Eight cases of lateral ventral hernia, or the so-called hernia of the line of Spiegel, included 2 serious cases complicated by a pyostercoral phlegmon. The principal anatomic, clinical and therapeutic features of these hernias are discussed, with emphasis of the probable underestimation of this affection and the value of parietal ultrasound imaging for its early diagnosis in patients with abdominal pain unexplained by a deep visceral lesion.
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J Neurosci
January 2025
Department of Biomedical Engineering, Michigan Technological University, 1400 Townsend Dr. Houghton, MI 49931.
Deep brain stimulation (DBS) effectively treats motor symptoms of advanced Parkinson's disease (PD), with the globus pallidus interna (GPi) commonly targeted. However, its therapeutic mechanisms remain unclear. We employed optogenetic stimulation in the entopeduncular nucleus (EP), the rat homologue of GPi, in a unilateral 6-OHDA lesioned female Sprague Dawley rat model of PD.
View Article and Find Full Text PDFProc Biol Sci
January 2025
Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA.
Eagle rays, cownose rays and manta rays (order Myliobatiformes) have a slender tail that can be longer than the animal's body length, but its function and structure are unknown. Using histology, immunohistochemistry and three-dimensional imaging with micro-computed tomography scans, we describe the anatomy and function of the tail in , the cownose ray. The tail is an extension of the vertebral column with unique morphological specializations.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Department of Anesthesiology and Perioperative Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, 710032, China.
Feeding behavior changes induced by opioid addiction significantly contribute to the worsening opioid crisis. Activation of the reward system has shown to provoke binge eating disorder in individuals with opioid use disorder, whereas prolonged opioid exposure leads to weight loss. Understanding the mechanisms underlying these phenomena is essential for addressing this pressing societal issue.
View Article and Find Full Text PDFBiol Open
January 2025
Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PT, UK.
In the developing mouse ventral spinal cord, HES5, a transcription factor downstream of Notch signalling, is expressed as evenly spaced clusters of high HES5-expressing neural progenitor cells along the dorsoventral axis. While Notch signalling requires direct membrane contact for its activation, we have previously shown mathematically that contact needs to extend beyond neighbouring cells for the HES5 pattern to emerge. However, the presence of cellular structures that could enable such long-distance signalling was unclear.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Physical Therapy, Faculty of Rehabilitation, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, 950-3198, Japan.
Since clinical features of chronic muscle pain originating from the low back and limbs are different (higher prevalence and broader/duller sensation of low back muscle pain than limb muscle pain), spinal and/or supraspinal projection of nociceptive information could differ between the two muscles. We tested this hypothesis using c-Fos immunohistochemistry combined with retrograde-labeling of dorsal horn (DH) neurons projecting to ventrolateral periaqueductal grey (vlPAG) or ventral posterolateral nucleus of the thalamus (VPL) by fluorogold (FG) injections into the vlPAG or VPL. C-Fos expression in the DH was induced by injecting 5% formalin into the multifidus (MF, low back) or gastrocnemius-soleus (GS, limb) muscle.
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