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1.
Encephale ; 49(3): 234-240, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35164944

RESUMEN

OBJECTIVES: Cognitive insight reflects cognitive processes concerning patients' capacity of distancing from and reevaluation of anomalous beliefs and misinterpretations. The purpose of the present study was to examine the reliability and validity of the Arabic version of the Beck Cognitive Insight Scale. METHODS: The English language version of the Beck Cognitive Insight Scale was translated into Literary Arabic. A total of 150 patients with and without psychosis completed the Arabic version of Beck Cognitive Insight Scale and additional evaluations to assess psychopathology. Psychometric properties including content validity, construct validity using confirmatory factor analysis, discriminant validity and reliability were assessed for this translated measure. RESULTS: Our results revealed that the Arabic version of the Beck Cognitive Insight Scale showed adequate psychometric properties that permitone to assess impairments of cognitive insight in patients with psychosis and in patients without psychotic features. The fit indices of the confirmatory factor analysis supported the validity of the two-factor structure corresponding to self-reflectiveness and self-certainty subscales. Psychotic patients were significantly more confident in their beliefs compared with non-psychotic patients. Scores of self-certainty were significantly higher in psychotic patients. Cronbach's alpha reliability indicator of the Arabic version was equal to 0.60. Cronbach's alpha coefficients were 0.60 and 0.53 for the self-reflectiveness sub-scale and the self-certainty sub-scale, respectively. CONCLUSIONS: The Arabic version of the Beck Cognitive Insight Scale is valid and reliable for the assessment of cognitive insight. It may improve the detection and the prevention of impairments in cognitive insight.


Asunto(s)
Lenguaje , Trastornos Psicóticos , Humanos , Reproducibilidad de los Resultados , Trastornos Psicóticos/diagnóstico , Trastornos Psicóticos/psicología , Traducción , Psicometría , Cognición , Encuestas y Cuestionarios
2.
Lett Appl Microbiol ; 75(5): 1264-1274, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-35879830

RESUMEN

Milk kefir is a fermented dairy product with numerous attributed health benefits due to the presence of a complex eukaryotic and prokaryotic microbiota. In this study, a total number of 26 yeast isolates were obtained from eight kefir samples from three different cities of Iran. The isolates belonged to Kluyveromyces marxianus, Saccharomyces cerevisiae, Pichia fermentans and P. kudriavzevii. The potential probiotic characteristics of the isolates were evaluated based on their ability to tolerate the stimulated condition of the gastrointestinal tract. In addition, hemolytic activity, adherence to different solvents, auto-aggregation, adhesion to the epithelial intestine-derived cells and antimicrobial activity of the selected isolates were evaluated. Overall, four yeast strains (three strains of S. cerevisiae and one strain of P. fermentans) showed resistance and survival ability against the gastrointestinal physiological conditions including acidic pH, presence of bile salt and digestive enzymes. They were able to grow at 37°C and had the capacity to adhere to epithelial intestine-derived cells. These results suggest that the selected strains can be proper candidates as probiotic yeast strains for the development of novel functional foods.


Asunto(s)
Antiinfecciosos , Productos Lácteos Cultivados , Kéfir , Probióticos , Irán , Saccharomyces cerevisiae , Ácidos y Sales Biliares , Solventes
3.
Encephale ; 48(1): 3-12, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33863513

RESUMEN

OBJECTIVES: We aimed to assess sleep quality of Tunisian medical students during home confinement due to the COVID-19 pandemic, and to analyze the relationship between sleep quality and sociodemographic, clinical, confinement-related and psychological variables. METHODS: A correlational cross-sectional study was conducted from April 11th to May 3rd 2020. Medical students who have been in home confinement and who accepted to participate in an online survey were targeted. Sociodemographic data, clinical variables, and data related to home confinement were collected. Participants also completed Pittsburgh Sleep Quality Index, Depression, Anxiety and Stress Scale and Beck Hopelessness Scale. RESULTS: Results showed a high prevalence of poor sleepers among medical students (72.5%) with poor subjective sleep quality, increased sleep latency, sleep disturbances and daytime dysfunction. Multiple regression analysis revealed that family history of suicide attempts, tobacco use, perception of home confinement and reduced physical activity during home confinement significantly contributed to poor sleep quality. Among the psychological variables, anxiety and hopelessness significantly contributed to poor sleep quality in medical students during home confinement. CONCLUSIONS: Results revealed a high prevalence of poor sleep quality in medical students who have been in home confinement due to the COVID-19 pandemic. Except family history of suicide attempts, factors that significantly contributed to poor sleep quality were modifiable factors. Sleep quality and sleep parameters need to be assessed in this particular population and adequate measures aiming to promote quality of sleep need to be enhanced, given the crucial regenerative, homeostatic and psychological roles of sleep.


