Relationship between sunlight and the age of onset of bipolar disorder: An international multisite study

Bauer, Michael; Glenn, Tasha; Alda, Martin; Andreassen, Ole A.; Angelopoulos, Elias; Ardau, Raffaella; Baethge, Christopher; Bauer, Rita; Bellivier, Frank; Belmaker, Robert H.; Berk, Michael; Bjella, Thomas; Bossini, Letizia; Bersudsky, Yuly; Cheung, Eric Yat Wo; Conell, Jörn; Zompo, Maria Del; Dodd, Seetal; Étain, Bruno; Fagiolini, Andrea; Frye, Mark A.; Fountoulakis, Kostas N.; Garneau-Fournier, Jade; González‐Pinto, Ana; Harima, Hirohiko; Hassel, Stefanie; Henry, Chantal; Iacovides, Apostolos; Isometsä, Erkki; Kapczinski, Flávio; Kliwicki, Sebastian; König, Barbara; Krogh, Rikke; Kunz, Maurício; Lafer, Beny; Larsen, Erik Roj; Lewitzka, Ute; López‐Jaramillo, Carlos; MacQueen, Glenda; Manchia, Mirko; Marsh, Wendy; Martínez‐Cengotitabengoa, Mónica; Melle, Ingrid; Monteith, Scott; Morken, Gunnar; Muñoz, Rodrigo A.; Nery, Fabiano G.; O′Donovan, Claire; Osher, Yamima; Pfennig, Andrea; Quiroz, Danilo; Ramesar, Raj; Rasgon, Natalie; Reif, Andreas; Ritter, Philipp; Rybakowski, Janusz; Sagduyu, Kemal; Scippa, Ângela M.; Severus, Emanuel; Simhandl, Christian; Stein, Dan J.; Strejilevich, Sergio; Sulaiman, Ahmad Hatim; Suominen, Kirsi; Tagata, Hiromi; Tatebayashi, Yoshitaka; Torrent, Carla; Vieta, Eduard; Viswanath, Biju; Wanchoo, Mihir J.; Zetin, Mark; Whybrow, Peter C.

doi:10.1016/j.jad.2014.05.032

Cited by 43 publications

(39 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All data in this analysis were collected previously to investigate the impact of solar insolation on the age of onset of bipolar disorder (Bauer et al, 2014 All patients in this study had a diagnosis of bipolar disorder made by a psychiatrist according to DSM-IV criteria. A minimal number of variables were requested to obtain data from locations with a wide range of solar insolation.…”

Section: Data Collectionmentioning

confidence: 99%

“…Data were obtained for a total of 5498 patients, slightly larger than that in the previous study (Bauer et al, 2014). Of the 5498 patients, 4054 had a diagnosis of bipolar I disorder, 1252 of bipolar II disorder and 192 of bipolar NOS.…”

Section: Database Characteristicsmentioning

confidence: 99%

“…This study analyzed if the hours of daylight parameters at the birth location would impact a base model to assess the relation between the age of onset of bipolar disorder and solar insolation, determined in prior research (Bauer et al, 2014). The base model included the following variables: maximum increase in solar insolation at the onset location, the interaction of family history and the maximum increase in solar insolation at the onset location, country median age for the onset location, and the birth cohort.…”

Section: Approach To Analysismentioning

confidence: 99%

“…It was postulated that exposure to light during early life imprints an individual's circadian clock, setting vulnerability to future environmental challenges to the circadian system (Ciarleglio et al, 2011;Erren et al, 2011). We previously found that the larger the springtime increase in solar insolation at the onset location, the younger the age of onset of bipolar I disorder, especially for those with a family history of mood disorders (Bauer et al, 2012;Bauer et al, 2014). Solar insolation is a measure of the electromagnetic energy from the sun that reaches a surface area on the earth in units of kWh/m 2 /day (kilowatt hours/square meters/day) (NASA, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of light exposure during early life on the age of onset of bipolar disorder

Bauer

Glenn²,

Alda

et al. 2015

Journal of Psychiatric Research

Self Cite

View full text Add to dashboard Cite

Section: Data Collectionmentioning

confidence: 99%

Section: Database Characteristicsmentioning

confidence: 99%

Section: Approach To Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of light exposure during early life on the age of onset of bipolar disorder

Bauer

Glenn²,

Alda

et al. 2015

Journal of Psychiatric Research

Self Cite

View full text Add to dashboard Cite

“…10 More recent studies, however, suggest that the seasonal variation in sunlight exposure is insufficient to explain circadian rhythm disruption and that other climatic variables, such as ultraviolet exposure levels, temperature, snow, rain, and light exposure during early life should be taken into consideration. [18][19][20][21] Thus, the aim of our study was to increase understanding about the influence of photoperiod variation by following a sample of Italian bipolar patients over a period of 24 months, focusing on inpatients.…”

Section: Introductionmentioning

confidence: 99%

Bipolar disorders: is there an influence of seasonality or photoperiod?

Aguglia

Borsotti

Maina

2017

Rev. Bras. Psiquiatr.

View full text Add to dashboard Cite

Objective: To increase understanding of the influence of photoperiod variation in patients with bipolar disorders. Methods: We followed a sample of Italian bipolar patients over a period of 24 months, focusing on inpatients. All patients admitted to the Psychiatric Inpatient Unit of San Luigi Gonzaga Hospital in Orbassano (Turin, Italy) between September 1, 2013 and August 31, 2015 were recruited. Sociodemographic and clinical data were collected. Results: Seven hundred and thirty patients were included. The admission rate for bipolar patients was significantly higher during May, June and July, when there was maximum sunlight exposure, although no seasonal pattern was found. Patients with (hypo)manic episodes were admitted more frequently during the spring and during longer photoperiods than those with major depressive episodes. Conclusions: Photoperiod is a key element in bipolar disorder, not only as an environmental factor but also as an important clinical parameter that should be considered during treatment.

show abstract

Bipolar Disorder from a Developmental Psychopathology Perspective: Focusing on Phenomenology, Etiology, and Neurobiology

Klimes‐Dougan

Kennedy

Cullen

2016

Developmental Psychopathology

View full text Add to dashboard Cite

The purpose of this chapter is to consider how a developmental psychopathology perspective can advance our understanding of bipolar disorder. In this chapter we start by discussing the phenomenology of the disorder. As this is a field in which scientific controversies abound, this section begins by placing bipolar disorder in a historical context. We consider the origins of current clinical diagnostic approaches and evaluate newly emerging empirical approaches that utilize dimensions of symptoms, behaviors, and neurobiological indexes. We then review prominent etiological theories of the illness, including work on environmental stressors and hazards as well as behavioral and genetic approaches. We highlight some of the most promising theories that account for both environmental and biological mechanisms of bipolar disorder. Additionally, because bipolar disorder can be considered a neurodevelopmental disorder, biological mechanisms are also discussed in the context of brain imaging research. We conclude the chapter with suggestions for translational research by considering how these developmental and neurodevelopmental models can inform intervention science and help identify promising new directions for future research.

show abstract

Relationship between sunlight and the age of onset of bipolar disorder: An international multisite study

Abstract: A large springtime increase in sunlight may have an important influence on the onset of bipolar disorder, especially in those with a family history of mood disorders.

Cited by 43 publications

References 79 publications

Influence of light exposure during early life on the age of onset of bipolar disorder

Influence of light exposure during early life on the age of onset of bipolar disorder

Bipolar disorders: is there an influence of seasonality or photoperiod?

Bipolar Disorder from a Developmental Psychopathology Perspective: Focusing on Phenomenology, Etiology, and Neurobiology

Contact Info

Product

Resources

About