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1.
Alcohol Alcohol ; 55(2): 157-163, 2020 Mar 19.
Artículo en Inglés | MEDLINE | ID: mdl-31897468

RESUMEN

AIMS: Platelet-derived growth factor (PDGF) promotes liver collagen deposition, acting on hepatic stellate cells. Despite this, low serum PDGF levels were reported in chronic hepatitis C or B infection, although some studies yield the opposite result. Since PDGF may be related not only to fibrosis but also with vascular, neuronal or muscle disease, it is important to analyze its behavior in alcoholics. METHODS: In total, 17 controls and 62 alcoholic patients consecutively admitted to the hospitalization unit of the Internal Medicine Service were included. We determined serum levels of PDGF C, routine laboratory evaluation, tumor necrosis factor-α, interleukin (IL)-6 and IL-8 and malondialdehyde (MDA) levels. We analyzed the relationships between PDGF and liver function, ethanol intake and inflammatory reaction by both univariate and multivariate analysis to discern which variables PDGF levels depend on. RESULTS: Serum PDGF levels were significantly lower among patients (675 ± 466 pg/ml) than among controls (1074 ± 337 pg/ml; Z = 3.70; P < 0.001), and even lower among cirrhotics (549 ± 412 among cirrhotics vs 778 ± 487 among non-cirrhotics; Z = 2.33; P = 0.02). PDGF levels showed a direct correlation with prothrombin activity (ρ = 0.50; P < 0.001), platelet count (ρ = 0.44; P < 0.001) and inverse ones with bilirubin (ρ = -0.39; P = 0.002), IL-6 (ρ = -0.33; P = 0.016), IL-8 (ρ = -0.47; P < 0.001), and MDA levels (ρ = -0.44; P < 0.001). By multivariate analysis, only prothrombin activity and platelet count were independently related to PDGF. CONCLUSION: PDGF-C levels are decreased in alcoholics, especially among cirrhotics. Multivariate analysis discloses that only prothrombin activity and platelet count are independently related to PDGF-C levels.


Asunto(s)
Alcoholismo/sangre , Linfocinas/sangre , Consumo de Bebidas Alcohólicas/efectos adversos , Alcoholismo/complicaciones , Estudios de Casos y Controles , Femenino , Humanos , Interleucina-6/sangre , Interleucina-8/sangre , Cirrosis Hepática Alcohólica/sangre , Cirrosis Hepática Alcohólica/complicaciones , Pruebas de Función Hepática , Masculino , Malondialdehído/sangre , Persona de Mediana Edad , Factor de Crecimiento Derivado de Plaquetas , Factor de Necrosis Tumoral alfa/sangre
2.
Alcohol Alcohol ; 54(3): 204-208, 2019 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-30860544

RESUMEN

AIMS AND BACKGROUND: Alpha Klotho is a transmembrane protein that serves as co-receptor for FGF23. Ectodomain of membrane bound α Klotho may be shed by membrane bound proteases (activated, among other factors, by tumor necrosis factor (TNF)-α) generating the soluble form of the protein (sKl) that functions as a hormone by itself. It modulates calcium influx into cells, blunts IGF-1/Insulin signaling, promotes synthesis of antioxidants, generally slows down tumor progression, delays cell senescence, is neuroprotective and promotes oligodendrocyte maturation and myelin synthesis, and muscle rejuvenation. It may be involved in inflammation and exerts antifibrogenic effects. Some of these pathways may become altered in alcoholism or liver cirrhosis, but data are scattered and scarce and an update is required. METHOD: Literature survey. RESULTS AND CONCLUSIONS: Alcohol consumption in non-alcoholics is inversely related to sKl, but alcoholic cirrhotics showed higher-than-normal sKl values in association with liver function derangement. In hepatoma cells, the intensity of Klotho staining was related to faster tumor progression and a shortened life span. Among severe alcoholic cirrhotics sKl is directly related to serum TNF-α levels, and, inversely, to brain atrophy. Given the antioxidant, anti-inflammatory, and antifibrogenic effects of Klotho, perhaps the increase in cirrhosis (and in other inflammatory conditions, such as sepsis or cancer) reflects an attempt to regulate increased inflammation, but clinical and experimental research is urgently needed in this field.


