Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 28
Filter
1.
Article in English | LILACS | ID: biblio-1353121

ABSTRACT

. (AU)Acute hepatic porphyrias (AHPs) are inborn errors of hemebiosynthesis and its most common and severe type is the acute intermittent porphyria (AIP). AIP is an hereditary autosomal dominant disease caused by accumulated porphobilinogen deaminase (PBG) and delta aminolevulin acid (ALA) products. The main symptoms are severe abdominal pain, neuromuscular and psychiatric disturbances, nausea, vomiting, encephalopathy, tachycardia, seizures, tremors and hypertension, that usually are manifested by acute crises. The treatment is based on clinical management and in cases which the patient's quality of life is affected liver transplantation (LT) may be an alternative choice. We report the case of a patient with AHP presenting recurrent crisis leading to chronic symptoms occurrence and poor quality of life with progressive unresponsiveness to hemin treatment. Patient was submitted to LT as curative therapy proposal, but patient still presents some clinical manifestations that may indicate the possibility of a secondary cause to explain persistence of her symptoms despite of biochemical normalization of ALA and PBG. (AU)


As porfirias hepáticas agudas (PHA) compreendem um grupo de porfirias que apresentam erros inatos na biossíntese do grupo heme, sendo a mais severa e o tipo mais comum da PHA, a porfiria aguda intermitente (PAI). A PAI é uma doença autossômica dominante causada pelo acúmulo dos produtos porfobilinogênio deaminase (PBG) e ácido delta-aminolevulínico (ALA). Os principais sintomas são dor abdominal intensa, distúrbios neuromusculares e psiquiátricos, náuseas, vômitos, encefalopatia, taquicardia, febre, tremores e hipertensão, os quais normalmente são manifestados durante as crises agudas. O tratamento é baseado no manejo clínico de todos pacientes durante a crise. Para os casos em que a qualidade de vida do paciente é afetada negativamente, a terapêutica de transplante hepático poderá ser indicada. O objetivo do relato de caso é introduzir o tratamento de uma paciente com recorrentes crises agudas de porfiria e danos em sua qualidade de vida. Uma vez que a paciente não apresentou melhora após tratamento com hematina, foi submetida ao transplante hepático visando a cura da doença. Após o transplante, a paciente ainda apresentou alguns sintomas clínicos, necessitando reformular uma segunda hipótese para explicar a persistência de tais sintomas apesar da normalização dos níveis de ALA e PBG. (AU)


Subject(s)
Humans , Female , Adolescent , Porphobilinogen , Hydroxymethylbilane Synthase , Quality of Life , Abdominal Pain , Liver Transplantation , Porphyrias, Hepatic , Porphyria, Acute Intermittent
2.
Iatreia ; 27(4): 417-427, oct.-dic. 2014. ilus, tab
Article in Spanish | LILACS | ID: lil-726839

ABSTRACT

Los errores innatos del metabolismo (EIM) son más de 550 enfermedades en las que se presenta una deficiencia o ausencia de proteínas con actividad enzimática, transportadora, receptora o estructural. Cada una de estas enfermedades es rara, pero su gran variedad hace que, consideradas en conjunto, sean la principal patología neonatal. Para la detección de los metabolitos producidos en los EIM se pueden utilizar pruebas cualitativas. Su utilidad radica en que son muy rápidas y de fácil acceso, y en que sirven como pruebas presuntivas para proceder a hacer exámenes más especializados o para enfocar el diagnóstico. Teniendo en cuenta su importancia para un diagnóstico temprano de los EIM, el objetivo del presente artículo es describir el funcionamiento de las pruebas bioquímicas de resorcinol, dinitrofenilhidrazina, nitrosonaftol, nitroprusiato y Hoesch, haciendo énfasis en los metabolitos que detectan.


