Ductal Plate Malformations in Captive Snakes

2021 ◽  
pp. 030098582110119
Author(s):  
Olivia M. Patania ◽  
Brigid V. Troan ◽  
John M. Cullen

Ductal plate malformations are abnormalities in the liver that arise from inappropriate or incomplete remodeling of the embryologic ductal plate. Various types of ductal plate malformations are reported in the human and veterinary literature, most commonly affecting domestic mammalian species but also fish. We investigated the occurrence and described the histopathologic features of ductal plate malformations in captive snakes. Malformations were identified in 18 snakes: 10 colubrids, 6 vipers, and 2 boids. There was no sex predilection, and the mean age was 17 years. The majority of lesions were incidental with most snakes having one or more comorbidities, most commonly neoplasia or systemic inflammation, that resulted in natural death or euthanasia. Ductal plate malformations in all livers were broadly characterized by a well-demarcated nodule of irregular bile ducts embedded within a varying amount of fibrous stroma. Malformations were further categorized based on the amount of fibrous stroma and dilation of the bile ducts as von Meyenburg complexes, cystic liver disease, and/or an intermediate hybrid subtype representative of cysts arising within von Meyenburg complexes. Histochemical and immunohistochemical staining, including Gomori’s trichome and pan-cytokeratin, respectively, were applied on select cases to confirm histologic features. Malignant transformation was not identified within this population.

Author(s):  
Jeniffer Danielle M. Dutra ◽  
Quelson Coelho Lisboa ◽  
Silvia Marinho Ferolla ◽  
Carolina Martinelli M. L. Carvalho ◽  
Camila Costa M. Mendes ◽  
...  

Abstract. Some epidemiological evidence suggests an inverse correlation between non-alcoholic fatty liver disease (NAFLD) frequency and vitamin D levels. Likewise, a beneficial effect of vitamin D on diabetes mellitus (DM) and insulin resistance has been observed, but this is an unsolved issue. Thus, we aimed to investigate the prevalence of hypovitaminosis D in a NAFLD Brazilian population and its association with disease severity and presence of comorbidities. In a cross-sectional study, the clinical, biochemical and histological parameters of 139 NAFLD patients were evaluated according to two different cut-off points of serum 25-hydroxyvitamin D levels (20 ng/mL and 30 ng/mL). The mean age of the population was 56 ± 16 years, most patients were female (83%), 72% had hypertension, 88% dyslipidemia, 46% DM, 98% central obesity, and 82% metabolic syndrome. Serum vitamin D levels were < 30 ng/mL in 78% of the patients, and < 20 ng/mL in 35%. The mean vitamin D level was 24.3 ± 6.8 ng/mL. The comparison between the clinical, biochemical and histological characteristics of the patients according to the levels of vitamin D showed no significant difference. Most patients with NAFLD had hypovitaminosis D, but low vitamin D levels were not related to disease severity and the presence of comorbidities.


Author(s):  
Sergey Staroverov ◽  
Sergey Kozlov ◽  
Alexander Fomin ◽  
Konstantib Gabalov ◽  
Alexey Volkov ◽  
...  

Background: The liver disease problem prompts investigators to search for new methods of liver treatment. Introduction: Silymarin (Sil) protects the liver by reducing the concentration of free radicals and the extent of damage to the cell membranes. A particularly interesting method to increase the bioavailability of Sil is to use synthesized gold nanoparticles (AuNPs) as reagents. The study considered whether it was possible to use the silymarin-AuNP conjugate as a potential liver-protecting drug. Method: AuNPs were conjugated to Sil and examine the liver-protecting activity of the conjugate. Experimental hepatitis and hepatocyte cytolysis after carbon tetrachloride actionwere used as a model system, and the experiments were conducted on laboratory animals. Result: For the first time, silymarin was conjugated to colloidal gold nanoparticles (AuNPs). Electron microscopy showed that the resultant preparations were monodisperse and that the mean conjugate diameter was 18–30 nm ± 0.5 nm (mean diameter of the native nanoparticles, 15 ± 0.5 nm). In experimental hepatitis in mice, conjugate administration interfered with glutathione depletion in hepatocytes in response to carbon tetrachloride was conducive to an increase in energy metabolism, and stimulated the monocyte–macrophage function of the liver. The results were confirmed by the high respiratory activity of the hepatocytes in cell culture. Conclusion: We conclude that the silymarin-AuNP conjugate holds promise as a liver-protecting agent in acute liver disease caused by carbon tetrachloride poisoning.


