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https://www.readbyqxmd.com/read/29040802/freezing-temperatures-ice-nanotubes-structures-and-proton-ordering-of-tip4p-ice-water-inside-single-wall-carbon-nanotubes
#1
Pietro Pugliese, Maria Martin Conde, Mauro Rovere, Paola Gallo
A very recent experimental paper importantly and unexpectedly showed that water in carbon nanotubes is already in the solid ordered phase at the temperature where bulk water boils. The water models used so far in literature for molecular dynamics simulations in carbon nanotubes show freezing temperatures lower than the experiments. We present here results from molecular dynamics simulations of water inside single walled carbon nanotubes using an extremely realistic model for both liquid and icy water, the TIP4P/ICE...
October 17, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29040777/efficient-imaging-examining-the-value-of-ultrasound-in-the-diagnosis-of-traumatic-adult-brachial-plexus-injuries-a-systematic-review
#2
Brian Chin, Maleka Ramji, Forough Farrokhyar, James R Bain
INTRODUCTION: Traumatic brachial plexus injury (BPI) can result in debilitating sequelae of the upper extremity. Presently, therapeutic decisions are based on the mechanism of injury, serial physical examination, electromyography, nerve conduction, and imaging studies. While magnetic resonance imaging is the current imaging modality of choice for BPI, ultrasound is a promising newcomer that is inexpensive, accessible, and available at point of care. OBJECTIVE: To evaluate ultrasound as a diagnostic tool in the assessment of traumatic adult BPI through a systematic review...
October 11, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29040246/a-rare-case-of-cecal-bascule-in-a-child-with-normal-neurodevelopment
#3
Sandra Oliveira Loureiro, Timothy Lynch, Braeden John Medeiros, Neil Merritt, Rodrick Lim
Cecal volvulus is a rare cause of bowel obstruction in adults and an extremely rare presentation in children. One form known as a cecal bascule has only previously been reported in children with neurodevelopmental issues or with severe chronic constipation. We present the case of a 10-year-old boy who presented with an acute history of left lower quadrant abdominal pain, who upon investigation was found to have a cecal bascule.
October 16, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29040202/re-examination-of-a-battlefield-trauma-golden-hour-policy
#4
Jeffrey T Howard, Russ S Kotwal, Alexis R Santos, Matthew J Martin, Zsolt T Stockinger
BACKGROUND: Most combat casualties who die, do so in the prehospital setting. Efforts directed toward alleviating prehospital combat trauma death, known as killed in action (KIA) mortality, have the greatest opportunity for eliminating preventable death. METHODS: 4,542 military casualties injured in Afghanistan from September 11, 2001 to March 31, 2014 were included in this retrospective analysis to evaluate proposed explanations for observed KIA reduction following a mandate by Secretary of Defense Robert M...
October 16, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29036866/the-prevalence-of-occupational-musculoskeletal-disorders-in-iran-a-meta-analysis-study
#5
Ayub Parno, Kourosh Sayehmiri, Mohsen Parno, Mohammad Khandan, Mohsen Poursadeghiyan, Maryam Maghsoudipour, Mohammad Hossein Ebrahimi
BACKGROUND: Prevention of Work-Related Musculoskeletal Disorders (WRMSDs) is crucial as they jeopardize the well-being of the workforce in workplaces and are prevalent in developed and developing countries. OBJECTIVE: This study aimed to determine the prevalence of WRMSDs among Iranian workers. METHODS: A systematic review and meta-analysis of WRMSDs in Iran was performed by searching relevant keywords in authentic databases and search engines such as SID, Google Scholar, Medlib and PubMed...
October 8, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/29036466/insights-into-epigenome-evolution-from-animal-and-plant-methylomes
#6
Soojin V Yi
Evolutionary studies of DNA methylation begin to provide insights into the underlying forces governing the variation of genomic DNA methylation across different species. Comparisons of gross levels of DNA methylation between distantly related species indicate that the size of the genome and the level of genomic DNA methylation are positively correlated. In plant genomes, this can be reliably explained by the contents of repetitive sequences, while the underlying driver of this correlation is less clear in animal genomes...
September 25, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29036232/rare-and-common-variants-of-apob-and-pcsk9-in-korean-patients-with-extremely-low-low-density-lipoprotein-cholesterol-levels
#7
Chan Joo Lee, Yunbeom Lee, Sungha Park, Seok-Min Kang, Yangsoo Jang, Ji Hyun Lee, Sang-Hak Lee
BACKGROUND: Screening of variants, related to lipid metabolism in patients with extreme cholesterol levels, is a tool used to identify targets affecting cardiovascular outcomes. The aim of this study was to examine the prevalence and characteristics of rare and common variants of APOB and PCSK9 in Korean patients with extremely low low-density lipoprotein-cholesterol (LDL-C) levels. METHODS: Among 13,545 participants enrolled in a cardiovascular genome cohort, 22 subjects, whose LDL-C levels without lipid-lowering agents were ≤1 percentile (48 mg/dL) of Korean population, were analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/29036002/multimodal-imaging-in-klippel-tr%C3%A3-naunay-weber-syndrome-clinical-photography-computed-tomoangiography-infrared-thermography-and-99mtc-phytate-lymphoscintigraphy
#8
Su Wan Kim, Heesung Song
We report the case of a 19-year-old man who presented with a 12-year history of progressive fatigue, feeling hot, excessive sweating, and numbness in the left arm. He had undergone multimodal imaging and was diagnosed as having Klippel-Trénaunay-Weber syndrome (KTWS). This is a rare congenital disease, defined by combinations of nevus flammeus, venous and lymphatic malformation, and hypertrophy of the affected limbs. Lower extremities are affected mostly. Conventional modalities for evaluating KTWS are ultrasonography, CT, MRI, lymphoscintigraphy, and angiography...
