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https://www.readbyqxmd.com/read/28916727/inflammatory-responses-induce-an-identity-crisis-of-alveolar-macrophages-leading-to-pulmonary-alveolar-proteinosis
#1
Risa Ebina-Shibuya, Mitsuyo Matsumoto, Makoto Kuwahara, Kyoung-Jin Jang, Manabu Sugai, Yoshiaki Ito, Ryo Funayama, Keiko Nakayama, Yuki Sato, Naoto Ishii, Yasunobu Okamura, Kengo Kinoshita, Kohei Kometani, Tomohiro Kurosaki, Akihiko Muto, Masakazu Ichinose, Masakatsu Yamashita, Kazuhiko Igarashi
Pulmonary alveolar proteinosis (PAP) is a severe respiratory disease characterized by dyspnea caused by accumulation of surfactant protein. Dysfunction of alveolar macrophages (AMs), which regulate the homeostasis of surfactant protein, leads to the development of PAP, for example, in mice lacking BTB and CNC homology 2 (Bach2). However, how Bach2 helps prevent PAP is unknown, and cell-specific effects of Bach2 are undefined. Using mice lacking Bach2 in specific cell types, we found that the PAP-phenotype of Bach2-deficient mice is due to Bach2 deficiency in more than two types of immune cells...
September 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28916165/muc1-deficiency-exacerbates-pulmonary-fibrosis-in-a-mouse-model-of-silicosis
#2
Kosuke Kato, Marina A Zemskova, Alec D Hanss, Marianne M Kim, Sandra J Gendler, Ross Summer, Kwang Chul Kim
BACKGROUND: MUC1 (MUC in human and Muc in animals) is a membrane-tethered mucin expressed on the apical surface of lung epithelial cells. However, in the lungs of patients with interstitial lung disease, MUC1 is aberrantly expressed in hyperplastic alveolar type II epithelial (ATII) cells and alveolar macrophages (AM), and elevated levels of extracellular MUC1 are found in bronchoalveolar lavage (BAL) fluid and the serum of these patients. While pro-fibrotic effects of extracellular MUC1 have recently been described in cultured fibroblasts, the contribution of MUC1 to the pathobiology of pulmonary fibrosis is unknown...
September 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28914826/pulmonary-alveolar-proteinosis-a-case-report
#3
Luis Alberto Concepción-Urteaga, Luis Alejandro Rodríguez-Hidalgo, Jorge Luis Cornejo-Portella, Oscar Neri Alquizar-Horna, Daniel Anderson Aguilar-Villanueva, Marcio José Concepción-Zavaleta, Mario Gustavo Azañero-Luján
INTRODUCTION: Pulmonary alveolar proteinosis is a rare, diffuse interstitial lung disease, characterized by alveolar obstruction due to the accumulation of pulmonary surfactant. CLINICAL PRESENTATION: A 30-year-old male with progressively worsening dyspnea and non-productive cough for one year. He was a sugar cane plantation worker and had prior recurrent respiratory infections. Physical exam revealed cyanosis, and bilateral coarse and fine rales. Chest computed tomography showed diffuse crazy paving pattern...
September 14, 2017: Medwave
https://www.readbyqxmd.com/read/28914593/effects-of-local-administration-of-tiludronic-acid-on-experimental-periodontitis-in-diabetic-rats
#4
Nara L T Nunes, Michel R Messora, Luiz Fernando Oliveira, Mario Lisboa, Marina Costa Barcellos Garcia, Rodrigo O C C Rêgo, Arthur Belém Novaes, Sérgio Luís Scombatti de Souza, Edilson Ervolino, Flávia A C Furlaneto
BACKGROUND: Tiludronic acid (TIL) presents antiresorptive and anti-inflammatory properties and it has not been evaluated in the association periodontitis-diabetes mellitus (DM) to date. This study evaluated the effects of local administration of TIL on experimental periodontitis (EP) in rats with streptozotocin-induced DM. METHODS: Thirty-two animals (Rattus norvegicus, albinus, Wistar) were divided into groups DM/C (Control), DM/EP, DM/EP/TIL1 and DM/EP/TIL3. In groups EP, a ligature was placed around mandibular molars (MM)...
