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1.
Gynecol Obstet Fertil Senol ; 50(12): 753-761, 2022 12.
Artigo em Francês | MEDLINE | ID: mdl-36108917

RESUMO

OBJECTIVES: This study's primary objective was to analyse the personal experience of different ultrasonographers during the announcement of suspected foetal abnormalities, seen either in screening or diagnostic ultrasound. The secondary objectives aimed to explore the factors influencing the announcement of the foetal abnormality, whether they complicated or facilitated the consultation. These also comprised the analysis of the knowledge, practice and attitudes of the healthcare professionals as well as the different techniques used during the consultation. Finally, this study aimed to analyse the various tools and skills used by ultrasonographers to improve the quality of their announcement of the diagnosis. METHODS: This qualitative study was based on both the observation of consultations and the results of semi-structured interviews with ultrasonographers, in a maternity hospital in France. RESULTS: The results highlighted feelings of great discomfort for the ultrasonographers on discovering an abnormality on the scan. The different perceptions and practices regarding the announcement of a diagnosis varied between screening ultrasonographers and specialist doctors. The uncertainty of foetal prognosis seemed to complicate the announcement for specialist doctors. Qualities that made the communication of the diagnosis easier included the ultrasonographer's availability and their attitude. Although professional experience was considered a very powerful skill, training for the communication of a diagnosis accelerates the development of good medical practice. CONCLUSIONS: The announcement of suspected foetal abnormalities is a difficult exercice, which impacts the ultrasonographer's personal experience and his attitude. Some professional practices are to be encouraged while others are to be put under question. A trust-based relationship between the healthcare professional and the patient is partly reinforced by the quality of the announcement and its follow-up, as well as the healthcare professional's thoroughness and humanity.


Assuntos
Comunicação , Pessoal de Saúde , Humanos , Feminino , Gravidez , Pesquisa Qualitativa , Atitude , Ultrassonografia
2.
Eur Ann Otorhinolaryngol Head Neck Dis ; 133(3): 161-5, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26679231

RESUMO

OBJECTIVES: The present study assessed the interest of a contralateral hearing aid (HA) in adult cochlear implant (CI) bearers. MATERIAL AND METHODS: The study recruited 10 French-speaking adult HA bearers with postlingual bilateral hearing loss, fitted for at least 2 years with a unilateral CI after loss of benefit from HA in one ear but continuing to use their contralateral HA: 4 male, 6 female; mean age, 58 years. All had regularly used bilateral HAs prior to CI. Audiometric assessment comprised: (1) individual ear hearing assessment on pure-tone audiometry and speech discrimination; and (2) free-field testing without aid, with CI only, with HA only and with CI plus HA, on pure-tone audiometry and speech discrimination with quiet background and on speech discrimination in noise. RESULTS: Speech discrimination was significantly improved in the bimodal condition (CI plus HA) as compared to CI alone, on all tests. In quiet, discrimination for disyllabic words was>50% in 7 cases with HA alone, in 2 cases with CI alone and in 1 case in with HA+CI. Under 0dB signal-to-noise ratio, discrimination was>50% in 1 case with HA alone, in 3 cases with CI alone and in 6 cases with HA+CI. CONCLUSION: The present results showed benefit in auditory perception in quiet and in noise with bimodal stimulation. When there is residual hearing in the non-implanted ear, a HA should be fitted; and in progressive bilateral hearing loss, CI should be suggested when HA benefit decreases in one ear.


Assuntos
Implantes Cocleares , Auxiliares de Audição , Perda Auditiva Bilateral/terapia , Adulto , Idoso , Percepção Auditiva , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes de Discriminação da Fala
3.
Bioelectrochemistry ; 106(Pt A): 133-40, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26026839

RESUMO

The long-term operation of efficient bioanodes supplied with waste-derived organics is a key challenge for using bioelectrochemical systems as a waste valorization technology. Here, we describe a simple procedure that allowed maintaining highly efficient bioanodes supplied with biowaste. Current densities up to 14.8 A/m(2) were obtained with more than 40% of the electrons introduced as biowaste being recovered in the electrical circuit. Three fed-batch reactors were started at different biowaste loading rates. A decline of coulombic efficiencies between 22 and 31% was recorded depending on the reactor over the first 3 weeks of operation. A renewal procedure of the anode was thereafter implemented, which led to a recovery of initial performances. The second and the third renewal, allowed maintaining stable high level performances with coulombic efficiency of approximately 40% over at least 3 weeks. Electroactive biofilm dynamics were monitored using 16S rRNA-gene amplicon sequencing. Retrieved sequences were dominated by Geobacter sulfurreducens-related reads (37% of total sequences), which proportion however varied along the experiment. Interestingly, sequences affiliated to various Bacteroidetes groups were also abundant, suggesting an adaptation of the anodic biofilm to the degradation of biowaste through metabolic interactions between microbial community members.


