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1.
J Heart Lung Transplant ; 43(8): 1199-1234, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38878021

RESUMO

Life expectancy of patients with a durable, continuous-flow left ventricular assist device (CF-LVAD) continues to increase. Despite significant improvements in the delivery of care for patients with these devices, hemocompatability-related adverse events (HRAEs) are still a concern and contribute to significant morbility and mortality when they occur. As such, dissemination of current best evidence and practices is of critical importance. This ISHLT Consensus Statement is a summative assessment of the current literature on prevention and management of HRAEs through optimal management of oral anticoagulant and antiplatelet medications, parenteral anticoagulant medications, management of patients at high risk for HRAEs and those experiencing thrombotic or bleeding events, and device management outside of antithrombotic medications. This document is intended to assist clinicians caring for patients with a CF-LVAD provide the best care possible with respect to prevention and management of these events.


Assuntos
Consenso , Coração Auxiliar , Coração Auxiliar/efeitos adversos , Humanos , Anticoagulantes/uso terapêutico , Insuficiência Cardíaca/terapia , Insuficiência Cardíaca/cirurgia , Trombose/prevenção & controle , Trombose/etiologia , Hemorragia/prevenção & controle , Inibidores da Agregação Plaquetária/uso terapêutico
2.
J Eur Acad Dermatol Venereol ; 38(3): 602-612, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38041562

RESUMO

BACKGROUND: Strategies for the control of scabies should be adapted to local settings. Traditional communities in French Guiana have non-Western conceptions of disease and health. OBJECTIVES: The objectives for this study were to explore knowledge, attitudes and practices to identify potential factors associated with the failure of scabies treatment in these communities. METHODS: Patients with a clinical diagnosis of scabies, seen at either the Cayenne Hospital or one of 13 health centres between 01 April 2021 and 31 August 2021, were included as participants, and were seen again after 6 weeks to check for persistence of lesions. Factors associated with treatment failure were looked for both at inclusion and at 6 weeks. Semi-structured interviews were conducted with a diversified subsample of participants. RESULTS: In total, 164 participants were included in the quantitative component, and 21 were interviewed for the qualitative component. Declaring that the second treatment dose had been taken was associated with therapeutic success. Western treatments were not always affordable. Better adherence was observed with topical treatments than with oral ivermectin, whereas permethrin monotherapy was associated with failure. Scabies-associated stigma was high among Amerindians and Haitians but absent in Ndjuka Maroons. Participants reported environmental disinfection as being very complex. CONCLUSIONS: The treatment of scabies in traditional Guianan communities may vary depending on local perceptions of galenic formulations, disease-associated stigma and differences in access to health care. These factors should be taken into account when devising strategies for the control of scabies aimed at traditional communities living in remote areas, and migrant populations.


Assuntos
Indígenas Sul-Americanos , Escabiose , Humanos , Escabiose/tratamento farmacológico , Guiana Francesa , Ivermectina , Permetrina
4.
Prog Urol ; 32(3): 189-197, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34656450

RESUMO

OBJECTIVE: To compare the efficiency (micturition symptoms, continence, erection) and safety of Holmium Laser Enucleation of the Prostate (HoLEP) with a single composite score (the Hexafecta score) one year postprocedure. PATIENTS AND METHODS: We conducted a single-center retrospective study including all patients who had undergone HoLEP for the treatment of benign prostate hyperplasia (BPH) between May 2013 and August 2017. Data were obtained preoperatively and at the 6- and 12-month visits. We also reported all 90-day complications. The Hexafecta score included 6 criteria: peak urine flow of at least 15ml/s, 30% reduction in International Prostate Symptoms Score (IPSS) score, quality of life via the IPSS less than 2, no incontinence (International Consultation Incontinence Questionnaire), no significant change in erectile function (International Index of Erectile Function), and no grade III or more complications according to the Clavien-Dindo classification. RESULTS: Two hundred thirty-five patients were included, of whom 197 (83.8%) completed the 12-month visit. Complete data were available to assess the Hexafecta score for 178 of them (75.7%). Most of the missing data were for uroflowmetry and the erectile function assessment. Hundred three patients (58%) met all 6 criteria, while 45 (25%) met 5 of them. None were retreated for BPH in the follow-up period. The de novo incontinence rate was 4.1%. CONCLUSION: The Hexafecta score is a simple, transversal method for comprehensively evaluating functional outcomes after HoLEP surgery. Such an evaluation could be used to compare other types of procedures for BPH treatment. LEVEL OF EVIDENCE: 3.


