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Joel D, Smith CJ, Veenema AH. Beyond the binary: Characterizing the relationships between sex and neuropeptide receptor binding density measures in the rat brain. Horm Behav 2024; 159:105471. [PMID: 38128247 DOI: 10.1016/j.yhbeh.2023.105471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/30/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
Sex differences exist in numerous parameters of the brain. Yet, sex-related factors are part of a large set of variables that interact to affect many aspects of brain structure and function. This raises questions regarding how to interpret findings of sex differences at the level of single brain measures and the brain as a whole. In the present study, we reanalyzed two datasets consisting of measures of oxytocin, vasopressin V1a, and mu opioid receptor binding densities in multiple brain regions in rats. At the level of single brain measures, we found that sex differences were rarely dimorphic and were largely persistent across estrous stage and parental status but not across age or context. At the level of aggregates of brain measures showing sex differences, we tested whether individual brains are 'mosaics' of female-typical and male-typical measures or are internally consistent, having either only female-typical or only male-typical measures. We found mosaicism for measures showing overlap between females and males. Mosaicism was higher a) with a larger number of measures, b) with smaller effect sizes of the sex difference in these measures, and c) in rats with more diverse life experiences. Together, these results highlight the limitations of the binary framework for interpreting sex effects on the brain and suggest two complementary pathways to studying the contribution of sex to brain function: (1) focusing on measures showing dimorphic and persistent sex differences and (2) exploring the relations between specific brain mosaics and specific endpoints.
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Affiliation(s)
- Daphna Joel
- School of Psychological Sciences and Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel.
| | - Caroline J Smith
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, USA.
| | - Alexa H Veenema
- Neurobiology of Social Behavior Laboratory, Department of Psychology & Neuroscience Program, Michigan State University, East Lansing, USA.
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Shetty D, Amare PK, Mohanty P, Talker E, Chaubal K, Jain H, Tembhare P, Patkar N, Chaturvedi A, Subramanian PG, Moulik N, Dhamne C, Jain H, Bagal B, Narula G, Sengar M, Khattry N, Banavali S. Investigating the clinical, hematological and cytogenetic profile of endoreduplicated hypodiploids in BCP-ALL. Blood Cells Mol Dis 2020; 85:102465. [PMID: 32693366 DOI: 10.1016/j.bcmd.2020.102465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/07/2020] [Accepted: 07/07/2020] [Indexed: 10/23/2022]
Abstract
Ploidy, besides known translocations in lymphoblasts, is a strong predictor of prognosis in B- cell progenitor acute lymphoblastic leukemia (BCP-ALL). While hyperdiploidy with >50 chromosomes shows a favourable outcome, hypodiploidy with <45 chromosomes have a dismal clinical outcome. However, there exists a small subset where both the hypodiploid and hyperdiploid clones are apparent either by cytogenetics or flow cytometry and are defined partially masked hypodiploids or mosaics based on the percentage of clonal population. These patients are essentially hypodiploids, and show the hyperdiploid clone as a consequence of endoreduplication of the primary hypodiploid clone- A phenomenon of successive replication of genome without mitosis (cytokinesis) resulting in increased ploidy. In the current study, we present the complete clinical, hematological and cytogenetic profile of 11 such newly diagnosed mosaics or partially masked hypodiploid BCP-ALL cases.
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Affiliation(s)
- Dhanlaxmi Shetty
- Cancer Cytogenetics Department, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India.