Asunto(s)
COVID-19 , Estudiantes de Medicina , Estudios Transversales , Humanos , Pandemias , SARS-CoV-2 , Sueño , Calidad del Sueño
4.
J Vasc Surg ; 67(3): 747-758.e7, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-28947230

RESUMEN

OBJECTIVE: Reducing readmissions is an important target for improving patient care and enhancing health care quality and cost-effectiveness. The aim of this study was to assess rates, risk factors, and indications of 30-day readmission after open aortic repair (OAR) and endovascular aneurysm repair (EVAR) of infrarenal abdominal aortic aneurysms (AAAs). METHODS: A retrospective analysis of the Premier Healthcare Database from 2009 to 2015 was performed. Indications for readmission after the index procedure, risk factors, and outcomes of the index admission and rehospitalization were evaluated. Multivariate logistic models were used to assess the association between 30-day readmission and different patient and hospital factors. RESULTS: A total of 33,332 AAA repair procedures were identified: 27,483 (82.5%) EVAR and 5849 (17.5%) OAR. The overall rate of 30-day readmission was 8.1%, and it was greater after OAR (12.9% vs 7.1% in EVAR; P < .001). In general, the most common specific readmission diagnoses were infectious complications (16.1%), followed by respiratory and cardiac complications (11.8% and 11.3%, respectively). After multivariate adjustment, OAR was associated with higher 30-day readmission compared with EVAR (adjusted odds ratio, 1.11; 95% confidence interval, 1.0-1.2; P = .04). Other risk factors of 30-day readmission included female gender, emergency and urgent procedures, certain patient comorbidities (dyslipidemia, congestive heart failure, history of transient ischemic attack, previous cardiac surgery, chronic obstructive pulmonary disease, asthma, chronic kidney disease, peripheral vascular disease, and history of malignant disease), and hemorrhage/shock/bleeding occurring during the index admission as well as nonhome discharge. Readmitted patients had an overall in-hospital mortality of 3.6% and paid a median rehospitalization cost of $7757. CONCLUSIONS: Our study shows that around 8.1% of patients undergoing infrarenal AAA repair were readmitted within 30 days. Because many readmissions are unrelated to the index procedure or caused by factors that are nonmodifiable or nonidentifiable at discharge, efforts should focus on discharge planning and improving the decision process regarding discharge destination as well as postdischarge coordination of care for high-risk patients.


Asunto(s)
Aneurisma de la Aorta Abdominal/cirugía , Implantación de Prótesis Vascular/efectos adversos , Procedimientos Endovasculares/efectos adversos , Readmisión del Paciente , Anciano , Anciano de 80 o más Años , Aneurisma de la Aorta Abdominal/diagnóstico por imagen , Aneurisma de la Aorta Abdominal/economía , Aneurisma de la Aorta Abdominal/mortalidad , Implantación de Prótesis Vascular/economía , Implantación de Prótesis Vascular/mortalidad , Distribución de Chi-Cuadrado , Bases de Datos Factuales , Procedimientos Endovasculares/economía , Procedimientos Endovasculares/mortalidad , Femenino , Costos de Hospital , Mortalidad Hospitalaria , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Oportunidad Relativa , Readmisión del Paciente/economía , Estudios Retrospectivos , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento
5.
Exp Parasitol ; 174: 52-58, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28167208

RESUMEN

Schistosoma mansoni causes a major chronic debilitating disease in more than 230 million people around the world. The pathognomonic granuloma is a major cause of the oxidative stress encountered as a consequence of infection not only in the liver, but also in other important organs as spleen, lung, brain and kidney. Resveratrol administration at a dose of 20 mg/kg once daily for two weeks to mice infected with Schistosoma mansoni resulted in improvement in serum cholesterol and triglyceride levels. Enzymatic antioxidant profile showed significant modulations in Superoxide dismutase, catalase activities and reduced glutathione levels. Specific biomarkers for homeostasis of brain and lung i.e. Tau and RAGE respectively, showed significant improvement after resveratrol administration.


