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https://www.readbyqxmd.com/read/28647772/diseases-of-the-esophagus-a-pattern-approach
#1
REVIEW
Marc S Levine, Stephen E Rubesin
The esophagus may be involved by a variety of morphologic abnormalities, including nodules and plaques, ulceration, distal esophageal strictures and rings, upper or midesophageal strictures, and diffuse narrowing (also known as a small-caliber esophagus). The use of a pattern approach for evaluating esophageal disease on barium studies facilitates diagnosis of a host of pathologic conditions associated with these morphologic abnormalities. This article therefore presents an approach for diagnosing esophageal disease on barium studies that emphasizes the radiographic and clinical features used to differentiate the underlying causes of disease and the diagnostic pitfalls associated with performing and interpreting these studies...
June 24, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28647671/use-of-oncogenic-driver-mutations-in-staging-of-multiple-primary-lung-carcinomas-a-single-center-experience
#2
Ramsey Asmar, Joshua R Sonett, Gopal Singh, Mahesh M Mansukhani, Alain C Borczuk
PURPOSE: The staging of multiple pulmonary adenocarcinomas requires the distinction of intrapulmonary metastasis (IPM) from multiple primary lung cancers (MPLC). This can be challenging in some patients, and the addition of data from oncogenic driver mutations in these tumors may be helpful in this determination. PROCEDURES: As a proof of principle, molecular driver results from primary tumors and their metastases in 45 patients were compared (cohort 1). Then, 69 patients with a total of 154 synchronous or metachronous lung carcinomas were identified, with pathologic findings compared to oncogenic driver mutation...
June 21, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28647304/phylogenies-of-symbiotic-genes-of-bradyrhizobium-symbionts-of-legumes-of-economic-and-environmental-importance-in-brazil-support-the-definition-of-the-new-symbiovars-pachyrhizi-and-sojae
#3
Jakeline Renata Marçon Delamuta, Pâmela Menna, Renan Augusto Ribeiro, Mariangela Hungria
Bradyrhizobium comprises most tropical symbiotic nitrogen-fixing strains, but the correlation between symbiotic and core genes with host specificity is still unclear. In this study, the phylogenies of the nodY/K and nifH genes of 45 Bradyrhizobium strains isolated from legumes of economic and environmental importance in Brazil (Arachis hypogaea, Acacia auriculiformis, Glycine max, Lespedeza striata, Lupinus albus, Stylosanthes sp. and Vigna unguiculata) were compared to 16S rRNA gene phylogeny and genetic diversity by rep-PCR...
June 7, 2017: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/28647122/effect-of-succinate-on-phosphate-solubilization-in-nitrogen-fixing-bacteria-harbouring-chick-pea-and-their-effect-on-plant-growth
#4
Bhagya Iyer, Mahendrapal Singh Rajput, Shalini Rajkumar
Diverse nitrogen fixing bacteria harbouring chick pea rhizosphere and root nodules were tested for multiple plant growth promoting traits like tricalcium phosphate (TCP) and rock phosphate (RP) solubilization, production of ammonia, indole 3-acetic acid, chitinase, phytase and alkaline phosphatase. Isolates belonged to diverse genus like Enterobacter, Acinetobacter, Erwinia, Pseudomonas, Rhizobium, Sinorhizobium, Ensifer, Klebsiella, etc. Most isolates solubilized TCP and RP along with the lowering of media pH, indicating acidification to be the chief mechanism behind this solubilization...
September 2017: Microbiological Research
https://www.readbyqxmd.com/read/28646602/comparison-of-acoustic-radiation-force-impulse-imaging-and-strain-elastography-in-differentiating-malignant-from-benign-thyroid-nodules
#5
Fengjuan Zhang, Xinming Zhao, Ruoling Han, Min Du, Ping Li, Xiaohui Ji
OBJECTIVES: This study aimed to evaluate the diagnostic value of acoustic radiation force impulse (ARFI) imaging and strain elastography in differentiating malignant from benign thyroid nodules. METHODS: This study included 128 patients (104 female and 24 male; mean age ± standard deviation, 48 ± 11 years; range, 23-76 years) with 152 pathologically proven thyroid nodules. Conventional sonography, strain ratio (SR) of strain elastography, virtual touch tissue imaging (VTI) grade, and virtual touch tissue quantification (shear wave velocity [SWV]) from ARFI imaging data were generated for each nodule...
June 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28645906/an-umbilical-bleeding-nodule
#6
Hemal Shah, Salvador Diaz-Cano, Lucia Pozo-Garcia
No abstract text is available yet for this article.
June 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28644254/sporadic-creutzfeldt-jakob-disease-with-unilateral-symptoms-in-the-setting-of-metastatic-renal-cell-carcinoma
#7
Kyle C Rossi, Christine M Stahl, Pengfei Zhang, John W Liang, Lara V Marcuse, Fred Lublin
INTRODUCTION: Although it is not rare for magnetic resonance imaging findings in Creutzfeldt-Jakob disease to be asymmetric, unilateral clinical syndromes are uncommonly reported and may confound diagnosis. In addition, neurological paraneoplastic syndromes are not common in renal cell carcinoma, though there are cases reported, often without an offending antibody isolated. CASE REPORT: A 66-year-old man was admitted with 1 month of left-sided numbness and "loss of control" of the left arm...
