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Hepatic iron

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https://www.readbyqxmd.com/read/28811946/are-all-mutations-the-same-a-rare-case-report-of-coexisting-mutually-exclusive-kras-and-braf-mutations-in-a-patient-with-metastatic-colon-adenocarcinoma
#1
Anusha Vittal, Akshay Middinti, Anup Kasi Loknath Kumar
29-year-old Hispanic woman presented to the clinic with complaints of abdominal pain, nausea, fatigue, and constipation. Laboratory tests indicated the presence of iron deficiency anemia and transaminitis. Imaging evaluation revealed marked hepatomegaly with multiple hepatic metastases and pelvic lymphadenopathy. Biopsy of the hepatic lesions showed adenocarcinoma positive for pan-cytokeratin, CMA5.2, villin, and CDX2. She was positive for tumor markers CA 19-9, CA-125, and CEA. Upon further evaluation, she was found to have colorectal cancer positive for KRAS and BRAF mutations...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/28809726/clinical-and-laboratory-associations-with-persistent-hyperferritinemia-in-373-black-hemochromatosis-and-iron-overload-screening-study-participants
#2
James C Barton, J Clayborn Barton, Paul C Adams
BACKGROUND: 373 black participants had elevated screening and post-screening serum ferritin (SF) (> 300 μg/L men; > 200 μg/L women). MATERIAL AND METHODS: We retrospectively studied SF and post-screening age; sex; body mass index; transferrin saturation (TS); ALT; AST; GGT; elevated C-reactive protein; ß-thalassemia; neutrophils; lymphocytes; monocytes; platelets; metacarpophalangeal joint hypertrophy; hepatomegaly; splenomegaly; diabetes; HFE H63D positivity; iron/alcohol intakes; and blood/erythrocyte transfusion units...
August 8, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28807236/overcoming-barriers-to-treating-iron-overload-in-patients-with-lower-risk-myelodysplastic-syndrome
#3
REVIEW
Amer M Zeidan, Vinod A Pullarkat, Rami S Komrokji
Myelodysplastic syndromes (MDS) constitute a group of heterogeneous hematopoietic neoplasms characterized by ineffective erythropoiesis, anemia, and/or cytopenias. Supportive care for patients with MDS involves frequent red blood cell transfusions, which places patients with ongoing transfusional dependence (TD) at risk for iron overload (IO). Development of IO and tissue iron deposition can increase the risk of cardiac, hepatic, and endocrine toxicities, infection, and progression to acute myeloid leukemia...
September 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28801939/assessment-of-advanced-hepatic-mr-elastography-methods-for-susceptibility-artifact-suppression-in-clinical-patients
#4
Jin Wang, Kevin J Glaser, Tianhui Zhang, Qungang Shan, Bingjun He, Jun Chen, Meng Yin, Bogdan Dzyubak, Jennifer L Kugel, Scott A Kruse, Roger C Grimm, Sudhakar K Venkatesh, Richard L Ehman
PURPOSE: To assess the success rate, image quality, and the ability to stage liver fibrosis of a standard 2D gradient-recalled echo (GRE) and four different spin-echo (SE) magnetic resonance elastography (MRE) sequences in patients with different liver iron concentrations. MATERIALS AND METHODS: A total of 332 patients who underwent 3T MRE examinations that included liver fat and iron quantification were enrolled, including 136 patients with all five MRE techniques...
August 11, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28798083/hamp1-mrna-and-plasma-hepcidin-levels-are-influenced-by-sex-and-strain-but-don-t-predict-tissue-iron-levels-in-inbred-mice
#5
Stela McLachlan, Kathryn E Page, Seung-Min Lee, Alex Loguinov, Erika Valore, Simon T Hui, Grace Jung, Jie Zhou, Aldons J Lusis, Brie Fuqua, Tomas Ganz, Elizabeta Nemeth, Chris D Vulpe
Iron homeostasis is tightly regulated and the peptide hormone hepcidin is considered to be a principal regulator of iron metabolism. Previous studies in a limited number of mouse strains found equivocal sex and strain dependent differences in mRNA and serum levels of hepcidin. Similarly, conflicting data on the relationship between hepcidin (Hamp1) mRNA levels and iron status as assessed by transferrin saturation and tissue iron concentrations were reported. Our aim was to clarify the relationships between strain, sex and hepcidin expression by examining multiple tissues and the effects of different dietary conditions in multiple inbred strains...
