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https://www.readbyqxmd.com/read/28910916/-primary-tracheal-malignant-glomus-tumor-with-lung-metastasis-diagnosed-by-pathological-analysis-a-case-report-and-literature-review
#1
B Huang, F G Chen, J Zhuang, W C Zheng, W Y Zhu, Q C Zhang, S H Wang, C M Guo, C M Xie
Objective: To study the clinical manifestations, pathological features, diagnosis, differential diagnosis, treatment and prognosis of primary tracheobronchial or pulmonary malignant glomus tumor (MGT). Methods: A case of primary tracheal MGT with lung metastasis diagnosed by pathological analysis admitted to Affiliated Shantou Hospital of Sun Yat-sen University in May. 2015 was analyzed, and the related literatures were reviewed. We searched databases including PubMed, Embase, Ovid, Cochrane, Wanfang and Chinese National Knowledge infrastructure (CNKI), using the keyword "tracheal or bronchial or pulmonary malignant glomus tumor" from Jan...
September 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28888573/an-extradigital-glomus-tumor-of-the-median-antebrachial-vein
#2
Anthony R Andreoni, Jessica Waughtel, Jonathan Cook, Pablo A Bejarano, David Friedman
Glomus tumors are benign vascular neoplasms that arise from specialized dermal arteriovenous anastomoses called glomus bodies. These tumors are most often found in the digital pulp and subungual region of the fingertips; however, a review of the literature suggests that extradigital glomus tumors may occur more often than is generally recognized. Although most extradigital glomus tumors arise within subcutaneous tissues, glomus tumors have occasionally been found within bones, nerves, and blood vessels. An intravascular glomus tumor of the forearm is a very rare occurrence and only a few cases have been reported in the literature...
September 6, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28887696/lessons-from-single-cell-transcriptome-analysis-of-oxygen-sensing-cells
#3
REVIEW
Ting Zhou, Hiroaki Matsunami
The advent of single-cell RNA-sequencing (RNA-Seq) technology has enabled transcriptome profiling of individual cells. Comprehensive gene expression analysis at the single-cell level has proven to be effective in characterizing the most fundamental aspects of cellular function and identity. This unbiased approach is revolutionary for small and/or heterogeneous tissues like oxygen-sensing cells in identifying key molecules. Here, we review the major methods of current single-cell RNA-Seq technology. We discuss how this technology has advanced the understanding of oxygen-sensing glomus cells in the carotid body and helped uncover novel oxygen-sensing cells and mechanisms in the mice olfactory system...
September 8, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28878494/responses-of-wheat-plants-to-interactions-of-24-epibrassinolide-and-glomus-mosseae-in-saline-condition
#4
Cobra Tofighi, Ramazan Ali Khavari-Nejad, Farzaneh Najafi, Khadijeh Razavi, Farhad Rejali
This study was designed to investigate the possible effects of 24-Epibrassinolide (BR), arbuscular mycorrhizal (AM) fungus, Glomus mosseae, singularly and collectively under salt stress in wheat (Triticum aestivum L.) plants. After foliar spraying of mycorrhizal and non-mycorrhizal plants by 5 µM epibrassinolide (24-Epi), they were treated with 0 and 150 mM NaCl for 2 weeks and then harvested. The results showed interactions of G. mosseae and 24-Epi could alleviate the adverse effects of salinity by improving relative water content (RWC) of leaves (62%), relative growth rate (40...
July 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28877207/arbuscular-mycorrhizal-symbiosis-mitigates-the-negative-effects-of-salinity-on-durum-wheat
#5
Veronica Fileccia, Paolo Ruisi, Rosolino Ingraffia, Dario Giambalvo, Alfonso Salvatore Frenda, Federico Martinelli
Arbuscular mycorrhizal (AM) symbiosis is generally considered to be effective in ameliorating the plant tolerance to salt stress. Unfortunately, the comprehension of the mechanisms implicated in salinity stress alleviation by AM symbiosis is far from being complete. Thus, an experiment was performed by growing durum wheat (Triticum durum Desf.) plants under salt-stress conditions to evaluate the influence of AM symbiosis on both the plant growth and the regulation of a number of genes related to salt stress and nutrient uptake...
2017: PloS One
https://www.readbyqxmd.com/read/28875382/-tumors-of-the-inner-ear-and-adjacent-structures
#6
REVIEW
J Schittenhelm
Tumors of the inner ear and adjacent structures often present with hearing loss, tinnitus and vertigo due to compression of the traversing cranial nerves. More than 90% of the tumors of the inner ear with or without expansion into the cerebellopontine angle are histologically diagnosed as vestibular schwannomas. Less common tumorous lesions include ectopic meningiomas located in the petrous bone, glomus tympanicum paragangliomas or endolymphatic sac tumors (ELST) originating in the vestibular recess. Most tumors are sporadic, but hereditary disorders have to be considered...
