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https://www.readbyqxmd.com/read/28437259/utility-of-esophageal-mucosal-impedance-as-a-diagnostic-test-for-esophageal-disease
#1
Dhyanesh A Patel, Michael F Vaezi
PURPOSE OF REVIEW: The aim of this review is to summarize the use of direct mucosal impedance (MI) for the evaluation and management of esophageal diseases. RECENT FINDINGS: Esophageal multichannel intraluminal impedance with pH (MII-pH) monitoring has been considered the most sensitive test for gastroesophageal reflux disease (GERD), but recent studies have failed to establish impedance parameters that reliably predict treatment response to medical and surgical GERD therapies...
April 21, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28436177/limited-evidence-of-abnormal-intra-colonic-pressure-profiles-in-diverticular-disease-a-systematic-review
#2
REVIEW
R Jaung, J Robertson, G O'Grady, T Milne, D Rowbotham, I P Bissett
AIM: Abnormal colonic pressure profiles and high intraluminal pressures are postulated to contribute to the formation of sigmoid colon diverticulosis and the pathophysiology of diverticular disease (DD). This study aimed to review evidence for abnormal colonic pressure profiles in diverticulosis. METHOD: All published studies investigating colonic pressure in patients with diverticulosis were searched in three databases (MEDLINE, EMBASE, SCOPUS). No language restrictions were applied...
April 24, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28435084/optimization-of-behavioural-tests-for-the-prediction-of-outcomes-in-mouse-models-of-focal-middle-cerebral-artery-occlusion
#3
Zhuoyu Wen, Xiaomeng Xu, Lili Xu, Lian Yang, Xiaohui Xu, Juehu A Zhu, Li Wu, Yongjun Jiang, Xinfeng Liu
Intraluminal middle cerebral artery occlusion (MCAO) is the most widely used model of stroke. We aimed to predict the outcome of MCAO using a combination of fine behavioural tests for the prediction of unsuccessful surgery in mice leading to no infarction, haemorrhage and unexpected death. MCAO was performed on adult mice under the guidance of laser-Doppler flowmetry (LDF) to warrant a decrease in regional cerebral blood flow (rCBF) in the MCA territory. Four outcomes of MCAO were defined according to histological analysis: infarction, no infarction, haemorrhage and unexpected death (death within 24 h post-surgery)...
April 20, 2017: Brain Research
https://www.readbyqxmd.com/read/28431236/unicystic-ameloblastoma-revisited-comparison-of-massachusetts-general-hospital-outcomes-with-original-robinson-and-martinez-report
#4
Anne-Frédérique Chouinard, Zachary S Peacock, William C Faquin, Leonard B Kaban
PURPOSE: Robinson and Martinez established unicystic ameloblastoma (UA) as a distinct pathologic entity in 1977. By use of their original description, the aim of this study was to compare the clinical presentation and outcomes of UA treated at Massachusetts General Hospital (MGH) with outcomes reported in the original article. PATIENTS AND METHODS: This was a retrospective cohort study of MGH patients treated for UA during a 15-year period. Patients were included if they had a confirmed clinical and histologic diagnosis of UA...
March 27, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28430609/characterization-of-pressure-mediated-vascular-tone-in-resistance-arteries-from-bile-duct-ligated-rats
#5
Ravirajsinh N Jadeja, Menaka C Thounaojam, Sandeep Khurana
In cirrhosis, changes in pressure-mediated vascular tone, a key determinant of systemic vascular resistance (SVR), are unknown. To address this gap in knowledge, we assessed ex vivo dynamics of pressurized mesenteric resistance arteries (diameter ~ 260 μm) from bile duct-ligated (BDL) and sham-operated (SHAM) rats and determined the underlying mechanisms. At isobaric intraluminal pressure (70 mmHg) as well as with step-wise increase in pressure (10-110 mmHg), arteries from SHAM-rats constricted more than BDL-rats, and had reduced luminal area...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28426462/high-resolution-esophageal-manometry-interpretation-in-clinical-practice
#6
Rena Yadlapati
PURPOSE OF REVIEW: Esophageal high-resolution manometry (HRM) is the current state-of-the-art diagnostic tool to evaluate esophageal motility patterns and, as such, is widely adopted in clinical practice. This article will review the interpretation of esophageal HRM in clinical practice. RECENT FINDINGS: HRM uses a high-resolution catheter to transmit intraluminal pressure data that are subsequently converted into dynamic esophageal pressure topography (EPT) plots...