July 2017: Neurologist
https://www.readbyqxmd.com/read/28644148/5-azacytidine-promotes-invadopodia-formation-and-tumor-metastasis-through-the-upregulation-of-pi3k-in-ovarian-cancer-cells
#8
Dan Cao, Dan Li, Yong Huang, Yu Ma, Binglan Zhang, Chengjian Zhao, Senyi Deng, Min Luo, Tao Yin, Yu-Quan Wei, Wei Wang
The high incidence of metastasis accounts for most of the lethality of ovarian cancer. Invadopodia are small, specialized types of machinery that degrade the extracellular matrix and are thus involved in the invasion and metastasis of cancer cells. The formation of invadopodia is regulated by both genetic and epigenetic factors. However, the ways by which methylation/demethylation regulates the dynamics of invadopodia in ovarian cancer are largely unknown. In this study, we found that the inhibition of methylation by 5-AZ (5-Azacytidine) increased the formation of invadopodia and enhanced degradation of the extracellular matrix in ovarian cancer cells...
June 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28644106/viability-and-osteogenic-differentiation-of-human-periodontal-ligament-progenitor-cells-are-maintained-after-incubation-with-porphyromonas-gingivalis-protein-extract
#9
Mayra Laino Albiero, Rafael Nóbrega Stipp, Miki Taketomi Saito, Márcio Zaffalon Casati, Enilson Antonio Sallum, Francisco Humberto Nociti, Karina Gonzales Silvério
BACKGROUND: Porphyromonas gingivalis (Pg) is a major periodontal pathogen that contains immunostimulatory components. Periodontal ligament mesenchymal stem cells (PDLSCs) are responsible for regeneration of the periodontium that is lost due to periodontitis. Pathologic factors within the microenvironment that impair resident PDLSCs are not well understood. The present study investigated in vitro the effects of Pg protein extract (PgPE) on the biological properties of CD105-enriched PDL progenitor cell populations (PDL-CD105(+) cells)...
June 23, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28643953/the-entomopathogenic-fungus-nomuraea-rileyi-impairs-cellular-immunity-of-its-host-helicoverpa-armigera
#10
Ke Zhong, Zhan-Chi Liu, Jia-Lin Wang, Xu-Sheng Liu
In this study, we investigated the effect of the entomopathogenic fungus Nomuraea rileyi on Helicoverpa armigera cellular immune responses. Nomuraea rileyi infection had no effect on total hemocyte count (THC), but impaired hemocyte-mediated phagocytosis, nodulation, and encapsulation responses. Nomuraea rileyi infection led to a significant reduction in hemocyte spreading. An in vitro assay revealed that plasma from N. rileyi infected H. armigera larvae suppressed the spreading ability of hemocytes from naïve larvae...
June 23, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28643093/the-impact-of-trained-radiographers-as-concurrent-readers-on-performance-and-reading-time-of-experienced-radiologists-in-the-uk-lung-cancer-screening-ukls-trial
#11
Arjun Nair, Nicholas J Screaton, John A Holemans, Diane Jones, Leigh Clements, Bruce Barton, Natalie Gartland, Stephen W Duffy, David R Baldwin, John K Field, David M Hansell, Anand Devaraj
OBJECTIVES: To compare radiologists' performance reading CTs independently with their performance using radiographers as concurrent readers in lung cancer screening. METHODS: 369 consecutive baseline CTs performed for the UK Lung Cancer Screening (UKLS) trial were double-read by radiologists reading either independently or concurrently with a radiographer. In concurrent reading, the radiologist reviewed radiographer-identified nodules and then detected any additional nodules...
