1
|
Marciano S, Gutierrez-Acevedo MN, Barbero S, Del C Notari L, Agozino M, Fernandez JL, Anders MM, Grigera N, Antinucci F, Orozco Ganem OF, Murga MD, Perez D, Palazzo A, Martinez Rejtman L, Duarte IG, Vorobioff J, Trevizan V, Bulaty S, Bessone F, Valverde M, Elizondo M, Bosia JD, Borzi SM, Stieben TE, Masola A, Ferretti SE, Arufe D, Demirdjian E, Raffa MP, Peralta M, Fainboim HA, Vazquez CE, Ruiz P, Martínez JE, Heffner LA, Odzak A, Dirchwolf M, Smud A, Mendizabal M, Bellizzi C, Martinez A, Tomatis J, Bruno A, Ramos A, Pages J, Tevez S, Gadano AC, Giunta DH. Norfloxacin prophylaxis effect on multidrug resistance in patients with cirrhosis and bacterial infections. Eur J Clin Microbiol Infect Dis 2023; 42:481-491. [PMID: 36820931 DOI: 10.1007/s10096-023-04572-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/13/2023] [Indexed: 02/24/2023]
Abstract
It is unclear whether norfloxacin predisposes to infections by multidrug-resistant organisms (MDROs). We aimed to evaluate if patients with cirrhosis receiving norfloxacin prophylaxis at the time of the diagnosis of bacterial infections were more likely to present a multidrug-resistant isolate than those without prophylaxis. This is a cross-sectional study of hospitalized patients with cirrhosis and bacterial infections from Argentina and Uruguay (NCT03919032) from September 2018 to December 2020. The outcome variable was a multidrug-resistant bacterial infection. We used inverse probability of treatment weighting to estimate the odds ratio (OR) of norfloxacin on infection caused by MDROs considering potential confounders. Among the 472 patients from 28 centers, 53 (11%) were receiving norfloxacin at the time of the bacterial infection. Patients receiving norfloxacin had higher MELD-sodium, were more likely to have ascites or encephalopathy, to receive rifaximin, beta-blockers, and proton-pump inhibitors, to have a nosocomial or health-care-associated infection, prior bacterial infections, admissions to critical care units or invasive procedures, and to be admitted in a liver transplant center. In addition, we found that 13 (24.5%) patients with norfloxacin and 90 (21.5%) of those not receiving it presented infections caused by MDROs (adjusted OR 1.55; 95% CI: 0.60-4.03; p = 0.360). The use of norfloxacin prophylaxis at the time of the diagnosis of bacterial infections was not associated with multidrug resistance. These results help empiric antibiotic selection and reassure the current indication of norfloxacin prophylaxis in well-selected patients.Study registration number: NCT03919032.
Collapse
Affiliation(s)
- Sebastián Marciano
- Liver Unit, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
- Department of Research, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | | | - Sabrina Barbero
- Liver Unit, Hospital Churruca Visca, Buenos Aires, Argentina
| | | | | | | | | | - Nadia Grigera
- Liver Unit, Hospital Alemán, Buenos Aires, Argentina
| | | | | | - Maria D Murga
- Liver Unit, Hospital A.C. Padilla, San Miguel de Tucumán, Argentina
| | - Daniela Perez
- Liver Unit, Hospital A.C. Padilla, San Miguel de Tucumán, Argentina
| | - Ana Palazzo
- Liver Unit, Hospital A.C. Padilla, San Miguel de Tucumán, Argentina
| | | | - Ivonne G Duarte
- P. R. Liver Unit, Hospital 4 de Junio, Sáenz Peña, Argentina
| | - Julio Vorobioff
- Liver Unit, Hospital Provincial del Centenario, Rosario, Argentina
| | | | - Sofía Bulaty
- Liver Unit, Hospital Provincial del Centenario, Rosario, Argentina
| | - Fernando Bessone
- Liver Unit, Hospital Provincial del Centenario, Rosario, Argentina
| | - Marcelo Valverde
- Liver Unit, Unidad Bi-Institucional de Trasplante Hepatico, Hospital de Clínicas - Hospital Militar, Montevideo, Uruguay
| | - Martín Elizondo
- Liver Unit, Unidad Bi-Institucional de Trasplante Hepatico, Hospital de Clínicas - Hospital Militar, Montevideo, Uruguay
| | | | | | | | | | | | - Diego Arufe
- Liver Unit, Sanatorio Sagrado Corazón, Buenos Aires, Argentina
| | | | - Maria P Raffa
- Liver Unit, Sanatorio Sagrado Corazón, Buenos Aires, Argentina
| | | | | | - Cintia E Vazquez
- Liver Unit, Regional Hospital of Rio Gallegos, Rio Gallegos, Argentina
| | - Pablo Ruiz
- Liver Unit, Regional Hospital of Rio Gallegos, Rio Gallegos, Argentina
| | | | | | - Andrea Odzak
- Liver Unit, Hospital Argerich, Buenos Aires, Argentina
| | | | - Astrid Smud
- Infectious Diseases Section, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | | | | | - Ana Martinez
- Liver Unit, Hospital Fernández, Buenos Aires, Argentina
| | - Jesica Tomatis
- Liver Unit, Hospital Privado de Rosario, Rosario, Argentina
| | - Andres Bruno
- Liver Unit, Hospital Argerich, Buenos Aires, Argentina
| | - Agñel Ramos
- Liver Unit, Sanatorio Parque, Rosario, Argentina
| | - Josefina Pages
- Liver Unit, Hospital Universitario Austral, Pilar, Argentina
| | - Silvina Tevez
