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To explore the differences in foie gras performance between geese raised in cages and on the ground, we conducted an integrative analysis of liver transcriptome and gut microbial metagenomes. The results showed extremely significant differences in the liver weight (P < 0.01) and liver lipid accumulation of FRS and CRS groups. The levels of triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) of CRS were significantly higher than those of FRS (P < 0.05). Transcriptome analysis showed that 3,917 upregulated and 1,395 downregulated genes were identified, and lipid metabolism pathway and fatty acid metabolism were significantly enriched. Analysis of cecum microbiota revealed that several inflammation-related bacteria (including Gallibacterium, Escherichia-Shigella, Desulfovibrio, Alistipes, and Fournierella) were enriched in CRS, while beneficial bacteria (including Lactobacillus, Limosilactobacillus, and Ligilactobacillus) were significantly enriched in FRS. In conclusion, CRS was better than FRS in foie gras production, which was more conducive to lipid deposition in the goose liver.
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1. In order to compare the difference between different derivatisations for amino acids determination of foie gras via, reversed phase high performance liquid chromatography (HPLC), O-phthalaldehyde and 9-fluorenyl-methyl chloroformate (OPA-FMOC group), phenylisothiocyanate (PITC group) and 6-Aminoquinolyl-N-hydrox-ysuccinimidyl Carbamate (AQC group) were applied to derivatisation reagent in this current experiment. The determination results of automatic amino acid analyser were applied, and 17 amino acids were detected by these three derivatisation methods.2. The running times of OPA-FMOC group, PITC group and AQC group were 18, 45 and 35 min, respectively. There was a large difference between the results of OPA-FMOC group and results from the automatic amino acid analyser, although the difference between the results from PITC and the automatic amino acid analyser was minimal.3. In conclusion, the running time of OPA-FMOC group was shorter than that of PITC group and AQC group; the accuracy of the former was better than the OPA-FMOC group and AQC group for the determination of amino acid of foie gras.
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BACKGROUND: Acute fulminant liver failure rarely occurs in the neonatal period. The etiologies include viral infection (15%), metabolic/genetic disease (10%), hematologic disorders (15%), and ischemic injury (5%). Gestational alloimmune liver disease usually manifests as severe neonatal liver failure, with extensive hepatic and extrahepatic iron overload, sparing the reticuloendothelial system. Empty liver failure is a rare cause of liver failure where a patient presents with liver failure in the neonatal period with no hepatocytes in liver biopsy. CASE SUMMARY: A 5-week-old male presented with jaundice. Physical examination revealed an alert but deeply icteric infant. Laboratory data demonstrated direct hyperbilirubinemia, a severely deranged coagulation profile, normal transaminase, and normal ammonia. Magnetic resonance imaging of the abdomen was suggestive of perinatal hemochromatosis. Liver biopsy showed histiocytic infiltration with an absence of hepatocytes. No hemosiderin deposition was identified in a buccal mucosa biopsy. CONCLUSION: Neonatal liver failure in the absence of hepatocellular regeneration potentially reflects an acquired or inborn defect in the regulation of hepatic regeneration.
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Benign tumors of the liver and biliary tract are rare entities, and some of them require surgical management to prevent their malignant transformation. Tumors from the biliary tract with malignant potential are treated either by hepatic resection, for mucinous cystic neoplasm and ciliated hepatic foregut cysts, or by biliary resections, for biliary papillary neoplasm and type I and IV choledochal cysts. The pathologies requiring prophylactic cholecystectomy are polyps larger than 10 mm, porcelain gallbladder and pancreaticobiliary maljunction. Finally, hepatocellular adenoma over 5cm, occurring in male patients, or exon 3 mutated beta-catenin, should lead to prophylactic resection by hepatic segmentectomy. This article describes these different pathologies and their management.
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Langerhans cell histiocytosis (LCH) is a disease whose physiopathology remains unclear, involving both inflammatory processes and clonal proliferation. It is observable at any given age, although about ten times more frequent in children than adults. Hepatic involvement is not rare, mostly part of a systemic disease, and linked to a poor prognosis. We report here a case of LCH with solitary hepatic involvement in a 74 year-old patient. This case demonstrated molecular anomaly of the MAPK pathway, BRAF N486_P490del. Through this observation, we precise the epidemiological and histological aspects and diagnostic criteria of this rare disease.