June 22, 2017: European Radiology
https://www.readbyqxmd.com/read/28642818/nivolumab-as-salvage-treatment-in-a-patient-with-hiv-related-relapsed-refractory-hodgkin-lymphoma-and-liver-failure-with-encephalopathy
#12
Jose D Sandoval-Sus, Francis Mogollon-Duffo, Ankita Patel, Nathan Visweshwar, Damian A Laber, Richard Kim, Michael V Jagal
BACKGROUND: We report the first case to our knowledge of a patient with relapsed/refractory classical hodgkin lymphoma and liver failure with encephalopathy along with human immunodeficiency virus/acquired immunodeficiency syndrome infection, successfully treated with nivolumab without major side effects and encouraging prolonged disease control. CASE PRESENTATION: In December 2015, at the time of the patient's progression from his Hodgkin lymphoma after fourth line treatment, he developed persistent fevers, abdominal distension, jaundice and worsening of his liver function tests...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28642791/efficacy-and-safety-of-ultrasound-guided-percutaneous-polidocanol-sclerotherapy-in-benign-cystic-thyroid-nodules-preliminary-results
#13
Xiaohua Gong, Qi Zhou, Fang Wang, Wenjun Wu, Xiaojun Chen
OBJECTIVE: To evaluate the efficacy and safety of percutaneous polidocanol injection (PPI) in treating cystic thyroid nodules. MATERIALS AND METHODS: A total of 158 cystic or predominantly cystic thyroid nodules (>80% cystic component) in 143 patients were evaluated. 114 patients with compressive symptoms or aesthetic complaints were offered PPI. 44 individuals without compressive symptoms and aesthetic complaints who were only followed up clinically were used as the control group...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28642544/resistin-promotes-the-abnormal-type-i-collagen-phenotype-of-subchondral-bone-in-obese-patients-with-end-stage-hip-osteoarthritis
#14
Ashleigh M Philp, Rebecca L Collier, Liam M Grover, Edward T Davis, Simon W Jones
The purpose of this study was to determine the effect of adiposity on the architecture and composition of hip OA subchondral bone, and to examine the pathological role of adipokines. Femoral heads were collected from normal-weight or over-weight/obese patients with hip OA. Structural parameters of subchondral bone were determined by MicroCT and type I collagen α1/α2 ratio was determined by SDS PAGE and by qRT-PCR in ex-vivo bone explants. The serum concentration of adipokines was determined by Luminex. The effect of resistin on primary OA osteoblasts was determined by analysis of Wnt pathway signal transduction, bone nodule formation, and osteoblast metabolic activity...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642375/acquired-resistance-to-corticotropin-therapy-in-nephrotic-syndrome-role-of-de-novo-neutralizing-antibody
#15
Pei Wang, Yan Zhang, Yu Wang, Andrew S Brem, Zhangsuo Liu, Rujun Gong
There is increasing evidence supporting the use of corticotropin as an alternative treatment of refractory proteinuric glomerulopathies. The efficacy of short-acting corticotropin, however, remains unknown and was tested here in an adolescent with steroid-dependent nephrotic syndrome caused by minimal change disease. After developing Cushing syndrome and recently being afflicted with severe cellulitis, the patient was weaned off all immunosuppressants, including corticosteroids. This resulted in a relapse of generalized anasarca, associated with massive proteinuria and hypoalbuminemia...
June 22, 2017: Pediatrics
https://www.readbyqxmd.com/read/28641877/-update-on-cutaneous-dirofilariasis
#16
M Benzaquen, E Marmottant, P Parola, P Berbis
Dirofilariasis is a worldwide zoonotic infection that rarely affects humans and is caused by filarial nematodes of the genus Diroflaria transmitted by mosquitoes. Cutaneous dirofilariasis, due to D. repens, presents as inflammatory lesions that develop into subcutaneous nodules. These clinical symptoms may be consistent with Wells' cellulitis. Diagnosis of dirofilariasis involves demonstration of the presence of the nematode during skin biopsy and identification of the worm through macroscopic, histological and PCR analysis...
June 19, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28641716/the-effects-of-pleural-plaques-on-longitudinal-lung-function-in-vermiculite-miners-of-libby-montana
#17
Kathleen A Clark, J Jay Flynn, Wilfried J J Karmaus, Lawrence C Mohr
BACKGROUND: This study was conducted to assess associations of pleural plaques (PP) and longitudinal lung function in vermiculite miners of Libby, Montana who are occupationally exposed to asbestos. High-resolution computed tomography (HRCT) was used to identify asbestos-related findings in former Libby vermiculite miners. We investigated annual lung function decline in miners with PP only and compared them to miners with normal HRCT findings. MATERIALS AND METHODS: HRCTs from 128 miners were categorized into the following 4 diagnostic groups: (1) normal computed tomography scan (n = 9); (2) PP only (n = 72); (3) PP and interstitial fibrosis (n = 26) and (4) additional HRCT abnormalities (n = 21) such as rounded atelectasis, diffuse pleural thickening, pleural effusions or pulmonary nodules or tumor >1cm in diameter...
June 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28641306/a-new-perspective-on-isotretinoin-treatment-of-hidradenitis-suppurativa-a-retrospective-chart-review-of-patient-outcomes
#18
Christina M Huang, Mark G Kirchhof
BACKGROUND: Hidradenitis suppurativa (HS) is a disease characterized by the development of painful, deep-seeded nodules and abscesses. Treatment guidelines include a combination of lifestyle, surgical, and medical interventions. Isotretinoin has not been included in the treatment guidelines due to the limited number of studies and conflicting reports of efficacy. OBJECTIVES: The purpose of this study is to evaluate the clinical response to isotretinoin in HS patients and to determine whether there is a particular patient population that may benefit more from this treatment...
June 23, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28640764/the-efficacy-of-massage-in-reducing-nodule-formation-after-poly-l-lactic-acid-administration-for-facial-volume-loss-a-randomized-evaluator-blinded-clinical-trial-erratum
#19
(no author information available yet)
No abstract text is available yet for this article.
July 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28640519/a-solitary-reddish-nodule-on-the-upper-back-of-a-middle-aged-woman
#20
Massimo Mascolo, Francesca Pagliuca, Claudia Costa, Pierpaolo Di Lorenzo, Massimiliano Scalvenzi, Stefania Staibano
No abstract text is available yet for this article.
June 22, 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
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