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1.
Pharmacol Res ; 149: 104464, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31553934

RESUMEN

Patients with ulcerative colitis (UC) using marijuana have been reported to experience symptomatic benefit. Cannabidivarin (CBDV) is a safe non-psychoactive phytocannabinoid able to activate and desensitize TRPA1, a member of the TRP channels superfamily, which plays a pivotal role in intestinal inflammation. Here, we have investigated the potential intestinal anti-inflammatory effect of CBDV in mice and in biopsies from pediatric patients with active UC. Colonic inflammation was induced in mice by dinitrobenzenesulfonic acid (DNBS). The effect of orally administered CBDV on macroscopic and microscopic damage, inflammatory parameters (i.e. myeloperoxidase activity, intestinal permeability and cytokine production) and faecal microbiota composition, was evaluated 3 days after DNBS administration. TRPA1 expression was studied by RT-PCR in inflamed colons of mice as well as in mucosal colonic biopsies of children with active UC, whose response to incubation with CBDV was also investigated. CBDV attenuates, in a TRPA1-antagonist sensitive manner, DNBS-induced signs of inflammation including neutrophil infiltration, intestinal permeability, and cytokine (i.e. IL-1ß, IL-6 and the chemokine MCP-1) production. CBDV also alters the dysregulation of gut microbiota associated to colitis. Finally, CBDV lessens cytokine expression in colonic biopsies from pediatric patients with ulcerative colitis, a condition in which TRPA1 was up-regulated. Our preclinical study shows that CBDV exerts intestinal anti-inflammatory effects in mice via TRPA1, and in children with active UC. Since CBDV has a favorable safety profile in humans, it may be considered for possible clinical trials in patients with UC.


Asunto(s)
Antiinflamatorios/uso terapéutico , Cannabinoides/uso terapéutico , Colitis Ulcerosa/tratamiento farmacológico , Citocinas/análisis , Inflamación/tratamiento farmacológico , Animales , Niño , Colitis Ulcerosa/genética , Colitis Ulcerosa/patología , Humanos , Inflamación/genética , Inflamación/patología , Intestinos/efectos de los fármacos , Intestinos/patología , Masculino , Ratones , Canal Catiónico TRPA1/genética , Regulación hacia Arriba/efectos de los fármacos
2.
Br J Anaesth ; 121(5): 1156-1165, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30336861

RESUMEN

BACKGROUND: Driving pressure (ΔP) represents tidal volume normalised to respiratory system compliance (CRS) and is a novel parameter to target ventilator settings. We conducted a study to determine whether CRS and ΔP reflect aerated lung volume and dynamic strain during general anaesthesia. METHODS: Twenty non-obese patients undergoing open abdominal surgery received three PEEP levels (2, 7, or 12 cm H2O) in random order with constant tidal volume ventilation. Respiratory mechanics, lung volumes, and alveolar recruitment were measured to assess end-expiratory aerated volume, which was compared with the patient's individual predicted functional residual capacity in supine position (FRCp). RESULTS: CRS was linearly related to aerated volume and ΔP to dynamic strain at PEEP of 2 cm H2O (intraoperative FRC) (r=0.72 and r=0.73, both P<0.001). These relationships were maintained with higher PEEP only when aerated volume did not overcome FRCp (r=0.73, P<0.001; r=0.54, P=0.004), with 100 ml lung volume increases accompanied by 1.8 ml cm H2O-1 (95% confidence interval [1.1-2.5]) increases in CRS. When aerated volume was greater or equal to FRCp (35% of patients at PEEP 2 cm H2O, 55% at PEEP 7 cm H2O, and 75% at PEEP 12 cm H2O), CRS and ΔP were independent from aerated volume and dynamic strain, with CRS weakly but significantly inversely related to alveolar dead space fraction (r=-0.47, P=0.001). PEEP-induced alveolar recruitment yielded higher CRS and reduced ΔP only at aerated volumes below FRCp (P=0.015 and 0.008, respectively). CONCLUSIONS: During general anaesthesia, respiratory system compliance and driving pressure reflect aerated lung volume and dynamic strain, respectively, only if aerated volume does not exceed functional residual capacity in supine position, which is a frequent event when PEEP is used in this setting.