Asunto(s)
Alcoholismo/fisiopatología , Glucuronidasa/fisiología , Cirrosis Hepática/fisiopatología , Factor-23 de Crecimiento de Fibroblastos , Humanos , Proteínas Klotho
3.
Alcohol Alcohol ; 54(5): 472-476, 2019 Jan 09.
Artículo en Inglés | MEDLINE | ID: mdl-31188414

RESUMEN

INTRODUCTION: Transforming growth factor beta-1 (TGF-ß1) is a pleiotropic cytokine. Its relationship with atherosclerosis is debatable, protective or deleterious effects have been described. Alcoholics are at increased vascular risk. Although TGF-ß1 is increased in alcoholics, its role on vascular risk factors has not been analyzed. This is the objective of this study. PATIENTS AND METHODS: 79 heavy alcoholics and 34 controls were included. Calcium deposition in the aortic arch was assessed in the plain thorax X-ray film. Ankle-brachial index was recorded in 48 patients. All the patients underwent complete laboratory evaluation, including serum levels of TGF-ß1, tumor necrosis factor (TNF)-α, interleukin (IL)-4, IL-6, and interferon-γ (IFN-γ).We analyzed the relationships between TGF-ß1 and vascular risk factors by both univariate (parametric or non parametric tests), or multivariate analysis to discern on which variables TGF-ß1 levels depend. RESULTS: Serum TGF-ß1 levels were higher among patients (t = 2.73; P = 0.008), but no differences exist among cirrhotics (17246 ± 11,021 pg/mL) and non-cirrhotics (21,340 ± 12,442 pg/mL). TGF-ß1 showed significant correlations with total cholesterol (r = 0.28; P = 0.017) and HDL- cholesterol (r = 0.25; P = 0.042), and inverse correlations with body mass index (BMI; ρ = -0.37; P = 0.004), IL-4 (ρ = -0.31; P = 0.009), INF-γ (ρ = -0.28; P = 0.001), and IL-6 (ρ = -0.38; P = 0.001). By multivariate analysis, only BMI, IL-6 and HDL-cholesterol showed independent relationships with TGF-ß1. No relationships were observed with ankle-brachial index or calcium in the aortic arch, hypertension, diabetes, left ventricular hypertrophy or atrial fibrillation. CONCLUSION: TGF-ß1 levels are increased in alcoholics, but are unrelated to vessel wall calcification or arterial stiffness.


Asunto(s)
Alcohólicos , Alcoholismo/sangre , Factor de Crecimiento Transformador beta1/sangre , Calcificación Vascular/sangre , Rigidez Vascular/fisiología , Anciano , Alcoholismo/diagnóstico , Alcoholismo/epidemiología , Aorta Torácica/metabolismo , Aorta Torácica/patología , Biomarcadores/sangre , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Calcificación Vascular/diagnóstico , Calcificación Vascular/epidemiología
4.
Alcohol Alcohol ; 48(3): 278-82, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23296214

RESUMEN

AIMS: Sclerostin is an endogenous inhibitor of the Wnt/ß-catenin pathway secreted by osteocytes, which inhibits osteoblast function, differentiation and survival. As a consequence, sclerostin tends to decrease bone mass. Alcoholics frequently present osteoporosis, mainly due to decreased bone synthesis. The behaviour of sclerostin in these patients is unknown. The aim of this work was to analyse the relationship between serum sclerostin levels and bone mineral density (BMD), ethanol consumption, nutritional status, liver function derangement and biomarkers of bone homeostasis in alcoholic patients. METHODS: We included 31 alcoholic patients, of whom 11 were infected with Hepatitis C virus (HCV) and 7 age and sex-matched controls. All underwent densitometry, and serum sclerostin, osteocalcin, collagen telopeptide, parathyroid hormone (PTH), vitamin D, cortisol and testosterone were determined. RESULTS: Sclerostin levels were significantly higher in patients (30.95 ± 18.91 pmol/l) than controls (t = 4.4; P < 0.001), especially in non-HCV patients; they showed an inverse correlation with osteocalcin, prothrombin activity and serum albumin, and a direct correlation with bilirubin and telopeptide, but not with BMD, nutritional status or ethanol intake. CONCLUSIONS: Serum sclerostin was raised in alcoholic patients, and it correlated with decreased markers of bone synthesis and increased markers of bone breakdown. The elevation in sclerostin levels was clearly related with liver function, but not with ethanol intake, nutritional status or concomitant HCV infection.