Assuntos
Fontes de Energia Bioelétrica/microbiologia , Condutividade Elétrica , Geobacter/metabolismo , Resíduos , Eletroquímica , Eletrodos , Geobacter/genética , RNA Ribossômico 16S/genética , Análise de Sequência de RNA
4.
Cir Pediatr ; 27(2): 68-73, 2014 Apr 15.
Artigo em Espanhol | MEDLINE | ID: mdl-27775274

RESUMO

OBJECTIVES: A common indication for splenectomy in children is hematologic diseases. Indications, clinical course and complications of laparoscopic splenectomy are shown; factors associated with open conversion are analyzed. MATERIAL AND METHODS: Retrospective, longitudinal, descriptive series of laparoscopic splenectomy during 11 years and its long-term follow-up. RESULTS: We studied 88 laparoscopic splenectomies. Average age was 9 years and weight 30 kg. The indication was hemolytic anemia in 77% and thrombocytopenic purpura in 18%. Eleven percent was operated with severe thrombocytopenia and two patients urgently; cholecystectomy was done in 13%. The median surgical time was 180 minutes and bleeding 100 ml. Conversion rate was 5.7% mainly because of persistent bleeding, being risk bleeding greater than 300 ml and the need for red cell concentrate transfusion. The median length of stay was 3 days, longer in those affected by purpura. Three patients developed pneumonia and one, intra-abdominal abscess. Follow-up was 3.6 years average with two late complications. Treatment response was cure in 72%, improvement in 11.3% and failure in 6.8%. DISCUSSION: It is feasible to operate patients under 5 years of age and patients with anemia or thrombocytopenia at the time of surgery without major problems. The conversion rate is low and risk factors for conversion are bleeding more than 300 ml and needing to transfuse erythrocyte concentrate.


INTRODUCCION: Una indicación frecuente de esplenectomía en niños son las enfermedades hematológicas. Se muestran las indicaciones, curso clínico y complicaciones en niños con esplenectomía laparoscópica y se analizan los factores de conversión a cirugía abierta. MATERIAL Y METODOS: Estudio de cohorte, longitudinal, descriptivo de esplenectomía laparoscópica en un periodo de 11 años y su seguimiento a largo plazo. RESULTADOS: Se analizaron 88 esplenectomías laparoscópicas. Edad promedio 9 años y peso 30 kg. La indicación fue anemia hemolítica en el 77% y púrpura trombocitopénica en el 18%. El 11% se operó con trombocitopenia grave y dos pacientes en forma urgente, se hizo colecistectomía en el 13%. La mediana de tiempo quirúrgico fue de 180 minutos con sangrado de 100 ml. Se convirtió el 5,7% por sangrado persistente, siendo los factores de riesgo el sangrado mayor a 300 ml y la necesidad de transfusión de concentrado eritrocitario. La mediana de estancia fue 3 días, superior en los pacientes afectos de púrpura. Tres pacientes desarrollaron neumonía y uno, absceso intra-abdominal. El seguimiento promedio es de 3,6 años con dos complicaciones tardías. Hubo curación con normalización del hemograma y sin necesidad de transfusiones en el 72%, mejoría con necesidad de transfusiones ocasionales en el 11,3% y fallo con requerimientos transfusionales iguales a los preoperatorios en el 6,8% de los pacientes. DISCUSION: Es posible operar a pacientes menores de 5 años y a pacientes con anemia o trombocitopenia en el momento de la cirugía, sin mayor complicación. La tasa de reconversión es baja y los factores de riesgo para reconversión son un sangrado mayor de 300 ml y la necesidad de transfundir concentrado de hematíes.