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Histiocitosis de Células de Langerhans , Anciano , Humanos , Histiocitosis de Células de Langerhans/diagnóstico , Hígado/patología , Enfermedades RarasRESUMEN
This Scientific Opinion concerns the welfare of Domestic ducks (Anas platyrhynchos domesticus), Muscovy ducks (Cairina moschata domesticus) and their hybrids (Mule ducks), Domestic geese (Anser anser f. domesticus) and Japanese quail (Coturnix japonica) in relation to the rearing of breeders, birds for meat, Muscovy and Mule ducks and Domestic geese for foie gras and layer Japanese quail for egg production. The most common husbandry systems (HSs) in the European Union are described for each animal species and category. The following welfare consequences are described and assessed for each species: restriction of movement, injuries (bone lesions including fractures and dislocations, soft tissue lesions and integument damage and locomotory disorders including lameness), group stress, inability to perform comfort behaviour, inability to perform exploratory or foraging behaviour and inability to express maternal behaviour (related to prelaying and nesting behaviours). Animal-based measures relevant for the assessment of these welfare consequences were identified and described. The relevant hazards leading to the welfare consequences in the different HSs were identified. Specific factors such as space allowance (including minimum enclosure area and height) per bird, group size, floor quality, characteristics of nesting facilities and enrichment provided (including access to water to fulfil biological needs) were assessed in relation to the welfare consequences and, recommendations on how to prevent the welfare consequences were provided in a quantitative or qualitative way.
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Intestinal bacteria play an important role in the formation of fatty liver in animals by participating in the digestion and degradation of nutrients, producing various metabolites, and altering the barrier effect of the intestine. However, changes in the gut microbiota during the formation of goose fatty liver are unclear. In this study, 80 healthy Landes geese with similar body weights at 70 days of age were randomly divided into two groups: the control group (n = 48; fed ad libitum) and the overfeeding group (n = 32; overfed). The intestinal contents were collected at 0, 12, and 24 days of overfeeding. The 16S rRNA and metagenomic sequencing analyses showed that the dominant phyla were Firmicutes, Proteobacteria, Bacteroidetes, and Actinobacteria. At the genus level, Phyllobacterium, Bacteroides, Helicobacter, Lactobacillus, Enterococcus, and Romboutsia were the dominant genera in the goose intestine, and most of them were probiotics. In the control group, the relative abundance of Firmicutes in the jejunum and ileum gradually decreased with time, while that of Proteobacteria increased, whereas in the overfeeding group, the relative abundance of Firmicutes in the jejunum and ileum decreased and then increased with time, while that of Proteobacteria showed an opposite trend. In addition, supplementing Lactobacillus to the diet reduced body weight and fatty liver weight in overfed geese, but increased the weight of abdominal fat, suggesting that Lactobacillus supplementation might affect the transport of nascent fat from the liver to abdominal fat. In conclusion, the species of intestinal-dominant bacteria in the geese are relatively stable, but their relative abundance and function are affected by a number of factors. Overfeeding promotes the metabolism of nutrients in the jejunum and ileum and increases bacterial adaptability to environmental changes by enhancing their ability to process environmental and genetic information more efficiently. These findings suggest that the effect of overfeeding on the composition of intestinal microbiota may indirectly influence the formation of goose fatty liver through the gut/liver axis.
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INTRODUCTION: Pulmonary emphysema and liver disease are the clinical expressions of alpha 1-antitrypsin deficiency, an autosomal recessive genetic disease. STATE OF THE ART: Alpha 1-antitrypsin deficiency is usually associated with the homozygous Z variant of the SERPINA1 gene. Its clinical expression always consists in a substantial reduction of alpha 1-antitrypsin serum concentration and its variants are analyzed by isoelectric focalization or molecular techniques. Assessed by CO transfer alteration and CT scan, risk of pulmonary emphysema is increased by tobacco consumption. Assessed by transient elastography and liver ultrasound, risk of liver disease is increased by alcohol consumption or obesity. Treatment of COPD-associated alpha 1-antitrypsin deficiency does not differ from that of other forms of COPD. In patients presenting with severe deficiency, augmentation therapy with plasma-derived alpha 1-antitrypsin reduces the progression of emphysema, as shown in terms of CT-based lung density metrics. Patients with alpha 1-antitrypsin deficiency with a ZZ genotype should refrain from alcohol or tobacco consumption, and watch their weight; so should their close relatives. PERSPECTIVES: Modulation of alpha 1-antitrypsin liver production offers an interesting new therapeutic perspective. CONCLUSION: Homozygous (Z) variants of the SERPINA1 gene confer an increased risk of pulmonary emphysema and liver disease, particularly among smokers, drinkers and obese persons.
