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https://www.readbyqxmd.com/read/28723734/transcanalicular-diode-laser-assisted-revision-surgery-for-failed-dacryocystorhinostomy-with-or-without-distal-or-common-canalicular-obstruction
#1
Je Moon Yoon, Seung Wan Nam, Kyung In Woo, Yoon-Duck Kim
PURPOSE: To report the outcomes of transcanalicular diode laser-assisted revision surgery for failed dacryocystorhinostomy with/without distal or common canalicular obstruction. METHODS: The medical records and recorded videos of consecutive transcanalicular diode laser-assisted revision surgeries performed for failed dacryocystorhinostomy between May 2011 and May 2015 were reviewed. Cases of unavailability of video and cases lost to follow up after surgery were excluded from the study...
July 18, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28713897/expression-of-irak%C3%A2-3-is-associated-with-colitis%C3%A2-associated-tumorigenesis-in-mice
#2
Dingting Xu, Hanyun Zhang, Xiaoying Wang, Yan Chen
Interleukin‑1 receptor‑associated kinase‑3 (IRAK‑3) is a negative regulator in Toll‑like receptor (TLR) pathways. The present study investigated the importance of IRAK‑3 in a mouse model of chemically‑induced colitis‑associated tumorigenesis. The colitis‑associated tumorigenesis was induced in ICR mice by the administration of 1,2‑dimethyl hydrazine (DMH) and dextran sodium sulfate (DSS), termed the DMH + DSS group. In the DSS group, mice were administered with DSS; in the DMH group, mice were injected with DMH; in the control group, mice were injected with physiological saline...
July 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28709949/pulmonary-hypoplasia
#3
REVIEW
C Michael Cotten
To survive the transition to extrauterine life, newborn infants must have lungs that provide an adequate surface area and volume to allow for gas exchange. The dynamic activities of fetal breathing movements and accumulation of lung luminal fluid are key to fetal lung development throughout the various phases of lung development and growth, first by branching morphogenesis, and later by septation. Because effective gas exchange is essential to survival, pulmonary hypoplasia is among the leading findings on autopsies of children dying in the newborn period...
July 11, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28705661/canaliculorhinostomy-indications-and-surgical-results
#4
Jung Hye Lee, Stephanie Ming Young, Yoon-Duck Kim, Kyung In Woo, Jung-Hoon Yum
PURPOSE: To report the surgical results of canaliculorhinostomy for patients with distal canalicular obstruction and lacking a structurally functional lacrimal sac who would otherwise require a conjunctivodacryocystorhinostomy(CDCR) with Jones tube placement. DESIGN: Retrospective observational case series. METHODS: • Setting: Single tertiary institution. • Period: November 1994 to June 2011. • Patient Population: 16 patients with canalicular obstruction at or beyond 8 mm from the punctum, with an absent or unidentifiable lacrimal sac...
July 10, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28702480/dataset-on-transcriptional-profiles-and-the-developmental-characteristics-of-pdgfr%C3%AE-expressing-lung-fibroblasts
#5
Mehari Endale, Shawn Ahlfeld, Erik Bao, Xiaoting Chen, Jenna Green, Zach Bess, Matthew Weirauch, Yan Xu, Anne Karina Perl
The following data are derived from key stages of acinar lung development and define the developmental role of lung interstitial fibroblasts expressing platelet-derived growth factor alpha (PDGFRα). This dataset is related to the research article entitled "Temporal, spatial, and phenotypical changes of PDGFRα expressing fibroblasts during late lung development" (Endale et al., 2017) [1]. At E16.5 (canalicular), E18.5 (saccular), P7 (early alveolar) and P28 (late alveolar), PDGFRα(GFP) mice, in conjunction with immunohistochemical markers, were utilized to define the spatiotemporal relationship of PDGFRα(+) fibroblasts to endothelial, stromal and epithelial cells in both the proximal and distal acinar lung...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28696161/comparison-of-normal-facial-nerve-enhancement-at-3t-mri-using-gadobutrol-and-gadopentetate-dimeglumine
#6
Rupa Radhakrishnan, Shamima Ahmed, Joshua Cole Tilden, Humberto Morales