- Liver Unit, Sanatorio Güemes, Buenos Aires, Argentina
| | - Adrian C Gadano
- Liver Unit, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
- Department of Research, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Diego H Giunta
- Department of Research, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| |
Collapse
|
2
|
Abstract
We provide field monitoring data of a territorial raptor (the booted eagle, Hieraaetus pennatus), that was intensively monitored over a period of 18 years (1998-2015) in a Mediterranean forested area of south-eastern Spain designated as a Special Protection Area (Natura 2000 Network) for this species. The data set compiles all the relevant information about the occupation of territories and nests, reproductive ecology, long-term monitoring of marked individuals and influence of parent's colour morph on brood size. Several questions concerning the population ecology of forest-dwelling raptors and factors conditioning territorial occupancy, such as location cues or site fidelity, are addressed. This type of long-term population monitoring has high potential for replication, reuse and comparison purposes, providing insights for monitoring other long-lived, territorial species.
Collapse
Affiliation(s)
- María V Jiménez-Franco
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain.
- Departamento de Biología Aplicada, Universidad Miguel Hernández de Elche, Elche, Spain.
| | - José E Martínez
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
- Bonelli's Eagle Study and Conservation Group, Murcia, Spain
| | - Iluminada Pagán
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
| | - José F Calvo
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
| |
Collapse
|
3
|
Zuberogoitia I, Martínez JE, González‐Oreja JA, de Buitrago CG, Belamendia G, Zabala J, Laso M, Pagaldai N, Jiménez‐Franco MV. Maximizing detection probability for effective large‐scale nocturnal bird monitoring. DIVERS DISTRIB 2020. [DOI: 10.1111/ddi.13075] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Iñigo Zuberogoitia
- Estudios Medioambientales Icarus S.L. Bilbao Spain
- Department of OrnithologyAranzadi Sciences Society Donostia‐San Sebastián Spain
| | | | | | | | - Gorka Belamendia
- Centro de Estudios Ambientales Ayuntamiento de Vitoria‐Gasteiz Vitoria‐Gasteiz Spain
| | | | - Maite Laso
- Department of OrnithologyAranzadi Sciences Society Donostia‐San Sebastián Spain
| | - Nerea Pagaldai
- Department of OrnithologyAranzadi Sciences Society Donostia‐San Sebastián Spain
| | | |
Collapse
|
4
|
Jiménez-Franco MV, Martínez-Fernández J, Martínez JE, Pagán I, Calvo JF, Esteve MA. Nest sites as a key resource for population persistence: A case study modelling nest occupancy under forestry practices. PLoS One 2018; 13:e0205404. [PMID: 30308009 PMCID: PMC6181357 DOI: 10.1371/journal.pone.0205404] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 09/25/2018] [Indexed: 11/19/2022] Open
Abstract
Natural nest sites are important breeding resource in terms of population dynamics, especially in forest systems where nest trees limit populations or timber harvesting destroys nests. Nest structures usually have a long life and can be reused by breeding pairs across multiple breeding seasons, so studying their dynamics is of relevance for biodiversity conservation. In this study, we develop a dynamic model to evaluate nest site availability and its influence on the breeding settlement of a forest raptor community composed of booted eagle (Hieraaetus pennatus), common buzzard (Buteo buteo) and northern goshawk (Accipiter gentilis) in a Mediterranean forest ecosystem in southeast Spain. This model approach is also applied to analyse the influence of forestry practices on the dynamics of occupied nests for a simulated period (2010–2050). The simulated scenarios include unmanaged forest and timber harvesting practices of clearcuttings every ten years considering two factors: the age class of trees for clearcutting (40, 50, 60 and 70 years old) and the type of forest management (with or without nest protection). Our simulated results show that the number of breeding pairs is constant during the period without timber harvest, whereas breeding pairs gradually decrease in the scenario of clearcutting trees aged from 70 to 50-years without nest protection, and populations become extinct with the clearcutting of 40-year old trees. Considering the practice of clearcutting and nest protection, nest occupancy can reach the maximum number of occupied nests for the scenarios of cutting 70 and 60-year old trees, and maintain populations without extinction for the scenarios of cutting 40-year old trees. We conclude that nest sites (whether occupied or not) are key resources for increasing the occupancy of the forest raptor community and that nest protection measures buffer the effects of clearcuttings, thus preventing population extinction.