Asunto(s)
Anestesia General , Mediciones del Volumen Pulmonar , Mecánica Respiratoria/efectos de los fármacos , Músculos Respiratorios/efectos de los fármacos , Abdomen/cirugía , Anciano , Femenino , Capacidad Residual Funcional , Humanos , Rendimiento Pulmonar , Masculino , Persona de Mediana Edad , Ápice del Flujo Espiratorio , Respiración con Presión Positiva , Alveolos Pulmonares/efectos de los fármacos , Posición Supina , Volumen de Ventilación Pulmonar
3.
Int J Biometeorol ; 58(5): 661-7, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23435513

RESUMEN

The present study was carried out in a phenological garden in central Italy that contains vegetative clones of shrubs and trees common to several international phenological gardens, such as Cornus sanguinea L.; Corylus avellana L.; Ligustrum vulgare L.; Robinia pseudoacacia L.; Salix acutifolia Willd. and Sambucus nigra L. Vegetative plant growth monitoring was carried out weekly using common international keys: BBCH07, bud break and leaf unfolding; BBCH19, young unfolded leaf; BBCH91, adult leaves; BBCH93, beginning of leaf colouring. The phenological dates thus obtained provide a model of the development for these different species in relation to the 15-year period of observation (1997-2011). From a meteorological point of view, temperature and precipitation trends were studied, with the highest anomalies during the study period recorded during the first 2 months of the year (January, February). There was relative invariance in the manifestation of the open bud phase and the contemporary advance of the young open leaves phase, particularly from 2006. This was accompanied by shortening of the leaf opening period, which appeared due to more rapid spring temperature increases over the last few years. The advance tendency of the BBCH91 phase showed adult leaves from the first summer weeks with fully green foliage monitored for a long time. Generally, the autumn leaf colouring phase tended to remain constant, with the exception of Salix acutifolia and Sambucus nigra, for which, on the other hand, the first leaf development phases appeared to be most likely influenced by the photoperiod.


Asunto(s)
Magnoliopsida/crecimiento & desarrollo , Hojas de la Planta/crecimiento & desarrollo , Italia , Estaciones del Año , Tiempo (Meteorología)
4.
Clin Exp Immunol ; 174(2): 229-36, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23815517

RESUMEN

Five patients with active disseminated vitiligo were given 1g of a chimeric (murine/human) monoclonal antibody to CD20 in a single intravenous infusion and followed-up for 6 months. Three of the patients showed an overt clinical and histological improvement of the disease, one presented slight improvement and the remaining patient showed no changes. Improvement was neither associated with changes in laboratory parameters nor to a specific human leucocyte antigen D-related (HLA-DR) phenotype. We believe that these preliminary results are encouraging, and further clinical trials should be undertaken. An important aim should be the finding of a marker with a good response to this therapeutic approach.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , Antígenos CD20/inmunología , Vitíligo/terapia , Animales , Anticuerpos Monoclonales/administración & dosificación , Biomarcadores Farmacológicos/sangre , Progresión de la Enfermedad , Estudios de Seguimiento , Antígenos HLA-DR/metabolismo , Humanos , Infusiones Intravenosas , Ratones , Proyectos Piloto , Proteínas Recombinantes de Fusión/administración & dosificación , Proteínas Recombinantes de Fusión/uso terapéutico , Balance Th1 - Th2 , Resultado del Tratamiento
5.
Vet World ; 15(7): 1785-1797, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36185531

RESUMEN

Background and Aim: Cardiac time intervals (CTIs) can provide important information on the electrical and mechanical properties of the heart. We hypothesized that cardiac function can be described using the combined power of electrocardiography (ECG) and phonocardiography (PCG) signals. This study aimed to (1) validate a novel custom device in measuring CTI parameters; (2) compare CTI parameters with a commercially available device and standard transthoracic echocardiography (STE); and (3) compare calculated systolic performance index (SPI) and myocardial performance index (MPI) with Tei index from the STE. Materials and Methods: This study determined CTIs based on simultaneous ECG and PCG recordings in 14 healthy Beagle dogs using the custom-built device. These CTI parameters were compared with a commercially available device (Eko DUO ECG + Digital Stethoscope; Eko DUO) and the STE. Agreement of CTI parameters between the custom device and the commercially available device or STE was evaluated. Calculated SPI and MPI based on Wigger's diagram were proposed, compared with SPI and Tei index, and correlated with STE parameters. Results: We found that the ECG and PCG parameters measured from the custom-built device did not differ from the commercially available device and the STE. By combining ECG and PCG signals, we established CTI parameters in healthy dogs including indices for systolic function (SPI: QS1/S1S2) and global cardiac function {F1 ([QS1+S2]/S1S2), F2 ([RS1+S2]/S1S2), and F3 (RS1 + [QS2-QT]/S1S2)}. The SPI, F2, and F3 were comparable with echocardiographic parameters describing systolic (Pre-ejection period/left ventricular ejection time [LVET]) and Tei index ([MCOdur-LVET]/LVET), respectively. Only SPI and F3 were correlated significantly with MCOdur and heart rate, respectively. Conclusion: We have validated the use of the custom-built device to describe CTIs that are comparable to the commercially available device and STE in healthy Beagles. The proposed SPI and MPI derived from CTI parameters can be useful in clinical practice to describe the cardiac function, especially in areas where access to STE is constrained.