Background and purpose The facial nerve is unique among cranial nerves in demonstrating normal enhancement of particular segments. The effect of varying T1 relaxivities of gadolinium-based contrast agents on facial nerve enhancement is unclear. In this study, we assess differences in normal facial nerve enhancement with two different gadolinium-based contrast agents, gadobutrol and gadopentetate dimeglumine. In addition, we evaluate differences in facial nerve enhancement with spin-echo (SE) T1 versus 3D inversion recovery prepared fast spoiled gradient-echo (FSPGR) post-contrast sequences...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28683481/-recanalization-of-lacrimal-duct-stenosis-by-laserdacryoplasty-using-a-diode-laser-comparison-of-success-rates-using-an-erbium%C3%A2-%C3%A2-yag-laser
#7
Ludwig Stock, Ralf Ungerechts, Karl-Heinz Emmerich
Background In a retrospective study, the success rates of laserdacryoplasty using a diode laser were defined and compared to success rates using an erbium : YAG laser. Using a diode laser at a wave length of 980 nm, thermal destruction of tissue leads to recanalization. Using an erbium : YAG laser at a wave length of 2940 nm, recanalization of punctual stenosis is achieved by formation of a cavitation bubble in a closed system. Materials and Methods 94 patients (64 women, 30 men, mean age 60.8 years) with 107 absolute lacrimal duct stenoses who were treated by laserdacryoplasty using a diode laser were included in a retrospective study...
July 6, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28666969/vitamin-d-regulates-osteocyte-survival-and-perilacunar-remodeling-in-human-and-murine-bone
#8
Tim Rolvien, Matthias Krause, Anke Jeschke, Timur Yorgan, Klaus Püschel, Thorsten Schinke, Björn Busse, Marie B Demay, Michael Amling
Osteocytes are the most abundant bone cells and are highly regulated by external stimuli. Vitamin D and osteocytes cooperatively regulate bone remodeling as well as phosphate and calcium homeostasis. However, it is unclear if vitamin D regulates osteocyte number, connectivity or size in the setting of altered bone formation or impaired mineralization. Sixty iliac crest biopsies of patients with varying vitamin D levels were examined to analyze osteocyte number, osteocyte connectivity and osteocyte viability using high-resolution imaging...
June 27, 2017: Bone
https://www.readbyqxmd.com/read/28666032/pulmonary-vascular-changes-in-extremely-preterm-sheep-after-intra-amniotic-exposure-to-ureaplasma-parvum-and-lipopolysaccharide
#9
Monique G M Willems, Matthew W Kemp, Laura A Fast, Nick M M Wagemaker, Leon E W Janssen, John P Newnham, Matt S Payne, Owen B Spiller, Suhas G Kallapur, Alan H Jobe, Tammo Delhaas, Boris W Kramer, Tim G A M Wolfs
BACKGROUND: Chorioamnionitis can induce pulmonary inflammation and promote bronchopulmonary dysplasia development, distinguished by alveolar simplification and impaired vascular growth. Chorioamnionitis is more common during the extremely preterm canalicular lung stage (crucial for vascular development); and increases the risk for subsequent sepsis. We hypothesized that single/combined exposure to chronic and/or acute inflammation induces pulmonary inflammatory responses and vascular changes...
2017: PloS One
https://www.readbyqxmd.com/read/28663263/how-common-is-signal-intensity-increase-in-optic-nerve-segments-on-3d-double-inversion-recovery-sequences-in-visually-asymptomatic-patients-with-multiple-sclerosis
#10
T Sartoretti, E Sartoretti, S Rauch, C Binkert, M Wyss, D Czell, S Sartoretti-Schefer
BACKGROUND AND PURPOSE: In postmortem studies, subclinical optic nerve demyelination is very common in patients with MS but radiologic demonstration is difficult and mainly based on STIR T2WI. Our aim was to evaluate 3D double inversion recovery MR imaging for the detection of subclinical demyelinating lesions within optic nerve segments. MATERIALS AND METHODS: The signal intensities in 4 different optic nerve segments (ie, retrobulbar, canalicular, prechiasmatic, and chiasm) were evaluated on 3D double inversion recovery MR imaging in 95 patients with MS without visual symptoms within the past 3 years and in 50 patients without optic nerve pathology...