Assuntos
Terapia a Laser , Lasers de Estado Sólido , Hiperplasia Prostática , Ressecção Transuretral da Próstata , Hólmio , Humanos , Terapia a Laser/métodos , Lasers de Estado Sólido/uso terapêutico , Masculino , Próstata , Hiperplasia Prostática/complicações , Hiperplasia Prostática/cirurgia , Qualidade de Vida , Estudos Retrospectivos , Ressecção Transuretral da Próstata/métodos , Resultado do Tratamento
5.
J Ethnopharmacol ; 279: 114384, 2021 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-34217796

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: In French Guiana, traditional phytotherapies are an important part of self-healthcare, however, a precise understanding of the interactions between local phytotherapies and biomedicine is lacking. Malaria is still endemic in the transition area between French Guiana and Brazil, and practices of self-treatment, although difficult to detect, have possible consequences on the outcome of public health policies. AIM OF THE STUDY: The objectives of this research were 1) to document occurences of co-medication (interactions between biomedicine and local phytotherapies) against malaria around Saint-Georges de l'Oyapock (SGO), 2) to quantify and to qualify plant uses against malaria, 3) and to discuss potential effects of such co-medications, in order to improve synergy between community efforts and public health programs in SGO particularly, and in Amazonia more broadly. MATERIALS AND METHODS: This cross-sectional study was conducted in 2017 in SGO. Inhabitants of any age and nationality were interviewed using a questionnaire (122 questions) about their knowledge and habits regarding malaria, and their use of plants to prevent and treat it. They were invited to show their potential responses on a poster illustrating the most common antimalarial plants used in the area. In order to correlate plant uses and malaria epidemiology, all participants subsequently received a medical examination, and malaria detection was performed by Rapid Diagnostic Test (RDT) and Polymerase Chain Reaction (PCR). RESULTS: A total of 1566 inhabitants were included in the study. Forty-six percent of them declared that they had been infected by malaria at least once, and this rate increased with age. Every person who reported that they had had malaria also indicated that they had taken antimalarial drugs (at least for the last episode), and self-medication against malaria with pharmaceuticals was reported in 142 cases. A total of 550 plant users was recorded (35.1% of the interviewed population). Among them 95.5% associated pharmaceuticals to plants. All plants reported to treat malaria were shared by every cultural group around SGO, but three plants were primarily used by the Palikur: Cymbopogon citratus, Citrus aurantifolia and Siparuna guianensis. Two plants stand out among those used by Creoles: Eryngium foetidum and Quassia amara, although the latter is used by all groups and is by far the most cited plant by every cultural group. Cultivated species accounts for 91.3% of the use reports, while wild taxa account for only 18.4%. CONCLUSIONS: This study showed that residents of SGO in French Guiana are relying on both traditional phytotherapies and pharmaceutical drugs to treat malaria. This medical pluralism is to be understood as a form of pragmatism: people are collecting or cultivating plants for medicinal purposes, which is probably more congruent with their respective cultures and highlights the wish for a certain independence of the care process. A better consideration of these practices is thus necessary to improve public health response to malaria.


Assuntos
Antimaláricos/uso terapêutico , Malária/epidemiologia , Malária/terapia , Medicina Tradicional , Fitoterapia , Adulto , Estudos Transversais , Feminino , Febre/tratamento farmacológico , Guiana Francesa/epidemiologia , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Plantas Medicinais , Adulto Jovem
7.
J Comp Pathol ; 149(2-3): 376-80, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23356933

RESUMO

A 2-year-old, captive-born, male moustached tamarin was subjected to necropsy examination after a fatal head trauma. A solitary, circumscribed, subpleural mass (0.6 cm diameter) was found in the right caudal lung lobe. The mass was diagnosed as a mucinous cystadenoma. Histochemical and immunohistochemical tests were performed to further characterize the tumour. Surfactant proteins A, B, C and D were not found in the neoplastic cells, suggesting that the tumour arose from a non-surfactant-producing alveolar lining cell. Pulmonary mucinous cystadenomas are uncommon benign tumours in man and have not been reported previously in animals.


