keyword
https://read.qxmd.com/read/38647603/epidural-angioleiomyoma-an-extraordinary-cause-of-compressive-myelopathy-mri-findings-with-histopathological-correlation
#1
JOURNAL ARTICLE
Carlos Jiménez Mascuñán, Alberto Martínez Martínez, Rosa Ríos Pelegrina, Antonio Jesús Láinez Ramos-Bossini
BACKGROUND: Angioleiomyomas are benign mesenchymal tumors usually located in the limbs, with anecdotal reports in the spine. We present an atypical case of an epidural spine angioleiomyoma presenting with compressive myelopathy symptoms. The diagnosis was suggested based on MRI findings, and subsequently confirmed histopathologically. RESULTS: This is the first known occurrence of pure spinal epidural angioleiomyoma as a source of compressive myelopathy. The imaging presentation, especially the 'dark reticular sign' on MRI, was crucial in suggesting the diagnosis despite the atypical location CONCLUSION: This report serves to raise awareness among clinicians and radiologists about including angioleiomyoma in differential diagnoses for spinal epidural lesions with indicative MRI features...
April 22, 2024: European Spine Journal
https://read.qxmd.com/read/38644095/visualization-of-intradermal-blood-vessel-structures-by-dual-wavelength-photoacoustic-microscopy-and-characterization-of-three-dimensional-construction-of-livedo-racemosa-in-cutaneous-polyarteritis-nodosa
#2
JOURNAL ARTICLE
Kazuyo Sujino, Keiji Tanese, Yasuko Saito, Junko Kuramoto, Hideaki Iwazaki, Taiichiro Ida, Sadakazu Aiso, Nobuaki Imanishi, Hiroki Kajita, Keitaro Fukuda, Masayuki Amagai, Akiko Tanikawa
BACKGROUND: Photoacoustic microscopy is expected to have clinical applications as a noninvasive and three-dimensional (3D) method of observing intradermal structures. OBJECTIVE: Investigate the applicability of a photoacoustic microscope equipped with two types of pulsed lasers that can simultaneously recognize hemoglobin and melanin. METHODS: 16 skin lesions including erythema, pigmented lesions, vitiligo and purpura, were analyzed to visualize 3D structure of melanin granule distribution and dermal blood vessels...
March 26, 2024: Journal of Dermatological Science
https://read.qxmd.com/read/38642350/histological-and-immunohistochemical-characteristic-of-the-gingival-stroma-in-the-portion-of-the-third-molars-in-children-of-various-age
#3
JOURNAL ARTICLE
Oksana I Godovanets, Igor S Davydenko, Taras I Muryniuk, Larysa Ya Fedoniuk
OBJECTIVE: Aim: To evaluate the state of the gingival stromal elements in the portion of the third molars requiring extraction of these teeth due to orthodontic indications considering the stage of tooth germ formation. PATIENTS AND METHODS: Materials and Methods: The surgery to extract third molars due to orthodontic indications was performed on 95 children aged 11 to 18 years. The three groups of observation were isolated according to clinical-radiological signs: І (n=30) - children aged 11-13 years; ІІ (n=35) - children aged 13-16 years, and ІІІ (n=30) - children aged 16-18 years...
2024: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://read.qxmd.com/read/38641006/rediscovering-amd-with-swept-source-oct-imaging-the-2022-charles-l-schepens-md-lecture
#4
JOURNAL ARTICLE
Philip J Rosenfeld, Mengxi Shen, Omer Trivizki, Jeremy Liu, Gissel Herrera, Farhan E Hiya, Jianqing Li, Alessandro Berni, Liang Wang, Omar S El-Mulki, Yuxuan Cheng, Jie Lu, Qinqin Zhang, Robert C O'Brien, Giovanni Gregori, Ruikang K Wang
PURPOSE: Swept-source optical coherence tomography angiography (SS-OCTA) scans of eyes with age-related macular degeneration (AMD) were used to replace color, autofluorescence, infrared reflectance, and dye-based fundus angiographic imaging for the diagnosis and staging of AMD. Through the use of different algorithms with the SS-OCTA scans, both structural and angiographic information can be viewed and assessed using both cross-sectional and en face imaging strategies. DESIGN: Presented at the 2022 Charles L...
April 17, 2024: Ophthalmology Retina
https://read.qxmd.com/read/38637099/inflammatory-breast-cancer-an-overview-about-the-histo-pathological-aspect-and-diagnosis
#5
JOURNAL ARTICLE
Ghada Sahraoui, Nabil Rahoui, Maha Driss, Karima Mrad
Inflammatory Breast Cancer (IBC) is a rare and aggressive form of locally advanced breast cancer, classified as stage T4d according to the tumor-node-metastasis staging criteria. This subtype of breast cancer is known for its rapid progression and significantly lower survival rates compared to other forms of breast cancer. Despite its distinctive clinical features outlined by the World Health Organization, the histopathological characteristics of IBC remain not fully elucidated, presenting challenges in its diagnosis and treatment...
