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1.
J Egypt Natl Canc Inst ; 35(1): 39, 2023 Dec 07.
Article in English | MEDLINE | ID: mdl-38060078

ABSTRACT

INTRODUCTION: The second most deadly gynecological cancer worldwide, cervical cancer is steadily on the rise in sub-Saharan Africa, while vaccination programs are struggling to get off the ground. This systematic review's aim was to assess the prevalence and distribution of high- and low-risk HPV genotypes in West African women. METHODS: Original studies were retrieved from PubMed/Medline, Embase, Scopus, Google Scholar, and Science Direct. In these studies, Human papillomavirus (HPV) DNA was assessed in cervical samples by polymerase chain reaction (PCR), Hybrid capture, and sequencing. The quality of the articles was assessed and the results were extracted and reviewed. RESULTS: Thirty-nine studies from 10 West African countries were included for the systematic review including 30 for the pooled analysis. From an overall of 17358 participants, 5126 of whom were infected with at least one HPV genotype, the systematic review showed a prevalence varying from 8.9% to 81.8% in the general population. In contrast, the pooled prevalence of infection was 28.6% (n = 3890; 95% CI 27.85-29.38), and HPV-52 (13.3%), HPV-56 (9.3%), and HPV-35 (8.2) were the most frequent. Quadrivalent and nonavalent vaccines covered 18.2% and 55.8% of identified genotypes respectively. CONCLUSION: Faced with this growing public health challenge in West Africa, it would be necessary for all its countries to have reliable data on HPV infection and to introduce the nonavalent vaccine. A study of the genotypic distribution of HPV in high-grade precancerous lesions and cervical cancer would be very useful in West Africa.


Subject(s)
Papillomavirus Infections , Uterine Cervical Neoplasms , Humans , Female , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/prevention & control , Uterine Cervical Neoplasms/pathology , Human Papillomavirus Viruses , Vaccination Coverage , Papillomavirus Infections/epidemiology , Papillomavirus Infections/genetics , Papillomavirus Infections/prevention & control , Papillomaviridae/genetics , Genotype , Prevalence
2.
BMC Med Genomics ; 16(1): 246, 2023 10 16.
Article in English | MEDLINE | ID: mdl-37845715

ABSTRACT

BACKGROUND: The clinical manifestations of coronavirus disease (COVID-19) can vary widely, ranging from asymptomatic to severe, and may be influenced by the host genetic background. The aim of the present study was to determine the frequencies of HLA-DRB1*11 and HLA-DRB1*12 allele polymorphisms and their associations with COVID-19. METHODS: In this cross-sectional study, 198 subjects were enrolled, including 150 COVID-19 positive cases and 48 subjects who tested negative for COVID-19. Participants were recruited from the emergency, intensive care, and infectious diseases departments of the Bogodogo Centre University Hospital (CHU-B) or the routine laboratory of Centre de Recherche Biomoléculaire Pietro Annigoni (CERBA). Genomic DNA was extracted from nasopharyngeal swabs samples and multiplex PCR-SSP was used to detect the HLA-DRB1*11 and HLA-DRB1*12 alleles. The study was approved by CERS (№ 2021-02-033). RESULTS: The positive cases were categorized into 38 asymptomatic (CC+), 60 symptomatic (NC+), and 52 severe cases (SC+). Females were more frequent in the overall study population (53.0%, 105/198) as well as in the negative group's CC- (68.75%, 33/48) and SC+ (57.69%, 30/52 negative groups, whereas males were more frequent in the CC+ (63.16%, 24/38) and NC+ (53.33%, 32/60) groups. The highest mean age was observed in the SC + group. A frequency of 19.19% (38/198) and 14.65% (29/198) was found for the HLA-DRB1*11 and HLA-DRB1*12 alleles, respectively. Individuals carrying the HLA-DRB1*11 allele had an approximately sixfold higher risk of asymptomatic SARS-CoV-2 infection (OR = 5.72 [1.683-19.442], p = 0.005) based on the association analysis. CONCLUSIONS: Altogether, the present study reports high frequency of HLA-DRB1*11 and HLA-DRB1*12 alleles within a population from Ouagadougou, Burkina Faso. The results suggest that individuals carrying the HLA-DRB1*11 allele are more susceptible to COVID-19 infection but may not display symptoms.


Subject(s)
COVID-19 , Male , Female , Humans , HLA-DRB1 Chains/genetics , Gene Frequency , Burkina Faso , Cross-Sectional Studies , COVID-19/genetics , SARS-CoV-2/genetics , Polymorphism, Genetic , Alleles , Genetic Predisposition to Disease
3.
Ann Pathol ; 43(6): 491-494, 2023 Nov.
Article in French | MEDLINE | ID: mdl-37716866

ABSTRACT

We report a case of primary melanoma of a female urethra diagnosed at a non-metastatic stage in a 48-year-old patient with a history of breast carcinoma treated with radiotherapy and hormone therapy. The patient was consulting for dysuria, hematuria, and perineal pain. The clinical examination found a prolapsed and black mass, developed at the expense of the urethra and located at the anterosuperior part of the vulva. The mass biopsy revealed a proliferation of fusiform and globular cells loaded with black pigment expressing the anti-HMB 45 and PS 100 antibodies. The extension assessment showed an absence of secondary localization. The patient underwent total cystourethrectomy without inguinal lymphadenectomy. There was no recurrence observed on day 100 following the surgery.