September 15, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28913295/management-of-le-fort-i-fracture
#5
REVIEW
Hak Su Kim, Seong Eun Kim, Hyun Tae Lee
Among the classification of maxillary fracture, the Le Fort classification is the best-known categorization. Le Fort (1901) completed experiments that determined the maxilla areas of structural weakness which he designated as the "lines of weakness". According to these results, there are three basic fracture line patterns (transverse, pyramidal and craniofacial disjunction). A transverse fracture is a Le Fort I fracture that is above the level of the apices of the maxillary teeth section, including the entire alveolar process of the maxilla, vault of the palate and inferior ends of the pterygoid processes in a single block from the upper craniofacial skeleton...
March 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28905497/alveolar-soft-part-sarcoma-a-case-report-with-emphasis-on-some-unusual-cytological-features
#6
Neelam Sood, Minakshi Gulia
Alveolar soft part sarcoma is a very rare, slow growing highly angiogenic tumor with poor prognosis. Most common site in children and infants is head and neck region and in adults it most commonly occurs in extremities especially thigh. In our case study, an 8 years old female patient presented with a gradually progressive left shoulder lump. FNAC from the lesion showed cellular smears with polyhedral and spindly cells showing abundant finely vacuolated cytoplasm, nuclear pleomorphism, intranuclear pseudoinclusions, and few bare nuclei...
September 14, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28891547/classification-of-alveolar-bone-destruction-patterns-on-maxillary-molars-by-using-cone-beam-computed-tomography
#7
G Ozcan, A E Sekerci
OBJECTIVE: The defective diagnosis of alveolar structures is one of most serious handicaps when assessing available periodontal treatment options for the prevention of tooth loss. The aim of this research was to classify alveolar bone defects in the maxillary molar region which is a challenging area for dental implant applications. To our knowledge, this is the first study of periodontal bone defect prevalence by using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: In this study, the remaining alveolar bone patterns of 669 maxillary molars of 243 patients with periodontal bone loss were investigated on four aspects and the furcation areas of teeth, and then they were classified into six main groups...
August 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28883249/pneumonitis-with-diffuse-alveolar-hemorrhage-induced-by-sho-seiryu-to
#8
Kazuo Tsuchiya, Mikio Toyoshima, Takafumi Suda
A 78-year-old man presented with acute-onset fever and dyspnea. He had been taking Sho-seiryu-to for allergic rhinitis. A chest radiograph showed diffuse bilateral ground-glass opacities with subpleural sparing, crazy-paving pattern, and traction bronchiectasis. The patient's bronchoalveolar lavage fluid was bloody and transbronchial lung biopsy specimens showed alveolitis, organizing pneumonia, and type 2 alveolar epithelial cell proliferation. There were no clinical and laboratory findings suggestive of respiratory tract infection or connective tissue disease...
September 6, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28883006/acute-fibrinous-and-organising-pneumonia
#9
João Rocha Gonçalves, Ricardo Marques, Paula Serra, Leila Cardoso
Acute fibrinous and organising pneumonia (AFOP) is a rare histological pattern of interstitial lung disease. The authors describe a 60-year-old woman admitted to the hospital for sustained fever, presenting with an alveolar opacity on chest X-ray, with the presumed diagnosis of community-acquired pneumonia and the onset of antibiotics. Since serological results suggested that Legionella pneumophila was the infectious agent, she was discharged on levofloxacin. A week later, she was again admitted with fever...
September 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28879643/adenoid-cystic-carcinoma-of-the-oral-cavity-radiology-pathology-correlation
#10
Imran Uraizee, Nicole A Cipriani, Daniel T Ginat
Adenoid cystic carcinoma in the oral cavity is an uncommon salivary gland malignancy that has a propensity for perineural spread. A high-grade variant is evidenced by an abundance of pleomorphic cells, loss of the classic biphasic epithelial-myoepithelial growth pattern, and comedonecrosis, as well as elevated Ki-67. CT and MRI can both be useful for demonstrating the extent of invasion in oral cavity-associated adenoid cystic carcinoma, which can attain the inferior alveolar nerve for perineural spread by direct invasion through the mandible...
September 6, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28877343/transition-to-agriculture-in-south-eastern-arabia-insights-from-oral-conditions
#11
Olivia Munoz
OBJECTIVES: In Southeast (SE) Arabia, agriculture is supposed to expand around 3000 BC, but its tempo and its actual role in populations' subsistence is still debated by archaeologists. Here, we compare dental health conditions of 11 skeletal samples from coastal and inland sites, dated from the Late Neolithic (ca. 4500-3100 BC) to the Early Bronze Age (EBA), conventionally divided into Hafit (ca. 3100-2700 BC) and Umm an-Nar period (ca. 2700-2000 BC). The goal is to assess long-term trends in subsistence patterns and regional variability during the local transition to agriculture...