Collapse
Affiliation(s)
- María V. Jiménez-Franco
- Área de Ecología, Departamento de Biología Aplicada, Universidad Miguel Hernández, Elche, Spain
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
- * E-mail:
| | | | - José E. Martínez
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
- Bonelli’s Eagle Study and Conservation Group, Murcia, Spain
| | - Iluminada Pagán
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
| | - José F. Calvo
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
| | - Miguel A. Esteve
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
| |
Collapse
|
5
|
León-Ortega M, Martínez JE, Pérez E, Lacalle JA, Calvo JF. The contribution of non-protected areas to the conservation of Eurasian Eagle-owls in Mediterranean ecosystems. Ecosphere 2017. [DOI: 10.1002/ecs2.1952] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Mario León-Ortega
- Departamento de Ecología e Hidrología; Facultad de Biología; Universidad de Murcia; 30100 Murcia Spain
| | - José E. Martínez
- Departamento de Ecología e Hidrología; Facultad de Biología; Universidad de Murcia; 30100 Murcia Spain
- Bonelli′s Eagle Study and Conservation Group; apdo. 4009 30080 Murcia Spain
| | - Eloy Pérez
- Departamento de Ecología e Hidrología; Facultad de Biología; Universidad de Murcia; 30100 Murcia Spain
| | - José A. Lacalle
- Departamento de Ecología e Hidrología; Facultad de Biología; Universidad de Murcia; 30100 Murcia Spain
| | - José F. Calvo
- Departamento de Ecología e Hidrología; Facultad de Biología; Universidad de Murcia; 30100 Murcia Spain
| |
Collapse
|
6
|
León-Ortega M, Jiménez-Franco MV, Martínez JE, Calvo JF. Factors influencing territorial occupancy and reproductive success in a Eurasian Eagle-owl (Bubo bubo) population. PLoS One 2017; 12:e0175597. [PMID: 28399175 PMCID: PMC5388503 DOI: 10.1371/journal.pone.0175597] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 03/28/2017] [Indexed: 11/18/2022] Open
Abstract
Modelling territorial occupancy and reproductive success is a key issue for better understanding the population dynamics of territorial species. This study aimed to investigate these ecological processes in a Eurasian Eagle-owl (Bubo bubo) population in south-eastern Spain during a seven-year period. A multi-season, multi-state modelling approach was followed to estimate the probabilities of occupancy and reproductive success in relation to previous state, time and habitat covariates, and accounting for imperfect detection. The best estimated models showed past breeding success in the territories to be the most important factor determining a high probability of reoccupation and reproductive success in the following year. In addition, alternative occupancy models suggested the positive influence of crops on the probability of territory occupation. By contrast, the best reproductive model revealed strong interannual variations in the rates of breeding success, which may be related to changes in the abundance of the European Rabbit, the main prey of the Eurasian Eagle-owl. Our models also estimated the probabilities of detecting the presence of owls in a given territory and the probability of detecting evidence of successful reproduction. Estimated detection probabilities were high throughout the breeding season, decreasing in time for unsuccessful breeders but increasing for successful breeders. The probability of detecting reproductive success increased with time, being close to one in the last survey. These results suggest that reproduction failure in the early stages of the breeding season is a determinant factor in the probability of detecting occupancy and reproductive success.
