Michaela Ratzenhofer

University of Graz

4 Papers

10 Citations

Michaela Ratzenhofer is an academic researcher from University of Graz. The author has contributed to research in topics: Medicine & Internal medicine. The author has co-authored 4 publications.

Author Tools

Create citation map

Create Author Profile

Analyze Michaela Ratzenhofer's Top Papers

Chat about Author

Papers

•Journal Article•10.1186/S40345-021-00231-7

Variations in seasonal solar insolation are associated with a history of suicide attempts in bipolar I disorder

Michael Bauer,Tasha Glenn,Eric D. Achtyes,Martin Alda,Esen Ağaoğlu,Kürşat Altinbaş,Ole A. Andreassen,Elias Angelopoulos,Raffaella Ardau,Edgar Arrua Vares,Memduha Aydin,Yavuz Ayhan,Christopher Baethge,Rita Bauer,Bernhard T. Baune,Bernhard T. Baune,Bernhard T. Baune,Ceylan Balaban,Claudia Becerra-Palars,Aniruddh P. Behere,Prakash B Behere,Habte Belete,Tilahun Belete,Gabriel Okawa Belizario,Frank Bellivier,Robert H. Belmaker,Francesco Benedetti,Michael Berk,Michael Berk,Yuly Bersudsky,Sule Bicakci,Sule Bicakci,Harriet Birabwa-Oketcho,Thomas Bjella,Conan Brady,Jorge Cabrera,Marco Cappucciati,Angela Marianne Paredes Castro,Wei Ling Chen,Eric Yat Wo Cheung,Silvia Chiesa,Marie Crowe,Alessandro Cuomo,Sara Dallaspezia,Maria Del Zompo,Pratikkumar Desai,Seetal Dodd,Seetal Dodd,Markus Donix,Bruno Etain,Andrea Fagiolini,Frederike T. Fellendorf,Ewa Ferensztajn-Rochowiak,Jess G. Fiedorowicz,Kostas N. Fountoulakis,Mark A. Frye,Pierre A. Geoffroy,Ana González-Pinto,John F. Gottlieb,Paul Grof,Bartholomeus C M Haarman,Hirohiko Harima,Mathias Hasse-Sousa,Chantal Henry,Lone Hoffding,Josselin Houenou,Josselin Houenou,Massimiliano Imbesi,Erkki Isometsä,Erkki Isometsä,Maja Ivkovic,Sven Janno,Simon Johnsen,Flávio Kapczinski,Gregory N. Karakatsoulis,Mathias Kardell,Lars Vedel Kessing,Seong Jae Kim,Barbara König,Timur L. Kot,Michael Koval,Maurício Kunz,Beny Lafer,Mikael Landén,Mikael Landén,Erik Roj Larsen,Melanie Lenger,Ute Lewitzka,Rasmus Wentzer Licht,Carlos López-Jaramillo,Alan MacKenzie,Helle Østergaard Madsen,Simone Alberte Kongstad A. Madsen,Jayant Mahadevan,Agustine Mahardika,Mirko Manchia,Mirko Manchia,Wendy K. Marsh,Mónica Martínez-Cengotitabengoa,Klaus Martiny,Yuki Mashima,Declan M. McLoughlin,Ybe Meesters,Ingrid Melle,Fatima Meza-Urzua,Mok Yee Ming,Scott Monteith,Muthukumaran Moorthy,Gunnar Morken,Enrica Mosca,Anton A. Mozzhegorov,Rodrigo A. Munoz,Starlin V. Mythri,Fethi Nacef,Ravi Kumar Nadella,Takako Nakanotani,René Ernst Nielsen,Claire O‘Donovan,Adel Omrani,Yamima Osher,Uta Ouali,Maja Pantovic-Stefanovic,Pornjira Pariwatcharakul,Joanne Petite,Andrea Pfennig,Yolanda Pica Ruiz,Maximilian Pilhatsch,Marco Pinna,Maurizio Pompili,Richard J Porter,Danilo Quiroz,Francisco Diego Rabelo-da-Ponte,Raj Ramesar,Natalie L. Rasgon,Woraphat Ratta-apha,Michaela Ratzenhofer,Maria Redahan,M. S. Reddy,Andreas Reif,Eva Z. Reininghaus,Jenny Gringer Richards,Philipp Ritter,Janusz K. Rybakowski,Leela Sathyaputri,Ângela Miranda Scippa,Christian Simhandl,Emanuel Severus,Daniel J. Smith,José M. Smith,Paul W. Stackhouse,Dan J. Stein,Kellen Stilwell,Sergio Strejilevich,Kuan-Pin Su,Kuan-Pin Su,Mythily Subramaniam,Ahmad Hatim Sulaiman,Kirsi Suominen,Andi J. Tanra,Yoshitaka Tatebayashi,Wen Lin Teh,Leonardo Tondo,Carla Torrent,Daniel Tuinstra,Takahito Uchida,Arne E. Vaaler,Julia Veeh,Eduard Vieta,Biju Viswanath,María Yoldi-Negrete,Oguz Kaan Yalcinkaya,Allan H. Young,Yosra Zgueb,Peter C. Whybrow +173 moreDresden University of Technology,Michigan State University,Dalhousie University,Hacettepe University,Selçuk University,Oslo University Hospital,National and Kapodistrian University of Athens,University of Cagliari,University of Cologne,University of Melbourne,University of Münster,Florey Institute of Neuroscience and Mental Health,Goethe University Frankfurt,Jawaharlal Nehru Medical College, Aligarh,Bahir Dar University,University of São Paulo,University of Paris,Ben-Gurion University of the Negev,Vita-Salute San Raffaele University,Deakin University,Başkent University,Butabika Hospital,Trinity College, Dublin,University of Otago,University of Siena,Mental Health Services,University of Graz,Poznan University of Medical Sciences,University of Ottawa,Aristotle University of Thessaloniki,Mayo Clinic,University of the Basque Country,Northwestern University,University of Toronto,University Medical Center Groningen,Tokyo Metropolitan Matsuzawa Hospital,Universidade Federal do Rio Grande do Sul,University of Southern Denmark,Université Paris-Saclay,University of Helsinki,National Institutes of Health,University of Tartu,Aalborg University,University of Gothenburg,Karolinska Institutet,University of Antioquia,NHS Greater Glasgow and Clyde,University of Copenhagen,National Institute of Mental Health and Neurosciences,University of Massachusetts Medical School,Keio University,Norwegian University of Science and Technology,University of California, San Diego,Tunis University,Institute of Medical Science,Mahidol University,Sapienza University of Rome,Diego Portales University,University of Cape Town,Stanford University,University of Iowa,Federal University of Bahia,Privat Group,University of Edinburgh,Favaloro University,Langley Research Center,China Medical University (Taiwan),Carnegie Mellon University,University of Malaya,Hasanuddin University,Harvard University,University of Barcelona,King's College London,Semel Institute for Neuroscience and Human Behavior