September 6, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28877057/pleuroparenchymal-fibroelastosis-a-review-of-histopathologic-features-and-the-relationship-between-histologic-parameters-and-survival
#12
Reena Khiroya, Claudio Macaluso, Maria A Montero, Athol U Wells, Felix Chua, Maria Kokosi, Toby M Maher, Anand Devaraj, Alexandra Rice, Elisabetta A Renzoni, Andrew G Nicholson
Pleuroparenchymal fibroelastosis (PPFE) is now a defined clinicopathologic entity in the updated 2013 ATS/ERS classification of idiopathic interstitial pneumonias (IIPs), which has led to a significant increase in cases being diagnosed at our institution. We have therefore reviewed 43 PPFE cases (58 biopsies in total) to assess whether any clinical or histopathologic features provide prognostic information. A semiquantatitive grading system was used to assess extent of fibroblastic foci, intra-alveolar fibroelastosis, visceral pleural fibrosis, chronic inflammation in areas of fibrosis, vascular fibrointimal thickening, and presence of granulomas...
September 4, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28876369/quantitative-analysis-of-tongue-movement-in-14-phonemes-of-brazilian-portuguese
#13
Lídia Maurício da Silva, Aline Mara de Oliveira Vassoler, Viviane Cristina de Castro Marino, Larissa Cristina Berti
Purpose: The aim of this study was to characterize the ultrasonographic pattern of tongue movement in 14 consonant phonemes of Brazilian Portuguese (BP), seeking to identify and describe ultrasonographic parameters that could grasp the difference of manner and place of articulation among these phonemes. Methods: We selected 20 individuals with typical speech production, aged between 20-30 years of both genders. The selected stimuli included the 14 lingual consonant BP phonemes in the intervocalic context of [a]...
September 4, 2017: CoDAS
https://www.readbyqxmd.com/read/28875443/sinonasal-tract-alveolar-rhabdomyosarcoma-in-adults-a-clinicopathologic-and-immunophenotypic-study-of-fifty-two-cases-with-emphasis-on-epithelial-immunoreactivity
#14
Lester D R Thompson, Vickie Y Jo, Abbas Agaimy, Antonio Llombart-Bosch, Gema Nieto Morales, Isidro Machado, Uta Flucke, Paul E Wakely, Markku Miettinen, Justin A Bishop
Sinonasal tract (SNT) alveolar rhabdomyosarcoma (ARMS) are frequently misdiagnosed, especially in adults. Fifty-two adult (≥18 years) patients with SNT ARMS were reviewed and characterized by immunohistochemistry and molecular studies. Twenty-six females and 26 males (18-72 years; mean 43.2 years), presented after a short duration (mean 2.6 months) with a large (mean 5.5 cm) destructive nasal cavity mass, involving multiple contiguous paranasal sites (n = 46) and with cervical adenopathy (n = 41)...
September 5, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28872184/role-of-toll-like-receptor-2-in-inflammation-and-alveolar-bone-loss-in-experimental-peri-implantitis-versus-periodontitis
#15
X Yu, Y Hu, M Freire, P Yu, T Kawai, X Han
BACKGROUND AND OBJECTIVE: Peri-implantitis and periodontitis are different entities in immune characteristics even though they share similar features in clinical and radiologic signs. Toll-like receptor 2 (TLR-2), one of the key pathogen-recognition receptors in the innate immune system, plays an important role in the progression of periodontitis. However, the role of TLR-2 in peri-implantitis remains unclear. The objective of this study was to investigate the role of TLR-2 in inflammation and alveolar bone loss in a murine model of ligature-induced peri-implantitis and to compare it with ligature-induced periodontitis...
