V. Guiyedi, P. Deshpande, C. Fesel, Rajendra Jain, A. Dzeing-Ella, P. Cazenave, M. Kombila, G. C. Mishra, S. Pied
{"title":"Correlation of Plasma Soluble Fas Ligand Levels with Severe Anaemia in Gabonese and Indian Plasmodium falciparum Malaria Patients","authors":"V. Guiyedi, P. Deshpande, C. Fesel, Rajendra Jain, A. Dzeing-Ella, P. Cazenave, M. Kombila, G. C. Mishra, S. Pied","doi":"10.2174/1874315300902010017","DOIUrl":"https://doi.org/10.2174/1874315300902010017","url":null,"abstract":"A comparative analysis of the plasma concentrations of soluble Fas-L (sFas-L) and their correlation with he- moglobin levels and malaria severity was carried out in cohorts of P. falciparum-infected patients from Gabon and India. Young patients from Gabon had plasma levels of sFas-L that increased with disease severity. In contrast, in Indian adults plasmatic sFas-L levels were more elevated in UM and SNCM than in CM. In both Gabonese and Indian subjects, sFas-L concentrations were negatively correlated with haemoglobin rates, which were lower in SNCM than in UM or CM in both populations. We also observed a positive correlation between the level of plasmatic sFas-L with the level of circulating IL-2 receptor in the Indian patients. All these observations suggest a paradoxical role of sFas-L in CM pathogenesis when comparing Gabonese and Indian patients, while a similar role was found to be associated with severe anaemia.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"57 1","pages":"17-23"},"PeriodicalIF":0.0,"publicationDate":"2009-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. W. Bekheet, M. Madkour, N. Ghaffar, M. Nosseir, M. Moussa, R. A. Ibraheim, M. Ateya
{"title":"The role of myeloperoxidase in hepatitis C virus infection and associated liver cirrhosis.","authors":"I. W. Bekheet, M. Madkour, N. Ghaffar, M. Nosseir, M. Moussa, R. A. Ibraheim, M. Ateya","doi":"10.2174/1874315300902010001","DOIUrl":"https://doi.org/10.2174/1874315300902010001","url":null,"abstract":"Myeloperoxidase (MPO) is an important enzyme that found in neutrophils and involved in reactive oxygen species (ROS) production. The aim of the current study was to clarify the potential role of MPO in oxidative stress and liver fibrosis associated with hepatitis C virus (HCV) infection. This study was conducted on 90 subjects, 10 normal con- trols and 80 patients having HCV infection classified into chronic hepatitis C without cirrhosis (CHC) (50 cases) and CHC with cirrhosis (LC) (30 cases). Myeloperoxidase was assessed in plasma by ELISA technique and in liver tissue by immunohistochemistry. Malondialdehye (MDA), as a marker of lipid peroxidation and oxidative stress was also measured in plasma by spectrophotometric assay. Results revealed significant increase of both plasma and hepatic tissue MPO in cirrhotic patients compared to either controls or CHC patients (p<0.05). Plasma and tissue MPO showed significant direct correlation with liver aminotransferases (ALT and AST), MDA and stage of hepatic fibrosis. Regression analysis revealed that both plasma and tissue MPO are independent determinant for MDA and stage of hepatic fibrosis. The results incrimi- nate MPO in oxidative stress that causes tissue damage in chronic HCV patients and the subsequent development of he- patic cirrhosis.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"2 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2009-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Jongh, M. Roux, A. Adam, A. Caliendo, A. Hoosen
{"title":"Co-infection with Neisseria gonorrhoeae, Chlamydia trachomatis and Trichomonas vaginalis in symptomatic South African men with urethritis: implications for syndromic management.","authors":"M. Jongh, M. Roux, A. Adam, A. Caliendo, A. Hoosen","doi":"10.2174/1874315300902010013","DOIUrl":"https://doi.org/10.2174/1874315300902010013","url":null,"abstract":"Background: This study was undertaken to determine co-infection rates of common aetiological agents of ure- thritis and information regarding sexual contacts of symptomatic males presenting to a family practitioner. Methods: Endo-urethral swab specimens were collected from 253 symptomatic men and tested for N. gonorrhoeae, C. trachomatis by the BD ProbeTec ™ ET assay and for T. vaginalis by real-time PCR. Information regarding sexual behav- iour was collected by the practitioner using a structured interview. Results: Of the 253 patients investigated, 50 complained of urethral discharge with/without burning on micturition (BOM), the remaining 203 only complained of BOM. N. gonorrhoeae was isolated from 45%, C. trachomatis from 15% and T. vaginalis from 5.5%. N. gonorrhoeae/C. trachomatis co-infection was diagnosed in 7.5% and T. vaginalis was de- tected in a higher number of males presenting without visible discharge. Similar number of men reported sexual contact only with their wives compared to men having casual sexual contacts. There were fewer gonococcal infections in men re- porting sexual contact with their wives alone compared to men reporting casual sexual encounters. Conclusions: Treatment guidelines for men presenting to Primary Health Care facilities and Family Practitioners need to consider the evolving antimicrobial resistance profiles and the presence of mixed infections in symptomatic patients.