Asunto(s)
Antioxidantes/uso terapéutico , Estrés Oxidativo/efectos de los fármacos , Esquistosomiasis mansoni/tratamiento farmacológico , Estilbenos/uso terapéutico , Animales , Antioxidantes/farmacología , Proteínas Sanguíneas/análisis , Encéfalo/metabolismo , Catalasa/metabolismo , Colesterol/sangre , Glutatión/metabolismo , Riñón/metabolismo , Hígado/metabolismo , Pulmón/metabolismo , Masculino , Ratones , Receptor para Productos Finales de Glicación Avanzada/metabolismo , Resveratrol , Schistosoma mansoni/efectos de los fármacos , Schistosoma mansoni/fisiología , Esquistosomiasis mansoni/metabolismo , Esquistosomiasis mansoni/fisiopatología , Organismos Libres de Patógenos Específicos , Bazo/metabolismo , Estilbenos/farmacología , Superóxido Dismutasa/metabolismo , Triglicéridos/sangre , Proteínas tau/metabolismo
6.
Exp Appl Acarol ; 73(1): 139-157, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28864886

RESUMEN

Due to the role of Ixodes ricinus (L.) (Acari: Ixodidae) in the transmission of many serious pathogens, personal protection against bites of this tick is essential. In the present study the essential oils from 11 aromatic Egyptian plants were isolated and their repellent activity against I. ricinus nymphs was evaluated Three oils (i.e. Conyza dioscoridis L., Artemisia herba-alba Asso and Calendula officinalis L.) elicited high repellent activity in vitro of 94, 84.2 and 82%, respectively. The most active essential oil (C. dioscoridis) was applied in the field at a concentration of 6.5 µg/cm2 and elicited a significant repellent activity against I. ricinus nymphs by 61.1%. The most repellent plants C. dioscoridis, C. officinalis and A. herba-alba yielded essential oils by 0.17, 0.11 and 0.14%, respectively. These oils were further investigated using gas chromatography-mass spectrometry analysis. α-Cadinol (10.7%) and hexadecanoic acid (10.5%) were the major components of C. dioscoridis whereas in C. officinalis, α-cadinol (21.2%) and carvone (18.2%) were major components. Artemisia herba-alba contained piperitone (26.5%), ethyl cinnamate (9.5%), camphor (7.7%) and hexadecanoic acid (6.9%). Essential oils of these three plants have a potential to be used for personal protection against tick bites.


Asunto(s)
Acaricidas , Artemisia/química , Calendula/química , Conyza/química , Ixodes , Aceites Volátiles , Animales , Egipto , Ixodes/crecimiento & desarrollo , Ninfa
7.
Clin Genet ; 89(5): 539-49, 2016 05.
Artículo en Inglés | MEDLINE | ID: mdl-26671754

RESUMEN

Clinical heterogeneity in cystic fibrosis (CF) often causes diagnostic uncertainty in infants without symptoms and in older patients with milder phenotypes. We performed a cross-sectional evaluation of a comprehensive set of clinical and laboratory descriptors in a physician-defined cohort (N = 376; Children's Hospital of Wisconsin and the American Family Children's Hospital CF centers in Milwaukee and Madison, WI, USA) to determine the robustness of categorizing CF (N = 300), cystic fibrosis transmembrane conductance regulator (CFTR)-related disorder (N = 19), and CFTR-related (CRMS) metabolic syndrome (N = 57) according to current consensus guidelines. Outcome measures included patient demographics, clinical measures, sweat chloride levels, CFTR genotype, age at diagnosis, airway microbiology, pancreatic function, infection, and nutritional status. The CF cohort had a significantly higher median sweat chloride level (105 mmol/l) than CFTR-related disorder patients (43 mmol/l) and CFTR-related metabolic syndrome patients (35 mmol/l; p ≤ 0.001). Patient groups significantly differed in pancreatic sufficiency, immunoreactive trypsinogen levels, sweat chloride values, genotype, and positive Pseudomonas aeruginosa cultures (p ≤ 0.001). An automated classification algorithm using recursive partitioning demonstrated concordance between physician diagnoses and consensus guidelines. Our analysis suggests that integrating clinical information with sweat chloride levels, CFTR genotype, and pancreatic sufficiency provides a context for continued longitudinal monitoring of patients for personalized and effective treatment.


