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1.
J Water Health ; 16(3): 414-424, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29952330

RESUMEN

Harmful algal blooms (HAB) release microtoxins that contaminate drinking water supplies and risk the health of millions annually. Crystalline ferrate(VI) is a powerful oxidant capable of removing algal microtoxins. We investigate in-situ electrochemically produced ferrate from common carbon steel as an on-demand alternative to crystalline ferrate for the removal of microcystin-LR (MC-LR) and compare the removal efficacy for both electrochemical (EC) and chemical dosing methodologies. We report that a very low dose of EC-ferrate in deionized water (0.5 mg FeO42- L-1) oxidizes MC-LR (MC-LR0 = 10 µg L-1) to below the guideline limit (1.0 µg L-1) within 10 minutes' contact time. With bicarbonate or natural organic matter (NOM), doses of 2.0-5.0 mg FeO42- L-1 are required, with lower efficacy of EC-ferrate than crystalline ferrate due to loss of EC-ferrate by water oxidation. To evaluate the EC-ferrate process to concurrently oxidize micropollutants, coagulate NOM, and disinfect drinking water, we spiked NOM-containing real water with MC-LR and Escherichia coli, finding that EC-ferrate is effective at 10.0 mg FeO42- L-1 under normal operation or 2.0 mg FeO42- L-1 if the test water has initial pH optimized. We suggest in-situ EC-ferrate may be appropriate for sporadic HAB events in small water systems as a primary or back-up technology.


Asunto(s)
Agua Potable/química , Técnicas Electroquímicas , Hierro/química , Microcistinas/química , Contaminantes Químicos del Agua/química , Purificación del Agua/métodos , Escherichia coli , Toxinas Marinas , Microbiología del Agua
2.
Biochim Biophys Acta Mol Cell Res ; 1871(8): 119851, 2024 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-39332539

RESUMEN

AIMS: Perinatal asphyxia is one of the major causes of neonatal death at birth. Survivors can progress but often suffer from long-term sequelae. We aim to determine the effects of perinatal asphyxia on mitochondrial dynamics and whether mesenchymal stem cell secretome (MSC-S) treatment can alleviate the deleterious effects. MATERIALS AND METHODS: Animals were subjected to 21 min of asphyxia at the time of delivery. MSC-S or vehicle was intranasally administered 2 h post-delivery. Mitochondrial mass (D-loop, qPCR), mitochondrial dynamics proteins (Drp1, Fis1 and OPA1, Western blot), mitochondrial dynamics (TOMM20, Immunofluorescence), as well as mitochondrial membrane potential (ΔΨm) (Safranin O) were evaluated at P1 and P7 in the hippocampus. KEY FINDINGS: Perinatal asphyxia increased levels of mitochondrial dynamics proteins Drp1 and S-OPA1 at P1 and Fis1 at P7. Mitochondrial density and mass were decreased at P1. Perinatal asphyxia induced sex-specific differences, with increased L-OPA1 in females at P7 and increased mitochondria circularity. In males, asphyxia-exposed animals exhibited a reduced ΔΨm at P7. MSC-S treatment normalised levels of mitochondrial dynamics proteins involved in fission. SIGNIFICANCE: This study provides novel insights into the effects of perinatal asphyxia on mitochondrial dynamics in the developing brain and on the therapeutic opportunities provided by mesenchymal stem cell secretome treatment. It also highlights on the relevance of considering sex as a biological variable in perinatal brain injury and therapy development. These findings contribute to the development of targeted, personalised therapies for infants affected by perinatal asphyxia.

