Benjamin Longo-Mbenza

Prof. Benjamin Longo-Mbenza


Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2012 in International Journal of General Medicine
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BLBenjamin Longo-Mbenza
Benjamin Longo-Mbenza
RWRoger Wumba
Roger Wumba
JMJean Menotti
Jean Menotti
MMMadone Mandina
Madone Mandina
FKFabien Kintoki
Fabien Kintoki
MTMarc THELLIER
Marc THELLIER
Background: The objective of this study was to determine the prevalence of intestinal parasites, with special emphasis on microsporidia and Cryptosporidium, as well as their association with human immunodeficiency virus (HIV) symptoms, risk factors, and other digestive parasites. We also wish to determine the molecular biology definitions of the species and genotypes of microsporidia and Cryptosporidium in HIV patients. Methods: In this cross-sectional study, carried out in Kinshasa, Democratic Republic of the Congo, stool samples were collected from 242 HIV patients (87 men and 155 women) with referred symptoms and risk factors for opportunistic intestinal parasites. The analysis of feces specimen were performed using Ziehl–Neelsen stainings, real-time polymerase chain reaction (PCR), immunofluorescence indirect monoclonal antibody, nested PCR-restriction fragment length polymorphism, and PCR amplification and sequencing. Odds ratio (OR) and 95% confidence intervals were used to quantify the risk. Results: Of the 242 HIV patients, 7.8%, 0.4%, 5.4%, 0.4%, 2%, 10.6%, and 2.8% had Enterocytozoon bieneusi, Encephalitozoon intestinalis, Cryptosporidium spp., Isospora belli, pathogenic intestinal protozoa, nonpathogenic intestinal protozoa, and helminths, respectively. We found five genotypes of E. bieneusi: two older, NIA1 and D, and three new, KIN1, KIN2, and KIN3. Only 0.4% and 1.6% had Cryptosporidium parvum and Cryptosporidium hominis, respectively. Of the patients, 36.4%, 34.3%, 31%, and 39% had asthenia, diarrhea, a CD4 count of <100 cells/mm³, and no antiretroviral therapy (ART), respectively. The majority of those with opportunistic intestinal parasites and C. hominis, and all with C. parvum and new E. bieneusi genotypes, had diarrhea, low CD4+ counts of <100 cells/mm³, and no ART. There was a significant association between Entamoeba coli, Kaposi sarcoma, herpes zoster, chronic diarrhea, and asthenia, and the presence of 28 cases with opportunistic intestinal parasites. Rural areas, public toilets, and exposure to farm pigs were the univariate risk factors present in the 28 cases with opportunistic intestinal parasites. In logistic regression analysis, a CD4 count of <100 cells/mm³ (OR = 4.60; 95% CI 1.70–12.20; P = 0.002), no ART (OR = 5.00; 95% CI 1.90–13.20; P < 0.001), and exposure to surface water (OR = 2.90; 95% CI 1.01–8.40; P = 0.048) were identified as the significant and independent determinants for the presence of opportunistic intestinal parasites. Conclusion: E. bieneusi and Cryptosporidium are becoming more prevalent in Kinshasa, Congo. Based on the findings, we recommend epidemiology surveillance and prevention by means of hygiene, the emphasis of sensitive PCR methods, and treating opportunistic intestinal parasites that may be acquired through fecal–oral transmission, surface water, normal immunity, rural area-based person–person and animal–human infection, and transmission of HIV. Therapy, including ART and treatment with fumagillin, is needed.