April 19, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28423094/complications-of-chronic-necrotizing-pulmonary-aspergillosis-review-of-published-case-reports
#7
Aleksandra Barac, Tatjana Adzic Vukicevic, Aleksandra Dudvarski Ilic, Salvatore Rubino, Vladimir Zugic, Goran Stevanovic
Chronic necrotizing pulmonary aspergillosis (CNPA), a form of chronic pulmonary aspergillosis (CPA), affects immunocompetent or mildly immunocompromised persons with underlying pulmonary disease. These conditions are associated with high morbidity and mortality and often require long-term antifungal treatment. The long-term prognosis for patients with CNPA and the potential complications of CNPA have not been well documented. The aim of this study was to review published papers that report cases of CNPA complications and to highlight risk factors for development of CNPA...
April 13, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28418214/colonic-gas-homeostasis-mechanisms-of-adaptation-following-host-g904-galactooligosaccharide-use-in-humans
#8
M Mego, A Accarino, G Tzortzis, J Vulevic, G Gibson, F Guarner, F Azpiroz
BACKGROUND: We have shown that a galactooligosaccharide prebiotic administration (HOST-G904) initially increased intestinal gas production and this increase declined back to baseline after 2 week administration. Our aim was to determine the mechanism of microbiota adaptation; i.e., to determine whether the net reduction is due to decreased overall production or increased gas consumption. METHODS: In 10 healthy subjects, intestinal gas production and intraluminal disposal was measured before, at the beginning and after 2 week of HOST-G904 prebiotic administration...
April 18, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28417005/reversibility-of-vasalgel%C3%A2-male-contraceptive-in-a-rabbit-model
#9
Donald Waller, David Bolick, Elaine Lissner, Christopher Premanandan, Gary Gamerman
BACKGROUND: Development of a non-hormonal long-acting reversible contraceptive for men could have a significant impact on reducing unintended pregnancies. Vasalgel™ is a high molecular weight polymer consisting of styrene-alt-maleic acid (SMA) dissolved in dimethyl sulfoxide being developed as a reversible male contraceptive device. It forms a hydrogel when implanted into the vasa deferentia, which prevents the passage of sperm. Previous studies in the rabbit have proven its efficacy, durability and rapid onset...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28416559/a-novel-non-antibiotic-nitroglycerin-based-catheter-lock-solution-for-the-prevention-of-intraluminal-central-venous-catheter-infections-in-cancer-patients
#10
Anne-Marie Chaftari, Ray Hachem, Ariel Szvalb, Mahnaz Taremi, Bruno Granwehr, George Michael Viola, Amin Sapna, Andrew Assaf, Numan Yazan, Pankil Shah, Ketevan Gasitashvili, Elizabeth Natividad, Ying Jiang, Rebecca Slack, Ruth Reitzel, Joel Rosenblatt, Elie Mouhayar, Issam Raad
Background: For long-term central lines (CL), the lumen is the major source of central line associated bloodstream infections (CLABSI). Current standard of care for maintaining catheter patency includes flushing the CL with saline or heparin. Neither agent has any antimicrobial activity. Furthermore heparin may enhance staphylococcal biofilm formation. We evaluated the safety and efficacy of a novel non-antibiotic catheter lock solution for the prevention of CLABSI.Patients and Methods: Between November 2015, and February 2016, we enrolled 60 patients with hematologic malignancies who had peripherally inserted central catheter (PICC) to receive the study lock solution...