3.
J Hosp Infect ; 131: 213-220, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36462673

RESUMEN

BACKGROUND: Awareness and compliance with international guidelines for diagnosis and clinical management of Clostridioides difficile infection (CDI) are unknown. AIM: To compare the awareness and compliance with the recommended strategies for diagnosis and clinical management of CDI across Europe in 2018-2019. METHODS: Hospital sites and their associated community practices across 12 European countries completed an online survey in 2018-2019, to report on their practices in terms of surveillance, prevention, diagnosis, and treatment of CDI. Responses were collected from 105 hospitals and 39 community general practitioners (GPs). FINDINGS: Hospital sites of 11 countries reported participation in national surveillance schemes compared with six countries for international schemes. The European Society of Clinical Microbiology and Infectious Diseases (ESCMID)-recommended CDI testing methodologies were used by 82% (86/105) of hospitals, however countries reporting the highest incidence of CDI used non-recommended tests. Over 75% (80/105) of hospitals were aware of the most recent European CDI treatment guidelines at the time of this survey compared with only 26% (10/39) of surveyed GPs. However, up to 15% (16/105) of hospitals reported using the non-recommended metronidazole for recurrent CDI cases, sites in countries with lower awareness of CDI treatment guidelines. Only 37% (39/105) of hospitals adopted contact isolation precautions in case of suspected CDI. CONCLUSION: Good awareness of guidelines for the management of CDI was observed across the surveyed European hospital sites. However, low compliance with diagnostic testing guidelines, infection control measures for suspected CDI, and insufficient awareness of treatment guidelines continued to be reported in some countries.


Asunto(s)
Clostridioides difficile , Infecciones por Clostridium , Humanos , Clostridioides , Europa (Continente)/epidemiología , Infecciones por Clostridium/diagnóstico , Infecciones por Clostridium/tratamiento farmacológico , Infecciones por Clostridium/epidemiología , Hospitales
4.
J Hosp Infect ; 69(4): 337-44, 2008 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18602187

RESUMEN

International guidelines suggest that a high prevalence of meticillin-resistant Staphylococcus aureus (MRSA) infections should influence the use of vancomycin for surgical prophylaxis. In order to compare the efficacy and adverse effects of vancomycin versus cefazolin as antimicrobial prophylaxis for insertion of cerebrospinal fluid (CSF) shunts, a randomised prospective clinical trial was performed. Over a 16-month period, all consecutive adult patients who underwent CSF shunt insertion at a university hospital with a high prevalence of MRSA infections were included. Patients were randomly allocated to receive either vancomycin or cefazolin before surgery and followed-up for four weeks for the development of infections. Of the 176 patients included in the study, 88 received vancomycin and 88 cefazolin. Shunt infections were significantly less likely to be observed in patients who were on vancomycin prophylaxis (4% vs 14%; P=0.03). All isolated staphylococci were resistant to meticillin. Mortality of patients with post-surgical infections was higher in the cefazolin group (P=0.02). Our data suggest that use of vancomycin as prophylactic agent for cerebrospinal shunt placement reduces the rate of shunt infections in the context of high prevalence of MRSA.


Asunto(s)
Antibacterianos/uso terapéutico , Profilaxis Antibiótica/métodos , Cefazolina/uso terapéutico , Resistencia a la Meticilina , Infecciones Estafilocócicas/prevención & control , Staphylococcus aureus/efectos de los fármacos , Infección de la Herida Quirúrgica/prevención & control , Vancomicina/uso terapéutico , Adulto , Anciano , Derivaciones del Líquido Cefalorraquídeo , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Infección Hospitalaria/mortalidad , Infección Hospitalaria/prevención & control , Femenino , Hospitales , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Prospectivos , Distribución Aleatoria , Infecciones Estafilocócicas/epidemiología , Infecciones Estafilocócicas/microbiología , Infecciones Estafilocócicas/mortalidad , Staphylococcus aureus/aislamiento & purificación , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/microbiología , Infección de la Herida Quirúrgica/mortalidad
5.
Arch Gen Psychiatry ; 32(3): 309-14, 1975 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-1090274

RESUMEN

We interviewed available spouses and first-degree relatives of 140 bipolar and unipolar probands for current and past psychopathology, and assessed interrater reliability. Diagnoses based on direct interviews of relatives were compared with those based on reports of the probands and of all other interviewed family members. Probands underestimated the prevalence of affective illness and other psychiatric disorders in their relatives, and overestimated the age of onset of illness in their ill relatives. Probands reported more accurately about illness in their spouses and parents than in their siblings and children, but accuracy reached acceptable levels for spouses only. Diagnoses on relatives derived by combining reports of all other interviewed family members, including the proband, were slightly more accurate than those based on the proband's reports alone. Good accuracy was obtained only for reports about spouses.