Asunto(s)
Regulador de Conductancia de Transmembrana de Fibrosis Quística/genética , Fibrosis Quística/genética , Pruebas Genéticas/métodos , Mutación , Tamizaje Neonatal/métodos , Adolescente , Niño , Cloruros/metabolismo , Estudios de Cohortes , Estudios Transversales , Fibrosis Quística/clasificación , Fibrosis Quística/diagnóstico , Femenino , Genotipo , Hospitales Pediátricos , Humanos , Lactante , Recién Nacido , Masculino , Páncreas/fisiología , Páncreas/fisiopatología , Pseudomonas aeruginosa/aislamiento & purificación , Pseudomonas aeruginosa/fisiología , Sudor/química , Sudor/microbiología
8.
Nature ; 468(7324): 673-6, 2010 Dec 02.
Artículo en Inglés | MEDLINE | ID: mdl-21085118

RESUMEN

Antimatter was first predicted in 1931, by Dirac. Work with high-energy antiparticles is now commonplace, and anti-electrons are used regularly in the medical technique of positron emission tomography scanning. Antihydrogen, the bound state of an antiproton and a positron, has been produced at low energies at CERN (the European Organization for Nuclear Research) since 2002. Antihydrogen is of interest for use in a precision test of nature's fundamental symmetries. The charge conjugation/parity/time reversal (CPT) theorem, a crucial part of the foundation of the standard model of elementary particles and interactions, demands that hydrogen and antihydrogen have the same spectrum. Given the current experimental precision of measurements on the hydrogen atom (about two parts in 10(14) for the frequency of the 1s-to-2s transition), subjecting antihydrogen to rigorous spectroscopic examination would constitute a compelling, model-independent test of CPT. Antihydrogen could also be used to study the gravitational behaviour of antimatter. However, so far experiments have produced antihydrogen that is not confined, precluding detailed study of its structure. Here we demonstrate trapping of antihydrogen atoms. From the interaction of about 10(7) antiprotons and 7 × 10(8) positrons, we observed 38 annihilation events consistent with the controlled release of trapped antihydrogen from our magnetic trap; the measured background is 1.4 ± 1.4 events. This result opens the door to precision measurements on anti-atoms, which can soon be subjected to the same techniques as developed for hydrogen.

9.
Rev Gastroenterol Mex (Engl Ed) ; 89(1): 31-41, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-36931959

RESUMEN

INTRODUCTION: Gastrointestinal angiodysplasia (GIAD) is the most common vascular anomaly in the gastrointestinal (GI) tract, yet little is known about the factors favoring their bleeding. Our study aim was to determine the characteristics of patients with GIAD lesions in a Tunisian population and identify the risk factors of bleeding. PATIENTS AND METHODS: A retrospective study was carried out from January 2010 to February 2020 at a tertiary care medical center in Tunisia. Clinical and endoscopic data were collected from each patient's medical reports. We divided the patients into two groups: group A, patients with symptomatic GIAD; and group B, patients with incidental lesions. Group A was subsequently divided into two subgroups, according to the presence or absence of recurrent bleeding. The groups were compared by clinical, laboratory, and endoscopic features. RESULTS: GIAD was diagnosed in 114 patients, with a mean age of 70 ±â€¯13.3 years. GIAD lesions were mainly located in the colon (n = 72, 63%). Fifty-four patients (47%) presented with GIAD-related bleeding. The bleeding diagnosis was made during endoscopic procedures by visualizing active bleeding and the stigmata of recent hemorrhage in 10 (18.5%) and 12 (22.2%) cases, respectively. Most of the patients were treated by argon plasma coagulation (93%). Predictive factors of bleeding were age > 75 years, number of lesions >10, chronic kidney disease, diabetes mellitus, and coronary artery disease (p: 0.008; 0.002; 0.016; 0.048; and 0.039, respectively). CONCLUSION: Knowledge of the predictive factors of bleeding aids endoscopists in the decision-making process in cases of angiodysplasia.

10.
Transpl Infect Dis ; 15(5): 526-32, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23947513

RESUMEN

Microsporidia are opportunistic pathogens that usually cause a limited disease in the gastrointestinal tract. Occasionally, they can cause disseminated disease. In solid organ transplant recipients, disseminated disease has been reported only rarely. We describe a 68-year-old woman who presented with fever, cough, and acute kidney injury 6 months after kidney transplantation. Dissemination was confirmed by identification of microsporidial spores in urine and bronchoalveolar lavage fluid. Polymerase chain reaction analysis identified the species as Encephalitozoon cuniculi.


