223 results match your criteria: "Karolinska Institutet at Karolinska University Hospital-Huddinge[Affiliation]"
HLA
June 2019
BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, China.
A novel allele HLA-C*08:80 differs from HLA-C*08:01:01:01 by one nucleotide substitution at position 142.
View Article and Find Full Text PDFDig Liver Dis
July 2019
Division of Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden; Metabolism Unit, Department of Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden; Patient Area Nephrology and Endocrinology, Inflammation and Infection Theme, Karolinska University Hospital, Stockholm, Sweden. Electronic address:
Depletion of the cholesterol esterifying enzyme acyl-Coenzyme A: cholesterol acyltransferase 2 (ACAT2, encoded by Soat2) protects mice from atherosclerosis, diet-induced hypercholesterolemia, and hepatic steatosis when fed high-cholesterol diet. The glucose transporter 2 (GLUT2) represents the main gate of glucose uptake by the liver. Lipid synthesis from glucose (de novo lipogenesis; DNL) plays a pivotal role in the development of hepatic steatosis.
View Article and Find Full Text PDFAllergy Asthma Clin Immunol
January 2019
1Division of Clinical Immunology and Transfusion Medicine, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden.
Background: Atypical X-linked severe combined immunodeficiency (X-SCID) is a variant of cellular immunodeficiency due to hypomorphic mutations in the interleukin 2 receptor gamma () gene. Due to a leaky clinical phenotype, diagnosis and appropriate treatment are challenging in these patients.
Case Presentation: We report a 16-year-old patient with a T B NK cellular immunodeficiency due to a novel nonsense mutation in exon 8 (p.
J Am Heart Assoc
December 2018
4 Patient Area Endocrinology and Nephrology, Inflammation and Infection Theme Karolinska University Hospital Stockholm Sweden.
Background In randomized trials (SHARP [Study of Heart and Renal Protection], IMPROVE -IT [Improved Reduction of Outcomes: Vytorin Efficacy International Trial]), combination of statin and ezetimibe resulted in additional reduction of cardiovascular events. The reduction was greater in patients with type 2 diabetes mellitus (T2 DM ), where elevated remnant cholesterol and high cardiovascular disease risk is characteristic. To evaluate possible causes behind these results, 40 patients eligible for cholecystectomy, randomized to simvastatin, ezetimibe, combined treatment (simvastatin+ezetimibe), or placebo treatment during 4 weeks before surgery, were studied.
View Article and Find Full Text PDFMol Cell Endocrinol
January 2019
Department of Biosciences and Nutrition Huddinge, Karolinska Institutet, Sweden; Department of Biology and Biochemistry, Center for Nuclear Receptors and Cell Signalling, University of Houston, Houston, TX, USA.
Objective: Estrogens play a key role in the distribution of adipose tissue and have their action by binding to both estrogen receptors (ER), α and β. Although ERβ has a role in the energy metabolism, limited data of the physiological mechanism and metabolic response involved in the pharmacological activation of ERβ is available.
Methods: For clinical relevance, non-ovariectomized female mice were subjected to high fat diet together with pharmacological (DIP - 4-(2-(3,5-dimethylisoxazol-4-yl)-1H-indol-3-yl)phenol) interventions to ERβ selective activation.
Front Endocrinol (Lausanne)
July 2018
Karolinska Institutet/AstraZeneca Integrated Cardio Metabolic Center, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden.
Over the past two decades it has become increasing clear that injury and loss of podocytes is an early and common clinical observation presented in many forms of glomerulopathy and chronic kidney disease. Identification of disease-causing monogenic mutations in numerous podocyte-expressed genes as well as studies conducted using preclinical animal models have shown that the podocyte plays a central role in establishing kidney dysfunction. In this review, we summarize current knowledge regarding the potential for podocyte-targeted therapies and give our view on how a deeper understanding of the molecular makeup of the podocyte will enable future therapeutic interventions.
View Article and Find Full Text PDFKidney Int
December 2018
Pharmaceutical Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden.
Development of physiologically relevant cellular models with strong translatability to human pathophysiology is critical for identification and validation of novel therapeutic targets. Herein we describe a detailed protocol for generation of an advanced 3-dimensional kidney cellular model using induced pluripotent stem cells, where differentiation and maturation of kidney progenitors and podocytes can be monitored in live cells due to CRISPR/Cas9-mediated fluorescent tagging of kidney lineage markers (SIX2 and NPHS1). Utilizing these cell lines, we have refined the previously published procedures to generate a new, higher throughput protocol suitable for drug discovery.
View Article and Find Full Text PDFJ Intern Med
November 2018
Metabolism Unit, Endocrinology, Metabolism and Diabetes, Department of Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden.
