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https://www.readbyqxmd.com/read/27915422/state-of-the-art-review-of-the-right-ventricle-in-copd-patients-it-is-time-to-look-closer
#1
REVIEW
Daniela Graner Schuwartz Tannus-Silva, Marcelo Fouad Rabahi
Since the first description of pulmonary circulation in the 16th century, the knowledge of the complex interaction between the heart and lungs has greatly improved. Hypoxemia plays a classical role in the development of complications such as pulmonary hypertension and right ventricle (RV) dysfunction in patients presenting with chronic obstructive pulmonary disease (COPD). However, more recent results have revealed the presence of RV vascular structural and functional changes even in patients with mild COPD, without hypoxemia or pulmonary hypertension at rest...
December 3, 2016: Lung
https://www.readbyqxmd.com/read/27914882/representation-of-the-body-in-the-lateral-striatum-of-the-freely-moving-rat-fast-spiking-interneurons-respond-to-stimulation-of-individual-body-parts
#2
Julianna Kulik, Anthony Pawlak, Manraj Kalkat, Kevin Coffey, Mark O West
: Numerous studies have shown that certain types of striatal interneurons play a crucial role in selection and regulation of striatal output. Striatal Fast-Spiking Interneurons (FSIs) are parvalbumin positive, GABAergic interneurons that constitute less than 1% of the total striatal population. It is becoming increasingly evident that these sparsely distributed neurons exert a strong inhibitory effect on Medium Spiny projection Neurons (MSNs). MSNs in lateral striatum receive direct synaptic input from regions of cortex representing discrete body parts, and show phasic increases in activity during touch or movement of specific body parts...
November 30, 2016: Brain Research
https://www.readbyqxmd.com/read/27914828/oleuropein-protects-l-02-cells-against-h2o2-induced-oxidative-stress-by-increasing-sod1-gpx1-and-cat-expression
#3
Ce Shi, Xiangrong Chen, Zuojia Liu, Rizeng Meng, Xingchen Zhao, Zonghui Liu, Na Guo
Oleuropein (OL), a natural phenolic compound, comprises the major constituent of Olea europea leaves and unprocessed olives, and OL is considered to be the principal components that confer the characteristic taste and stability of olive oil. Oxidative damage induced by H2O2 treatment can irreversibly damage the L-02 cells, resulting in cell death and apoptosis. Whether the effects of oxidative stress could be attenuated in cultured human L-02 cells by incubation with OL is still unknown. In this research, the function of OL in protecting human L-02 cells against H2O2 induced cell death and cell apoptosis was investigated, and the mechanism by which OL underlies the effect was also examed...
November 30, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27914118/blue-lymphangitis-of-the-breast-after-breast-cancer-case-report
#4
Alexandra Arfi, Alice Clavier, Jean F Honart, Samy Ammari, Zahira Merabet, Christine Mateus, Julia Arfi-Rouche
Carcinomatous lymphangitis accounts for 5% of all skin metastases, but blue lymphangitis of the breast has never been described. We report a case of blue lymphangitis of the breast in a patient 11 years after treatment for ipsilateral breast cancer that was in full remission. Breast examination and imaging showed no other abnormalities. Skin biopsy revealed a carcinomatous-pigmented infiltration corresponding to melanoma metastasis, which helped highlight a primitive right flank injury. This case report emphasizes that a full body exam should always be performed with unusual presentation of breast cancer and reiterates the indispensable place of histology before any diagnosis...
December 3, 2016: Breast Journal
https://www.readbyqxmd.com/read/27913689/how-is-low-parental-socioeconomic-status-associated-with-future-smoking-and-nicotine-dependence-in-offspring-a-population-based-longitudinal-13-year-follow-up
#5
Willy Pedersen, Tilmann Von Soest
AIMS: Low socioeconomic status (SES) characterizes smoking and nicotine dependence in adult samples. However, less is known about how parental SES is linked to smoking in offspring and the potential mechanisms at work. METHODS: A population-based longitudinal study (n=1380) from Norway was used. Participants were followed from their mid-teens until their late 20s using survey and register data. Data were collected on parental education, parental smoking, educational aspirations and expectations, school grades and school-related conduct problems...
December 1, 2016: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/27913068/occult-infratemporal-fossa-neurofibroma-presenting-with-persistent-unilateral-tinnitus-and-middle-ear-effusion-more-than-meets-the-eye
#6
Lucas P Carlstrom, Kathryn M Van Abel, Matthew L Carlson, Eric J Moore, Janalee K Stokken
Herein, we present the case of a previously healthy 54year-old female who developed several weeks of unilateral tinnitus and aural fullness. She subsequently underwent unilateral pressure equalization tube placement at an outside institution after exam demonstrated a middle ear effusion, conductive hearing loss and normal nasopharyngoscopy. Ultimately, an MRI revealed an occult mass in the infratemporal fossa (ITF), which was successfully removed via an endoscopic transnasal ITF approach. Following resection of a histopathologically confirmed benign neurofibroma, she reported complete resolution of her symptoms...
