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https://www.readbyqxmd.com/read/28424944/indirect-interactions-between-arbuscular-mycorrhizal-fungi-and-spodoptera-exigua-alter-photosynthesis-and-plant-endogenous-hormones
#1
Lei He, Changyou Li, Runjin Liu
Peanut (Arachis hypogaea Linn. cv: Luhua 11) and tomato (Lycopersicon esculentum Mill. cv: Zhongshu 4) were inoculated with arbuscular mycorrhizal fungi (AMF) Funneliformis mosseae BEG167 (Fm), Rhizophagus intraradices BEG141 (Ri), and Glomus versiforme Berch (Gv), and/or Spodoptera exigua (S. exigua) under greenhouse conditions. Results indicated that feeding by S. exigua had little influence on colonization of peanut plants by AMF, but improved colonization of tomato by Fm and Gv. Feeding by S. exigua had little influence on leaf net photosynthetic rate, transpiration rate, and stomatal conductance of nonmycorrhizal peanut plants but significantly improved net photosynthetic rate and transpiration rate of mycorrhizal plants of both hosts...
April 20, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28387645/evolution-of-the-hypoxia-sensitive-cells-involved-in-amniote-respiratory-reflexes
#2
Dorit Hockman, Alan J Burns, Gerhard Schlosser, Keith P Gates, Benjamin Jevans, Alessandro Mongera, Shannon Fisher, Gokhan Unlu, Ela W Knapik, Charles K Kaufman, Christian Mosimann, Leonard I Zon, Joseph J Lancman, P Duc S Dong, Heiko Lickert, Abigail S Tucker, Clare Vh Baker
The evolutionary origins of the hypoxia-sensitive cells that trigger amniote respiratory reflexes - carotid body glomus cells, and 'pulmonary neuroendocrine cells' (PNECs) - are obscure. Homology has been proposed between glomus cells, which are neural crest-derived, and the hypoxia-sensitive 'neuroepithelial cells' (NECs) of fish gills, whose embryonic origin is unknown. NECs have also been likened to PNECs, which differentiate in situ within lung airway epithelia. Using genetic lineage-tracing and neural crest-deficient mutants in zebrafish, and physical fate-mapping in frog and lamprey, we find that NECs are not neural crest-derived, but endoderm-derived, like PNECs, whose endodermal origin we confirm...
April 7, 2017: ELife
https://www.readbyqxmd.com/read/28346654/glomus-jugulare-manifesting-as-angiogenesis-of-the-external-ear-canal
#3
Sei Y Chung, James K Liu, Richard Chan Park, Robert W Jyung
No abstract text is available yet for this article.
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28346648/glomus-faciale-tumors-a-report-of-3-cases-and-literature-review
#4
Sahar Nadimi, John P Leonetti, Sam J Marzo, Douglas E Anderson, Gulrez Mahmood, Derek Bumgarner
Our objectives in reporting this case series are to familiarize readers with the rare occurrence of paragangliomas originating along the facial nerve and to provide a literature review. We describe 3 such cases that occurred at our tertiary care academic medical center. Two women and 1 man presented with a tumor adjacent to the vertical segment of the facial nerve. The first patient, a 48-year-old woman, presented with what appeared to be a parotid tumor at the stylomastoid foramen; she underwent a parotidectomy, transmastoid facial nerve decompression, and a shave biopsy of the tumor...
