hepatocellular diagnostic imaging, Carcinoma, Hepatocellular diagnosis, Carcinoma, Hepatocellular virology, Liver Neoplasms epidemiology, Liver Neoplasms diagnostic imaging, Liver Neoplasms diagnosis, Liver Neoplasms virology, Early Detection of Cancer methods, Hepatitis B, Chronic complications, Hepatitis B, Chronic epidemiology, Ultrasonography
- Abstract
Background: Chronic hepatitis B virus (HBV) infection is the predominant cause of hepatocellular carcinoma in west Africa, yet data on the incidence of HBV-related hepatocellular carcinoma remain scarce. We aimed to describe the uptake and early outcomes of systematic ultrasound-based hepatocellular carcinoma screening in SEN-B, which is a prospective HBV cohort in Senegal., Methods: In this prospective cohort study, we included treatment-naive, HBsAg-positive individuals who were referred to the two infectious diseases clinics (the Department of Tropical and Infectious Diseases and Ambulatory Treatment Center) at Fann University Hospital of Dakar, Senegal, between Oct 1, 2019, and Oct 31, 2022. All participants resided within the Dakar region. Participants underwent abdominal ultrasound, transient elastography, and clinical and virological assessments at inclusion and every 6 months. Liver lesions at least 1 cm in diameter on ultrasound were assessed using four-phase CT, MRI, or liver biopsy. Adherence to hepatocellular carcinoma surveillance was measured using the proportion of time covered, calculated by dividing the cumulative months covered by abdominal ultrasound examinations by the overall follow-up time, defined as the number of months from the date of cohort entry until the last recorded visit, hepatocellular carcinoma diagnosis, or death. Optimal adherence was defined as a proportion of time covered of 100%., Findings: Overall, 755 (99·6%) of 758 participants had at least one abdominal ultrasound performed. The median age of the enrolled participants was 31 years (IQR 25-39), 355 (47·0%) of 755 participants were women, and 82 (10·9%) had a family history of hepatocellular carcinoma. 15 (2·0%) of 755 individuals were HBeAg positive, 206 (27·3%) of 755 individuals had HBV DNA of more than 2000 IU/mL, and 27 (3·6%) of 755 had elastography-defined liver cirrhosis. Of ten (1·3%) participants with a focal lesion at least 1 cm at initial assessment, CT or MRI ruled out hepatocellular carcinoma in nine, whereas imaging and subsequent liver biopsy confirmed one patient with hepatocellular carcinoma. Two further patients with hepatocellular carcinoma were diagnosed at study presentation due to the presence of portal thrombosis on ultrasound. Excluding the three participants with hepatocellular carcinoma identified at baseline, 752 participants were eligible for screening every 6 months. Median follow-up time was 12 months (IQR 6-18) and the median number of ultrasounds per patient was 3 (2-4). During 809·5 person-years of follow-up, one incident hepatocellular carcinoma was reported, resulting in an incidence rate of 1·24 cases per 1000 person-years (95% CI 0·18-8·80). Overall, 702 (93·0%) of 755 participants showed optimal hepatocellular carcinoma surveillance, but this proportion decreased to 77·8% (42 of 54 participants) after 24 months., Interpretation: Hepatocellular carcinoma screening is feasible in HBV research cohorts in west Africa, but its longer-term acceptability needs to be evaluated. Long-term hepatocellular carcinoma incidence data are crucial for shaping tailored screening recommendations., Funding: Swiss National Science Foundation, the Swiss Cancer Research Foundation, the National Cancer Institute, and Roche Diagnostics., Translation: For the French translation of the abstract see Supplementary Materials section., Competing Interests: Declaration of interests GW has received research grants from Roche Diagnostics and Gilead Sciences, and served in advisory boards for ViiV, Gilead Sciences, and Merck & Co. AB reports consulting fees from Inventiva and grant support from Boehringer Ingelheim. All other authors declare no competing interests., (Elsevier Ltd. All rights reserved, including those for text and data mining, AI training, and similar technologies.)
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- 2024
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4. Perceptions, facilitators and barriers to the implementation of interpersonal group therapy to treat depression among people living with HIV in Senegal: a qualitative study.
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Bernard C, Mané I, Ziadeh S, Tine JM, Diaw A, Benzekri N, Ndiaye I, Samba O, Font H, Bottai T, Jacquesy L, Verdeli H, Ngom NF, Dabis F, Seydi M, and de Rekeneire N
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- Humans, Depression therapy, Pandemics, Senegal, Psychotherapy, Group, HIV Infections epidemiology
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Background: Depression is highly prevalent in people living with HIV (PLWH) but remains under treated in Sub-Saharan Africa. In this context, we conducted the first study of Group Interpersonal Therapy (IPT) to treat depression in PLWH in Senegal. We assessed the perceptions and experiences of patients and group facilitators, as well as barriers to implementation., Methods: This study was conducted at the Fann National University Hospital Center in Dakar, the urban capital of Senegal. Qualitative data were collected during the implementation phase (February to June 2020 and then from January to February 2021), with a 6-month pause due to the COVID-19 pandemic. Twenty-five patients and three group facilitators were individually interviewed by a socio-anthropologist. Qualitative data were analyzed thematically., Results: Group IPT was perceived as successful and beneficial by patients and facilitators. Patients reported positive experiences with group IPT and sustained outcomes. Beyond improving depressive symptoms, patients reported improvements in their social and professional lives, and the development of skills to prevent relapse. Group facilitators noted the benefits of therapy for their patients and for their professional skills, reporting greater clinical competence and improved supportive skills. Challenges to intervention implementation included confidentiality and patient privacy concerns, healthcare accessibility issues, and time demands., Conclusion: In this first qualitative study of group IPT for depression in PLWH in Senegal, participants described both positive experiences with the intervention and challenges to its implementation. Future studies, conducted in suburban and rural communities outside of Dakar, would further inform the implementation of IPT in Senegal., 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 © 2024 Bernard, Mané, Ziadeh, Tine, Diaw, Benzekri, Ndiaye, Samba, Font, Bottai, Jacquesy, Verdeli, Ngom, Dabis, Seydi and de Rekeneire.)