5.
J Evol Biol ; 27(9): 1956-64, 2014 09.
Artigo em Inglês | MEDLINE | ID: mdl-25040065

RESUMO

A fluctuating environment may be perceived as a composition of different environments, or as an environment per se, in which it is the fluctuation itself that poses a selection pressure. If so, then organisms may adapt to this alternation. We tested this using experimental populations of spider mites that have been evolving for 45 generations in a homogeneous environment (pepper or tomato plants), or in a heterogeneous environment composed of an alternation of these two plants approximately at each generation. The performance (daily oviposition rate and juvenile survival) of individuals from these populations was tested in each of the homogeneous environments, and in two alternating environments, one every 3 days and the other between generations. To discriminate between potential genetic interactions between alleles conferring adaptation to each host plant and environmental effects of evolving in a fluctuating environment, we compared the performance of all lines with that of a cross between tomato and pepper lines. As a control, two lines within each selection regime were also crossed. We found that crosses between alternating lines and between pepper and tomato lines performed worse than crosses between lines evolving in homogeneous environments when tested in that environment. In contrast, alternating lines performed either better or similarly to lines evolving in homogeneous environments when tested in a fluctuating environment. Our results suggest that fluctuating environments are more than the juxtaposition of two environments. Hence, tests for adaptation of organisms evolving in such environments should be carried out in fluctuating conditions.


Assuntos
Capsicum , Solanum lycopersicum , Tetranychidae/fisiologia , Adaptação Fisiológica , Animais , Meio Ambiente , Herbivoria , Especificidade de Hospedeiro , Oviposição , Sobrevida
6.
Cir. pediátr ; 27(2): 68-73, abr. 2014. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-127339

RESUMO

Introducción. Una indicación frecuente de esplenectomía en niños son las enfermedades hematológicas. Se muestran las indicaciones, curso clínico y complicaciones en niños con esplenectomía laparoscópica y se analizan los factores de conversión a cirugía abierta. Material y métodos. Estudio de cohorte, longitudinal, descriptivo de esplenectomía laparoscópica en un periodo de 11 años y su seguimiento a largo plazo. Resultados. Se analizaron 88 esplenectomías laparoscópicas. Edad promedio 9 años y peso 30 kg. La indicación fue anemia hemolítica en el 77% y púrpura trombocitopénica en el 18%. El 11% se operó con trombocitopenia grave y dos pacientes en forma urgente, se hizo colecistectomía en el 13%. La mediana de tiempo quirúrgico fue de 180 minutos con sangrado de 100 ml. Se convirtió el 5,7% por sangrado persistente, siendo los factores de riesgo el sangrado mayor a 300 ml y la necesidad de transfusión de concentrado eritrocitario. La mediana de estancia fue 3 días, superior en los pacientes afectos de púrpura. Tres pacientes desarrollaron neumonía y uno, absceso intra-abdominal. El seguimiento promedio es de 3,6 años con dos complicaciones tardías. Hubo curación con normalización del hemograma y sin necesidad de transfusiones en el 72%, mejoría con necesidad de transfusiones ocasionales en el 11,3% y fallo con requerimientos transfusionales iguales a los preoperatorios en el 6,8% de los pacientes. Discusión. Es posible operar a pacientes menores de 5 años y a pacientes con anemia o trombocitopenia en el momento de la cirugía, sin mayor complicación. La tasa de reconversión es baja y los factores de riesgo para reconversión son un sangrado mayor de 300 ml y la necesidad de transfundir concentrado de hematíes


Objectives. A common indication for splenectomy in children is hematologic diseases. Indications, clinical course and complications of laparoscopic splenectomy are shown; factors associated with open conversion are analyzed. Methods. Retrospective, longitudinal, descriptive series of laparoscopic splenectomy during 11 years and its long-term follow-up. Results. We studied 88 laparoscopic splenectomies. Average age was 9 years and weight 30 kg. The indication was hemolytic anemia in 77% and thrombocytopenic purpura in 18%. Eleven percent was operated with severe thrombocytopenia and two patients urgently; cholecystectomy was done in 13%. The median surgical time was 180 minutes and bleeding 100 ml. Conversion rate was 5.7% mainly because of persistent bleeding, being risk bleeding greater than 300 ml and the need for red cell concentrate transfusion. The median length of stay was 3 days, longer in those affected by purpura. Three patients developed pneumonia and one, intra-abdominal abscess. Follow-up was 3.6 years average with two late complications. Treatment response was cure in 72%, improvement in 11.3% and failure in 6.8%.Discussion. It is feasible to operate patients under 5 years of age and patients with anemia or thrombocytopenia at the time of surgery without major problems. The conversion rate is low and risk factors for conversion are bleeding more than 300 ml and needing to transfuse erythrocyte concentrate


