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https://www.readbyqxmd.com/read/28938310/administration-of-four-factor-prothrombin-complex-concentrate-for-a-life-threatening-bleed-in-a-jehovah-s-witness-patient
#1
Jennifer L Cole, Nathanael D McLeod
: Life-threatening bleeds are medical emergencies that require time-sensitive decision making. Patients of the Jehovah's Witness faith can present a challenging conundrum when their beliefs conflict with modern treatment options for haemorrhage. Providers may not be aware of the grades of acceptance of the newer products outside of packed red blood cells. Researchers present a case of using four-factor prothrombin complex concentrate in a Jehovah's Witness patient in a life-threatening gastrointestinal haemorrhage along with a brief review of the literature...
September 21, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28937816/resemblance-to-the-enemy-s-eyes-underlies-the-intimidating-effect-of-eyespots
#2
Karin Kjernsmo, Sami Merilaita
Eyespots of some prey are known to deter predators, but the reason for this response has not yet been established, and thus the taxonomically widespread occurrence of this color pattern has remained an evolutionary conundrum. Two alternative hypotheses propose that (1) the eyelike appearance of the pattern falsely indicates the presence of the predator's own enemy or (2) predators are hardwired to be cautious toward conspicuous prey. Earlier research has pertained mainly to eyespots in butterflies. Here we tested the hypothesis that eyespots resemble eyes by utilizing the lateral position of eyes in fishes...
October 2017: American Naturalist
https://www.readbyqxmd.com/read/28934473/the-conserved-au-dinucleotide-at-the-5-end-of-nascent-u1-snrna-is-optimized-for-the-interaction-with-nuclear-cap-binding-complex
#3
Chung-Shu Yeh, Shang-Lin Chang, Jui-Hui Chen, Hsuan-Kai Wang, Yue-Chang Chou, Chun-Hsiung Wang, Shih-Hsin Huang, Amy Larson, Jeffrey A Pleiss, Wei-Hau Chang, Tien-Hsien Chang
Splicing is initiated by a productive interaction between the pre-mRNA and the U1 snRNP, in which a short RNA duplex is established between the 5' splice site of a pre-mRNA and the 5' end of the U1 snRNA. A long-standing puzzle has been why the AU dincucleotide at the 5'-end of the U1 snRNA is highly conserved, despite the absence of an apparent role in the formation of the duplex. To explore this conundrum, we varied this AU dinucleotide into all possible permutations and analyzed the resulting molecular consequences...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28933912/more-is-less-learning-but-not-relaxing-buffers-deviance-under-job-stressors
#4
Chen Zhang, David M Mayer, Eunbit Hwang
Workplace deviance harms the well-being of an organization and its members. Unfortunately, theory and prior research suggest that deviance is associated with job stressors, which are endemic to work organizations and often cannot be easily eliminated. To address this conundrum, we explore actions individuals can take at work that serve as buffering conditions for the positive relationship between job stressors and deviant behavior. Drawing upon conservation of resources theory, we examine a resource-building activity (i...
September 21, 2017: Journal of Applied Psychology
https://www.readbyqxmd.com/read/28929914/the-conundrum-of-opioid-tapering-in-long-term-opioid-therapy-for-chronic-pain-a-commentary
#5
Ajay Manhapra, Albert A Arias, Jane C Ballantyne
BACKGROUND: In response to the opioid epidemic and new guidelines, many patients on high-dose long term opioid therapy (LTOT) for chronic pain are getting tapered off opioids. As a result, a unique clinical challenge is emerging: while many on LTOT have poor pain control, functional decline, psychiatric instability, aberrancies and misuse, these issues may often worsen with opioid tapering. Currently, a clear explanation and practical guidance on how to manage this perplexing clinical scenario is lacking...
September 20, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28927262/autophagy-is-pro-senescence-when-seen-in-close-up-but-anti-senescence-in-long-shot
#6
Yoojin Kwon, Ji Wook Kim, Jo Ae Jeoung, Mi-Sung Kim, Chanhee Kang
When mammalian cells and animals face a variety of internal or external stresses, they need to make homeostatic changes so as to cope with various stresses. To this end, mammalian cells are equipped with two critical stress responses, autophagy and cellular senescence. Autophagy and cellular senescence share a number of stimuli including telomere shortening, DNA damage, oncogenic stress and oxidative stress, suggesting their intimate relationship. Autophagy is originally thought to suppress cellular senescence by removing damaged macromolecules or organelles, yet recent studies also indicated that autophagy promotes cellular senescence by facilitating the synthesis of senescence-associated secretory proteins...