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- 2024
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5. Management of depression in people living with HIV/AIDS in Senegal: Acceptability, feasibility and benefits of group interpersonal therapy.
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Bernard C, Font H, Ziadeh S, Tine JM, Diaw A, Ndiaye I, Samba O, Bottai T, Jacquesy L, Verdeli H, Ngom NF, Dabis F, Seydi M, and de Rekeneire N
- Abstract
Depression is highly prevalent in people living with HIV (PLWH) and has negative consequences for daily life and care. We evaluated for the first time the acceptability, feasibility and benefits of group interpersonal therapy (IPT), combined with a task-shifting approach, to treat depression in PLWH in Senegal. PLWH with depression received group IPT following the World Health Organization protocol. Acceptability and feasibility criteria were defined from the literature data. The PHQ-9, the WHODAS, and the 12-item-stigma scale were used, pre- and post-treatment, including a 3-month follow-up, to assess depressive symptom severity, functioning and stigma, respectively. General linear mixed models were used to describe changes in outcomes over time. Of 69 participants, 60 completed group IPT. Refusal to enroll and dropout rates were 6.6 and 12.7%, respectively. Ninety-seven percent of participants attended at least seven out of eight sessions. Patients and facilitators endorsed group IPT, with willingness to recommend it. Depressive symptoms and disability improved drastically and sustainably. We showed that group IPT is well accepted and feasible in Senegal as treatment for depression in PLWH. Combined with a task-shifting approach, it can narrow the gap in mental health treatment. Implementation may be enhanced by refining patient identification procedures and increasing treatment accessibility., Competing Interests: The authors declare that they have no conflicts of interest., (© The Author(s) 2023.)
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- 2023
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6. Liver Disease and Treatment Needs of Asymptomatic Persons Living With Hepatitis B in Senegal.
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Ramírez Mena A, Thioubou MA, Diallo K, Tine J, Ngom NF, Fortes L, Ndiaye K, Karasi JC, Seguin-Devaux C, Goedertz H, Diouf D, Seydi M, Sambou BA, Arendt V, Wandeler G, and Manga NM
- Abstract
The prevalence of active hepatitis B among asymptomatic persons remains unclear in Africa. Of 1206 newly diagnosed persons in Senegal, 12.3% had significant fibrosis and 31.3% had hepatitis B virus (HBV) DNA levels >2000 IU/mL. Overall, 128 (12.9%) were eligible for antiviral therapy. Generalized HBV screening allowed the identification of a large population requiring HBV care., (© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America.)
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- 2022
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7. Validation of the point-of-care (POC) technologies Xpert HIV-1 Qual and m-PIMA HIV 1/2 detect for early diagnosis of HIV-1 and HIV-2 in Senegal.
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Ndoye AS, Ndiaye HD, Diallo M, Diack A, Coulibaly K, Lo G, Kiernan B, Sène PY, Ndiaye O, Ngom NF, Fall M, Diop K, Gueye SB, Dieng A, Lejeune C, Ndour CT, and Kane CT
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- Infant, Infant, Newborn, Child, Humans, Female, HIV-2, Potassium Iodide, Point-of-Care Systems, Senegal, Infectious Disease Transmission, Vertical, Sensitivity and Specificity, Early Diagnosis, Viral Load, RNA, Viral, HIV-1 genetics, HIV Infections
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Introduction: early infant diagnosis (EID) is crucial in the prevention of mother to child transmission (PMTCT) of human immunodeficiency virus (HIV) and is an essential component for the elimination of HIV. EID can be strengthened in resource-limited countries by the introduction and the roll out of real-time polymerase chain reaction (PCR) technologies via point-of-care (POC) devices which improves treatment in remote areas and reduces turnaround time for clinicians and patients to receive results and linkage to care. The objective of this study was to evaluate the performance of Xpert® HIV-1 Qual Assay (Cepheid) and m-PIMA™ HIV 1/2 Detect (ABBOTT) for EID of HIV-1 and HIV-2., Methods: the performance of the Xpert® HIV-1 qual device was evaluated with 192 samples including 100 dried blood spot (DBS) samples from the National Reference Laboratory biobank (71 negative and 29 positive samples) and an additional 92 whole blood samples collected from infants from neonatal departments. These infants from seven treatment centers in the Dakar region were born to mothers infected with HIV-1 (n=91), HIV-2 (n= 8) or HIV-1/2 (n=1). The m-PIMA™ HIV 1/2 detect assay was evaluated on whole blood samples (n=100) with 92 HIV-1 samples and 8 HIV-2 samples from children born to HIV-infected mothers. The Cobas AmpliPreP/Cobas TaqMan (CAP/CTM) platform from Roche Diagnostic Laboratories was used as a reference for HIV-1 diagnosis and the Generic HIV-2 Viral Load Assay (Biocentric) was used as a reference for HIV-2 diagnosis. Performance was evaluated by calculating sensitivity (Se), specificity (Sp), positive predictive value (PPV), negative predictive value (NPV) and Cohen's kappa coefficient., Results: for HIV-1 detection on GeneXpert and m-PIMA, no discordance was found on the samples tested, i.e. a sensitivity of 100% (95% CI: 93.9-100%), a specificity of 100% (95% CI: 97.5-100%), a positive predictive value (PPV) of 100% (95% CI: 93.9-100%) and a negative predictive value (NPV) of 100% (95% CI: 97.5-100%). Agreement with Cobas AmpliPrep/Cobas TaqMan (CAP/CTM) was 100% with a Kappa coefficient of 1 (p<0.001, 95% CI) for both techniques. Similarly, the comparison between m-PIMA and generic biocentric for the detection of HIV-2 on the 8 samples tested showed perfect agreement., Conclusion: these results confirm the excellent performance of the Xpert® HIV-1 qual and m-PIMA™ HIV1/2 detect tests for the detection of HIV-1 and HIV-2 and encourage the extension of POC tests to improve access to EID in Senegal., Competing Interests: The authors declare no competing interests., (Copyright: Aissatou Sow Ndoye et al.)