November 23, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27909773/magnetic-resonance-imaging-of-fetal-pelvic-cysts
#7
REVIEW
Styliani Archontaki, Yvan Vial, Sylviane Hanquinet, Reto Meuli, Leonor Alamo
The detection of fetal anomalies has improved in the last years as a result of the generalization of ultrasound pregnancy screening exams. The presence of a cystic imaging in the fetal pelvis is a relatively common finding, which can correspond to a real congenital cystic lesion or result from the anomalous liquid accumulation in a whole pelvic organ, mainly the urinary bladder, the uterus, or the vagina. In selected cases with poor prognosis and/or inconclusive echographic findings, magnetic resonance may bring additional information in terms of the characterization, anatomical location, and real extension of the pathology...
December 1, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27909455/salivary-testosterone-levels-under-psychological-stress-and-its-relationship-with-rumination-and-five-personality-traits-in-medical-students
#8
Reza Afrisham, Sahar Sadegh-Nejadi, Omid SoliemaniFar, Wesam Kooti, Damoon Ashtary-Larky, Fatima Alamiri, Mohammad Aberomand, Sedigheh Najjar-Asl, Ali Khaneh-Keshi
OBJECTIVE: The purpose of this study was to evaluate the salivary testosterone levels under psychological stress and its relationship with rumination and five personality traits in medical students. METHODS: A total of 58 medical students, who wanted to participate in the final exam, were selected by simple random sampling. Two months before the exam, in the basal conditions, the NEO Inventory short form, and the Emotional Control Questionnaire (ECQ) were completed...
November 2016: Psychiatry Investigation
https://www.readbyqxmd.com/read/27909021/step-by-step-biology-undergraduates-problem-solving-procedures-during-multiple-choice-assessment
#9
Luanna B Prevost, Paula P Lemons
This study uses the theoretical framework of domain-specific problem solving to explore the procedures students use to solve multiple-choice problems about biology concepts. We designed several multiple-choice problems and administered them on four exams. We trained students to produce written descriptions of how they solved the problem, and this allowed us to systematically investigate their problem-solving procedures. We identified a range of procedures and organized them as domain general, domain specific, or hybrid...
2016: CBE Life Sciences Education
https://www.readbyqxmd.com/read/27908963/anomalous-mesenteric-vessel-a-rare-etiology-of-intermittent-partial-small-bowel-obstruction
#10
Natasha Hansraj, Shannon M Larabee, Kimberly M Lumpkins
We report a case of an 11-year with recurrent episodes of abdominal pain and vomiting. Diagnostic laparoscopy during a severe episode demonstrated an anomalous blood vessel incompletely encircling the bowel, leading to transient partial small bowel obstruction. This likely represents a remnant vessel from the omphalomesenteric duct. Recurrent abdominal pain and vomiting in the pediatric population requires careful history and physical exam, and a willingness to entertain unusual diagnoses.
December 1, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27908253/assessment-of-bone-quality-in-osteoporosis-treatment-with-bone-anabolic-agents-really-something-new
#11
Fabio Massimo Ulivieri, Renata Caudarella, Marzia Camisasca, Daniela Maria Cabrini, Ilaria Merli, Carmelo Messina, Luca Petruccio Piodi
Osteoporosis is a chronic pathologic condition, particularly of the elderly, in which a reduction of bone mineral density (BMD) weakens bone, leading to the so-called fragility fractures, most often of spine and femur. The gold standard exam for the quantitative measurement of BMD is the dual X-ray photon absorptiometry (DXA), a radiological method. However, a relevant number of fragility fractures occurs in the range of normal BMD values, meaning that also qualitative aspects of bone play a role, namely bone architecture and bone geometry...
December 1, 2016: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/27907983/north-korean-refugee-doctors-preliminary-examination-scores
#12
Sung Uk Chae, Jeong Hee Yang, Joon Seop Hyun, June Hee Kim, Seok Hoon Kang
PURPOSE: Although there have been studies emphasizing the re-education of North Korean (NK) doctors for post-unification of the Korean Peninsula, study on the content and scope of such re-education has yet to be conducted. Researchers intended to set the content and scope of re-education by a comparative analysis for the scores of the preliminary examination, which is comparable to the Korean Medical Licensing Examination (KMLE). METHODS: The scores of the first and second preliminary exams were analyzed by subject using the Wilcoxon signed rank test...
December 2016: Korean Journal of Medical Education
https://www.readbyqxmd.com/read/27907941/frequency-selective-non-linear-blending-to-improve-image-quality-in-liver-ct
#13
M N Bongers, G Bier, C Kloth, C Schabel, J Fritz, K Nikolaou, M Horger
Purpose: To evaluate the effects of a new frequency selective non-linear blending (NLB) algorithm on the contrast resolution of liver CT with low intravascular concentration of iodine contrast. Materials and Methods: Our local ethics committee approved this retrospective study. The informed consent requirement was waived. CT exams of 25 patients (60 % female, mean age: 65 ± 16 years of age) with late phase CT scans of the liver were included as a model for poor intrahepatic vascular contrast enhancement...
