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https://www.readbyqxmd.com/read/28635494/urea-cycle-disorder-misdiagnosed-as-multiple-sclerosis-a-case-report-and-review-of-the-literature
#1
Hussein Algahtani, Seham Alameer, Yousef Marzouk, Bader Shirah
Urea cycle disorders are a group of inborn errors of metabolism caused by dysfunction of any of the six enzymes or two transport proteins involved in urea biosynthesis. In this paper, we report a patient who presented with neurological dysfunction and coma in the immediate postpartum period. She was misdiagnosed for many years as a case of multiple sclerosis. The importance of reporting this case is to illustrate that the wrong diagnosis of patients as being affected with multiple sclerosis for many years due to magnetic resonance imaging abnormalities rather than the classic relapsing-remitting nature of the disease may lead to catastrophic consequences...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28634410/climate-response-to-the-8-2-ka-event-in-coastal-california
#2
Jessica L Oster, Warren D Sharp, Aaron K Covey, Jansen Gibson, Bruce Rogers, Hari Mix
A fast-growing stalagmite from the central California coast provides a high-resolution record of climatic changes synchronous with global perturbations resulting from the catastrophic drainage of proglacial Lake Agassiz at ca. 8.2 ka. High frequency, large amplitude variations in carbon isotopes during the 8.2 ka event, coupled with pulsed increases in phosphorus concentrations, indicate more frequent or intense winter storms on the California coast. Decreased magnesium-calcium ratios point toward a sustained increase in effective moisture during the event, however the magnitude of change in Mg/Ca suggests this event was not as pronounced on the western North American coast as anomalies seen in the high northern latitudes and monsoon-influenced areas...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634092/alarmingly-high-rate-of-implant-fractures-in-one-modular-femoral-stem-design-a-comparison-of-two-implants
#3
Ritesh R Shah, Jeffrey M Goldstein, Nancy E Cipparrone, Alexander C Gordon, Matthew L Jimenez, Wayne M Goldstein
BACKGROUND: Reports of implant fracture at the modular junction have been seen in modular neck designs, stem-sleeve modular femoral stems, and diaphyseal engaging bi-body modular stems. To date, however, there has never been a direct comparison between 2 different implant designs from the same modular family. The purpose of this study is to compare the rate of implant failure of 2 such stem-sleeve modular femoral stem designs, the S-ROM and Emperion, to further identify factors which increase the risk of this mode of failure...
May 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28632503/the-catastrophic-antiphospholipid-syndrome-in-children
#4
Ellen J L Go, Kathleen M O'Neil
PURPOSE OF REVIEW: To review the difficult syndrome of catastrophic antiphospholipid syndrome, emphasizing new developments in the diagnosis, pathogenesis and treatment. RECENT FINDINGS: Few recent publications directly address pediatric catastrophic antiphospholipid syndrome (CAPS). Most articles are case reports or are data from adult and pediatric registries. The major factors contributing to most pediatric catastrophic antiphospholipid syndrome include infection and the presence of antiphospholipid antibodies, but complement activation also is important in creating diffuse thrombosis in the microcirculation...