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- 2022
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8. Prevalence and Predictors of Liver Fibrosis in People Living with Hepatitis B in Senegal.
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Ramírez Mena A, Ngom NF, Tine J, Ndiaye K, Fortes L, Ndiaye O, Fall M, Gaye A, Ka D, Seydi M, Wandeler G, and On Behalf Of The Sen-B Study Group
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- Hepatitis B virus, Humans, Liver Cirrhosis epidemiology, Male, Prevalence, Senegal epidemiology, Coinfection, HIV Infections complications, HIV Infections drug therapy, HIV Infections epidemiology, Hepatitis B complications, Hepatitis B epidemiology, Hepatitis B, Chronic complications, Hepatitis B, Chronic drug therapy, Hepatitis B, Chronic epidemiology
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Hepatitis B virus (HBV) infection is the first cause of liver cirrhosis and cancer in West Africa. Although the exposure to additional environmental and infectious risk factors may lead to the faster progression of liver disease, few large-scale studies have evaluated the determinants of HBV-related liver fibrosis in the region. We used transient elastography to evaluate the prevalence of liver fibrosis and assessed the association between HBV markers and significant liver fibrosis in a cohort of people living with HBV in Dakar, Senegal. The prevalence of significant liver fibrosis was 12.5% (95% confidence interval [CI] 9.6%−15.9%) among 471 people with HBV mono-infection (pwHBV) and 6.4% (95% CI 2.6%−12.7%) in 110 people with HIV/HBV co-infection (pwHIV/HBV) on tenofovir-containing antiretroviral therapy (p = 0.07). An HBV viral load > 2000 IU/mL was found in 133 (28.3%) pwHBV and 5 (4.7%) pwHIV/HBV, and was associated with significant liver fibrosis (adjusted odds ratio (aOR) 1.95, 95% CI 1.04−3.66). Male participants (aOR 4.32, 95% CI 2.01−8.96) and those with elevated ALT (aOR 4.32, 95% CI 2.01−8.96) were especially at risk of having significant liver fibrosis. Our study shows that people with an HBV viral load above 2000 IU/mL have a two-fold increase in the risk of liver fibrosis and may have to be considered for antiviral therapy, independent of other disease parameters.
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- 2022
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9. Performance of Xpert HIV-1 viral load test in Senegal: a country of high circulation of CRF02_AG.
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Sène PY, Diop-Ndiaye H, Ndoye AS, Kiernan B, Coulibaly K, Ndiaye O, Diallo S, Ndiaye AJS, Fall M, Ba AA, Camara M, Boye CSB, Ngom NF, Lejeune C, Ndour CT, and Kane CT
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- Humans, RNA, Viral, Senegal, Viral Load, HIV Infections diagnosis, HIV-1 genetics
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Introduction: the introduction of the point-of-care in HIV-1 viral load quantification appears to be a complementary strategy to the existing conventional system of the acceleration plan for the achievement of the three 90s in Senegal. The objective of this study was to evaluate the performance of the Xpert® HIV-1 viral load in the context of circulation of non-B, non-C subtypes., Methods: two hundred samples, were tested on Xpert® HIV-1 Viral Load using 1 ml of plasma in comparison to 600 μl on Abbott Real-time HIV-1 assay. The difference between viral load values was considered significant for Dlog <0.5 log copies/ml., Results: a good correlation (r=0.985) was noted and confirmed using passing-bablok regression (slope 1.048; 95% CI: 1.036 to 1.069) for 188 samples with samples. A mean difference of 0.0075 log10 copies/ml for a 95% confidence interval (CI) of 0.002 log10 copies/ml to 0.013 log10 copies/ml was obtained. Sensitivity and specificity were respectively 93.6% and 93.5% at the threshold of 1.6 log10 copies/ml and 100% and 99% at the threshold of 3.0 log10 copies/ml., Conclusion: these results show that Xpert® HIV-1 Viral Load has excellent performance. In Senegal, and can be used for HIV viral load monitoring., Competing Interests: The authors declare no competing interest., (Copyright: Pauline Yacine Sène et al.)
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- 2022
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10. Hepatitis B screening practices and viral control among persons living with HIV in urban Senegal.