October 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29035997/stewart-treves-syndrome-on-the-lower-extremity-associated-to-idiopathic-chronic-lymphedema-visualized-on-fdg-pet-ct
#9
Jane Maestri Brittain, Tine Nymark, Malene Grubbe Hildebrandt, Dorrit Hovgaard, Kim Francis Andersen
Angiosarcomas are highly malignant and rare tumors of vascular or lymphatic endothelial cell origin with a poor prognosis. Lymphangiosarcoma associated with chronic lymphedema is known as Stewart-Treves syndrome. Stewart-Treves syndrome is primarily described in patients with lymphedema of an upper extremity occurring after breast cancer surgery including radical axillary lymph node dissection and subsequent radiotherapy. It is rarely described in the presence of idiopathic chronic lymphedema of the lower extremities...
October 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29035984/risk-factors-for-lower-extremity-injuries-among-contemporary-dance-students
#10
Christine van Seters, Rogier M van Rijn, Marienke van Middelkoop, Janine H Stubbe
OBJECTIVE: To determine whether student characteristics, lower-extremity kinematics, and strength are risk factors for sustaining lower-extremity injuries in preprofessional contemporary dancers. DESIGN: Prospective cohort study. SETTING: Codarts University of the Arts. PATIENTS: Forty-five first-year students of Bachelor Dance and Bachelor Dance Teacher. ASSESSMENT OF RISK FACTORS: At the beginning of the academic year, the injury history (only lower-extremity) and student characteristics (age, sex, educational program) were assessed using a questionnaire...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035936/the-italian-version-of-the-outpatient-physical-therapy-improvement-in-movement-assessment-log-cross-cultural-adaptation-and-psychometric-properties
#11
Carla Vanti, Jorge H Villafañe, Mirco Branchini, Mauro Giacobazzi, Martina Ruggeri, Stefano Negrini, Andrew Guccione, Paolo Pillastrini
Instruments to measure movement abilities from a patient's perspective are generally unavailable across diverse cultures and languages. The aim of this study was to translate, culturally adapt, and validate the Italian version of the Outpatient Physical Therapy Improvement in Movement Assessment Log (OPTIMAL) confidence scale. This study was an observational multicenter study. The Italian version of the OPTIMAL confidence scale (OPTIMAL-I) was developed following forward-backward translation and pretesting with a small group of patients...
October 13, 2017: International Journal of Rehabilitation Research. Revue Internationale de Recherches de Réadaptation
https://www.readbyqxmd.com/read/29035881/activation-of-signaling-cascades-by-weak-extremely-low-frequency-electromagnetic-fields
#12
Einat Kapri-Pardes, Tamar Hanoch, Galia Maik-Rachline, Manuel Murbach, Patricia L Bounds, Niels Kuster, Rony Seger
BACKGROUND/AIMS: Results from recent studies suggest that extremely low frequency magnetic fields (ELF-MF) interfere with intracellular signaling pathways related to proliferative control. The mitogen-activated protein kinases (MAPKs), central signaling components that regulate essentially all stimulated cellular processes, include the extracellular signal-regulated kinases 1/2 (ERK1/2) that are extremely sensitive to extracellular cues. Anti-phospho-ERK antibodies serve as a readout for ERK1/2 activation and are able to detect minute changes in ERK stimulation...
October 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29034650/a-complicated-case-of-resistant-hypertension
#13
Mauro Chiarito, Andrea Scotti, Carlo A Pivato, Giuseppe Cottone, Carlo Ballarotto, Cosmo Godino, Alberto Margonato
A 47-year-old woman presented with a history of resistant arterial hypertension, associated with disabling headache. She was subjected to an enormous number of tests in order to identify an underlying cause of secondary hypertension, such as pheochromocytoma or Cushing syndrome, but all the most common causes of secondary hypertension were investigated and gradually excluded. Factitious use of amphetamine or cocaine was excluded, and therapy compliance was verified by witnessed ingestion of drug therapy, in order to rule out Munchausen syndrome...