June 16, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28631693/-independent-risk-factors-for-severe-cardiovascular-events-in-male-patients-with-gout-results-of-a-7-year-prospective-study
#5
M S Eliseev, I S Denisov, E I Markelova, S I Glukhova, E L Nasonov
AIM: To determine risk factors for severe cardiovascular (CV) events (CVEs) in male patients with crystal-verified gout. SUBJECTS AND METHODS: 251 male patients with crystal-verified gout were prospectively followed up in 2003 to 2013. The mean follow-up period was 6.9±2.0 years. New severe CVE cases and deaths were recorded. Logistic regression was used to analyze the impact of traditional and other risk factors and allopurinol use on the risk for severe CVEs...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28630321/how-selective-severing-by-katanin-promotes-order-in-the-plant-cortical-microtubule-array
#6
Eva E Deinum, Simon H Tindemans, Jelmer J Lindeboom, Bela M Mulder
Plant morphogenesis requires differential and often asymmetric growth. A key role in controlling anisotropic expansion of individual cells is played by the cortical microtubule array. Although highly organized, the array can nevertheless rapidly change in response to internal and external cues. Experiments have identified the microtubule-severing enzyme katanin as a central player in controlling the organizational state of the array. Katanin action is required both for normal alignment and the adaptation of array orientation to mechanical, environmental, and developmental stimuli...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28629739/twisting-cracks-in-bouligand-structures
#7
Nobphadon Suksangpanya, Nicholas A Yaraghi, David Kisailus, Pablo Zavattieri
The Bouligand structure, which is found in many biological materials, is a hierarchical architecture that features uniaxial fiber layers assembled periodically into a helicoidal pattern. Many studies have highlighted the high damage-resistant performance of natural and biomimetic Bouligand structures. One particular species that utilizes the Bouligand structure to achieve outstanding mechanical performance is the smashing Mantis Shrimp, Odontodactylus Scyllarus (or stomatopod). The mantis shrimp generates high speed, high acceleration blows using its raptorial appendage to defeat highly armored preys...
June 10, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28629016/effect-of-stearic-acid-modified-hap-nanoparticles-in-different-solvents-on-the-properties-of-pickering-emulsions-and-hap-plla-composites
#8
Ming Zhang, Ai-Juan Wang, Jun-Ming Li, Na Song
Stearic acid (Sa) was used to modify the surface properties of hydroxyapatite (HAp) in different solvents (water, ethanol or dichloromethane(CH2Cl2)). Effect of different solvents on the properties of HAp particles (activation ratio, grafting ratio, chemical properties), emulsion properties (emulsion stability, emulsion type, droplet morphology) as well as the cured materials (morphology, average pore size) were studied. FT-IR and XPS results confirmed the interaction occurred between stearic acid and HAp particles...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28626551/pickering-emulsions-stabilized-by-coloured-organic-pigment-particles
#9
Bernard P Binks, Samuel O Olusanya
The possibility of stabilizing emulsions of water and non-polar alkane with pure, coloured organic pigment particles is explored. Seven pigment types each possessing a primary colour of the rainbow were selected. Their solubility in water or heptane was determined using a spectrophotometric method and their surface energies were derived from the contact angles of probe liquids on compressed disks of the particles. As expected, most of the pigments are relatively hydrophobic but pigment orange is quite hydrophilic...
January 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28625543/characterization-of-vibrio-cholerae-o1-strains-that-trace-the-origin-of-haitian-like-genetic-traits
#10
Priyanka Ghosh, Dhirendra Kumar, Goutam Chowdhury, Puneeta Singh, Prosenjit Samanta, Shanta Dutta, T Ramamurthy, N C Sharma, Preety Sinha, Yogendra Prasad, Sumio Shinoda, Asish K Mukhopadhyay
Vibrio cholerae O1 is the etiological agent of the severe diarrheal disease cholera. The bacterium has recently been causing outbreaks in Haiti with catastrophic effects. Numerous mutations have been reported in V. cholerae O1 strains associated with the Haitian outbreak. These mutations encompass among other the genes encoding virulence factors such as the pilin subunit of the toxin-co-regulated pilus (tcpA), cholera toxin B subunit (ctxB), repeat in toxins (rtxA), and other genes such as the quinolone resistance-determining region (QRDR) of gyrase A (gyrA), rstB of RS element along with the alteration in the number of repeat sequences at the promoter region of ctxAB...