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Enfisema Pulmonar , Deficiencia de alfa 1-Antitripsina , Genotipo , Humanos , Enfisema Pulmonar/diagnóstico , Enfisema Pulmonar/epidemiología , Enfisema Pulmonar/etiología , alfa 1-Antitripsina/genética , Deficiencia de alfa 1-Antitripsina/complicaciones , Deficiencia de alfa 1-Antitripsina/diagnóstico , Deficiencia de alfa 1-Antitripsina/epidemiologíaRESUMEN
OBJECTIVES: Semaglutide and liraglutide are glucagon-like peptide-1 (GLP-1)-based diabetes drugs. Semaglutide possesses a longer half-life. Utilizing relatively lower doses, we compared the beneficial metabolic effects of these 2 drugs in mice fed a high-fat diet (HFD), aiming to deepen our mechanistic understanding on their energy homeostatic functions. METHODS: Male C57BL/6J mice were fed an HFD for 10 weeks, followed by daily phosphate-buffered saline (PBS, as control); liraglutide (150 µg/kg body weight); or semaglutide (12 µg/kg body weight, low dose [LD]; or 60 µg/kg body weight, high dose [HD]) injection for 4 weeks. Metabolic tolerance and other tests were conducted within the 4-week period. Expression of metabolism-related genes, including Fgf21 in the liver and adipose tissues, was assessed after mice were euthanized. RESULTS: HFD-induced body weight gain, increasing inguinal fat tissue mass, glucose defects and insulin intolerance were effectively and comparably attenuated in the 3 experimental groups. HD semaglutide showed an even better effect on attenuating hyperleptinemia. Liraglutide but not semaglutide treatment enhanced hepatic fibroblast growth factor 21 (FGF21) protein level. All 3 experimental groups showed elevated expression of genes that encode pyruvate dehydrogenase kinase 4 and enoyl-CoA hydratase and 3-hydroxyacyl-coenzyme A dehydrogenase, associated with reduced plasma triglyceride levels. Finally, the plasma "GLP-1" level in HD semaglutide-treated mice was 14-fold higher than in HFD-fed control mice. CONCLUSIONS: Liraglutide, but not semaglutide, increased hepatic FGF21 protein level, whereas semaglutide had a greater effect on attenuating hyperleptinemia. Thus, these 2 GLP-1-based diabetes drugs may target metabolic organs, including liver and adipose tissue, with differing levels of efficacy.
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Diabetes Mellitus , Liraglutida , Animales , Peso Corporal , Péptido 1 Similar al Glucagón/metabolismo , Péptido 1 Similar al Glucagón/farmacología , Péptidos Similares al Glucagón , Humanos , Hipoglucemiantes/farmacología , Hipoglucemiantes/uso terapéutico , Liraglutida/farmacología , Liraglutida/uso terapéutico , Masculino , Ratones , Ratones Endogámicos C57BLRESUMEN
Liver fibrosis is a very common health problem and currently lacks effective treatments. Cullin RING E3 ligases (CRLs) regulate the turnover of â¼20% of mammalian cell proteins. Neddylation, the process by which NEDD8 is covalently attached to cullin proteins through sequential enzymatic reactions, is critical for the activation of CRLs and was recently found to be elevated in liver fibrosis. NEDD8-activating enzyme E1-specific inhibition led to the reduced liver damage characterized by decreased apoptosis, inflammation, and fibrosis. However, the relevance of a co-E3 ligase, DCN1, in liver fibrosis remains unclear. Here, a novel and potent DCN1-UBC12 interaction inhibitor HZX-960 was discovered with an IC50 value of 9.37 nmol/L, which could inhibit the neddylation of cullin3. Importantly, we identified that HZX-960 treatment could attenuate transforming growth factor ß-induced liver fibrotic responses by reducing the deposition of collagen I and α-smooth muscle actin, and upregulating cellular NF-E2-related factor 2, hemeoxygenase 1, and NADPH quinone oxidoreductase-1 levels in two hepatic stellate cell lines. Additionally, DCN1 was shown to be unregulated in CCl4-induced mice liver tissue, and liver fibrotic signaling in mice was reduced by HZX-960. Therefore, our data demonstrated that HZX-960 possessed anti-liver fibrosis ability and that DCN1 may be a potential therapeutic target for liver fibrosis treatment.