Subject(s)
Breast Neoplasms , Melanoma , Urethral Neoplasms , Humans , Female , Middle Aged , Urethra/pathology , Urethra/surgery , Urethral Neoplasms/diagnosis , Urethral Neoplasms/pathology , Urethral Neoplasms/surgery , Melanoma/pathology , Vulva/pathology
4.
J Exp Pharmacol ; 15: 231-240, 2023.
Article in English | MEDLINE | ID: mdl-37275787

ABSTRACT

Purpose: This study aimed to provide pharmacological evidence of Pseudocedrela kotschyi and Ximenia americana in preventing or healing peptic ulcers claimed by traditional healers in Burkina Faso. Methods: The trunk bark of Pseudocedrela kotschyi and the roots bark of Ximenia americana (Olacaceae) were macerated in mixed ethanol/water (80:20), respectively, to obtain dried extracts. Two models of hydrochloric acid (HCl, 0.3 M/ethanol, 60%) and hypothermic stress-induced peptic ulcer were used. The cytoprotective effect of individual or combined plant extracts was assessed at 1; 10; 30mg/kg. bw. Then, the healing effect of the extracts at 10mg/kg.bw was evaluated within 21 days of treatment on the hydrochloric acid-induced ulcer model. The extracts' antioxidant activity and phenolic content were assessed to support the plant extracts' efficiency. Results: The extracts of P. kotschyi and X. americana at 10 mg/kg.bw reduced ulceration index in hydrochloric acid- and hypothermic stress-ulcer models by more than 83% and 65%, respectively. The extract from X. americana at 10mg/kg.bw allowed complete ulcer healing but not the association of the two plant extracts. The plant extracts had IC50of inhibition of DPPH radical lower than 5µg/mL and total ferric reducing antioxidant power of more than 77 mg EQAA/100mg. The total polyphenolic content was 64.82 ±0.99 and 53.75 ±1.39 mg EGA/g of dried extract of P. kotschyi and X. americana, respectively. Conclusion: X. americana extract is better than the combined two plant extracts in gastric cytoprotection and ulcer healing. Further investigations are needed to highlight mechanism-based effects.

5.
PLoS Med ; 20(1): e1004143, 2023 01.
Article in English | MEDLINE | ID: mdl-36634119

ABSTRACT

BACKGROUND: Sub-Saharan Africa (SSA) has the highest cervical cancer (CC) burden globally-worsened by its HIV epidemics. In 2020, the World Health Organization (WHO) introduced a CC elimination strategy with goals for vaccination, screening, and treatment. To benchmark progress, we examined temporal trends in screening coverage, percent screened at least twice by the age of 45, screening coverage among women living with HIV (WLHIV), and pre-cancer treatment coverage in SSA. METHODS AND FINDINGS: We conducted a systematic analysis of cross-sectional population-based surveys. It included 52 surveys from 28 countries (2000 to 2020) with information on CC screening among women aged 25 to 49 years (N = 151,338 women). We estimated lifetime and past 3-year screening coverage by age, year, country, and HIV serostatus using a Bayesian multilevel model. Post-stratification and imputations were done to obtain aggregate national, regional, and SSA-level estimates. To measure re-screening by age 45, a life table model was developed. Finally, self-reported pre-cancer treatment coverage was pooled across surveys using a Bayesian meta-analysis. Overall, an estimated 14% (95% credible intervals [95% CrI]: 11% to 21%) of women aged 30 to 49 years had ever been screened for CC in 2020, with important regional and country-level differences. In Eastern and Western/Central Africa, regional screening coverages remained constant from 2000 to 2020 and WLHIV had greater odds of being screened compared to women without HIV. In Southern Africa, however, screening coverages increased and WLHIV had equal odds of screening. Notably this region was found to have higher screening coverage in comparison to other African regions. Rescreening rates were high among women who have already been screened; however, it was estimated that only 12% (95% CrI: 10% to 18%) of women had been screened twice or more by age 45 in 2020. Finally, treatment coverage among 4 countries with data was 84% (95% CrI: 70% to 95%). Limitations of our analyses include the paucity of data on screening modality and the few countries that had multiple surveys. CONCLUSION: Overall, CC screening coverage remains sub-optimal and did not improve much over the last 2 decades, outside of Southern Africa. Action is needed to increase screening coverage if CC elimination is to be achieved.


Subject(s)
HIV Infections , Uterine Cervical Neoplasms , Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/prevention & control , Early Detection of Cancer/methods , Cross-Sectional Studies , Bayes Theorem , Africa South of the Sahara/epidemiology , HIV Infections/diagnosis , HIV Infections/epidemiology
6.
PLoS Med ; 18(3): e1003528, 2021 03.
Article in English | MEDLINE | ID: mdl-33661957