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Ramírez Mena A, Tine JM, Fortes L, Ndiaye O, Ka D, Ngom NF, Ramette A, Bittel P, Seydi M, and Wandeler G
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- Adult, Female, Hepatitis B Surface Antigens, Hepatitis B virus genetics, Humans, Senegal epidemiology, Coinfection epidemiology, HIV Infections complications, HIV Infections drug therapy, HIV Infections epidemiology, Hepatitis B complications, Hepatitis B diagnosis, Hepatitis B epidemiology, Hepatitis B, Chronic complications, Hepatitis B, Chronic diagnosis, Hepatitis B, Chronic epidemiology
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Chronic hepatitis B virus (HBV) infection affects >10% of the general population and is the leading cause of liver cirrhosis and cancer in West Africa. Despite current recommendations, HBV is often not tested for in clinical routine in the region. We included all people living with HIV (PLWH) in care between March and July 2019 at Fann University Hospital in Dakar (Senegal) and proposed hepatitis B surface antigen (HBsAg) test to those never tested. All HBsAg-positive underwent HIV and HBV viral load (VL) and liver stiffness measurement. We evaluated, using logistic regression, potential associations between patient characteristics and (a) HBV testing uptake; (b) HIV/HBV co-infection among individual HBsAg tested. We determined the proportion of co-infected who had HBV DNA >20 IU/ml on ART and sequenced HBV polymerase in those with HBV replication.of 1076 PLWH in care, 689 (64.0%) had never had an HBsAg test prior to our HBV testing intervention. Women and individuals >40 years old were less likely to have been previously tested. After HBV testing intervention,107/884 (12.1%) PLWH were HBsAg-positive. Seven of 58 (12.1%) individuals newly diagnosed with HIV/HBV co-infection had a detectable HBV VL, of whom five were HIV-suppressed. Two patients on ART including 3TC and AZT as backbone showed the presence of the triple resistance mutation 180M/204I/80V. In this Senegalese urban HIV clinic, the majority of patients on ART had never been tested for HBV infection. One in ten co-infected individuals had a detectable HBV VL despite HIV suppression, and 8% were not receiving a TDF-containing regimen., (© 2021 The Authors. Journal of Viral Hepatitis published by John Wiley & Sons Ltd.)
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- 2022
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11. ART initiation in an outpatient treatment center in Dakar, Senegal: A retrospective cohort analysis (1998-2015).
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Ngom NF, Faye MA, Ndiaye K, Thiam A, Ndour CT, Etard JF, Sow PS, Seydi M, Delaporte E, and Cournil A
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- Adolescent, Adult, CD4 Lymphocyte Count, Cities, Female, Follow-Up Studies, HIV Infections epidemiology, Humans, Male, Middle Aged, Referral and Consultation, Retrospective Studies, Senegal, Socioeconomic Factors, Time-to-Treatment, Young Adult, Ambulatory Care, Anti-Retroviral Agents therapeutic use, HIV Infections drug therapy
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Objective: To examine how patient characteristics combined with ART eligibility expansions affect the initiation of antiretroviral therapy (ART) among eligible patients attending a referral center in Senegal from 1998 to 2015., Methods: This is a retrospective observational study carried out at the outpatient treatment Centre (Centre de Traitement Ambulatoire) in Dakar, Senegal, based on computerized medical records, gathered from 1998 to 2015, of ART-naïve patients over 15 years of age. ART eligibility was defined as (CD4 count below 200) or as (WHO stage 4) or as (WHO stage 3 with (CD4 count below 350 or with unavailable CD4 count)) in 1998-2010; as (CD4 count below 350) or as (WHO stage 3 or 4) in 2011-2013; as (CD4 count below 500) or as (WHO stage 3 or 4) in 2014-2015. Four periods were defined according to ART eligibility expansions and Senegal's HIV care history: 1998-2003 (P 1), 2004-2010 (P 2), 2011-2013 (P3), and 2014-2015 (P4). Patients were expected to participate financially in their treatment during the first period (P1)., Results: A total of 3651 patient records were included. The median patient age was 40 years (IQR: 32-48). Women represented 56% of the population. The median CD4 count was 183 cells/mm3. Overall, 53% of patients had CD4 < 200 cells/mm3 at entry. This proportion reached 45% in 2014-2015. 2535 patients (69%) were eligible for therapy, including 1503 (41%) who started ART. The proportion of treated patients among those who were eligible at entry or later increased steadily from 25%, 47%, 75% to 82% in the four periods, respectively. The median time to treatment decreased from 5.6 months (IQR: 3-11) in P1 to 0.8 months (IQR: 0-2) in P4. Eligible patients with more advanced disease (CD4<200 cells/mm3 and/or clinical stage 3 or 4) were more likely to be ART initiated than those with CD4≥200 cells/mm3 and/or clinical stage 1 or 2 at each stage of ART eligibility expansion., Conclusion: ART eligibility expansions were marked by a sharp increase in the proportion of eligible patients initiating treatment. These results show that in terms of management, the target of "Test and Treat" can be easily reached but that HIV testing will remain a key element to improve treatment success, as illustrated by the high proportion of people with advanced stage of infection at the time of ART initiation., Competing Interests: The authors have declared that no competing interests exist.
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- 2018
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12. Elderly and preventive care of the geriatric pathologies in African environment.
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Kâ O, Gaye A, Mbacké Leye MM, Ngom NF, Dia AT, Diop SN, and Sow AM
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- Aged, Aged, 80 and over, Female, Humans, Male, Senegal, Geriatrics trends, Preventive Medicine trends
- Abstract
Senegal will not be spared by the process of the aging of its population. In fact, according to surveys, the demographic increase in the population of the old people, which is 3.5% higher than the national average (2.5%). But for the time being, gerontology problems are not arising in terms of demographic weight, but rather in terms of the breaking up of solidarity networks, uncontrolled urbanization and poverty. As far as health is concerned, the old people generally are faced with the same problems as their Northern counterparts; they are exposed to chronic diseases that demand their taking in charge in a long period of time. Besides, these diseases are a great handicap and they are also disabling diseases. So taking them in charge puts a financial on their meager family budgets or their pensions. In addition, there are no specialists in geriatrics, and those working in the field did not receive any training for that. Moreover, most of our health facilities are lacking in diagnostic means. Therefore, gerontology-geriatrics solutions that are adapted to our socio-economic context should be assigned straight away. The problem is not about stopping the process of aging, which, as a physiological process, is inevitable and irreversible, but rather delaying its effects. The matter at issue will be about how to set up a decentralized and integrated program that is designed to fight against geriatric diseases and disorders and that mainly focuses on screening and primary and secondary prevention, for our low financial resources and the low medical equipment of our health facilities cannot help us to adequately take charge of complications related to these diseases.
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- 2016
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13. Evaluation of four tenofovir-containing regimens as first-line treatments in Cameroon and Senegal: the ANRS 12115 DAYANA Trial.