Inborn errors of metabolism (IEM) are more than 550 diseases in which there is a deficiency or absence of proteins with enzymatic, transporter, receptor or structural activity. Individually these diseases are rare, but because of their wide variety they are, considered together, the largest neonatal disease. To detect metabolites produced in IEM qualitative tests can be used. They are easily accessible and fast to carry out, and serve as presumptive elements before proceeding to more specialized tests or to focus diagnosis. Given their importance for the early diagnosis of IEM, this article aims to describe the functioning of the following biochemical tests: dinitrophenylhydrazine, resorcinol, nitrosonaphtol, nitroprusside and Hoesch, emphasizing in the metabolites that they detect.


Os erros inatos do metabolismo (EIM) são mais de 550 doenças nas que se apresenta uma deficiência ou ausência de proteínas com atividade enzimática, transportadora, receptora ou estrutural. Cada uma destas doenças é rara, mas sua grande variedade faz que, consideradas em conjunto, sejam a principal patologia neonatal. Para a detecção dos metabólitos produzidos nos EIM se podem utilizar provas qualitativas. Sua utilidade radica em que são muito rápidas e de fácil acesso, e em que servem como provas presuntivas para proceder a fazer exames mais especializados ou para enfocar o diagnóstico. Tendo em conta sua importância para um diagnóstico precoce dos EIM, o objetivo do presente artigo é descrever o funcionamento das provas bioquímicas de resorcinol, dinitrofenilhidrazina, nitrosonaftol, nitroprusiato e Hoesch, fazendo ênfases nos metabólitos que detectam.


Subject(s)
Humans , Infant, Newborn , Dinitrophenols , Fructose , Keto Acids , Metabolism, Inborn Errors , Nitroprusside/chemistry , Porphobilinogen , Resorcinols/chemistry , Tyrosine
3.
Rev. colomb. cir ; 26(2): 131-137, abr.-jun. 2011. tab
Article in Spanish | LILACS | ID: lil-593541

ABSTRACT

La porfiria intermitente aguda es conocida, en el ámbito de la cirugía, como una de las causas de abdomen agudo no quirúrgico. No obstante, lo que no se menciona con frecuencia es la posibilidad de que cualquier procedimiento quirúrgico precipite un episodio agudo en pacientes con predisposición genética. Se presenta un caso florido de porfiria intermitente aguda precipitado por una apendicectomía, el cual complicó el posoperatorio de la paciente hasta el punto de requerir una laparotomía no terapéutica, dado el complejo sintomático de difícil interpretación.


Acute porphyria is an uncommon cause of non surgical acute abdomen. Important is the fact that any surgical intervention could set off an acute attack in particular cases, when the patient has genetical predisposition. We present a case of an acute attack of Intermitent Acute Porphyria triggered by an appendectomy. The patient developed the typical syndrome during the postoperative period, including the abdominal symptoms that imitate an acute abdomen that required a non- therapeutic laparotomy.


Subject(s)
Humans , Abdomen, Acute , Abdominal Pain , Aminolevulinic Acid , Porphobilinogen , Porphyria, Acute Intermittent , Porphyrias
4.
Korean Journal of Pediatric Gastroenterology and Nutrition ; : 81-85, 2011.
Article in Korean | WPRIM | ID: wpr-190242

ABSTRACT

Acute intermittent porphyria (AIP) is a rare disorder characterized biochemically by the increased excretion of porphyrins and porphyrin precursors, including delta-aminolevulinic acid (ALA) and porphobilinogen (PBG). AIP has variable clinical manifestations, such as acute abdominal pain, vomiting, nausea, constipation, peripheral neuropathy, seizures, tachycardia, and hypertension. A 16-year-old girl presented with recurrent abdominal pain, vomiting, hypertension, seizures, hypercholesterolemia, and red urine. AIP was confirmed by clinical features and increased 24-hour urine ALA and PBG. AIP should be considered in the differential diagnosis of patients who have abdominal pain, hypertension, and seizures when the results of all other tests are normal.