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28344537/intravenous-glomus-tumor-masquerading-as-lateral-antebrachial-cutaneous-neuroma
#5
Harvey Chim, Husain Al-Qattan, Herbert Valencia, Carole Brathwaite, Andrew Price, John A I Grossman
Background: Intravenous glomus tumors are extremely rare. Methods: We report a patient with an intravenous glomus tumor within a venous aneurysm misdiagnosed as a neuroma of the lateral antebrachial cutaneous nerve, based on clinical exam, electrodiagnostic studies, and findings on a magnetic resonance imaging neurogram. Results: After surgical resection, the patient's symptoms, including pain and localized hypersensitivity, totally resolved. Conclusions: This case illustrates 2 important points. First, unlike extradigital glomus tumors, magnetic resonance imaging is not reliable in diagnosing intravenous glomus tumors...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28333013/the-risk-of-radiation-induced-tumors-or-malignant-transformation-after-single-fraction-intracranial-radiosurgery-results-based-on-a-25-year-experience
#6
Bruce E Pollock, Michael J Link, Scott L Stafford, Ian F Parney, Yolanda I Garces, Robert L Foote
PURPOSE: To determine the risk of radiation-induced tumors or malignant transformation after single-fraction intracranial stereotactic radiosurgery (SRS). METHODS AND MATERIALS: We performed a retrospective review of 1837 patients who received single-fraction SRS for arteriovenous malformation or benign tumor (meningioma, vestibular schwannoma, pituitary adenoma, glomus tumor) at a single center between 1990 and 2009. Patients were excluded if they refused research authorization (n=31), had a genetic predisposition to tumor development (n=84), received prior or concurrent radiation therapy (n=79), or had less than 5 years of imaging follow-up after SRS (n=501)...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28329592/giant-subungual-glomus-tumor-clinical-dermoscopy-imagiologic-and-surgery-details
#7
Ana Filipa Duarte, Osvaldo Correia, Hugo Barreiros, Eckart Haneke
Glomus tumor is a rare benign vascular hamartoma derived from the modified smooth muscle cells of the glomus body. Paroxysmal pain is the leading symptom. A 78-year-old woman presented at our clinic with a 50-year history of a slow growing painful purple blue tender nodule under the right fourth finger nail. Dermoscopy and magnetic ressonance confirmed the presence of a large subungual tumor and total surgical excision was performed after partial nail plate avulsion. Histologic examination confirmed a glomus tumor...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28322090/the-chemical-inducer-bth-benzothiadiazole-and-root-colonization-by-mycorrhizal-fungi-glomus-spp-trigger-resistance-against-white-rot-sclerotinia-sclerotiorum-in-sunflower
#8
Rita Bán, Gellért Baglyas, Ferenc Virányi, Balázs Barna, Katalin Posta, József Kiss, Katalin Körösi
White rot caused by Sclerotinia sclerotiorum (SS) is one of the most devastating plant diseases of sunflower. Controlling this pathogen by available tools hardly result in acceptable control. The aim of this study was to elucidate the effects of plant resistance inducers, BTH (benzothiadiazole in Bion 50 WG) and arbuscular mycorrhizal fungi (AMF) on disease development of white rot in three sunflower genotypes. Defence responses were characterized by measuring the disease severity and identifying cellular/histological reactions (e...
March 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28303299/glomangiomatosis-of-the-sciatic-nerve-a-case-report-and-review-of-the-literature
#9
Rajendra Kumar, Lisa Vu, John E Madewell, Cynthia E Herzog, Justin E Bird
Glomus tumors are hamartomas, which tend to occur in sites rich in glomus bodies, such as the subungual regions of digits or the deep dermis of the palm, wrist, forearm, and foot. Very rarely, they may involve peripheral nerves. We describe a patient, who, following surgical resection of a solitary glomus tumor of the left distal sciatic nerve in his teens, had recurrence with development of multiple tumors in the course of the nerve over several years. To our knowledge, this is the only known case of glomangiomatosis involving a major peripheral nerve...
March 17, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28298947/glomus-vagale-tumour-can-it-be-diagnosed-only-on-sonography
#10
Shuchi Bhatt, Pooja Verma, Neha Meena, Anupama Tandon, Nadeem Tanveer, Divya Bansal
Vagal paragangliomas are rare benign tumors accounting for only 3% of head and neck paragangliomas and arise from vagal ganglions, predominately the nodose ganglion in the carotid sheath. Imaging plays an important role in their diagnosis, differentiation from more common lesions presenting in the carotid space, and management. MRI is the method of choice for investigation when paragangliomas are clinically suspected. The typical salt-and-pepper appearance in T1-weighted images is well known but not specific to paragangliomas...