| | - Pratibha Kadam Amare
- Cancer Cytogenetics Department, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India
| | - Purvi Mohanty
- Cancer Cytogenetics Department, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India
| | - Elizabeth Talker
- Cancer Cytogenetics Department, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India
| | - Kruti Chaubal
- Cancer Cytogenetics Department, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India
| | - Hemani Jain
- Cancer Cytogenetics Department, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India
| | - Prashant Tembhare
- Department of Hematopathology, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Nikhil Patkar
- Department of Hematopathology, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Anumeha Chaturvedi
- Department of Hematopathology, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India
| | - P G Subramanian
- Department of Hematopathology, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Nirmalya Moulik
- Department of Medical Oncology, Tata Memorial Hospital (TMH), Parel, Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Chetan Dhamne
- Department of Medical Oncology, Tata Memorial Hospital (TMH), Parel, Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Hasmukh Jain
- Department of Medical Oncology, Tata Memorial Hospital (TMH), Parel, Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Bhausaheb Bagal
- Department of Medical Oncology, Tata Memorial Hospital (TMH), Parel, Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Gaurav Narula
- Department of Medical Oncology, Tata Memorial Hospital (TMH), Parel, Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Manju Sengar
- Department of Medical Oncology, Tata Memorial Hospital (TMH), Parel, Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Navin Khattry
- Department of Medical Oncology, Advanced Centre for Treatment Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
| | - Shripad Banavali
- Department of Medical Oncology, Tata Memorial Hospital (TMH), Parel, Mumbai, India; Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, India
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Goldenberg A, Marguet F, Gilard V, Cardine AM, Hassani A, Doz F, Radi S, Vasseur S, Bou J, Branchaud M, Houdayer C, Baert-Desurmont S, Laquerriere A, Frebourg T. Mosaic PTEN alteration in the neural crest during embryogenesis results in multiple nervous system hamartomas. Acta Neuropathol Commun 2019; 7:191. [PMID: 31796102 DOI: 10.1186/s40478-019-0841-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 11/06/2019] [Indexed: 11/10/2022] Open
Abstract
The contribution of mosaic alterations to tumors of the nervous system and to non-malignant neurological diseases has been unmasked thanks to the development of Next Generation Sequencing (NGS) technologies. We report here the case of a young patient without any remarkable familial medical history who was first referred at 7 years of age, for an autism spectrum disorder (ASD) of Asperger type, not associated with macrocephaly. The patient subsequently presented at 10 years of age with multiple nodular lesions located within the trigeminal, facial and acoustic nerve ganglia and at the L3 level. Histological examination of this latter lesion revealed a glioneuronal hamartoma, exhibiting heterogeneous PTEN immunoreactivity, astrocyte and endothelial cell nuclei expressing PTEN, but not ganglion cells. NGS performed on the hamartoma allowed the detection of a PTEN pathogenic variant in 30% of the reads. The presence of this variant in the DNA extracted from blood and buccal swabs in 3.5 and 11% of the NGS reads, respectively, confirmed the mosaic state of the PTEN variant. The anatomical distribution of the lesions suggests that the mutational event affecting PTEN occurred in neural crest progenitors, thus explaining the absence of macrocephaly. This report shows that mosaic alteration of PTEN may result in multiple central and peripheral nervous system hamartomas and that the presence of such alteration should be considered in patients with multiple nervous system masses, even in the absence of cardinal features of PTEN hamartoma tumor syndrome, especially macrocephaly.
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Chen X, Li H, Mao Y, Xu X, Lv J, Zhou L, Lin X, Tang S. Subtelomeric multiplex ligation-dependent probe amplification as a supplement for rapid prenatal detection of fetal chromosomal aberrations. Mol Cytogenet 2014; 7:96. [PMID: 25506396 PMCID: PMC4265491 DOI: 10.1186/s13039-014-0096-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 11/28/2014] [Indexed: 12/18/2022] Open
Abstract
