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Cristina Ramona Cudalbu Moldovan

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Related publications (122)

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In vivo (13)C MRS in the mouse brain at 14.1 Tesla and metabolic flux quantification under infusion of [1,6-(13)C2]glucose

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Bernard Lanz, Carole Poitry-Yamate, Marta Lai

In vivo (13)C magnetic resonance spectroscopy (MRS) enables the investigation of cerebral metabolic compartmentation while, e.g. infusing (13)C-labeled glucose. Metabolic flux analysis of (13)C turnover previously yielded quantitative information of glutam ...

2018

2021 ISHEN guidelines on animal models of hepatic encephalopathy

Cristina Ramona Cudalbu Moldovan

This working group of the International Society of Hepatic Encephalopathy and Nitrogen Metabolism (ISHEN) was commissioned to summarize and update current efforts in the development and characterization of animal models of hepatic encephalopathy (HE). As d ...

WILEY2021

H-1 NMR spectroscopy of rat brain in vivo at 14.1 Tesla: Improvements in quantification of the neurochemical profile

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Lijing Xin

Ultra-short echo-time proton single voxel spectra of rat brain were obtained on a 14.1 T 26 cm horizontal bore system. At this field, the fitted linewidth in the brain tissue of adult rats was about 11 Hz. New, separated resonances ascribed to phosphocholi ...

Academic Press Inc - Elsevier Science2008

Inhibition of urease-mediated ammonia production by 2-octynohydroxamic acid in hepatic encephalopathy

Cristina Ramona Cudalbu Moldovan, Dunja Simicic, Katarzyna Pierzchala, Stefanita-Octavian Mitrea

Hepatic encephalopathy is a neuropsychiatric complication of liver disease which is partly associated with elevated ammonemia. Urea hydrolysis by urease-producing bacteria in the colon is often mentioned as one of the main routes of ammonia production in t ...

Nature Portfolio2024

Feasibility of in vivo N-15 MRS detection of hyperpolarized N-15 labeled choline in rats

Rolf Gruetter, Arnaud Comment, Cristina Ramona Cudalbu Moldovan, Sami Jannin, Ruud van Heeswijk

The increase of total choline in tumors has become an important biomarker in cancer diagnosis. Choline and choline metabolites can be measured in vivo and in vitro using multinuclear MRS. Recent in vivo C-13 MRS studies using labeled substrates enhanced vi ...

2010

The C57BL/6J Mouse Exhibits Sporadic Congenital Portosystemic Shunts

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Hongxia Lei, João Miguel das Neves Duarte

C57BL/6 mice are the most widely used strain of laboratory mice. Using in vivo proton Magnetic Resonance Spectroscopy (1H MRS), we have repeatedly observed an abnormal neurochemical profile in the brains of both wild-type and ge ...

Public Library of Science2013

MRS studies of neuroenergetics and glutamate/glutamine exchange in rats: Extensions to hyperammonemic models

Cristina Ramona Cudalbu Moldovan, Bernard Lanz, Veronika Rackayová

In vivo Magnetic Resonance Spectroscopy is a useful tool to characterize brain biochemistry as well as its alteration in a large number of major central nervous system diseases. The present review will focus on the study of the glutamate-glutamine cycle, a ...

Elsevier2017

Quantification of the neurochemical profile using simulated macromolecule resonances at 3 T

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Lijing Xin, Benoît Schaller

The broad resonances underlying the entire (1) H NMR spectrum of the brain, ascribed to macromolecules, can influence metabolite quantification. At the intermediate field strength of 3 T, distinct approaches for the determination of the macromolecule signa ...

Wiley-Blackwell2013

Brain edema: a valid endpoint for measuring hepatic encephalopathy?

Cristina Ramona Cudalbu Moldovan

Hepatic encephalopathy (HE) is a major complication of liver failure/disease which frequently develops during the progression of end-stage liver disease. This metabolic neuropsychiatric syndrome involves a spectrum of symptoms, including cognition impairme ...

