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https://www.readbyqxmd.com/read/28339288/the-proximal-tibiofibular-joint-a-biomechanical-analysis-of-the-anterior-and-posterior-ligamentous-complexes
#1
Daniel Cole Marchetti, Gilbert Moatshe, Brian M Phelps, Kimi D Dahl, Marcio Balbinotti Ferrari, Jorge Chahla, Travis Lee Turnbull, Robert F LaPrade
BACKGROUND: Dislocation of the proximal tibiofibular joint is a complex injury that is often overlooked or misdiagnosed. Surgical management is recommended for severe acute or for chronic symptomatic instability of the proximal tibiofibular joint. Although the anterior ligamentous complex has been reported to be stronger than the posterior complex, biomechanical data are lacking. PURPOSE: To determine the ultimate load of the anterior and posterior ligamentous complexes of the proximal tibiofibular joint to determine optimal graft selection...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28339186/quantum-chemical-strain-analysis-for-mechanochemical-processes
#2
Tim Stauch, Andreas Dreuw
The use of mechanical force to initiate a chemical reaction is an efficient alternative to the conventional sources of activation energy, i.e., heat, light, and electricity. Applications of mechanochemistry in academic and industrial laboratories are diverse, ranging from chemical syntheses in ball mills and ultrasound baths to direct activation of covalent bonds using an atomic force microscope. The vectorial nature of force is advantageous because specific covalent bonds can be preconditioned for rupture by selective stretching...
March 24, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28337294/hypoxic-preconditioning-of-human-cardiosphere-derived-cell-sheets-enhances-cellular-functions-via-activation-of-the-pi3k-akt-mtor-hif-1%C3%AE-pathway
#3
Yuya Tanaka, Tohru Hosoyama, Akihito Mikamo, Hiroshi Kurazumi, Arata Nishimoto, Koji Ueno, Bungo Shirasawa, Kimikazu Hamano
Cell sheet technology is a promising therapeutic strategy for the treatment of ischemic diseases such as myocardial infarction. We recently developed a novel protocol, termed "hypoxic preconditioning," capable of augmenting the therapeutic efficacy of cell sheets. Following this protocol, the pro-angiogenic and anti-fibrotic activity of cell sheets were enhanced by brief incubation of cell sheets under hypoxic culture conditions. However, the precise molecular mechanism underlying the hypoxic preconditioning of cell sheets is unclear...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337114/precondition-of-right-frontal-region-with-anodal-tdcs-can-restore-the-fear-memory-impairment-induced-by-acpa-in-male-mice
#4
Fariborz Manteghi, Mohammad Nasehi, Mohammad-Reza Zarrindast
Fear memory and learning cause behavioural patterns such as fight or flight responses, which increase survival probability, but unfit processing of fear memory and learning can lead to maladaptive behaviours and maladies such as phobias, Post-Traumatic Stress Disorder (PTSD) and anxiety disorders. The growing prevalence of these maladies shows the need to quest novel methods for their treatment. We used anodal transcranial direct current stimulation (tDCS) on the right frontal region as a precondition neuromodulator and arachidonylcyclopropylamide (ACPA), a selective CB1 cannabinoid receptor agonist, as a fear memory impairing agent to assess their effects on contextual and auditory fear conditioning (reliable model for fear studies)...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28334559/design-and-hospitalwide-implementation-of-a-standardized-discharge-summary-in-an-electronic-health-record
#5
Shannon M Dean, Andrea Gilmore-Bykovskyi, Joel Buchanan, Brad Ehlenfeldt, Amy J H Kind
BACKGROUND: The hospital discharge summary is the primary method used to communicate a patient's plan of care to the next provider(s). Despite the existence of regulations and guidelines outlining the optimal content for the discharge summary and its importance in facilitating an effective transition to posthospital care, incomplete discharge summaries remain a common problem that may contribute to poor posthospital outcomes. Electronic health records (EHRs) are regularly used as a platform on which standardization of content and format can be implemented...