Assuntos
Humanos , Masculino , Feminino , Lactente , Pré-Escolar , Criança , Esplenectomia/métodos , Laparoscopia/métodos , Anemia Hemolítica/cirurgia , Púrpura Trombocitopênica/cirurgia , Conversão para Cirurgia Aberta/estatística & dados numéricos , Estudos Longitudinais , Trombocitopenia/epidemiologia , Fatores de Risco , Complicações Pós-Operatórias/epidemiologia
7.
Lett Appl Microbiol ; 57(5): 385-92, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24006923

RESUMO

In order to assess the putative toxigenic risk associated with the presence of fungal strains in shellfish-farming areas, Penicillium strains were isolated from bivalve molluscs and from the surrounding environment, and the influence of the sample origin on the cytotoxicity of the extracts was evaluated. Extracts obtained from shellfish-derived Penicillia exhibited higher cytotoxicity than the others. Ten of these strains were grown on various media including a medium based on mussel extract (Mytilus edulis), mussel flesh-based medium (MES), to study the influence of the mussel flesh on the production of cytotoxic compounds. The MES host-derived medium was created substituting the yeast extract of YES medium by an aqueous extract of mussel tissues, with other constituent identical to YES medium. When shellfish-derived strains of fungi were grown on MES medium, extracts were found to be more cytotoxic than on the YES medium for some of the strains. HPLC-UV/DAD-MS/MS dereplication of extracts from Penicillium marinum and P. restrictum strains grown on MES medium showed the enhancement of the production of some cytotoxic compounds. The mycotoxin patulin was detected in some P. antarcticum extracts, and its presence seemed to be related to their cytotoxicity. Thus, the enhancement of the toxicity of extracts obtained from shellfish-derived Penicillium strains grown on a host-derived medium, and the production of metabolites such as patulin suggests that a survey of mycotoxins in edible shellfish should be considered.


Assuntos
Micotoxinas/análise , Penicillium/química , Frutos do Mar/microbiologia , Animais , Cromatografia Líquida de Alta Pressão , Micotoxinas/metabolismo , Patulina/metabolismo , Penicillium/classificação , Penicillium/isolamento & purificação , Penicillium/metabolismo , Espectrometria de Massas em Tandem
8.
Rev Mal Respir ; 29(7): 878-88, 2012 Sep.
Artigo em Francês | MEDLINE | ID: mdl-22980548

RESUMO

INTRODUCTION: How do residents, specialists or general practitioners advise patients who are smokers when they are admitted to hospital? Do they assess their smoking status? How much do they know about smoking cessation? Do they know the tests essential to allow an effective approach to smokers? METHODS: One hundred and forty-nine residents were approached over a nine-month period by three pharmacy students. The questionnaire addressed the assessment of smokers and the possible management of their quitting process: the average time devoted to tobacco cessation, knowledge of "brief smoking cessation advice", assessment of nicotine addiction and motivation to quit as well as detection of withdrawal symptoms, knowledge of the list of nicotine substitutes prescribed by the Tours CHRU, and referral of smokers to a smoking cessation specialist. RESULTS: One hundred and thirty-four (90%) residents out of the 149 who were questioned reported that they tried to assess the smoking status of their patients. The average time devoted to tobacco in a consultation was 4 minutes. Seventy-seven percent of those concerned knew what constituted "brief smoking cessation" and 59% reported delivering it regularly. The Fagerström test was known by 96% of them but only 13% of residents used it. With the exception of two residents in pneumonology, the Q. MAT, an assessment test of motivation to quit smoking, was unknown to them. Nicotine withdrawal symptoms were well recognised. Sixty-nine percent of them knew about the prescription list and 75% of them prescribed nicotine substitutes. CONCLUSIONS: The approach to the smoking patient varied according to the resident's speciality. Smoking assessment was done systematically by most but did not always lead to an assessment of patients' motivation to stop smoking or to an offer of assistance with quitting. This observation led to the development of a tool to improve the approach to smokers, available within the CHRU intranet covering the principles of the management of the tobacco quitting process; informing, helping to stop feeling guilty, assessing the motivation to quit (Q.MAT), assessing the smoker's addiction (Fagerström test), offering assistance and a list of nicotine substitutes.