2021 ◽  
Author(s):  
Kazuki Yamamoto ◽  
Takashi Ikeya ◽  
Shuhei Okuyama ◽  
Katsuyuki Fukuda ◽  
Daiki Kobayashi

Background & Aims: This study aimed to evaluate the association between the frequency of daily tooth brushing and the development of nonalcoholic fatty liver disease (NAFLD). Methods: A retrospective longitudinal study was conducted from 2005 to 2012 at the Center for Preventive Medicine at St. Luke's International Hospital, Japan. Data on all participants who underwent a health checkup during the study period were collected. NAFLD was diagnosed by abdominal ultrasonography, and all participants who were diagnosed with NALFD at the time of their initial visit, consumed alcohol in any amount, or had received only one health checkup were excluded. The questionnaire for the frequency of daily tooth brushing was conducted as part of health checkups. The primary outcome was the risk of developing NAFLD according to the frequency of daily tooth brushing (1-2 times a day, or 3 times a day) compared to those who brush teeth once or less than once a day. Results: Data were collected from 25,804 people. A total of 3,289 (12.7%) participants developed NAFLD. The mean age was 45.2 years, and 6,901 (26.7%) of the participants were male. The risk of developing NAFLD significantly decreased with increased frequency of daily tooth brushing. Adjusted odds ratios (ORs) are as follows: Brushing teeth 1-2 times a day (OR: 0.85, 95% CI: 0.77-0.95), and 3 times a day (OR: 0.74, 95% CI: 0.67-0.82). Conclusions: Frequent tooth brushing was shown to significantly reduce the risk of developing NAFLD. 


2020 ◽  
Author(s):  
Boyan Wang ◽  
Jianying Zhang ◽  
Zhaochong Zeng

Abstract PurposeThis study sought to analyze the predicting role of dosimetric parameters for nonclassic radiation-induced liver disease (RILD) after helical tomotherapy (HT) in Child-Pugh (CP) class A primary liver carcinoma (PLC) patients.Patients and methodsA total number of 71 CP class A PLC patients treated with HT from June 2011 to June 2015 were retrospectively reviewed. Clinical characteristics and dose-volume histogram (DVH) were recorded, and liver functions were followed up for 4 months after radiotherapy.ResultsIn all, 57 patients (80.3%) were male, and 14 (19.7%) were female, with a median age of 53 years. The mean gross tumor volume (GTV) was 226.8 cm3. A median dose of 55.0 Gy was delivered by HT with a median fraction size of 2.6 Gy. Twelve patients (16.9%) were diagnosed with nonclassic RILD. The mean dose to normal liver (MDTNL) and the percentage of total liver volume receiving more than 25 - 35 Gy irradiations (V25 - V35) were related to nonclassic RILD. MDTNL showed the highest AUC (0.705, p=0.026). The optimal cut-off value of MDTNL was 21.3 Gy with a sensitivity, specificity and accuracy of 83.3%, 62.7% and 67.6%, respectively. The tolerable volume percentages for DVH were less than: V25 of 42.3%, V30 of 33.9%, and V35 of 28.3%.ConclusionThis study suggests that MDTNL, V25, V30 and V35 are dosimetric predictors for nonclassic RILD in CP class A PLC patients. MDTNL < 21.3Gy, V25 < 42.3%, V30 < 33.9%, and V35 < 28.3% may be used to optimize HT planning.


Author(s):  
Rahmafitria Rahmafitria ◽  
Mutmainnah Mutmainnah ◽  
Ibrahim Abdul Samad

Evaluating the degree of liver fibrosis degree is invasive as well as uncomfortable, therefore, non invasive examinations such as liverfunction tests and elastography (Fibro Scan) as a predictor‘s device of liver fibrosis degree are necessary. The aim of this study was toknow the differences of liver function parameters based on the fibrosis degree in patients with chronic liver disease. This study was a crosssectional design using data from chronic liver disease patients treated at the Dr. Wahidin Sudirohusodo Hospital. The elasticity of the liverwas measured using a fibro scan device during June 2010–July 2011. The analysis was carried out by ANOVA test on various parametersof liver function particularly on the fibrosis degree in chronic liver disease. In this study PT, albumin, total bilirubin and platelet countshowed a significant difference of 0.019, 0.009, 0.017 and 0.000 respectively. The mean values of PT and total bilirubin were significantlyhigher in the high degree of fibrosis compared to those with medium and low degree of fibrosis in the chronic liver disease patients. Basedon this study, the mean albumin levels and platelet count were significantly lower in the high degree of fibrosis compared with the mediumand low degree of fibrosis, however, no significant differences in AST, ALT, APTT and GGT were found.