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Inhibidores Enzimáticos , Cirrosis Hepática , Enzimas Ubiquitina-Conjugadoras , Ubiquitina-Proteína Ligasas , Animales , Proteínas Cullin/metabolismo , Inhibidores Enzimáticos/farmacología , Cirrosis Hepática/tratamiento farmacológico , Ratones , Enzimas Ubiquitina-Conjugadoras/antagonistas & inhibidores , Ubiquitina-Proteína Ligasas/antagonistas & inhibidores , UbiquitinaciónRESUMEN
High-intensity physical exercise favors anaerobic glycolysis and increases lactatemia. Lactate is converted back to glucose in the liver, so that the lactate threshold, an indicator of physical performance, must be related to the gluconeogenic capacity of the liver. This research assessed the effect of a high-intensity interval resistance training (HIIRT) on liver gluconeogenesis from lactate. Swiss mice were trained (groups T) on vertical ladder with overload of 90% of their maximal load. Control animals remained untrained (groups C0 and C8). In situ liver perfusion with lactate and adrenaline was performed in rested mice after 6 hours of food deprivation. There were larger outputs of glucose (T6, 71.90%; T8, 54.53%) and pyruvate (T8, 129.28%) (representative values for 4 mM lactate) in the groups trained for 6 or 8 weeks (T6 and T8), and of glucose in the presence of adrenaline in group T8 (280%). The content of PEPCK, an important regulatory enzyme of the gluconeogenic pathway, was 69.13% higher in group T8 than in the age-matched untrained animals (C8). HIIRT augmented liver gluconeogenesis from lactate and this might improve the lactate threshold. Novelty: The liver metabolizes lactate from muscle into glucose. Physical training may enhance the gluconeogenic capacity of the liver. As lactate clearance by the liver improves, lactate threshold is displaced to higher exercise intensities.
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Gluconeogénesis , Entrenamiento de Fuerza , Animales , Glucosa/metabolismo , Humanos , Ácido Láctico/metabolismo , Hígado/metabolismo , RatonesRESUMEN
Metformin, a traditional first-line pharmacological treatment for type 2 diabetes, has recently been shown to have anti-cancer effects on hepatocellular carcinoma (HCC). However, the molecular mechanism underlying the anti-tumor activity of metformin remains unclear. The Sonic hedgehog (Shh) signaling pathway is closely associated with the initiation and progression of HCC. Therefore, the aim of the current study was to investigate the effects of metformin on the biological behavior of HCC and the underlying functional mechanism of metformin in the Shh pathway. HCC was induced in HepG2 cells using recombinant human Shh (rhShh). The effects of metformin on proliferation and metastasis were evaluated using in vitro proliferation, wound healing, and invasion assays. The mRNA and protein expression levels of proteins related to the Shh pathway were measured using western blotting, quantitative PCR, and immunofluorescence staining. Metformin inhibited rhShh-induced proliferation and metastasis. Furthermore, metformin decreased the mRNA and protein expression of Shh pathway components, including Shh, Ptch, Smo, and Gli-1. Silencing of AMPK in the presence of metformin revealed that metformin exerted its inhibitory effects via AMPK. Our findings demonstrate that metformin suppresses the migration and invasion of HepG2 cells via AMPK-mediated inhibition of the Shh pathway.