6.
Int J Hist Archaeol ; 25(1): 170-191, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-32837179

RESUMEN

Archaeological deposits build up inside standing buildings both under and between floors and these have the potential to provide considerable information about human behavior in the past. Under and between floor spaces provide a unique depositional environment that allow the survival of rare and fragile organic materials that typically do not survive in other archaeological contexts, including paper, cardboard, fabric and other fibres, seeds, leather, and human hair and skin cells. However, they require a clear understanding of depositional processes to allow their interpretation. Experimental archaeology was conducted to understand the process of artifact deposition and the interpretation of underfloor deposits in twelve standing buildings in Western Australia. Floors were built and a range of artifacts swept across them to determine how artifacts travelled across floorboards or fell through gaps between boards. Size, shape, and angularity of artifacts were key determinants of the likelihood of deposition. Sweeping activity makes it more likely that material will be deposited around the margins of rooms, and particularly, to either side of doorways. Underfloor deposits excavated from two specific Western Australian buildings, Ellensbrook Homestead, and the York Residency Museum, are interpreted based on the results of these experiments.

7.
Front Vet Sci ; 8: 741115, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34746282

RESUMEN

Background and Objective: Myxomatous mitral valve disease (MMVD) progression entails changes in the structural and functional properties of the heart affecting cardiac timings and intervals within the cardiac cycle. Conventionally, echocardiography is used to determine the cardiac time intervals (CTIs) including systolic and myocardial performance indices (SPI and MPI) in evaluating cardiac function. Alternatively, these CTIs can also be measured using simultaneous recordings of electrocardiography (ECG) and phonocardiography (PCG), but their values in different MMVD stages remain to be established. This study aimed to establish and prove the use of derived SPI and MPI from a dedicated device as a novel approach to assess cardiac function in different stages of MMVD dogs. Materials and Methods: A prospective study in 52 dogs with different MMVD stages measured the CTIs using a novel device. These were compared and correlated with standard echocardiographic parameters. The predictive value of SPI and three new proposed formulas to estimate MPI (i.e., F1, F2, and F3) in association with asymptomatic from symptomatic MMVD dogs were investigated. Results: Our findings revealed that CTI parameters measured from a novel device including QS1, QS2, S1S2, MPI-F1, and MPI-F2 were altered at different stages of MMVD. The SPI and all proposed MPI formulas were comparable with the systolic time interval and Tei index from echocardiography. In addition, the SPI, MPI-F1, and MPI-F2 were significantly correlated with the Tei index. However, the SPI was not able to differentiate the various stages of MMVD. Conversely, only the MPI-F1 (i.e., (QS1 + S2)/S1S2) demonstrated good predictive accuracy when compared between asymptomatic and symptomatic MMVD dogs similar to the Tei index. Moreover, this formula was able to differentiate stages B1 and C with remarkable predictive accuracy, higher sensitivity, and high specificity when compared with the Tei index. Conclusion: We have successfully described the CTI parameters in different MMVD stages using simultaneous ECG and PCG recordings in dogs. Furthermore, we have proven that the concept of using the newly proposed parameters from a novel device is equivalent to the Tei index. Thus, we established a novel approach to evaluate cardiac function and its supportive use in the diagnosis of MMVD patients.