2024: International Review of Cell and Molecular Biology
https://read.qxmd.com/read/38634872/genomic-evidence-for-the-complex-evolutionary-history-of-macaques-genus-macaca
#6
JOURNAL ARTICLE
Zhenxin Fan, Rusong Zhang, Anbo Zhou, Jody Hey, Yang Song, Naoki Osada, Yuzuru Hamada, Bisong Yue, Jinchuan Xing, Jing Li
The genus Macaca is widely distributed, occupies a variety of habitats, shows diverse phenotypic characteristics, and is one of the best-studied genera of nonhuman primates. Here, we reported five re-sequencing Macaca genomes, including one M. cyclopis, one M. fuscata, one M. thibetana, one M. silenus, and one M. sylvanus. Together with published genomes of other macaque species, we combined 20 genome sequences of 10 macaque species to investigate the gene introgression and genetic differences among the species...
April 18, 2024: Journal of Molecular Evolution
https://read.qxmd.com/read/38634778/discovery-of-two-predictable-3-18-connected-topologies-based-on-wells-dawson-type-cages-for-the-design-of-porous-metal-phosphonocarboxylate-frameworks
#7
JOURNAL ARTICLE
Wenyan Dan, Zhenxia Chen, Yun Ling, Yu Jia, Yongtai Yang, Xiaofeng Liu, Mingli Deng
Highly connected molecular building blocks (MBBs) have been demonstrated to play a crucial role in reticular chemistry, particularly in predicting the topologies of metal-organic frameworks. Metal phosphonate clusters exhibit considerable advantages in constructing high-connectivity MBBs, owing to the multiple coordination modes offered by phosphonic ligands. Herein, four metal (M = CoII , MnII ) phosphonocarboxylate frameworks (CoPCF-1,2 and MnPCF-1,2) were successfully prepared under solvothermal conditions by utilizing the phosphonocarboxylic ligand, 4'-phosphonobiphenyl-3,5-dicarboxylic acid (H4 pbpdc), and their structural characterization was performed using single-crystal X-ray diffraction (SCXRD)...
April 18, 2024: Dalton Transactions: An International Journal of Inorganic Chemistry
https://read.qxmd.com/read/38634511/changes-in-ovarian-tissue-structure-and-distribution-of-oestrogen-receptors-in-huanghuai-goats-at-different-ages
#8
JOURNAL ARTICLE
Wenjing Zhang, Laixiang Wang, Bo Hu, Mengmeng Jin, Jinxing Zhou
To observe developmental changes in the ovarian tissue structure and distribution characteristics of oestrogen receptors (ERs) in the ovaries of Huanghuai goats at different ages, we selected healthy Huanghuai goats ewes and divided them into five groups (i.e. 3-, 30-, 60-, 90- and 120-day-old groups), with 10 animals in each group. The serum was separated after blood collection through the jugular vein, and the contents of oestrogen (E) and progesterone (P) in the serum of Huanghuai goats at each age were determined...
May 2024: Anatomia, Histologia, Embryologia
https://read.qxmd.com/read/38633977/acute-exacerbation-of-idiopathic-pulmonary-fibrosis-with-concurrent-cardiac-amyloidosis-a-technetium-pyrophosphate-study
#9
JOURNAL ARTICLE
Toyoshi Yanagihara, Hikaru Hatashima, Hiroaki Ogata, Yuki Moriuchi, Akiko Ishimatsu, Junji Otsuka, Kazuhito Taguchi, Atushi Moriwaki, Makoto Yoshida
Amyloidosis presents a diagnostic challenge, particularly when concomitant with severe conditions like acute exacerbations of idiopathic pulmonary fibrosis (IPF). In this report, we detail the case of a 73-year-old patient with acute exacerbation of IPF and simultaneous emergence of cardiac amyloidosis. The patient's clinical journey began with persistent exertional dyspnea, progressing to hypoxemia on admission. Chest CT scans showed extensive ground-glass opacities, consolidations, and pre-existing honeycombing-like cysts and reticular shadows, accompanied by a right-sided pleural effusion...
March 2024: Curēus
https://read.qxmd.com/read/38633448/reticular-bullous-epithelial-corneal-edema-after-netarsudil-use-for-elevated-intraocular-pressure-with-concurrent-fuchs-endothelial-corneal-dystrophy-a-case-report
#10
Kathryn S Park, Alexander C Lieu, Michael J Ang, Natalie A Afshari
INTRODUCTION: We describe a case of reticular bullous corneal epithelial edema associated with the use of netarsudil ophthalmic solution (0.02%) for elevated intraocular pressure. CASE PRESENTATION: A 74-year-old man with a complex ocular medical history, including Fuchs dystrophy and primary open-angle glaucoma, developed progressively worsening loss of vision 3 weeks following the initiation of topical netarsudil for increased intraocular pressure. Visual acuity in the left eye was counting fingers at 3 feet and intraocular pressure in the left eye was 7 mm Hg...