Assuntos
Cistadenoma Mucinoso/veterinária , Neoplasias Pulmonares/veterinária , Doenças dos Macacos/patologia , Saguinus , Animais , Cistadenoma Mucinoso/patologia , Imuno-Histoquímica , Neoplasias Pulmonares/patologia , Masculino
8.
Chronic Dis Inj Can ; 32(3): 140-8, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22762900

RESUMO

INTRODUCTION: Though the cultural factors that may contribute to the diabetes epidemic in First Nations are frequently discussed, little is known about the factors that may help prevent it. In this ethnonursing study, we explore the cultural factors that help maintain health behaviours in Algonquin women who had received a diagnosis of gestational diabetes 2 to 10 years before this study. METHODS: The data were collected in two Algonquin communities through semi-structured interviews with key informants (n = 7) and general informants (n = 8) and through cultural immersion, with detailed observations being recorded into logbooks. RESULTS: The cultural factors that are likely to affect the prevention of diabetes are the importance of family and social ties, the possibility of preserving cultural values, the opportunity to learn behaviours through educational resources adapted to needs and culture, the chance of saving money through better diet and access to blood sugar data as a means of control. CONCLUSION: In the long term, these cultural factors could influence health behaviours and thus help prevent type 2 diabetes.


Assuntos
Diabetes Mellitus Tipo 2/etnologia , Diabetes Mellitus Tipo 2/prevenção & controle , Diabetes Gestacional/etnologia , Comportamentos Relacionados com a Saúde/etnologia , Indígenas Norte-Americanos , Adulto , Automonitorização da Glicemia , Canadá , Cultura , Economia , Relações Familiares/etnologia , Feminino , Humanos , Estilo de Vida , Motivação , Educação de Pacientes como Assunto , Gravidez , Meio Social
9.
Vet Pathol ; 49(4): 629-35, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21734058

RESUMO

Pulmonary alveolar proteinosis is a rare human disease characterized by accumulation of surfactant in alveoli without generating an inflammatory response. Lung lesions resembling pulmonary alveolar proteinosis were observed in 7 adult tamarins (5 males and 2 females). Gross lesions were characterized by areas of discoloration, slight bulging over the lung parenchyma, and occasional consolidation. Histologic examination of tamarin lung samples revealed intra-alveolar accumulation of amorphous, amphophilic, periodic acid-Schiff-positive, finely granular to dense material. In some cases, type II pneumocyte hypertrophy and hyperplasia were observed with pleural and septal thickening and fibrosis. Large numbers of intra-alveolar foamy macrophages were noted surrounding and/or in the vicinity of the lesions. Immunohistochemical analysis of the lung lesions using polyclonal (surfactant proteins A, B, and C) and monoclonal (surfactant protein D) antibodies revealed the granular material to be composed largely of surfactant protein B, followed by surfactant protein A. Surfactant proteins C and D were present in lesser quantities, with the latter observed surrounding the lipoproteinaceous deposits. Transmission electron microscopy of the affected lungs showed numerous, irregularly shaped osmiophilic lamellar bodies in type II pneumocytes. The cytoplasm in alveolar macrophages was expanded, containing ingested surfactant with swollen mitochondria and rough endoplasmic reticulum. Thoracic radiographs, available in 1 animal, depicted the lesions as small multifocal opacities randomly distributed in cranial and diaphragmatic lung lobes. This is, to the authors' knowledge, the first report of spontaneous pulmonary alveolar proteinosis in nonhuman primates.