Background And Objectives: Bile acids (BAs) traversing the enterohepatic circulation (EHC) influence important metabolic pathways. By determining individual serum BAs in relation to markers of metabolic activity, we explored how diurnal variations in their EHC relate to hepatic metabolism in normal humans.
Methods: Serum BAs, fibroblast growth factor 19 (FGF19), lipoproteins, glucose/insulin and markers of cholesterol and BA syntheses were monitored for 32 h in 8 healthy males.
Eur J Haematol
October 2018
Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
Background: AnWj is a high-incidence blood group antigen associated with three clinical disorders: lymphoid malignancies, immunologic disorders, and autoimmune hemolytic anemia. The aim of this study was to determine the genetic basis of an inherited AnWj-negative phenotype.
Methods: We identified a consanguineous family with two AnWj-negative siblings and 4 additional AnWj-negative individuals without known familial relationship to the index family.
Gastroenterology
October 2018
Metabolism Unit and Integrated Cardio Metabolic Center, Department of Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden. Electronic address:
Bile acid (BA) synthesis is regulated through suppression of hepatic cholesterol 7α-hydroxylase via farnesoid X receptor (FXR) activation in hepatocytes and/or enterocytes; in enterocytes, this process requires FGF19 signaling. To study these pathways, we quantified markers of BA synthesis (7α-hydroxy-4-cholesten-3-one [C4]) and cholesterol production (lathosterol), fibroblast growth factor (FGF)19, and BAs in serum from healthy male volunteers given 1 oral dose of the nonsteroidal FXR agonist Px-102 (0.15 mg/kg, 0.
View Article and Find Full Text PDFGenet Med
January 2019
Division of Clinical Immunology, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden.
Purpose: The etiology of 80% of patients with primary antibody deficiency (PAD), the second most common type of human immune system disorder after human immunodeficiency virus infection, is yet unknown.
Methods: Clinical/immunological phenotyping and exome sequencing of a cohort of 126 PAD patients (55.5% male, 95.
J Am Soc Nephrol
June 2018
Karolinska Institutet/AstraZeneca Integrated Cardio Metabolic Center, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden;
Renal glomeruli are the primary target of injury in diabetic nephropathy (DN), and the glomerular podocyte has a key role in disease progression. To identify potential novel therapeutic targets for DN, we performed high-throughput molecular profiling of G protein-coupled receptors (GPCRs) using human glomeruli. We identified an orphan GPCR, Gprc5a, as a highly podocyte-specific gene, the expression of which was significantly downregulated in glomeruli of patients with DN compared with those without DN.
View Article and Find Full Text PDFEur J Clin Pharmacol
July 2018
Department of Medicine, Division of Infectious Diseases, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden.
Purpose: Introduction of the direct-acting antivirals (DAAs) for treatment of chronic hepatitis C (CHC) infection has been challenging in all health systems. In Sweden, a national protocol for managed introduction was developed. It was optional, but all county councils agreed to implement and follow it.
View Article and Find Full Text PDFSci Rep
March 2018
KI/AZ Integrated CardioMetabolic Center, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden.
The kidney ultrafiltration barrier is formed of endothelial cells, the glomerular basement membrane and podocytes. Podocytes have a central role in normal physiology and disease pathogenesis of the glomerulus. Signaling through epidermal growth factor receptor (EGFR) in podocytes mediates development of many glomerular disease processes.
View Article and Find Full Text PDFBMC Health Serv Res
March 2018
Division of Clinical Pharmacology, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden.
Background: Involving patients in decisions about their pharmacotherapy is crucial for a satisfactory treatment outcome. Information and opinions about medicines are available from a variety of sources. The Wise List is the drug formulary of recommended essential medicines for the Stockholm healthcare region and is issued by the Drug and Therapeutics Committee (DTC).
View Article and Find Full Text PDFPhysiol Rep
December 2017
Oxford Centre for Diabetes, Endocrinology and Metabolism, Radcliffe Department of Medicine, University of Oxford Churchill Hospital, Oxford, United Kingdom
Human primary hepatocytes are the gold standard for investigating lipid metabolism in nonalcoholic fatty liver disease (NAFLD); however, due to limitations including availability and donor variability, the hepatoma cell lines Huh7 and HepG2 are commonly used. Culturing these cell lines in human serum (HS) has been reported to improve functionality; however, direct comparison of fatty acid (FA) metabolism in response to culturing in HS is lacking. The aim of this study was to compare FA metabolism between HepG2 and Huh7 cells in response to culturing in different sera.