2018 ◽  
Vol 26 (6) ◽  
pp. 542-550 ◽  
Author(s):  
Darren Chua ◽  
Adrian Kah Heng Chiow ◽  
Tiing Leong Ang ◽  
Lai Mun Wang

Cholangiocarcinoma is the second most common hepatobiliary cancer following hepatocellular carcinoma, and 20% to 25% are intrahepatic. We describe 2 cases of intrahepatic cholangiocarcinoma arising within unusual and rare hepatic lesions, fibropolycystic liver disease form of ductal plate malformation and biliary adenofibroma, whose association with malignancy is rarely reported in the literature.


2021 ◽  
Vol 17 (2) ◽  
pp. 174-179
Author(s):  
Muhammad Javaid Iqbal ◽  
Muhammad Usman ◽  
Mubarak Ali Anjum ◽  
Yasir Yaqoob ◽  
Ghulam Mujtaba Nasir ◽  
...  

Objective: To evaluate the role of Immature platelet fraction in patients with chronic liver disease, a marker for evaluating cirrhotic changes. Methodology: This case control study was conducted at department of Pathology, Aziz Fatima Medical and Dental College, Faisalabad, over a period of Seven months from June 2020 to January 2021. A total of 126 participants were included in the study consisting of 63 patients with chronic liver disease in group A and 63 participants without any known disease in group B as control. The IPF master program in combination with XE-2100 multiparameter automatic hematology analyzer was used to measure the immature platelet fraction. Ethylene diamine tetraacetic acid was used to collect the blood sample for IPF measurement and was maintained till analysis on room temperature. Ten repeated analyses, immediately and after 24 hours were done for reproducibility of IPF%. Results: The mean age of liver disease patients was 52.35 ± 13.64 years and in control group the mean age was 51.62 ± 11.27 years. There was no significant (p-value > 0.05) difference between both groups based on age and gender. The hemoglobin level and red cell count was found to be significantly (p-value < 0.05) reduced in cases group. While white blood cells count was comparable in both groups. The mean platelet count was significantly (p-value < 0.05) less in cases group (163.5 ± 90.4 vs 233.4 ± 54.5 (x10*3/µl). The mean value of immature platelet fraction (IPF%) was significantly (p-value < 0.05) raised in cases group (5.62 ± 2.92 vs 3.06 ± 1.87). The multivariate discriminant analysis (MDA) score showed a significant (p-value < 0.05) association with chronic hepatis as compared to other liver related diseases. Conclusions: In chronic liver disease patients, there is an inverse relationship between platelet count and IPF% with decreased platelet count and increased IPF%. The proposed MDA function can be used to identify the cirrhotic changes in liver disease patients.


1999 ◽  
Vol 54 (5) ◽  
pp. 165-168 ◽  
Author(s):  
Bruno Cupertino Migueletto ◽  
Abrahão Elias Hallack Neto ◽  
Elaine Zamora Domingues ◽  
Pedro Paulo Neves de Castro ◽  
Hartmut Stocker ◽  
...  

Primary biliary cirrhosis (PBC) is a cholestatic liver disease, which is characterized by a chronic inflammatory destruction of intrahepatic bile ducts. It is a rare disorder whose precise etiology is still to be elucidated. Even though the liver is the principal target of PBC, other organ systems also might be affected. Muscular involvement has rarely been described in this disease, and in the majority of cases, muscular weakness has been interpreted as polymyositis. We report the case of a 48-year-old woman suffering from classic PBC, in association with a myopathy whose histological features are distinct from the cases reported before. We also performed a MEDLINE research for PBC and concomitant muscular diseases.


1974 ◽  
Vol 20 (4) ◽  
pp. 494-496 ◽  
Author(s):  
Leslie M Shaw ◽  
Jane Gray

Abstract Optimal concentration of substrate, α-oxobutyrate, for determination of α-hydroxybutyrate dehydrogenase (HBD) activity in normal and pathological sera at 30 °C (with a centrifugal analyzer) is 12 mmol/ liter. With this substrate concentration, HBD activity averaged 146% of that found with the suboptimal concentration, 3.3 mmol/liter, usually used. Furthermore, day-to-day precision was significantly better. HBD/LD ranges (LD, lactate dehydrogenase), determined for sera from patients with myocardial infarction and liver disease, did not overlap and were similar to those established by Elliot et al. [Clin. Sci. 23, 305 (1962)], who used a suboptimal α-oxobutyrate concentration of 3.3 mmol/liter at 25 °C. At 30 °C the mean HBD/LD ratios for sera from patients with myocardial infarction were most different from those for patients with liver disease when the optimal concentration of α-oxobutyrate was used.


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