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"39 1","pages":"13-16"},"PeriodicalIF":0.0,"publicationDate":"2009-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Ménard, N. Madji, A. Manirakiza, A. Faou, G. Grésenguet
{"title":"Low efficacy of vocamine (MMH8®, pediatric formulation) in the treatment of uncomplicated Plasmodium falciparum malaria.","authors":"D. Ménard, N. Madji, A. Manirakiza, A. Faou, G. Grésenguet","doi":"10.2174/1874315300902010008","DOIUrl":"https://doi.org/10.2174/1874315300902010008","url":null,"abstract":"Background: This paper reports for the first time, the antimalarial efficacy of a five-day course of paediatric formulation of \"vocamine\" named MMH8 ® from Millenia Hope Inc ® for the treatment of uncomplicated Plasmodium fal- ciparum malaria. Methods: We used the standard 14-day WHO protocol to assess therapeutic responses in children less than 5 years in Bangui (Central African Republic) between January and March 2005. Results: We observed high rate of failure treatment: 81 % overall treatment failure with 51 % of Early Treatment Failure and 28.6 % of Late Treatment Failure. Conclusion: Convinced that this drug has only a limited antimalarial effect, the Ministry of Health of the Central African Republic has decided to stop this clinical trial. BACKGROUND Development of resistance of Plasmodium falciparum is an increasing problem for antimalarial chemotherapy be- cause resistance against most available drugs, especially chloroquine and pyrimethamine-sulfadoxine (SP), has devel- oped in the majority of world-wide parasite populations (1). Therefore, several strategies to counteract resistance- development are in place as the use of combined therapies with artemisinin derivatives but identification of new natural compounds remains essential.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"2 1","pages":"8-12"},"PeriodicalIF":0.0,"publicationDate":"2009-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Commercial sex work, survival sex, sexual violence and HIV/AIDS prevention in Arumeru district, Arusha region of Tanzania.","authors":"A. Renzaho, M. Pallotta-Chiarolli","doi":"10.2174/1874315300902010027","DOIUrl":"https://doi.org/10.2174/1874315300902010027","url":null,"abstract":"Objective: To examine the knowledge and practices about HIV/AIDS among female Tanzanian commercial sex workers (CSWs) and assess the contextual dynamics that prevent safer sexual behaviours. Method: The study used mixed methods and was implemented in two phases. Phase one assessed the knowledge and practices about HIV/AIDS among CSWs. Data were obtained with 54 CSWs, who were selected by using a snowball sampling approach. Semi-structured, face-to-face interviews with the CSWs were undertaken to allow the research participants to describe and discuss their lived realities as they perceive and experience them. In phase two, three discrete focus group discussions, each comprising 6-10 women, were carried out with 26 of the 54 CSWs who were interviewed in phase one. Results: There was exploitation and inequity in the women’s lives due to the multiple and overlapping oppressions of poverty and patriarchy. Sexual violence was framed, legitimised and reinforced by structural and cultural inequities. Such exploitation impacted not only on CSWs’ lives as sex workers, but on their previous and/or simultaneous lives as mothers, wives, girlfriends and daughters. The women practised ‘survival sex’ as CSWs and/or sexual partners of men, and experienced sexual violence from their clients/partners. This violence was either culturally legitimised within a patriarchal framework or manifested itself as ‘displaced aggressive sex’ by men experiencing marginalisation in socio-economic spheres. Conclusion: Government health policies and criminal laws regarding sex work, violence against sex workers and domestic/sexual violence against all women need to be critiqued and consistently implemented. Addressing the ‘survival sex’ of women in Tanzania cannot occur without addressing what the authors call the ‘displaced aggressive sex’ of men.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"2 1","pages":"27-38"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Chomba, T. Taylor, W. Hauser, C. Wasterlain, N. Organek, G. Birbeck