August 10, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28781827/deferasirox-associated-with-liver-failure-and-death-in-a-sickle-cell-anemia-patient-homozygous-for-the-1774delg-polymorphism-in-the-abcc2-gene
#6
Caroline C B Braga, Bruno Deltreggia Benites, Dulcineia M de Albuquerque, Marisa C Alvarez, Tiago Seva-Pereira, Bruno K L Duarte, Fernando F Costa, Simone C O Gilli, Sara T O Saad
This manuscript describes the case of a patient with sickle cell anemia who died of fulminant hepatitis after therapy with the iron chelator Deferasirox. The patient was homozygous for the -1774delG polymorphism in the Abcc2 gene, which raises the concern about the use of hepatotoxic drugs in this specific context.
August 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28774878/the-actin-binding-protein-profilin-2-is-a-novel-regulator-of-iron-homeostasis
#7
Sara Luscieti, Bruno Galy, Lucia Gutierrez, Michael Reinke, Jorge Couso, Maya Shvartsman, Antonio Di Pascale, Walter Witke, Matthias W Hentze, Pietro Pilo Boyl, Mayka Sanchez
Cellular iron homeostasis is controlled by the iron regulatory proteins (IRPs) 1 and 2 that bind cis-regulatory iron-responsive elements (IRE) on target mRNAs. We identified the profilin2 (Pfn2) mRNA, which encodes an actin binding protein involved in endocytosis and neurotransmitters release, as a novel IRP-interacting transcript and studied its role in iron metabolism. Combination of EMSA experiments and bioinformatic analyses led to the identification of an atypical and conserved IRE in the 3' untranslated region of Pfn2 mRNA...
August 3, 2017: Blood
https://www.readbyqxmd.com/read/28769992/salivary-proline-rich-protein-may-reduce-tannin-iron-chelation-a-systematic-narrative-review
#8
REVIEW
Nicole M Delimont, Sara K Rosenkranz, Mark D Haub, Brian L Lindshield
BACKGROUND: Tannins are often cited for antinutritional effects, including chelation of non-heme iron. Despite this, studies exploring non-heme iron bioavailability inhibition with long-term consumption have reported mixed results. Salivary proline-rich proteins (PRPs) may mediate tannin-antinutritional effects on non-heme iron bioavailability. AIM: To review evidence regarding biochemical binding mechanisms and affinity states between PRPs and tannins, as well as effects of PRPs on non-heme iron bioavailability with tannin consumption in vivo...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28764657/hepatic-iron-overload-is-associated-with-hepatocyte-apoptosis-during-clonorchis-sinensis-infection
#9
Su Han, Qiaoran Tang, Rui Chen, Yihong Li, Jing Shu, Xiaoli Zhang
BACKGROUND: Hepatic iron overload has been implicated in many liver diseases; however, whether it is involved in clonorchiasis remains unknown. The purpose of this study is to investigate whether Clonorchis sinensis (C. sinensis) infection causes hepatic iron overload, analyze the relationship between the iron overload and associated cell apoptosis, so as to determine the role of excess iron plays in C. sinensis-induced liver injury. METHODS: The Perls' Prussian staining and atomic absorption spectrometry methods were used to investigate the iron overload in hepatic sections of wistar rats and patients infected with C...
August 1, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28761460/relationships-between-oxidative-stress-liver-and-erythrocyte-injury-trace-elements-and-parasite-burden-in-sheep-naturally-infected-with-dicrocoelium-dendriticum
#10
Hadi Samadieh, Gholam-Reza Mohammadi, Mohsen Maleki, Hassan Borji, Mohammad Azizzadeh, Mohammad Heidarpour
BACKGROUND: The aim of this study was to investigate the role of oxidative stress in the pathology of ovine dicrocoeliasis. METHODS: During Dec 2013 - Oct 2014, seventy-two sheep (1-3 years) with liver dicrocoeliasis along with 47 healthy sheep were selected from animals admitted for slaughtering at slaughterhouse located in Neyshabour, Razavi Khorasan Province, Iran. RESULTS: In comparison to healthy control, the malondialdehyde (MDA) level and serum total antioxidant capacity were significantly higher in the parasitized group (P<0...