Background Pregnant women with high-risk indications are highly suspected of fetal chromosomal aberrations. To determine whether Multiplex Ligation-dependent Probe Amplification (MLPA) using subtelomeric probe mixes (P036-E2 and P070-B2) is a reliable method for rapid detection of fetal chromosomal aberrations. The subtelomeric MLPA probe mixes were used to evaluate 50 blood samples from healthy individuals. 168 amniocytes and 182 umbilical cord blood samples from high-risk fetuses were analyzed using the same subtelomeric MLPA probe sets. Karyotyping was also performed in all cases of high-risk pregnancies, and single nucleotide polymorphism array analysis was used to confirm submicroscopic and ambiguous results from MLPA/karyotyping. Results Subtelomeric MLPA analysis of normal samples showed normal result in all cases by use of P036-E2 probe mix, while P070-B2 probe mix gave normal results for all but one case. In one normal control case P070-B2 produced a duplicated signal of probe for 13q34. In the high-risk group, totally 44 chromosomal abnormalities were found by karyotyping and MLPA, including 23 aneuploidies and 21 rearrangements or mosaics. MLPA detected all 23 aneuploidies, 12 rearrangements and 1 mosaic. Importantly, MLPA revealed 4 chromosomal translocations, 2 small supernumerary marker chromosomes (sSMCs), and 3 subtelomeric imbalances that were not well characterized or not detectable by karyotyping. However, MLPA showed negetive results for the remaining 8 rearrangements or mosaics, including 3 low mosaic aneuploidies, 1 inherited sSMC, and 4 paracentric inversions. Conclusions Results suggest that combined use of subtelomeric MLPA and karyotyping may be an alternative method for using karyotype analyses alone in rapid detection of aneuploidies, rearrangements, and sSMCs. Electronic supplementary material The online version of this article (doi:10.1186/s13039-014-0096-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiangnan Chen
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Key Laboratory of Medical Genetics, Zhejiang, China
| | - Huanzheng Li
- Department of Genetics, Dingli Clinical Medical School, Wenzhou Medical University, Key Laboratory of Birth Defects, Wenzhou, Zhejiang 325000 China
| | - Yijian Mao
- Department of Genetics, Dingli Clinical Medical School, Wenzhou Medical University, Key Laboratory of Birth Defects, Wenzhou, Zhejiang 325000 China
| | - Xueqin Xu
- Department of Genetics, Dingli Clinical Medical School, Wenzhou Medical University, Key Laboratory of Birth Defects, Wenzhou, Zhejiang 325000 China
| | - Jiaojiao Lv
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Key Laboratory of Medical Genetics, Zhejiang, China
| | - Lili Zhou
- Department of Genetics, Dingli Clinical Medical School, Wenzhou Medical University, Key Laboratory of Birth Defects, Wenzhou, Zhejiang 325000 China
| | - Xiaoling Lin
- Department of Genetics, Dingli Clinical Medical School, Wenzhou Medical University, Key Laboratory of Birth Defects, Wenzhou, Zhejiang 325000 China
| | - Shaohua Tang
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Key Laboratory of Medical Genetics, Zhejiang, China ; Department of Genetics, Dingli Clinical Medical School, Wenzhou Medical University, Key Laboratory of Birth Defects, Wenzhou, Zhejiang 325000 China
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Hummon MR, Costello WJ. Cell lineage of flight muscle fibers in Drosophila: a fate map of the induced shibire phenotype in mosaics. Dev Genes Evol 1992; 201:88-94. [PMID: 28305897 DOI: 10.1007/bf00420419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/1991] [Accepted: 01/13/1992] [Indexed: 11/28/2022]
Abstract
A blastoderm fate map has been prepared for Drosophila, using mosaics of a temperature-sensitive mutation, shibire (shi). The mutation can cause abnormal flight muscle morphology, inducible only by a short heat pulse in early metamorphosis. Thus muscle lineage and development are unperturbed until the heat pulse in the early pupa. The developmental focus of the shi muscle phenotype maps to the ventral thorax at the expected site of thoracic mesoderm, and probably indicates the blastoderm progenitors of the adult flight muscle. The fate map provides greater detail than previously available for the dorsolongitudinal fibers (DLM) of flight muscle, showing wide separation of the fibers of flight muscle. DLM fibers a and b map close together, and far anterior to fibers e and f, which also map together. On a fate map, common developmental focus indicates a common blastoderm origin. Thus, the observed pattern for DLM fibers suggests that the blastoderm progenitors for each of these syncytial fiber pairs (a, b; e, f) include only one or two cells. It follows that there is usually a single genotype within each fiber pair (a, b; e, f), and that this genotype is directly reflected in the fiber phenotype. In a large number of cases, DLM fibers a and b differ in phenotype from other DLM fibers, in parallel with their other differences (e.g., timing of development in pupa, innervation, motor activity). The separation of fate map locations of the developmental focus for DLM fibers within mesoderm suggests that specific fibers of flight muscle may, in normal development, originate in all three thoracic mesodermal parasegments.
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Affiliation(s)
- Margaret Raper Hummon
- Department of Zoological and Biomedical Sciences/College of Osteopathic Medicine, Ohio University, 45701, Athens, OH, USA
| | - Walter J Costello
- Department of Zoological and Biomedical Sciences/College of Osteopathic Medicine, Ohio University, 45701, Athens, OH, USA
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