June 29, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28645010/a-rare-case-of-male-pseudohermaphroditism-persistent-mullerian-duct-syndrome-with-transverse-testicular-ectopia-case-report-and-review-of-literature
#11
Aashish Rajesh, Mohammed Farooq
INTRODUCTION: Persistent Mullerian duct syndrome (PMDS) is a rare type of male pseudohermaphroditism. Transverse testicular ectopia (TTE) is characterized by one testis moving to the opposite side and both testes traversing the same inguinal canal. CASE PRESENTATION: An 11-month-old boy presented with bilateral cryptorchidism. The left testis was not palpable; the right testis was canalicular with a right inguinal hernia. Ultrasound showed both testes located in the right inguinal canal...
June 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28641034/imaging-of-proximal-lacrimal-system-with-time-domain-anterior-segment-optical-coherence-tomography-in-asian-indian-population
#12
Swati Singh, Arnav Ghosh, Suryasnata Rath
This article reports proximal lacrimal system parameters using Anterior Segment Optical Coherence Tomography (ASOCT-Visante) in an apparently normal Asian Indian population with assessment of any correlation between tear meniscus height and punctal diameter. This was a prospectively designed observational study that included healthy adults, who volunteered for optical coherence tomography imaging (OCT) of their proximal lacrimal system. Time domain ASOCT (Visante) images of the punctum and proximal canaliculus were captured using the high resolution corneal scan protocol...
June 22, 2017: Orbit
https://www.readbyqxmd.com/read/28641033/evaluation-of-planned-bicanalicular-nasolacrimal-tube-retention-in-treating-punctal-stenosis-or-occlusion-secondary-to-trachoma
#13
Rania A Ahmed, Ahmed M Kamal, Mohamed A Zayed
This article evaluates retaining bicanalicular silicone nasolacrimal tube in patients susceptible to restenosis after punctoplasty. Sixty-nine eyes (38 patients) suffering from epiphora due to stenosis or occlusion of both punctae were included in this prospective study. All had 3 snip punctoplasty and bicanalicular silicone nasolacrimal duct insertion. Cases associated with proximal canalicular stenosis or obstructions were excluded. Tolerance to tube presence until the time of loss or removal was evaluated using a score (0 to 2)...
June 22, 2017: Orbit
https://www.readbyqxmd.com/read/28634191/cd36-knockout-mice-are-protected-against-lithogenic-diet-induced-gallstones
#14
Yan Xie, Vincenza Cifarelli, Terri Pietka, Elizabeth P Newberry, Susan M Kennedy, Amin Khalifeh-Soltani, Robin Clugston, Kamran Atabai, Nada A Abumrad, Nicholas O Davidson
The scavenger receptor and multiligand transporter CD36 functions to promote cellular free fatty acid uptake and regulates aspects of both hepatic and intestinal cholesterol metabolism. However, the role of CD36 in regulating canalicular and biliary cholesterol transport and secretion is unknown. Here we show that germline Cd36 knockout mice are protected against lithogenic diet (LD) induced gallstones compared to congenic (C57BL6/J) controls. Cd36 knockout mice crossed into congenic L-Fabp knockout mice (DKO mice) demonstrated protection against LD induced gallstones, reversing the susceptibility phenotype observed in L-Fabp knockout mice...
June 20, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28612126/immaturity-of-bile-canalicular-ductule-networks-in-the-future-liver-remnant-while-associating-liver-partition-and-portal-vein-occlusion-for-staged-hepatectomy-alpps
#15
Kenichi Matsuo, Yukihiko Hiroshima, Kazuto Yamazaki, Kohei Kasahara, Yutaro Kikuchi, Daisuke Kawaguchi, Takashi Murakami, Yasuo Ishida, Kuniya Tanaka
BACKGROUND: We studied histologic changes of bile canalicular-ductule networks in the future liver remnant (FLR) while associating liver partition and portal vein occlusion for staged hepatectomy (ALPPS), since little is known about regeneration of these networks during the relatively short interval between procedures in ALPPS. METHODS: Bile canalicular-ductule networks were examined in specimens from eight patients treated with ALPPS and six patients undergoing hepatectomy following portal vein embolization (PVE)...