Asunto(s)
Síntomas Afectivos/diagnóstico , Errores Diagnósticos , Entrevista Psicológica , Anamnesis , Adulto , Síntomas Afectivos/genética , Anciano , Trastorno Bipolar/diagnóstico , Depresión/diagnóstico , Diagnóstico por Computador , Familia , Femenino , Humanos , Masculino , Memoria , Persona de Mediana Edad
6.
Pediatrics ; 90(5 Pt 2): 798-807, 1992 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-1437410

RESUMEN

Injury is the third leading cause of death in the United States and the leading cause for children, adolescents, and young adults. Injury results from multiple factors and so may its prevention. The first and simplest approach toward preventing injuries has been to innovatively and aggressively apply a traditional public health model. Strategically, the goal has been to remove harmful agents of injury and to make the environment safer. Tactics such as public information, product regulation, legislative action, and the like have been credited with reductions in mortality and morbidity. To expand our understanding and our prevention strategies across multiple injuries, other scientific knowledge bases and intervention models from fields such as psychology and child development are being used to study childhood injury. These approaches show that in addition to environmental determinants, psychosocial factors involving both the care giver and the child are related to injury. The research programs described here illustrate the advantage of investigating psychosocial factors at both molar and molecular levels. General characteristics of mothers and children related to injury help define families at risk, as well as suggesting vehicles for intervention. Behavioral factors influencing risk perception highlight the etiology of increased risk in adolescence. Injury episodes, even slight, as well as "near injuries" and dangerous and risky behavior can be quantified and analyzed by retrospective ("postmortem") approaches yielding data on commonly occurring consequences (and the lack thereof) for minor injury. Finally, approaches that simulate dangerous situations can identify interaction patterns that result in childhood injury. Based on such research, we are coming to view injuries as the result of patterns of behaviors that develop and persist over time, and as such these patterns can be detected and, one hopes, altered before a serious medical event occurs. The role of the pediatrician after injury occurs is clear. With regard to prevention of injuries, pediatricians' roles are being defined by those individuals who have begun to investigate causes, educate families, and advocate for regulation and prevention. However, like the causes and methods for prevention, the disciplines involved in the study and prevention of injury are multiple. Such a multidisciplinary approach that considers multiple factors, theories, models, and interventions to prevent injury may be the approach that is as simple as possible.


Asunto(s)
Conducta Infantil , Heridas y Lesiones , Adolescente , Adulto , Factores de Edad , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Modelos Teóricos , Percepción , Salud Pública , Factores de Riesgo , Factores Sexuales , Estadística como Asunto , Heridas y Lesiones/etiología , Heridas y Lesiones/prevención & control , Heridas y Lesiones/psicología
7.
Pediatrics ; 85(3 Pt 2): 437-41, 1990 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-2304806

RESUMEN

Self-injurious behavior is a serious problem that is not uncommon among individuals with mental retardation. Medical and developmental characteristics of 97 children, adolescents, and young adults (age range 11 months to 21 years, 11 months) assessed and treated for self-injurious behavior in a specialized, interdisciplinary inpatient unit between 1980 and 1988 were reviewed. This population differed from those reported in previous studies in that it was of school age and predominantly community based. Severe or profound mental retardation was present in 82.5% of our patients. The causative diagnoses associated with self-injurious behavior were similar to those of severe mental retardation alone. Associated disabilities represented at greater than expected frequencies included pervasive developmental disorders, visual impairment, and a history of infantile spasms. Most patients (81.4%) engaged in more than one type of self-injurious behavior. The most common topographies were head banging, biting, head hitting, body hitting, and scratching. Physical injury was documented in 77% of cases; the injuries most frequently reported were excoriations, scars/callus formation, hematomas, and local infection. As community placement of handicapped individuals continues to increase, pediatricians will be called upon to monitor patients who engage in self-injurious behavior.


Asunto(s)
Automutilación/etiología , Adolescente , Adulto , Ceguera/complicaciones , Parálisis Cerebral/complicaciones , Niño , Trastornos Generalizados del Desarrollo Infantil/complicaciones , Preescolar , Femenino , Humanos , Lactante , Discapacidad Intelectual/complicaciones , Masculino , Heridas y Lesiones/etiología
8.
Pediatrics ; 80(2): 165-74, 1987 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-3112727