December 2016: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/27907190/are-exam-questions-known-in-advance-using-local-dependence-to-detect-cheating
#14
Stefan Zimmermann, Dietrich Klusmann, Wolfgang Hampe
Cheating is a common phenomenon in high stakes admission, licensing and university exams and threatens their validity. To detect if some exam questions had been affected by cheating, we simulated how data would look like if some test takers possessed item preknowledge: Responses to a small number of items were set to correct for 1-10% of test takers. Item difficulty, item discrimination, item fit, and local dependence were computed using an IRT 2PL model. Then changes in these item properties from the non-compromised to the compromised dataset were scrutinized for their sensitivity to item preknowledge...
2016: PloS One
https://www.readbyqxmd.com/read/27906953/what-s-tramadol-got-to-do-with-it-a-case-report-of-rebound-hypoglycemia-a-reappraisal-and-review-of-potential-mechanisms
#15
Charles A Odonkor, Akhil Chhatre
BACKGROUND: Tramadol has gained traction as an analgesic of choice among pain practicing physicians. However some concerns regarding a previously unlabeled adverse reaction - hypoglycemia - have cast it in a dim light. Prior reports have noted an associated risk of hospitalization for hypoglycemia after tramadol use, but whether tramadol is the main causal agent is poorly understood and the underlying mechanisms are not well delineated. We present a unique case of rebound hypoglycemia as a variation of the theme of tramadol's adverse effect profile in a patient with type 1 diabetes mellitus, and reappraise potential mechanisms underlying this underappreciated phenomenon...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27905996/type-2-diabetes-detection-and-management-among-insured-adults
#16
Timothy M Dall, Weyna Yang, Pragna Halder, Jerry Franz, Erin Byrne, April P Semilla, Ritashree Chakrabarti, Bruce Stuart
BACKGROUND: The Centers for Disease Control and Prevention estimates that 28.9 million adults had diabetes in 2012 in the US, though many patients are undiagnosed or not managing their condition. This study provides US national and state estimates of insured adults with type 2 diabetes who are diagnosed, receiving exams and medication, managing glycemic levels, with diabetes complications, and their health expenditures. Such information can be used for benchmarking and to identify gaps in diabetes detection and management...
November 21, 2016: Population Health Metrics
https://www.readbyqxmd.com/read/27904815/pneumorrhachis-resulting-in-transient-paresis-after-picc-line-insertion-into-the-ascending-lumbar-vein
#17
Russell Payne, Emily P Sieg, Arabinda Choudhary, Mark Iantosca
Obtaining intravascular access in the neonatal intensive care unit (NICU) is not only critical but also technically challenging. Malposition of the catheter tip is a known and well-documented complication. Specifically, peripherally inserted central venous catheter (PICC) line insertion into the ascending lumbar vein can lead to neurological dysfunction and, in some cases, even death. We present the first reported case of pneumorrhachis (PR) following PICC line insertion into the ascending lumbar vein. Our patient presented with lower extremity weakness and imaging confirmed the presence of air within the spinal canal...
October 17, 2016: Curēus
https://www.readbyqxmd.com/read/27904790/current-concepts-in-the-treatment-of-gross-patellofemoral-instability
#18
Grant Buchanan, LeeAnne Torres, Brian Czarkowski, Charles E Giangarra
: Patellofemoral instability is a painful and commonly recurring condition, which often must be managed surgically. Diagnosis can be aided by the use of a variety of physical exam signs, such as the Q angle, Beighton hypermobility score, glide test, J sign, patellar tilt test, and apprehension test. Imaging modalities including x-ray, CT, and MRI guide both diagnosis and management by revealing trochlear dysplasia, bony malalignment, and ligamentous injury that contribute to instability...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27903857/a-hyperpigmented-reticular-rash-in-a-patient-on-peritoneal-dialysis
#19
Andrew M South, Milene K Crispin, Ann L Marqueling, Scott M Sutherland
Chronically ill patients often develop uncommon exam findings. A 16-year-old female with end-stage renal disease secondary to immune complex-mediated glomerulonephritis on peritoneal dialysis (PD) developed a pruritic, hyperpigmented reticular rash on her abdomen, sparing the PD catheter insertion site. The rash appeared approximately 6 weeks after initiating PD. She used a heating pad nightly during PD for dialysis drain pain. Testing for systemic and autoimmune disease was negative. She was referred to dermatology, where the diagnosis of erythema ab igne (EAI), a well-described but less well-known hyperpigmented reticular cutaneous eruption caused by chronic exposure to low levels of infrared heat, was confirmed...
November 2016: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/27903809/the-bimanual-ovarian-palpation-examination-in-the-prostate-lung-colorectal-and-ovarian-cancer-screening-trial-performance-and-complications
#20
Maryam Doroudi, Barnett S Kramer, Paul F Pinsky
OBJECTIVE: To provide evidence about the performance characteristics and consequences of bimanual ovarian palpation. SETTING AND METHODS: The Prostate, Lung, Colorectal and Ovarian cancer screening trial randomized 154,900 individuals to either an intervention or control arm. Enrolled eligible participants were aged 55-74, had no history of trial cancers, and no current treatment for cancer. Intervention arm women received CA-125 tests and transvaginal ultrasound...
November 30, 2016: Journal of Medical Screening
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