Collapse
Affiliation(s)
- Mario León-Ortega
- Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain
| | - María V. Jiménez-Franco
- Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain
| | - José E. Martínez
- Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain
- Bonelli’s Eagle Study and Conservation Group, Murcia, Spain
| | - José F. Calvo
- Departamento de Ecología e Hidrología, Facultad de Biología, Universidad de Murcia, Murcia, Spain
- * E-mail:
| |
Collapse
|
7
|
León-Ortega M, Delgado MDM, Martínez JE, Penteriani V, Calvo JF. Factors affecting survival in Mediterranean populations of the Eurasian eagle owl. EUR J WILDLIFE RES 2016. [DOI: 10.1007/s10344-016-1036-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
8
|
Jiménez-Franco MV, Martínez JE, Calvo JF. Lifespan analyses of forest raptor nests: patterns of creation, persistence and reuse. PLoS One 2014; 9:e93628. [PMID: 24717935 PMCID: PMC3981714 DOI: 10.1371/journal.pone.0093628] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/05/2014] [Indexed: 11/18/2022] Open
Abstract
Structural elements for breeding such as nests are key resources for the conservation of bird populations. This is especially true when structural elements require a specific and restricted habitat, or if the construction of nests is costly in time and energy. The availability of nesting-platforms is influenced by nest creation and persistence. In a Mediterranean forest in southeastern Spain, nesting-platforms are the only structural element for three forest-dwelling raptor species: booted eagle Aquila pennata, common buzzard Buteo buteo and northern goshawk Accipiter gentilis. From 1998 to 2013, we tracked the fate of 157 nesting-platforms built and reused by these species with the aim of determining the rates of creation and destruction of nesting-platforms, estimating nest persistence by applying two survival analyses, describing the pattern of nest reuse and testing the effects of nest use on breeding success. Nest creation and destruction rates were low (0.14 and 0.05, respectively). Using Kaplan Meier survival estimates and Cox proportional-hazards regression models we found that median nest longevity was 12 years and that this was not significantly affected by nest characteristics, nest-tree dimensions, nest-builder species, or frequency of use of the platform. We also estimated a transition matrix, considering the different stages of nest occupation (vacant or occupied by one of the focal species), to obtain the fundamental matrix and the average life expectancies of nests, which varied from 17.9 to 19.7 years. Eighty six percent of nests were used in at least one breeding attempt, 67.5% were reused and 17.8% were successively occupied by at least two of the study species. The frequency of nest use had no significant effects on the breeding success of any species. We conclude that nesting-platforms constitute an important resource for forest raptors and that their longevity is sufficiently high to allow their reuse in multiple breeding attempts.
Collapse
Affiliation(s)
| | - José E. Martínez
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
- Bonelli’s Eagle Study and Conservation Group, Murcia, Spain
| | - José F. Calvo
- Departamento de Ecología e Hidrología, Universidad de Murcia, Murcia, Spain
| |
Collapse
|
9
|
Martínez JE, Jiménez-Franco MV, Zuberogoitia I, León-Ortega M, Calvo JF. Assessing the short-term effects of an extreme storm on Mediterranean forest raptors. Acta Oecologica 2013. [DOI: 10.1016/j.actao.2013.01.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
10
|
Abellán MD, Martínez JE, Palazón JA, Esteve MA, Calvo JF. Efficiency of a protected-area network in a Mediterranean region: a multispecies assessment with raptors. Environ Manage 2011; 47:983-991. [PMID: 21374090 DOI: 10.1007/s00267-011-9640-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Accepted: 02/05/2011] [Indexed: 05/30/2023]
Abstract
Three different systems of designating protected areas in a Mediterranean region in southeastern Spain were studied, referring to their effectiveness and efficiency for protecting both the breeding territories and the suitable habitat of a set of ten raptor species. Taking into consideration the varying degrees of endangerment of these species, a map of multispecies conservation values was also drawn up and superimposed on the three protected-area systems studied. In order to compare the levels of protection afforded by the three systems, we considered two indices that measured their relative effectiveness and efficiency. The effectiveness estimated the proportion of territories or optimal habitat protected by the networks while efficiency implicitly considered the area of each system (percentage of breeding territories or optimal habitat protected per 1% of land protected). Overall, our results showed that the most efficient system was that formed by the set of regional parks and reserves (17 protected breeding territories per 100 km²), although, given its small total area, it was by far the least effective (only protecting the 21% of the breeding territories of all species and 17% of the area of high conservation value). The systems formed by the Special Protection Areas (designated under the EU "Birds Directive") and by the Special Conservation Areas (designated under the EU "Habitats Directive") notably increased the percentages of protected territories of all species (61%) and area of high conservation value (57%), but their efficiency was not as high as expected in most cases. The overall level of protection was high for all species except for the Lesser Kestrel (Falco naumanni), an endangered falcon that inhabits pseudo-steppe and traditional agricultural habitats, which are clearly underrepresented in the protected-area network of the study region.