Assuntos
Doenças dos Macacos/patologia , Proteinose Alveolar Pulmonar/veterinária , Saguinus , Animais , Feminino , Pulmão/patologia , Pulmão/ultraestrutura , Masculino , Proteinose Alveolar Pulmonar/patologia
10.
Rev Med Interne ; 29(11): 929-31, 2008 Nov.
Artigo em Francês | MEDLINE | ID: mdl-18387713

RESUMO

Hypocomplementemic urticarial vasculitis is a rare disorder characterized by the presence of C1q precipitins associated with a syndrome of urticarial vasculitis, arthralgias, ocular inflammation and obstructive-lung disease. We report the case of a 48-year-old woman with hypocomplementemic urticarial vasculitis. Because of dependance to corticosteroids, cyclophosphamide-pulse therapy was started and resulted in significant clinical improvement. Mycophenolate mofetil was effective as maintenance therapy and resulted in complete resolution of rash, arthralgias, arthritis and uveitis, but had no effect on the obstructive-lung disease.


Assuntos
Complemento C1q/deficiência , Vasculite/sangue , Ciclofosfamida/uso terapêutico , Feminino , Humanos , Pessoa de Meia-Idade , Ácido Micofenólico/análogos & derivados , Ácido Micofenólico/uso terapêutico , Doença Pulmonar Obstrutiva Crônica/complicações , Vasculite/tratamento farmacológico
11.
J Med Primatol ; 32(6): 341-5, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14641789

RESUMO

A survey for helminth parasites in feral New World non-human primates was conducted and compared with parasitological data from man in the region. A total of 835 fecal samples were collected from feral Aotus nancymae, A. vociferans, Saguinus labiatus, S. mystax, Saimiri boliviensis peruviensis, S. sciureus macrodon, Lagothrix lagotricha and Cacajao calvus rubicundus. In addition, adult parasites were collected from necropsies performed on monkeys that died during quarantine and in captivity. Helminth parasites shared by non-human primates and man in Peru were Ancylostoma braziliensis and Ascaris lumbricoides, found in a captive L. lagotricha; Necator americanus, found in a captive C. calvus rubicundus; Hymenolepis diminuta, found in feral Aotus spp. and S. mystax; and a single Trichuris spp. specimen found in a feral S. sciureus macrodon.


Assuntos
Helmintíase Animal/epidemiologia , Helmintos/fisiologia , Doenças dos Primatas/epidemiologia , Primatas/parasitologia , Animais , Fezes/parasitologia , Humanos , Peru/epidemiologia , Prevalência
12.
Sante Publique ; 15(1): 69-78, 2003 Mar.
Artigo em Francês | MEDLINE | ID: mdl-12806810

RESUMO

The prevalence of smoking has increased among young people aged 14 to 18 between 1993 and 1999, and most notably among girls within the same period. These observations illustrate the necessity for significant changes in mass media campaigns and education programmes related to the prevention of smoking among youth. The objective of this survey, initiated by the city of Besançon and the French National Mutual Insurance of Doubs, was to describe and analyse the knowledge and rationale of high school students on tobacco and their opinions in terms of prevention. Twelve public and private high schools in Besançon and Morteau (Doubs-France) participated in the survey; the group also represented a mix of general and professional schools. The questionnaire was filled out by 970 students selected at random. 96% of the students indicated cancer as being the main illness linked to tobacco and 94% stated that second-hand smoke constitutes a health risk. 61% admitted to seeking out the psychoactive effects of smoking. The students responses confirm that the types of messages relayed in a smoking prevention campaign which have an impact on them are: evoking fear of death (74%) and the use of humor (16%). One-third of high school students find that it is unacceptable to forbid smoking on school premises. The knowledge of the dangers related to smoking is not sufficient to keep young people from smoking and confirms that an educational approach based solely on knowledge and facts will not be sufficient to decrease their tobacco consumption. It is important to take into account the image that young people have of tobacco as a means to combat stress in future prevention strategies and campaigns.


Assuntos
Comportamento do Adolescente/psicologia , Comportamentos Relacionados com a Saúde , Conhecimentos, Atitudes e Prática em Saúde , Fumar/psicologia , Adolescente , Adulto , Feminino , França/epidemiologia , Humanos , Masculino , Fatores Sexuais , Fumar/epidemiologia , Inquéritos e Questionários
13.
Encephale ; 28(1): 65-70, 2002.
Artigo em Francês | MEDLINE | ID: mdl-11963345