April 17, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28414135/gastrointestinal-behavior-of-itraconazole-in-humans-part-1-supersaturation-from-a-solid-dispersion-and-a-cyclodextrin-based-solution
#11
Joachim Brouwers, Sophie Geboers, Raf Mols, Jan Tack, Patrick Augustijns
This study evaluated the fasted state gastrointestinal behavior of the lipophilic drug itraconazole, orally administered to healthy volunteers as either a solid dispersion (Sporanox(®) capsules) or a cyclodextrin-based solution (Sporanox(®) solution). Following intake of the drug products, gastric and duodenal fluids were aspirated and analyzed for itraconazole concentration, total content and solubilizing capacity. Release of itraconazole from the solid dispersion generated high and metastable supersaturated levels in the stomach, but the dissolved fraction in the duodenum remained extremely low (median 2...
April 13, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28413196/the-molecular-cues-regulating-immune-cell-trafficking
#12
REVIEW
Akira Takeda, Naoko Sasaki, Masayuki Miyasaka
Lymphocyte recirculation between the blood and the lymphoid/non-lymphoid tissues is an essential homeostatic mechanism that regulates humoral and cellular immune responses in vivo. This system promotes the encounter of naïve T and B cells with their specific cognate antigen presented by dendritic cells, and with the regulatory cells with which they need to interact to initiate, maintain, and terminate immune responses. The constitutive lymphocyte trafficking is mediated by particular types of blood vessels, including the high endothelial venules (HEVs) in lymph nodes and Peyer's patches, and the flat-walled venules in non-lymphoid tissues including the skin...
2017: Proceedings of the Japan Academy. Series B, Physical and Biological Sciences
https://www.readbyqxmd.com/read/28412554/prompt-peripheral-nerve-regeneration-induced-by-a-hierarchically-aligned-fibrin-nanofiber-hydrogel
#13
Jinrong Du, Jianheng Liu, Shenglian Yao, Haiquan Mao, Jiang Peng, Xun Sun, Zheng Cao, Yongdong Yang, Bo Xiao, Yiguo Wang, Peifu Tang, Xiumei Wang
Fibrin plays a crucial role in peripheral nerve regeneration, which could occur spontaneously in the format of longitudinally oriented fibrin cables during the initial stage of nerve regeneration. This fibrin cable can direct migration and proliferation of Schwann cells and axonal regrowth, which is very important to nerve regeneration. In the present study, we prepared a three-dimensional hierarchically aligned fibrin nanofiber hydrogel (AFG) through electrospinning and molecular self-assembly to resemble the architecture and biological function of the native fibrin cable...
April 12, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28410789/duodenogastric-regurgitation-in-hepaticoduodenostomy-after-excision-of-congenital-biliary-dilatation-choledochal-cyst
#14
Yoshinori Hamada, Hiroshi Hamada, Takeshi Shirai, Yusuke Nakamura, Tatsuma Sakaguchi, Hiroaki Yanagimoto, Kentaro Inoue, Masanori Kon
PURPOSE: We examined the clinical significance of duodenogastric regurgitation (DGR) as a late complication in the long-term follow-up after hepaticoduodenostomy (HD) as a reconstruction surgery for congenital biliary dilatation (CBD). METHODS: Seventeen patients with CBD were retrospectively analyzed for late complications (mean follow-up, 16.8 years). All patients had undergone total resection of the extrahepatic bile duct followed by HD. DGR was identified using endoscopic examination, intraluminal bile monitoring, and liver scanning...
April 5, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28410706/conventional-tbna-experience-over-a-10-year-period-diagnostic-yield-and-associated-limitations-in-a-tertiary-care-government-set-up
#15
Varinder Saini, Kranti Garg, Uma Handa, Ritisha Bhatt
INTRODUCTION: It is challenging for pulmonologists to sample mediastinal lymph nodes or some endobronchial lesions because of safety concerns. C-TBNA (conventional transbronchial needle aspiration) is a procedure to sample such sites, but is underutilized. We present a retrospective review of patients subjected to C-TBNA through fibre-optic bronchoscopy over a 10-year period. MATERIALS AND METHODS: Year-wise statistics of C-TBNA was reviewed and results were analyzed with regard to sampling sites and type of intraluminal lesions encountered, diagnosis made and their correlation with sampling sites, sex and age...
