1
|
Wang Q, Nacher M, Tosi A, Clarke L, Rwagitinywa J, Alsibai KD, Castor MJ. Coverage of BCG Vaccination for children aged until 7 years old and its determinants in French Guiana. J Epidemiol Popul Health 2024; 72:202381. [PMID: 38579396 DOI: 10.1016/j.jeph.2024.202381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 04/07/2024]
Abstract
INTRODUCTION The overall incidence of tuberculosis (TB) in France is low; thus, BCG vaccination is no longer mandatory. In French Guiana - a French overseas territory - BCG vaccination is strongly recommended because the incidence of TB is high in the context of mass immigration from endemic countries with low BCG vaccination rates. Thus, it is important to assess Bacillus Calmette-Guérin (BCG) vaccination coverage and its predictors. METHODS We used data from the 2014 French Guiana Yellow Fever survey, which was conducted by the Observatoire Régional de la Santé de Guyane. Demographic and immunization data from eligible children and their families were collected using a questionnaire. Children who had an immunization card and who were no older than 7 years of age at the time of the survey were eligible. The Coverage for BCG and other mandatory vaccines were estimated; the delay in BCG vaccination was also computed. Univariate and multivariate analyses identified predictors associated with BCG immunization and BCG delayed immunization (after 2 months of age). RESULTS AND CONCLUSION Overall, 469 children were eligible for this study. The total BCG coverage was 79.5 %, and the proportion of children vaccinated with delay was 50.7 %. The multivariate analysis indicated that BCVA was significantly greater among children younger than 3 years of age, whose household head was employed and whose education level was greater. None of the predictors were associated with the delay of BCG vaccination.
Collapse
Affiliation(s)
- Qiannan Wang
- Registre des Cancers de Guyane, Cayenne 97300, French Guiana; Amazonian Infrastructures for Population Health, Cayenne 97300, French Guiana; Département Recherche Innovation Santé Publique, Centre Hospitalier de Cayenne, Cayenne 97300, French Guiana.
| | - Mathieu Nacher
- Registre des Cancers de Guyane, Cayenne 97300, French Guiana; Amazonian Infrastructures for Population Health, Cayenne 97300, French Guiana; CIC INSERM 1424, Centre Hospitalier de Cayenne, Cayenne 97300, French Guiana; Département Formation Recherche Santé, Université de Guyane, Cayenne 97300, French Guiana
| | - Alice Tosi
- Amazonian Infrastructures for Population Health, Cayenne 97300, French Guiana; Département Recherche Innovation Santé Publique, Centre Hospitalier de Cayenne, Cayenne 97300, French Guiana; Registre des handicaps de l'enfant et observatoire périnatal de Guyane, Cayenne 97300, French Guiana
| | - Loreinzia Clarke
- Observatoire Régional de la Santé de Guyane, Cayenne 97300, French Guiana
| | - Joseph Rwagitinywa
- Observatoire Régional de la Santé de Guyane, Cayenne 97300, French Guiana
| | - Kinan Drak Alsibai
- Registre des Cancers de Guyane, Cayenne 97300, French Guiana; Département Recherche Innovation Santé Publique, Centre Hospitalier de Cayenne, Cayenne 97300, French Guiana; Centre de Ressources Biologiques Amazonie, Centre Hospitalier de Cayenne, Cayenne 97300, French Guiana; Service d'Anatomopathologie, Centre Hospitalier de Cayenne, Cayenne 97300, French Guiana
| | | |
Collapse
|
2
|
Houël E, Nardella F, Jullian V, Valentin A, Vonthron-Sénécheau C, Villa P, Obrecht A, Kaiser M, Bourreau E, Odonne G, Fleury M, Bourdy G, Eparvier V, Deharo E, Stien D. Wayanin and guaijaverin, two active metabolites found in a Psidium acutangulum Mart. ex DC (syn. P. persoonii McVaugh) (Myrtaceae) antimalarial decoction from the Wayana Amerindians. J Ethnopharmacol 2016; 187:241-8. [PMID: 27132714 DOI: 10.1016/j.jep.2016.04.