ABSTRACT

BACKGROUND: Cervical cancer screening strategies using visual inspection or cytology may have suboptimal diagnostic accuracy for detection of precancer in women living with HIV (WLHIV). The optimal screen and screen-triage strategy, age to initiate, and frequency of screening for WLHIV remain unclear. This study evaluated the sensitivity, specificity, and positive predictive value of different cervical cancer strategies in WLHIV in Africa. METHODS AND FINDINGS: WLHIV aged 25-50 years attending HIV treatment centres in Burkina Faso (BF) and South Africa (SA) from 5 December 2011 to 30 October 2012 were enrolled in a prospective evaluation study of visual inspection using acetic acid (VIA) or visual inspection using Lugol's iodine (VILI), high-risk human papillomavirus DNA test (Hybrid Capture 2 [HC2] or careHPV), and cytology for histology-verified high-grade cervical intraepithelial neoplasia (CIN2+/CIN3+) at baseline and endline, a median 16 months later. Among 1,238 women (BF: 615; SA: 623), median age was 36 and 34 years (p < 0.001), 28.6% and 49.6% ever had prior cervical cancer screening (p < 0.001), and 69.9% and 64.2% were taking ART at enrolment (p = 0.045) in BF and SA, respectively. CIN2+ prevalence was 5.8% and 22.4% in BF and SA (p < 0.001), respectively. VIA had low sensitivity for CIN2+ (44.7%, 95% confidence interval [CI] 36.9%-52.7%) and CIN3+ (56.1%, 95% CI 43.3%-68.3%) in both countries, with specificity for ≤CIN1 of 78.7% (95% CI 76.0%-81.3%). HC2 had sensitivity of 88.8% (95% CI 82.9%-93.2%) for CIN2+ and 86.4% (95% CI 75.7%-93.6%) for CIN3+. Specificity for ≤CIN1 was 55.4% (95% CI 52.2%-58.6%), and screen positivity was 51.3%. Specificity was higher with a restricted genotype (HPV16/18/31/33/35/45/52/58) approach (73.5%, 95% CI 70.6%-76.2%), with lower screen positivity (33.7%), although there was lower sensitivity for CIN3+ (77.3%, 95% CI 65.3%-86.7%). In BF, HC2 was more sensitive for CIN2+/CIN3+ compared to VIA/VILI (relative sensitivity for CIN2+ = 1.72, 95% CI 1.28-2.32; CIN3+: 1.18, 95% CI 0.94-1.49). Triage of HC2-positive women with VIA/VILI reduced the number of colposcopy referrals, but with loss in sensitivity for CIN2+ (58.1%) but not for CIN3+ (84.6%). In SA, cytology high-grade squamous intraepithelial lesion or greater (HSIL+) had best combination of sensitivity (CIN2+: 70.1%, 95% CI 61.3%-77.9%; CIN3+: 80.8%, 95% CI 67.5%-90.4%) and specificity (81.6%, 95% CI 77.6%-85.1%). HC2 had similar sensitivity for CIN3+ (83.0%, 95% CI 70.2%-91.9%) but lower specificity compared to HSIL+ (42.7%, 95% CI 38.4%-47.1%; relative specificity = 0.57, 95% CI 0.52-0.63), resulting in almost twice as many referrals. Compared to HC2, triage of HC2-positive women with HSIL+ resulted in a 40% reduction in colposcopy referrals but was associated with some loss in sensitivity. CIN2+ incidence over a median 16 months was highest among VIA baseline screen-negative women (2.2%, 95% CI 1.3%-3.7%) and women who were baseline double-negative with HC2 and VIA (2.1%, 95% CI 1.3%-3.5%) and lowest among HC2 baseline screen-negative women (0.5%, 95% CI 0.1%-1.8%). Limitations of our study are that WLHIV included in the study may not reflect a contemporary cohort of WLHIV initiating ART in the universal ART era and that we did not evaluate HPV tests available in study settings today. CONCLUSIONS: In this cohort study among WLHIV in Africa, a human papillomavirus (HPV) test targeting 14 high-risk (HR) types had higher sensitivity to detect CIN2+ compared to visual inspection but had low specificity, although a restricted genotype approach targeting 8 HR types decreased the number of unnecessary colposcopy referrals. Cytology HSIL+ had optimal performance for CIN2+/CIN3+ detection in SA. Triage of HPV-positive women with HSIL+ maintained high specificity but with some loss in sensitivity compared to HC2 alone.


Subject(s)
Early Detection of Cancer/statistics & numerical data , HIV Infections/virology , Triage/statistics & numerical data , Uterine Cervical Neoplasms/diagnosis , Adult , Burkina Faso/epidemiology , Cohort Studies , Data Accuracy , Female , Humans , Incidence , Middle Aged , Prevalence , South Africa/epidemiology , Uterine Cervical Neoplasms/epidemiology
7.
Matern Child Nutr ; 17(2): e13106, 2021 04.
Article in English | MEDLINE | ID: mdl-33236840

ABSTRACT

This study in Burkina Faso investigated whether offspring of young mothers who had received weekly periconceptional iron supplementation in a randomised controlled trial were at increased risk of malaria. A child safety survey was undertaken in the peak month of malaria transmission towards the end of the trial to assess child iron biomarkers, nutritional status, anaemia and malaria outcomes. Antenatal iron biomarkers, preterm birth, fetal growth restriction and placental pathology for malaria and chorioamnionitis were assessed. Data were available for 180 babies surviving to the time of the survey when their median age was 9 months. Prevalence of maternal iron deficiency in the last trimester based on low body iron stores was 16%. Prevalence of active placental malaria infection was 24.8%, past infection 59% and chorioamnionitis 55.6%. Babies of iron supplemented women had lower median gestational age. Four out of five children ≥ 6 months were iron deficient, and 98% were anaemic. At 4 months malaria prevalence was 45%. Child iron biomarkers, anaemia and malaria outcomes did not differ by trial arm. Factors associated with childhood parasitaemia were third trimester C-reactive protein level (OR 2.1; 95% CI 1.1-3.9), active placental malaria (OR 5.8; 1.0-32.5, P = 0.042) and child body iron stores (OR 1.13; 1.04-1.23, P = 0.002). Chorioamnionitis was associated with reduced risk of child parasitaemia (OR 0.4; 0.1-1.0, P = 0.038). Periconceptional iron supplementation of young women did not alter body iron stores of their children. Higher child body iron stores and placental malaria increased risk of childhood parasitaemia.


