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https://www.readbyqxmd.com/read/28636260/lichenoid-keratosis-is-frequently-misdiagnosed-as-basal-cell-carcinoma
#1
D Maor, C Ondhia, L L Yu, J J Chan
Lichenoid keratosis (LK), also known as benign lichenoid keratosis or lichen planus-like keratosis, is a solitary, pink to red-brown scaly plaque representing a host immunological response to a variety of precursor lesions. LK is often misdiagnosed as a dermatological malignancy owing to its clinical resemblance to basal cell carcinoma (BCC) or Bowen disease. We performed a retrospective analysis of the pathology records of a series of LK lesions with reference to the demographic features and accuracy of clinical diagnosis...
June 21, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28636087/extended-inferior-antrostomy-for-maxillary-sinus-surgery
#2
Justin Michel, Thomas Radulesco, Martin Penicaud, Patrick Dessi
Functional endoscopic sinus surgery (FESS) has considerably evolved over the past 20 years while minimally-invasive surgery also applies to sinus procedures. Development of new technologies combined with better knowledge of risks has allowed surgeons to achieve improved results in their FESS indications. One of the most difficult areas to visualize using the exclusive endoscopic approach is still the anterior recess of the maxillary sinus. Hence, external approaches, such as the Caldwell-Luc procedure, are still used by many surgeons to ensure visual control of this area in diseases such as fungal balls, mucoceles, inverted papilloma and other tumors...
June 21, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28636018/fluorescence-lifetime-microscopy-reveals-the-biologically-related-photophysical-heterogeneity-of-oxyblepharismin-in-light-adapted-blue-blepharisma-japonicum-cells
#3
G Checcucci, B Storti, F Ghetti, G Signore, R Bizzarri
The step-up photophobic response of the heterotrich ciliate Blepharisma japonicum is mediated by a hypericinic pigment, blepharismin, which is not present in any of the known six families of photoreceptors, namely rhodopsins, phytochromes, xanthopsins, cryptochromes, phototropins, and BLUF proteins. Upon irradiation, native cells become light-adapted (blue) by converting blepharismin into the photochemically stable oxyblepharismin (OxyBP). So far, OxyBP has been investigated mainly from a photophysical point of view in vitro, either alone or complexed with proteins...
June 21, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28635968/sex-biased-dispersal-creates-spatial-genetic-structure-in-a-parthenogenetic-ant-with-a-dependent-lineage-reproductive-system
#4
A Kuhn, D Bauman, H Darras, S Aron
Reproduction and dispersal are key aspects of species life history that influence spatial genetic structure in populations. Several ant species in the genus Cataglyphis have evolved a unique breeding system in which new reproductives (that is, queens and males) are produced asexually by parthenogenesis; in contrast, non-reproductives (that is, workers) are produced via sexual reproduction by mates from distinct genetic lineages. We investigated how these two coexisting reproductive methods affect population-level spatial genetic structure using the ant Cataglyphis mauritanica as a model...
June 21, 2017: Heredity
https://www.readbyqxmd.com/read/28634745/prolactin-function-and-putative-expression-in-the-brain
#5
REVIEW
Erika Alejandra Cabrera-Reyes, Ofelia Limón-Morales, Nadia Alejandra Rivero-Segura, Ignacio Camacho-Arroyo, Marco Cerbón
INTRODUCTION: Prolactin is a peptide hormone mainly synthetized and secreted by the anterior pituitary gland, but also by extrapituitary tissues, such as mammary gland, decidua, prostate, skin, and possibly the brain. Similarly, prolactin receptor is expressed in the pituitary gland, many peripheral tissues, and in contrast to prolactin, its receptor has been consistently detected in several brain regions, such as cerebral cortex, olfactory bulb, hypothalamus, hippocampus, amygdala, among others...