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Carcinoma Hepatocelular , Diabetes Mellitus Tipo 2 , Neoplasias Hepáticas , Metformina , Proteínas Quinasas Activadas por AMP/metabolismo , Carcinoma Hepatocelular/metabolismo , Línea Celular Tumoral , Proliferación Celular , Proteínas Hedgehog/genética , Proteínas Hedgehog/metabolismo , Células Hep G2 , Humanos , Neoplasias Hepáticas/metabolismo , Metformina/farmacología , Transducción de Señal , Proteína con Dedos de Zinc GLI1/genética , Proteína con Dedos de Zinc GLI1/metabolismo , Proteína con Dedos de Zinc GLI1/farmacologíaRESUMEN
Haemangioma is the most frequent benign hepatic tumour. Haemangioma is generally asymptomatic but it can sometimes cause disabling symptoms depending on its size and location. Surgery and interventional radiology are the cornerstone of the treatment in this situation. Radiation therapy, already used with good efficacy and safety to treat hepatic malignant lesions as hepatocarcinoma and metastases, is a relevant option in case of contraindication to surgery because of multiple or very large lesions. In this context, we report the case of a patient presenting with multiple symptomatic hepatic haemangiomas, successfully treated by radiation therapy in our department. These good results justified a review of the literature to report series of patients treated in this indication and to describe the main treatment regimens used.
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Carcinoma Hepatocelular , Hemangioma , Neoplasias Hepáticas , Hemangioma/radioterapia , Hemangioma/cirugía , Humanos , Neoplasias Hepáticas/cirugíaRESUMEN
OBJECTIVES: To develop and validate a new semiquantitative fluorescence optical imaging (FOI) scoring system-the FOI Enhancement-Generated RA Score (FOIE-GRAS) for synovitis assessment in the hand. METHODS: The development of FOIE-GRAS was based on consensus of four experts in musculoskeletal imaging. Forty-six RA patients, eligible for treatment intensification and with ≥1 clinically swollen joints in the hands, and 11 healthy controls were included. FOI, ultrasound and clinical assessment of both hands were obtained at baseline and for RA patients after 3 and 6 months' follow-up. Twenty RA patients had an FOI rescan after 4 h. Synovitis was scored using FOIE-GRAS and the OMERACT ultrasound synovitis scoring system. All FOI images were scored by two readers. Inter-scan, inter- and intra-reader reliability were determined. Furthermore, FOIE-GRAS agreement with ultrasound and responsiveness was assessed. RESULTS: FOIE-GRAS synovitis was defined as early enhancement, and scores were based on the degree of coverage of the specific joint region after 3 s (0-3). Inter-scan, intra- and inter-reader intraclass correlations coefficients (ICC) were good to excellent for all baseline scores (0.76-0.98) and moderate to good for change (0.65-76).The FOIE-GRAS had moderate agreement with ultrasound (ICC 0.30-0.54) for total score, a good standardized response mean (>0.80), and moderate correlation with clinical joint assessment and DAS28-CRP. The median (interquartile range) reading time per FOI examination was 133 (109, 161) s. Scores were significantly lower in controls [1 (0, 4)] than RA patients [11 (6, 19)]. CONCLUSION: The FOIE-GRAS offers a feasible and reliable assessment of synovitis in RA, with a moderate correlation with ultrasound and DAS28-CRP, and good responsiveness.
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Artritis Reumatoide/diagnóstico por imagen , Articulaciones de la Mano/diagnóstico por imagen , Imagen Óptica/métodos , Sinovitis/diagnóstico por imagen , Adulto , Artritis Reumatoide/patología , Estudios de Casos y Controles , Femenino , Articulaciones de la Mano/patología , Humanos , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Gravedad del Paciente , Reproducibilidad de los Resultados , Sinovitis/patología , UltrasonografíaRESUMEN
We present the update of the recommendations of the French society of oncological radiotherapy on hepatic tumours. Recent technological progress led to develop the concept of focused liver radiation therapy. We must distinguish primary and secondary tumours, as the indications are restricted and must be discussed as an alternative to surgical or medical treatments. The tumour volume, its liver location close to the organs at risk determine the irradiation technique (repositioning method, total dose delivered, dose fractionation regimens). Tumour (and liver) breathing related motions should be taken into account. Strict dosimetric criteria must be observed with particular attention to the dose-volume histograms of non-tumoral liver as well as of the hollow organs, particularly in case of hypofractionated high dose radiotherapy "under stereotaxic conditions". Stereotactic body radiotherapy is being evaluated and is often preferred to radiofrequency for primary or secondary tumours (usually less than 5cm). An adaptation can be proposed, with a conformal fractionated irradiation protocol with or without intensity modulation, for hepatocellular carcinomas larger than 5cm.