September 5, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28867901/primary-intracranial-extraskeletal-mesenchymal-chondrosarcoma-clinical-mimicry-as-glomus-jugulare
#7
Rajesh Chhabra, Manjul Tripathi, Devi Prasad Patra, Narendra Kumar, Bishan Radotra, Kanchan Kumar Mukherjee
BACKGROUND: Extraskeletal mesenchymal chondrosarcoma (ESMCS) is an unusual pathologic variant of chondrosarcoma. There are no specific clinicoradiographic parameters to distinguish it from other intracranial pathologies. The diagnosis can be established only on the basis of histopathology, which may pose significant challenges in certain unusual locations. PURPOSE: In this case, we discuss the pitfalls in diagnosis, management, and major characteristics of ESMCS with a review of current literature...
July 2017: Annals of Neurosciences
https://www.readbyqxmd.com/read/28852301/glomus-tumour-with-intramedullary-bone-cyst-a-rare-presentation
#8
Abhijeet Kumar Jha, Rajesh Sinha, Anil Kumar, Smita Prasad
No abstract text is available yet for this article.
April 2017: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/28851593/role-of-cystathionine-%C3%AE-lyase-in-hypoxia-induced-changes-in-task-activity-intracellular-ca-2-and-ventilation-in-mice
#9
Jiaju Wang, James O Hogan, Rui Wang, Carl White, Donghee Kim
Cystathionine-γ-lyase (CSE) is a multifunctional enzyme, and hydrogen sulfide (H2S) is one of its products. CSE and H2S have recently been proposed to be critical signaling molecules in hypoxia-induced excitation of carotid body (CB) glomus cells and the chemosensory response. Because the role of H2S in arterial chemoreception is still debated, we further examined the role of CSE by studying the effects of hypoxia on TASK K(+) channel activity, cell depolarization, [Ca(2+)]i and ventilation using CSE(+/+) and CSE(-/-) mice...
August 26, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28834810/braf-v600e-mutations-occur-in-a-subset-of-glomus-tumors-and-are-associated-with-malignant-histologic-characteristics
#10
Nooshin Karamzadeh Dashti, Armita Bahrami, Seung J Lee, Sarah M Jenkins, Fausto J Rodriguez, Andrew L Folpe, Jennifer M Boland
Glomus tumors are rare mesenchymal neoplasms with a phenotype akin to the modified smooth muscle cells of the glomus body. Most are benign, but rare examples show malignant histologic characteristics and aggressive behavior. We recently encountered a malignant glomus tumor with BRAF V600E mutation. We sought to study a large cohort for this mutation, with particular attention to associated malignant histologic characteristics. Tumors were classified based on WHO criteria as benign, uncertain malignant potential (glomus tumors of uncertain malignant potential-GT-UMP), or malignant...
August 22, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28832727/occurrence-of-arbuscular-mycorrhizal-fungi-on-king-george-island-south-shetland-islands-antarctica
#11
Marisângela V Barbosa, Elismara A Pereira, Juliano C Cury, Marco A C Carneiro
Arbuscular mycorrhizal fungi make up an important ecological niche in ecosystems, and knowledge of their diversity in extreme environments is still incipient. The objective of this work was to evaluate the density and diversity of arbuscular mycorrhizal fungi in the soil of King George Island in the South Shetland Islands archipelago, Antarctica. For that, soil and roots of Deschampsia antarctica were collected at the brazilian research station in Antarctica. The spore density, species diversity and mycorrhizal colonization in the roots were evaluated...
August 17, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28819004/acute-oxygen-sensing-by-the-carotid-body-from-mitochondria-to-plasma-membrane
#12
Andy J Chang
Maintaining oxygen homeostasis is crucial to the survival of animals. Mammals respond acutely to changes in blood oxygen levels by modulating cardiopulmonary function. The major sensor of blood oxygen that regulates breathing is the carotid body (CB), a small chemosensory organ located at the carotid bifurcation. When arterial blood oxygen levels drop in hypoxia, neuroendocrine cells in the CB called glomus cells are activated to signal to afferent nerves that project to the brainstem. The mechanism by which hypoxia stimulates CB sensory activity has been the subject of many studies over the last 90 years...
August 17, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28815474/influence-of-bio-fertilizer-containing-beneficial-fungi-and-rhizospheric-bacteria-on-health-promoting-compounds-and-antioxidant-activity-of-spinacia-oleracea-l
#13
Muhammad Khalid, Danial Hassani, Muhammad Bilal, Fayaz Asad, Danfeng Huang
BACKGROUND: This study evaluates the influences of bio fertilizers containing mycorrhizal fungi (Glomus fasciculatum, Glomus mosseae) individually or in combination with N-fixer (Azotobacter chroococcum), K solubilizer (Bacillus mucilaginous) and P solubilizer (Bacillus megaterium) on soil fertility and phytochemical levels of spinach. RESULTS: Root colonization by mycorrhizal fungi was increased in the presence of bacterial inoculation in comparison to individual inoculation treatments...