Collapse
Affiliation(s)
- María D Abellán
- Departamento de Ecología e Hidrología, Universidad de Murcia, Campus de Espinardo, 30100, Murcia, Spain
| | | | | | | | | |
Collapse
|
11
|
García-Fernández AJ, Calvo JF, Martínez-López E, María-Mojica P, Martínez JE. Raptor ecotoxicology in Spain: a review on persistent environmental contaminants. Ambio 2008; 37:432-439. [PMID: 18833796 DOI: 10.1579/0044-7447(2008)37[432:reisar]2.0.co;2] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Initial studies on the pressure from environmental contaminants on raptor populations in Spain date back to the 1980s, and they have been carried out from a range of viewpoints using a range of sentinel raptor species. However, there is no national monitoring scheme, and therefore the research carried out has been sporadic both spatially and temporally. The exposure to metals has not varied over time, except in the case of lead, whose concentration in eggs and tissues has diminished. In general, the concentrations of metals detected in raptor samples from Spain are generally low and not sufficient to produce toxic effects. Excepting DDT and DDE, most organochlorine-based pesticides in raptors from Spain have diminished over the last 2 decades. The concentrations of DDE found in the eggs of various species could in part explain problems in the reproductive success of raptors in Spain.
Collapse
Affiliation(s)
- Antonio J García-Fernández
- Department of Toxicology, Faculty of Veterinary Medicine, University of Murcia, Campus de Espinardo, Murcia, Spain.
| | | | | | | | | |
Collapse
|
12
|
Martínez-Lbpez E, María-Mojica P, Martínez JE, Calvo JF, Romero D, García-Fernández AJ. Cadmium in feathers of adults and blood of nestlings of three raptor species from a nonpolluted Mediterranean forest, southeastern Spain. Bull Environ Contam Toxicol 2005; 74:477-84. [PMID: 15903181 DOI: 10.1007/s00128-005-0610-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Affiliation(s)
- E Martínez-Lbpez
- Department of Toxicology, University of Murcia, Campus of Espinardo 30071, Murcia, Spain
| | | | | | | | | | | |
Collapse
|
13
|
Martínez-López E, Martínez JE, María-Mojica P, Peñalver J, Pulido M, Calvo JF, García-Fernández AJ. Lead in feathers and delta-aminolevulinic acid dehydratase activity in three raptor species from an unpolluted Mediterranean forest (Southeastern Spain). Arch Environ Contam Toxicol 2004; 47:270-275. [PMID: 15386153 DOI: 10.1007/s00244-004-3027-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This paper presents the levels of lead found in the feathers of adult and blood of nestlings of booted eagle (Hieraaetus pennatus), European buzzard ( Buteo buteo), and goshawk (Accipiter gentilis) sampled in the 1999 and 2000 breeding seasons in a Mediterranean forest of the Province of Murcia (Southeastern Spain) located far from potential sources of metal contamination. Levels of delta-aminolevulinic acid dehydratase activity (delta-ALAD) in blood were also measured in the nestlings. Lead concentrations ranged from 1.1 to 11.21 microg/dl in blood of nestlings and from 0.35 to 1.66 mg/kg d.w. in the feathers of their parents. A significant relationship was found between blood delta-ALAD and lead (rho = -568), showing a negative correlation with blood lead levels even at lead concentrations below 5 microg/dl. This fact suggests the usefulness of this enzymatic biomarker for low lead exposure in forest raptors. There were also positive relationships between the lead concentrations in blood of nestlings and those in feathers of their parents (rho = 0.817), suggesting the usefulness of feathers for biomonitoring environmental exposure to lead.