Springer Verlag2016

In vivo brain macromolecule signals in healthy and glioblastoma mouse models: 1H magnetic resonance spectroscopy, post-processing and metabolite quantification at 14.1 T

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Mélanie Craveiro

In 1H magnetic resonance spectroscopy, macromolecule signals underlay metabolite signals, the understanding of which is necessary for reliable metabolite quantification. When macromolecule signals are measured using an inversion-recovery pulse sequence, sp ...

Wiley-Blackwell2014

Handling macromolecule signals in the quantification of the neurochemical profile

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan

In vivo localized proton magnetic resonance spectroscopy (1H MRS) became a powerful and unique technique to non-invasively investigate brain metabolism of rodents and humans. The main goal of 1H MRS is the reliable quantification of concentrations of metab ...

Ios Press2012

In vivo studies of brain metabolism in animal models of Hepatic Encephalopathy using (1)H Magnetic Resonance Spectroscopy

Cristina Ramona Cudalbu Moldovan

Hepatic encephalopathy (HE) is a common and severe neuropsychiatric complication present in acute and chronic liver disease. The unique advantages of high field (1)H MRS provide a method for assessing pathogenic mechanism, diagnosis and monitoring of HE, a ...

Springer US2013

Creatine in the central nervous system: From magnetic resonance spectroscopy to creatine deficiencies

Cristina Ramona Cudalbu Moldovan, Veronika Rackayová

Creatine (Cr) is an important organic compound acting as intracellular high-energy phosphate shuttle and in energy storage. While located in most cells where it plays its main roles in energy metabolism and cytoprotection, Cr is highly concentrated in musc ...

Elsevier2017

Methodological consensus on clinical proton MRS of the brain: Review and recommendations

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan

Proton MRS (1H MRS) provides noninvasive, quantitative metabolite profiles of tissue and has been shown to aid the clinical management of several brain diseases. Although most modern clinical MR scanners support MRS capabilities, routine use is largely res ...

Wiley2019

Longitudinal osmotic and neurometabolic changes in young rats with chronic cholestatic liver disease

Cristina Ramona Cudalbu Moldovan, Veronika Rackayová

Type C hepatic encephalopathy (type C HE) is increasingly suspected in children with chronic liver disease (CLD), and believed to underlie long-term neurocognitive difficulties. The molecular underpinnings of type C HE in both adults and children are incom ...

Nature Research2020

Bile Acids And Ammonium Contribute To Changes In Dendritic Spine Distribution In An Organotypic Culture Of Rat Hippocampus

Cristina Ramona Cudalbu Moldovan

WILEY2019

In Vivo Longitudinal (1)H MRS Study of Transgenic Mouse Models of Prion Disease in the Hippocampus and Cerebellum at 14.1 T

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Mélanie Craveiro

In vivo (1)H MR spectroscopy allows the non invasive characterization of brain metabolites and it has been used for studying brain metabolic changes in a wide range of neurodegenerative diseases. The prion diseases form a group of fatal neurodegenerative d ...

Springer Verlag2015

In Vivo Longitudinal 1H MRS Study of Hippocampal, Cereberal and Striatal Metabolic Changes in the Adult Brain Using an Animal Model of Chronic Hepatic Encephalopathy

Cristina Ramona Cudalbu Moldovan, Dunja Simicic, Katarzyna Pierzchala, Veronika Rackayová, Stefanita-Octavian Mitrea

LIPPINCOTT WILLIAMS & WILKINS2019

Neurometabolism in Grey Matter of Children With Chronic Liver Disease or Portosystemic Shunting: A 1H-MRS Study at 7T

Cristina Ramona Cudalbu Moldovan, Lijing Xin

LIPPINCOTT WILLIAMS & WILKINS2019

Metabolic And Transcriptional Profiles Of Gbm Invasion: Comparison Of Patients And Paired Patient Derived Xenografts Using1H Magnetic Resonance Spectroscopy And Imaging (7T And 14T) And Rna-Sequencing

Rolf Gruetter, Cristina Ramona Cudalbu Moldovan, Lijing Xin, Mario Gaetano Lepore, Marta Lai

OXFORD UNIV PRESS INC2018