{"title":"Seizure Recurrence in Rural Zambian Children Admitted with Febrile Seizures","authors":"E. Chomba, T. Taylor, W. Hauser, C. Wasterlain, N. Organek, G. Birbeck","doi":"10.2174/1874315300801010101","DOIUrl":"https://doi.org/10.2174/1874315300801010101","url":null,"abstract":"Background: Long-term outcomes following febrile seizures in African children are not well described, but ma- laria-associated seizures are a risk factor for epilepsy. Design/Methods: 107 consecutive children admitted with febrile seizures (FS group) were age-matched to concurrently admitted children with febrile illness and no seizure, or febrile illness only (FIO). Quarterly follow-up assessments deter- mined interim seizures and developmental outcomes. Results: 214 children were enrolled and followed for mean 20.4 months (median 24, mode 27). The most common diag- nosis was clinical malaria. During follow-up, children in the FS group were more likely to have recurrent febrile seizures (29.9 vs. 11.3%; RR1.27; CI 1.10-1.46), an unprovoked seizure (27.1 vs. 1.9%; RR 1.35; CI 1.20-1.52) and epilepsy (11.2 vs. 0.9; RR 1.16; CI 1.04-1.20). Risk factors for unprovoked seizures during follow-up included younger age at enroll- ment (25.5 v. 34.6 months, p=0.04) and developmental delay preceding the index illness (33.3 vs. 13.1%, p=0.009). Within the FS group, children with focal seizures at enrollment were more likely to experience unprovoked seizures (52.9 vs. 20%, p=0.007) and epilepsy (41.7 vs. 7.8%, p=0.03). Conclusions: Children admitted with febrile seizures in rural Zambia have a high risk of subsequent epilepsy. Further re- search is needed to determine if specific infectious etiologies (e.g. malaria) are associated with epilepsy development in such children. Where access to healthcare services are limited, febrile seizure admission may also be a marker for a pre- existing propensity toward later epilepsy. Regardless, follow- up is warranted to facilitate early initiation of treatment if recurrent, unprovoked seizures occur.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"1 1","pages":"101-107"},"PeriodicalIF":0.0,"publicationDate":"2008-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Seroepidemiological Survey of Chlamydia Trachomatis in Patients Attending Pre and Post Natal Clinics in Lagos Nigeria","authors":"L. Okoror, S. Omilabu, P. O. Orue, G. Ajayi","doi":"10.2174/1874315300801010083","DOIUrl":"https://doi.org/10.2174/1874315300801010083","url":null,"abstract":"Of the 245 patients screened for the presence of complement fixing antibody to Chlamydia trachomatis, 89 (35.74%) tested positive while 104 (42.5%) of the patients were weakly positive and 4 (1.61%) were non-specific. Age group distribution showed that the highest number of patients testing positive to Chlamydia complement fixing antibody was in the age range of 31-36 year for both males and females while the lowest number of the age range testing positive was between 19-20 and 43-48 years of age for both sexes. One out of 4 umblical cord fluids tested positive along with the mother, father and baby a month after delivery. All males who accompanied their spouses to the clinics were also tested for Chlamydia complement fixing antibody and all the males involved in active cigarette smoking tested positive. The highest antibody titre was in the age range of 31-36 years. There was a four fold rise in antibody titre for nearly all the pa- tients except for a few who had their antibody level dropping, most probably because they were in the convalescence stage. This study concludes that the infection is endemic especially in such a very delicate population as anti-natal pa- tients. This is because of the risk of mother to child transmission.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"1 1","pages":"83-86"},"PeriodicalIF":0.0,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Å. B. Andersen, F. V. Leth, P. Magnussen, Mugomela Apolinary, H. Friis, M. Tanzania