Subject(s)
Adolescent , Humans , Abdominal Pain , Aminolevulinic Acid , Constipation , Diagnosis, Differential , Hypercholesterolemia , Hypertension , Nausea , Peripheral Nervous System Diseases , Porphobilinogen , Porphyria, Acute Intermittent , Porphyrins , Seizures , Tachycardia , Vomiting
5.
Rev. Asoc. Med. Bahía Blanca ; 20(1): 3-6, enero-marzo 2010.
Article in Spanish | LILACS, BINACIS | ID: biblio-947072

ABSTRACT

Las Porfirias son un grupo de enfermedades metabólicas del grupo hemo con polimorfismo sintomático. Se requiere de la sospecha clínica para solicitar las determinaciones de laboratorio que las caracterizan y permiten su clasificación. El objetivo de este trabajo es alertar a la comunidad profesional local sobre la importancia de descartar estas metabolopatías ante síntomas inespecíficos. Se realizó un estudio retrospectivo en los 2 hospitales públicos de la ciudad de Bahía Blanca durante el período 2003 a 2009. Se revisaron las historias clínicas de los pacientes a los que se les solicitó la determinación urinaria de porfirina y/o porfobilinógeno. Se encontraron 39 pacientes, 23 de sexo femenino (59%) con edades comprendidas entre 16 y 56 años, y 16 varones (41%) entre 7 y 83 años. Los servicios solicitantes se distribuyeron de la siguiente manera: 25% Dermatología, 19% Clínica Médica, 12% Pediatría, 11% Hematología, mientras que Cirugía, Gastroenterología, Guardia, Terapia Intensiva e Infectología no superaron el 5% en forma individual. Los principales síntomas fueron dolor abdominal (68%) y lesiones cutáneas (26%). Hallamos 23% de casos de Porfirias Agudas Intermitentes y 15% de Porfirias Cutáneas Tardas que respondieron exitosamente al tratamiento con dieta hidrocarbonada y fotoprotectores respectivamente. El 75% de las intermitentes presentaron alguna alteración neurológica y el 82% cursó con ecografía abdominal normal. Los resultados obtenidos justificarían solicitar la búsqueda de estos metabolitos en enfermos con síntomas erráticos y reiterados, que peregrinan por varios servicios, optimizándose el diagnóstico y tratamiento que en algunos casos debe ser urgente.


Porphyrias are a group of metabolic diseases of the heme group with symptomatic polymorphism. Clinical suspicion is required to request laboratory determinations that characterize and enable classification of this disease. The aim of this work is to warn the local health care community about the importance of this disorder. During the period 2003-2009, a retrospective study in public hospitals in Bahía Blanca city was performed. Both types were successfully treated with a high carbohydrate diet and photoprotective agents respectively. Acute intermittent porphyria presented some neurological damage (75%) and normal abdominal ultrasound results (82%). The results obtained would largely justify the request of these metabolites in patients with erratic and repeated symptoms that go from one hospital unit to another, thus optimizing diagnosis and treatment that in some cases should be urgent.


Subject(s)
Humans , Porphyrias , Polymorphism, Genetic , Porphobilinogen , Hospitals, Public
6.
Biomédica (Bogotá) ; 29(3): 339-347, sept. 2009. tab, ilus
Article in Spanish | LILACS | ID: lil-544542

ABSTRACT

Las porfirias son un grupo de alteraciones metabólicas de la síntesis del hem, de carácter hereditario. Son condiciones relativamente raras, de difícil diagnóstico, pero con una respuesta impresionante al tratamiento y con buen pronóstico, si se identifican y tratan a tiempo. La más común de las formas agudas es la porfiria intermitente aguda. Se presenta el caso de un hombre de 23 años que consultó por dolor abdominal y que, concomitantemente presentaba un hemotórax espontáneo de dos litros, presentación inusual nunca antes descrita para la porfiria intermitente aguda. Se incluye una breve revisión de los aspectos más relevantes de la porfiria intermitente aguda, epidemiología, diagnóstico, clínica y manejo, además de una serie de reflexiones sobre cómo sospechar tempranamente el diagnóstico.