RESUMEN

Traditional clinical monitoring of children with epilepsy does not appear to be sufficiently sensitive to cognitive functioning and behavioral problems. Although subtle, these changes may alter a child's ability to perform well in school and in society. Physicians must prevent seizures without producing intolerable side effects, and ways of more appropriately assessing these side effects must be developed. In this double-blind, counter-balanced, crossover study of 21 children, the effects of phenobarbital and valproic acid on cognitive functioning and behavior were measured. There was no difference in seizure control between the drugs, and each medication was maintained in the therapeutic range for 6 months (mean phenobarbital level, 21.2 micrograms/mL; mean valproic acid level, 94.1 micrograms/mL). Children were treated with each drug for 6 months. Differences between the drugs were seen on measurements of cognitive function and behavior. On four tests of neuropsychologic function, children performed significantly less well while receiving phenobarbital (P less than .01). There was no evidence that the patients were sedated or less able to perform continuous performance tasks while receiving phenobarbital. Parental assessment of behavior indicated significantly worse behavior with the phenobarbital regimen for three items (P less than .01) and children were measurably more "hyperactive" (P less than .05). Routine clinical assessment of the patients did not reveal differences between the drugs with respect to routine laboratory measurements or side effects as assessed by history or physical examination. Although children may appear to tolerate a medication without clinically apparent problems, subtle but significant changes in intellectual function and behavior may be occurring. Additional, more sensitive, methods of monitoring patients while receiving these drugs is necessary.


Asunto(s)
Anticonvulsivantes/efectos adversos , Conducta/efectos de los fármacos , Cognición/efectos de los fármacos , Fenobarbital/efectos adversos , Ácido Valproico/efectos adversos , Adolescente , Anticonvulsivantes/uso terapéutico , Niño , Ensayos Clínicos como Asunto , Método Doble Ciego , Femenino , Humanos , Masculino , Fenobarbital/uso terapéutico , Distribución Aleatoria , Ácido Valproico/uso terapéutico
9.
Arch Dermatol ; 116(8): 919-22, 1980 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-6447481

RESUMEN

We report here a case study in which behavior therapy techniques were used to treat the persistent and severe scratching of a patient with long-standing exfoliative dermatitis. A multiple-baseline clinical design across different body areas was used to evaluate the behavioral treatment program. This program consisted of (1) training the patient to monitor his scratching behavior and to use an incompatible response and distraction procedure contingent on the occurrence of scratching, and (2) differential attention by the therapist, so that the therapist's attention was contingent on intervals of nonscratching, and the therapist ignored the patient when he did scratch. The results indicated that the program was effective in almost completely eliminating scratching when a variety of therapists were and were not present. This suggests that the procedures used might easily be taught to the nursing staff.


Asunto(s)
Terapia Conductista/métodos , Dermatitis Exfoliativa/terapia , Adulto , Dermatitis Exfoliativa/diagnóstico , Humanos , Masculino
10.
Int J Antimicrob Agents ; 16(3): 357-60, 2000 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-11091063

RESUMEN

The aim of the study was to assess the incidence of hospital and community acquired bacterial pneumonia in HIV-infected subjects prior to and after the introduction of highly active antiretroviral therapy (HAART). We studied 266 patients with bacterial pneumonia over two separate periods, 154 in the first period and 112 in the second period. A statistically significant difference in the incidence of bacterial pneumonia in the two study periods was observed ranging from 13.1 to 8.5 episodes per 100 persons. The incidence of community-acquired bacterial pneumonia decreased from 10.7 to 7.7 (P=0.01), while that of nosocomial episodes decreased from 2.4 to 0.8 episodes (P=0.003). Low levels of peripheral CD(4+) cells (<100/mm(3)) and intravenous drug abuse (IVDA) were significantly associated with the development of community-acquired bacterial pneumonia, while an increasing value of APACHE III score and prolonged hospitalisation increased the risk of nosocomial bacterial pneumonia in both study periods.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/epidemiología , Fármacos Anti-VIH/uso terapéutico , Terapia Antirretroviral Altamente Activa , Infecciones por VIH/tratamiento farmacológico , Neumonía Bacteriana/epidemiología , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/microbiología , Humanos , Incidencia , Masculino , Neumonía Bacteriana/complicaciones , Factores de Riesgo
11.
J Diabetes Complications ; 11(5): 268-73, 1997.
Artículo en Inglés | MEDLINE | ID: mdl-9334908