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Landman R, Koulla-Shiro S, Sow PS, Ngolle M, Diallo MB, Guèye NF, Le Moing V, Eymard-Duvernay S, Benalycherif A, Charpentier C, Peytavin G, Delaporte E, and Girard PM
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- Adenine administration & dosage, Adenine adverse effects, Adenine therapeutic use, Adult, Anti-HIV Agents administration & dosage, Anti-HIV Agents adverse effects, Antiretroviral Therapy, Highly Active, CD4 Lymphocyte Count, Cameroon, Drug Therapy, Combination, Female, Follow-Up Studies, Genotype, HIV Infections immunology, HIV Infections virology, Humans, Male, Medication Adherence, Middle Aged, Organophosphonates administration & dosage, Organophosphonates adverse effects, Senegal, Tenofovir, Treatment Outcome, Viral Load, Young Adult, Adenine analogs & derivatives, Anti-HIV Agents therapeutic use, HIV Infections drug therapy, HIV-1 genetics, Organophosphonates therapeutic use
- Abstract
Background: The aim of the present study was to determine appropriate tenofovir-based regimens meriting evaluation in large-scale randomized trials among sub-Saharan African patients., Methods: This was a randomized open-label 96-week prospective pilot study evaluating four first-line regimens: tenofovir/emtricitabine/nevirapine (group 1), tenofovir/lopinavir/ritonavir (group 2), tenofovir/emtricitabine/zidovudine (group 3) and tenofovir/emtricitabine/efavirenz (group 4) in antiretroviral-naive, HIV-1-infected patients in Senegal and Cameroon. The primary end point was defined as an HIV-1 RNA viral load <50 copies/ml (study detection limit) at week 16 in ≥50% of patients using intention-to-treat analysis., Results: At baseline, 119 patients included were 34% male, had a median plasma viral load of 5.4 log10 copies/ml and median CD4(+) T-cell count of 200 cells/mm(3) (range 53-358). The primary end point was achieved for groups 1, 3 and 4 (58% [n=31], 62% [n=29] and 53% [n=30], respectively), but not for group 2 (38% [n=29]). At week 96, undetectable HIV-1 RNA had been achieved in 74% of patients in group 1, 38% in group 2, 72% in group 3 and 73% in group 4. Patients with detectable HIV-1 RNA at week 16 were more likely to have baseline HIV-1 RNA≥100,000 copies/ml (adjusted OR 5.56, 95% CI 1.72, 16.67). HIV mutations associated with protease inhibitor resistance emerged in three patients, all of whom were in group 2. Anaemia occurred in two group 3 patients and was the only serious treatment-related adverse event., Conclusions: Three efficient and safe tenofovir-based triple regimens were identified; the two-drug regimen (tenofovir/lopinavir/ritonavir) did not achieve the protocol-defined virological threshold of efficacy.
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- 2014
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14. Efficacy and safety of unboosted atazanavir in combination with lamivudine and didanosine in naive HIV type 1 patients in Senegal.
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Landman R, Diallo MB, Gueye NF, Kane CT, Mboup S, Fall MB, Ndiaye B, Peytavin G, Bennai Y, Benalycherif A, Girard PM, and Sow PS
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- Adult, Atazanavir Sulfate, Drug Administration Schedule, Drug Therapy, Combination, Female, HIV Infections immunology, HIV Infections virology, HIV-1 drug effects, HIV-1 physiology, Humans, Male, Middle Aged, Pilot Projects, RNA, Viral blood, Reverse Transcriptase Inhibitors administration & dosage, Reverse Transcriptase Inhibitors adverse effects, Reverse Transcriptase Inhibitors therapeutic use, Senegal, Treatment Outcome, Anti-HIV Agents administration & dosage, Anti-HIV Agents adverse effects, Anti-HIV Agents therapeutic use, Didanosine administration & dosage, Didanosine adverse effects, Didanosine therapeutic use, HIV Infections drug therapy, Lamivudine administration & dosage, Lamivudine adverse effects, Lamivudine therapeutic use, Oligopeptides administration & dosage, Oligopeptides adverse effects, Oligopeptides therapeutic use, Pyridines administration & dosage, Pyridines adverse effects, Pyridines therapeutic use
- Abstract
The use of ritonavir as a protease inhibitor boost is rare in sub-Saharan Africa because a heat-stable formula is not available. We report the results of an open-label pilot trial with unboosted atazanavir in combination with lamivudine and didanosine as first-line therapy conducted in Senegal. Treatment-naive HIV-1 infected adult patients without active opportunistic disease were included. The primary endpoint was the proportion of patients with plasma HIV-1 RNA <400 copies/ml at week 48. Forty patients (12 men and 28 women; mean age +/- SD: 40 +/- 9 years) were included. Treatment was changed during the study for two patients (pregnancy, tuberculosis); one patient was lost to follow-up and one patient died (gastroenteritis with cachexia). At week 48, 78% [95% confidence interval (CI): 65-90%] and 68% (95% CI: 53-82%) of the patients had HIV-1 RNA <400 and <50 copies/ml, respectively (intent-to-treat analysis; not completer = failure). Among the seven patients with HIV-1 RNA >or=400 copies/ml at week 48, five were not compliant; genotyping analysis (n = 4) did not reveal a major mutation for protease inhibitors. The mean CD4 cell count change from baseline to week 48 was +238 +/- 79 cells/mm(3). The combination of unboosted atazanavir with lamivudine and didanosine was efficient and well tolerated in HIV-1-infected patients with results similar to those observed in Northern countries. These results suggest that unboosted atazanavir with its high genetic barrier could be a valuable alternative to NNRTIs in resource-limited countries in some HIV-1-infected patients in case of compliance issues with NNRTIs, intolerance to NNRTIs, resistance mutations to NNRTIs, in women with childbearing potential, or as a maintenance therapy in patients with virological suppression.
