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Abbas S, Alam A, Abbas M, Abbas A, Ali J, Schilthuizen M, Romano D, Zhao CR. Lateralised courtship behaviour and its impact on mating success in Ostrinia furnacalis (Lepidoptera: Crambidae). BULLETIN OF ENTOMOLOGICAL RESEARCH 2024:1-9. [PMID: 38639207 DOI: 10.1017/s0007485324000178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Lateralisation is a well-established phenomenon observed in an increasing number of insect species. This study aims to obtain basic details on lateralisation in courtship and mating behaviour in Ostrinia furnacalis, the Asian corn borer. We conducted laboratory investigations to observe lateralisation in courtship and mating behaviours in adult O. furnacalis. Our goal was also to detect lateralised mating behaviour variations during sexual interactions and to elucidate how these variances might influence the mating success of males. Our findings reveal two distinct lateralised traits: male approaches from the right or left side of the female and the direction of male turning displays. Specifically, males approaching females from their right side predominantly exhibited left-biased 180° turning displays, while males approaching females from the left-side primarily displayed right-biased 180° turning displays. Notably, left-biased males, executing a 180° turn for end-to-end genital contact, initiated copulation with fewer attempts and began copulation earlier than their right-biased approaches with left-biased 180° turning displays. Furthermore, mating success was higher when males subsequently approached the right side of females during sexual encounters. Left-biased 180° turning males exhibited a higher number of successful mating interactions. These observations provide the first report on lateralisation in the reproductive behaviour of O. furnacalis under controlled laboratory conditions and hold promise for establishing reliable benchmarks for assessing and monitoring the quality of mass-produced individuals in pest control efforts.
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Affiliation(s)
- Sohail Abbas
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, 130118 PR China
| | - Aleena Alam
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, 130118 PR China
| | - Muneer Abbas
- Arid Zone Research Institute, Bhakkar, Punjab 30004 Pakistan
| | - Arzlan Abbas
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, 130118 PR China
| | - Jamin Ali
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, 130118 PR China
| | - Menno Schilthuizen
- Naturalis Biodiversity Center, Darwinweg 2, 2333CR Leiden, The Netherlands
- Institute for Biology Leiden, Leiden University, Sylviusweg 72, 2333BE Leiden, The Netherlands
| | - Donato Romano
- The BioRobotics Institute & Department of Excellence in Robotics and AI, Sant'Anna School of Advanced Studies, 56127 Pisa, Italy
| | - Chen Ri Zhao
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, 130118 PR China
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Nowak M, Schindler S, Storch M, Geyer S, Schönknecht P. Mammillary body and hypothalamic volumes in mood disorders. J Psychiatr Res 2023; 158:216-225. [PMID: 36603316 DOI: 10.1016/j.jpsychires.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/20/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022]
Abstract
We have previously reported an in vivo enlargement of the left hypothalamus in mood disorders using 7 T magnetic resonance imaging. The aim of this follow-up study was to find out whether the hypothalamic volume difference may be located in the mammillary bodies (MB) rather than being widespread across the hypothalamus. We developed and evaluated a detailed segmentation algorithm that allowed a reliable segmentation of the MBs, and applied it to 20 unmedicated (MDDu) and 20 medicated patients with major depressive disorder, 21 medicated patients with bipolar disorder, and 23 controls. 20 out of 23 healthy controls were matched to the MDDu. We tested for group differences in MB and hypothalamus without MB (HTh) volumes using analyses of covariance. Associations between both volumes of interest were analysed using bivariate and partial correlations. In contrast to postmortem findings, we found no statistically significant differences of the MB volumes between the study groups. Left HTh volumes differed significantly across the study groups after correction for intracranial volume (ICV) and for ICV and sex. Our result of an HTh enlargement in mood disorders was confirmed by a paired t-test between the matched pairs of MDDu and healthy controls using the native MB and HTh volumes. In the whole sample, MB volumes correlated significantly with the ipsilateral HTh volumes. Our results indicate a structural relationship between both volumes, and that our previous in vivo finding of a hypothalamus enlargement does not extend to the MB, but is limited to the HTh. The enlargement is more likely related to the dysregulation of the HPA axis than to cognitive dysfunctions accompanying mood disorders.
