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https://www.readbyqxmd.com/read/28637999/a-morphological-study-of-the-foramina-of-the-mandible-in-the-japanese-macaque-by-cone-beam-computed-tomography
#1
Masataka Sunohara, Yoko Miwa, Iwao Sato
The mandibular canal (MC) contains vessels and nerves in the mandible of the Japanese macaque (JM). The inferior alveolar nerves and vessels of the mandible insert from the mandibular foramen and then run through the MC, the mental foramen and spinal foramen to the outside of the mandible. However, the detailed morphological properties of multiple canals, such as the accessory canal (AC) of the mandible, are unknown in JMs. The purpose of this study was to describe the multiple canals of JMs and to determine the location and analyse the measurements of the JM mandible...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/28627346/-study-on-rac1-mapk-erk-pathway-mediated-mechanism-and-role-in-rats-with-ventilator-induced-lung-injury
#2
Guanghua Tao, Linghui Pan, Ren Jing, Fei Lin, Huijun Dai, Wanyun Ge
OBJECTIVE: To investigate the role of Ras-related C3 botulinum toxin substrate 1/mitogen-activated protein kinase/extracellular signal-regulated kinase (Rac1/MAPK/ERK) signal pathway in rats with ventilator induced lung injury (VILI) and its mechanism. METHODS: Thirty Sprague-Dawley (SD) rats were randomly divided into spontaneous respiration group, normal tidal volume (VT) group and high VT group with 10 rats in each group. The rats in spontaneous respiration group were kept their spontaneous breathing...
March 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28624341/extranodal-lymphoma-arising-within-the-maxillary-alveolus-a-case-report
#3
David MacDonald, Thomas Li, Siu Fai Leung, Justin Curtin, Andy Yeung, Montgomery A Martin
OBJECTIVE: Extranodal lymphomas affecting the head and neck arise infrequently within the bones of the jaws. This is a report of a symptom-free patient whose general dentist detected a radiolucency as an incidental finding on conventional radiography. STUDY DESIGN: The conventional radiography of lesions in the maxilla displayed "floating teeth" indicative of malignancy. This case was then imaged by cone beam computed tomography (CBCT), multidetector computed tomography (MDCT), and magnetic resonance imaging (MRI)...
May 4, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28617737/3d-cone-beam-computed-tomography-volumetric-outcomes-of-rhbmp-2-demineralized-bone-matrix-vs-iliac-crest-bone-graft-for-alveolar-cleft-reconstruction
#4
Fan Liang, Stephen Yen, Thomas Imahiyerobo, Luke Sanborn, Leia Yen, Daniel Yen, Sheila Nazarian, Breanna Jedrzejewski, Mark Urata, Jeffrey Hammoudeh
BACKGROUND: Recent studies indicate that recombinant human bone morphogenetic protein (rhBMP-2) in a demineralized bone matrix scaffold (MS) is a comparable alternative to iliac bone autograft in the setting of secondary alveolar cleft repair. Post-reconstruction occlusal radiographs demonstrate improved bone stock when rhBMP-2/MS is used, but lack the capacity to evaluate bone growth in three dimensions. This study uses cone beam computed tomography (CBCT) to provide the first clinical evaluation of volumetric and density comparisons between these two treatment modalities...
June 14, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28606827/a-new-method-of-volumetric-assessment-of-alveolar-bone-grafting-for-cleft-patients-using-cone-beam-computed-tomography
#5
Bin Feng, Meng Jiang, Xue Xu, Jingtao Li
OBJECTIVE: The aims of this study were to propose a new method for volumetric assessment of alveolar bone grafting and to quantitatively assess alveolar bone grafting based on this method. STUDY DESIGN: Cone beam computed tomography images of 18 patients with unilateral cleft alveolus were selected. Volume of the alveolar cleft before grafting operation (VOLcleft), graft bone filled into cleft immediately after operation (VOLgraft), and bony bridge formed 1 year after operation (VOLbridge) were obtained...