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- 2010
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15. [First cases of squamous cell carcinoma associated with cosmetic use of bleaching compounds].
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Ly F, Kane A, Déme A, Ngom NF, Niang SO, Bello R, Rethers L, Dangou JM, Dieng MT, Diousse P, and Ndiaye B
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- Administration, Topical, Black People, Carcinoma, Squamous Cell pathology, Carcinoma, Squamous Cell surgery, Female, Humans, Middle Aged, Senegal, Skin Neoplasms pathology, Skin Neoplasms surgery, Skin Pigmentation drug effects, Sodium Hypochlorite administration & dosage, Carcinoma, Squamous Cell chemically induced, Cosmetic Techniques adverse effects, Skin Neoplasms chemically induced, Sodium Hypochlorite adverse effects
- Abstract
Introduction: We report two cases of squamous cell carcinoma (SCC) in two black women (phenotype VI) using bleaching compounds for cosmetic purposes over a period of 15 years., Case Reports: Two women (aged 45 and 47 years) with a long history of cosmetic use of bleaching compounds consulted at a dermatology unit for skin tumours. A diagnosis of SCC was confirmed by histological examination of tumour biopsies. One patient was HIV-positive. Surgical treatment was performed in both cases: simple postoperative complications were seen in one patient but the other died at home following recurrence of carcinoma in the year following diagnosis., Discussion: To our knowledge, theses two cases represent the first description of SCC occurring after prolonged cosmetic use of bleaching compounds. Carcinoma occurred in both cases in skin exposed to sun. In our patients, the mechanism of carcinogenesis may have involved melanin destruction, solar exposure and corticosteroid-induced immunosuppression. A direct carcinogenic effect of hydroquinone or other unidentified compounds is another possibility; the carcinogenicity of hydroquinone is well established in rodents. While these observations do not provide formal proof of any implication of depigmentation products in SCC, they emphasize the need for monitoring of dark-skinned women using skin lighteners., (Copyright (c) 2010 Elsevier Masson SAS. All rights reserved.)
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- 2010
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16. Lipodystrophy and metabolic disorders in HIV-1-infected adults on 4- to 9-year antiretroviral therapy in Senegal: a case-control study.
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Mercier S, Gueye NF, Cournil A, Fontbonne A, Copin N, Ndiaye I, Dupuy AM, Cames C, Sow PS, Ndoye I, Delaporte E, and Simondon KB
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- Adult, Anti-HIV Agents therapeutic use, Case-Control Studies, Female, HIV Infections complications, HIV Infections epidemiology, HIV-Associated Lipodystrophy Syndrome epidemiology, Humans, Male, Metabolic Diseases epidemiology, Middle Aged, Senegal epidemiology, Young Adult, Anti-HIV Agents adverse effects, Antiretroviral Therapy, Highly Active adverse effects, HIV Infections drug therapy, HIV-1, HIV-Associated Lipodystrophy Syndrome chemically induced, Metabolic Diseases chemically induced
- Abstract
Objective: To assess adverse effects of long-term highly active antiretroviral therapy (HAART), that is, lipodystrophy and metabolic disorders, in a cohort of African patients., Methods: One hundred eighty HIV-1-infected patients treated with HAART for 4-9 years in Dakar and 180 age-matched and sex-matched controls were enrolled. Regional subcutaneous fat changes were assessed by physicians, and fasting blood samples were drawn. Centralization of body fat was estimated using skinfold ratio, waist circumference, and waist to hip ratio (WHR)., Results: Mean duration of HAART was 5.4 years. Main drugs received were zidovudine, stavudine, and protease inhibitors. The prevalence of moderate-severe lipodystrophy was 31.1% (95% confidence interval: 24.3 to 37.9), with 13.3%, 14.5%, and 3.3% for lipoatrophy, lipohypertrophy, and mixed forms, respectively. Mild-severe lipodystrophy affected 65.0% (58.0; 72.0) of patients. Stavudine was the only independent risk factor (any vs. none: odds ratio = 2.8; 1.4 to 5.5). Patients had lower body mass index and skinfolds but greater centralization of body fat (WHR, P < 0.0001 and skinfold ratio, P < 0.001), fasting glucose (P < 0.0001), homeostasis model assessment insulin resistance, and triglyceride levels (P < 0.01 for both) than controls. Moderately-severely lipodystrophic patients had higher triglyceride and low-density lipoprotein cholesterol than other patients (P < 0.001 and P < 0.05, respectively)., Conclusions: Moderate-severe lipodystrophy affected one third of West African patients on long-term HAART and was associated with a less favorable metabolic profile.
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- 2009
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17. [Neuromeningeal cryptococcosis in patients apparently non-immunodeficient: report of 3 cases in Dakar, Senegal].
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Ndiaye M, Soumaré M, Mapoure YN, Seydi M, Sène-Diouf F, Ngom NF, Sène MS, Sow AD, Diop AG, Sow PS, Ndiaye MM, and Ndiaye IP
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- Adult, Amphotericin B therapeutic use, Antifungal Agents therapeutic use, CD4 Lymphocyte Count, Fatal Outcome, Female, Fluconazole therapeutic use, HIV Seronegativity, Humans, Immunocompromised Host, Male, Meningitis, Cryptococcal immunology, Middle Aged, Senegal, Treatment Outcome, Meningitis, Cryptococcal diagnosis
- Abstract
Cryptococcal infection is common in immunocompromised patients. Its occurrence in immuno-competent patients is rare. We report here 3 cases of neuromeningeal cryptococcosis in patients without any immunosuppressive documented factors. They were respectively 25, 36 and 50 years old presenting clinical signs of chronic meningo-encephalitis. The HIV test was negative for all of them and the CD4 counts were normal. One patient died on the seventh day of the treatment with amphotericin B; the second was discharged on parents' request, while the third patient improved with intravenous fluconazole. This study suggests that when facing a sub-acute or chronic meningitis, an investigation for cryptococcal infection is recommended as before AIDS epidemic.