Subject(s)
Malaria , Premature Birth , Burkina Faso , Child , Child, Preschool , Dietary Supplements , Female , Folic Acid , Humans , Infant , Infant, Newborn , Iron , Malaria/epidemiology , Malaria/prevention & control , Placenta , Pregnancy
8.
Bull Cancer ; 106(11): 1057-1063, 2019 Nov.
Article in French | MEDLINE | ID: mdl-31542167

ABSTRACT

INTRODUCTION: Vulvar cancer is rare and belatedly diagnosed in Africa. We describe its diagnostic stages, therapeutic and evolution features in a country with limited resources. METHODOLOGY: Forty-seven cases of vulvar cancer diagnosed between 2013 and 2018 in Burkina Faso, were analyzed retrospectively. The diagnostic stages, therapeutic and evolution terms were considered. Survival was calculated through the Kaplan Meier Method and compared using the Logrank technique. RESULTS: Stages IA and IB accounted for 10.6%. Radiotherapy was not available and chemotherapy was done in 9 cases. Full vulvectomy with bilateral inguino-femoral dissection was performed in 11 cases. Average survival was 41 months with a median of 52 months. The difference in survival according to the diagnostic stages were highly significant statistically (P=0.000). DISCUSSION: Cancer of the vulva is rare and raises major therapeutic difficulties in countries with limited resources. Surgery is the only affordable weapon. Evolution would be better if radiochemotherapy was possible. CONCLUSION: Radiochemotherapy cannot be done due to the lack of a radiotherapy unit and the high cost of cytotoxics. Surgery is largely palliative and/or mutilating. Survival is modest. An early diagnosis could help promote conserving treatments.


Subject(s)
Vulvar Neoplasms , Adult , Aged , Antineoplastic Agents/therapeutic use , Burkina Faso/epidemiology , Developing Countries , Female , Humans , Kaplan-Meier Estimate , Lymph Node Excision/methods , Middle Aged , Radiotherapy , Retrospective Studies , Vulva/surgery , Vulvar Neoplasms/mortality , Vulvar Neoplasms/pathology , Vulvar Neoplasms/therapy
9.
Biomol Concepts ; 10(1): 120-127, 2019 Jun 11.
Article in English | MEDLINE | ID: mdl-31203256

ABSTRACT

Breast cancer is the top cause of cancer mortality among women in the world and the second in Africa. The aims of this study were to: i) identify women with breast nodules suspected of having breast cancer ii) sequence the BRCA1 and BRCA2 genes and iii) screen mutations. From 2015 to 2016, 112 women aged from 35 to 44 years, who had come for consultation in the gynecology/obstetrics and the oncology department of the University Hospital Yalgado Ouedraogo, voluntarily agreed to participate to this study. Whole blood was collected from those with mammary nodules. The genomic DNA was extracted using Qiagen kit. FAST KAPA was used for genomic DNA amplification and the purified PCR products were analyzed by direct sequencing using Big Dye v1.1 and ABI 3730 automated sequencer. Nucleotides substitutions were determined. We identified BRCA1 SNPs rs1799966, rs799917, rs16942, rs16941, rs2227945, and BRCA2 SNPs rs169547, rs4986860. These identified variants are found mostly in cases of benign tumors of breast or ovarian cancer with familial history of breast cancer. This study in Burkina-Faso, is the basis for improved and more specific genetic testing, and suggests that additional genes contributing to an increased risk of breast cancer should be analyzed.


Subject(s)
BRCA1 Protein/genetics , BRCA2 Protein/genetics , Breast Neoplasms/genetics , Mutation, Missense , Adult , Breast Neoplasms/pathology , Burkina Faso , Female , Genetic Testing/standards , Humans , Mammary Glands, Human/pathology , Polymorphism, Single Nucleotide
10.
Int J Surg Case Rep ; 60: 120-122, 2019.
Article in English | MEDLINE | ID: mdl-31220678

ABSTRACT

INTRODUCTION: Paraganglioma of the ZUCKERKANDL organ are rare. Diagnosis is based on clinical, radiological and biological arguments. We report a case to describe our surgical procedure and insist on the necessity of preoperative diagnosis. PRESENTATION OF CASE: BA, 52-years-old male patient was seen in consultation for left hypochondrium pains. The clinical examination had revealed a painful tumefaction in the left flank and the left hypochondrium. A deep mass was observed, but was difficult to be assessed, due to pain. Abdominal-pelvic CT scan with contrast injection had revealed a tissue mass, suggesting a tumor of the tail of the pancreas. Laparotomy showed this mass was not attached to the tail of the pancreas, and was along the abdominal aorta up to the aortic bifurcation. Upon touching the mass, blood pressure raised up to 240 mmHg. A least mobilization of the mass and the use of nicardipine helped maintain blood pressure below 180mmhg. Dissection was carried out from the aortic bifurcation to the TREITZ's angle and the mass was removed. The follow-ups were characterized by low blood pressure a few minutes following the resection of the mass. DISCUSSION: Pheochromocytoma is rare. The Clinical signs, Abdominal-pelvic CT scan and biology are the steps of the preoperative diagnosis. The surgery consists a lumpectomy. The resuscitation determines the patient's prognosis. CONCLUSION: Pheochromocytoma is an unusual mass. Preoperative diagnosis can be difficult in pauci-symptomatic cases. One should consider this in the face of any abdominal mass, so as to improve planning of resuscitation which determines the patient's prognosis.