June 15, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28624716/seizure-related-hospital-admissions-readmissions-and-costs-comparisons-with-asthma-and-diabetes-in-south-australia
#11
Michelle L Bellon, Christopher Barton, Nikki McCaffrey, Denise Parker, Claire Hutchinson
PURPOSE: Seizures are listed as an Ambulatory Care Sensitive Condition (ACSC), where, in some cases, hospitalisation may be avoided with appropriate preventative and early management in primary care. We examined the frequencies, trends and financial costs of first and subsequent seizure-related hospital admissions in the adult and paediatric populations, with comparisons to bronchitis/asthma and diabetes admissions in South Australia between 2012 and 2014. METHODS: De-identified hospital separation data from five major public hospitals in metropolitan South Australia were analysed to determine the number of children and adults admitted for the following Australian Refined Diagnosis Related Groups: seizure related conditions; bronchitis/asthma; and diabetes...
June 10, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28622519/replication-catastrophe-when-a-checkpoint-fails-because-of-exhaustion
#12
REVIEW
Luis Toledo, Kai John Neelsen, Jiri Lukas
Proliferating cells rely on the so-called DNA replication checkpoint to ensure orderly completion of genome duplication, and its malfunction may lead to catastrophic genome disruption, including unscheduled firing of replication origins, stalling and collapse of replication forks, massive DNA breakage, and, ultimately, cell death. Despite many years of intensive research into the molecular underpinnings of the eukaryotic replication checkpoint, the mechanisms underlying the dismal consequences of its failure remain enigmatic...
June 15, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28620416/antiphospholipid-syndrome-multiple-manifestations-in-a-single-patient-a-high-suspicion-is-still-needed
#13
Uroosa Ibrahim, Shiksha Kedia, Gwenalyn Garcia, Jean Paul Atallah
Antiphospholipid Syndrome (APS) is an autoimmune disorder with clinical and laboratory features of vascular thrombosis, pregnancy loss, and persistent antiphospholipid antibodies (aPLs). The pathophysiology is thought to involve the activation of endothelial cells, monocytes, platelets, and complement by aPLs. Disease can range from asymptomatic to rapidly fatal catastrophic APS. We present a case of a 34-year-old male referred for pancytopenia and splenomegaly. On examination, he had decreased sensation and 4/5 power in the left upper extremity...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28619756/alpha-particle-enhanced-blood-brain-tumor-barrier-permeabilization-in-glioblastomas-using-integrin-alpha-v-beta-3-targeted-liposomes
#14
Anirudh Sattiraju, Xiaobing Xiong, Darpan N Pandya, Thaddeus J Wadas, Ang Xuan, Yao Sun, Youngkyoo Jung, Kiran Kumar Solingapuram Sai, Jay F Dorsey, King C Li, Akiva Mintz
<span style="font-size: 11.0pt; line-height: 200%; color: windowtext;">Glioblastoma (GBM) is the most common primary malignant astrocytoma characterized by extensive invasion, angiogenesis, hypoxia and micrometastasis. Despite the relatively leaky nature of GBM blood vessels, effective delivery of anti-tumor therapeutics has been a major challenge due to the complications caused by the blood brain barrier (BBB) and the highly torturous nature of newly formed tumor vasculature (blood tumor barrier-BTB)...
June 15, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28619687/use-of-the-central-sensitization-inventory-csi-as-a-treatment-outcome-measure-for-chronic-spinal-pain-disorder-patients-in-a-functional-restoration-program
#15
Randy Neblett, Meredith M Hartzell, Mark Williams, Kelley R Bevers, Tom G Mayer, Robert J Gatchel
BACKGROUND CONTEXT: The Central Sensitization Inventory (CSI) is a valid and reliable patient-reported instrument designed to identify patients whose presenting symptoms may be related to Central Sensitization (CS). Part A of the CSI measures a full array of 25 somatic and emotional symptoms associated with CS, and Part B asks if patients have previously been diagnosed with one or more specific Central Sensitivity Syndromes (CSSs) and related disorders. The CSI has previously been validated in a group of chronic pain patients who were screened by a trained psychiatrist for specific CSS diagnoses...