2024: Case Reports in Ophthalmology
https://read.qxmd.com/read/38631691/hierarchically-ordered-pore-engineering-of-metal-organic-framework-based-materials-for-electrocatalysis
#11
REVIEW
Xiaofang Li, Xin-Tao Wu, Qiang Xu, Qi-Long Zhu
Ordered pore engineering that embeds uniform pores with periodic alignment in electrocatalysts opens up a new avenue for achieving further performance promotion. Hierarchically ordered porous metal-organic frameworks (HOP-MOFs) possessing multi-level pores with ordered distribution are the promising precursors for the exploration of ordered porous electrocatalysts, while the scalable acquisition of HOP-MOFs with editable components and adjustable pore size regimes is critical. In this review, we presented recent progress on hierarchically ordered pore engineering of MOF-based materials for enhanced electrocatalysis...
April 17, 2024: Advanced Materials
https://read.qxmd.com/read/38629053/characterization-of-the-neural-circuitry-of-the-auditory-thalamic-reticular-nucleus-and-its-potential-role-in-salicylate-induced-tinnitus
#12
JOURNAL ARTICLE
Qian Dai, Tong Qu, Guoming Shen, Haitao Wang
INTRODUCTION: Subjective tinnitus, the perception of sound without an external acoustic source, is often subsequent to noise-induced hearing loss or ototoxic medications. The condition is believed to result from neuroplastic alterations in the auditory centers, characterized by heightened spontaneous neural activities and increased synchrony due to an imbalance between excitation and inhibition. However, the role of the thalamic reticular nucleus (TRN), a structure composed exclusively of GABAergic neurons involved in thalamocortical oscillations, in the pathogenesis of tinnitus remains largely unexplored...
2024: Frontiers in Neuroscience
https://read.qxmd.com/read/38628416/bilateral-horizontal-gaze-palsy-as-an-initial-presentation-of-a-clinically-isolated-syndrome-a-case-report
#13
Ghadah Alnosair, Khalid A Alanazi, Fatima I Alhumaid, Bayan S Alshuhayb
Multiple sclerosis (MS) is the most common demyelinating disease affecting the central nervous system. It has a wide range of manifestations and commonly affects the visual system. Many patients with MS report decreased vision, diplopia, nystagmus, and abnormal ocular motility. Nevertheless, bilateral horizontal gaze palsies are exceptionally rarely seen. We present the case of a 24-year-old female who came to our pediatric ophthalmology clinic complaining of bilateral horizontal gaze palsy, photophobia, and eye pain for 2 days...
2024: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://read.qxmd.com/read/38626388/modelling-structural-elements-and-functional-responses-to-lymphatic-delivered-cues-in-a-murine-lymph-node-on-a-chip
#14
JOURNAL ARTICLE
Corrado Mazzaglia, Hafsa Munir, Iek M Le, Magda Gerigk, Yan Yan Shery Huang, Jacqueline D Shields
Lymph nodes (LNs) are organs of the immune system, critical for maintenance of homeostasis and initiation of immune responses, yet there are few models that accurately recapitulate LN functions in vitro. To tackle this issue, an engineered murine LN (eLN) was developed, replicating key cellular components of the mouse LN; incorporating primary murine lymphocytes, fibroblastic reticular cells (FRCs), and lymphatic endothelial cells (LECs). T and B cells compartments are incorporated within the eLN that mimic LN cortex and paracortex architectures...
April 16, 2024: Advanced Healthcare Materials
https://read.qxmd.com/read/38619506/unprecedented-poss-linked-3d-covalent-organic-frameworks-with-scu-or-sqc-topology-regulated-by-porphyrin-center-for-photocatalytic-co2-reduction
#15
JOURNAL ARTICLE
Ying Gao, Senzhi Li, Lei Gong, Jing Li, Dongdong Qi, Liu Naifang, Yongzhong Bian, Jianzhuang Jiang
The synthesis and characterization of porphyrin center regulated three-dimensional covalent organic frameworks with 2-fold interpenetrated scu or sqc topology have been investigated. These COFs exhibit unique structural features and properties, making them promising candidates for photocatalytic applications in CO2 reduction and artemisinin synthesis. The porphyrin center serves as an anchor for metal ions, allowing precise control over structures and functions of the frameworks. Furthermore, the metal coordination within the framework imparts desirable catalytic properties, enabling their potential use in photocatalytic reactions...