April 19, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28573094/long-term-follow-up-study-of-young-adults-treated-for-unilateral-complete-cleft-lip-alveolus-and-palate-by-a-treatment-protocol-including-two-stage-palatoplasty-speech-outcomes
#6
Isabelle Francisca Petronella Maria Kappen, Dirk Bittermann, Laura Janssen, Gerhard Koendert Pieter Bittermann, Chantal Boonacker, Sarah Haverkamp, Hester de Wilde, Marise Van Der Heul, Tom Fjmc Specken, Ron Koole, Moshe Kon, Corstiaan Cornelis Breugem, Aebele Barber Mink van der Molen
BACKGROUND: No consensus exists on the optimal treatment protocol for orofacial clefts or the optimal timing of cleft palate closure. This study investigated factors influencing speech outcomes after two-stage palate repair in adults with a non-syndromal complete unilateral cleft lip and palate (UCLP). METHODS: This was a retrospective analysis of adult patients with a UCLP who underwent two-stage palate closure and were treated at our tertiary cleft centre. Patients ≥17 years of age were invited for a final speech assessment...
May 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28556240/oocyte-viability-and-cortical-activation-under-different-salt-solutions-in-prochilodus-lineatus-teleostei-prochilodontidae
#7
D C Ribeiro, Jma Chagas, C Bashiyo-Silva, R S Costa, R Veríssimo-Silveira, A Ninhaus-Silveira
This study aimed to evaluate the effect of five salt solutions in the maintenance of morphological features of cortical alveolus, hydration and fertilization capacity of Prochilodus lineatus oocytes. For this purpose, five saline solutions were tested: Ringer's solution, Ringer's lactate solution, Hank's balanced salt solution (HBSS), Hank's balanced salt solution without calcium (HBSS without calcium) and solution for salmonid eggs. Oocytes were maintained for 2 hr in saline solution with controlled temperature subsequently evaluated for hydration, cortical activation and fertilization ability...
May 28, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28555199/multidisciplinary-approach-for-replacement-%C3%A2-root-resorption-following-severe-intrusive-luxation-%C3%A2-a-case-report-of-decoronation
#8
Thiago Farias Rocha Lima, Julio Vargas Neto, Renato Corrêa Vianna Casarin, Maíra Prado, Brenda Paula Figueiredo de Gomes, José Flávio Affonso de Almeida, Alexandre Augusto Zaia, Adriana de Jesus Soares
Intrusive luxation is a severe trauma-related event with a high frequency of pulp necrosis and root resorption. A common complication following intrusion is tooth ankylosis, which can extend to progressive replacement root resorption. An increasing infraposition in growing individuals can also occur. Decoronation is a new conservative treatment for cases of tooth ankylosis in young patients who have not finished growing. In this surgical technique, the tooth crown is removed and the root with replacement resorption process remains inside the alveolus...
2017: Quintessence International
https://www.readbyqxmd.com/read/28538066/radial-forearm-osteocutaneous-free-flap-for-reconstruction-of-hard-palate-with-alveolar-defect
#9
Euicheol C Jeong, Sehoon Yoon, Young Ho Jung
The radial forearm free flap is beneficial for reconstruction of large palatal defect with oronasal fistula.A 51-year-old male patient who had anterior palate defect including alveolus after the radiation therapy of malignant cancer on the nasopharyngeal area undertook the radial forearm osteocutaneous free flap to close the oronasal fisula and restore the alveolar arch. The small radial bone segment was fixed in the alveolar defect and vascular anastomoses were performed with facial vessels in neck. The donor site was closed with split thickness skin graft...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28533653/unusual-presentation-of-rare-cardiac-tumor-the-role-of-f-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#10
Sameer Kamalakar Taywade, Nishikant Avinash Damle, Madhavi Tripathi, S T ArunRaj, Averilicia Passah, Amarinder Singh Malhi, Sanjeev Kumar, Chandrasekhar Bal
Primary cardiac tumors are rare with angiosarcoma being the most common among malignant cardiac tumor. We present a case of 30-year-old female patient in whom F-18-fluorodeoxyglucose positron emission tomography/computed tomography demonstrated a necrotic mass in right atrium with multiple fluorodeoxyglucose avid lesions in both upper and lower alveolus, liver, multiple bones, and bilateral lungs. Patient underwent biopsy from gum swelling which revealed metastatic angiosarcoma.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28516446/a-primary-human-lung-alveolus-on-a-chip-model-of-intravascular-thrombosis-for-assessment-of-therapeutics
#11
Abhishek Jain, Riccardo Barrile, Andries D van der Meer, Akiko Mammoto, Tadanori Mammoto, Karen De Ceunynck, Omozuanvbo Aisiku, Monicah A Otieno, Calvert S Louden, Geraldine A Hamilton, Robert Flaumenhaft, Donald E Ingber
Pulmonary thrombosis is a significant cause of patient mortality, however, there are no effective in vitro models of thrombi formation in human lung microvessels, that could also assess therapeutics and toxicology of antithrombotic drugs. Here we show that a microfluidic lung alveolus-on-a-chip lined by human primary alveolar epithelium interfaced with endothelium, and cultured under flowing whole blood can be used to perform quantitative analysis of organ-level contributions to inflammation-induced thrombosis...