The porphyrias are inherited disorders of the heme biosynthetic pathway. They are relatively rare and often misdiagnosed; however, acute episodes can be curtailed by early administration of heme arginate. Acute intermittent porphyria is the commonest of acute forms of porphyria. Here, a case is presented of a 23-year-old male with acute intermittent porphyria who came to the emergency clinic with an unexplained abdominal pain. In addition, he exhibited spontaneous hemothorax (two liters of blood accumulated in the chest) as an unusual manifestation of the disease. The most relevant aspects of acute intermittent porphyria are discussed, along with its epidemiology, diagnosis, clinical presentation and treatment. Complexities and diagnostic requirements in making a diagnosis of porphyria are described.


Subject(s)
Abdomen, Acute , Hemothorax , Hydroxymethylbilane Synthase , Porphyria, Acute Intermittent , Porphobilinogen
7.
Indian J Pathol Microbiol ; 2008 Oct-Dec; 51(4): 551-2
Article in English | IMSEAR | ID: sea-75010

ABSTRACT

OBJECTIVES: To report a case of acute intermittent porphyria (AIP) diagnosed by chance during routine investigations. CLINICAL PRESENTATION AND INTERVENTION: A 21-year-old female presented with vague gastrointestinal symptoms. Upon admission, she was disoriented. Later she developed generalized seizures and was treated with phenytoin, but the condition worsened. Upon investigation, her liver function, renal function, blood sugar level and electrolytes were within normal limits. When kept for routine laboratory testing, the color change in urine prompted us to investigate for porphyria. It was positive for phorphobilinogen (PBG) and urophorphyrin. Since AIP had been diagnosed, the initial treatment with phenytoin was discontinued with a favorable outcome. A screening test for PBG in urine by Ehrlich's reagent was performed on the patient's mother and was positive. CONCLUSION: A high degree of suspicion at the laboratory can also determine the diagnosis of AIP, which is often missed by the clinician.


Subject(s)
Adult , Anticonvulsants/administration & dosage , Female , Humans , Phenytoin/administration & dosage , Porphobilinogen/urine , Porphyria, Acute Intermittent/complications , Psychotic Disorders/diagnosis , Seizures/drug therapy , Treatment Outcome , Young Adult
8.
Journal of the Korean Academy of Family Medicine ; : 59-65, 2004.
Article in Korean | WPRIM | ID: wpr-146625

ABSTRACT

A 34-year old woman visited the hospital complaining severe general pain which had onset on the way of improvement of sore throat, cough with sputum as symptoms of acute upper respiratory infection for 3 days. The facts that her younger sister also had a history of porphyria and the color of the patient's urine changed to dark black after it had exposed to sunlight made us to rule out porphyria strongly. Therefore, we measured the level of delta-ALA and porphobilinogen in the collected urine during 24 hours, and confirmed her diagnosis as acute intermittent porphyria. The SIADH was complicated and the sleep disturbance, disorientation and hallucination onset during the hospital days. She had taken high dose dextrose IV and hematin IV therapy for porphyria and improved gradually. Therefore, authors et al. report a case of acute intermittent porphyria with various clinical symptoms on the way of treatment of upper respiratory infection as well as review the previous literatures.


Subject(s)
Female , Humans , Cough , Diagnosis , Glucose , Hallucinations , Hemin , Inappropriate ADH Syndrome , Pharyngitis , Porphobilinogen , Porphyria, Acute Intermittent , Porphyrias , Siblings , Sputum , Sunlight
9.
PAFMJ-Pakistan Armed Forces Medical Journal. 2003; 53 (2): 242-243
in English | IMEMR | ID: emr-64138
10.
Braz. j. med. biol. res ; 35(11): 1273-1283, Nov. 2002. ilus, tab, graf
Article in English | LILACS | ID: lil-326252