September 20, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28926657/ethical-conundrums-in-pain-medicine-the-intersection-of-industry-sponsorship-fee-for-service-interventions-and-access-to-care
#7
Steven P Cohen, Rollin M Gallagher
No abstract text is available yet for this article.
September 1, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28923383/design-synthesis-and-structure-activity-relationship-studies-of-a-focused-library-of-pyrimidine-moiety-with-anti-proliferative-and-anti-metastasis-activities-in-triple-negative-breast-cancer
#8
Dahong Yao, Yuxin Zhou, Lingjuan Zhu, Liang Ouyang, Jin Zhang, Yingnan Jiang, Yuqian Zhao, Dejuan Sun, Shilin Yang, Yang Yu, Jinhui Wang
Triple-negative breast cancer (TNBC) is a clinical conundrum with distinct clinical and pathologic features, which is characterized by high aggression, poor prognosis, and lack of targeted therapies. In this study, based on the structural features of type II kinase inhibitors, we designed and synthesized a focused library of 41 pyrimidine derivatives possessing potent anti-proliferation activity, Y29 showed the most potent activity against MDA-MB-231 cells. Subsequently, we carried out target prediction, homology modeling, molecular docking, dynamics simulation and determination of enzymatic activity...
September 15, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28922499/antioxidants-wonder-drugs-or-quackery
#9
REVIEW
Angelo Azzi
An answer to the question posed by the title must be simple not to disturb in his tomb Albert Einstein, who wrote "Man muß die Dinge so einfach wie möglich machen. Aber nicht einfacher". A simple answer (not simpler) can be: Antioxidants are not antioxidants, they are not wonder drugs and they are not all quackery; but they are not nothing. The arguments in support of this conundrumic statement will be developed below. © 2017 BioFactors, 2017.
September 18, 2017: BioFactors
https://www.readbyqxmd.com/read/28918719/is-the-prevalence-of-mental-illness-increasing-in-australia-evidence-from-national-health-surveys-and-administrative-data-2001-2014
#10
Samuel B Harvey, Mark Deady, Min-Jung Wang, Arnstein Mykletun, Peter Butterworth, Helen Christensen, Philip B Mitchell
OBJECTIVES: To assess changes in the prevalence rates of probable common mental disorders (CMDs) and in rates of disability support pensions (DSPs) for people with psychiatric disorders in Australia between 2001 and 2014. DESIGN, SETTING AND PARTICIPANTS: Secondary analysis of data from five successive Australian national health surveys of representative samples of the working age population (18-65 years of age) and national data on DSP recipients. MAIN OUTCOME MEASURES: Prevalence of probable CMDs with very high symptom level (defined by a Kessler Psychological Distress Scale [K10] score of 30 or more) or with high symptom level (K10 score of 22 or more); the proportion of working age Australians receiving DSPs for psychiatric conditions...
June 19, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28914190/perioperative-considerations-of-herbal-medications
#11
Ryan M Chadha, Brian J Egan
BACKGROUND: A considerable portion of the US population uses herbal supplements on a daily basis for their various proposed beneficial effects. However, the over-the-counter nature of these medications and lack of knowledge of adverse effect profiles can have unexpected serious impact on the perioperative course. The growing list of supplements presents a pharmacologic conundrum to the anesthesiologist. OBJECTIVE: To compile a comprehensive list of vitamins, herbals, and supplements used commonly by patients, describe the risks associated with them, and identify recommendations for perioperative management...
September 13, 2017: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/28913952/new-age-ideas-about-age-old-sex-separating-meiosis-from-mating-could-solve-a-century-old-conundrum
#12
Michael Brandeis
Ever since Darwin first addressed it, sexual reproduction reigns as the 'queen' of evolutionary questions. Multiple theories tried to explain how this apparently costly and cumbersome method has become the universal mode of eukaryote reproduction. Most theories stress the adaptive advantages of sex by generating variation, they fail however to explain the ubiquitous persistence of sexual reproduction also where adaptation is not an issue. I argue that the obstacle for comprehending the role of sex stems from the conceptual entanglement of two distinct processes - gamete production by meiosis and gamete fusion by mating (mixis)...