8.
Eur Rev Med Pharmacol Sci ; 25(3): 1738-1742, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33629343

RESUMEN

OBJECTIVE: Since the beginning of the COVID-19 pandemic it has been recommended that chemical disinfectants are used to protect surfaces. This study aimed to determine whether the number of exposure calls related to household disinfectants (HD) received between January 30, 2020 to May 18, 2020 varied from the same time period in the previous year. MATERIALS AND METHODS: A retrospective review of the poison control center database from the Fondazione Universitario Policlinico Agostino Gemelli IRCCS, Rome, Italy, was conducted. Calls from Italian citizens, hospitals, and general practitioners received during the same time period in 2019 and 2020 were compared. RESULTS: The center received 1972 exposure calls during the study period. A 5% increase in calls regarding exposure to HDs was noted from 2019 to 2020 (9.8% to 15.2%, p<0.001). The majority of enquiries regarded bleach-containing products, hand sanitizers, ethanol, and hydrogen peroxide. Most calls were received from patients in their homes (n, 259; prevalence, 86%; increase, 107%) and concerned accidental exposure (n, 280; prevalence, 93%; increase, 76%), while cases of intentional exposure decreased (n, 14; prevalence, 5%; decrease, 33%). The main route of exposure was ingestion (n, 170; prevalence, 57%; increase, 45%), but the highest increase was observed in inhalation cases (n, 82; prevalence, 27%; increase, 122%). CONCLUSIONS: As the incidence of enquiries regarding products that can represent an important health hazard, when improperly used, increased in 2020 suggests that the COVID-19 public health messaging on the proper use of HDs should be improved.


Asunto(s)
COVID-19/prevención & control , Desinfectantes/envenenamiento , Desinfección , Vivienda/normas , Centros de Control de Intoxicaciones/estadística & datos numéricos , SARS-CoV-2 , COVID-19/transmisión , Humanos , Italia , Estudios Retrospectivos , SARS-CoV-2/efectos de los fármacos
9.
Br J Pharmacol ; 154(5): 1001-8, 2008 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-18469842

RESUMEN

BACKGROUND AND PURPOSE: Cannabidiol is a Cannabis-derived non-psychotropic compound that exerts a plethora of pharmacological actions, including anti-inflammatory, neuroprotective and antitumour effects, with potential therapeutic interest. However, the actions of cannabidiol in the digestive tract are largely unexplored. In the present study, we investigated the effect of cannabidiol on intestinal motility in normal (control) mice and in mice with intestinal inflammation. EXPERIMENTAL APPROACH: Motility in vivo was measured by evaluating the distribution of an orally administered fluorescent marker along the small intestine; intestinal inflammation was induced by the irritant croton oil; contractility in vitro was evaluated by stimulating the isolated ileum, in an organ bath, with ACh. KEY RESULTS: In vivo, cannabidiol did not affect motility in control mice, but normalized croton oil-induced hypermotility. The inhibitory effect of cannabidiol was counteracted by the cannabinoid CB1 receptor antagonist rimonabant, but not by the cannabinoid CB2 receptor antagonist SR144528 (N-[-1S-endo-1,3,3-trimethyl bicyclo [2.2.1] heptan-2-yl]-5-(4-chloro-3-methylphenyl)-1-(4-methylbenzyl)-pyrazole-3-carboxamide), by the opioid receptor antagonist naloxone or by the alpha2-adrenergic antagonist yohimbine. Cannabidiol did not reduce motility in animals treated with the fatty acid amide hydrolase (FAAH) inhibitor N-arachidonoyl-5-hydroxytryptamine, whereas loperamide was still effective. In vitro, cannabidiol inhibited ACh-induced contractions in the isolated ileum from both control and croton oil-treated mice. CONCLUSIONS AND IMPLICATIONS: Cannabidiol selectively reduces croton oil-induced hypermotility in mice in vivo and this effect involves cannabinoid CB1 receptors and FAAH. In view of its low toxicity in humans, cannabidiol may represent a good candidate to normalize motility in patients with inflammatory bowel disease.