Asunto(s)
Alcoholismo/sangre , Proteínas Morfogenéticas Óseas/sangre , Proteínas Adaptadoras Transductoras de Señales , Adulto , Consumo de Bebidas Alcohólicas , Biomarcadores/sangre , Densidad Ósea , Ensayo de Inmunoadsorción Enzimática , Femenino , Marcadores Genéticos , Hepatitis C/complicaciones , Homeostasis/efectos de los fármacos , Hormonas/sangre , Humanos , Pruebas de Función Hepática , Masculino , Persona de Mediana Edad , Estado Nutricional/efectos de los fármacos , Proyectos Piloto
5.
Alcohol Alcohol ; 47(4): 390-6, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22510812

RESUMEN

UNLABELLED: In alcoholics, the activation of Kupffer cells by gram negative bacteriae leads to an inflammatory response and cytokine secretion, which in turn activate T-lymphocytes. Possibly, Th-1 lymphocytes are activated first, followed by a Th-2 response. Th-2 cytokines, especially interleukin (IL)-13 (scarcely studied in alcoholics), may be involved in the progression to chronic stages. AIMS: The aim of the study was to analyze the relationship of Th-1 and Th-2 cytokines with liver function, alcohol consumption, nutritional status and survival. METHODS: Serum Th-1 [interferon-γ (IFN-γ)] and Th-2 cytokines (IL-4, IL-13), IL-10, IL-6 and tumor necrosis factor (TNF-α), were determined for 18 controls and 47 stable alcoholics with variable liver function impairment, who were followed-up during a median time of 90 months, a period during which 14 patients died. RESULTS: IL-4 was lower among patients; no differences were observed regarding IL-6, but the remaining ILs were higher among alcoholics. IL-10 and IL-13 were even higher in cirrhotics (Z = 2.88, P = 0.004, and Z = 2.09, P = 0.037, respectively). A significant, direct, correlation was observed between IL-13 and IL-10 (ρ = 0.49, P = 0.001), and non-significant, inverse ones were observed between IFN-γ and IL-13 (ρ = -0.23), IL-4 (ρ = -0.14) and IL-10 (ρ = -0.09). IL-13 and IL-10 were inversely related with liver function and, directly with immunoglobulin A levels, but not with survival. CONCLUSION: Serum IFN-γ values were increased in alcoholics, who also showed raised IL-13 and IL-10, but lower IL-4 levels. Given the immunomodulatory roles of IL-10 and IL-13, this increase may be interpreted as a compensatory rise of anti-inflammatory cytokines. We failed to find any relation with mortality.


Asunto(s)
Alcoholismo/sangre , Interferón gamma/sangre , Interleucinas/sangre , Cirrosis Hepática Alcohólica/sangre , Hígado/fisiopatología , Factor de Necrosis Tumoral alfa/sangre , Adulto , Alcoholismo/complicaciones , Alcoholismo/mortalidad , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Humanos , Cirrosis Hepática Alcohólica/fisiopatología , Pruebas de Función Hepática , Masculino , Persona de Mediana Edad , Evaluación Nutricional , Estadísticas no Paramétricas
6.
Alcohol Alcohol ; 45(3): 223-30, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20190231

RESUMEN

AIMS: Chronic myopathy has been described in alcoholics, characterized by atrophy of type II fibres, and vitamin D deficiency. Low serum vitamin D levels are frequent in alcoholics. The possibility exists that serum vitamin D levels are related to muscle changes in a murine experimental model. METHODS: Histological analysis of the right gastrocnemius muscle was performed in four groups of adult Sprague-Dawley rats, sacrificed after 5 weeks of treatment following the Lieber-DeCarli model. We studied the association between muscle histological changes and the activity of glutathione peroxidase (GPX), superoxide dismutase (SOD) and lipid peroxidation products (malondialdehyde); parathyroid hormone (PTH), insulin-like growth factor 1 (IGF-1), free testosterone, 1,25 dihydroxyvitamin D3 (vitamin D) and corticosterone; and serum calcium and magnesium. RESULTS: Alcoholic animals showed type IIa and IIb fibre atrophy, especially the low-protein-fed ones, an effect dependent on protein deficiency. A significant relationship was observed between serum vitamin D levels and IIa fibre area (rho = 0.56, P = 0.002), and also, as a trend, between vitamin D and type IIb fibre area (rho = 0.39, p = 0.053); between vitamin D and muscle GPX (rho = 0.40, P = 0.025) and SOD activities (rho = 0.43, P = 0.012). Muscle GPX activity was significantly related with type I fibre area (rho = 0.49, P = 0.01) and muscle SOD, with type IIa fibre area (rho = 0.38, P = 0.045). Serum testosterone was also related with type IIa fibre area (rho = 0.61, P < 0.001). No relation was observed between serum PTH, corticosterone, or IGF-1 and fibre area PTH and antioxidant systems. Multiple regression analysis disclosed that the only parameter independently related with type IIa fibre area was serum vitamin D. CONCLUSION: Low vitamin D levels are related to muscle fibre atrophy, and altered levels of muscle antioxidant enzymes could play a role in alcoholic myopathy.