September 14, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28912984/caecal-perforation-from-primary-intestinal-tuberculosis-in-pregnancy
#13
Soe Lwin, Nina Lau Lee Jing, Haris Suharjono, Mardiana Binti Kipli, Tin Moe Nwe, Myat San Yi, Lucas Luk Tien Wee
The incidence of tuberculosis (TB) is rising worldwide, despite the efficacy of the BCG vaccination. Populations at greatest risk of contracting TB are migrant communities, as well as immunocompromised individuals. The diagnosis of extrapulmonary TB (EPTB) can often present as a diagnostic conundrum, due to its nonspecific and varied presentation, often mimicking inflammatory bowel disease or malignancy. We present a case of caecal TB in pregnancy, which resulted in caecal perforation, a right hemicolectomy, and severe preterm delivery...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28899013/the-fatigue-conundrum
#14
Annapoorna Kuppuswamy
No abstract text is available yet for this article.
August 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28892133/statins-for-primary-prevention-in-older-adults-an-unresolved-conundrum
#15
EDITORIAL
Michael W Rich, Carl F Pieper
No abstract text is available yet for this article.
September 11, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28869518/combining-theory-driven-evaluation-and-causal-loop-diagramming-for-opening-the-black-box-of-an-intervention-in-the-health-sector-a-case-of-performance-based-financing-in-western-uganda
#16
Dimitri Renmans, Nathalie Holvoet, Bart Criel
Increased attention on "complexity" in health systems evaluation has resulted in many different methodological responses. Theory-driven evaluations and systems thinking are two such responses that aim for better understanding of the mechanisms underlying given outcomes. Here, we studied the implementation of a performance-based financing intervention by the Belgian Technical Cooperation in Western Uganda to illustrate a methodological strategy of combining these two approaches. We utilized a systems dynamics tool called causal loop diagramming (CLD) to generate hypotheses feeding into a theory-driven evaluation...
September 3, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28863322/il-17-contributes-to-the-pathogenesis-of-obliterative-bronchiolitis-via-regulation-of-m1-macrophages-polarization-in-murine-heterotopic-trachea-transplantation-models
#17
Qingshu Meng, Jie Liu, Fang Lin, Luer Bao, Yuyu Jiang, Liang Zheng, Jinjun Tie, Lin Zhang, Xiaoting Liang, Lu Wei, Yuan Li, Huimin Fan, Xiaohui Zhou
Acute allograft rejection is a principal conundrum in lung obliterative bronchiolitis (OB). Monocytes/macrophages infiltration has been proved to be the main reason for acute rejection. IL-17 contributes to the recruitment and function of macrophages. However, the mechanism of IL-17 underlying OB progression remains elusive. In the present study, we showed that the deficiency of IL-17 attenuated the pathology of murine heterotopic trachea allografts. Compared to WT recipients, IL-17(-/-) mice displayed higher frequency of CD206+ cells and lower ratio of CD86+ cells among F4/80+ macrophages in allografts and spleens on day 7 post heterotopic trachea transplantation...
August 29, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28856562/cardiac-safety-profile-of-patients-receiving-high-cumulative-doses-of-pegylated-liposomal-doxorubicin-use-of-left-ventricular-ejection-fraction-is-of-unproven-value
#18
Keith M Skubitz, Anne H Blaes, Suma H Konety, Gary S Francis
PURPOSE: One of the great conundrums for both oncologists and cardiologists is how to best monitor the potential and actual cardiotoxicity of doxorubicin. Pegylated-liposomal doxorubicin (PLD) has a safer cardiotoxicity profile than bolus administration of doxorubicin. Although ejection fraction (EF) is commonly performed to monitor doxorubicin-induced cardiotoxicity, evidence for its predictive utility is limited. We examined the incidence of doxorubicin-induced heart failure (HF) in patients who received a large cumulative dose of doxorubicin as PLD and its relation to EF and HF...
August 30, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28852558/reflecting-the-human-nature-of-ivf-embryos-disappearing-women-in-ethics-law-and-fertility-practice
#19
Jenni Millbank
Many laws and ethical documents instruct us that disembodied embryos created through IVF processes are not mere tissue; they are 'widely regarded' as unique objects of serious moral consideration. Even in jurisdictions which disavow any overt characterization of embryonic personhood, the embryo, by virtue of its uniqueness and orientation toward future development, is said to have a 'special status' or command 'respect'. The woman whose desire for a child or children created this embryo, and who inhabits the body to whom it may one day be returned, is an omission or at best an afterthought in such frameworks...
April 2017: Journal of Law and the Biosciences
https://www.readbyqxmd.com/read/28852227/bipolar-disorder-clinical-conundrums-1
#20
EDITORIAL
M S Reddy, M Starlin Vijay, Swetha Reddy
No abstract text is available yet for this article.
July 2017: Indian Journal of Psychological Medicine
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