Asunto(s)
Cannabidiol/farmacología , Cannabis , Fármacos Gastrointestinales/farmacología , Motilidad Gastrointestinal/efectos de los fármacos , Ileítis/tratamiento farmacológico , Íleon/efectos de los fármacos , Acetilcolina/farmacología , Amidohidrolasas/antagonistas & inhibidores , Amidohidrolasas/metabolismo , Animales , Cannabis/química , Colinérgicos/farmacología , Aceite de Crotón , Modelos Animales de Enfermedad , Relación Dosis-Respuesta a Droga , Inhibidores Enzimáticos/farmacología , Tránsito Gastrointestinal/efectos de los fármacos , Ileítis/inducido químicamente , Ileítis/fisiopatología , Íleon/metabolismo , Íleon/fisiopatología , Loperamida/farmacología , Masculino , Ratones , Ratones Endogámicos ICR , Piperidinas/farmacología , Pirazoles/farmacología , Receptor Cannabinoide CB1/efectos de los fármacos , Rimonabant
10.
Br J Pharmacol ; 153(6): 1272-80, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18223666

RESUMEN

BACKGROUND AND PURPOSE: Endocannabinoids (via cannabinoid CB(1) receptor activation) are physiological regulators of intestinal motility and food intake. However, their role in the regulation of gastric emptying is largely unexplored. The purpose of the present study was to investigate the involvement of the endocannabinoid system in the regulation of gastric emptying in mice fed either a standard diet (STD) or a high-fat diet (HFD) for 14 weeks. EXPERIMENTAL APPROACH: Gastric emptying was evaluated by measuring the amount of phenol red recovered in the stomach after oral challenge; CB(1) expression was analysed by quantitative reverse transcription-PCR; endocannabinoid (anandamide and 2-arachidonoyl glycerol) levels were measured by liquid chromatography-mass spectrometry. KEY RESULTS: Gastric emptying was reduced by anandamide, an effect counteracted by the CB(1) receptor antagonist rimonabant, but not by the CB(2) receptor antagonist SR144528 or by the transient receptor potential vanilloid type 1 (TRPV1) antagonist 5'-iodoresiniferatoxin. The fatty acid amide hydrolase (FAAH) inhibitor N-arachidonoyl-5-hydroxytryptamine (but not the anandamide uptake inhibitor OMDM-2) reduced gastric emptying in a way partly reduced by rimonabant. Compared to STD mice, HFD mice exhibited significantly higher body weight and fasting glucose levels, delayed gastric emptying and lower anandamide and CB(1) mRNA levels. N-arachidonoylserotonin (but not rimonabant) affected gastric emptying more efficaciously in HFD than STD mice. CONCLUSIONS AND IMPLICATIONS: Gastric emptying is physiologically regulated by the endocannabinoid system, which is downregulated following a HFD leading to overweight.


Asunto(s)
Moduladores de Receptores de Cannabinoides/fisiología , Grasas de la Dieta/farmacología , Regulación hacia Abajo , Endocannabinoides , Vaciamiento Gástrico/fisiología , Animales , Ácidos Araquidónicos/farmacología , Glucemia , Peso Corporal , Cromatografía Liquida , Masculino , Espectrometría de Masas , Ratones , Ratones Endogámicos ICR , Fenolsulfonftaleína , Alcamidas Poliinsaturadas/farmacología , ARN Mensajero/metabolismo , Receptor Cannabinoide CB1/efectos de los fármacos , Receptor Cannabinoide CB1/metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa
11.
Eur Rev Med Pharmacol Sci ; 12 Suppl 1: 81-93, 2008 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18924447

RESUMEN

The plant Cannabis has been known for centuries to be beneficial in a variety of gastrointestinal diseases, including emesis, diarrhea, inflammatory bowel disease and intestinal pain. delta9-tetrahydrocannabinol, the main psychotropic component of Cannabis, acts via at least two types of cannabinoid receptors, named CB1 and CB2 receptors. CB1 receptors are located primarily on central and peripheral neurons (including the enteric nervous system) where they modulate neurotransmitter release, whereas CB2 receptors are concerned with immune function, inflammation and pain. The discovery of endogenous ligands [i.e. anandamide and 2-arachidonoyl glycerol (2-AG)] for these receptors indicates the presence of a functional endogenous cannabinoid system in the gastrointestinal tract. Anatomical and functional evidence suggests the presence of CB1 receptors in the myenteric plexus, which are associated with cholinergic neurons in a variety of species, including in humans. Activation of prejunctional CB1 receptors reduces excitatory enteric transmission (mainly cholinergic transmission) in different regions of the gastrointestinal tract. Consistently, in vivo studies have shown that cannabinoids reduce gastrointestinal transit in rodents through activation of CB1, but not CB2, receptors. However, in pathophysiological states, both CB1 and CB2 receptors could reduce the increase of intestinal motility induced by inflammatory stimuli. Cannabinoids also reduce gastrointestinal motility in randomized clinical trials. Overall, modulation of the gut endogenous cannabinoid system may provide a useful therapeutic target for disorders of gastrointestinal motility.