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/14/2016] [Accepted: 04/28/2016] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Psidium acutangulum Mart. ex DC is a small tree used by the Wayana Amerindians from the Upper-Maroni in French Guiana for the treatment of malaria. AIM OF THE STUDY In a previous study, we highlighted the in vitro antiplasmodial, antioxidant and anti-inflammatory potential of the traditional decoction of P. acutangulum aerial parts. Our goal was then to investigate on the origin of the biological activity of the traditional remedy, and eventually characterize active constituents. MATERIALS AND METHODS Liquid-liquid extractions were performed on the decoction, and the antiplasmodial activity evaluated against chloroquine-resistant FcB1 ([(3)H]-hypoxanthine bioassay) and 7G8 (pLDH bioassay) P. falciparum strains, and on a chloroquine sensitive NF54 ([(3)H]-hypoxanthine bioassay) P. falciparum strain. The ethyl acetate fraction (D) was active and underwent bioguided fractionation. All the isolated compounds were tested on P. falciparum FcB1 strain. In vitro anti-inflammatory activity (IL-1β, IL-6, IL-8, TNFα) of the ethyl acetate fraction and of an anti-Plasmodium active compound, was concurrently assessed on LPS-stimulated human PBMC and NO secretion inhibition was measured on LPS stimulated RAW murine macrophages. Cytotoxicity of the fractions and pure compounds was measured on VERO cells, L6 mammalian cells, PBMCs, and RAW cells. RESULTS Fractionation of the ethyl acetate soluble fraction (IC50 ranging from 3.4 to <1µg/mL depending on the parasite strain) led to the isolation of six pure compounds: catechin and five glycosylated quercetin derivatives. These compounds have never been isolated from this plant species. Two of these compounds (wayanin and guaijaverin) were found to be moderately active against P. falciparum FcB1 in vitro (IC50 5.5 and 6.9µM respectively). We proposed the name wayanin during public meetings organized in June 2015 in the Upper-Maroni villages, in homage to the medicinal knowledge of the Wayana population. At 50µg/mL, the ethyl acetate fraction (D) significantly inhibited IL-1β secretion (-46%) and NO production (-21%), as previously observed for the decoction. The effects of D and guiajaverin (4) on the secretion of other cytokines or NO production were not significant. CONCLUSIONS The confirmed antiplasmodial activity of the ethyl acetate soluble fraction of the decoction and of the isolated compounds support the previous results obtained on the P. acutangulum decoction. The antiplasmodial activity might be due to a mixture of moderately active non-toxic flavonoids. The anti-inflammatory activities were less marked for ethyl acetate fraction (D) than for the decoction.
Collapse
Affiliation(s)
- Emeline Houël
- CNRS, UMR EcoFoG (AgroParisTech, CIRAD, INRA, UA, UG), Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP6010, 97306 Cayenne Cedex, French Guiana.
| | - Flore Nardella
- Laboratoire d'Innovation Thérapeutique UMR CNRS 7200, LabEx Medalis, Faculté de Pharmacie, Université de Strasbourg, 74 route du Rhin, 67401 Illkirch cedex, France; Institut de Parasitologie et de Pathologie Tropicale de Strasbourg (IPPTS) - Faculté de Médecine, Université de Strasbourg, Strasbourg, France
| | - Valérie Jullian
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Alexis Valentin
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Catherine Vonthron-Sénécheau
- Laboratoire d'Innovation Thérapeutique UMR CNRS 7200, LabEx Medalis, Faculté de Pharmacie, Université de Strasbourg, 74 route du Rhin, 67401 Illkirch cedex, France
| | - Pascal Villa
- Plate-forme de Chimie Biologique Intégrative de Strasbourg UMS 3286 CNRS-Université de Strasbourg, LabEx Medalis et FMTS, ESBS Pôle API, Bld Sébastien Brant, 67412 Illkirch Cedex, France
| | - Adeline Obrecht
- Plate-forme de Chimie Biologique Intégrative de Strasbourg UMS 3286 CNRS-Université de Strasbourg, LabEx Medalis et FMTS, ESBS Pôle API, Bld Sébastien Brant, 67412 Illkirch Cedex, France
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institution, Socinstrasse 57, 4002 Basel, Switzerland; University of Basel, Petersplatz 1, 4003 Basel, Switzerland
| | - Eliane Bourreau
- Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP6010, 97306 Cayenne Cedex, French Guiana
| | - Guillaume Odonne
- Laboratoire Ecologie,évolution, interactions des systèmes amazoniens (LEEISA), CNRS, Université de Guyane, IFREMER, 97300 Cayenne, French Guiana
| | - Marie Fleury
- Museum National d'Histoire Naturelle, UMR 208 PALoc, MNHN-IRD, BP 165, 97323 Cayenne cedex, French Guiana
| | | | - Véronique Eparvier
- CNRS - Institut de Chimie des Substances Naturelles, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Eric Deharo
- UMR 152 Pharma Dev, Université de Toulouse, IRD, UPS, France
| | - Didier Stien
- CNRS - Institut de Chimie des Substances Naturelles, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France; Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique, 66650 Banyuls/Mer, France.
| |
Collapse
|