June 13, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28611441/label-free-imaging-of-bone-multiscale-porosity-and-interfaces-using-third-harmonic-generation-microscopy
#16
Rachel Genthial, Emmanuel Beaurepaire, Marie-Claire Schanne-Klein, Françoise Peyrin, Delphine Farlay, Cécile Olivier, Yohann Bala, Georges Boivin, Jean-Claude Vial, Delphine Débarre, Aurélien Gourrier
Interfaces provide the structural basis of essential bone functions. In the hierarchical structure of bone tissue, heterogeneities such as porosity or boundaries are found at scales ranging from nanometers to millimeters, all of which contributing to macroscopic properties. To date, however, the complexity or limitations of currently used imaging methods restrict our understanding of this functional integration. Here we address this issue using label-free third-harmonic generation (THG) microscopy. We find that the porous lacuno-canalicular network (LCN), revealing the geometry of osteocytes in the bone matrix, can be directly visualized in 3D with submicron precision over millimetric fields of view compatible with histology...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28590786/liver-fibrosis-associated-with-crigler-najjar-syndrome-in-a-compound-heterozygote
#17
Cynthia R Fata, Lynette A Gillis, M Cristina Pacheco
Crigler-Najjar syndrome is a hereditary unconjugated hyperbilirubinemia. Two forms of the disease are recognized. Type I is more severe and results in kernicterus if left untreated, and Type II is less severe and responds to phenobarbital. While Crigler-Najjar syndrome is thought by many to have normal liver histology, few reports of the liver pathology exist. Herein, we present a 19-year-old patient with Crigler-Najjar who underwent liver transplantation. The liver showed marked canalicular cholestasis with portal and variable, delicate, bridging fibrosis...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28582376/spontaneous-canalicular-plug-erosion-after-punctal-plug-placement
#18
Charudutt Kalamkar, Amrita Mukherjee, Anoop Chandak
No abstract text is available yet for this article.
June 2, 2017: Cornea
https://www.readbyqxmd.com/read/28576205/incision-sparing-management-of-canaliculitis-an-efficacious-alternative-to-surgical-management
#19
David Zhiwei Law, E-Shawn Goh
OBJECTIVE: The aim of this study was to describe the outcomes of conservative (punctal dilation, manual expression, microcurettage, and canalicular irrigation with antibiotics) and surgical (punctoplasty) modalities for the management of canaliculitis in an Asian population. METHODS: The medical records of 11 consecutive patients (12 eyes) presenting with canaliculitis to one surgeon from August 2010 to January 2014 were reviewed. The clinical presentation, findings, management, microbiology, and treatment outcomes were studied...
June 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28552422/8-methoxypsoralen-disrupts-mdr3-mediated-phospholipids-efflux-and-bile-acid-homeostasis-and-its-relevance-to-hepatotoxicity
#20
Guolin Zhao, Dengqiu Xu, Ziqiao Yuan, Zhenzhou Jiang, Wang Zhou, Zhijian Li, Mengyue Yin, Zhixing Zhou, Luyong Zhang, Tao Wang
Since its discovery in 1987, multidrug resistance 3 P-glycoprotein (MDR3) had recognized to play a crucial role in the translocation of phospholipids from the inner to outer leaflets of bile canalicular membranes. An increasing number of reports suggest that drug-mediated functional disruption of MDR3 is responsible for drug-induced cholestasis. 8-Methoxypsoralen (8-MOP) is used clinically to treat psoriasis, vitiligo and other skin disorders. However, psoralens safety for long-term use is a concern. In the current study, we evaluate 8-MOP's potential hepatotoxicity and effects on bile formation...
May 24, 2017: Toxicology
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