Asunto(s)
Cannabinoides/farmacología , Motilidad Gastrointestinal/efectos de los fármacos , Receptores de Cannabinoides/efectos de los fármacos , Animales , Cannabis/química , Enfermedades Gastrointestinales/tratamiento farmacológico , Humanos , Síndrome del Colon Irritable/tratamiento farmacológico , Síndrome del Colon Irritable/fisiopatología , Transmisión Sináptica/efectos de los fármacos
13.
J Heart Lung Transplant ; 13(2): 271-5, 1994.
Artículo en Inglés | MEDLINE | ID: mdl-8031811

RESUMEN

Cardiomyoplasty has recently been used as a surgical treatment for refractory heart failure, but its results have not been well described in quality-of-life patterns. We studied the quality of life of 14 patients (13 men, with a mean age of 43.3 +/- 7.4 years) submitted to this procedure for treatment of dilated or ischemic cardiomyopathies. They were approached by personal, structured interviews before and 13 +/- 9 months after the procedure, focusing on the following areas: physical activity, food and sleep patterns, working status, social activity, sexual activity, psychologic state, and perceptions and expectations about the treatment. The presence of limitation descriptors (discomfort, disability, and dissatisfaction) was recorded for all patients. The results showed an important decrease in limitation of physical activity, sleep pattern, social activity, and perceptions and expectations about the treatment. These findings suggest that cardiomyoplasty may improve the quality of life of a selected group of patients.


Asunto(s)
Insuficiencia Cardíaca/cirugía , Músculos/trasplante , Complicaciones Posoperatorias/diagnóstico , Calidad de Vida , Actividades Cotidianas/clasificación , Adulto , Prueba de Esfuerzo , Femenino , Estudios de Seguimiento , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/fisiopatología , Hemodinámica/fisiología , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/fisiopatología
14.
Int J Hematol ; 69(4): 253-5, 1999 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10407582

RESUMEN

Chronic lymphocytic leukemia (CLL) is the most frequent leukemia in adults living in Western countries, and accounts for approximately 30% of adult leukemias. In a 15-year period in a single institution, we identified 19 patients with CLL in a group of 211 adults with leukemia (9% of adult leukemias). Of these 19 CLL patients, 8 had a Caucasian phenotype, 4 were born outside the country, and only 11 were Mexican mestizos. On the other hand, in a multicenter experience involving 1968 Mexican adults with leukemia, CLL represented 6.6% of the cases, a figure significantly lower than that reported in Caucasians (P < 0.01). CLL is the least frequent type of leukemia in Mexican mestizos, and this low prevalence may stem from the genetic origin of this racial group. The data also suggest a genetic predisposition of Caucasians to suffer from this disease.


Asunto(s)
Indígenas Norteamericanos , Leucemia Linfocítica Crónica de Células B/epidemiología , Leucemia Linfocítica Crónica de Células B/genética , Adulto , Predisposición Genética a la Enfermedad , Humanos , Incidencia , Indígenas Norteamericanos/genética , México/epidemiología
15.
Arch Med Res ; 30(5): 380-4, 1999.
Artículo en Inglés | MEDLINE | ID: mdl-10596457