March 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28294349/malignant-glomus-tumors-of-the-head-and-neck-in-children-and-adults-evaluation-and-management
#11
Nikolaus E Wolter, Eelam Adil, Alexandria L Irace, Annette Werger, Antonio R Perez-Atayde, Christopher Weldon, Darren B Orbach, Carlos Rodriguez-Galindo, Reza Rahbar
OBJECTIVES/HYPOTHESIS: To describe our current multidisciplinary approach to pediatric malignant glomus tumors of the head and neck and review the current literature. STUDY DESIGN: Retrospective chart review at a tertiary referral children's hospital and a comprehensive literature review. METHODS: A comprehensive literature search of PubMed, Embase, Web of Science, Google Scholar, and EBSCO with respect to malignant glomus tumors of the head and neck was conducted...
March 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28284009/pituitary-carcinoma-in-a-patient-with-an-sdhb-mutation
#12
Nicola Tufton, Federico Roncaroli, Irene Hadjidemetriou, Mary N Dang, Judit Dénes, Leonardo Guasti, Maria Thom, Michael Powell, Stephanie E Baldeweg, Naomi Fersht, Márta Korbonits
We present the first case of pituitary carcinoma occurring in a patient with a succinate dehydrogenase subunit B (SDHB) mutation and history of paraganglioma. She was initially treated for a glomus tumour with external beam radiotherapy. Twenty-five years later, she was diagnosed with a non-functioning pituitary adenoma, having developed bitemporal hemianopia. Recurrence of the pituitary lesion (Ki-67 10% and p53 overexpressed) occurred 5 years after her transsphenoidal surgery, for which she underwent two further operations followed by radiotherapy...
March 10, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28283949/impact-of-chemical-organic-and-bio-fertilizers-application-on-bell-pepper-capsicum-annuum-l-and-biological-parameters-of-myzus-persicae-sulzer-hem-aphididae
#13
M Mardani-Talaee, J Razmjou, G Nouri-Ganbalani, M Hassanpour, B Naseri
Myzus persicae (Sulzer) is a polyphagous aphid that causes chlorosis, necrosis, stunting, and reduce growth rate of the host plants. In this research, the effects of Zinc sulfate and vermicompost (30%), Bacillus subtilis, Pseudomonas fluorescens, Glomus intraradices, G. intraradices × B. subtilis, and G. intraradices × P. fluorescens compared to control was investigated on the growth characters of Capsicum annuum L. and biological parameters of M. persicae. Different fertilizers caused a significant effect on growth characters of C...
March 11, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28272676/intra-articular-glomus-tumor-a-rare-presentation
#14
Ritesh Sachdev, Ishani Mohapatra, Shalini Goel, Smeeta Gajendra
No abstract text is available yet for this article.
February 4, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28258621/eus-diagnosis-of-subepithelial-lesions
#15
REVIEW
Mitsuhiro Kida, Yusuke Kawaguchi, Eiji Miyata, Rikiya Hasegawa, Toru Kaneko, Hiroshi Yamauchi, Shuko Koizumi, Kosuke Okuwaki, Shiro Miyazawa, Tomohisa Iwai, Hidehiko Kikuchi, Maya Watanabe, Hiroshi Imaizumi, Wasaburo Koizumi
Using EUS, it is practicable to diagnose Subepithelial lesions (SEL) with originating layer, echo level, and internal echo pattern etc. Lipoma, lymphangioma, and cyst have characteristic features, therefore they have no need for EUS-FNA. Ectopic pancreases and glomus tumors, which are originated from 3(rd) and 4(th) layer, are frequently seen in the antrum. Although ectopic pancreases located in the fundus or body are large and originated from 3(rd) and 4(th) layer (thickening of 4(th) layer). Each Subepithelial lesions has each characteristic finding...