ABSTRACT

We evaluated the porphyrinogenic ability of ethanol (20 percent in drinking water) per se, its effect on the development of sporadic porphyria cutanea tarda induced by hexachlorobenzene in female Wistar rats (170-190 g, N = 8/group), and the relationship with hepatic damage. Twenty-five percent of the animals receiving ethanol increased up to 14-, 25-, and 4.5-fold the urinary excretion of delta-aminolevulinate, porphobilinogen, and porphyrins, respectively. Ethanol exacerbated the precursor excretions elicited by hexachlorobenzene. Hepatic porphyrin levels increased by hexachlorobenzene treatment, while this parameter only increased (up to 90-fold) in some of the animals that received ethanol alone. Ethanol reduced the activities of uroporphyrinogen decarboxylase, delta-aminolevulinate dehydrase and ferrochelatase. In the ethanol group, many of the animals showed a 30 percent decrease in uroporphyrinogen activity; in the ethanol + hexachlorobenzene group, this decrease occurred before the one caused by hexachlorobenzene alone. Ethanol exacerbated the effects of hexachlorobenzene, among others, on the rate-limiting enzyme delta-aminolevulinate synthetase. The plasma activities of enzymes that are markers of hepatic damage were similar in all drug-treated groups. These results indicate that 1) ethanol exacerbates the biochemical manifestation of sporadic hexachlorobenzene-induced porphyria cutanea tarda; 2) ethanol per se affects several enzymatic and excretion parameters of the heme metabolic pathway; 3) since not all the animals were affected to the same extent, ethanol seems to be a porphyrinogenic agent only when there is a predisposition, and 4) hepatic damage showed no correlation with the development of porphyria cutanea tarda


Subject(s)
Animals , Female , Rats , Ethanol , Ferrochelatase , Liver , Porphyria Cutanea Tarda , Uroporphyrinogen Decarboxylase , /analysis , Disease Models, Animal , Ferrochelatase , Hexachlorobenzene , Liver , Porphobilinogen , Porphobilinogen Synthase , Porphyria Cutanea Tarda , Porphyrins , Rats, Wistar , Uroporphyrinogen Decarboxylase
11.
RBCF, Rev. bras. ciênc. farm. (Impr.) ; 38(3): 249-257, jul.-set. 2002. ilus, tab
Article in Portuguese | LILACS | ID: lil-334616

ABSTRACT

As porfirias são causadas por deficiência parcial de uma das enzimas da via de biossíntese do heme, caracterizando-se por disfunções neuroviscerais bastante semelhantes. As profirias agudas são decorrentes da deficiência das enzimas delta-aminolevulinato desidratase (ALAD), porfobilinogênio desaminase, coproporfirinogênio oxidase ou protoporfirinogênio oxidase, que provocam, respectivamente, porfiria por deficiência da ALAD, porfiria aguda intermitente, coproporfiria hereditária e porfiria variegada. Todas as porfirias agudas caracterizam-se por um aaumento na concentração de ácido 5-aminolevulínico no plasma e no líquor, acompanhado de um aumento na excreção urinária deste composto...


Subject(s)
Humans , Adult , Aminolevulinic Acid/analysis , DNA , Mutation/genetics , Porphobilinogen/analysis , Porphyria, Acute Intermittent , Porphyrins , Blood , Feces , Specimen Handling , Urine
13.
Rev. med. interna ; 11(2): 77-80, dic. 2000. ilus
Article in Spanish | LILACS | ID: lil-295613

ABSTRACT

Las porfirias son un grupo de enfermedades causadas por defectos en la síntesis de hem. Se deben a deficiencias enzimáticas hereditarias. Los patrones de excreción de porfirinas dependen del tipo de defecto enzimático, y de ello depende también la manifestación clínica de las diferentes variedades. Fotosensibilidad y lesiones cutáneas son características de Porfiria Aguda Intermitente. Los pacientes se presentan con el inicio agudo de síntomas neurológicos o abdominales (el grupo hepático) y tienden a tener producción y niveles excretorios, aumentados de ácido delta amino levulínico y porfobilinogteno durante los ataques agudos. Usualmente existe un aumento en la actividad de sintetasa de ácido delta-aminolevulínico. Drogas que inducen enzimas hepáticas se sabe son precipitantes de ataques agudos (por ejemplo, barbitúricos). Una revisión de las diferentes pruebas, incluyendo el test de Watson-Schwartz y de Hoesch, además de maniobras simples al lado de la cama como exposición de la orina a la luz solar y a luz ultravioleta se presentan con los resultados típicos observados en las diferentes variedades de porfiria e ilustraciones de los cambios de color observados en las diferentes pruebas