Asunto(s)
Depresores del Sistema Nervioso Central/toxicidad , Etanol/toxicidad , Fibras Musculares Esqueléticas/patología , Enfermedades Musculares/inducido químicamente , Enfermedades Musculares/patología , Deficiencia de Vitamina D/patología , Animales , Antioxidantes/metabolismo , Atrofia , Calcio/sangre , Glutatión Peroxidasa/metabolismo , Hormonas/sangre , Magnesio/sangre , Masculino , Malondialdehído/metabolismo , Fibras Musculares de Contracción Rápida/patología , Músculo Esquelético/patología , Estrés Oxidativo , Ratas , Ratas Sprague-Dawley , Albúmina Sérica/metabolismo , Superóxido Dismutasa/metabolismo , Vitamina D/metabolismo
7.
Ann Nutr Metab ; 55(4): 351-7, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19851063

RESUMEN

BACKGROUND: Liver steatosis in chronic hepatitis C virus (HCV) infection is multifactorial. Therefore, there is not necessarily a relation between obesity and liver fat.On the other hand, body fat secretes cytokines, and cytokines and oxidative damage play important roles on progression of liver disease. METHODS: We analyzed the relationships between liver fat (assessed by histomorphometry) and trunk and subcutaneous fat (waist perimeter, triceps skinfold, BMI); the relationships between liver and body fat and cytokines (IL-6, TNF-alpha, IL-8, IFN-gamma, IL-4), adipokines (adiponectin and TIMP-1), and serum malondiladehyde and antioxidants (glutathione peroxidase and superoxide dismutase (SOD) activities); and the relationships of these data with histological changes in 40 HCV-infected non-alcoholic patients. RESULTS: Significant correlations were found between liver fat and waist perimeter and BMI, and between serum TIMP-1 and liver fat. Serum TIMP-1 was significantly related to body fat stores; serum IL-6 and IFN-gamma were related to histological inflammation. Patients with waist perimeter >102 cm (men) or 88 cm (women) showed increased liver fat. In 38.8% of non-obese patients, liver fat accumulation was intense. CONCLUSIONS: There is a relationship between visceral fat, serum TIMP-1 and liver steatosis. However, at least in some patients, factors different from mere adiposity play a role in liver steatosis.


Asunto(s)
Adipoquinas/sangre , Tejido Adiposo/fisiopatología , Citocinas/sangre , Hígado Graso/fisiopatología , Hepatitis C Crónica/fisiopatología , Estrés Oxidativo/fisiología , Adulto , Índice de Masa Corporal , Hígado Graso/complicaciones , Hígado Graso/patología , Femenino , Hepatitis C Crónica/complicaciones , Humanos , Grasa Intraabdominal/fisiopatología , Masculino , Persona de Mediana Edad , Obesidad Abdominal/complicaciones , Obesidad Abdominal/fisiopatología , Índice de Severidad de la Enfermedad , Inhibidor Tisular de Metaloproteinasa-1/sangre , Circunferencia de la Cintura
8.
Alcohol Alcohol ; 43(3): 314-9, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18310599

RESUMEN

OBJECTIVES: This study was performed in order to assess nutritional status of 77 alcoholic patients. METHODS: Patients underwent a total body double-energy X-ray absorptiometry (DEXA) analysis, with estimation of lean and fat mass at different parts of the body. RESULTS: Lean mass, but not fat mass, was significantly reduced among alcoholics, compared to 31 age-matched controls, especially at right arm, legs, and total body. Lean mass at both arms was significantly related to liver function parameters (albumin, prothrombin activity, bilirubin) and, inversely, with ethanol consumption. The 24 patients who died during a follow-up period of 88 months showed less lean mass at both arms, trunk, and left leg, and also less fat at the left arm, than survivors. When right and left arm lean mass were classified in quartiles, Kaplan-Meier curves showed significant differences between dead and survivors. Left arm lean mass was the parameter which was independently related to mortality when encephalopathy was not included in a stepwise Cox regression analysis, but was displaced by this last parameter when it was also introduced in the analysis. CONCLUSION: Lean mass is reduced in alcoholics, is related to liver function derangement and ethanol consumption, and is related to mortality.