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Carcinoma Hepatocelular/radioterapia , Neoplasias Hepáticas/radioterapia , Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/secundario , Francia , Humanos , Hígado/efectos de la radiación , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/secundario , Movimientos de los Órganos , Órganos en Riesgo , Posicionamiento del Paciente/métodos , Oncología por Radiación , Radiocirugia/métodos , Dosificación Radioterapéutica , Radioterapia Conformacional/métodos , Radioterapia Guiada por Imagen , Respiración , Carga TumoralRESUMEN
Ischemia-reperfusion injury (IRI) is typically associated with a vigorous inflammatory and oxidative stress response to hypoxia and reperfusion that disturbs the function of the organ. The remote effects of renal IRI on the liver, however, require further study. Renal damage associated with liver disease is a common clinical problem. Colchicine, a polymerization inhibitor of microtubules, has been used as an anti-inflammatory and anti-fibrotic drug for liver diseases. The goal of the current study was to investigate the possible protective mechanisms of colchicine on liver injury following renal IRI. Forty rats were divided randomly into four groups: sham group, colchicine-treated group, IRI group, and colchicine-treated + IRI group. Treatment with colchicine significantly reduced hepatic toll-like receptor 4 (TLR4), nuclear factor kappa B (NF-κB) transcription factor, myeloid differentiation factor 88 (MyD88), and tumor necrosis factor-alpha (TNF-α) contents; downregulated BCL2 associated X apoptosis regulator (BAX) gene expression, transforming growth factor-ß (TGF-ß) content, and upregulated hepatic B cell lymphoma 2 (Bcl-2) gene expression as compared with the IRI group. Finally, hepatic histopathological examinations have confirmed the biochemical results. Renal IRI-induced liver damage in rats was alleviated by colchicine through its anti-inflammatory, anti-apoptotic, and anti-fibrotic actions.
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Colchicina/farmacología , Colchicina/uso terapéutico , Regulación de la Expresión Génica/efectos de los fármacos , Expresión Génica/efectos de los fármacos , Enfermedades Renales/tratamiento farmacológico , Enfermedades Renales/genética , FN-kappa B/genética , FN-kappa B/metabolismo , Proteínas Proto-Oncogénicas c-bcl-2/genética , Proteínas Proto-Oncogénicas c-bcl-2/metabolismo , Daño por Reperfusión/tratamiento farmacológico , Daño por Reperfusión/genética , Receptor Toll-Like 4/genética , Receptor Toll-Like 4/metabolismo , Factor de Crecimiento Transformador beta/genética , Factor de Crecimiento Transformador beta/metabolismo , Proteína X Asociada a bcl-2/genética , Proteína X Asociada a bcl-2/metabolismo , Animales , Antiinflamatorios , Antifibróticos , Apoptosis/efectos de los fármacos , Enfermedades Renales/etiología , Enfermedades Renales/patología , Masculino , Ratas Sprague-Dawley , Daño por Reperfusión/etiología , Daño por Reperfusión/patologíaRESUMEN
Foie gras is a traditional dish in France that contains 50 to 60% of lipids. The high-fat content of the liver improves the organoleptic qualities of foie gras and reduces its technological yield at cooking (TY). As the valorization of the liver as foie gras products is strongly influenced by the TY, classifying the foie gras in their potential technological quality before cooking them is the main challenge for producers. Therefore, the current study aimed to identify hepatic biomarkers of foie gras qualities like liver weight (LW) and TY. A group of 120 male mule ducks was reared and overfed for 6-12 days, and their livers were sampled and analyzed by proton nuclear magnetic resonance (1H-NMR). Eighteen biomarkers of foie gras qualities were identified, nine for LW and TY, five specific to LW, and four specific to TY. All biomarkers were strongly negatively correlated to the liver weights and positively correlated to the technological yield, except for the lactate and the threonine, and also for the creatine that was negatively correlated to foie gras technological quality. As a result, in heavy livers, the liver metabolism was oriented through a reduction of carbohydrate and amino acid metabolisms, and the plasma membrane could be damaged, which may explain the low technological yield of these livers. The detected biomarkers have been strongly discussed with the metabolism of the liver in nonalcoholic steatohepatitis.