Subject(s)
Humans , Porphyrias , Porphobilinogen/urine , Clinical Laboratory Techniques
15.
Medicina (B.Aires) ; 59(1): 23-7, 1999. tab, graf
Article in Spanish | LILACS | ID: lil-231905

ABSTRACT

Se revisa la experiencia con 30 crisis porfíricas en 25 pacientes atendidos a partir de 1967. Veintiún pacientes tuvieron 1 crisis, tres presentaron 2 y uno 3 de estos episodios. En todos los enfermos el diagnóstico de porfiria se planteó en relación a una crisis, aunque muchos de ellos tenían antecedentes familiares y/o manifestaciones clínicas previas de la enfermedad. Hubo claro predominio (80 por ciento) de mujeres, pero ellas son, también, mayoría entre las porfirias agudas. Los síntomas más fecuentes fueron: dolor abdominal, taquicardia, orína obscura, trastornos neuropsíquicos e hipertensión arterial.El compromiso neurológico obligó al uso de respirador en 9 episodios (33 por ciento) que se mantuvo en 2 pacientes por 4 meses. En 6 crisis (20 por ciento) no hubo manifestaciones neurológicas. Entre los exámenes de laboratorio destacó la hiponatremia por su frecuencia (53.4 por ciento) e intensidad. Se observó elevación del portobilinógeno urinario, requisito para el diagnóstico, entre 15 y 130 veces el valor normal. Las complicaciones sépticas, como neumonía, septicemia e infección urinaria, fueron frecuentes (50 por ciento). Factores sospechosos de haber desencadenado episodios de crisis, fueron: drogas, habitualmente más de 2, en el 50 por ciento de los casos; embarazo en el 30 por ciento de las mujeres y, en menor proporción, ejercícios intensos e intervenciones quirúrgicas. En 10 pacientes no se identificaron o informaron factores desencadenantes de crisis. No es claro el rol del embarazo, parto o puerperio en producir crisis, por cuanto las pacientes que presentaron crisis relacionadas con ellos tuvieron otros 15 embarazos sin incidentes. Además, en el embarazo que se acompañó de crisis siempre estuvo presente una o más drogas potencialmente desencadenantes. La primera medida terapéutica empleada fue la administración, oral o endovenosa, de sobrecarga de hidratos de carbono y, si no hubo respuesta, se indicó infusión endovenosa de Hematina. Cuatro (13.3 por ciento) pacientes fallecieron aunque recibieron Hematina, pero ésta fue administrada tardiamente por demora en el diagnóstico. En los pacientes que sobrevivieron no hubo secuelas orgánicas de ningún tipo.


Subject(s)
Pregnancy , Humans , Female , Adolescent , Adult , Middle Aged , Hemin/therapeutic use , Porphyria, Acute Intermittent/diagnosis , Porphyria, Acute Intermittent/drug therapy , Porphobilinogen/urine , Time Factors
16.
Acta physiol. pharmacol. ther. latinoam ; 48(3): 137-45, 1998. tab, graf
Article in Spanish | LILACS | ID: lil-216881

ABSTRACT

Se estudió el efecto de la intoxicación crónica con hexaclorobenceno en ratas, con y sin administración simultánea de tioctamida. En el grupo que recibió hexaclorobenceno solo, se produjo el esperado desarrollo de porfiria incrementándose la excreción urinaria y el contenido hepático de porfirinas y disminuyendo la actividad Uroporfirinógeno decarboxilasa. El contenido hepático de dienos conjugados no varió, en tanto que el de malondialdehido se incrementó en un grado estadísticamente no significativo. Estos resultados indicarían la existencia de un ligero proceso de peroxidación lipídica. La tioctamida (25 mg/Kg de peso) produjo efectos nocivos antes que protectores, detectados por un aumento de la actividad transaminasa glutámico pirúvica y una inhibición a nivel de la primera etapa de la Uroporfirinógeno decarboxilasa. Los resultados indicarían que: 1) altas dosis de tioctamida producen un decremento en la actividad Uroporfirinógeno decarboxilasa, enmascarando quizás su posible efecto protector frente a la acción del hexaclorobenceno por radicales libres; 2) la Uroporfirinógeno decarboxilasa es un parámetro más sensible que la medición de dienos conjugados o de melondialdehido para ensayar la producción de radicales libres por acción del hexaclorobenceno in vivo. De ser así, la tioctamida, ensayada a dosis menores y no tóxicas, a través de su habilidad como atrapante de radicales libres, quizás pueda proteger contra la acción del hexaclorobenceno.