April 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28406703/chronic-administration-of-quercetin-induces-biomechanical-and-pharmacological-remodeling-in-the-rat-coronary-arteries
#16
A Monori-Kiss, F Kiss, J M Restifo, E Monos, G L Nadasy
Acute dilation brought about by the dietary flavonoid quercetin in coronary arterioles has been described earlier, but no information is available on its chronic effects. Male Wistar rats (body weight about 190 g) were divided to two groups: the quercetin-treated group (n=22) had quercetin supplementation of approximately 30 mg/kg/day, whereas the control group (n=20) had none. After eight weeks of treatment, intramural coronary arterioles with identical passive diameters (178+/-14 and 171+/-9 microm) were prepared and their biomechanics and pharmacological reactivities were tested using pressure arteriography ex vivo...
April 12, 2017: Physiological Research
https://www.readbyqxmd.com/read/28401029/iatrogenic-central-retinal-artery-occlusion-after-carotid-body-tumor-embolization-and-excision
#17
Carlos M Rangel, Sergio Jaramillo, Clara L Varón, Angélica M Prada
Objective: To report a case of iatrogenic central retinal artery occlusion after embolization and surgical resection of carotid body paraganglioma. Methods: Case report Results: One adult female patient presented with persistent unilateral visual loss after embolization with Embosphere(®) and Contour(®) microparticles of carotid body tumor. Fluorescein angiography revealed intraluminal microspheres in the central retinal artery ramifications. OCT revealed intraretinal spherical, hyporeflective particles with posterior shadowing...
2017: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/28397565/local-intraluminal-irrigation-with-argatroban-during-free-flap-repair-in-a-patient-with-heparin-induced-thrombocytopenia
#18
David Macias, Daniel I Kwon, Paul C Walker, Nathaniel R Peterson
OBJECTIVE: This study describes a case of a successful free flap repair using argatroban for local intraluminal irrigation as a substitute to heparin in a patient with heparin-induced thrombocytopenia. METHODS: Case report and review of literature. RESULTS: The patient had an uneventful postoperative course, and the free flap survived without complications. CONCLUSIONS: The use of argatroban during microvascular surgery is likely to be safe and simple and may be effective in preventing micro-thrombotic complications during microvascular surgery, and it should be considered as an alternative to heparinized saline for local intraluminal irrigation...
May 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28395327/developmental-expression-of-the-dynamin-family-of-mechanoenzymes-in-the-mouse-epididymis%C3%A2
#19
Wei Zhou, Geoffry N De Iuliis, Adrian P Turner, Andrew T Reid, Amanda L Anderson, Adam McCluskey, Eileen A McLaughlin, Brett Nixon
The mammalian epididymis is an exceptionally long ductal system tasked with the provision of one of the most complex intraluminal fluids found in any exocrine gland. This specialized milieu is continuously modified by the combined secretory and absorptive of the surrounding epithelium and thus finely tuned for its essential roles in promoting sperm maturation and storage. While considerable effort has been focused on defining the composition of the epididymal fluid, relatively less is known about the intracellular trafficking machinery that regulates this luminal environment...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28394551/mesonephric-adenocarcinoma-of-endocervix-with-lobular-mesonephric-hyperplasia-case-report
#20
Mario Puljiz, Damir Danolić, Lucija Kostić, Ilija Alvir, Darko Tomica, Ivica Mamić, Ivana Vlastelica Munivrana, Marko Puljiz, Danko Velimir Vrdoljak, Melita Perić Balja
Mesonephric adenocarcinoma is a rare variant of cervical adenocarcinoma. We present a case of mesonephric adenocarcinoma of endocervix with cervical and vaginal lobular mesonephric hyperplasia in a 57-year-old woman. Vaginal bleeding persisting for 12 months was the only symptom. Histopathologic findings and characteristic immunophenotype are crucial for the diagnosis. The tumor was composed of papillary formation with a central fi brovascular stroma, villoglandular and densely compact tubular structures containing intraluminal eosinophilic secretion, and coated with one or more rows of cylindrical atypical epithelial cells...
June 2016: Acta Clinica Croatica
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