August 16, 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28806247/glomus-tumor-of-the-neck-detected-with-99mtc-edda-hynic-toc
#14
Neva Girotto, Tatjana Bogović-Crnčić, Svjetlana Grbac-Ivanković, Petra Valković-Zujić
A 54-year-old woman was referred to thyroid evaluation because of a lump on the left side of the neck. Ultrasound exam did not show any thyroid abnormality, but highly perfused nodule at the left common carotid artery bifurcation was found. Because of the specific location, somatostatin receptor scintigraphy with Tc EDDA HYNIC-TOC was performed, starting with perfusion images and followed with SPECT/CT imaging at 2 and 4 hours. Well-perfused nodule with intensive accumulation and no other visible pathology in the body raised suspicion of a glomus tumor, consistent with MR exam performed later...
October 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28734442/nonintubated-spontaneous-respiration-anesthesia-for-tracheal-glomus-tumor
#15
Jun Huang, Yuan Qiu, Lei Chen, Hui Liu, Qinglong Dong, Lixia Liang, Jiaxi He, Jianxing He, Hanzhang Chen
Previous tracheal surgeries were performed under tracheal and cross-field intubation. However, the intubation would lead to bleeding if the tumors were large or hemorrhagic. Moreover, the tracheal intubation might interfere the surgical vision and anastomosis during the reconstruction process. Therefore, we performed a tracheal tumor resection and reconstruction via nonintubated spontaneous anesthesia. We describe the feasibility and safety of tracheal surgeries via such anesthesia.
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28725395/reduced-aboveground-tree-growth-associated-with-higher-arbuscular-mycorrhizal-fungal-diversity-in-tropical-forest-restoration
#16
Ellen K Holste, Karen D Holl, Rakan A Zahawi, Richard K Kobe
Establishing diverse mycorrhizal fungal communities is considered important for forest recovery, yet mycorrhizae may have complex effects on tree growth depending on the composition of fungal species present. In an effort to understand the role of mycorrhizal fungi community in forest restoration in southern Costa Rica, we sampled the arbuscular mycorrhizal fungal (AMF) community across eight sites that were planted with the same species (Inga edulis, Erythrina poeppigiana, Terminalia amazonia, and Vochysia guatemalensis) but varied twofold to fourfold in overall tree growth rates...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28723308/percutaneous-trans-tracheal-endoscopic-approach-a-novel-technique-for-the-excision-of-benign-lesions-of-thoracic-trachea
#17
Suresh C Sharma, K Devaraja, Arvind Kairo, Rakesh Kumar
INTRODUCTION: Currently, neoplasms of the trachea and lower airway demand open transcervical approach with or without thoracotomy. We describe here a novel, minimally invasive approach for an intraluminal lesion of the thoracic trachea, called percutaneous trans-tracheal endoscopic approach (PTEA). Apart from obvious advantages over potentially morbid open procedures, this technique has certain peculiar benefits over rigid or flexible bronchoscopic approach. MATERIALS AND METHODS: A 43-year-old male patient had glomus tumor of thoracic trachea...
July 19, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28718507/gene-expression-analyses-reveal-metabolic-specifications-in-acute-o2-sensing-chemoreceptor-cells
#18
Lin Gao, Victoria Bonilla-Henao, Paula García-Flores, Ignacio Arias-Mayenco, Patricia Ortega-Sáenz, José López-Barneo
KEY POINTS: Glomus cells in the carotid body (CB) and chromaffin cells in the adrenal medulla (AM) are essential for reflex cardiorespiratory adaptation to hypoxia. However, the mechanisms whereby these cells detect changes in O2 tension are poorly understood. The metabolic properties of acute O2 -sensing cells have been investigated by comparing the transcriptomes of CB and AM cells, which are O2 -sensitive, with superior cervical ganglion neurons, which are practically O2 -insensitive...
September 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28716413/belowground-microbes-mitigate-plant-plant-competition
#19
Márcia Bacelar Fonseca, Teresa Dias, Maria Manuela Carolino, Marcel Giovanni Costa França, Cristina Cruz
Dimorphandra wilsonii, a Cerrado endemic Fabaceae tree, is threatened by land-use changes. The few remaining individuals occur in areas dominated by alien grasses like Urochloa decumbens. We tested the impact of nitrogen (N) availability and symbionts' presence on mitigating the effects of competition from U. decumbens. Dimorphandra wilsonii seedlings were 50-week pot-cultivated under limiting (3mM) or non-limiting (10mM) N, with or without U. decumbens, and inoculated or not with a N-fixer (Bradyrhizobium sp...
September 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28698815/glomangioma-of-the-kidney-a-rare-case-of-glomus-tumor-and-review-of-the-literature
#20
Ammar Almaghrabi, Nizar Almaghrabi, Haneen Al-Maghrabi
BACKGROUND: Glomus tumors are rare mesenchymal tumors originating from glomus bodies in the skin. Glomus tumors of the kidney are rare tumors and only a few cases have been reported in the medical literature. An extensive search revealed a very limited number of primary renal glomus tumors. Although most of these cases were benign in nature, including a case with uncertain diagnosis of malignant potential, two were malignant. CASE REPORT: We present a unique case of a 57-year-old male patient with an incidentally discovered 2 cm left renal mass...
2017: Case Reports in Pathology
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