27 March 2015 in BMC Public Health
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OAOLADELE ADENIYI
OLADELE ADENIYI
BLBenjamin Longo-Mbenza
Benjamin Longo-Mbenza
DGDaniel Goon
Daniel Goon
Countries in Sub-Saharan Africa have recently been experiencing increases in the prevalence of obesity, type 2 diabetes mellitus (T2DM) and other non-communicable diseases in both urban and rural areas. Despite their growing influence on population health in the region, there is a paucity of epidemiological studies on the twin epidemic of obesity and T2DM, particularly in the rural communities in South Africa. We investigated the prevalence and the determinants of overall obesity among patients with T2DM in rural and semi-urban areas surrounding the town of Mthatha, South Africa. This hospital-based cross-sectional study was conducted among patients with T2DM attending the outpatient department at Mthatha General Hospital, Eastern Cape Province, South Africa. Data were obtained from 327 participants using standardized questionnaires that included items on sex, age, level of education, type of residence, employment status, smoking status, physical activity, diet and alcohol intake. After taking measurements of height and weight, participants were defined as obese if their body mass index exceeded 30 kg/m2. Univariate and multivariate logistic regression analyses were performed to identify the determinants of obesity in our sample population. We found that 60.2% of our sample population were defined as obese. In our univariate analyses, female sex (p < 0.001), age ≥50 years (p = 0.023), rural residence (p < 0.001), excessive alcohol intake (p = 0.002), current cigarette smoking (p < 0.001), level of education (p < 0.001), regular consumption of soft drinks (p < 0.001) and unemployment (p = 0.043) were found to be positively and significantly associated with obesity. In the multivariate logistic regression analysis, female sex (p < 0.001), unemployment (p = 0.012) and level of education (p < 0.001) were found to be independent determinants of obesity. We found that female sex, educational attainment, unemployment and current cigarette smoking were positively associated with obesity among the study participants. Lifestyle changes, poverty reduction and public education are urgently needed to address the growing obesity epidemic in rural areas of South Africa.

30 January 2018 in African Journal of Primary Health Care & Family Medicine
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RKRamprakash Kaswa
Ramprakash Kaswa
GRGeorge F.D. Rupesinghe
George F.D. Rupesinghe
BLBenjamin Longo-Mbenza
Benjamin Longo-Mbenza
Background: Antenatal care (ANC) services are the gateway for integrated management of several conditions that adversely affect the mother and foetus. More stillbirths than neonatal deaths in South Africa are a reflection of poor quality ANC services. Aim: The primary aim of this study was to explore the reasons for late booking, and also to determine pregnant women’s knowledge, perceptions and attitude towards antenatal care services they receive in Mthatha area in Eastern Cape, South Africa. Setting: This was a qualitative study, conducted at Mbekweni Health Centre in the King Sabata Dalindyebo (KSD) subdistrict municipality of the Eastern Cape Province. Methods: This qualitative study consisted of selected pregnant women who presented after 19 weeks of gestation at Mbekweni Health Centre. Data were collected through two different methods, namely, semi-structured interviews and focus group discussions were used until saturation of the themes were reached. The interviews were transcribed verbatim and thematic analyses were undertaken. Results: Twenty women participated in the study. They were diverse in terms of age 18–41 years, gravidity 1–6 and time of ANC booking 20–28 weeks. The interviews identified a variety of personal, service and organisational reasons for late ANC booking. The themes identified for late ANC bookings were: health care system related issues, socio-economic factors, women’s perceptions and knowledge, and failure of family planning services. Conclusions: Women’s beliefs, knowledge and perceptions regarding antenatal services outweigh the perceived benefit of early ANC visit. The majority of women had lack of knowledge of contraception, early signs of pregnancy, purpose, timing and benefits of ANC visit.

23 May 2011 in ISRN Cardiology
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BLBenjamin Longo-Mbenza
Benjamin Longo-Mbenza
MMMurielle Longokolo Mashi
Murielle Longokolo Mashi
MTMichel Lelo Tshikwela
Michel Lelo Tshikwela
EMEtienne Mokondjimobe
Etienne Mokondjimobe
TGThierry Gombet
Thierry Gombet
SFSimon Mbungu Fuele
Simon Mbungu Fuele
Background and Purpose. It now appears clear that both HIV/AIDS and antiretroviral therapy (HAART) use are associated with higher risk of cardiovascular disease such as stroke. In this study, we evaluated the prevalence, the risk factors, and the cardiometabolic comorbidities of stroke in HIV/AIDS Central African patients.Methods. This hospital-based cross-sectional study collected clinical, laboratory, and imaging data of black Central African heterosexual, intravenous drug nonuser, and HIV/AIDS patients.Results. There were 54 men and 62 women, with a female to male ratio of 1.2 : 1. All were defined by hypercoagulability and oxidative stress. Hemorrhagic stroke was reported in 1 patient, ischemic stroke in 17 patients, and all stroke subtypes in 18 patients (15%). Younger age <45 years , autoimmunity , and metabolic syndrome defined by IDF criteria were associated with ischemic stroke.Conclusions. Clustering of several cardiometabolic factors, autoimmunity, oxidative stress, and lifestyle changes may explain accelerated atherosclerosis and high risk of stroke in these young black Africans with HIV/AIDS. Prevention and intervention programs are needed.