January 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28760087/diabetes-mellitus-induces-alterations-in-metallothionein-protein-expression-and-metal-levels-in-the-testis-and-liver
#11
Yiming Gu, Xin Lian, Weixia Sun, Baoshan Gao, Yaowen Fu
Objective To investigate the effect of diabetes with and without vitamin E treatment on testicular metallothionein (MT) and metal (zinc, copper and iron) changes. Methods Diabetes was induced with a single intraperitoneal injection (i.p.) of streptozotocin in rats, and diabetic rats were given Vitamin E by i.p. every other day for 4 weeks. MT protein was measured by the cadmium-haeme assay and metal levels were detected by an atomic absorption spectrophotometer. Results Diabetes did not change testicular MT protein, but significantly increased hepatic MT protein...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28759390/cholestasis-and-hepatic-iron-deposition-in-an-infant-with-complex-glycerol-kinase-deficiency
#12
Diana Montoya-Williams, Meredith Mowitz
We present a 6-week-old male infant with persistent hyperbilirubinemia, hypertriglyceridemia, elevated creatine kinase levels, and transaminitis since the second week of life. When he developed hyperkalemia, clinical suspicion was raised for adrenal insufficiency despite hemodynamic stability. A full endocrine workup revealed nearly absent adrenocorticotropic hormone. Coupled with his persistent hypertriglyceridemia (peak of 811 mg/dL) and elevated creatine kinase levels (>20 000 U/L), his corticotropin level lead to a clinical diagnosis of complex glycerol kinase deficiency (GKD), also known as Xp21 deletion syndrome...
July 2017: Pediatrics
https://www.readbyqxmd.com/read/28753992/applicability-of-metal-nanoparticles-in-the-detection-and-monitoring-of-hepatitis-b-virus-infection
#13
REVIEW
Maxim Shevtsov, Lili Zhao, Ulrike Protzer, Maarten A A van de Klundert
Chronic infection with the hepatitis B virus (HBV) can lead to liver failure and can cause liver cirrhosis and hepatocellular carcinoma (HCC). Reliable means for detecting and monitoring HBV infection are essential to identify patients in need of therapy and to prevent HBV transmission. Nanomaterials with defined electrical, optical, and mechanical properties have been developed to detect and quantify viral antigens. In this review, we discuss the challenges in applying nanoparticles to HBV antigen detection and in realizing the bio-analytical potential of such nanoparticles...
July 21, 2017: Viruses
https://www.readbyqxmd.com/read/28751976/manganese-transporter-slc39a14-deficiency-revealed-its-key-role-in-maintaining-manganese-homeostasis-in-mice
#14
Yongjuan Xin, Hong Gao, Jia Wang, Yuzhen Qiang, Mustapha Umar Imam, Yang Li, Jianyao Wang, Ruochen Zhang, Huizhen Zhang, Yingying Yu, Hao Wang, Haiyang Luo, Changhe Shi, Yuming Xu, Shintaro Hojyo, Toshiyuki Fukada, Junxia Min, Fudi Wang
SLC39A14 (also known as ZIP14), a member of the SLC39A transmembrane metal transporter family, has been reported to mediate the cellular uptake of iron and zinc. Recently, however, mutations in the SLC39A14 gene have been linked to manganese (Mn) accumulation in the brain and childhood-onset parkinsonism dystonia. It has therefore been suggested that SLC39A14 deficiency impairs hepatic Mn uptake and biliary excretion, resulting in the accumulation of Mn in the circulation and brain. To test this hypothesis, we generated and characterized global Slc39a14-knockout (Slc39a14(-/-) ) mice and hepatocyte-specific Slc39a14-knockout (Slc39a14(fl/fl);Alb-Cre(+) ) mice...
2017: Cell Discovery
https://www.readbyqxmd.com/read/28747430/ferredoxin-reductase-is-critical-for-p53-dependent-tumor-suppression-via-iron-regulatory-protein-2
#15
Yanhong Zhang, Yingjuan Qian, Jin Zhang, Wensheng Yan, Yong-Sam Jung, Mingyi Chen, Eric Huang, Kent Lloyd, Yuyou Duan, Jian Wang, Gang Liu, Xinbin Chen
Ferredoxin reductase (FDXR), a target of p53, modulates p53-dependent apoptosis and is necessary for steroidogenesis and biogenesis of iron-sulfur clusters. To determine the biological function of FDXR, we generated a Fdxr-deficient mouse model and found that loss of Fdxr led to embryonic lethality potentially due to iron overload in developing embryos. Interestingly, mice heterozygous in Fdxr had a short life span and were prone to spontaneous tumors and liver abnormalities, including steatosis, hepatitis, and hepatocellular carcinoma...