Collapse
Affiliation(s)
- E Martínez-López
- Department of Toxicology, University of Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | | | | | | | | | | | | |
Collapse
|
14
|
He W, Tuck-Muller CM, Martínez JE, Li S, Rowley ER, Wertelecki W. Molecular characterization of a ring chromosome 16 from a patient with bilateral cataracts. Am J Med Genet 2002; 107:12-7. [PMID: 11807861 DOI: 10.1002/ajmg.10091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A four-month-old white female, who was referred to us for genetic evaluation because of severe developmental delay, dysmorphic features, and bilateral cataracts, was found by routine cytogenetic analysis to have ring chromosome 16 in almost all cells analyzed. Ring chromosome 16 was confirmed and further delineated by fluorescence in situ hybridization (FISH). Breakpoints between loci D16S521 and KG8 on the short arm and D16S3121 and D16S303 on the long arm of chromosome 16 were determined by polymerase chain reaction (PCR) analysis. The deleted chromosome was of maternal origin. To our knowledge, this is the first case of ring chromosome 16 associated with bilateral cataracts. Comparison of previously reported cases with deletion of chromosome 16 and our case suggests the presence of cataract locus within 1 Mb of the terminus of 16q.
Collapse
Affiliation(s)
- Weigong He
- Department of Medical Genetics, University of South Alabama, Mobile, Alabama, USA
| | | | | | | | | | | |
Collapse
|
15
|
Martínez JE, Valderrama L, Gama V, Leiby DA, Saravia NG. Clonal diversity in the expression and stability of the metastatic capability of Leishmania guyanensis in the golden hamster. J Parasitol 2000; 86:792-9. [PMID: 10958458 DOI: 10.1645/0022-3395(2000)086[0792:cditea]2.0.co;2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Metastatic disease is a major concern of dermal leishmaniasis caused by Leishmania of the Viannia subgenus. The golden hamster provides an experimental model of systemic dissemination and cutaneous metastasis of Leishmania Viannia. We have exploited this model to examine the expression of parasite virulence in cloned populations derived from a strain of L. guyanensis previously shown to be highly metastatic in the hamster. Metastatic capacity manifested as dissemination throughout the lymphoid organs; cachexia and secondary cutaneous lesions were found to differ among clones, yielding a spectrum of virulence. The metastatic phenotype of clonal populations was stable over 5 sequential passages in hamsters. In addition, the low or high propensity to disseminate and produce cutaneous metastatic lesions was reproduced. Capacity to disseminate from the inoculation site was conserved following subcloning of metastatic clones that had been passaged in culture for several generations; clinical manifestations, cachexia, and cutaneous metastatic lesions were variably expressed. Dissemination of parasites and cachexia were significantly related (P = 0.004). Overall, cachexia was an earlier manifestation of dissemination than cutaneous metastases (P < 0.001). The reproducible expression of virulence phenotypes by discrete populations of Leishmania in the golden hamster provides an experimental model for clinically relevant expression of virulence in human leishmaniasis.
Collapse
Affiliation(s)
- J E Martínez
- Centro Internacional de Entrenamiento e Investigaciones Médicas, Cali, Valle, Colombia
| | | | | | | | | |
Collapse
|
16
|
Andersson HC, Frentz J, Martínez JE, Tuck-Muller CM, Bellizaire J. Adrenal insufficiency in Smith-Lemli-Opitz syndrome. Am J Med Genet 1999; 82:382-4. [PMID: 10069708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
We describe three unrelated patients with adrenal insufficiency and RSH or Smith-Lemli-Opitz syndrome (SLOS), a disorder due to deficient synthesis of cholesterol. These patients presented with hyponatremia, hyperkalemia, and decreased aldosterone-to-renin ratio, which is a sensitive measure of the renin-aldosterone axis. All patients had profound serum total cholesterol deficiency (14-31 mg/dl) and marked elevation of 7-dehydrocholesterol (10-45 mg/ dl). Two patients were newborn infants with 46, XY karyotypes and complete failure to masculinize; one of these patients also had cortisol deficiency. Both patients died within 10 days of birth of cardiopulmonary complications while on adrenal replacement therapy. The third patient diagnosed with SLOS at birth presented at age 7months with fever and diarrhea and was noted to have profound hyponatremia. This patient is maintaining normal serum electrolytes on mineralocorticoid replacement. We conclude that adrenal insufficiency may be a previously undetected and treatable manifestation in SLOS. We hypothesize that deficiency of cholesterol, an adrenal hormone precursor, may lead to insufficient synthesis of adrenal steroid hormones.