Asunto(s)
Encephalitozoon cuniculi/aislamiento & purificación , Encefalitozoonosis/diagnóstico , Huésped Inmunocomprometido , Trasplante de Riñón/efectos adversos , Infecciones Oportunistas , Anciano , Líquido del Lavado Bronquioalveolar/microbiología , Encephalitozoon cuniculi/genética , Encefalitozoonosis/complicaciones , Encefalitozoonosis/microbiología , Femenino , Humanos , Riñón/patología , Esporas Fúngicas , Resultado del Tratamiento
11.
Tunis Med ; 91(4): 234-9, 2013 Apr.
Artículo en Francés | MEDLINE | ID: mdl-23673700

RESUMEN

BACKGROUND: Major depression is a mental disorder that is associated with high morbidity and significant mortality. It is common among primary care attenders. Few is known about major depression prevalence and associated factors, which would prevent general practitioners from diagnosing it in primary care centres and treating it adequately. AIM: To determine prevalence and correlates of major depressive episodes (MDE) in a representative sample of primary care attenders in the area of Sousse (Tunisia). METHODS: A random and representative sample of primary care attenders was obtained by a two-stage sampling procedure. First, 30 primary care centres (20 urban and 10 rural) were selected, with stratification according to residency location. Second, 1246 consenting participants were systematically recruited among those centres attenders. Participants were screened, by trained interviewers, with Tunisian version of « Composite International Diagnostic Interview ¼ CIDI.2.1. After data entry in ishell program, MDE diagnosis was obtained according to ICD-10 criteria. RESULTS: Mean age in our sample was 43.4 ± 17.62 years, with feminine (70.9 %) and urban (67.8 %) predominance. MDE was found in 26.4 % of participants. Associated factors were female gender, marital statute of widowed or divorced and rural residency. CONCLUSION: This study provided data about high prevalence of MDE in the area of Sousse primary care centres and its correlated factors.


Asunto(s)
Trastorno Depresivo Mayor/epidemiología , Adolescente , Adulto , Estudios Transversales , Trastorno Depresivo Mayor/diagnóstico , Femenino , Humanos , Entrevista Psicológica , Masculino , Persona de Mediana Edad , Prevalencia , Atención Primaria de Salud , Túnez , Adulto Joven
12.
Prog Neurobiol ; 220: 102374, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36403864

RESUMEN

In humans and non-human primates (NHPs), motion and stereopsis are processed within fine-scale cortical sites, including V2 thick stripes and their extensions into areas V3 and V3A that are believed to be under the influence of magnocellular stream. However, in both species, the relative functional organization (overlapping vs. none overlapping) of these sites remains unclear. Using high-resolution functional MRI (fMRI), we found evidence for two minimally-overlapping channels within human extrastriate areas that contribute to processing motion and stereopsis. Across multiple experiments that included different stimuli (random dots, gratings, and natural scenes), the functional selectivity of these channels for motion vs. stereopsis remained consistent. Furthermore, an analysis of resting-state functional connectivity revealed stronger functional connectivity within the two channels rather than between them. This finding provides a new perspective toward the mesoscale organization of the magnocellular stream within the human extrastriate visual cortex, beyond our previous understanding based on animal models.


Asunto(s)
Ríos , Corteza Visual , Animales , Humanos , Vías Visuales , Percepción de Profundidad , Corteza Visual/diagnóstico por imagen , Imagen por Resonancia Magnética , Mapeo Encefálico
13.
J Cyst Fibros ; 22(4): 656-664, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37121795

RESUMEN

BACKGROUND: MRT5005, a codon-optimized CFTR mRNA, delivered by aerosol in lipid nanoparticles, was designed as a genotype-agnostic treatment for CF lung disease. METHODS: This was a randomized, double-blind, placebo-controlled Phase 1/2 study performed in the US. Adults with 2 severe class I and/or II CFTR mutations and baseline ppFEV1 values between 50 and 90% were randomized 3:1 (MRT5005: placebo). Six dose levels of MRT5005 (4, 8, 12, 16, 20, and 24 mg) or placebo (0.9% Sodium Chloride) were administered by nebulization. The single ascending dose cohort was treated over a range from 8 to 24 mg; the multiple ascending dose cohort received five weekly doses (range 8-20 mg); and the daily dosing cohort received five daily doses (4 mg). RESULTS: A total of 42 subjects were assigned to MRT5005 [31] or placebo [11]. A total of 14 febrile reactions were observed in 10 MRT5005-treated participants, which were mild [3] or moderate [11] in severity; two subjects discontinued related to these events. Additionally, two MRT5005-treated patients experienced hypersensitivity reactions, which were managed conservatively. The most common treatment emergent adverse events were cough and headache. No consistent effects on FEV1 were noted. CONCLUSIONS: MRT5005 was generally safe and well tolerated through 28 days of follow-up after the last dose, though febrile and hypersensitivity reactions were noted. The majority of these reactions resolved within 1-2 days with supportive care allowing continued treatment with MRT5005 and careful monitoring. In this small first-in-human study, FEV1 remained stable after treatment, but no beneficial effects on FEV1 were observed.