May 17, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28513894/the-dentoalveolar-prosthesis-a-novel-approach-in-the-reconstruction-of-hard-and-soft-tissue-deficiencies
#12
James K Doll, Peter Barndt, Gerald Grant
A clinical problem commonly encountered by the advanced restorative dentist is a requirement to replace missing teeth and the supporting alveolus in areas adjacent to healthy or manageable dentition. A potential solution could utilize a dentoalveolar prosthesis fabricated on two or more implants in the edentulous area. The implant substructure, or framework, may be cast, milled, or selectively laser melted from a variety of metals. A superstructure, or ceramic overlay incorporating a ceramic or composite resin gingival tissue component, is constructed to fit over the implant substructure and luted to the substructure with resin cement...
May 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28478868/autotransplantation-of-teeth-using-computer-aided-rapid-prototyping-of-a-three-dimensional-replica-of-the-donor-tooth-a-systematic-literature-review
#13
REVIEW
J P Verweij, F A Jongkees, D Anssari Moin, D Wismeijer, J P R van Merkesteyn
This systematic review provides an overview of studies on autotransplantation techniques using rapid prototyping for preoperative fabrication of donor tooth replicas for preparation of the neo-alveolus. Different three-dimensional autotransplantation techniques and their treatment outcomes are discussed. The systematic literature search yielded 19 articles that satisfied the criteria for inclusion. These papers described one case-control study, four clinical observational studies, one study with a clinical and in vitro part, four in vitro studies, and nine case reports...
May 3, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28468173/double-anterior-segmental-osteotomy-under-local-anesthesia-for-correcting-adult-protrusion-with-thin-alveolus-and-ankylosed-tooth
#14
Byung-Joon Choi, Baek-Soo Lee, Hee-Jung Lee, Ki-Ho Park, Seong-Hun Kim
BACKGROUNDS: This paper describes an additional benefit in double anterior segmental osteotomy to correct severe anterior protrusion in adult patients with extremely thin mandibular alveolus and ankylosed tooth. For the optimal anterior segmental retraction, an ankylosed posterior tooth needed surgical inclination reposition. During anterior segmental osteotomy surgery under local anesthesia, additional single tooth osteotomy was performed without challenge. METHODS: For anterior segment retraction, osteotomy cuts were made by the surgeon to define a block of bone embedding 6 mandibular anterior teeth...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28458970/cleft-palate-repair-without-lateral-relaxing-incision
#15
Hisao Ogata, Yoshiaki Sakamoto, Kazuo Kishi
BACKGROUND: The goals of successful palate repair include optimization of speech and feeding, avoidance of fistula formation, and mitigation of adverse maxillary growth. However, the effects of scar formation on maxillary growth have not been discussed in detail. METHODS: Between November 2010 and December 2011, the palateplasty was performed for 24 patients with cleft palate (median age, 12 months; range, 11-18 months). In the velum, a symmetrical intravelar veloplasty with mucosal Z-plasty was performed on both the nasal and oral sides...