Asunto(s)
Absorciometría de Fotón/métodos , Alcoholismo/diagnóstico por imagen , Alcoholismo/fisiopatología , Estado Nutricional/fisiología , Adulto , Alcoholismo/diagnóstico , Composición Corporal/fisiología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Pronóstico
10.
Food Chem Toxicol ; 43(9): 1333-43, 2005 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-15869836

RESUMEN

A chronic form of myopathy has been described in alcoholics, characterized by atrophy of type II fibers, due both to reduced protein synthesis and increased protein breakdown. Increased production of reactive oxygen species could probably play a role in increased protein breakdown. In addition, treatment with zinc might be beneficial, since it acts as a cofactor of several enzymes involved in the synthesis of proteins and antioxidants as copper-zinc-superoxidedismutase (SOD) and selenium dependent glutathione peroxidase (GPX). Based on these facts, we analyze the relative and combined effects of ethanol, protein malnutrition and treatment with zinc, 227 mg/l in form of zinc sulphate, on muscle changes in 8 groups of adult Sprague-Dawley rats fed following the Lieber-de Carli model during 5 weeks. We also study the association between muscle histological changes and the activity of GPX, SOD and lipid peroxidation products (MDA), with hormones such as IGF-1, and with trace elements involved in antioxidant systems and/or in lipid peroxidation, such as selenium, copper, zinc, and iron. We found type IIa and IIb fiber atrophy in the alcoholic animals, especially in the low-protein fed ones. This effect was mainly due to protein deficiency. Zinc played no role at all. Muscle iron increased in ethanol, low protein fed rats, either with or without zinc, and was directly related with muscle MDA levels, which in turn were related with muscle atrophy, as was also found for serum IGF-1 levels. Ethanol was the main responsible for all these changes, although protein undernutrition also played an independent role in MDA levels. A positive interaction between ethanol and protein deficiency on serum IGF-1 was also detected. These results suggest that both protein deficiency and ethanol contribute to muscle atrophy observed in alcoholized rats; this atrophy is associated with increased lipid peroxidation and muscle iron overload. Treatment with zinc sulphate confers no benefit.


Asunto(s)
Depresores del Sistema Nervioso Central/toxicidad , Suplementos Dietéticos , Etanol/toxicidad , Enfermedades Musculares/inducido químicamente , Enfermedades Musculares/prevención & control , Zinc/uso terapéutico , Animales , Antioxidantes/metabolismo , Cobre/metabolismo , Glutatión Peroxidasa/metabolismo , Hormonas/sangre , Hierro/metabolismo , Peroxidación de Lípido/efectos de los fármacos , Masculino , Fibras Musculares Esqueléticas/patología , Proteínas Musculares/metabolismo , Músculo Esquelético/metabolismo , Músculo Esquelético/patología , Enfermedades Musculares/patología , Deficiencia de Proteína/metabolismo , Ratas , Ratas Sprague-Dawley , Selenio/metabolismo , Albúmina Sérica/metabolismo , Superóxido Dismutasa/metabolismo , Zinc/metabolismo
11.
Food Chem Toxicol ; 43(10): 1497-505, 2005 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15964119

RESUMEN

Ethanol consumption leads to bone alterations, mainly osteoporosis. Ethanol itself may directly alter bone synthesis, but other factors, such as accompanying protein malnutrition--frequently observed in alcoholics, chronic alcoholic myopathy with muscle atrophy, alcohol induced hypogonadism or hypercortisolism, or liver damage, may all contribute to altered bone metabolism. Some data suggest that zinc may exert beneficial effects on bone growth. Based on these facts, we analyzed the relative and combined effects of ethanol, protein malnutrition and treatment with zinc, 227 mg/l in the form of zinc sulphate, on bone histology, biochemical markers of bone formation (osteocalcin) and resorption (urinary hydroxyproline excretion), and hormones involved in bone homeostasis (insulin growth factor 1 (IGF-1), vitamin D, parathormone (PTH), free testosterone and corticosterone), as well as the association between these parameters and muscle fiber area and liver fibrosis, in eight groups of adult Sprague Dawley rats fed following the Lieber de Carli model during 5 weeks. Ethanol showed an independent effect on TBV (F=14.5, p<0.001), causing it to decrease, whereas a low protein diet caused a reduction in osteoid area (F=8.9, p<0.001). Treatment with zinc increased osteoid area (F=11.2, p<0.001) and serum vitamin D levels (F=3.74, p=0.057). Both ethanol (F=45, p<0.001) and low protein diet (F=46.8, p<0.01) decreased serum osteocalcin levels. Ethanol was the only factor independently related with serum IGF-1 (F=130.24, p<0.001), and also showed a synergistic interaction with protein deficiency (p=0.027). In contrast, no change was observed in hydroxyproline excretion and serum PTH levels. No correlation was found between TBM and muscle atrophy, liver fibrosis, corticosterone, or free testosterone levels, but a significant relationship was observed between type II-b muscle fiber area and osteoid area (rho=0.34, p<0.01). Osteoporosis is, therefore, present in alcohol treated rats. Both alcohol and protein deficiency lead to reduced bone formation. Muscle atrophy is related to osteoid area, suggesting a role for chronic alcoholic myopathy in decreased bone mass. Treatment with zinc increases osteoid area, but has no effect on TBV.