Asunto(s)
Fibrosis Quística , Adulto , Humanos , Fibrosis Quística/diagnóstico , Fibrosis Quística/tratamiento farmacológico , Fibrosis Quística/genética , Regulador de Conductancia de Transmembrana de Fibrosis Quística/genética , Regulador de Conductancia de Transmembrana de Fibrosis Quística/uso terapéutico , ARN Mensajero , Aerosoles y Gotitas Respiratorias , Mutación , Método Doble Ciego
14.
Am J Transplant ; 12(4): 1029-38, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22233329

RESUMEN

We assessed the earliest manifestations of recurrent membranous glomerulonephritis (MGN) in renal allografts. Clinical, laboratory and pathologic data were reviewed in 21 patients at the initial biopsy within 4 months post-transplant with evidence of MGN and on follow-up biopsies, compared to a biopsy control group of eight transplants without recurrent MGN. The mean time of first biopsy with pathologic changes was 2.7 months. In each earliest biopsy, immunofluorescence (IF) showed granular glomerular basement membrane (GBM) staining for C4d, IgG, kappa and lambda. IF for C3 was negative or showed trace staining in 16/21. On each MGN biopsy positive by IF, 14/19 showed absence of deposits or rare tiny subepithelial deposits by electron microscopy (EM). At the earliest biopsy, the mean proteinuria was 1.1 g/day; 16 patients had <1 g/day proteinuria. Follow-up was available in all patients (mean 35 months posttransplant). A total of 13 patients developed >1 g/day proteinuria; 12 were treated with: rituximab (n = 8), ACEI and increased prednisone dose (n = 2), ACEI or ARB only (n = 2). All patients showed reduction in proteinuria after treatment. A total of 11/16 patients showed progression of disease by EM on follow-up biopsy. Recognition of early allograft biopsy features aids in diagnosis of recurrent MGN before patients develop significant proteinuria.


Asunto(s)
Glomerulonefritis Membranosa/etiología , Glomerulonefritis Membranosa/patología , Enfermedades Renales/cirugía , Trasplante de Riñón/efectos adversos , Complicaciones Posoperatorias , Adulto , Anciano , Anticuerpos Monoclonales de Origen Murino/uso terapéutico , Femenino , Técnica del Anticuerpo Fluorescente , Estudios de Seguimiento , Glomerulonefritis Membranosa/tratamiento farmacológico , Humanos , Factores Inmunológicos/uso terapéutico , Enfermedades Renales/complicaciones , Masculino , Persona de Mediana Edad , Pronóstico , Proteinuria/tratamiento farmacológico , Proteinuria/etiología , Proteinuria/patología , Recurrencia , Estudios Retrospectivos , Rituximab , Trasplante Homólogo
15.
J Med Entomol ; 49(5): 1067-75, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23025188

RESUMEN

In our search for effective tick repellents from plant origin, we investigated the effect of essential oils of four medicinal and culinary plants belonging to the family Lamiaceae on nymphs of the tick Ixodes ricinus (L.). The essential oils of the dry leaves of Rosmarinus officinalis (Rosemary) (L.), Mentha spicata (Spearmint) (L.), Origanum majorana (Majoram) (L.), and Ocimum basilicum (Basil) (L.) were isolated by steam distillation and 15 microg/cm2 concentration of oils was tested against ticks in a laboratory bioassay. The oils of R. officinalis, M. spicata, and O. majorana showed strong repellency against the ticks 100, 93.2, and 84.3%, respectively, whereas O. basilicum only showed 64.5% repellency. When tested in the field, the oils of R. officinalis and M. spicata showed 68.3 and 59.4% repellency at a concentration of 6.5 microg/cm2 on the test cloths. The oils were analyzed by gas chromatography mass spectrometry and the major compounds from the most repellent oils were 1,8-cineole, camphor, linalool, 4-terpineol, borneol, and carvone.