June 20, 2017: Endocrine
https://www.readbyqxmd.com/read/28634621/role-of-mri-in-predicting-meniscal-tear-reparability
#6
Paolo Florent Felisaz, Francesco Alessandrino, Simone Perelli, Giacomo Zanon, Francesco Benazzo, Fabrizio Calliada, Luigi Sammarchi
OBJECTIVE: To elucidate the role of MRI in predicting meniscal tear reparability according to tear type and location in relation to vascular zones. MATERIALS AND METHODS: In this retrospective study, two readers evaluated 79 pre-surgical MRIs of meniscal tears arthroscopically treated with meniscectomy or meniscal repair. Tears were classified according to type into vertical, horizontal, radial, complex, flaps and bucket handle and were considered reparable if the distance measured from the tear to the menisco-capsular junction was less than or equal to 5 mm...
June 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28634595/role-of-repeat-muscle-compartment-pressure-measurements-in-chronic-exertional-compartment-syndrome-of-the-lower-leg
#7
Aniek P M van Zantvoort, Johan A de Bruijn, Michiel B Winkes, Adwin R Hoogeveen, Joep A W Teijink, Marc R Scheltinga
BACKGROUND: The diagnostic gold standard for diagnosing chronic exertional compartment syndrome (CECS) is a dynamic intracompartmental pressure (ICP) measurement of the muscle. The potential role of a repeat ICP (re-ICP) measurement in patients with persistent lower leg symptoms after surgical decompression or with ongoing symptoms after an earlier normal ICP is unknown. PURPOSE: To study whether re-ICP measurements in patients with persistent CECS-like symptoms of the lower leg may contribute to the diagnosis of CECS after both surgical decompression and a previously normal ICP measurement...
June 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28634593/carcinoid-heart-disease-starting-from-heart-failure
#8
Nicole Bertin, Serena Favretto, Francesco Pelizzo, Lucio Mos, Franco Pertoldi, Olga Vriz
Carcinoid syndrome is the constellation of symptoms mediated by humoral factors produced by some carcinoid tumors. It consists primarily of vasomotor symptoms, gastrointestinal hypermotility, hypotension, and bronchospasm, due to the production and release of vasoactive substances. Carcinoid heart disease occurs in more than 50% of patients with carcinoid syndrome; in some cases, it represents the initial manifestation of the disease. We report the case of a 75-year-old woman with a metastatic neuroendocrine tumor admitted to the emergency room for fatigue and heart failure...
April 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28634555/a-rare-case-of-pneumopericardium-in-the-setting-of-tuberculous-constrictive-pericarditis
#9
Lauro L Abrahan Iv, Stephanie Martha O Obillos, Jaime Alfonso M Aherrera, Jose Donato A Magno, Celia Catherine C Uy-Agbayani, Ulysses King G Gopez, Jobelle Joyce Anne R Baldonado
A 28-year-old Filipino male was admitted due to high-grade fevers and dyspnea on a background of chronic cough and weight loss. Due to clinical and echocardiographic signs of cardiac tamponade, emergency pericardiocentesis was performed on his first hospital day. Five days after, chest radiographs showed new pockets of radiolucency within the cardiac shadow, indicative of pneumopericardium. On repeat echo, air microbubbles admixed with loculated effusion were visualized in the anterior pericardial space. Constrictive physiology was also supported by a thickened pericardium, septal bounce, exaggerated respiratory variation in AV valve inflow, and IVC plethora...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28634448/from-behavioral-facilitation-to-inhibition-the-neuronal-correlates-of-the-orienting-and-reorienting-of-auditory-attention
#10
Faith M Hanlon, Andrew B Dodd, Josef M Ling, Juan R Bustillo, Christopher C Abbott, Andrew R Mayer
Successful adaptive behavior relies on the ability to automatically (bottom-up) orient attention to different locations in the environment. This results in a biphasic pattern in which reaction times (RT) are faster for stimuli that occur in the same spatial location (valid) for the first few hundred milliseconds, which is termed facilitation. This is followed by faster RT for stimuli that appear in novel locations (invalid) after longer delays, termed inhibition of return. The neuronal areas and networks involved in the transition between states of facilitation and inhibition remain poorly understood, especially for auditory stimuli...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28634438/computational-models-of-anterior-cingulate-cortex-at-the-crossroads-between-prediction-and-effort