Asunto(s)
Huesos/patología , Depresores del Sistema Nervioso Central/toxicidad , Etanol/toxicidad , Osteoporosis/inducido químicamente , Zinc/farmacología , Animales , Huesos/efectos de los fármacos , Suplementos Dietéticos , Electrólitos/sangre , Hormonas/sangre , Hidroxiprolina/orina , Hígado/patología , Cirrosis Hepática/inducido químicamente , Cirrosis Hepática/patología , Masculino , Fibras Musculares Esqueléticas/patología , Enfermedades Musculares/inducido químicamente , Enfermedades Musculares/patología , Tamaño de los Órganos/efectos de los fármacos , Osteoporosis/patología , Deficiencia de Proteína/complicaciones , Deficiencia de Proteína/patología , Ratas , Ratas Sprague-Dawley , Ratas Wistar , Albúmina Sérica/metabolismo , Columna Vertebral/patología
12.
Biol Trace Elem Res ; 105(1-3): 37-51, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-16034152

RESUMEN

This study was performed to determine the levels of lead (Pb) and cadmium (Cd) in 63 bone samples of the prehispanic population of the island El Hierro, comparing them with the values obtained on 98 prehispanic samples from Tenerife, Fuerteventura, Gran Canaria, and La Palma, all of them in the Canary Islands, and with eight modern samples who served as controls. Prehispanic individuals from El Hierro showed the lowest bone Pb values of all the archipelago (0.72+/-1.01 mg/kg), significantly different (F=6.9, p<0.001) from the values obtained for the population of other islands such as Tenerife (4.87+/-5.36 mg/kg) or Fuerteventura (4.45+/-7.85 mg/kg) and also from those of the modern population (30.53+/-14.62 mg/kg). On the other hand, bone Cd, although slightly lower in the ancient population groups, was not significantly different when compared with the modern one. In addition, no differences were observed in bone Cd among the ancient population of the different islands. Bone lead but not cadmium kept an inverse significant relationship with the distance of the burial site both to south Spain (r=-0.31) and Atlantic Morocco (r=-0.28, p<0.001 in both cases).


Asunto(s)
Huesos/metabolismo , Cadmio/metabolismo , Plomo/metabolismo , Adulto , África del Norte , Antropología Física , Historia Antigua , Humanos , Masculino , Metales Pesados/toxicidad , Paleontología , España , Tibia/metabolismo , Tibia/patología , Factores de Tiempo
13.
An Med Interna ; 22(2): 79-81, 2005 Feb.
Artículo en Español | MEDLINE | ID: mdl-15898885

RESUMEN

We report the case of a 56 year old cirrhotic woman who presented during the course of a tuberculous spondylodiscitis affecting T9-T10, a clinical picture consistent with neuralgic amyotrophy affecting the right shoulder first, and later also the left one (Parsonage-Turner syndrome). This is an uncommonly diagnosed entity of unknown etiology and pathogenesis. Magnetic resonance images (MRI) include high signal intensity in supra and infraspinatus muscles and other muscles of the shoulder girdle, compatible with muscle oedema associated with denervation. These features, combined with the ability of MRI to exclude local problems as tendinitis stresses the importance of this technique in the diagnostic evaluation of patients with neuralgic amyotrophy.


Asunto(s)
Discitis/complicaciones , Discitis/microbiología , Cirrosis Hepática/complicaciones , Dolor/etiología , Enfermedades del Sistema Nervioso Periférico/etiología , Vértebras Torácicas , Tuberculosis de la Columna Vertebral/complicaciones , Brazo , Femenino , Humanos , Persona de Mediana Edad
14.
Drug Alcohol Depend ; 22(1-2): 27-31, 1988 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-3234231

RESUMEN

A study of bone marrow cell content was carried out in 23 non-cirrhotic alcoholics, 20 cirrhotic alcoholics and 19 cirrhotic non-alcoholics compared with a control group of 12 healthy subjects, by means of sternal aspiration and bone marrow biopsy with histomorphometric quantification of fat in the latter. Although in the three pathological groups the mean values of fat area were superior to those of the control group, the only statistical differences found were between non-alcoholic cirrhotic and control subjects. The differences disappeared under covariance analysis with age as the correcting factor, showing a correlation between age and bone marrow fat content. To conclude from the biopsy the bone marrow of the cirrhotic is not hypercellular, contrary to the so far accepted findings obtained through sternal aspiration. Moreover, between the subjective global cellularity evaluation by biopsy and aspiration there was an important disagreement in 23.8% and an absolute agreement only 28.6% of cases. The non-existence of a linear correlation between fat content in bone marrow and liver, suggests that the two phenomena do not develop simultaneously.