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Affiliation(s)
- Markus Nowak
- University Hospital Leipzig, Department of Psychiatry and Psychotherapy, Semmelweisstraße 10, 04103, Leipzig, Germany; Charité University of Medicine, Department of Psychiatry and Psychotherapy and St. Hedwig Hospital Berlin, Große Hamburger Straße 5-11, 10115, Berlin, Germany.
| | - Stephanie Schindler
- University Hospital Leipzig, Department of Psychiatry and Psychotherapy, Semmelweisstraße 10, 04103, Leipzig, Germany
| | - Melanie Storch
- University Hospital Leipzig, Department of Psychiatry and Psychotherapy, Semmelweisstraße 10, 04103, Leipzig, Germany
| | - Stefan Geyer
- Max Planck Institute for Human Cognitive and Brain Sciences, Department of Neurophysics, Stephanstraße 1a, 04103, Leipzig, Germany
| | - Peter Schönknecht
- University Hospital Leipzig, Department of Psychiatry and Psychotherapy, Semmelweisstraße 10, 04103, Leipzig, Germany; University Hospital Leipzig, Out-patient Department for Sexual-therapeutic Prevention and Forensic Psychiatry, Semmelweisstraße 10, 04103, Leipzig, Germany; Academic State Hospital Arnsdorf, Hufelandstraße 15, 01477, Arnsdorf, Germany
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Cutia CA, Leverton LK, Ge X, Youssef R, Raetzman LT, Christian-Hinman CA. Phenotypic differences based on lateralization of intrahippocampal kainic acid injection in female mice. Exp Neurol 2022; 355:114118. [PMID: 35597270 PMCID: PMC10462257 DOI: 10.1016/j.expneurol.2022.114118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 04/17/2022] [Accepted: 05/13/2022] [Indexed: 11/23/2022]
Abstract
Clinical evidence indicates that patients with temporal lobe epilepsy (TLE) often show differential outcomes of comorbid conditions in relation to the lateralization of the seizure focus. A particularly strong relationship exists between the side of seizure focus and the propensity for distinct reproductive endocrine comorbidities in women with TLE. Therefore, here we evaluated whether targeting of left or right dorsal hippocampus for intrahippocampal kainic acid (IHKA) injection, a model of TLE, produces different outcomes in hippocampal granule cell dispersion, body weight gain, and multiple measures of reproductive endocrine dysfunction in female mice. One, two, and four months after IHKA or saline injection, in vivo measurements of estrous cycles and weight were followed by ex vivo examination of hippocampal dentate granule cell dispersion, circulating ovarian hormone and corticosterone levels, ovarian morphology, and pituitary gene expression. IHKA mice with right-targeted injection (IHKA-R) showed greater granule cell dispersion and pituitary Fshb expression compared to mice with left-targeted injection (IHKA-L). By contrast, pituitary expression of Lhb and Gnrhr were higher in IHKA-L mice compared to IHKA-R, but these values were not different from respective saline-injected controls. IHKA-L mice also showed an increased rate of weight gain compared to IHKA-R mice. Increases in estrous cycle length, however, were similar in both IHKA-L and IHKA-R mice. These findings indicate that although major reproductive endocrine dysfunction phenotypes present similarly after targeting left or right dorsal hippocampus for IHKA injection, distinct underlying mechanisms based on lateralization of epileptogenic insult may contribute to produce similar emergent reproductive endocrine outcomes.
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Affiliation(s)
- Cathryn A Cutia
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Leanna K Leverton
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Xiyu Ge
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Rana Youssef
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Lori T Raetzman
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA; Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Catherine A Christian-Hinman
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA; Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA; Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA.
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Hypothalamic volume and asymmetry in the pediatric population: a retrospective MRI study. Brain Struct Funct 2022; 227:2489-2501. [PMID: 35972644 DOI: 10.1007/s00429-022-02542-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/24/2022] [Indexed: 11/02/2022]
Abstract
This study investigated age- and sex-related changes in the volumetric development and asymmetry of the normal hypothalamus from birth to 18. Individuals aged 0-18 with MRI from 2012 to 2020 were selected for this retrospective study. Seven hundred individuals (369 [52.7%] Males) who had 3D-T1 sequences and were radiologically normal were included in the study. Hypothalamus volume was calculated using MRICloud automated segmentation pipelines. Hypothalamus asymmetry was calculated as the difference between right and left volumes divided by the mean (in percent). The measurement results of 23 age groups were analyzed with SPSS (ver.23). The mean hypothalamic volume in the first year of life reached 69% of the mean hypothalamic volume between 0 and 18 years (1119.01 ± 196.09 mm3), 88% in the second year. The mean volume of the hypothalamus without mammillary body increased in the five-age segment, while it increased in the six-age segment with mammillary body. Although the hypothalamus volumes of males were larger than females in all age groups, a significant difference was found between the age groups of 3-8 and 12-18 years (p < 0.05). In the pediatric brain, the hypothalamus was right-lateralized between 2.39% and 14.02%. The first 2 years of life were critical in the volumetric development of the hypothalamus. A segmental and logarithmic increase in the hypothalamus volume was demonstrated. In the pediatric brain, asymmetry and sexual dimorphism were detected in the hypothalamus. Information on normal hypothalamus structure and development facilitates the recognition of abnormal developmental trajectories.