RESUMEN

The increased risk of developing cardiovascular disease in diabetic population has been well documented, but the prevalent mechanism of this susceptibility is still only partly explained. We compared the impact of diabetes on ischemic heart disease in patients hospitalized in a public general hospital over a 10-year period. The prevalence of coronary heart disease (CHD) was consistently higher among diabetic population [namely, among non-insulin-dependent diabetes mellitus (NIDDM) patients] when compared with the nondiabetic population. The prevalence was similar in both genders, increasing with age, and was independent from body-mass index, history of smoking, metabolic control, or lipid pattern. Heart rate and blood pressure levels were significantly higher in NIDDM patients with CHD; similarly, there was a significant association between ischemic heart disease and atherosclerotic peripheral artery disease prevalence, and this trend was observed even in subjects with impaired glucose tolerance. These observations support the evidence that diabetes exerts a deleterious effect on general risk factors of atherosclerosis and increases susceptibility to cardiovascular disease by itself as an "independent" risk factor; on the other hand, the epidemiological evidence of an excessive occurrence of type II diabetes in individuals with pre-existing vascular disease suggests a genetically determined link between metabolic disturbances and cardiovascular disease.


Asunto(s)
Enfermedad Coronaria/epidemiología , Diabetes Mellitus Tipo 1/complicaciones , Diabetes Mellitus Tipo 2/complicaciones , Angiopatías Diabéticas/epidemiología , Intolerancia a la Glucosa/complicaciones , Adulto , Distribución por Edad , Anciano , Diabetes Mellitus Tipo 1/fisiopatología , Diabetes Mellitus Tipo 2/fisiopatología , Femenino , Intolerancia a la Glucosa/fisiopatología , Humanos , Italia/epidemiología , Masculino , Registros Médicos , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos
12.
J Biol Regul Homeost Agents ; 8(1): 32-5, 1994.
Artículo en Inglés | MEDLINE | ID: mdl-7976492

RESUMEN

High levels of the macrophage activation marker neopterin have been described in metastatic cancer patients. Since macrophages may either counteract or stimulate tumor development, it is important to establish which macrophage activity is mainly related to neopterin release. The present study was carried out to evaluate neopterin levels in metastatic solid tumor patients in respect with the antitumor macrophage cytokine TNF and with soluble IL-2 receptor (SIL-2R), whose secretion is stimulated by macrophages and it is associated with the immunosuppressive status of cancer patients. The study included 35 patients with metastatic solid neoplasms. Serum levels of neopterin, TNF and SIL-2R were measured in blood samples collected during the morning. Abnormally high concentrations of neopterin were seen in 18/35 (51%) patients. Patients with high levels of neopterin showed significantly higher concentrations of SIL-2R than those with normal neopterin values, whereas no difference was found in TNF levels. This study would suggest that the increased secretion of neopterin may reflect macrophage-mediated immunosuppression in metastatic solid neoplasms, rather than to be associated with the antitumor activity of macrophages.


Asunto(s)
Biopterinas/análogos & derivados , Macrófagos/fisiología , Neoplasias/sangre , Receptores de Interleucina-2/metabolismo , Factor de Necrosis Tumoral alfa/metabolismo , Adulto , Anciano , Biomarcadores/sangre , Biopterinas/sangre , Femenino , Humanos , Activación de Macrófagos , Macrófagos/inmunología , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia/inmunología , Neoplasias/inmunología , Neopterin , Solubilidad
13.
J Autism Dev Disord ; 9(4): 413-27, 1979 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-118152

RESUMEN

Epilepsy represents a serious medical and social problem. In the majority of cases, seizures are successfully managed by a variety of anticonvulsant medications, even though these drugs may potentiate significant physical and developmental side effects. A small group of studies to date have offered evidence that behavioral procedures can successfully manage some seizure disorders and are particularly desirable treatment choices when seizure disorders are intractable to drug management or when drug side effects are to be avoided. The present case adds to this small but growing group of studies in that it demonstrates the use of behavioral procedures in the analysis and treatment of high-rate myoclonic seizures. Seizures were evaluated on a hospital ward and in a controlled experimental setting. The data indicated a variable rate of seizures across days and activities and a reduction of seizure frequency in the controlled setting when time-out was made contingent on seizures. A program of contingent rest' was then applied on the hospital ward that demonstrated a reduction in myoclonic seizure frequency and the apparent prevention of several grand mal episodes. An observer calibration procedure showed high correspondence between behaviorally and physiologically recorded seizures. A discussion of issues in behavioral medicine research follows.


