Open Access Publications

Open Access HIV & TB PublicationsThe Victor Daitz Information Gateway provides financial support to HIV and TB researchers at the University of KwaZulu-Natal wishing to publish papers in Open Access journals. The list of Open Access articles below are papers published with the support of the Victor Daitz Information Gateway.

  • Christina C Chang, Richard Kangethe, Saleha Omarjee, Keshni Hiramen, Bernadett Gosnell, Katlego Sojane, Mohamed-Yunus S Moosa, Sharon R Lewin, Martyn A French, Thumbi Ndung’u

    Open Forum Infectious Diseases, Vol 4, Issue 2, 02/2017

    We measured human immunodeficiency virus (HIV) ribonucleic acid (RNA) in paired cerebrospinal fluid (CSF) and plasma samples in a prospective study of 91 HIV-infected, antiretroviral therapy-naive patients with cryptococcal meningitis. Cerebrospinal fluid HIV RNA was lower than in plasma (median 4.7 vs 5.2 log10 copies/mL, P < .0001) and positively correlated with plasma HIV RNA, peripheral CD4+ T-cell percentage, and CSF CXCL10. Plasma/CSF ratio of HIV RNA ranged widely from 0.2 to 265.5 with a median of 2.6. Cerebrospinal fluid quantitative cryptococcal culture positively correlated with CSF CCL2 and CCL3. CSF-plasma viral discordance was not associated with cryptococcal-associated immune reconstitution inflammatory syndrome.

  • Manimbulu Nlooto

    PLoS One, Vol 12, Issue 2, 02/2017

    A cross sectional study, using researcher-administered questionnaires, was carried out among HIV-infected patients in eight public sector healthcare facilities in KwaZulu-Natal between April and October 1024. Self-reports of comorbidities, co-infections and side effects were analyzed with respect to factors such as age, gender, race, and health care seeking behavior including the use of traditional medicine. Cross-tabulations were conducted to test the association between factors and the use of traditional medicine, using Pearson chi-squared (χ2) test. Simple and multiple logistic regression models tested the association of the use of traditional medicine with age, gender, race, side effects and comorbidities. Odds ratios with 95% confidence intervals were estimated. Missing values were handled, defined and treated as missing values in the final analysis.

    Overall, 29.5% (n = 516) of the survey participants reported having other comorbidities and or co-infections besides their HIV condition. Same participants reported two or more comorbidities. Almost forty percent of participants (208/531, 39.17%) reported having hypertension as the most noninfectious comorbidity while 21.65% of participants (115/531) had tuberculosis accounting for the most infectious comorbidity. Almost eight percent of participants (142/1748, 8.12%) reported using traditional medicine after starting with cART. Sixty out of 142 participants (60/142, 42.25%) on cART resorted to the use of traditional medicine for the management of comorbidities and or co-infections of their HIV infection. Overall, 311 out of 1748 participants (17.80%) complained of ARVs related side-effects. Forty-five percent of those with side-effects (141/311, 45.34%) reported taking various types of medicines for treating side-effects, with 90.07% of them (127/141) using medicines prescribed by biomedically trained doctors or by pharmacy personnel as over-the -counter medicines, p <0. 001. Very few participants (14/141, 9.93%) resorted to the use of traditional medicine for treating side effects associated with antiretroviral therapy with no significant difference (p=0.293). In a multiple logistic regression, after adjusting for age, gender, race and side-effects due to antiretroviral therapy, odds for using traditional medicine were almost two times higher [odds ratio = 1.884, 95% Confidence Interval 1.317–2.695] with those participants having comorbidities and co-infections, with a significant difference p-value< 0.001.

    Comorbidities, co-infections and side effects are prevalent among HIV-infected patients attending public sector healthcare facilities. Odds of using traditional medicine were almost two times higher and significantly associated with the presence of comorbidities and co-infections than for other factors. The presence of such comorbid health problems does not explain the increased use of traditional medicine among HIV-infected patients on antiretroviral therapy. Findings from this study should be interpreted cautiously as they cannot be generalized to the entire population of HIV-infected patients in KwaZulu-Natal. Studies on safety and efficacy of herbal traditional medicines are needed for beneficiation of the minority of patients who still resort to them for co-treatment with combination antiretroviral therapy.

  • Ginindza TG, Dlamini X, Almonte M, Herrero R, Jolly PE, Tsoka-Gwegweni JM, Weiderpass E, Broutet N, Sartorius B

    PLoS One, Vol 12, Issue 1, 01/2017

    High risk human papillomavirus (hr-HPV) infection and the dual burden of HIV remains a huge challenge in some low-income countries (LICs) such as Swaziland with limited or no data. We estimated the prevalence and investigated determinants of hr-HPV, including HIV infection among sexually active women in Swaziland.