Collapse
Affiliation(s)
- H C Andersson
- Human Genetics Program, Hayward Genetics Center, Tulane University Medical School, New Orleans, Louisiana 70112, USA.
| | | | | | | | | |
Collapse
|
17
|
Martínez JE, Tuck-Muller CM, Gasparrini W, Li S, Wertelecki W. 1p microdeletion in sibs with minimal phenotypic manifestations. Am J Med Genet 1999; 82:107-9. [PMID: 9934971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
We report on two sibs with a paracentric inversion of chromosome 1 [inv(1)(p22.3p34.1)] and a small deletion of the same chromosome (p34.1-->p34.3). They presented with learning disabilities and disturbed conduct but lacked the more severe manifestations usually associated with autosomal chromosome deletion. Born to an alcoholic mother and later placed in foster care because of abuse and neglect, the behavior abnormalities they present are likely to be associated with their traumatic postnatal experience. Microscopic deletions without significant morphological phenotypic expression have been described but are rarely reported. Most reported cases of interstitial deletion of 1p had associated malformations and psychomotor retardation. These sibs may represent the first evidence that deletion of 1p34.1-->1p34.3 may have little impact on the phenotype.
Collapse
Affiliation(s)
- J E Martínez
- Department of Medical Genetics, University of South Alabama, College of Medicine, Mobile 36688-0002, USA
| | | | | | | | | |
Collapse
|
18
|
Li S, Tuck-Muller CM, Martínez JE, Rowley ER, Chen H, Wertelecki W. Prenatal detection of de novo duplication of the short arm of chromosome 18 confirmed by fluorescence in situ hybridization (FISH). Am J Med Genet 1998; 80:487-90. [PMID: 9880213 DOI: 10.1002/(sici)1096-8628(19981228)80:5<487::aid-ajmg9>3.0.co;2-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We present a patient with developmental delay, minor anomalies, and duplication 18p confirmed by fluorescence in situ hybridization with whole chromosome 18 painting probe (Oncor p5218). Our observation confirms the findings of other investigators that duplication 18p is not associated with major malformations.
Collapse
Affiliation(s)
- S Li
- Department of Medical Genetics, University of South Alabama, Mobile 36688-0002, USA.
| | | | | | | | | | | |
Collapse
|
19
|
Tuck-Muller CM, Chen H, Martínez JE, Shen CC, Li S, Kusyk C, Batista DA, Bhatnagar YM, Dowling E, Wertelecki W. Isodicentric Y chromosome: cytogenetic, molecular and clinical studies and review of the literature. Hum Genet 1995; 96:119-29. [PMID: 7607645 DOI: 10.1007/bf00214200] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Dicentrics are among the most common structural abnormalities of the human Y chromosome. Predicting the phenotypic consequences of different duplications and deletions of dicentric Y chromosomes is usually complicated by varying degrees of mosaicism (45,X cell lines), which may, in some cases, remain undetected. Molecular studies in patients with dicentric Y chromosomes have been few, and only two studies have attempted to determine the presence of SRY (the putative testis-determining factor gene). We report an 18-year-old female with short stature, amenorrhea, hirsutism, hypoplastic labia minora, and clitoromegaly who has a 45,X/46,X,idic(Y)(p11.32)/47,X,idic(Y)(p11.32),idic(Y) (p11.32) karyotype. Southern analysis using Y-specific probes (Y97, 2D6, 1F5, pY3.4) and polymerase chain reaction (PCR) analysis using primers for ZFY and SRY were positive for all loci tested, indicating that almost all of the Y chromosome was present. Our findings and an extensive review of the literature emphasize the importance of molecular analyses of abnormal Y chromosomes before any general conclusions can be reached concerning the relative effects of the Y-chromosome abnormality and mosaicism on sexual differentiation.
Collapse
Affiliation(s)
- C M Tuck-Muller
- Department of Medical Genetics, University of South Alabama, Mobile 36688, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Abstract
We describe a mother and daughter with typical cri du chat syndrome. Previous investigators have noted the lack of information about the reproductive fitness of patients with this disorder. This report demonstrates that females with cri du chat syndrome are fertile, can gestate and likewise deliver affected offspring, which has significant management and counseling implications.
Collapse
Affiliation(s)
- J E Martínez
- Department of Medical Genetics, University of South Alabama, Mobile 36688
| | | | | | | |
Collapse
|