Asunto(s)
Terapia Conductista , Epilepsias Mioclónicas/prevención & control , Preescolar , Condicionamiento Operante , Electroencefalografía , Epilepsia Tónico-Clónica/prevención & control , Femenino , Humanos
14.
Acta Diabetol ; 33(3): 246-8, 1996 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-8904934

RESUMEN

To investigate whether circulating endothelin-1 (Et-1) may be related to the increased incidence and severity of ischaemic heart disease in type 2 diabetes mellitus, we compared the concentrations in type 2 diabetic patients and in non-diabetic patients with coronary artery disease (CAD) angiographically documented. Plasma levels of Et-1 were determined in 34 type 2 diabetic patients with CAD (16 with stable angina, 6 with unstable angina, 12 with previous myocardial infarction) and in 19 nondiabetic patients with CAD (4 with stable angina, 5 with unstable angina, 10 with previous myocardial infarction). Fifteen diabetic patients without CAD and 9 healthy volunteers served as control subjects. In the type 2 diabetic patients, the mean Et-1 levels were 3.19 +/- 1.61 pmol/l in those with stable angina, 3.58 +/- 1.92 pmol/l in those with unstable angina, 4.24 +/- 2.53 pmol/l in those with myocardial infarction. These values were not significantly different one another, nor from the values obtained from type 2 diabetic controls (3.64 +/- 2.13 pmol/l). In the non-diabetic patients, the mean Et-1 levels were 3.92 +/- 0.73 pmol/l in those with stable angina, 4.35 +/- 1.67 pmol/l in those with unstable angina, 4.33 +/- 1.66 pmol/l in those with myocardial infarction. These values were not significantly different one another, but significantly higher than those obtained from healthy controls (2.07 +/- 0.67 pmol/l; P < 0.001). No significant differences were found in Et-1 levels between diabetic and non-diabetic patients with stable, unstable angina and previous myocardial infarction. In contrast, a statistically significant difference was found in Et-1 levels between diabetic and non-diabetic control subjects (P < 0.05). In conclusion, similar raised concentrations of Et-1 in diabetic and non-diabetic patients with stable, unstable angina and previous myocardial infarction do not support the hypothesis that higher levels of Et-1 in diabetic patients are responsible for the increased incidence of CAD in diabetes mellitus. However, the raised Et-1 levels found in diabetic patients in the absence of CAD strongly suggest that a generalised endothelial dysfunction, documented in our study by increased levels of Et-1, most probably precedes subsequent cardiovascular diseases.


Asunto(s)
Angina de Pecho/sangre , Diabetes Mellitus Tipo 2/sangre , Endotelina-1/sangre , Infarto del Miocardio/sangre , Isquemia Miocárdica/sangre , Isquemia Miocárdica/complicaciones , Anciano , Análisis de Varianza , Angina de Pecho/complicaciones , Presión Sanguínea , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/fisiopatología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Infarto del Miocardio/complicaciones , Isquemia Miocárdica/fisiopatología , Valores de Referencia
15.
J Chemother ; 15(1): 60-5, 2003 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-12678416

RESUMEN

The aim of this study was to evaluate the effect of highly active antiretroviral therapy (HAART) on the incidence of bacterial infections in HIV-infected patients. Two time periods were compared: (A) January 1992-December 1995 (before HAART) and (B) January 1997-December 2000 (after HAART). During the study periods, we observed 931 patients with bacterial infections, i.e. 322 with bacteremia, 369 with bacterial pneumonia and 240 with urinary tract infections, out of 4,242 HIV-infected subjects admitted to the Department of Infectious Diseases of a large university hospital. By comparing the overall incidence of bacterial infections during periods A and B, a statistically significant difference, from 32% to 18% (p<0.01), was observed. Analysis of risk factors of community- and hospital-acquired bacterial infections did not significantly differ in the two study periods. This study establishes that a significant reduction in bacterial infection incidence occurred in HIV-infected subjects when HAART became the standard therapy for HIV infection.