{"title":"Risk Factors for Smear Negative And Culture Positive Results Among Pulmonary Tuberculosis Patients in Mwanza, Tanzania","authors":"Å. B. Andersen, F. V. Leth, P. Magnussen, Mugomela Apolinary, H. Friis, M. Tanzania","doi":"10.2174/1874315300801010068","DOIUrl":"https://doi.org/10.2174/1874315300801010068","url":null,"abstract":"Background: Smear negative and culture positive results in pulmonary tuberculosis are not uncommon yet the underlying factors are not well established. Objective: To determine factors associated with smear negative and culture positive results. Methods: Pulmonary tuberculosis patients were consecutively recruited for 12 months from five health facilities in Mwanza region, Tanzania. Sputum examinations were done at the recruitment centre and at the TB reference laboratory using Auramine O technique. Culture was done at the TB reference laboratory using Lowenstein Jensen solid media. A post-hoc analysis compared patients who had a smear negative culture positive result (case) with patients who had not (controls). Results: A total of 655 pulmonary TB patients were recruited, 18 had no culture results and were excluded from the analy- sis. Of the remaining 637 patients, 127 (19.9%) had three negative smears at the recruitment centre and 34 patients were a case. Current smoking was strongly associated with being a case, especially in women. Of the 127 patients who had three negative smears at the recruitment center, 104 (81.9%) also had a negative smear at the reference laboratory. Of these, 13 (12.5%) were still culture positive. Conclusion: The frequencies of smear-negative culture-positive results differ between health facilities, indicating possible difference in quality of laboratory procedures. Strengthening of laboratory capacity is needed both for optimizing smear microscopy techniques, and for performing sputum cultures for diagnosing TB when there is a high rate of suspicion. The association between smoking and smear negative culture positive TB needs to be assessed in adequately large studies.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"1 1","pages":"68-73"},"PeriodicalIF":0.0,"publicationDate":"2008-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Mirfendereski, Naveen Pathak, Tejas Patel, K. Cervellione, Sameer Sharma, F. Bagheri
{"title":"Hemorrhagic Bullous Cellulitis/Necrotizing Fasciitis of the Foot due to V. fluvialis and Complicated by E. cloacae Osteomyelitis","authors":"S. Mirfendereski, Naveen Pathak, Tejas Patel, K. Cervellione, Sameer Sharma, F. Bagheri","doi":"10.2174/1874315300801010047","DOIUrl":"https://doi.org/10.2174/1874315300801010047","url":null,"abstract":"Vibrio fluvialis (V. fluvialis) is a halophilic bacterium that is most often associated with gastrointestinal tract in- fections after consumption of contaminated seafood. The predominant presenting symptoms of V. Fluvialis infection in- clude explosive diarrhea, vomiting, abdominal pain and dehydration. Vibrio species, V. Fluvialis in particular, are rarely a cause of necrotizing fasciitis. We describe a case of a 56-year-old male presenting with complaints of redness and swel- ling of and discharge from his right toes. The patient was diagnosed with necrotizing fasciitis and septicemia. Debride- ment of the areas proved unsuccessful; amputation of infected phalanges was effective in preventing spread of disease. Cultures were positive for V. fluvialis from the bullae aspirates and Enterobacter cloacae from the bone culture. The pa- tient recovered successfully from both infections. This case is atypical because of the absence of any gastrointestinal symptoms and the presence of necrotizing fasciitis and septicemia due to V. Fluvialis infection.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"1 1","pages":"47-50"},"PeriodicalIF":0.0,"publicationDate":"2008-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68067965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tetracycline Antibiotics in Malaria","authors":"S. Briolant, T. Fusai, C. Rogier, B. Pradines","doi":"10.2174/1874315300801010031","DOIUrl":"https://doi.org/10.2174/1874315300801010031","url":null,"abstract":"The emergence and rapid extension of Plasmodium falciparum resistance to various antimalarial compounds has gradually limited malaria therapeutic possibilities available to clinicians and the choice of an adapted prophylaxis to travellers specific for their destinations. In this context, doxycycline constitutes an interesting alternative apart from its counter-indications, occurring primarily in children less than eight years old and in pregnant women. Already used suc- cessfully in the treatment of malaria in association with quinine in zones of multi-resistances, doxycycline has proven to be effective and well-tolerated in the prevention of malaria. Resistance to doxycycline has not been described until now. The listed prophylactic failures are primarily dependent on an incorrect observation. The mechanisms of action of doxy- cycline on the parasite are not completely elucidated. The identification of the molecular targets of doxycycline would al- low the design of structural analogues that are more active and stable.","PeriodicalId":88762,"journal":{"name":"The open tropical medicine journal","volume":"1 1","pages":"31-46"},"PeriodicalIF":0.0,"publicationDate":"2008-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68068504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}