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INTRODUCTION: This case report describes a 12-year-old female spayed mixed-breed dog referred for treatment of a large, inoperable hepatocellular carcinoma. A computed tomography (CT) scan confirmed the previous ultrasonographic and laparoscopic findings of a large, lobulated, poorly defined mass on the left and central aspect of the liver. Multiple biopsies confirmed the diagnosis of hepatocellular carcinoma. Due to the large extent of the tumor, the vascular association to the Vena cava caudalis and the associated high risk of intraoperative bleeding, a resection of the mass was refrained from and a radiotherapeutic treatment was chosen. The dog underwent radiation therapy (RT) with a 6MV linear accelerator with 5×6 Gy, total dose 30 Gy. In the follow up examinations three months and one year after therapy, the dog presented in normal condition and had normal Alanine-amino-transferase (ALT) and alkaline phosphatase (AP). The tumor size measured in the CT-examinations decreased by 61% and 90%, respectively. Two years after radiation therapy the dog has a normal general condition and liver enzymes are within the normal limits.
INTRODUCTION: Ce rapport décrit le cas d'une chienne de race mixte, stérilisée, âgée de 12 ans et référée pour traitement d'un important carcinome hépatocellulaire inopérable. Une tomodensitométrie (TDM) a confirmé les résultats échographiques et laparoscopiques antérieurs, à savoir une grande masse mal définie sur la partie gauche et centrale du foie. De multiples biopsies ont confirmé le diagnostic de carcinome hépatocellulaire. En raison de l'étendue de la tumeur, de l'association à la veine cave caudale et du risque élevé associé d'hémorragies peropératoires, on a renoncé à une résection de la masse et un traitement radiothérapeutique a été choisi. Le chien a subi une radiothérapie (RT) avec un accélérateur linéaire de 6 MV avec 5 × 6 Gy, dose totale 30 Gy. Lors des examens de suivi, trois mois et un an après le traitement, le chien présentait un état normal et avait une alanine-amino-transférase (ALT) et une phosphatase alcaline (PA) normales. La taille de la tumeur mesurée lors des examens tomodensitométriques avait diminué de 61% respectivement de 90%. Deux ans après la radiothérapie, le chien présente un état général normal et les enzymes hépatiques sont dans la norme.
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Carcinoma Hepatocelular , Enfermedades de los Perros , Neoplasias Hepáticas , Animales , Carcinoma Hepatocelular/radioterapia , Carcinoma Hepatocelular/veterinaria , Enfermedades de los Perros/diagnóstico por imagen , Enfermedades de los Perros/radioterapia , Perros , Femenino , Neoplasias Hepáticas/radioterapia , Neoplasias Hepáticas/veterinaria , Tomografía Computarizada por Rayos XRESUMEN
PURPOSE: In patients with right-sided breast cancer (BC) the liver might be partially irradiated during adjuvant radiotherapy (RT). Thus, we performed a prospective observational study to evaluate the dose delivered to the liver, and its potential biological impact. PATIENTS AND METHODS: We enrolled 34 patients with right-sided BC treated with adjuvant RT. The RT schedules were either the Canadian (42.5Gy in 16 fx) or standard fractionated (50Gy in 25 fx) regimen respectively with 9 (26.5%) and 25 (73.5%) patients each, ± a boost of 10-16Gy. Each patient had a complete blood count and liver enzymes analysis, before starting and during the last week of treatment. RESULTS: A significant decrease in white blood cells and thrombocytes counts was observed during RT. We observed a significant correlation between certain hepatic parameters and the volume of the irradiated liver and/or the mean liver dose. A significant correlation between the volume of the right lung and the liver mean dose was found (P=0.008). In the bivariate analysis, a significant correlation between fatigue and the white blood cell count's evolution was observed (P<0.025). CONCLUSION: With the standard RT technique, incidental irradiation of the liver was documented in a large number of patients, and some significant hepatic parameters alterations were observed, without an apparent clinical impact, but this study cannot exclude them. The liver mean dose was correlated with the right lung volume suggesting that deep inspiration breath hold (DIBH) techniques may represent a way to decrease the liver dose. These findings need to be evaluated in further larger studies.