18 April 2012
Verified
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MMMvitu Muaka Moïse
Mvitu Muaka Moïse
BLBenjamin Longo-Mbenza
Benjamin Longo-Mbenza
TDTulomba Mona Doris
Tulomba Mona Doris
KDKibokela Ndembe Dalida
Kibokela Ndembe Dalida
NANge Okwe Augustin
Nge Okwe Augustin
To assess whether regular Mediterranean diet and regular intake of vegetables may reduce the risk of blindness, cataract, and glaucoma in these type 2 diabetics. A cross-sectional design was carried out among known black diabetics admitted at the diabetic clinics of Kinshasa, between October 2008 and March 2009. The Mediterranean-style dietary score (MSDPS) was used to characterize a Mediterranean-style dietary pattern in the study population using the Harvard semi quantitative FFQ adapted for Africa. Five hundred Type 2 diabetic patients were included in this study (48% of males; 40% aged ≥60 years). There was a significant association between blindness, cataract and aging; between blindness (P<0.05), cataract (P<0.05), glaucoma (P<0.05), and physical inactivity; between blindness (P<0.05), cataract (P<0.0001), glaucoma (P<0.01) and high SES, and a very significant association between blindness (P<0.0001), cataract (P<0.0001), glaucoma (P<0.0001) and exposure to sunlight. There was also a significant association between blindness, glaucoma, and male sex. Regular intake of Mediterranean diet, Brassica Rapa, beans, Abelmoschus, Musa acuminata reduced significantly the risk of blindness, cataract and glaucoma. Regular intake of Mediterranean diet, Brassica Rapa, beans, Abelmoschus, and Musa acuminata may significantly reduce the risk of blindness or its major causes among type 2 diabetes mellitus in Africa.

18 April 2014
Verified
Journal Article
Open access
BLBenjamin Longo-Mbenza
Benjamin Longo-Mbenza
MMMoise Mvitu Muaka
Moise Mvitu Muaka
WMWAYIZA MASAMBA
WAYIZA MASAMBA
LKLucien Muizila Kini
Lucien Muizila Kini
IPIgor Longo Phemba
Igor Longo Phemba
DMDoris Tulomba Mona
Doris Tulomba Mona
To evaluate the rates of retinopathy without diabetes and diabetic retinopathy (DR), associated with some markers of oxidative stress, antioxidants and cardiometabolic risk factors. We determined the prevalence of DR in 150 type 2 diabetes mellitus (T2DM) patients, that of retinopathy in 50 non diabetics, the levels of body mass index (BMI), waist circumference (WC), blood pressure, lipids, 8-isoprostane, 8-hydroxydeoxyguanosine (8-OHdG), gamma-glutamyl transferase GT (GGT), oxidized low-density lipoprotein (OxLDL), thiobarbituric acid reacting substances (TBARS), reduced glutathione (GSH), superoxide dismutase (SOD), uric acid, creatinine, albumin, total antioxidant status (TAOS), zinc, selenium, magnesium, vitamin C, vitamin D, vitamin E, glucose, apolipoprotein B (ApoB). The prevalences of DR at 53y and Rtp at 62y were 44% (n=66) and 10% (n=5), respectively. The highest levels of 8-isoprostane, 8-OHdG, TBARS, SOD, and OxLDL were in DR. The lowest levels of vitamin D, vitamin C, TAOS, and vitamin E were in DR. In the case-control study discriminant analysis, the levels of vitamin C, vitamin D, ApoB, 8-OHdG, creatinine, Zn, vitamin E, and WC distinguished significantly non-diabetics without DR (controls), T2DM patients without DR and T2DM patients with DR. Anticipation of DR onset is significantly associated with the exageration of oxidative stress biomarkers or decrease of antioxidants in African type 2 diabetics. Prevention of oxidative stress and abdominal obesity is needed. Supplementation in vitamin C, D, and E should be recommended as complement therapies of T2DM.