Assuntos
Padrões de Prática Médica , Abandono do Hábito de Fumar , Fumar/terapia , Adulto , Feminino , Hospitais Universitários , Humanos , Internato e Residência , Masculino , Motivação , Inquéritos e Questionários
9.
J Evol Biol ; 24(12): 2653-62, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21955226

RESUMO

Detecting adaptation involves comparing the performance of populations evolving in different environments. This detection may be confounded by effects due to the environment experienced by organisms prior to the test. We tested whether such confounding effects occur, using spider-mite selection lines on two novel hosts and one ancestral host, after 15 generations of selection. Mites were either sampled directly from the selection lines or subjected to a common juvenile or to a common maternal environment, mimicking the most frequent environmental manipulations. These environments strongly affected all life-history traits. Moreover, the detection of adaptation and correlated responses on the ancestral host was inconsistent among environments in almost 20% of the cases. Indeed, we did not detect responses unambiguously for any life-history trait. This inconsistency was due to differential environmental effects on lines from different selection regimes. Therefore, the detection of adaptation requires a careful control of these environmental effects.


Assuntos
Adaptação Fisiológica , Meio Ambiente , Tetranychidae/fisiologia , Animais , Capsicum/parasitologia , Cucumis sativus/parasitologia , Feminino , Especificidade de Hospedeiro , Estágios do Ciclo de Vida , Longevidade , Solanum lycopersicum/parasitologia , Oviposição , Fenótipo , Doenças das Plantas/parasitologia , Análise de Sobrevida , Tetranychidae/crescimento & desenvolvimento , Fatores de Tempo
10.
Clin Exp Immunol ; 162(3): 537-42, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20964645

RESUMO

Pancreas transplantation is an option to achieve better metabolic control and decrease chronic complications in patients with diabetes. Xenotransplantation becomes an important alternative. In this study, we show the clinical outcome of patients with type 1 diabetes transplanted with neonatal pig islets without immunosuppression. In a longitudinal study of 23 patients with type 1 diabetes, who received porcine islets between 2000 and 2004, we registered demographic and clinical characteristics every 3 months and chronic complications evaluation yearly. Porcine C-peptide was measured in urine samples under basal conditions and after stimulation with l-arginine. More than 50% were female, median current age was 20·8 years, median diabetes duration at transplantation 5·5 years, median current diabetes duration 11 years and median time post-transplantation 5·7 years. Their media of glycosylated haemoglobin reduced significantly after the first transplantation. Insulin doses remain with a reduction greater than 33% in more than 50% of the patients. Before transplantation, 14 of the 21 patients presented mild chronic complications and currently only two patients presented these complications. Porcine C-peptide was present in all urine samples under basal conditions and increased post-stimulation with l-arginine. These patients achieved an excellent metabolic control after the first transplantation. This could explain, as well as the remaining function of transplanted cells, the low frequency of chronic complications compared to patients with similar diabetes duration and age.


Assuntos
Complicações do Diabetes/prevenção & controle , Diabetes Mellitus Tipo 1/terapia , Transplante das Ilhotas Pancreáticas , Adolescente , Animais , Animais Recém-Nascidos , Peptídeo C/urina , Diabetes Mellitus Tipo 1/diagnóstico , Diabetes Mellitus Tipo 1/fisiopatologia , Progressão da Doença , Intervalo Livre de Doença , Feminino , Seguimentos , Hemoglobinas Glicadas/metabolismo , Humanos , Masculino , Suínos , Fatores de Tempo , Transplante Heterólogo , Adulto Jovem
11.
J Insect Sci ; 10: 133, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20883130

RESUMO

The Calliptamus genus (Orthoptera: Acrididae) includes locust and grasshopper species, some of which have a high economic impact. Using an enriched methodology, 10 microsatellite markers have been developed from two species, Calliptamus italicus and Calliptamus barbarus. These polymorphic markers were tested on different populations of three Calliptamus species: C. italicus, C. barbarus, C. wattenwylianus. Two markers were amplified on the three species, as well as four on C. barbarus and two on C. italicus. In each species, 9 to 23 alleles per locus were observed. These molecular markers might prove to be a new and interesting tool for Calliptamus population genetics and dispersion studies.