Asunto(s)
Repelentes de Insectos/aislamiento & purificación , Ixodes , Lamiaceae/química , Aceites Volátiles/química , Animales , Egipto , Cromatografía de Gases y Espectrometría de Masas , Ninfa , Aceites Volátiles/aislamiento & purificación , Plantas Medicinales/química
16.
Am J Transplant ; 11(3): 606-12, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21342449

RESUMEN

We report four cases of de novo amyloidosis occurring after 16, 18, 28 and 31 years following kidney transplantation. These patients presented with proteinuria and progressive allograft dysfunction. Kidney biopsy showed AL amyloidosis in all compartments of the allograft kidney. Serum immunofixation studies revealed monoclonal lambda light chains in all four cases. Bone marrow examination showed 10% plasma cells in one case, 5-10% in two cases and less than 5% in one case. Two patients died unexpectedly within 3 months and 1 year of the diagnosis of allograft AL amyloidosis. Of the remaining two, one underwent autologous stem cell transplant that resulted in complete hematologic remission. However, the patient relapsed within 2 years and also developed progressive kidney allograft failure. The patient received a second autologous stem cell transplant with complete hematologic response, followed by a second kidney transplant, which showed no evidence of amyloid at 1-year posttransplant. The remaining case was treated with prednisone and bortezomib, which has stabilized kidney function in the short term. In conclusion, this study shows that AL amyloidosis is an uncommon but important cause of late onset proteinuria in the kidney allograft that results in kidney allograft failure.


Asunto(s)
Amiloidosis/etiología , Amiloidosis/terapia , Trasplante de Riñón/efectos adversos , Amiloidosis/diagnóstico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Ácidos Borónicos/administración & dosificación , Bortezomib , Femenino , Trasplante de Células Madre Hematopoyéticas , Humanos , Masculino , Melfalán/administración & dosificación , Persona de Mediana Edad , Prednisona/administración & dosificación , Proteinuria/diagnóstico , Proteinuria/etiología , Proteinuria/terapia , Pirazinas/administración & dosificación , Inducción de Remisión , Resultado del Tratamiento
17.
Bioinorg Chem Appl ; 2011: 453759, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21577315

RESUMEN

Magnesium-substituted fluorapatite powders were synthesized by hydrothermal method, and their sintering behavior was investigated by dilatometry in the temperature range 25-1100°C. Analysis of the obtained powders by X-ray diffraction and (31)P NMR spectroscopy showed that the powders consisted of a single apatite phase and no amorphous phase has been formed. Compared to pure fluorapatite, the shrinkage of the substituted samples occurred in two steps and the temperature at which the sintering rate was maximum is lower. In addition, the shrinkage was interrupted by an expansion of the samples due to the formation of a liquid phase. The latter phase led to the crystallization of needle-crystals by a dissolution-diffusion-reprecipitation process.

18.
Hum Exp Toxicol ; 40(9): 1496-1509, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33678036

RESUMEN

Non-alcoholic fatty liver disease (NAFLD) constitutes a major health problem worldwide and intimately links with obesity and diabetes. This study aimed to explore the therapeutic impact of early treatment with metformin (MTF) alone or in combination with Lactobacillus reuteri DSM 17938 (L. reuteri) + metronidazole (MTZ) in male Sprague Dawley rats with high-fat diet (HFD)-induced NAFLD. Hepatic steatosis was induced by feeding rats HFD for 6 weeks. MTF (150 mg/kg/day) or L. reuteri (2 × 109 colony forming unit/day) were given orally for 4 weeks; meanwhile, MTZ (15 mg/kg/day, p.o.) was administered for 1 week. Administration of L. reuteri + MTZ in combination with MTF produced a superior effect concerning insulin resistance (IR), lipid profile, liver function, oxidative stress, inflammatory and autophagic markers than using each treatment alone. Besides, this combination resulted in disappearance of steatosis, inflammation and vacuolation within hepatic architecture. Moreover, it normalized short chain fatty acids (SCFAs) as well as Firmicutes and Bacteroidetes faecal contents. In conclusion, early treatment with L. reuteri + MTZ in combination with MTF could prevent NAFLD progression and liver injury through targeting gut dysbiosis, inflammation and autophagic pathways.