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- 2008
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18. Change over time of mortality predictors after HAART initiation in a Senegalese cohort.
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De Beaudrap P, Etard JF, Ecochard R, Diouf A, Dieng AB, Cilote V, Ndiaye I, Guèye NF, Guèye PM, Sow PS, Mboup S, Ndoye I, and Delaporte E
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- Adult, Female, Humans, Male, Prognosis, Proportional Hazards Models, Risk Factors, Senegal epidemiology, Survival Analysis, Time Factors, Antiretroviral Therapy, Highly Active, HIV Infections drug therapy, HIV Infections mortality, HIV-1
- Abstract
Background: In 1998, Senegal was among the first sub-Saharan African countries to launch a Highly active anti-retroviral therapy (HAART) access program. Initial studies have demonstrated the feasibility and efficacy of this initiative. Analyses showed a peak of mortality short after starting HAART warranting an investigation of early and late mortality predictors., Methods: 404 HIV-1-infected Senegalese adult patients were enrolled and data censored as of September 2005. Predictor effects on mortality were first examined over the whole follow-up period (median 46 months) using a Cox model and Shoenfeld residuals. Then, changes of these effects were examined separately over the early and late treatment periods; i.e., less and more than 6-month follow-up., Results: During the early period, baseline body mass index and baseline total lymphocyte count were significant predictors of mortality (Hazard Ratios 0.82 [0.72-0.93] and 0.80 [0.69-0.92] per 200 cell/mm3, respectively) while baseline viral load was not significantly associated with mortality. During the late period, viro-immunological markers (baseline CD4-cell count and 6-month viral load) had the highest impact. In addition, the viral load at 6-month was a significant predictor (HR = 1.42 [1.20-1.66])., Conclusion: In this cohort, impaired clinical status could explain the high early mortality rate while viro-immunological markers were rather predictors of late mortality.
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- 2008
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19. Mortality and causes of death in adults receiving highly active antiretroviral therapy in Senegal: a 7-year cohort study.
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Etard JF, Ndiaye I, Thierry-Mieg M, Guèye NF, Guèye PM, Lanièce I, Dieng AB, Diouf A, Laurent C, Mboup S, Sow PS, and Delaporte E
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- AIDS-Related Opportunistic Infections mortality, Adolescent, Adult, Anti-HIV Agents therapeutic use, Body Mass Index, CD4 Lymphocyte Count, Cause of Death, Epidemiologic Methods, Female, HIV Infections immunology, HIV Infections mortality, Hemoglobins metabolism, Humans, Male, Middle Aged, Mycobacterium Infections mortality, Senegal epidemiology, Antiretroviral Therapy, Highly Active, Developing Countries, HIV Infections drug therapy, HIV-1
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Objectives: To evaluate survival and investigate causes of death among HIV-1 infected adults receiving HAART in Senegal., Design: An observational prospective cohort., Methods: Mortality was assessed in the first patients enrolled between August 1998 and April 2002 in the Senegalese antiretroviral drug access initiative. First-line regimen combined two nucleoside reverse transcriptase inhibitors and either a non-nucleoside reverse transcriptase inhibitor or a protease inhibitor. The most likely causes of death were ascertained through medical records or post-mortem interviews (verbal autopsy)., Results: Four hundred and four patients (54.7% women) were enrolled in the study and were followed for a median of 46 months (interquartile range: 32-57 months) after HAART initiation. At baseline, 5% were antiretroviral therapy (ART) non-naive, 39 and 55% were respectively at CDC stage B and C, median age, CD4 cell count and viral load were 37 years, 128 cells/microl and 5.2 log cp/ml, respectively. Ninety-three patients died during follow-up and the overall incidence rate of death was 6.3/100 person-years [95% confidence interval (CI), 5.2-7.7]. During the first year after HAART initiation, 47 patients died and seven were lost to follow-up, yielding to a probability of dying of 11.7% (95% CI, 8.9-15.3%). The death rate, which was highest during the first year after HAART initiation, decreased with time yielding a cumulative probability of dying of 17.4% (95% CI, 13.9-21.5%) and 24.6% (95% CI, 20.4-29.4%) at 2 and 5 years. Causes of death were ascertained in 76 deaths. Mycobacterial infections, neurotropic infections and septicaemia were the most frequent likely causes of death., Conclusions: This study underlines the early mortality pattern after HAART initiation and highlights the leading role of mycobacterial infections in the causes of death.
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- 2006
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20. [Efficacy and tolerance of antiretroviral therapy in HIV-2 infected patients in Dakar: preliminary study].
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Ndour CT, Batista G, Manga NM, Guèye NF, Badiane NM, Fortez L, and Sow PS
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- AIDS-Related Opportunistic Infections epidemiology, CD4 Lymphocyte Count, HIV Infections immunology, HIV Protease Inhibitors therapeutic use, HIV-1 drug effects, HIV-1 isolation & purification, HIV-2 isolation & purification, Humans, Retrospective Studies, Senegal, Treatment Outcome, Anti-HIV Agents adverse effects, Anti-HIV Agents therapeutic use, HIV Infections drug therapy, HIV-2 drug effects
- Abstract
Objective: The authors had for aim to evaluate the clinical and immunological response as well as the tolerance to antiretroviral therapy in HIV-2 infected patients., Design: A retrospective chart review was made from August 1998 to August 2004., Results: 188 patients were on protease inhibitor based regimen. 153 (81.38%) were HIV-1 and 35 (18.62%) HIV-2 infected patients. The mean weight gain was significantly higher in the HIV-2 group at months 9 and 12 (P=0.02 et P=0.01 respectively), whereas CD4 cells count gain was higher in the HIV-1 group at month 6 (P=0.004). New AIDS defining criteria are less likely to occur in HIV-2 infected patients on HAART than in HIV-1 (P=0.004). Lipodystrophy syndrome was present only in HIV-1 infected patients., Conclusion: Antiretroviral therapy in HIV-2 infected patients shows similar clinical and immunological efficacy than in HIV-1 infected ones and is also well tolerated.