April 15, 2024: Angewandte Chemie
https://read.qxmd.com/read/38615924/deciphering-the-role-of-brainstem-glycinergic-neurons-during-startle-and-prepulse-inhibition
#16
JOURNAL ARTICLE
Wanyun Huang, Jose C Cano, Karine Fénelon
Prepulse inhibition (PPI) of the auditory startle response, a key measure of sensorimotor gating, diminishes with age and is impaired in various neurological conditions. While PPI deficits are often associated with cognitive impairments, their reversal is routinely used in experimental systems for antipsychotic drug screening. Yet, the cellular and circuit-level mechanisms of PPI remain unclear, even under non-pathological conditions. We recently showed that brainstem neurons located in the caudal pontine reticular nucleus (PnC) expressing the glycine transporter type 2 (GlyT2± ) receive inputs from the central nucleus of the amygdala (CeA) and contribute to PPI but via an uncharted pathway...
April 12, 2024: Brain Research
https://read.qxmd.com/read/38614796/chest-ct-features-and-functional-correlates-of-covid-19-at-3-months-and-12-months-follow-up
#17
JOURNAL ARTICLE
Kartik Kumar, Ratnaprashanthika Ratnakumar, Simon M Collin, Luis C Berrocal-Almanza, Piera Ricci, Mustafa Al-Zubaidy, Robina K Coker, Meg Coleman, Sarah L Elkin, Patrick Mallia, Jamilah Meghji, Clare Ross, Georgina K Russell, Katie Ward, Melissa Wickremasinghe, Sarah Sheard, Susan J Copley, Onn Min Kon
Long-term pulmonary sequelae of Coronavirus 2019 (COVID-19) remain unclear. Thus, we aimed to establish post-COVID-19 temporal changes in chest computed tomography (CT) features of pulmonary fibrosis and to investigate associations with respiratory symptoms and physiological parameters at 3 and 12 months' follow-up. Adult patients who attended our initial COVID-19 follow-up service and developed chest CT features of interstitial lung disease, in addition to cases identified using British Society of Thoracic Imaging codes, were evaluated retrospectively...
September 2023: Clinical Medicine: Journal of the Royal College of Physicians of London
https://read.qxmd.com/read/38613684/recent-progress-on-charge-transfer-engineering-in-reticular-framework-for-efficient-electrochemiluminescence
#18
REVIEW
Xinzhou Huang, Qian Sun, Jinjin Zhao, Guoqiu Wu, Yuanjian Zhang, Yanfei Shen
Electrochemiluminescence (ECL) is a luminescence production technique triggered by electrochemistry, which has emerged as a powerful analytical technique in bioanalysis and clinical diagnosis. During ECL, charge transfer (CT) is an important process between electrochemical excitation and luminescent emission, and dramatically affects the efficiency of exciton generation, playing a pivotal role in the light-emitting properties of nanomaterials. Reticular framework materials with intramolecular/intermolecular interactions offer a promising platform for regulating CT pathways and enhancing luminescence efficiency...
April 13, 2024: Analytical and Bioanalytical Chemistry
https://read.qxmd.com/read/38613211/microanatomy-of-the-human-tunnel-of-corti-structures-and-cochlear-partition-tonotopic-variations-and-transcellular-signaling
#19
JOURNAL ARTICLE
Dina Giese, Hao Li, Wei Liu, Karin Staxäng, Monika Hodik, Hanif M Ladak, Sumit Agrawal, Anneliese Schrott-Fischer, Rudolf Glueckert, Helge Rask-Andersen
Auditory sensitivity and frequency resolution depend on the optimal transfer of sound-induced vibrations from the basilar membrane (BM) to the inner hair cells (IHCs), the principal auditory receptors. There remains a paucity of information on how this is accomplished along the frequency range in the human cochlea. Most of the current knowledge is derived either from animal experiments or human tissue processed after death, offering limited structural preservation and optical resolution. In our study, we analyzed the cytoarchitecture of the human cochlear partition at different frequency locations using high-resolution microscopy of uniquely preserved normal human tissue...
April 13, 2024: Journal of Anatomy
https://read.qxmd.com/read/38612880/the-importance-of-intra-islet-communication-in-the-function-and-plasticity-of-the-islets-of-langerhans-during-health-and-diabetes
#20
REVIEW
Thomas G Hill, David J Hill
Islets of Langerhans are anatomically dispersed within the pancreas and exhibit regulatory coordination between islets in response to nutritional and inflammatory stimuli. However, within individual islets, there is also multi-faceted coordination of function between individual beta-cells, and between beta-cells and other endocrine and vascular cell types. This is mediated partly through circulatory feedback of the major secreted hormones, insulin and glucagon, but also by autocrine and paracrine actions within the islet by a range of other secreted products, including somatostatin, urocortin 3, serotonin, glucagon-like peptide-1, acetylcholine, and ghrelin...
April 6, 2024: International Journal of Molecular Sciences
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