Asunto(s)
Autofagia/efectos de los fármacos , Disbiosis , Microbioma Gastrointestinal/efectos de los fármacos , Metformina/uso terapéutico , Metronidazol/uso terapéutico , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Probióticos/uso terapéutico , Animales , Modelos Animales de Enfermedad , Quimioterapia Combinada , Humanos , Hipoglucemiantes/uso terapéutico , Limosilactobacillus reuteri/química , Masculino , Ratas , Ratas Sprague-Dawley
19.
Encephale ; 36(1): 77-81, 2010 Feb.
Artículo en Francés | MEDLINE | ID: mdl-20159200

RESUMEN

BACKGROUND: Depression in the elderly is characterized by an atypical expression with delusion, major anxiety, behaviour disorders, somatic complains or cognitive impairment. These clinical aspects are suspected to be at the origin of the poor response to antidepressants observed in these cases. It is currently indicated to add sedative medicines to antidepressants, when a major anxiety is associated with depression, or an antipsychotic in the delusional forms of the depression. However, it is not consensually established that cholinesterase inhibitors can be helpful in depression with cognitive impairment. Cholinesterase inhibitors are efficient among patients with Alzheimer disease. They improve cognitive performances and slow down the degenerative process during the first years of treatment. Today, new findings on neurobiological mechanisms of depression involve a located degenerative process, with some similar anomalies in the brain in both depression and pre-Alzheimer states. New therapeutic trials have shown that cholinesterase inhibitors can be also efficient on depressed symptoms among patients with Alzheimer disease. These evidences support the hypothesis that the association of cholinesterase inhibitors to antidepressants can bring more benefits to depressed elderly patients. AIM: Through a review of the literature and a case report, we tried to specify whether cholinesterase inhibitors can be useful in the treatment of depression among the elderly. CASE REPORT: We report the case of a 68-year-old man who had presented, four years ago, a second episode of major depression with a cognitive impairment. Treated with an antidepressant (venlafaxine), the improvement was poor with major anxiety, slow thoughts, and an evidence of a persistent cognitive impairment. Despite normal cerebral scanning images, we decided to add a cholinesterase inhibitor (donepezil) to the same antidepressant. With this association, we rapidly obtained a total remission from depression with restitution of cognitive performances. This state is still maintained until today (four years after the last depressive episode) with no new mood relapses. Recent cerebral scanning images did not show any degenerative process. CONCLUSION: The association of cholinesterase inhibitors and an antidepressant seems a good alternative, when the response to antidepressant is partial in depression with cognitive impairment in the elderly. However, further therapeutic trials are still needed, to prove the usefulness of cholinesterase inhibitors among depressed elderly patients.


Asunto(s)
Inhibidores de la Colinesterasa/uso terapéutico , Trastornos del Conocimiento/tratamiento farmacológico , Trastorno Depresivo Mayor/tratamiento farmacológico , Anciano , Antidepresivos de Segunda Generación/efectos adversos , Antidepresivos de Segunda Generación/uso terapéutico , Inhibidores de la Colinesterasa/efectos adversos , Trastornos del Conocimiento/diagnóstico , Trastornos del Conocimiento/psicología , Ciclohexanoles/efectos adversos , Ciclohexanoles/uso terapéutico , Trastorno Depresivo Mayor/diagnóstico , Trastorno Depresivo Mayor/psicología , Quimioterapia Combinada , Humanos , Masculino , Pruebas Neuropsicológicas , Clorhidrato de Venlafaxina
20.
Tunis Med ; 88(12): 920-3, 2010 Dec.
Artículo en Francés | MEDLINE | ID: mdl-21136361

RESUMEN

BACKGROUND: Interventional endoscopic procedures involving the gastrointestinal (GI) tract in children are very common. Over the last several years the number of procedures in this area has steadily increased. AIM: To study indications and results of GI interventional endoscopies performed in a Pediatric GI unit. METHODS: Retrospective study over a period of 10 years (1999-2008). Data were collected from endoscopic files. All procedures were performed endoscopically under general anesthesia. RESULTS: 185 interventional endoscopic procedures were done during this period in 96 patients (58 boys) median age: 4.9±4.7 years (1 month-13 years). Indications were as follows: esophageal stenosis (n=46; 47.9%), rectal polyp resection (n=21; 19.8%), esophageal varices ligation (n=19; 19.7%), foreign body extractions (n=8; 8.3%) and percutaneous endoscopic gastrostomy (n=2; 2.1%). One hundred and thirteen esophageal dilations (61.1% of procedures) were performed in 46 patients: caustic stenosis (n=22; 22.9%), peptic stenosis (n=13; 13.5%) and anastomotic stenosis (n=11; 11.4%). CONCLUSION: The main indication of interventional GI endoscopy in this series was oesophageal stenosis followed by rectal polyp resection, esophageal varices ligation and foreign body extractions.


Asunto(s)
Endoscopía Gastrointestinal/estadística & datos numéricos , Adolescente , Niño , Preescolar , Femenino , Enfermedades Gastrointestinales/cirugía , Humanos , Lactante , Recién Nacido , Masculino , Estudios Retrospectivos
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