March 3, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28258426/how-interacting-fungal-species-and-mineral-nitrogen-inputs-affect-transfer-of-nitrogen-from-litter-via-arbuscular-mycorrhizal-mycelium
#16
Yuejun He, J Hans C Cornelissen, Zhangcheng Zhong, Ming Dong, Changhong Jiang
In the karst landscape, widespread in the world including southern China, soil nutrient supply is strongly constrained. In such environments, arbuscular mycorrhizal (AM) fungi may facilitate plant nutrient uptake. However, the possible role of different AM fungal species, and their interactions, especially in transferring nitrogen (N) from litter to plant, is poorly understood. We conducted two microcosm experiments to investigate the role that two karst soil AM fungi, Glomus etunicatum and Glomus mosseae, play in the transfer of N from decomposing litter to the host plant and to determine how N availability influences these processes...
March 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28252583/-the-experience-with-the-surgical-treatment-of-glomus-tumours
#17
V M Svistushkin, E A Shevchik, I T Muhamedov, D M Pshonkina
INTRODUCTION: glomus tumours of the temporal bones rank second after neurinomas of the VII-th pair of cranial nerves among the pathological conditions that are likely to cause hearing mpairment. Being extensively vascularized locally invasive neoplasms, glomus tumours constitute a serious challenge for the surgeon because of their localization in the vicinity of the vitally important vascular and neural structures of the lateral skull base. AIM: To characterize some peculiar features of the surgical interventions and postoperative management of the patients presenting with different types of glomus tumours...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28245992/overt-and-subclinical-baroreflex-dysfunction-following-bilateral-carotid-body-tumor-resection-pathophysiology-diagnosis-and-implications-for-management
#18
REVIEW
Michael G Z Ghali, Visish M Srinivasan, Ehab Hanna, Franco DeMonte
Carotid body paragangliomas are rare, usually benign, tumors arising from glomus cells of the carotid body. Bilateral involvement is present in ∼5% of sporadic cases and up to one-third of familial cases. In the majority of patients undergoing bilateral resection of carotid body tumors (CBTs), a condition known as baroreflex failure syndrome (BFS) develops following resection of the second tumor characterized by headache, anxiety, emotional lability, orthostatic lightheadedness, hypertension, and tachycardia...
February 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28220958/contrast-enhanced-harmonic-endoscopic-ultrasonography-for-differential-diagnosis-of-submucosal-tumors-of-the-upper-gastrointestinal-tract
#19
Ken Kamata, Mamoru Takenaka, Masayuki Kitano, Shunsuke Omoto, Takeshi Miyata, Kosuke Minaga, Kentaro Yamao, Hajime Imai, Toshiharu Sakurai, Tomohiro Watanabe, Naoshi Nishida, Takaaki Chikugo, Yasutaka Chiba, Haruhiko Imamoto, Takushi Yasuda, Andrea Lisotti, Pietro Fusaroli, Masatoshi Kudo
BACKGROUND AND AIMS: To evaluate contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) for the differential diagnosis of submucosal tumors (SMT) of the upper gastrointestinal tract. METHODS: Between June 2008 and May 2015, 157 consecutive patients with submucosal lesions of the upper gastrointestinal tract were evaluated by CH-EUS. This was a single-center retrospective analysis of prospectively collected data in a registry. The data from 73 patients who later underwent surgical resection were analyzed in this study...
February 21, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28203514/glomangiosarcoma-arising-from-a-prior-biopsy-site
#20
Amy M Maselli, Amani V Jambhekar, John G Hunter
Glomangiosarcoma represents a rare malignant variant of the benign glomus tumor that typically presents as a tender, slowly growing nodule with a predilection for the lower extremities. Unlike their benign counterparts, glomangiosarcomas may display aggressive characteristics such as large size, local invasion, and a tendency to recur after excision. Although wide local excision remains the treatment of choice, rare cases of systemic metastasis have been previously reported. We present a case of glomangiosarcoma arising at a prior biopsy site after excision of an unknown soft tissue lesion...
January 2017: Plastic and Reconstructive Surgery. Global Open
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