March 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28435094/diammonium-glycyrrhizinate-alleviates-hepatopulmonary-syndrome-via-restoring-superoxide-dismutase-3-activity-in-rats
#16
Xin Zhao, Jinyu Liu, Shijun Yang, Chen Chen, He Yin, Ting Li, Qiuting Wang, Xiaoya Li, Yulin Lin, Dayong Cai
Hepatopulmonary syndrome (HPS) has a fatal hypoxemia from pulmonary shunts. Superoxide dismutase 3 (SOD3) deficiency involves in this pathogenesis. The purpose of this study was to investigate the underlying mechanisms of diammonium glycyrrhizinate (DG) on HPS via SOD3. Carbon tetrachloride induced HPS rats were treated with captopril or DG for 56 days. Blood gas, pulmonary artery pressures, and histological changes were measured. Molecule dynamics of inducible (iNOS), endothelial (eNOS), neuronal nitric oxide synthase (nNOS) and SOD3 were assessed by immunohistochemistry, quantitative RT-PCR and western blot...
July 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28409326/effect-of-corticision-on-orthodontic-tooth-movement-in-a-rat-model-as-assessed-by-rna-sequencing
#17
Qihui Gu, Shuyu Guo, Dongyue Wang, Tingting Zhou, Lin Wang, Zhendong Wang, Junqing Ma
Corticision is a common technique to accelerate orthodontic tooth movement; however, not much is known about the underlying mechanisms. In this study, we investigated the mechanism of alveolar tissue remodeling after corticision in a rat model of tooth movement (TM) by analyzing the differential transcriptome. A total of 36 male rats were equally divided into TM and TM with corticision (TM+C) groups. Alveolar bone response was examined using micro-computed tomography (micro-CT). Osteoclasts and osteoblasts were quantified on tartrate-resistant acid phosphatase (TRAP) and Goldner's trichrome staining...
April 13, 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28400274/characterization-of-gnrh-gnih-elements-in-the-olfacto-retinal-system-and-ovary-during-zebrafish-ovarian-maturation
#18
Sheryll Corchuelo, Emanuel R M Martinez, Arno J Butzge, Lucas B Doretto, Juliana M B Ricci, Fernanda N Valentin, Laura S O Nakaghi, Gustavo M Somoza, Rafael H Nóbrega
Gonadotropin releasing hormone (GnRH) is one of the key players of brain-pituitary-gonad axis, exerting overall control over vertebrate reproduction. In zebrafish, two variants were characterized and named as Gnrh2 and Gnrh3. In this species, Gnrh3, the hypohysiotropic form, is expressed by neurons of the olfactory-retinal system, where it is related with food detection, intra/interspecific recognition, visual acuity and retinal processing modulation. Previous studies have reported the presence of Gnrh receptors in the zebrafish retina, but not yet in the zebrafish olfactory epithelium...
April 8, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28382281/predictive-and-prognostic-biomarkers-of-respiratory-diseases-due-to-particulate-matter-exposure
#19
REVIEW
Hyo Jeong Kim, Min Gi Choi, Moo Kyun Park, Young Rok Seo
Air pollution is getting severe and concerns about its toxicity effects on airway and lung disease are also increasing. Particulate matter (PM) is major component of air pollutant. It causes respiratory diseases, such as asthma, chronic obstructive pulmonary disease, lung cancer, and so on. PM particles enter the airway and lung by inhalation, causing damages to them. Especially, PM2.5 can penetrate into the alveolus and pass to the systemic circulation. It can affect the cardiopulmonary system and cause cardiopulmonary disorders...
March 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28377114/uptake-and-selective-partitioning-of-dietary-lipids-to-ovarian-and-muscle-tissue-of-maturing-female-coho-salmon-oncorhynchus-kisutch-during-secondary-oocyte-growth
#20
Ronald B Johnson, Eric L Kroeger, William L Reichert, Cameron S Carter, Michael B Rust
Female coho salmon, Oncorhynchus kisutch, were fed one of two experimental feeds containing lipids with markedly different stable (13)C isotope signatures during the late cortical alveolus, lipid droplet, and vitellogenesis stages of secondary oocyte growth. Ovarian and muscle lipids fatty acid concentrations were significantly affected by treatment during all three stages of development. Stable (13)C isotope analyses confirmed that dietary lipids were incorporated into both ovarian and muscle lipids during all three stages and revealed that ovarian lipids were more affected than muscle lipids during vitellogenesis...
June 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
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