11.
Int J Surg Case Rep ; 58: 190-192, 2019.
Article in English | MEDLINE | ID: mdl-31060021

ABSTRACT

INTRODUCTION: Abdominal masses are common in digestive surgery and gastro-enterology units. However, meso-intestinal lipomas remain rare and lipoma of the left colon uncommon. We report a case of giant lipoma of the left mesocolon whose diagnosis was highly guided by radiological examinations. PRESENTATION OF CASE: A female patient aged 56, consulted for left subcostal abdominal pains. The clinical examination showed an abdominal mass occupying the left hemiabdomen. The abdominal-pelvic CT scan highlighted a large abdominal-pelvic mass in the left abdomen. Abdominal-pelvic MRI revealed a large fatty mass spreading from the front subphrenic space up to the level of the left iliac fossa, non-suspected and compatible with lipoma. FDG-Pet Scan had not revealed pathological fixing. The mass appeared like a total gap space. Exploratory surgery revealed a lipoma mass in the left mesocolon. Hemicolectomy was performed taking away the mass. Histology confirmed the diagnosis of lipoma and the outcome was favourable. DISCUSSION: Our case represents the fourth case of mesocolon lipoma described in the literature. Imaging, especially TDM and MRI are an important step of the preoperative diagnosis. The surgery consists of either a lumpectomy or a colectomy. CONCLUSION: Lipoma of the left mesocolon is exceptional. Radiological examinations provide most arguments to suggest lipoma. However the organ's diagnosis is provided by surgical exploration and the certainty diagnosis by pathological examination. Treatment is surgical.

12.
Malar J ; 18(1): 161, 2019 May 06.
Article in English | MEDLINE | ID: mdl-31060615

ABSTRACT

BACKGROUND: Iron supplementation before a first pregnancy may improve the future health of mother and baby by reducing maternal anaemia. Iron supplementation could, however, increase malaria infections, notably in primigravidae who are most susceptible. The pathogenicity of other iron-utilizing pathogens could also increase, causing inflammation leading to increased risk of adverse birth outcomes. This paper reports pre-specified secondary birth outcomes from a safety trial in Burkina Faso in an area of high malaria endemicity. Primary outcomes from that trial had investigated effects of long-term weekly iron supplementation on malaria and genital tract infections in non-pregnant and pregnant women. METHODS: A double-blind, randomized controlled trial. Nulliparous, mainly adolescent women, were individually randomized periconceptionally to receive weekly either 60 mg elemental iron and 2.8 mg folic acid, or 2.8 mg folic acid alone, continuing up to the first antenatal visit for those becoming pregnant. Secondary outcomes were ultrasound-dated gestational age, fetal growth, placental malaria, chorioamnionitis and iron biomarkers. Seasonal effects were assessed. Analysis was by intention to treat. RESULTS: 478 pregnancies occurred to 1959 women: 258/980 women assigned iron and folic acid and 220/979 women assigned folic acid alone. Malaria prevalence at the first antenatal visit was 53% (iron) and 55% (controls). Mean birthweight was 111 g lower in the iron group (95% CI 9:213 g, P = 0.033). Mean gestational ages were 264 days (iron) and 269 days (controls) (P = 0.012), with 27.5% under 37 weeks compared to 13.9% in controls (adjRR = 2.22; 95% CI 1.39-3.61) P < 0.001). One-third of babies were growth restricted, but incidence did not differ by trial arm. Half of placentae had evidence of past malaria infection. C-reactive protein > 5 mg/l was more common prior to births < 37 weeks (adjRR = 2.06, 95% CI 1.04-4.10, P = 0.034). Preterm birth incidence during the rainy season was ~ 50% in the iron arm and < 20% in controls (P = 0.001). Chorioamnionitis prevalence peaked in the dry season (P = 0.046), with no difference by trial arm (P = 0.14). CONCLUSION: Long-term weekly iron supplementation given to nulliparous women in a malaria endemic area was associated with higher risk of preterm birth in their first pregnancy. Trial Registration NCT01210040. Registered with Clinicaltrials.gov on 27th September 2010.