RESUMEN

BACKGROUND: Methods to simplify bone marrow transplantation procedures are needed mainly in developing countries. METHODS: Between May 1993 and February 1999 in a private-practice setting, we performed 29 autotransplants in 28 patients using non-cryopreserved and unmanipulated peripheral blood stem cells mobilized from the bone marrow to the peripheral blood by means of hematopoietic growth factors. The autografting procedure was performed entirely on an outpatient basis in 19 cases (65%). The median age of the patients was 30 years, with a range of 9-67. There were 15 patients with acute leukemia (9 with acute myelogenous leukemia), 3 with chronic myelogenous leukemia, 2 with multiple myeloma, 3 with Hodgkin's disease, 2 with non-Hodgkin's lymphoma, and 4 with metastatic breast carcinoma. RESULTS: The median time to achieve > 0.5 x 10(9)/L granulocytes was 14 days (range 7-42), whereas the median time to achieve > 20 x 10(9)/L platelets was 20 days (range 5-49). The 64-month post-transplant survival was 38%, whereas the median post-transplant survival was 18 months. The transplant-related mortality was 3.4%. The approximate cost of this simplified procedure was 10.8% for in-hospital procedures and for outpatient autografts, substantially lower than figures reported from the U.S. for autotransplants. CONCLUSIONS: This simplified method for autografting patients, avoiding in-hospital stays, purging procedures and cryopreservation of the cells is feasible and results in a substantial decrease of the cost of autologous hematopoietic stem cell transplantation methods.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Células Madre Hematopoyéticas/citología , Adolescente , Adulto , Anciano , Niño , Criopreservación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/terapia , Análisis de Supervivencia , Acondicionamiento Pretrasplante , Trasplante Autólogo
16.
Forensic Sci Int ; 123(1): 13-6, 2001 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-11731191

RESUMEN

This report describes a fatal intoxication with two different drugs: clozapine and orphenadrine. A 38-year-old man was found dead in the bedroom of his residence. Near the body were found various empty pharmaceutical boxes, employed in schizophrenic therapy, two of them containing clozapine and orphenadrine. High concentrations of clozapine and orphenadrine detected in blood, urine and gastric content were related to death. These compounds were identified and quantitated by liquid-liquid extraction followed by gas chromatographic/mass spectrometry (GC/MS) analysis.


Asunto(s)
Antipsicóticos/envenenamiento , Clozapina/envenenamiento , Medicina Legal , Antagonistas Muscarínicos/envenenamiento , Orfenadrina/envenenamiento , Adulto , Antipsicóticos/sangre , Antipsicóticos/orina , Clozapina/sangre , Clozapina/orina , Cromatografía de Gases y Espectrometría de Masas , Humanos , Masculino , Antagonistas Muscarínicos/sangre , Antagonistas Muscarínicos/orina , Orfenadrina/sangre , Orfenadrina/orina
17.
Rev Invest Clin ; 51(1): 5-9, 1999.
Artículo en Español | MEDLINE | ID: mdl-10344161

RESUMEN

The peripheral blood cells of ten patients with biopsy-proven aplastic anemia were studied by means of flow-cytometry in order to assess the expression of two phosphatidylinositol-anchored surface proteins: CD55/DAF (decay accelerating factor) and CD59/MIRL (membrane inhibitor of reactive lysis). An abnormal expression was found in five of these ten patients, whereas the "traditional" tests for paroxysmal nocturnal hemoglobinuria (PNH) were positive only on two of these five individuals. Five of the aplastic patients were treated with anti-thymocyte globulin and cyclosporin-A and three entered a complete remission; of the latter, one had CD55/CD59 deficiencies whereas two did not. Along the study period one patient with a hemolytic pattern of PNH was identified. It is concluded that CD55 and/or CD59 abnormalities are frequent in Mexican mestizo patients with aplastic anemia, that the aplastic presentation of PNH is more frequent in Mexico than the hemolytic presentation, that the flow-cytometric identification of CPI-anchored proteins is more sensitive than the "traditional" PNH tests, and that some patients with PNH-aplasia may respond to intensive immunosuppressive treatment. The flow-cytometric identification of GPI-anchored cell surface proteins should replace the "traditional" tests in the identification of patients with PNH.


Asunto(s)
Anemia Aplásica/sangre , Antígenos CD55/sangre , Antígenos CD59/sangre , Indígenas Norteamericanos , Anemia Aplásica/complicaciones , Anemia Aplásica/etnología , Citometría de Flujo , Hemoglobinuria Paroxística/sangre , Hemoglobinuria Paroxística/complicaciones , Hemoglobinuria Paroxística/diagnóstico , Humanos , México
18.
Rev Invest Clin ; 52(2): 118-24, 2000.
Artículo en Inglés | MEDLINE | ID: mdl-10846434