#11
Eliana Vassena, Clay B Holroyd, William H Alexander
In the last two decades the anterior cingulate cortex (ACC) has become one of the most investigated areas of the brain. Extensive neuroimaging evidence suggests countless functions for this region, ranging from conflict and error coding, to social cognition, pain and effortful control. In response to this burgeoning amount of data, a proliferation of computational models has tried to characterize the neurocognitive architecture of ACC. Early seminal models provided a computational explanation for a relatively circumscribed set of empirical findings, mainly accounting for EEG and fMRI evidence...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28634390/increased-glutamate-in-somatosensory-cortex-in-functional-dyspepsia
#12
Arthur D P Mak, Georg Northoff, David K W Yeung, Winnie C W Chu, Steve C N Hui, Cynthia Cheung, Jessica Ching, Linda Lam, Sing Lee, Justin Wu
Functional Dyspepsia-Post-prandial Distress Syndrome (FD-PDS) was associated with mood-related increases in resting activity and lowered activation threshold in the somatosensory cortex (SSC), insula and perigenual anterior cingulate cortex(pgACC) in functional imaging studies. The underlying cortical neurochemical changes are unknown. We performed proton Magnetic Resonance Spectroscopy (1H-MRS) on 17 consecutive tertiary clinic-recruited psychotropic-naïve Rome III FD-PDS female and 17 age-sex matched healthy controls...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634312/-a-case-of-dural-arteriovenous-fistula-in-the-anterior-cranial-fossa-that-developed-remote-from-the-craniotomy-site-after-surgery
#13
Ichiro Kawahara, Takashi Fujimoto, Makoto Hirose, Keisuke Toyoda, Naoki Kitagawa
Dural arteriovenous fistula(dAVF)is relatively rare, and its etiology remains uncertain. Generally, dAVF is thought to be acquired and has been reported to develop secondary to sinus thrombosis, head injury, infection, and surgery. We report a rare case of dAVF in the anterior cranial fossa that developed remote from the craniotomy site after surgery. A 52-year-old man underwent surgery for hypertensive intracerebral hemorrhage 4 years prior. Perioperative imaging modalities demonstrated no abnormal vascular malformation except for an un-ruptured anterior communicating artery aneurysm...
June 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28634244/simple-expression-domains-are-regulated-by-discrete-crms-during-drosophila-oogenesis
#14
Nicole T Revaitis, Robert A Marmion, Maira Farhat, Vesile Ekiz, Wei Wang, Nir Yakoby
Eggshell patterning has been extensively studied in Drosophila melanogaster However, the cis-regulatory modules (CRMs), which control spatiotemporal expression of these patterns, are vastly unexplored. The FlyLight collection contains over 7,000 intergenic and intronic DNA fragments that, if containing CRMs, can drive the transcription factor GAL4. We cross-listed the 84 genes known to be expressed during D. melanogaster oogenesis with the ~1200 listed genes of the FlyLight collection, and found 22 common genes that are represented by 281 FlyLight fly lines...
June 20, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28634097/acetabular-reconstruction-with-the-medial-protrusio-technique-for-complex-primary-and-revision-total-hip-arthroplasties
#15
Scott M Eskildsen, Zenus J Wilson, David C McNabb, Christopher W Olcott, Daniel J Del Gaizo
BACKGROUND: In the setting of acetabular deficiency during total hip arthroplasty (THA), the medial protrusio technique (MPT) allows for increased component coverage while avoiding excessive component abduction or elevation of the hip center. The technique involves controlled reaming through the medial acetabular wall while maintaining the continuity of the anterior and posterior columns. The purpose of this study is to analyze the results of the largest reported series to date of primary and revision THAs using the MPT...