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- 2006
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21. Low rate of genotypic HIV-1 drug-resistant strains in the Senegalese government initiative of access to antiretroviral therapy.
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Vergne L, Kane CT, Laurent C, Diakhaté N, Gueye NF, Gueye PM, Sow PS, Faye MA, Liégeois F, Ndir A, Lanièce I, Peeters M, Ndoye I, Mboup S, and Delaporte E
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- Adult, Antiretroviral Therapy, Highly Active, Developing Countries, Female, Follow-Up Studies, Genotype, HIV Infections virology, HIV-1 genetics, Humans, Male, Middle Aged, Mutation, RNA, Viral blood, Senegal, Viral Load, Anti-HIV Agents therapeutic use, Drug Resistance, Viral genetics, HIV Infections drug therapy, HIV-1 drug effects
- Abstract
Objective: To monitor the prevalence of antiretroviral (ARV)-resistant HIV-1 viruses, and the genotypic mutations in patients enrolled in the Senegalese initiative for access to antiretroviral treatment (ART)., Methods: A total of 80 patients with a virological follow-up of at least 6 months were selected, 68 were ART-naive and 12 ART-experienced. Genotypic resistance to ARV was studied at baseline for a random subset of patients and at each rebound in plasma viral load during ART, by sequencing the protease and reverse transcriptase genes., Results: At baseline, 66 patients received highly active antiretroviral therapy (HAART) [2 nucleoside reverse transcriptase inhibitors (NRTIs) +1 protease inhibitor (PI) (n = 64) or 2 NRTIs + 1 non-nucleoside reverse transcriptase inhibitor (NNRTI) (n = 2)] and 14 patients (17.5%) started with a dual therapy because of ongoing antitubercular therapy or efficient previous bitherapy for the ART-experienced patients. The emergence of drug-resistant viruses (n = 13) during follow-up was more frequent in ART-experienced patients than in ART-naive patients, 41.7 versus 11.8%, resistant viruses emerged at comparable follow-up periods, a median of 17.8 and 18.3 months, respectively. In patients receiving zidovudine and lamivudine in their drug regimen, resistance to lamivudine was more frequent than to zidovudine. Two of the three patients, with viruses resistant to PIs, acquired mutations associated with cross-resistance. Strikingly, five (39%) of the 13 patients developed resistances to drugs that they had never received (n = 3) or that they received 18 or 36 months ago (n = 2). Didanosine/stavudine pressure had selected zidovudine-resistant viruses in four patients, and indinavir had selected a nelfinavir-resistant virus in one patient., Conclusion: In contrast to other reports from developing countries where patients had received ARVs in an uncontrolled manner, our study showed that implementation of HAART together with good clinical, biological and logistical monitoring can reduce the emergence of resistant strains in Africa.
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- 2003
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22. The Senegalese government's highly active antiretroviral therapy initiative: an 18-month follow-up study.
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Laurent C, Diakhaté N, Gueye NF, Touré MA, Sow PS, Faye MA, Gueye M, Lanièce I, Touré Kane C, Liégeois F, Vergne L, Mboup S, Badiane S, Ndoye I, and Delaporte E
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- Acquired Immunodeficiency Syndrome drug therapy, Adult, CD4 Lymphocyte Count, Cohort Studies, Drug Resistance, Viral, Feasibility Studies, Female, Government Programs, HIV Infections blood, HIV Infections complications, Humans, Male, Middle Aged, Patient Compliance, Prospective Studies, RNA, Viral blood, Senegal, Treatment Outcome, Viral Load, Anti-HIV Agents therapeutic use, Antiretroviral Therapy, Highly Active, HIV Infections drug therapy, HIV-1 drug effects, HIV-1 genetics, HIV-1 isolation & purification
- Abstract
Objective: To study the feasibility, effectiveness, adherence, toxicity and viral resistance in an African government HAART initiative., Methods: A prospective observational cohort study started in Dakar in August 1998. Initial treatment consisted of two nucleoside reverse transcriptase inhibitors and one protease inhibitor. The patients attended monthly medical examinations. Plasma HIV-1 RNA and CD4 cell counts were determined at baseline and every 6 months. Intention-to-treat analyses were performed., Results: Fifty-eight treatment-naive patients, mostly infected by HIV-1 strain CRF02-AG, were enrolled. Most were at an advanced stage of HIV disease (86.2% had AIDS). Adherence was good in 87.9% of patients and treatment was effective in most of them. Thus, HIV-1 RNA was undetectable in 79.6, 71.2, 51.4 and 59.3% of patients at months 1, 6, 12 and 18, respectively and the median viral load reduction was approximately 2.5 log10 copies/ml. The CD4 cell count rose by a median of 82, 147 and 180 x 106 cells/l at months 6, 12 and 18, respectively. At the same time points, the cumulative probability of remaining alive or free of new AIDS-defining events was 94.8, 85.0 and 82.3%. Most adverse effects (80.8%) were mild or moderate and only two cases of drug resistance occurred., Conclusion: This study shows that HAART is feasible and well tolerated in African patients. Clinical and biological results were comparable to those seen in western cohorts, despite differences in the HIV-1 subtype distribution and an advanced disease stage when the treatment was initiated. Contrary to other recent studies in Africa, viral resistance rarely emerged.
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- 2002
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