Subject(s)
Dietary Supplements/adverse effects , Iron/administration & dosage , Malaria/epidemiology , Maternal Nutritional Physiological Phenomena , Premature Birth/etiology , Adolescent , Birth Weight/drug effects , Burkina Faso/epidemiology , Double-Blind Method , Endemic Diseases , Female , Folic Acid/administration & dosage , Gestational Age , Humans , Infant, Newborn , Iron/adverse effects , Malaria/complications , Micronutrients/administration & dosage , Micronutrients/adverse effects , Pregnancy , Premature Birth/epidemiology , Prevalence , Risk Factors , Young Adult
13.
J Clin Virol ; 99-100: 79-83, 2018.
Article in English | MEDLINE | ID: mdl-29353074

ABSTRACT

BACKGROUND: African women living with HIV (WLHIV) are at high risk of cervical cancer but rarely adequately screened. Better strategies enabling identification of WLHIV with high-grade cervical intraepithelial lesions (CIN2+) are required. OBJECTIVES: To investigate the diagnostic value of HPV16 and HPV18 viral loads in a cohort of African WLHIV. DESIGN: HPV16 and HPV18 viral loads were determined by quantitation of the E6 gene DNA by real-time PCR in cervical specimens collected at baseline and endline (16 months) from 245 African WLHIV positive for HPV16 or/and HPV18. Cervical biopsies were graded using the histopathological CIN classification. RESULTS: Women with CIN2+ had higher viral load for HPV16 (p < 0.0001) or HPV18 (p = 0.03) than those without CIN2+. HPV16 viral load ≥3.59 log copies/1000 cells detected CIN2+ with sensitivity and specificity of 93.5% (95%CI: 81.7-98.3%) and 74.1% (95%CI: 66.3-80.6%), respectively, whereas HPV18 viral load ≥1.63 log copies/1000 cells detected CIN2+ with sensitivity and specificity of 59.1% (95%CI: 38.7-76.7%) and 66.9% (95%CI: 58.8-74.1%), respectively. A high baseline HPV16 viral load was significantly associated with persistence of, or progression to CIN2+ at endline; these findings were not observed for HPV18. CONCLUSIONS: HPV16 viral load is a powerful marker of CIN2+ in African WLHIV. HPV18 viral load is of lower diagnostic value in this population.


Subject(s)
HIV Infections/complications , Human papillomavirus 16/isolation & purification , Human papillomavirus 18/isolation & purification , Papillomavirus Infections/diagnosis , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Neoplasms/diagnosis , Viral Load , Adolescent , Adult , Africa South of the Sahara , Cervix Uteri/pathology , Cervix Uteri/virology , Coinfection/diagnosis , Coinfection/pathology , Female , Humans , Middle Aged , Papillomavirus Infections/pathology , Prospective Studies , Real-Time Polymerase Chain Reaction , Sensitivity and Specificity , Uterine Cervical Neoplasms/pathology , Viral Envelope Proteins/analysis , Viral Envelope Proteins/genetics , Young Adult , Uterine Cervical Dysplasia/pathology
14.
J Clin Pathol ; 71(1): 40-45, 2018 Jan.
Article in English | MEDLINE | ID: mdl-28600294

ABSTRACT

AIMS: To analyse the effect of the expert end-point committee (EPC) review on histological endpoint classification of cervical intraepithelial neoplasia (CIN). METHODS: A cohort of women living with HIV were recruited in Burkina Faso (BF) and South Africa (SA) and followed over 18 months. Four-quadrant cervical biopsies were obtained in women with abnormalities detected by at least one screening test. A central review by a panel of five pathologists was organised at baseline and at endline. RESULTS: At baseline the prevalence of high-grade CIN (CIN2+) was 5.1% (28/554) in BF and 23.3% (134/574) in SA by local diagnosis, and 5.8% (32/554) in BF and 22.5% (129/574) in SA by the EPC. At endline the prevalence of CIN2+ was 2.3% (11/483) in BF and 9.4% (47/501) in SA by local diagnosis, and 1.4% (7/483) in BF and 10.2% (51/501) in SA by EPC. The prevalence of borderline CIN1/2 cases was 2.8% (32/1128) and 0.8% (8/984) at baseline and endline. Overall agreement between local diagnosis and final diagnosis for distinguishing CIN2+ from ≤CIN1 was 91.2% (κ=0.82) and 88.9% (κ=0.71) for BF at baseline and endline, and 92.7% (κ=0.79) and 98.7% (κ=0.97) for SA at baseline and endline. Among the CIN1/2 cases, 12 (37.5%) were graded up to CIN2 and 20 (62.5%) were graded down to CIN1 at baseline, and 3 (37.5%) were graded up to CIN2 and 5 (62.5%) were graded down to CIN1 at endline. CONCLUSIONS: This study highlights the importance of a centralised rigorous re-reading with exchange of experiences among pathologists from different settings.


Subject(s)
HIV Infections/complications , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Neoplasms/diagnosis , Adult , Biopsy , Burkina Faso , Carrier Proteins/therapeutic use , Cervix Uteri/pathology , Cohort Studies , Cytokines/therapeutic use , Endpoint Determination , Female , HIV Infections/drug therapy , Humans , Middle Aged , Pathologists , South Africa , Uterine Cervical Neoplasms/complications , Uterine Cervical Neoplasms/drug therapy , Uterine Cervical Dysplasia/complications , Uterine Cervical Dysplasia/drug therapy
15.
PLoS One ; 12(3): e0174117, 2017.
Article in English | MEDLINE | ID: mdl-28333966