RESUMO

This study evaluated the clinical effectiveness of a programme aimed at detecting, preventing and treating postpartum depression. The French version of the EPDS was used to measure the intensity of postpartum blues on a sample of 859 women, during their stay at the obstetrical clinic. Subjects under treatment for psychological problems were excluded from the study. Mothers scoring 9 or above on the EPDS, which is predictive of pospartum depression, were randomly assigned to a prevention and a control group. Written informed consent was obtained from the subjects after the study procedure had been explained. The prevention group received a counselling session integrating supportive, educational and cognitive-behavioral components. Therapists included five female Master's Degree level students in psychology. All therapists participated in didactic and clinical training as wells as weekly supervision from the first author. All subjects were given a second EPDS with written instructions to complete the questionnaire during the period 4 to 6 weeks postpartum and return it for analysis. At four to 6 weeks, women in the prevention group had significant reductions in the frequency of probable depression, as defined by a score of 11 or above on the EPDS (30.2% vs 48.2%, chi 2 = 7.36, dl = 1, p = 0.0067) and in the intensity of depressive symptoms measured by the mean score on the EPDS (8.5, SD = 4 vs 10.3, SD = 4.4, t = 3.06, dl = 209, p = 0.0024). Mothers with a probable depression were interviewed at home and assessed using the MINI (Mini Neuropsychiatric Interview, Lecrubier et al., 1997) to diagnose major depressive episode, the SIGH-D (Structured Interview Guide for the Hamilton Depression Rating Scale, Williams, 1988) and the BDI (Beck Depression Inventory, Beck et al., 1988). The baseline depression rating scores, EPDS (mean = 13.6, SD = 4), BDI (mean = 15.7, SD = 5.9), HDRS (mean = 14.8, SD = 6), were consistent with moderate depression. No significant differences in baseline scores were observed between the two groups on all the rating scales (p < 0.001). Mothers with probable depression in the prevention group were offered a program of 5 to 8 home visits. Most of the mothers in the prevention group (72%) agreed to participate in the program. On the contrary, most of the mothers (83.3%) who scored below 9 on the first EPDS and 11 or above on the second, who so did not received the preventive counselling session, declined to participate. This suggests the importance of the preventive session in establishing therapeutic alliance. The home visits program integrated four components, supportive, educational, cognitive-behavioral and psychodynamic centred on the mother-infant relationship in terms of the mother's personal history. Therapist participated in clinical training and weekly supervision. Fifteen women (71.4%) in the study group demonstrated complete symptom remission, as defined by HDRS score below 7 after the intervention, compared with 4 women (10.5%) in the control group (chi 2 = 23, p < 0.0001). A clearly therapeutic response to treatment was observed in the treated group with a mean reduction in HDRS score of 9.5 (DS = 6.7) from baseline. The improvement in the women in the treated group, as measured by the mean HDRS scores was statistically greater than that in the control group (m = 5.35, SD = 3.5 vs m = 15.8, SD = 4.6, t = 8.24, dl = 52, p < 0.0001). Our results indicate that a program based on an intervention at obstetrical clinics and on home visits is efficacious and well accepted for prevention, detection and treatment of postpartum depression.


Assuntos
Enfermagem em Saúde Comunitária , Depressão Pós-Parto/diagnóstico , Testes Neuropsicológicos/estatística & dados numéricos , Inventário de Personalidade/estatística & dados numéricos , Adulto , Depressão Pós-Parto/prevenção & controle , Depressão Pós-Parto/terapia , Feminino , França , Humanos , Recém-Nascido , Relações Mãe-Filho , Gravidez , Psicoterapia , Fatores de Risco , Resultado do Tratamento
14.
Bull World Health Organ ; 79(6): 546-52, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11436477