June 12, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28616577/caspase-2-in-mitotic-catastrophe-the-terminator-of-aneuploid-and-tetraploid-cells
#16
Ilio Vitale, Gwenola Manic, Maria Castedo, Guido Kroemer
Mitotic catastrophe is an oncosuppressive mechanism that targets cells experiencing defective mitoses via the activation of specific cell cycle checkpoints, regulated cell death pathways and/or cell senescence. This prevents the accumulation of karyotypic aberrations, which otherwise may drive oncogenesis and tumor progression. Here, we summarize experimental evidence confirming the role of caspase 2 (CASP2) as the main executor of mitotic catastrophe, and we discuss the signals that activate CASP2 in the presence of mitotic aberrations...
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/28616392/catastrophic-complication-following-injection-and-extracorporeal-shock-wave-therapy-of-a-medial-femoral-condyle-subchondral-cystic-lesion-in-a-14-year-old-arabian-mare
#17
Darla K Moser, Mike J Schoonover, Kate M Sippel, Alix M Dieterly, Jerry W Ritchey, Corey R Wall
This report describes fibrous cyst lining injection and extracorporeal shock wave therapy (ESWT) of a medial femoral condyle (MFC) subchondral cystic lesion (SCL) resulting in catastrophic MFC fracture in an Arabian mare. The mare was presented for evaluation of a severe hind limb lameness of approximately 4 months duration. On presentation, a non-weight bearing lameness of the left hind limb with severe effusion and soft tissue swelling of the stifle region was noted. Radiographic evaluation of the stifle revealed a large SCL of the MFC with associated osteoarthritis...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28616194/habitat-use-and-spatial-fidelity-of-male-south-american-sea-lions-during-the-nonbreeding-period
#18
Alastair M M Baylis, Rachael A Orben, Daniel P Costa, Megan Tierney, Paul Brickle, Iain J Staniland
Conditions experienced during the nonbreeding period have profound long-term effects on individual fitness and survival. Therefore, knowledge of habitat use during the nonbreeding period can provide insights into processes that regulate populations. At the Falkland Islands, the habitat use of South American sea lions (Otaria flavescens) during the nonbreeding period is of particular interest because the population is yet to recover from a catastrophic decline between the mid-1930s and 1965, and nonbreeding movements are poorly understood...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28616086/homeopathic-treatment-for-prolonged-postoperative-coma-a-case-report
#19
G Vithoulkas, V Văcăraș, J Kavouras, A D Buzoianu, M Mărginean, D Văcăraș, S Cozma
Coma is the state of unrousable unconsciousness. There are variations in the degree of coma and the findings and signs found on the patient's clinical examination depend on the underlying cause of the disorder. The Glasgow Coma scale evaluates the best motor, verbal and eye answers of the patient. A patient is considered to be in a coma if his Glasgow Coma Scale is below 8 points. The progress that we have made throughout the years has also led to complications that can culminate in a major catastrophe like death, permanent brain damage, coma...
April 2017: Journal of Medicine and Life
https://www.readbyqxmd.com/read/28616006/the-burden-of-chronic-pain-after-major-head-and-neck-tumor-therapy
#20
Abdullah Sulieman Terkawi, Siny Tsang, Anwar S Alshehri, Dhaifallah S Mulafikh, Abdulrahman A Alghulikah, Saleh F AlDhahri
INTRODUCTION: Little is known about the burden of chronic pain after major head and neck tumors' therapy. In this study, we aimed to estimate the prevalence of chronic pain, explore the factors associated with the presence of chronic pain, and assess the consequences of chronic pain on the patients' quality of life. METHODOLOGY: This was a cross-sectional survey among patients who had completed their therapy (e.g., surgery, radiotherapy, and chemotherapy) for major head and neck (larynx, nasopharynx, oropharynx, hypopharynx, oral cavity, tongue, and sinuses) tumors after at least 3 months...
May 2017: Saudi Journal of Anaesthesia
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