Asunto(s)
Alcoholismo/patología , Médula Ósea/patología , Cirrosis Hepática Alcohólica/patología , Adulto , Anciano , Anciano de 80 o más Años , Anemia Aplásica/patología , Biopsia con Aguja , Femenino , Humanos , Masculino , Persona de Mediana Edad
15.
Drug Alcohol Depend ; 22(3): 195-203, 1988 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-3234242

RESUMEN

In 117 patients affected by chronic alcoholic liver disease, we have histomorphometrically determined hepatocyte and nuclear areas, total amount of fat and total amount of fibrosis, comparing them with the following clinical and biochemical parameters: ascites, encephalopathy, jaundice, spiders, collateral circulation, splenomegaly, prothrombin activity, serum albumin, gammaglobulin, bilirubin, ASAT, ALAT, GGT, leukocyte and platelet count, and daily consumption of ethanol. Both hepatocyte and nuclear areas closely correlated with most of the parameters indicative of hepatic function derangement, whereas fat amount correlated with them inversely, but positively with the daily consumption of ethanol. The degree of fibrosis was greater in patients with a worse hepatic function, and there was a direct relationship between the degree of fibrosis and hepatocyte and nuclear areas, and an inverse one between the degree of fibrosis and the total amount of fat.


Asunto(s)
Hígado Graso Alcohólico/patología , Hepatopatías Alcohólicas/patología , Hígado/patología , Adulto , Núcleo Celular/patología , Enfermedad Crónica , Hígado Graso Alcohólico/fisiopatología , Femenino , Fibrosis , Humanos , Hepatopatías Alcohólicas/fisiopatología , Masculino , Persona de Mediana Edad
16.
Drug Alcohol Depend ; 33(2): 151-6, 1993 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-8261879

RESUMEN

Serum neopterin levels have been determined by RIA in 105 patients affected by chronic alcoholic liver disease, 68 of them cirrhotics, and in 12 controls. Serum Neopterin was significantly higher in patients than in controls, correlated with Pughs' score and Child's classification, and also with serum laminin and type III collagen N-terminal propeptide, and with histomorphometrically determined liver fibrosis. Serum neopterin levels were higher in patients who died than in survivors, serum neopterin levels over 19.15 nmol/l being associated with higher mortality rates.


Asunto(s)
Biopterinas/análogos & derivados , Cirrosis Hepática Alcohólica/diagnóstico , Adulto , Biopsia , Biopterinas/sangre , Causas de Muerte , Femenino , Hepatitis B/diagnóstico , Hepatitis B/mortalidad , Hepatitis B/patología , Hepatitis C/diagnóstico , Hepatitis C/mortalidad , Hepatitis C/patología , Humanos , Hígado/patología , Cirrosis Hepática Alcohólica/mortalidad , Cirrosis Hepática Alcohólica/patología , Pruebas de Función Hepática , Masculino , Persona de Mediana Edad , Neopterin , Radioinmunoensayo , Tasa de Supervivencia
17.
Drug Alcohol Depend ; 39(1): 23-7, 1995 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-7587970

RESUMEN

Chronic alcoholic liver disease is associated with several immunological alterations: depressed T-cell function, low serum gamma-interferon, and high serum tumour necrosis factor (TNF-alpha) and interleukin levels. Therefore, macrophage activity seems to be enhanced. Some cytokines, such as TNF-alpha, exert adverse effects on chronic alcoholic liver disease, so that protracted activation of macrophages with continuous TNF-alpha production may aggravate alcoholic hepatitis. Based on these facts we have sequentially determined serum levels of TNF-alpha, 1 beta interleukin (IL-1 beta), gamma-interferon and neopterin--a macrophage product--at admission, and at the end of the first, third and sixth weeks after admission, of 43 patients affected by alcoholic hepatitis, and of 20 age-matched sanitary workers as controls. Our patients showed higher levels of neopterin and lower levels of IL-1 beta and gamma-interferon than the controls; TNF-alpha levels in our patients were almost significantly higher than in controls. TNF-alpha levels at admission were higher in the patients who died (P = 0.025). TNF-alpha and neopterin levels showed no trend to normalization in patients who died, with higher levels of neopterin at first and third weeks and higher TNF-alpha and gamma-interferon levels at first week. Using logistic regression analysis, serum TNF-alpha levels at admission showed significant (P = 0.045), independent effects on mortality, as well as serum neopterin (P = 0.0026) at the first week. Thus, enhanced macrophage activity, measured by serum levels of TNF-alpha and neopterin seems to be related to a worse prognosis in alcoholic hepatitis.