RESUMO

OBJECTIVE: To classify the causes of death in Maputo City, Mozambique, using the methods of the Global Burden of Disease study, in order to provide information for health policy-makers and to obtain a baseline for future studies in Maputo City and provincial capitals. METHODS: Data were taken from the Maputo City death register and autopsy records for 1994. FINDINGS: A total of 9011 deaths were recorded in the death register, representing a coverage of approximately 86%. Of these, 8114 deaths (92%) were classified by cause. Communicable, maternal, perinatal, and nutritional disorders accounted for 5319 deaths; noncommunicable diseases for 1834; and injuries for 961. The 10 leading causes of registered deaths were perinatal disorders (1643 deaths); malaria (928); diarrhoeal diseases (814); tuberculosis (456); lower respiratory infections (416); road-traffic accidents (371); anaemia (269); cerebrovascular diseases (269); homicide (188); and bacterial meningitis (178). CONCLUSIONS: Infectious diseases of all types, injuries, and cerebrovascular disease ranked as leading causes of death, according to both the autopsy records and the city death register. AIDS-related deaths were underreported. With HIV infection increasing rapidly, AIDS will add to the already high burden of infectious diseases and premature mortality in Maputo City. The results of the study indicate that cause of death is a useful outcome indicator for disease control programmes.


Assuntos
Autopsia , Causas de Morte , Efeitos Psicossociais da Doença , Sistema de Registros , Coleta de Dados , Doença/classificação , Humanos , Moçambique/epidemiologia
15.
Arch Biochem Biophys ; 387(1): 163-71, 2001 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-11368178

RESUMO

The effect of heat shock protein 90 (Hsp-90) and several other proteins on the catalytic activities of the 20 S proteasome (MPC) was examined. The chymotrypsin-like (ChT-L) and peptidylglutamyl-peptide hydrolyzing (PGPH) activities of the pituitary MPC were inhibited by Hsp-90 with IC50 values of 8 and 28 nM, respectively. Bovine serum albumin and two other proteins tested inhibited the same activities with much higher IC50 values. The trypsin-like and branched-chain amino-acid-preferring activities were not affected by any of the proteins. None of the activities of the bovine spleen MPC, an enzyme form in which the X, Y, and Z subunits are virtually completely replaced by the LMP2, LMP7, and LMP10 subunits, was affected by either Hsp-90 or the other proteins tested. Hsp-90 inhibited the degradation of the oxidized B-chain of insulin by the pituitary MPC but not by its spleen counterpart. The PA28 activator (11 S regulator; REG) of the proteasome abolished the inhibitory effect of Hsp-90 and other proteins on the ChT-L and PGPH activities of the pituitary MPC. It is suggested that Hsp-90 induces conformational changes that affect the ChT-L and PGPH activities expressed by the X and Y subunits, respectively, but does not affect the activities expressed by LMP subunits.


Assuntos
Proteínas de Choque Térmico HSP90/farmacologia , Complexos Multienzimáticos/antagonistas & inibidores , Animais , Bovinos , Quimotripsina/antagonistas & inibidores , Cisteína Endopeptidases , Endopeptidases/efeitos dos fármacos , Insulina/metabolismo , Ovalbumina/farmacologia , Hipófise/enzimologia , Inibidores de Proteases/farmacologia , Complexo de Endopeptidases do Proteassoma , Proteínas/farmacologia , Ribonuclease Pancreático/farmacologia , Soroalbumina Bovina/farmacologia , Baço/enzimologia
16.
JAMA ; 285(5): 535-9, 2001 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-11176854

RESUMO

One overall challenge for public health and medicine in the future is to allocate available resources effectively to reduce major causes of disease burden globally and to decrease health disparities between poor and affluent populations. The major risk factors for death and disability worldwide are malnutrition; poor water supply, sanitation, and personal and domestic hygiene; unsafe sexual behavior; tobacco use; alcohol use; occupational hazards; hypertension; physical inactivity; illicit drugs; and air pollution. The challenge for research in the 21st century is to maintain and improve life expectancy and the quality of life that was achieved for most of the world's population during the 20th century.


Assuntos
Efeitos Psicossociais da Doença , Pesquisa/tendências , Saúde Global , Humanos , Expectativa de Vida , Saúde Pública , Qualidade de Vida
19.
Sante Publique ; 12(3): 313-27, 2000 Sep.
Artigo em Francês | MEDLINE | ID: mdl-11142193