ABSTRACT

OBJECTIVE: To describe associations of high-risk human papillomavirus (HR-HPV) with high-grade cervical intraepithelial neoplasia (CIN2+) in women living with HIV (WLHIV) in Burkina Faso (BF) and South Africa (SA). METHODS: Prospective cohort of WLHIV attending HIV outpatient clinics and treatment centres. Recruitment was stratified by ART status. Cervical HPV genotyping using INNO-LiPA and histological assessment of 4-quadrant cervical biopsies at enrolment and 16 months later. RESULTS: Among women with CIN2+ at baseline, the prevalence of any HR-HPV genotypes included in the bi/quadrivalent (HPV16/18) or nonavalent (HPV16/18/31/35/45/52/58) HPV vaccines ranged from 37% to 90%. HPV58 was most strongly associated with CIN2+ (aOR = 5.40, 95%CI: 2.77-10.53). At 16-months follow-up, persistence of any HR-HPV was strongly associated with incident CIN2+ (aOR = 7.90, 95%CI: 3.11-20.07), as was persistence of HPV16/18 (aOR = 5.25, 95%CI: 2.14-12.91) and the additional HR types in the nonavalent vaccine (aOR = 3.23, 95%CI: 1.23-8.54). CONCLUSION: HR-HPV persistence is very common among African WLHIV and is linked to incident CIN2+. HPV vaccines could prevent between 37-90% of CIN2+ among African WLHIV.


Subject(s)
HIV Infections/complications , Papillomaviridae/genetics , Papillomavirus Infections/complications , Uterine Cervical Neoplasms/epidemiology , Adult , Biopsy , Burkina Faso/epidemiology , Cervix Uteri/pathology , Cervix Uteri/virology , Female , Genotype , HIV Infections/epidemiology , Humans , Papillomavirus Infections/virology , Papillomavirus Vaccines/therapeutic use , Prevalence , Prospective Studies , South Africa/epidemiology , Uterine Cervical Neoplasms/etiology , Uterine Cervical Neoplasms/pathology
16.
AIDS ; 31(2): 273-285, 2017 01 14.
Article in English | MEDLINE | ID: mdl-27755107

ABSTRACT

OBJECTIVE: To describe the effect of antiretroviral therapy (ART) and HIV-related factors on high-risk human papillomavirus (HR-HPV) and high-grade cervical intraepithelial neoplasia lesions (CIN2+) among women living with HIV/AIDS (WLHA) in sub-Saharan Africa. DESIGN: Prospective cohort of WLHA in Ouagadougou, Burkina Faso (BF) and Johannesburg, South Africa (SA). Recruitment was stratified by ART status. METHODS: At baseline and endline (median 16 months), cervical samples, and biopsies were analyzed for HPV genotyping (InnoLiPA) and by histology. Logistic regression was used to estimate associations of ART and HIV-related factors with HR-HPV and CIN2+ outcomes, and all results presented are adjusted for baseline CD4 cell count. RESULTS: Among 1238 enrolled WLHA (BF = 615; SA = 623), HR-HPV prevalence was 59.1% in BF and 79.1% in SA. CIN2+ prevalence was 5.8% in BF and 22.5% in SA. Compared with long-duration ART users (>2 years), HR-HPV prevalence was higher among short-duration ART users [≤2 years; adjusted prevalence ratio (aPR) = 1.24, 95% confidence interval (CI) 1.04-1.47] in BF, and CIN2+ prevalence was higher among short-duration ART users [adjusted odds ratio (aOR) = 1.99, 95% CI 1.12-3.54) and ART-naive participants (aOR = 1.87, 95% CI 1.11-3.17) in SA. Among 963 (77.8%) women seen at endline, HR-HPV persistence was 41.1% in BF and 30.2% in SA; CIN2+ incidence over 16-months was 1.2% in BF and 5.8% in SA. HR-HPV persistence was associated with being ART-naive in BF (aPR = 1.89, 95% CI 1.26-2.83), and with short-duration ART use (aPR = 1.78, 95% CI 1.11-2.86) and HIV-1 plasma viral load at least 1000 copies/ml (aPR = 2.87, 95% CI 1.63-5.05) in SA. CIN2+ incidence was reduced among women on ART in SA (aOR = 0.39, 95% CI 0.15-1.01). CONCLUSION: Prolonged and effective ART is important in controlling HR-HPV and the development of CIN2+.


Subject(s)
Anti-Retroviral Agents/therapeutic use , HIV Infections/complications , HIV Infections/drug therapy , Papillomavirus Infections/epidemiology , Uterine Cervical Dysplasia/epidemiology , Adult , Biopsy , Burkina Faso/epidemiology , CD4 Lymphocyte Count , Female , Genotype , Humans , Papillomaviridae/classification , Papillomaviridae/genetics , Papillomaviridae/isolation & purification , Papillomavirus Infections/complications , Prevalence , Prospective Studies , Risk Assessment , South Africa/epidemiology , Vaginal Smears , Young Adult
17.
Br J Cancer ; 115(4): 425-30, 2016 08 09.
Article in English | MEDLINE | ID: mdl-27434037

ABSTRACT

BACKGROUND: The careHPV assay is a test for high-risk (HR) human papillomaviruses (HPV) detection designed to be affordable in resource-poor settings. We evaluated the performance of careHPV screening among 1052 women living with HIV/AIDS included in the HARP (HPV in Africa Research Partnership) study in Burkina Faso (BF) and South Africa (SA). METHODS: Cervical samples were tested for HR-HPV by the careHPV and the INNO-LiPA HPV genotyping Extra assays. All women had Pap smear testing, visual inspection with acetic acid/Lugol's iodine (VIA/VILI) and colposcopy. Cervical biopsies were obtained for participants who were HR-HPV DNA positive by careHPV or who had abnormalities detected on cytology, VIA/VILI or colposcopy. RESULTS: Overall, 45.1% of women had a positive careHPV test (46.5% in BF, 43.8% in SA). The careHPV positivity rate increased with the grade of cytological lesions. Sensitivity and specificity of careHPV for the diagnosis of CIN2+ (n=60, both countries combined) were 93.3% (95% confidence interval (CI): 83.8-98.2) and 57.9% (95% CI: 54.5-61.2), respectively. Specificity increased with CD4 count. careHPV had a similar clinical sensitivity but higher specificity than the INNO-LiPA assay for detection of CIN2+. CONCLUSIONS: Our results suggest that careHPV testing is a reliable tool for cervical cancer screening in HIV-1-infected women in sub-Saharan Africa.