- 01 Sep 2021

- International Journal of Bipolar Disorde...

Show Less

TL;DR: In a previous exploratory study of patients with bipolar I disorder, we found that a history of suicide attempts was associated with differences between winter and summer levels of solar insolation.

...read moreread less

•Journal Article•10.1186/S40345-021-00222-8

Psychological symptoms during and after Austrian first lockdown in individuals with bipolar disorder? A follow-up control-group investigation.

Nina Dalkner,Jolana Wagner-Skacel,Michaela Ratzenhofer,Frederike T. Fellendorf,Melanie Lenger,Alexander Maget,Adelina Tmava-Berisha,Rene Pilz,Robert Queissner,Carlo Hamm,Susanne Bengesser,Martina Platzer,Armin Birner,Eva Z. Reininghaus +13 moreUniversity of Graz,Medical University of Graz

- 01 Jun 2021

- International Journal of Bipolar Disorde...

Show Less

TL;DR: In this article, a survey was conducted in Austria at two points of measurement (T1 April 2020 during the first lockdown vs. T2 May 2020 at post-lockdown) and two groups (patients vs. healthy controls) was used.

...read moreread less

•Journal Article•10.3389/FPSYT.2021.641241

Monitoring Sleep Changes via a Smartphone App in Bipolar Disorder: Practical Issues and Validation of a Potential Diagnostic Tool.

Frederike T. Fellendorf,Carlo Hamm,Nina Dalkner,Martina Platzer,Matteo C. Sattler,Susanne Bengesser,Melanie Lenger,Rene Pilz,Armin Birner,Robert Queissner,Adelina Tmava-Berisha,Michaela Ratzenhofer,Alexander Maget,Mireille N M van Poppel,Eva Z. Reininghaus +14 moreUniversity of Graz

- 24 Mar 2021

- Frontiers in Psychiatry

Show Less

TL;DR: In this article, the authors used UP! to measure changes in sleep durations accurately, and they found that UP! is a valid tool for measuring falling asleep and waking-up times of individuals with bipolar disorder.

...read moreread less

•Journal Article•10.3390/ANTIOX10111795

Tryptophan Metabolism in Bipolar Disorder in a Longitudinal Setting.

Frederike T. Fellendorf,Johanna M. Gostner,Melanie Lenger,Martina Platzer,Armin Birner,Alexander Maget,Robert Queissner,Adelina Tmava-Berisha,Cornelia A. Pater,Michaela Ratzenhofer,Jolana Wagner-Skacel,Susanne Bengesser,Nina Dalkner,Dietmar Fuchs,Eva Z. Reininghaus +14 moreUniversity of Graz,Innsbruck Medical University

- 10 Nov 2021

- Antioxidants

Show Less

TL;DR: In this paper, the authors investigated tryptophan metabolism in bipolar disorder compared to controls (C), stratified by weight classes, in a longitudinal setting, dependent on the incidence of BD episodes.

...read moreread less