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Batool M, Fayyaz H, Alam MR. Asymmetric Opening of Mitochondrial Permeability Transition Pore in Mouse Brain Hemispheres: A Link to the Mitochondrial Calcium Uniporter Complex. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Kiss DS, Toth I, Jocsak G, Barany Z, Bartha T, Frenyo LV, Horvath TL, Zsarnovszky A. Functional Aspects of Hypothalamic Asymmetry. Brain Sci 2020; 10:brainsci10060389. [PMID: 32575391 PMCID: PMC7349050 DOI: 10.3390/brainsci10060389] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/08/2020] [Accepted: 06/16/2020] [Indexed: 01/12/2023] Open
Abstract
Anatomically, the brain is a symmetric structure. However, growing evidence suggests that certain higher brain functions are regulated by only one of the otherwise duplicated (and symmetric) brain halves. Hemispheric specialization correlates with phylogeny supporting intellectual evolution by providing an ergonomic way of brain processing. The more complex the task, the higher are the benefits of the functional lateralization (all higher functions show some degree of lateralized task sharing). Functional asymmetry has been broadly studied in several brain areas with mirrored halves, such as the telencephalon, hippocampus, etc. Despite its paired structure, the hypothalamus has been generally considered as a functionally unpaired unit, nonetheless the regulation of a vast number of strongly interrelated homeostatic processes are attributed to this relatively small brain region. In this review, we collected all available knowledge supporting the hypothesis that a functional lateralization of the hypothalamus exists. We collected and discussed findings from previous studies that have demonstrated lateralized hypothalamic control of the reproductive functions and energy expenditure. Also, sporadic data claims the existence of a partial functional asymmetry in the regulation of the circadian rhythm, body temperature and circulatory functions. This hitherto neglected data highlights the likely high-level ergonomics provided by such functional asymmetry.
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Affiliation(s)
- David Sandor Kiss
- Department of Physiology and Biochemistry, University of Veterinary Medicine, 1078 Budapest, Hungary; (I.T.); (G.J.); (Z.B.); (T.B.); (L.V.F.)
- Correspondence: ; Tel.: +36-1478-4247 or +36-1478-8406
| | - Istvan Toth
- Department of Physiology and Biochemistry, University of Veterinary Medicine, 1078 Budapest, Hungary; (I.T.); (G.J.); (Z.B.); (T.B.); (L.V.F.)
| | - Gergely Jocsak
- Department of Physiology and Biochemistry, University of Veterinary Medicine, 1078 Budapest, Hungary; (I.T.); (G.J.); (Z.B.); (T.B.); (L.V.F.)
| | - Zoltan Barany
- Department of Physiology and Biochemistry, University of Veterinary Medicine, 1078 Budapest, Hungary; (I.T.); (G.J.); (Z.B.); (T.B.); (L.V.F.)
| | - Tibor Bartha
- Department of Physiology and Biochemistry, University of Veterinary Medicine, 1078 Budapest, Hungary; (I.T.); (G.J.); (Z.B.); (T.B.); (L.V.F.)
| | - Laszlo V. Frenyo
- Department of Physiology and Biochemistry, University of Veterinary Medicine, 1078 Budapest, Hungary; (I.T.); (G.J.); (Z.B.); (T.B.); (L.V.F.)
| | - Tamas L. Horvath
- Department of Animal Physiology and Animal Health, Szent Istvan University, Faculty of Agricultural and Environmental Sciences, 2100 Gödöllő, Hungary; (T.L.H.); (A.Z.)
- Division of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Attila Zsarnovszky
- Department of Animal Physiology and Animal Health, Szent Istvan University, Faculty of Agricultural and Environmental Sciences, 2100 Gödöllő, Hungary; (T.L.H.); (A.Z.)
- Division of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
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