September 5, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28862049/pulmonary-adenocarcinoma-intra-alveolar-variant-a-rare-entity-mimicking-desquamative-interstitial-pneumonia
#16
Eric Hirsch, Jaishree Jagirdar, Alia Nazarullah
Exclusive discohesive tumor cells within intra-alveolar spaces is a rare pattern of involvement of primary and metastatic lung tumors. In the absence of a tumoral mass, this pattern closely mimics desquamative interstitial pneumonia (DIP) clinically, radiologically, and histologically. However, a secondary DIP pattern may be seen adjacent to a tumor mass not infrequently. Here, we describe a case of a 64-year-old woman status post bilateral lung transplantation, who was radiologically thought to have an interstitial lung disease...
August 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28861890/high-grade-renal-cell-carcinoma-with-emperipolesis-clinicopathological-immunohistochemical-and-molecular-genetic-analysis-of-14-cases
#17
Pavla Rotterova, Petr Martinek, Reza Alaghehbandan, Kristyna Prochazkova, Ivan Damjanov, Joanna Rogala, Saul Suster, Delia Perez-Montiel, Isabel Alvarado-Cabrero, Maris Sperga, Marian Svajdler, Kvetoslava Michalova, Kristyna Pivovarcikova, Ondrej Daum, Milan Hora, Martin Dusek, Ondrej Ondic, Adela Stehlikova, Michal Michal, Ondrej Hes
Emperipolesis has recently been described as a constant feature of "biphasic squamoid" papillary renal cell carcinoma (BPRCC). We also noticed this in some high-grade (HG) RCC, which promoted the present study to estimate the incidence of emperipolesis in RCCs and to describe them in further detail. 14 cases of HGRCC showing emperipolesis were retrieved from our registry. Microscopic examination of filed slides was supplemented with immunohistochemical and molecular-genetic analyses using paraffin embedded tissue...
September 1, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28860622/lsd1-modulates-the-non-canonical-integrin-%C3%AE-3-signaling-pathway-in-non-small-cell-lung-carcinoma-cells
#18
So-Young Lim, Iris Macheleidt, Priya Dalvi, Stephan C Schäfer, Martin Kerick, Luka Ozretić, Sandra Ortiz-Cuaran, Julie George, Sabine Merkelbach-Bruse, Jürgen Wolf, Bernd Timmermann, Roman K Thomas, Michal R Schweiger, Reinhard Buettner, Margarete Odenthal
The epigenetic writer lysine-specific demethylase 1 (LSD1) is aberrantly upregulated in many cancer types and its overexpression correlates with poor survival and tumor progression. In this study, we analysed LSD1 function in non-small cell lung cancer adenocarcinomas. Expression profiling of 182 cases of lung adenocarcinoma proved a significant correlation of LSD1 overexpression with lung adenocarcinoma progression and metastasis. KRAS-mutated lung cancer cell clones were stably silenced for LSD1 expression...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28859138/inflammatory-bowel-disease-and-patterns-of-volatile-organic-compounds-in-the-exhaled-breath-of-children-a-case-control-study-using-ion-molecule-reaction-mass-spectrometry
#19
Lorenzo Monasta, Chiara Pierobon, Andrea Princivalle, Stefano Martelossi, Annalisa Marcuzzi, Francesco Pasini, Luigi Perbellini
Inflammatory bowel diseases (IBD) profoundly affect quality of life and have been gradually increasing in incidence, prevalence and severity in many areas of the world, and in children in particular. Patients with suspected IBD require careful history and clinical examination, while definitive diagnosis relies on endoscopic and histological findings. The aim of the present study was to investigate whether the alveolar air of pediatric patients with IBD presents a specific volatile organic compounds' (VOCs) pattern when compared to controls...
2017: PloS One
https://www.readbyqxmd.com/read/28852519/fatal-diffuse-alveolar-haemorrhage-mimicking-acute-exacerbation-in-idiopathic-pulmonary-fibrosis-treated-with-nintedanib
#20
Keishi Sugino, Yasuhiko Nakamura, Muneyuki Sekiya, Hiroshi Kobayashi, Kazutoshi Shibuya, Sakae Homma
A 75-year-old man was referred to our hospital with a 1-year history of persistent dry cough and progressive dyspnoea on exertion. He was treated with aspirin due to thrombosis of internal carotid artery. He was diagnosed with idiopathic pulmonary fibrosis (IPF)/usual interstitial pneumonia (UIP), and started on inhaled N-acetylcysteine therapy and pirfenidone. Since his clinical condition progressively deteriorated after 6 months, he was switched from pirfenidone to nintedanib. As a result, his general condition worsened rapidly...
November 2017: Respirology Case Reports
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