RESUMEN

Along a 5-year period in a single institution, specific molecular markers were prospectively looked for in consecutive patients with acute leukemia, by means of polymerase chain reaction (PCR): In patients with acute lymphoblastic leukemia (ALL), the BCR/ABL and TEL-AML1 fusion transcripts as well as clonotypic immunoglobulin gene rearrangements were investigated, whereas in patients with acute myelogenous leukemia (AML) the PML-RAR alpha, AML1-ETO and CBF beta-MYH11 fusion proteins were assessed. Specific molecular markers were identified in 15/75 patients: Four with ALL (three with clonotypic IgG rearrangements and one with BCR/ABL) and 11 with AML (nine with the PML/RAR alpha fusion protein--M3 AML-, and two with the AML1/ETO fusion protein--M2 AML-). During follow-up periods ranging from 1 to 60 months, seven patients cleared the residual disease assessed by PCR (RD-PCR), whereas eight patients had either persistence of RD-PCR or a molecular relapse. For patients without or with RD-PCR, the 30-month survival (SV) was 86% and 14%, respectively, whereas median SV was > 60 and two months, also respectively (p < 0.01). Six of eight patients with detectable RD-PCR died, all of them within three months after the detection of the RD-PCR, whereas two of the patients that relapsed were rescued with treatment and entered a second molecular remission. Two of the three molecular relapses were detected without an overt morphological relapse. It is concluded that PCR is a valuable method for assessing residual disease and that early diagnosis of relapses may lead into effective salvage treatment in some instances.


Asunto(s)
Biomarcadores de Tumor/análisis , Leucemia/patología , Proteínas de Fusión Oncogénica/análisis , Reacción en Cadena de la Polimerasa/métodos , Enfermedad Aguda , Adolescente , Adulto , Anciano , Niño , Preescolar , ADN Complementario/genética , Femenino , Humanos , Inmunofenotipificación , Leucemia/genética , Leucemia/mortalidad , Tablas de Vida , Masculino , Persona de Mediana Edad , Neoplasia Residual , Células Madre Neoplásicas/química , Células Madre Neoplásicas/patología , Pronóstico , Estudios Prospectivos , ARN Mensajero/genética , Análisis de Supervivencia
19.
Rev Invest Clin ; 49(3): 221-3, 1997.
Artículo en Inglés | MEDLINE | ID: mdl-9294962

RESUMEN

Two Mexican mestizo families with Hb Lepore Washington-Boston are described. One family is from Cordova, in the State of Veracruz, in the East coast of Mexico: the proband is a 44-year old asymptomatic male with italian ancestors; the other family is from the city of Durango, State of Durango, in the northwestern part of the country: the propositus is a 32-year old pregnant female with French ancestors. In both cases the Hb Lepore was identified by alkaline electrophoresis and characterized by high performance liquid chromatography and PCR with specific probes flanking the deletion frame. The beta-haplotype in both families was +(-)-(-)-(++), the commonest beta-haplotype reported with this mutation. This paper describes the first cases of this entity in Mexico.


Asunto(s)
Globinas/genética , Hemoglobinas Anormales/análisis , Talasemia beta/genética , Adulto , Electroforesis de las Proteínas Sanguíneas , Niño , Femenino , Francia/etnología , Frecuencia de los Genes , Haplotipos/genética , Hemoglobinas Anormales/genética , Heterocigoto , Humanos , Indígenas Norteamericanos/genética , Italia/etnología , Masculino , México/epidemiología , Persona de Mediana Edad , Embarazo , Complicaciones Hematológicas del Embarazo , Eliminación de Secuencia , Población Blanca/genética , Talasemia beta/sangre , Talasemia beta/etnología
20.
Arq Bras Cardiol ; 62(3): 171-4, 1994 Mar.
Artículo en Portugués | MEDLINE | ID: mdl-7980078

RESUMEN

PURPOSE: To assess quality of life in patients submitted to surgical treatment of congenital heart disease in infancy. Quality of life has been assessed over social sciences backgrounds, but we have focused on the patient self-perception of their disease and related problems too. METHODS: We studied 134 adolescents, age ranged from 12 to 19 year-old, of both sexes, with any congenital heart disease, submitted to surgical treatment in infancy. They answered a questionnaire that covered their clinical, social, emotional, education and professional status. RESULTS: Ninety one percent qualified their lives as good because were symptom-free and living well without and physical restriction. CONCLUSION: The school performance was similar to the overall population engaged in Brazilian public schools. Their feelings, social relations and future plans were equal to the normal adolescents.


Asunto(s)
Adolescente , Cardiopatías Congénitas/cirugía , Calidad de Vida , Niño , Femenino , Cardiopatías Congénitas/psicología , Humanos , Masculino , Encuestas y Cuestionarios
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