Assuntos
Gafanhotos/genética , Repetições de Microssatélites , Animais , Biblioteca Gênica , Desequilíbrio de Ligação , Polimorfismo Genético
12.
Transplant Proc ; 42(6): 2365-8, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20692481

RESUMO

BACKGROUND: Anatomic and functional disorders of the lower urinary tract represent up to 40% of the causes of renal failure in children. Several centers avoid renal transplantation in these patients because of the high risk of complications and lower graft survival. The aim of this work was to determine the frequency of urinary tract abnormalities (UTAs) among our pediatric series, and to compare the frequency of complications, function, and long-term graft survival among patients without versus with UTA. METHODS: This single-center, retrospective study compared outcomes between pediatric recipients with versus without UTA. We analyzed demographic features, etiology, pretransplant protocol, urinary tract rehabilitation, incidence of complications, rejection events, as well as graft function and survival. RESULTS: Among 328 pediatric cases performed between 1998 and 2008, we excluded nine patients due to incomplete medical records, analyzing 319 procedures in 312 patients. Sixty-seven patients (21%) had UTA. The average age, weight, and height at the time of grafting were significantly lower in the urologic group: 11.1 versus 12.6 years, 28.8 versus 34.4 kg; 125.4 versus 138.4 cm, respectively. There were significantly higher frequencies of a transperitoneal approach and vena cavae and aortic anastomoses among patients with UTA (P < .001), posing a greater technical challenge in this population. No differences in creatinine levels were observed at 0.5, 1, 2, 5, and 10 years: 1.3 versus 1.6 at 5 years, and 1.4 versus 1.5 at 8 years. Urologic complications, including urinary tract infections (UTIs), occurred among 80.6% of patients with UTA versus 42.1% in the non-UTA group (P < .001). UTIs appeared predominantly in patients with UTA (62.7% vs 35.3%, P < .001), representing a 2.7-fold risk compared with those children transplanted for other reasons. Rejection incidence was similar in both groups (49.8%). There was no significant difference in 5-y (89.8% vs 85%) or 10-year (83% vs 67%) graft survivals between the groups (P = .162). CONCLUSION: Our results demonstrated that with proper interdisciplinary care, graft and patient survivals of pediatric recipients with UTAs were not affected; therefore, these patients should not be rejected for transplantation.


Assuntos
Transplante de Rim , Sistema Urinário/anormalidades , Doenças Urológicas/complicações , Criança , Contraindicações , Creatinina/sangue , Rejeição de Enxerto/epidemiologia , Sobrevivência de Enxerto , Humanos , Testes de Função Renal , Transplante de Rim/efeitos adversos , Transplante de Rim/mortalidade , Complicações Pós-Operatórias/classificação , Complicações Pós-Operatórias/epidemiologia , Insuficiência Renal/etiologia , Reoperação/estatística & dados numéricos , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento , Doenças Urológicas/cirurgia
13.
Bull Entomol Res ; 100(6): 701-6, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20504385

RESUMO

Definition of the genus Calliptamus (Orthoptera: Acrididae) has generated many taxonomic debates. Even now, the existence of different geographical morphs hinders species determination, particularly as concerns females and larvae. Some of these species are observed in southern France and are recognized as potential pests. To circumvent problems of species identification in ecological surveys, we developed a single multiplex PCR method based on mitochondrial Cytochrome Oxydase I diagnostic polymorphisms to differentiate between the four species, Calliptamus italicus, C. wattenwylianus, C. siciliae and C. barbarus, in southern regions of France.