Asunto(s)
Terapia Antirretroviral Altamente Activa , Bacteriemia/epidemiología , Infecciones Bacterianas/epidemiología , Infecciones por VIH/complicaciones , Infecciones Urinarias/epidemiología , Adulto , Bacteriemia/etiología , Bacteriemia/prevención & control , Infecciones Bacterianas/etiología , Infecciones Bacterianas/prevención & control , Estudios de Casos y Controles , Femenino , Humanos , Incidencia , Masculino , Pronóstico , Factores de Riesgo , Infecciones Urinarias/etiología , Infecciones Urinarias/prevención & control
16.
J Dev Behav Pediatr ; 16(3): 133-41, 1995 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-7560116

RESUMEN

Behavioral counterconditioning was conducted during simulated medical routines to supplement medical management of five children's distress during invasive procedures (bone marrow aspiration, lumbar puncture, tracheostomy care, venipuncture, and finger pricks). Preferred activities were paired in vivo with medical stimuli, and differential positive reinforcement was provided contingent on engagement with the preferred activities and on compliance with adult instructions, first during simulations and later during actual procedures. Data on cooperation, escape/avoidance, and negative vocalizations were evaluated using both single-subject experimental methods and a baseline-treatment group statistical comparison. Results support the benefits of this approach as an adjunctive intervention to decrease behavioral distress in some children requiring repeated invasive procedures. Discussion emphasizes the potential for training medical personnel to implement these techniques preventively, for decreasing or discontinuing sedation for some children treated under local anesthesia, and for preparing children with developmental disabilities for invasive procedures.


Asunto(s)
Enfermedad Crónica/psicología , Condicionamiento Clásico , Sedación Consciente , Desensibilización Psicológica/métodos , Rol del Enfermo , Adolescente , Anestesia Local/psicología , Biopsia con Aguja/psicología , Recolección de Muestras de Sangre/psicología , Médula Ósea/patología , Niño , Preescolar , Enfermedad Crónica/terapia , Condicionamiento Clásico/efectos de los fármacos , Femenino , Humanos , Conducta Imitativa , Masculino , Cooperación del Paciente/psicología , Flebotomía/psicología , Ludoterapia , Punción Espinal/psicología , Régimen de Recompensa , Traqueostomía/psicología
17.
J Dev Behav Pediatr ; 15(4): 278-91, 1994 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-7798374

RESUMEN

Pediatric feeding disorders are estimated to occur in as many as one in every four infants and children, and when serious can require numerous, costly and sustained interventions. For over a decade research has cumulated evidence on the contributions of Behavior Analysis in understanding and remediating some types of pediatric feeding disorders. The systematic use of this body of evidence in conjunction with other approaches (medical, nutrition, occupational therapy, physical therapy, and so forth) is being carried out on an inpatient treatment unit at the Kennedy Krieger Institute. Key aspects are described here, including direct observation behavior assessment, approaches for increasing and decreasing feeding behavior, skill acquisition, transfer of treatment gains, and parent training. The results based on case studies and overall program evaluation indicate that medically complicated, severe feeding disorders can be treated successfully in a few months with a multidisciplinary approach which incorporates behavioral procedures.


Asunto(s)
Terapia Conductista , Insuficiencia de Crecimiento/terapia , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Determinación de la Personalidad , Adolescente , Niño , Preescolar , Nutrición Enteral/psicología , Insuficiencia de Crecimiento/etiología , Insuficiencia de Crecimiento/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/etiología , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Femenino , Humanos , Lactante , Masculino , Grupo de Atención al Paciente , Refuerzo en Psicología
18.
Tumori ; 80(3): 212-5, 1994 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-8053079

RESUMEN

AIMS AND BACKGROUND: In addition to estrogens, prolactin (PRL) and IGF-I have also appeared to stimulate breast cancer growth. The present study was performed to evaluate IGF-I blood levels in operable breast cancer in relation to PRL values and the main prognostic variables. METHODS: The study included 40 patients, clinical stage T1-3NO-2MO. Venous blood samples were collected before and 7 days after surgery. PRL and IGF-I were measured by radioimmunoassay. The control group consisted of 50 healthy women. RESULTS: Mean serum levels of IGF-I were significantly higher in patients than in controls, without any apparent relation to the main prognostic variables, including estrogen receptor and node status. Surgery-induced hyperprolactinemia occurred in 22/40 patients. IGF-I mean concentrations observed in the postoperative period in patients with surgery-induced hyperprolactinemia were significantly lower than those seen in patients showing no postoperative PRL rise. CONCLUSIONS: The study showed that operable breast cancer may be associated with abnormally high levels of tumor growth factor IGF-I, and that surgery was followed by an IGF-I decline only in patients who showed surgery-induced hyperprolactinemia. Our previous studies have shown that postoperative hyperprolactinemia is a favorable prognostic factors for operable breast cancer. The present study, by showing that a postoperative PRL rise is associated with a fall in IGF-I, would suggest that surgery-induced hyperprolactinemia may determine a lower tumor relapse rate by determining a diminished secretion of breast tumor growth factor IGF-I.