View Article and Find Full Text PDFKidney Int
April 2018
Science for Life Laboratory, Department of Applied Physics, Royal Institute of Technology, Solna, Sweden; Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden. Electronic address:
The glomerular filtration barrier, has historically only been spatially resolved using electron microscopy due to the nanometer-scale dimensions of these structures. Recently, it was shown that the nanoscale distribution of proteins in the slit diaphragm can be resolved by fluorescence based stimulated emission depletion microscopy, in combination with optical clearing. Fluorescence microscopy has advantages over electron microscopy in terms of multiplex imaging of different epitopes, and also the amount of volumetric data that can be extracted from thicker samples.
View Article and Find Full Text PDFJ Hepatol
May 2018
Department of Renal Medicine, CLINTEC, Karolinska Institutet, Stockholm, Sweden.
Background & Aims: Several studies have shown that chronic hepatitis C (CHC) infection has a negative impact on kidney function, as well as survival, in patients with chronic kidney disease (CKD) or on hemodialysis. The aim of this nationwide registry study was to describe renal disease in Swedish patients with CHC.
Methods: In the present study, patients were identified for CHC (B18.
J Autoimmun
March 2018
Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, SE-14186, Stockholm, Sweden; BGI-Shenzhen, Shenzhen, China, China National GeneBank-Shenzhen, 518083, Shenzhen, China.
Objective: To identify potential causative markers involved in the development of early-onset myasthenia gravis (EOMG) in the MHC and non-MHC regions that may interact with the HLA-B*08:01 allele.
Methods: We analyzed 583 MG patients and identified 5 patients homozygous for the disease-associated ancestral haplotype 8.1 (HLA-A*01:01, B*08:01, DRB1*03:01, DQB1*02:01).
Microbiol Res
December 2017
Department of Laboratory Medicine, Division of Clinical Immunology and Transfusion Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, 14186, Stockholm, Sweden.
Lactobacillus rhamnosus DSM 14870 and Lactobacillus gasseri DSM 14869 were previously isolated from the vaginal epithelial cells (VEC) of healthy women and selected for the development of the vaginal EcoVag probiotic capsules. EcoVag was subsequently shown to provide long-term cure and reduce relapse of bacterial vaginosis (BV) as an adjunct to antibiotic therapy. To identify genes potentially involved in probiotic activity, we performed genome sequencing and characterization of the two strains.
View Article and Find Full Text PDFMicrob Cell Fact
August 2017
Division of Clinical Immunology and Transfusion Medicine, Department of Laboratory Medicine, Karolinska Institutet at Karolinska University Hospital Huddinge, 141 86, Stockholm, Sweden.
Background: Interleukin-22 (IL-22) plays a prominent role in epithelial regeneration and dampening of chronic inflammatory responses by protecting intestinal stem cells from immune-mediated tissue damage. IL-22 has a considerable therapeutic potential in graft-versus-host disease (GVHD), which is a frequent and challenging complication following allogeneic stem cell transplantation. The aim of our study was to engineer Lactobacillus for delivery of IL-22 directly to the intestinal mucosa as a new therapeutic strategy for GVHD.
View Article and Find Full Text PDFScand J Immunol
October 2017
Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran.
Common variable immunodeficiency (CVID) is the most frequent symptomatic primary immunodeficiency disease, and its prevalence varies significantly among different population. Minority of CVID patients present a familial aggregation suggesting a higher probability of heritable genetic defects. A total of 235 registered CVID patients were evaluated in this cohort study.
View Article and Find Full Text PDFMethods Mol Biol
April 2018
Department of Medicine, Karolinska Institutet/AstraZeneca Integrated Cardio Metabolic Center, Karolinska Institutet at Karolinska University Hospital Huddinge, 141 57, Stockholm, Sweden.
Liver perfusion is a common technique used to isolate parenchymal and non-parenchymal liver cells for in vitro experiments. This method allows hepatic cells to be separated based on their size and weight, by centrifugation using a density gradient. To date, other methods allow the isolation of only one viable hepatic cellular fraction from a single mouse; either parenchymal (hepatocytes) or non-parenchymal cells (i.
View Article and Find Full Text PDFJ Investig Allergol Clin Immunol
August 2017
Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
Primary immunodeficiency disorders (PIDs) are caused by 1 or more defects of the immune system. Patients are more likely to experience recurrent and/or severe infections and tend to develop a wide range of complications. Respiratory diseases are the main and initial manifestation in most cases and the most common complication.
View Article and Find Full Text PDFClin Immunol
October 2017
Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran. Electronic address:
Non-homologous end-joining (NHEJ) is a pathway that repairs double-strand breaks (DSB) in DNA and plays a vital role in V(D)J recombination of immunoglobulin genes. Cernunnos is a DNA repair factor that is involved in nonhomologous end-joining (NHEJ) process. Impairment in Cernunnos leads to a genetic disease characterized by neural disorders, immunodeficiency and increased radiosensitivity.
View Article and Find Full Text PDF