Assuntos
Gafanhotos/classificação , Gafanhotos/genética , Reação em Cadeia da Polimerase , Animais , Feminino , França , Masculino , Dados de Sequência Molecular , Sensibilidade e Especificidade , Especificidade da Espécie
14.
Clin Transplant ; 21(3): 352-7, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17488384

RESUMO

In order to alleviate the shortage of human donors, the use of porcine islets of Langerhans for xenotransplantation in diabetic patients has been proposed as a solution. To overcome rejection, we have developed a procedure for protecting the islets by combining them with Sertoli cells and placing them in a novel subcutaneous device, that generates an autologous collagen covering. A type 1 diabetic woman was closely monitored for 10 months, and then transplanted in two devices with two months of difference and a third time after 22 months. Here we present a three-yr follow-up. The close monitoring induced a rapid decrease in exogenous insulin requirements, which stabilized between 19 and 28 IU/d for nine months. After transplantation, the requirements reduced further to below 6 IU/d and for some weeks she was insulin free. Glycosylated hemoglobin levels decreased concomitantly. Porcine insulin could be detected in the serum after a glucose challenge and insulin positive cells inside a removed device after two yr. No complications have arisen and no porcine endogenous retrovirus infection has been detected through PCR and RT-PCR. This case demonstrates the feasibility of using the xenotransplantation of porcine cells to alleviate metabolic complications and insulin requirements in type 1 diabetic patients.


Assuntos
Diabetes Mellitus Tipo 1/cirurgia , Transplante das Ilhotas Pancreáticas/métodos , Transplante Heterólogo , Adolescente , Animais , Hormônio Antimülleriano , Feminino , Seguimentos , Teste de Tolerância a Glucose , Hemoglobinas Glicadas/análise , Glicoproteínas/análise , Humanos , Imuno-Histoquímica , Insulina/administração & dosagem , Suínos , Hormônios Testiculares/análise
15.
Transplant Proc ; 37(2): 1201-2, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15848668

RESUMO

Orthotopic liver transplantation (OLT) has been very difficult to develop in Mexico and for many years its occurrence was anecdotal. This report presents the results of a pediatric liver transplant program, analyzing the variables that affect outcomes. Between June 1998 and March 2004, 35 OLT were performed in 34 recipients including 80% cadaveric whole-organ grafts and 20% segmental grafts, with 11% from cadaveric and 9% from living donors. Most of the recipients were infants or toddlers weighing less than 15 kg. There was only 1 case of arterial thrombosis (2.8%); the graft was saved with a Kasai procedure. Biliary complications were present in 22% of cases, all resolved with reoperations. Posttransplant cytomegalovirus infection or reactivation (28%), acute rejection (25%), or posttransplant lymphoproliferative disorders (5.7%) were not a cause of graft or patient loss. Overall, 1- and 5-year patient survival rates are 77.1% and 74.2%, respectively; however, when the 1998-2000 cohort was compared with the 2001-2004 cohort, there was a significant difference in survival (P = .004). The 1-year patient survival for the later group is 91.6%. We performed the first successful living donor liver transplantation and the first simultaneous liver-kidney transplantation in a child in our country. Our results demonstrate that pediatric liver transplantation is a feasible undertaking in Mexico, with survival rates comparable to those of foreign centers.


Assuntos
Transplante de Fígado/estatística & dados numéricos , Cadáver , Criança , Humanos , Transplante de Fígado/mortalidade , Doadores Vivos , México , Estudos Retrospectivos , Análise de Sobrevida , Fatores de Tempo , Doadores de Tecidos
16.
J Pediatr Surg ; 36(7): 1000-3, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11431764

RESUMO

PURPOSE: The aim of this study was to compare the incidence of surgical complications (duodenal perforation, postoperative vomiting, wound infection or dehiscence, incisional hernia) between 2 different surgical techniques for the resolution of hypertrophic pyloric stenosis in children. METHODS: A clinically controlled, randomized study with follow-up from 24 to 36 months was conducted. One hundred children between 15 days and 2 months old, who underwent surgical resolution of hypertrophic pyloric stenosis, were put randomly into 2 groups: I, pyloric traumamyoplasty (n = 43); II, Fredet-Ramstedt pyloromyotomy (n = 57). Both groups were controlled for the main demographic variables. Postoperative follow-up was blind for the surgical team. Statistical analysis was done with simple frequencies, percentages, Student's t test, and chi(2). RESULTS: There was not a single case of duodenal perforation, incomplete pyloromyotomy, wound infection, dehiscence, or incisional hernia in any group (P value, not significant). Postoperative emesis was present in 8 patients, uniformly distributed between groups. The operating room time for traumamyoplasty was 39.3 +/- 16.4 minutes versus 54 +/- 16.4 minutes for pyloromyotomy (P =.0003). CONCLUSIONS: This controlled study proves that traumamyoplasty is a simple procedure, quicker to perform, and as safe as pyloromyotomy for the treatment of infantile hypertrophic pyloric stenosis in children. For these reasons, the authors believe it should be considered as an alternative.