August 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29034038/catheter-directed-thrombolysis-in-the-treatment-of-acute-ischemia-in-lower-extremities-is-safe-and-effective-especially-with-concomitant-endovascular-treatment
#14
Lærke Urbak, Louise de la Motte, Peter Rørdam, Aamir Siddiqi, Henrik Sillesen
Objective: To evaluate the influence of pre-procedural characteristics on immediate and late results as well as the safety of catheter-directed thrombolysis (CDT) in acute ischemia of the lower extremity. Materials and Methods: A retrospective study comprising 249 patients treated by CDT from January 2006 to December 2012. Outcomes were primary patency, haemorrhagic complications, amputation and mortality. Results: Primary patency for CDT alone was 68%, for CDT plus endovascular treatment 87% and for successful CDT with supplementary surgery 62% giving an overall primary patency of 76%...
June 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29034036/intervention-for-varicose-veins-of-lower-extremities-lowers-the-brain-natriuretic-peptide-values-in-varicose-vein-patients
#15
Kiyoshi Tamura
Objective: To evaluate the relationship between varicose veins and heart failure, both of which cause edema of lower extremities. Materials and Methods: We enrolled 150 patients who underwent intervention for varicose veins of lower extremities between December 2012 and October 2015, and perioperative data were retrospectively investigated. Results: Of the 150 patients, 104 (69.3%) were females. The mean age was 66.8±10.6 years (27-85 years). Eighty (53.3%) patients had varicose veins in both legs. In all patients, the postoperative (brain natriuretic peptide (BNP) value was significantly lower than the preoperative BNP value (pre : post=39...
June 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29034024/successful-complete-surgical-resection-of-a-large-venous-malformation-of-the-lower-extremity-a-case-report
#16
Yohei Yamamoto, Tsuyoshi Ichinose, Masahiro Nakamura, Masato Nishizawa, Kimihiro Igari, Takahiro Toyofuku, Toshifumi Kudo, Yoshinori Inoue
Venous malformations (VMs) are the most common type of vascular malformations, resulting from errors in vascular morphogenesis. Because of the wide variety in their presentations, selecting the appropriate treatment, especially for large VMs, may be challenging. Herein, we report a case of a 59-year-old man with a large VM in the lower extremity who achieved favorable outcomes by complete surgical resection. Even large VMs can be successfully treated with surgery when patients are properly selected. An accurate and careful evaluation is essential for achieving optimal outcome in patients with VMs...
March 24, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29034020/persistent-sciatic-artery-aneurysm-with-limb-ischemia-a-report-of-two-cases
#17
Koichi Morisaki, Terutoshi Yamaoka, Kazuomi Iwasa, Sosei Kuma, Jin Okazaki
We report two cases of persistent sciatic artery (PSA) aneurysm with limb ischemia. Physicians who treat peripheral artery disease should be aware that PSA is a very rare congenital malformation of the lower extremities that is potentially hazardous, and that revascularization should be performed when a PSA aneurysm is treated.
March 24, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29033817/cholesterotic-fibrous-histiocytoma-in-a-patient-with-metabolic-syndrome
#18
Masatoshi Deguchi, Setsuya Aiba
Among the many variants of dermatofibroma, dermatofibroma with cholesterol cleft (cholesterotic fibrous histiocytoma) is extremely rare. Here, we describe the case of a 50-year-old male patient with a cholesterotic fibrous histiocytoma on his left lower leg. He presented with a hyperkeratotic nodule 6 mm in diameter with a brown surface on the extensor surface of his left lower leg. The lesion had developed over the course of a few years without any tendency to heal. A skin biopsy performed on the tumor showed histopathological findings compatible with those of dermatofibroma...
May 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29033816/verruciform-xanthoma-of-a-lower-lip-lesion-a-new-case-and-review-of-the-literature
#19
Filiz Cebeci, Ayşegül Verim, Adnan Somay, Emel Çalıkoğlu
A non-smoking man in his seventh decade presented with a lesion he had had for about 5 years on the right external surface of the lip 1 mm from the vermilion border. On physical examination, a yellowish-coloured, non-tender, verrucous mass of 0.5 × 0.7 cm was observed. A histopathological examination of the first 3-mm punch biopsy was non-diagnostic. The histopathological evaluation of a second, 5-mm-deep punch biopsy made by a pathology expert in oral lesions revealed a diagnosis of verruciform xanthoma. The key to the diagnosis of verruciform xanthoma is to recognize xanthoma cells...
May 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29033684/fluorine-18-2-fluoro-2-deoxy-d-glucose-positron-emission-tomography-computed-tomography-masquerading-as-a-case-of-sporadic-malignant-peripheral-nerve-sheath-tumor-of-lower-extremity-presenting-as-massive-lower-limb-edema
#20
Deepa Singh, Rajender Kumar, Ashim Das, Subhash C Varma, Bhagwant R Mittal
Malignant peripheral nerve sheath tumors (MPNSTs) are rare neuroectodermal tumors resulting from the malignant transformation of benign plexiform neurofibromas. The sporadic form of these tumors is rare than familial variants (seen in neurofibromatosis Type 1) and making the diagnosis difficult. We are presenting a case of 40--year-old female with the complaint of progressive swelling of lower limb with initial suspicion of lymphedema and underwent lymphoscintigraphy, magnetic resonance imaging, and finally fluorine-18-2-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography scans were done to rule out mitotic etiology and extent of the disease...
October 2017: World Journal of Nuclear Medicine
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