Asunto(s)
Citocinas/sangre , Hepatitis Alcohólica/inmunología , Anciano , Biopterinas/análogos & derivados , Biopterinas/sangre , Femenino , Humanos , Interferón gamma/sangre , Interleucina-1/sangre , Activación de Linfocitos/inmunología , Activación de Macrófagos/inmunología , Masculino , Persona de Mediana Edad , Neopterin , Factor de Necrosis Tumoral alfa/metabolismo
18.
Drug Alcohol Depend ; 26(2): 195-8, 1990 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-2242721

RESUMEN

Liver Fe and Cu contents (determined by atomic absorption spectrophotometry) were found to be higher in alcoholized male albino mice than in controls. Alcoholized animals killed at the 180th day of life also showed higher liver Fe and Cu contents than the alcoholized animals sacrificed at the 85th day of life. A significant correlation was established between liver Fe content and size of the pericentral hepatocytes and their nuclei. No differences between alcoholic and controls were obtained regarding liver Zn content, whereas Mn showed a clear tendency to be higher in the alcoholics.


Asunto(s)
Alcoholismo/patología , Cobre/análisis , Hierro/análisis , Hepatopatías Alcohólicas/patología , Hígado/patología , Manganeso/análisis , Zinc/análisis , Animales , Cirrosis Hepática Alcohólica/patología , Masculino , Ratones
19.
Drug Alcohol Depend ; 27(3): 219-22, 1991 May.
Artículo en Inglés | MEDLINE | ID: mdl-1653130

RESUMEN

Peripheral and autonomic neuropathy has been evaluated, both by clinical and neurophysiological and by clinical methods, respectively, in 33 alcoholics, 20 of them cirrhotics. Nerve dysfunction was compared with liver function parameters, the Child-Pugh score, and parameters derived from ethanol consumption. Few relationships were obtained between the autonomic and peripheral nerve dysfunction, and between these and liver function impairment, although Pugh's score was higher when hyporeflexia and altered heart rate response to orthostatism were present. Thus, in the alcoholic, autonomic and peripheral neuropathy, seem to be dependent on each other, whereas there appears to be a weak correlation between liver function and both autonomic and peripheral neuropathy.


Asunto(s)
Enfermedades del Sistema Nervioso Autónomo/etiología , Cirrosis Hepática Alcohólica/complicaciones , Enfermedades del Sistema Nervioso Periférico/etiología , Adulto , Enfermedades del Sistema Nervioso Autónomo/diagnóstico , Femenino , Encefalopatía Hepática/complicaciones , Encefalopatía Hepática/diagnóstico , Humanos , Cirrosis Hepática Alcohólica/diagnóstico , Pruebas de Función Hepática , Masculino , Persona de Mediana Edad , Examen Neurológico , Enfermedades del Sistema Nervioso Periférico/diagnóstico
20.
Drug Alcohol Depend ; 25(1): 91-5, 1990 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-2323314

RESUMEN

Liver fibrogenesis involves the synthesis of collagen fibrils and proteoglycans by various types of liver cells, including Ito cells, transitional cells, myofibroblasts and hepatocytes. Synthesis of collagen fibrils follows a complex metabolic pathway with intermediate products such as type III procollagen (III-PC). Serum levels of III-PC may reflect the activity of the fibrogenetic process. We analysed the relationship between the serum levels of III-PC (N-terminal peptide) and diverse clinical, biochemical and histological parameters of 77 alcoholic patients (27 cirrhotics), comparing them with those of 15 age- and sex-matched controls. A highly significant difference was obtained between controls and patients (P less than 0.0001), but no differences were observed between cirrhotics and non-cirrhotics. Serum III-PC significantly correlated with clinical and biochemical data of liver function derangement (prothrombin activity, serum albumin, bilirubin, gynecomastia, ascites, encephalopathy, edema, splenomegaly); with the duration of ethanol addiction and with MCV. Sixty patients were followed up for a period ranging between 3 and 1056 days (mean = 356 days); 9 of them died. Patients with III-PC levels above 38 ng/ml had a significantly higher mortality (P = 0.006) than those with levels under 38 (log rank test). Thus, serum III-PC may be a useful tool in the clinical evaluation and prognostic assessment of patients with chronic alcoholic liver disease.


Asunto(s)
Alcoholismo/sangre , Hepatopatías Alcohólicas/sangre , Procolágeno/sangre , Adulto , Biopsia , Femenino , Humanos , Hígado/patología , Hepatopatías Alcohólicas/diagnóstico , Pruebas de Función Hepática , Masculino , Fragmentos de Péptidos/sangre , Pronóstico
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