The lateral septum (LS) is involved in controlling anxiety, aggression, feeding, and other motivated behaviors. Lesion studies have also implicated the LS in various forms of caring behaviors. Recently, novel experimental tools have provided a more detailed insight into the function of the LS, including the specific role of distinct cell types and their neuronal connections in behavioral regulations, in which the LS participates. This article discusses the regulation of different types of maternal behavioral alterations using the distributions of established maternal hormones such as prolactin, estrogens, and the neuropeptide oxytocin. It also considers the distribution of neurons activated in mothers in response to pups and other maternal activities, as well as gene expressional alterations in the maternal LS. Finally, this paper proposes further research directions to keep up with the rapidly developing knowledge on maternal behavioral control in other maternal brain regions.
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http://dx.doi.org/10.1016/j.neubiorev.2024.105683 | DOI Listing |
Heliyon
January 2025
Department of Ultrasound Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, People's Republic of China.
Objectives: This study aimed to establish standard transesophageal echocardiographic (TEE) measurements of left ventricular (LV) morphology, function, and myocardial work parameters in healthy Beagle dogs using pressure-strain loops (PSL). Additionally, it sought to standardize optimal TEE imaging techniques and explore the potiential application of myocardial work analyis in veterinary medicine.
Methods: Thirty-seven healthy male Beagle dogs were anesthetized, intubated, and mechanically ventilated for TEE examinations.
Orbit
January 2025
Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, School of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil.
Ablepharon macrostomia syndrome is a rare congenital disorder caused by autosomal-dominant mutations. This condition is characterized by redundant skin, low-set ears, macrostomia, ambiguous genitalia, and underdevelopment of the both upper and lower eyelids. The shortening of the anterior lamella, septum and levator aponeurosis lead to a severe corneal exposure within the first hours of life.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.
Currently, the direct endonasal approach is widely used in endoscopic endonasal surgery (EES) for pituitary neuroendocrine tumor. However, a large posterior septal perforation is inevitable. We routinely utilize a modified para/transseptal approach using the combination of a Killian and a contralateral rescue flap incision (PTSA with K-R incision).
View Article and Find Full Text PDFBrain Struct Funct
January 2025
Department of Physiology and Neurobiology, Laboratory of Molecular and Systems Neurobiology, Eötvös Loránd University, Budapest, Hungary.
The lateral septum (LS) demonstrates activation in response to pup exposure in mothers, and its lesions eliminate maternal behaviors suggesting it is part of the maternal brain circuitry. This study shows that the density of pup-activated neurons in the ventral subdivision of the LS (LSv) is nearly equivalent to that in the medial preoptic area (MPOA), the major regulatory site of maternal behavior in rat dams. However, when somatosensory inputs including suckling were not allowed, pup-activation was markedly reduced in the LSv.
View Article and Find Full Text PDFOtolaryngol Clin North Am
January 2025
Department of Otolaryngology-Head and Neck Surgery, Division of Facial Plastic and Reconstructive Surgery, Henry Ford Hospital, 2799 West Grand Boulevard K-8, Detroit, MI 48202, USA; Department of Surgery, Michigan State University, 4660 South Hagadorn Road, Suite #620, East Lansing, MI 48823, USA; Wayne State University School of Medicine, 540 East Canfield Street, Detroit, MI 48201, USA.
The external nasal valve is the anatomic structure formed by the caudal septum, alar rim, medial crura of the lower lateral cartilage, and nasal sill at the level of the nasal vestibule. Evaluation of external nasal valve dysfunction is dependent upon a thorough history and physical examination. Symptoms and quality of life impact are the main drivers for patients to seek out clinical evaluation.
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