    A total of 655 women aged between 15 and 49 years from five health facilities were randomly enrolled using a cross-sectional study design. Cervical cells were tested for hr-HPV types using GeneXpert HPV Assays.

    The overall weighted hr-HPV prevalence was 46.2% (95%CI: 42.8–49.5). Of hr-HPV infected women, 12.4% (95%CI: 8.6–17.5) were HPV16-positive, 13.8% (95%CI:12.0–15.8) were positive for HPV18/45, 26.7% (95%CI: 24.2–29.3) for HPV31/33/35/52/58, 7.6% (95%CI: 7.6–11.9) for HPV51/59 and 11.0%, (95%CI: 7.9–15.3) for HPV39/56/66/68. Prevalence of hr-HPV decreased with increasing age. Overall HIV prevalence remained high (42.7%; 95%CI: 35.7–46.2). HIV infection was associated with hr-HPV infection (Adjusted OR = 4.9, 95%CI: 3.043–7.8, p<0.001). Overall hr-HPV/HIV co-infection was 24.4% (95%CI: 20.3–29.1) which was significantly higher among younger age groups (p<0.001). Prevalence of multiple group hr-HPV infection was significantly higher in HIV-positive versus -negative women (27.7% and 12.7% respectively, p<0.001). The presence, absence or unknown of history of STI with HIV did not appear to modify the relationship with hr-HPV (OR = 4.2, 95%CI: 2.6–7.1, OR = 4.6, 95%CI: 2.8–7.7, p<0.001, p<0.001 and OR = 4.1, 95%CI: 1.3–13.4, p<0.021 respectively).

    The prevalence of hr-HPV infection was high and significantly associated with HIV among sexually active women. Furthermore, the study has provided essential information about the HIV link with hr-HPV infections which may explain the high prevalence among HIV infected women. This can contribute to policy development and planning of prevention strategies incorporating HPV infection prevention especially among youth and HIV infected people.

  • Mntlangula NM, Khuzwayo, N, & Taylor M

    Health SA Gesondheid, Vol 22, Issue , 12/2017

    HIV and AIDS, sexually transmitted infections (STIs) and tuberculosis (TB) are common co-infections in South Africa, and constitute major public health problems. Nurses have frequent contact with HIV positive and TB co-infected patients, their counselling behaviour being influenced by knowledge about counselling as well as their beliefs, attitudes and perceptions about barriers to counselling.

    The purpose of the survey was to assess the knowledge, attitude and beliefs of nurses about behavioural counselling for HIV and AIDS, STIs and TB (HAST) in three areas of the eThekwini Municipality.

    This was a quantitative descriptive cross sectional study, with stratified sampling being used to select 87 nurses from 24 PHC facilities who completed self-administered questionnaires. The most significant factors associated with the knowledge, attitude and beliefs of nurses about counselling behaviour were their age and level of education. Nurses were well informed about counselling behaviour (mean scores 4.1/5). However, the potential barriers to implementing effective counselling behaviour included their negative perceptions about counselling in HAST.

    There is an urgent need for further studies to explore barriers to counselling behaviour and how these can be addressed by the nurses and their managers.

  • Parboosing R, Chonco L, de la Mata FJ, Govender T, Maguire GE, Kruger HG

    International Journal of Nanomedicine, Vol 12, Issue , 01/2017

    Encapsidation, the process during which the genomic RNA of HIV is packaged into viral particles, is an attractive target for antiviral therapy. This study explores a novel nanotechnology-based strategy to inhibit HIV encapsidation by an RNA decoy mechanism. The design of the 16-mer oligoribonucleotide (RNA) decoy is based on the sequence of stem loop 3 (SL3) of the HIV packaging signal (Ψ). Recognition of the packaging signal is essential to the encapsidation process. It is theorized that the decoy RNA, by mimicking the packaging signal, will disrupt HIV packaging if efficiently delivered into lymphocytes by complexation with a carbosilane dendrimer. The aim of the study is to measure the uptake, toxicity, and antiviral activity of the dendrimer–RNA nanocomplex.

    A dendriplex was formed between cationic carbosilane dendrimers and the RNA decoy. Uptake of the fluorescein-labeled RNA into MT4 lymphocytes was determined by flow cytometry and confocal microscopy. The cytoprotective effect (50% effective concentration [EC50]) and the effect on HIV replication were determined in vitro by the methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay and viral load measurements, respectively.
     

    Flow cytometry and confocal imaging demonstrated efficient transfection of lymphocytes. The dendriplex containing the Ψ decoy showed some activity (EC50 =3.20 µM, selectivity index =8.4). However, there was no significant suppression of HIV viral load.
     

    Oligoribonucleotide decoys containing SL3 of the packaging sequence are efficiently delivered into lymphocytes by carbosilane dendrimers where they exhibit a modest cytoprotective effect against HIV infection.

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