Subject(s)
Rats , Animals , 5-Aminolevulinate Synthetase/urine , Alanine Transaminase/drug effects , Amides/pharmacology , Fungicides, Industrial/toxicity , Hexachlorobenzene/toxicity , Lipid Peroxidation/drug effects , Liver/chemistry , Porphobilinogen/urine , Porphyrins/urine , Thioctic Acid/pharmacology , Uroporphyrinogen Decarboxylase/drug effects , Alanine Transaminase/metabolism , Free Radicals/metabolism , Liver/enzymology , Rats, Wistar , Time Factors , Uroporphyrinogen Decarboxylase/drug effects
18.
Korean Journal of Clinical Pathology ; : 7-9, 1991.
Article in Korean | WPRIM | ID: wpr-57154

ABSTRACT

No abstract available.


Subject(s)
Chromatography , Mass Screening , Porphobilinogen
19.
Journal of Korean Medical Science ; : 146-156, 1991.
Article in English | WPRIM | ID: wpr-90440

ABSTRACT

Griseofulvin(GF) has become the drug of choice as an antifungal agent for patients who suffer from many kinds of fungal infection. In order to clarify hepatic injury by griseofulvin(GF) overload and the effect of UDCA on GF-induced hepatic injury, the authors carried out biochemical, histologic, and ultrastructural studies of liver following treatment with griseofulvin and ursodeoxycholic acid(UDCA) in mice. Urine porphobilinogen excretion in the group treated with GF alone was significantly increased and reached the highest level in the 4th week and declined thereafter. Biochemical studies of the liver function showed no remarkable changes of serum bilirubin levels throughout the experimental period in all groups, except for SGPT and alkaline phosphatase activities which were significantly elevated and reached the highest level in the second week. Then they slightly decreased in GF treated groups(GF alone and GF plus UDCA) in comparison with the control group. Pathologic findings in the group treated with GF alone include focal liver cell necrosis(esp, zone 3), Mallory bodies in hepatocytes(esp, zone 1), Kupffer cell activation, and brown protoporphyrin pigments in the hepatocytes, bile canaliculi and interlobular bile ducts with a marked inflammatory cell infiltration in the portal tracts. Under the polarizing light microscope, bile ductular and canalicular thrombi showed a "Maltese cross" birefringence in mice treated with GF alone. There is no definite finding of fatty change in hepatocyte. Under the microscope, the liver appeared normal with an intact lobular architecture in the GF plus UDCA treated group. Electron microscopically, GF-induced changes include swelling of mitochondria, globular protoporphyrin crystals in the hepatocyte cytoplasm, markedly dilated bile cannaliculi and bile ducts and the formation of a Mallory hyaline bodies in the hepatocytes. There were no noticeable structural changes in the GF plus UDCA-treated group. Therefore the results suggest that GF causes hepatic injury, namely porphyria and cholestasis, and the treatment of UDCA may have cytoprotective and choleretic effects on GF-induced hepatic injuries.


Subject(s)
Animals , Mice , Alanine Transaminase/blood , Alkaline Phosphatase/blood , Bilirubin/blood , Chemical and Drug Induced Liver Injury , Griseofulvin/toxicity , Liver Diseases/drug therapy , Mice, Inbred ICR , Microscopy, Electron , Porphobilinogen/urine , Porphyrias/chemically induced , Ursodeoxycholic Acid/therapeutic use
SELECTION OF CITATIONS
SEARCH DETAIL