May 26, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28634079/relaxin-reduces-susceptibility-to-post-infarct-atrial-fibrillation-in-mice-due-to-anti-fibrotic-and-anti-inflammatory-properties
#16
Thomas Beiert, Vedat Tiyerili, Vincent Knappe, Verena Effelsberg, Markus Linhart, Florian Stöckigt, Sabine Klein, Robert Schierwagen, Jonel Trebicka, Georg Nickenig, Jan W Schrickel, René P Andrié
BACKGROUND: Relaxin-2 (RLX) is a peptide hormone that exerts beneficial anti-fibrotic and anti-inflammatory effects in diverse models of cardiovascular disease. The goal of this study was to determine the effects of RLX treatment on the susceptibility to atrial fibrillation (AF) after myocardial infarction (MI). METHODS: Mice with cryoinfarction of the left anterior ventricular wall were treated for two weeks with either RLX (75 μg/kg/d) or vehicle (sodium acetate) delivered via subcutaneously implanted osmotic minipumps...
June 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28633973/patellofemoral-osteoarthritis-progression-and-alignment-changes-after-open-wedge-high-tibial-osteotomy-do-not-affect-clinical-outcomes-at-mid-term-follow-up
#17
Kenichi Goshima, Takeshi Sawaguchi, Kenji Shigemoto, Shintaro Iwai, Akira Nakanishi, Ken Ueoka
PURPOSE: To evaluate the clinical and radiological outcomes of open-wedge high tibial osteotomy (OWHTO) with respect to the patellofemoral joint and to assess whether patellofemoral osteoarthritis (OA) progression and alignment changes after OWHTO affect clinical outcomes. METHODS: Inclusion criteria were consecutive patients who underwent OWHTO from March 2005 to September 2013. Exclusion criteria were loss to follow-up within 2 years and absence of second-look arthroscopy findings at the time of plate removal...
June 17, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28633799/interposition-ankle-arthroplasty-using-acellular-dermal-matrix-a%C3%A2-small-series
#18
Brian Carpenter, Kyle Duncan, Jordan Ernst, Dalton Ryba, Sumihiro Suzuki
Although ankle arthrodesis is the reference standard for end-stage ankle arthritis, loss of mobility and adjacent joint arthritis are consequences that alternatives to arthrodesis attempt to avoid. The purpose of the present study was to report the clinical results of interpositional arthroplasty using acellular dermal matrix in 4 patients (age 32 to 42 years) for the treatment of advanced ankle osteoarthritis. The primary findings included relief of pain, with improvement in tibiotalar joint range of motion from a mean of 16...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28633791/peroneus-tertius-tendon-tear-causing-lateral-ankle-pain-in-a-child
#19
Niall P McGoldrick, Diane Bergin, Stephen R Kearns
The peroneus tertius muscle arises in the anterior compartment of the leg and demonstrates significant morphologic variation. Its function is not yet clearly delineated. We present the case of a 12-year-old patient with an isolated tear of the peroneus tertius tendon that resulted in lateral based ankle pain. After surgical reconstruction, the patient's pain resolved, and he was able to return to his normal activities.
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28633768/comparing-different-surgical-techniques-for-addressing-the-posterior-malleolus-in-supination-external-rotation-ankle-fractures-and-the-need-for-syndesmotic-screw-fixation
#20
Mengnai Li, Rachel C Collier, Brian W Hill, Nathaniel Slinkard, Thuan V Ly
Trimalleolar ankle fractures are unstable injuries with possible syndesmotic disruption. Recent data have described inherent morbidity associated with screw fixation of the syndesmosis, including the potential for malreduction, hardware irritation, and post-traumatic arthritis. The posterior malleolus is an important soft tissue attachment for the posterior inferior syndesmosis ligament. We hypothesized that fixation of a sizable posterior malleolar (PM) fracture in supination external rotation type IV (SER IV) ankle fractures would act to stabilize the syndesmosis and minimize or eliminate the need for trans-syndesmotic fixation...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
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