scholarly journals Human Immunodeficiency Virus-associated Neurocognitive Impairment in Diverse Resource-limited Settings

Author(s):  
Kevin R Robertson ◽  
Hongyu Jiang ◽  
Johnstone Kumwenda ◽  
Khuanchai Supparatpinyo ◽  
Christina M Marra ◽  
...  
2020 ◽  
Vol 222 (2) ◽  
pp. 263-272
Author(s):  
Cecilia Costa ◽  
Silvia Scabini ◽  
Arvind Kaimal ◽  
William Kasozi ◽  
Jessica Cusato ◽  
...  

Abstract Background Data on bone health and renal impairment in people with human immunodeficiency virus (HIV) in resource-limited settings are limited. The primary aim of this study was to investigate the potential role of calcaneal quantitative ultrasonography (QUS) in predicting bone mineral density (BMD) reduction in a population of Ugandan HIV-infected  individuals receiving long-term antiretroviral therapy; the secondary end point was to assess the prevalence of proximal tubular dysfunction and the correlation between elevated urinary retinol-binding protein–urinary creatinine ratio (uRBP/uCr) and reduced BMD. Methods We conducted a cross-sectional study at the Infectious Diseases Institute, Kampala, Uganda. We included 101 HIV-infected adults who had been receiving continuous antiretroviral therapy for ≥10 years and had undergone dual-energy x-ray absorptiometry (DXA) during the previous 12 months. All patients underwent calcaneal QUS evaluation and urine sample collection. Results DXA BMD measurements were significantly associated (P < .01) with calcaneal speed of sound, broadband ultrasound attenuation, and QUS index. Forty-seven individuals (47%) had abnormal uRBP/uCr values. A significant inverse correlation was observed between uRBP/uCr and DXA T scores (lumbar [P = .03], femoral neck [P < .001], and total hip [P = .002]). Conclusions Calcaneal QUS results showed a moderate correlation with DXA outputs. The identified high prevalence of subclinical tubular impairment also highlights the importance of expanding access to tenofovir disoproxil fumarate–sparing regimens in resource-limited settings.


2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Richard A. Murphy ◽  
Lilishia Gounder ◽  
Thandekile C. Manzini ◽  
Pratistadevi K. Ramdial ◽  
Carmen Castilla ◽  
...  

Abstract The diagnosis of histoplasmosis in patients with human immunodeficiency virus in southern Africa is complicated by the nonspecific presentation of the disease in this patient group and the unavailability of sensitive diagnostics including antigen assays. Treatment options are also limited due to the unavailability of liposomal amphotericin and itraconazole, and the inability to perform therapeutic drug monitoring further confounds management. We present 3 clinical cases to illustrate the limits of diagnosis and management in the southern African context, and we highlight the need for additional diagnostic tools and treatment options in resource-limited settings.


2019 ◽  
Vol 222 (3) ◽  
pp. 381-390 ◽  
Author(s):  
Jacqueline Kyosiimire-Lugemwa ◽  
Zacchaeus Anywaine ◽  
Andrew Abaasa ◽  
Jonathan Levin ◽  
Ben Gombe ◽  
...  

Abstract Background Cotrimoxazole preventive therapy (CPT) in human immunodeficiency virus (HIV) infection is a World Health Organization–recommended standard of care in resource-limited settings, but the mechanism of CPT’s beneficial effects is unclear. The COSTOP trial (ISRCTN44723643) evaluated the noninferiority of discontinuing CPT in stabilized patients on antiretroviral therapy. The COSTOP immunology substudy was conducted on a subset of COSTOP participants randomized to continue CPT (n = 86) or discontinue CPT (placebo, n = 86) as daily treatment for 1 year. Methods We evaluated whether CPT reduces microbial translocation, indicated by the presence of bacterial lipopolysaccharide (LPS) and LPS control factors such as soluble CD14 (sCD14) and endotoxin core antibody (EndoCAb immunoglobulin M [IgM]) in plasma. Intestinal barrier damage as indicated by plasma intestinal fatty acid binding protein (IFABP), T-cell activation, and the inflammatory markers C-reactive protein (CRP), interleukin 6 (IL-6), and tumor necrosis factor α (TNF-α) were also evaluated. Results We found no significant change in markers of microbial translocation (LPS, IFABP, sCD14, and T-cell activation), with decreased EndoCAb IgM. There was significant increase in inflammation markers (CRP and IL-6) after stopping CPT compared to those who continued CPT. Conclusions These results add to the evidence of immunological benefits of CPT among HIV-infected populations in resource-limited settings. However, no evidence of reducing microbial translocation was observed.


2017 ◽  
Vol 10 ◽  
pp. 117863371774959 ◽  
Author(s):  
Idris Abdullahi Nasir ◽  
Anthony Uchenna Emeribe ◽  
Iduda Ojeamiren ◽  
Hafeez Aderinsayo Adekola

There has been tremendous breakthrough in the development of technologies and protocols for counselling, testing, and surveillance of resistant human immunodeficiency virus strains for efficient prognosis and clinical management aimed at improving the quality of life of infected persons. However, we have not arrived at a point where services rendered using these technologies can be made affordable and accessible to resource-limited settings. There are several technologies for monitoring antiretroviral resistance, each with unique merits and demerits. In this study, we review the strengths and limitations of prospective and affordable technologies with emphasis on those that could be used in resource-limited settings.


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