RESUMO

Reports from the French Ministry of Education warn of a decrease in the use of school food services, especially in sensitive urban areas. They also suggest that this decline has led to cases of malnutrition. This article describes the characteristics of the current supply of school meals and measures the evolution of demand observed between 1992 and 1996 in relation to the economic situation of students' families. The study was carried out in 3 departments in France: Doubs, Herault, and Val de Marne. The administrators of all public and private middle and high schools in the 3 departments received a questionnaire asking them to describe the services offered in their cafeterias and to provide the corresponding statistical and accounting data. External food services near the schools were also taken into account. Seventy-nine percent of schools responded to the survey. Concerning the services offered, 91% of schools have their own cafeterias, of which 81% are managed by the schools. Concerning the evolution of utilisation, a significant decrease in the number of meals served in seen in middle schools. On the other hand, high schools have observed stable utilisation. The positive changes in utilisation are linked, in middle schools, to characteristics of the schools' internal food services (self-service, choice of main courses, modulation of seats). In high schools, positive changes in the utilisation of school services are linked to the lack of external food services near the schools. As middle schools and high schools control the logistics and management of food services offered to students, they are potentially in a position to influence a policy on this issue. The evolution in utilisation is very different among departments and between middle and high schools. While economic precariousness has a negative structural effect on utilisation, it doesn't seem to be a major factor in the evolution of the decrease observed over the past few years.


Assuntos
Serviços de Alimentação/estatística & dados numéricos , Instituições Acadêmicas , Contabilidade , Análise de Variância , Distribuição de Qui-Quadrado , Alimentos , Serviços de Alimentação/economia , Serviços de Alimentação/organização & administração , França , Política de Saúde , Necessidades e Demandas de Serviços de Saúde , Humanos , Restaurantes , Instituições Acadêmicas/economia , Instituições Acadêmicas/organização & administração , Fatores Socioeconômicos , Inquéritos e Questionários , População Urbana
20.
Biochemistry ; 38(30): 9768-77, 1999 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-10423257

RESUMO

Two catalytic components of the multicatalytic proteinase complex (MPC, proteasome) designated as chymotrypsin-like (ChT-L) and branched chain amino acid preferring (BrAAP) cleave bonds after hydrophobic amino acids. The possible involvement of the ChT-L and peptidylglutamyl-peptide hydrolyzing (PGPH) activities in the cleavage of bonds attributed to the BrAAP component was examined. Several inhibitors of the ChT-L activity containing a phenylalaninal group did not affect the BrAAP activity at concentrations that were more than 150 times higher than their K(i) values for the ChT-L activity. Concentrations of lactacystin that inactivated more than 90% of the ChT-L activity had no effect on the BrAAP activity. Concentrations of 3,4-dichloroisocoumarin (DCI) that inactivated the ChT-L activity activated by up to 10-fold the BrAAP activity toward synthetic substrates and by more than 2-fold the degradation of the insulin B chain in a reaction not inhibited by Z-LGF-CHO, a selective inhibitor of the ChT-L activity. These findings are incompatible with any significant involvement of the ChT-L activity in the cleavage of BrAAP substrates. Both the native and DCI-treated MPC cleaved the insulin B chain mainly after acidic residues in a reaction inhibited by Z-GPFL-CHO, an inhibitor of the BrAAP and PGPH activities. DCI exposure did not result in acylation of the N-terminal threonine in the active site of the Y subunit. These results suggest involvement of the PGPH activity in the cleavage of BrAAP substrates, but this conclusion is incompatible with DCI activation of the BrAAP activity and inactivation of the PGPH activity, and with the finding that proteins inhibiting the PGPH activity had no effect on the BrAAP activity. Rationalization of these contradictions is discussed.


Assuntos
Cisteína Endopeptidases/química , Cisteína Endopeptidases/metabolismo , Complexos Multienzimáticos/química , Complexos Multienzimáticos/metabolismo , Hipófise/enzimologia , Acetilcisteína/análogos & derivados , Acetilcisteína/química , Sequência de Aminoácidos , Animais , Antibacterianos/química , Bovinos , Cumarínicos/química , Cisteína Endopeptidases/isolamento & purificação , Inibidores de Cisteína Proteinase/síntese química , Inibidores de Cisteína Proteinase/farmacologia , Ativação Enzimática/efeitos dos fármacos , Hidrólise , Insulina/química , Insulina/metabolismo , Isocumarinas , Cinética , Lactamas , Dados de Sequência Molecular , Complexos Multienzimáticos/isolamento & purificação , Complexo de Endopeptidases do Proteassoma
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