Assuntos
Complicações Pós-Operatórias , Estenose Pilórica/cirurgia , Piloro/cirurgia , Feminino , Humanos , Hipertrofia , Lactente , Recém-Nascido , Masculino
18.
J Pediatr Surg ; 33(12): 1757-9, 1998 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9869045

RESUMO

PURPOSE: The aim of this study was to compare the incidence of surgical complications between two different surgical techniques for intestinal anastomosis in children. METHODS: This was a clinically controlled, randomized study with blind follow-up from 18 to 36 months performed at the Reference Government Hospital in Mexico City. Eighty-six children required intestinal anastomosis, ages ranged between 1 month and 16 years, with emergency or elective surgery. Anastomoses of duodenum, rectum, with enteroplasty or protected with a proximal stoma were excluded. Two randomized groups were formed: (1) anastomosis with one layer of suture (Gambee stitches) and (2) with two layers of suture (first with Connel-Mayo stitches then with Lembert). Both groups were controlled in the principal variables without differences, and the follow-up concerning postoperative recovery was blind for the surgical team. RESULTS: Forty-two cases in group 1 and 44 in group 2 were compared. Intestinal dehiscence was found in 5 of 86 (5.8%), two from group I and three from group II (P value, not significant). Surgical time for anastomosis with one layer was an average of 26 minutes versus 43 minutes with two layers (P<.001). There were no stenoses within the follow-up period. CONCLUSIONS: This study proves that intestinal anastomosis with one layer of suture is as safe as anastomosis with two layers in children, and the time spent for completion of the procedure is significantly less with one plane of suture. For those reasons, it is the method of choice for intestinal anastomosis in children.


Assuntos
Anastomose Cirúrgica/métodos , Intestino Delgado/cirurgia , Adolescente , Criança , Pré-Escolar , Humanos , Lactente , Recém-Nascido , Deiscência da Ferida Operatória , Técnicas de Sutura
19.
Mycoses ; 40(5-6): 175-7, 1997 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-9476484

RESUMO

Fungal cells were observed infiltrating the submucosal margins of an acutely perforated gastric ulceration in an apparently immunocompetent 3-year-old girl. Perforation had occurred 24 h after hospital admission because of pain and vomiting. Colonies of Candida tropicalis were grown from peritoneal fluid and blood cultures. After surgical repair and a 30-day treatment with amphotericin B at a daily dose of 1 mg kg-1 body weight, the child was discharged in good health. No further infections have occurred in the 3 years since treatment.


Assuntos
Candidíase/complicações , Ruptura Gástrica/complicações , Úlcera Gástrica/complicações , Anfotericina B/uso terapêutico , Antifúngicos/uso terapêutico , Candidíase/terapia , Pré-Escolar , Serviço Hospitalar de Emergência , Feminino , Humanos , Imunocompetência , Masculino , Dor , Ruptura Espontânea/complicações , Ruptura Espontânea/microbiologia , Ruptura Espontânea/terapia , Ruptura Gástrica/microbiologia , Ruptura Gástrica/terapia , Úlcera Gástrica/microbiologia , Úlcera Gástrica/terapia , Vômito
20.
Bol Med Hosp Infant Mex ; 47(8): 586-8, 1990 Aug.
Artigo em Espanhol | MEDLINE | ID: mdl-2124128

RESUMO

The congenital or acquired variety of esophageal diverticulum is a rare childhood disease. Reported is a case-study which deals with a five year old patient who arrived at our hospital complaining of a constricture at the cricopharyngeal level. A month later he returned to the hospital with dysphasia and regurgitation; the X-rays and endoscopic diagnosis showed stenosis of the esophagus and the presence of an esophageal diverticulum. Esophageal dilatations were carried out until an acceptable esophageal diameter was reached. Later on, the surgical removal of the diverticulum was performed without any complications. The histopathological study showed the congenital nature of the diverticulum. The patient's recovery went well and is currently considered as cured.


Assuntos
Divertículo Esofágico/congênito , Pré-Escolar , Divertículo Esofágico/diagnóstico por imagem , Divertículo Esofágico/cirurgia , Feminino , Humanos , Radiografia
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