July 26, 2017: Genes & Development
https://www.readbyqxmd.com/read/28728456/quillaja-saponaria-bark-saponin-protects-wistar-rats-against-ferrous-sulphate-induced-oxidative-and-inflammatory-liver-damage
#16
Mustafa Ahmed Abdel-Reheim, Basim Anwar Shehata Messiha, Ali Ahmed Abo-Saif
CONTEXT: Saponins from different sources are historically reported in Chinese medicine to possess many beneficial effects. However, insufficient experimental data are available regarding the hepatoprotective potential of Quillaja bark saponin. OBJECTIVE: The protective effect of Quillaja saponaria Molina (Quillajaceae) bark triterpenoid saponin against iron-induced hepatotoxicity is compared to the standard N-acetylcysteine in adult male Wistar rats. MATERIALS AND METHODS: Animals were divided into (six) groups, namely a normal control, an N-acetylcysteine control (300 mg/kg/day, p...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28704189/chronic-hepatitis-due-to-gluten-enteropathy-a-case-report
#17
Irina I Ivanova, Denitsa Y Dukova, Pavlina G Boikova, Lili S Grudeva, Ivan B Shalev, Iskren A Kotzev
BACKGROUND: Celiac disease is an immune-mediated enteropathy precipitated by exposure to dietary gluten in genetically predisposed individuals. CASE DESCRIPTION: A 45-year-old Caucasian woman presented with severe iron-deficient anemia and mild elevation of liver enzymes. Upper endoscopy was done in the context of evaluation of anemia, which revealed reduced duodenal folds and mosaic pattern of the mucosa, but also grade II esophageal varices and portal hypertensive gastropathy...
June 1, 2017: Folia Medica
https://www.readbyqxmd.com/read/28698780/liver-iron-content-lic-in-adults-with-sickle-cell-disease-scd-correlation-with-serum-ferritin-and-liver-enzymes-concentrations-in-trasfusion-dependent-td-scd-and-non-transfusion-dependent-nt-scd-patients
#18
Mohamed Yassin, Ashraf Soliman, Vincenzo De Sanctis, Abdelqadir Nashwan, Sandra Abusamaan, Abbas Moustafa, Samah Kohla, Dina Soliman
INTRODUCTION: Sickle cell disease (SCD) is one of the leading causes of morbidity and mortality worldwide, causing damage and dysfunction in multiple organs. The complications of this disease are numerous, affect every organ and/or tissue in the body and vary considerably among patients over the time challenging its management. THE AIM OF OUR STUDY: To determine the iron status of 17 patients with non-transfusion-dependent sickle cell disease ( NT-SCD) patients and six patients with transfusion dependent sickle cell disease (TD- SCD) using both serum ferritin level (SF) and Ferriscan® evaluation of liver iron content (LIC)...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28689593/dermatologic-manifestations-of-chronic-hepatitis-c-infection
#19
REVIEW
Mehmet Sayiner, Pegah Golabi, Freba Farhat, Zobair M Younossi
Chronic hepatitis C virus (HCV) infection is associated with various extrahepatic manifestations, including dermatologic involvement mostly caused by immune complexes. Mixed cryoglobulinemia has a strong relationship with HCV with 95% of these patients being infected with HCV. Lichen planus is a disease of the squamous epithelium and may affect any part of the skin, with 4% to 24% of patients with lichen planus reported to have chronic HCV infection. Porphyria cutanea tarda is the most common form of porphyria, and it is thought that HCV interferes with iron stores, which can promote porphyria cutanea tarda...
August 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28679028/hepatic-iron-is-the-major-determinant-of-serum-ferritin-in-nafld-patients
#20
John D Ryan, Andrew E Armitage, Jeremy F Cobbold, Rajarshi Banerjee, Oscar Borsani, Paola Dongiovanni, Stefan Neubauer, Reza Morovat, Lai Mun Wang, Sant-Rayn Pasricha, Silvia Fargion, Jane Collier, Eleanor Barnes, Hal Drakesmith, Luca Valenti, Michael Pavlides
BACKGROUND AND AIMS: Elevated serum ferritin is common in NAFLD, and is associated with more advanced disease and increased mortality. Hyperferritinemia in NAFLD is often attributed to inflammation, while in other conditions ferritin closely reflects body iron stores. The aim of this study was to clarify the underlying cause of hyperferritinemia in NAFLD. METHODS: Ferritin levels were examined with markers of iron status, inflammation and liver injury across the clinical spectrum of NAFLD using blood, tissue and magnetic resonance (MR) imaging...
July 5, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
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