Asunto(s)
Neoplasias de la Mama/sangre , Factor I del Crecimiento Similar a la Insulina/análisis , Prolactina/sangre , Adulto , Anciano , Femenino , Humanos , Persona de Mediana Edad , Pronóstico
19.
J Behav Ther Exp Psychiatry ; 16(4): 331-9, 1985 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-2868026

RESUMEN

The successful use of operant procedures to alter behaviors associated with various medical conditions suggests that such behaviors may be learned and that the principles of learning may be applied not only to treatment but also to the study of the pathogenesis of illness behavior. The present study, conducted within an ongoing neuromuscular research project, assessed the covariation of behaviors associated with chronic pain within and across behavioral and drug approaches to treatment. Problems of screaming and five other behaviors (including self-reports of pain) were measured across conditions of varying behavioral contingencies (noncontingent reinforcement vs the removal of reinforcement contingent upon screaming) and varying administration (time since medication and dosage) of Parsidol during attempts to treat the muscle pain of a 24-year-old male with a severe, chronic neuromuscular disorder diagnosed as dystonia musculorum deformans (DMD). Results indicated that: (a) pain behaviors covaried during behavioral and drug conditions even though the behavioral intervention only targeted screaming; (b) effects were greater on nontargeted behaviors during periods that followed rather than preceded drug administration; (c) in contrast to behavioral observation data, physiological measures of neuromuscular activity (EMG) did not differ across conditions. These results suggest that functional response-response relationships exist in patients as the result of their illness experience.


Asunto(s)
Terapia Conductista , Distonía Muscular Deformante/terapia , Manejo del Dolor , Adulto , Carbamazepina/uso terapéutico , Distonía Muscular Deformante/fisiopatología , Distonía Muscular Deformante/psicología , Electromiografía , Humanos , Masculino , Tono Muscular , Dolor/psicología , Fenotiazinas/uso terapéutico
20.
Minerva Gastroenterol Dietol ; 44(2): 59-65, 1998 Jun.
Artículo en Italiano | MEDLINE | ID: mdl-16495884

RESUMEN

BACKGROUND AND METHODS: Forty-six subjects affected with functional dyspepsia (the coherence of illness was excluded by proper research) not classifiable, according to Drossman principles, into reflex-like or ulcer-like dyspepsia class have been studied. All the patients, asked about either the presence or the absence of any dyspeptic symptoms, with the only condition that the symptom indicated had been present at least for three months continuously, were subjected to abdominal ultrasonography and after-meal cholecystokinetic. The emptying of cholecyst has been monitored until 150 minutes after meal, at near intervals. As Control Group subjects have been used, free from dyspeptic symptomatology and superimposable by age, sex and alimentary habits to the patients of the Study Group. RESULTS: The authors observed a) that the initial cholecystic volume after 15 minutes was significantly (p<0.001) reduced in the patients with dyspeptic symptoms, compared with those of the Control Group; b) that there was not significant difference between the two groups at 30, 45, 60 minutes; c) that in the patients of the Control Group cholecyst had returned to its normal volume in 90-120 minutes while, in the Study Group it had kept its volume almost unchanged until 150 min after meal, with a highly significant difference between the two groups (p<0.001). From the clinic-symptomatologic point view, the authors have verified, besides the proper symptoms of motor-like dyspepsia, also other symptoms not indicated by other authors, and precisely ''after meal sleepiness'', ''bitter mouth'' and ''after meal cephalea'', in 41 to 63%. CONCLUSIONS: The authors suppose that in the patients with functional dyspepsia, not reflex-like or ulcer-like dyspepsia the kinetic disorder responsible for symptomatology is in any way related to a disorder of kinetic activity of cholecyst.

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