Subject(s)
Papillomavirus Infections/diagnosis , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Neoplasms/diagnosis , Acetic Acid , Adult , Biopsy , Burkina Faso , Colposcopy , DNA, Viral/analysis , Early Detection of Cancer , Female , Genotype , HIV Infections/complications , HIV-1 , Humans , Iodides , Middle Aged , Papanicolaou Test , Papillomavirus Infections/complications , Papillomavirus Infections/virology , Prospective Studies , Sensitivity and Specificity , South Africa , Uterine Cervical Neoplasms/complications , Uterine Cervical Neoplasms/virology , Vaginal Smears , Uterine Cervical Dysplasia/complications , Uterine Cervical Dysplasia/virology
18.
J Acquir Immune Defic Syndr ; 68(2): 162-8, 2015 Feb 01.
Article in English | MEDLINE | ID: mdl-25394189

ABSTRACT

OBJECTIVES: To compare the Hybrid Capture 2 human papillomaviruses (HPV) DNA assay (HC2) and the INNO-LiPA HPV Genotyping Extra assay (INNO-LiPA) for cervical cancer screening in HIV-1-infected African women. DESIGN: The tests were compared for agreement in detecting high-risk HPV (hr-HPV) and performance to detect squamous intraepithelial lesions (SIL), by cytology, and cervical intraepithelial neoplasia, by histology, in cervical samples from 1224 women in Burkina Faso (N = 604) and South Africa (N = 620). RESULTS: When considering the 13 hr-HPV types detected by HC2, 634 (51.8%) and 849 (69.4%) samples were positive by HC2 and INNO-LiPA, respectively. Agreement between assays was 73.9% [adjusted kappa coefficient value, 0.44 (95% confidence interval: 0.43 to 0.53)]. Agreement improved with analysis restricted to women with high-grade cervical lesions [adjusted kappa coefficient value, 0.83 (95% confidence interval: 0.74 to 0.91)]. The prevalence of hr-HPV, as determined by HC2 and INNO-LiPA, was 34.5% and 54.5%, respectively, in samples with normal cytology, 48.0% and 68.0%, respectively, in samples with atypical squamous cells of undetermined significance, 51.8% and 75.2%, respectively, in samples with low-grade SIL, and 86.3% and 89.8%, respectively, in samples with high-grade SIL/atypical squamous cells that cannot exclude HSIL. Sensitivity, specificity, positive, and negative predictive values for the diagnosis of histological high-grade lesions (CIN2+) were 88.8%, 55.2%, 24.7% and 96.7%, and 92.5%, 35.1%, 19.1% and 96.6% for HC2 and INNO-LiPA, respectively. CONCLUSIONS: HC2 has lower analytical sensitivity but higher specificity than INNO-LiPA for diagnosing high-grade lesions; the 2 tests presented a comparable clinical sensitivity. HC2 might be suitable for cervical cancer screening in HIV-1-infected African women, but its use in resource-limited settings merits to be further evaluated in comparison with other prevention strategies.


Subject(s)
Early Detection of Cancer/methods , Genotyping Techniques/methods , HIV Infections/complications , Papillomaviridae/isolation & purification , Papillomavirus Infections/diagnosis , Uterine Cervical Neoplasms/diagnosis , Adult , Burkina Faso , Female , Genotype , Humans , Middle Aged , Papillomaviridae/classification , Papillomaviridae/genetics , Papillomavirus Infections/virology , Sensitivity and Specificity , South Africa , Uterine Cervical Neoplasms/virology
19.
Australas J Dermatol ; 48(1): 32-4, 2007 Feb.
Article in English | MEDLINE | ID: mdl-17222299

ABSTRACT

A 36-year-old HIV1-positive woman presented with a 6-month history of a progressive papular and nodular eruption of the face and subsequent extensive spread to the rest of the skin. The diagnosis of diffuse cutaneous leishmaniasis was established by direct examination and skin biopsy. This atypical form had a dramatic improvement after a 21-day treatment with meglumine antimoniate. This clinical form may be confused with other endemic diseases in western Africa, especially leprosy.


Subject(s)
Facial Dermatoses/diagnosis , HIV Infections , Leishmaniasis, Diffuse Cutaneous/diagnosis , Africa, Western , Antiprotozoal Agents/administration & dosage , Antiprotozoal Agents/therapeutic use , Diagnosis, Differential , Facial Dermatoses/drug therapy , Facial Dermatoses/pathology , Female , Humans , Injections, Intramuscular , Leishmaniasis, Diffuse Cutaneous/drug therapy , Leishmaniasis, Diffuse Cutaneous/pathology , Meglumine/administration & dosage , Meglumine/therapeutic use , Meglumine Antimoniate , Middle Aged , Organometallic Compounds/administration & dosage , Organometallic Compounds/therapeutic use
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