December 2016: Joint Commission Journal on Quality and Patient Safety
https://www.readbyqxmd.com/read/28330355/fast-divide-and-conquer-algorithm-for-evaluating-polarization-in-classical-force-fields
#6
Dominique Nocito, Gregory J O Beran
Evaluation of the self-consistent polarization energy forms a major computational bottleneck in polarizable force fields. In large systems, the linear polarization equations are typically solved iteratively with techniques based on Jacobi iterations (JI) or preconditioned conjugate gradients (PCG). Two new variants of JI are proposed here that exploit domain decomposition to accelerate the convergence of the induced dipoles. The first, divide-and-conquer JI (DC-JI), is a block Jacobi algorithm which solves the polarization equations within non-overlapping sub-clusters of atoms directly via Cholesky decomposition, and iterates to capture interactions between sub-clusters...
March 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28329903/-headache-treatment
#7
Hans Christoph Diener, Dagny Holle-Lee, Steffen Nägel, Charly Gaul
A precondition for the successful treatment of headaches is the correct headache diagnosis. Triptans are effective for attack treatment of migraine and cluster headache. However, there are not effective for the treatment of tension-type headache. For the prevention of frequent episodic migraine betablockers, flunarizine, topiramate and amitriptyline are recommended. For the prevention of chronic migraine evidence is only available for onabotulinumtoxinA and topiramate. For prophylactic treatment of tension-type headaches tricyclic antidepressants are used...
March 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28329336/remote-ischaemic-preconditioning-reduces-acute-kidney-injury-in-adult-patients-undergoing-cardiac-surgery-with-cardiopulmonary-bypass-a-meta-analysis
#8
Bin Yi, Xiang Chen, Han Shi, Tiao Lin, Haifeng Lin, Yi Xu, Jian Rong
This article represents the first attempt to perform a pooled analysis about remote ischaemic preconditioning (RIPC) in reduction of acute kidney injury (AKI) of adult patients undergoing cardiac surgery with cardiopulmonary bypass (CPB). A systematic search was performed using PubMed (1966-5 January 2016), the Cochrane Library (1996-5 January 2016), the Web of Science (1986-5 January 2016) and Chinese database (SinoMed) (1978-5 January 2016) to identify studies that have described the effect of RIPC on AKI in adult patients undergoing cardiac surgery with CPB...
December 22, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329231/cardiac-protective-effects-of-remote-ischaemic-preconditioning-in-children-undergoing-tetralogy-of-fallot-repair-surgery-a-randomized-controlled-trial
#9
Qingping Wu, Tingting Wang, Shiqiang Chen, Quanjun Zhou, Haobo Li, Na Hu, Yinglu Feng, Nianguo Dong, Shanglong Yao, Zhengyuan Xia
Aims: Remote ischaemic preconditioning (RIPC) by inducing brief ischaemia in distant tissues protects the heart against myocardial ischaemia-reperfusion injury (IRI) in children undergoing open-heart surgery, although its effectiveness in adults with comorbidities is controversial. The effectiveness and mechanism of RIPC with respect to myocardial IRI in children with tetralogy of Fallot (ToF), a severe cyanotic congenital cardiac disease, undergoing open heart surgery are unclear. We hypothesized that RIPC can confer cardioprotection in children undergoing ToF repair surgery...
February 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28328762/a-significant-influence-of-metronidazole-on-busulfan-pharmacokinetics-a-case-report-of-therapeutic-drug-monitoring
#10
Hyewon Chung, Kyung-Sang Yu, Kyung Taek Hong, Jung Yoon Choi, Che Ry Hong, Hyoung Jin Kang, Kyung Duk Park, Hee Young Shin, SeungHwan Lee
Busulfan is a cytotoxic agent used in preconditioning for hematopoietic stem cell transplantation (HSCT). Therapeutic drug monitoring of busulfan is necessary owing to its narrow therapeutic range. Patients undergoing preconditioning are susceptible to infection and might require co-administration of antibiotics. We present a case study of a three-year-old girl with precursor T-cell acute lymphoblastic leukemia who received intravenous busulfan before HSCT. Metronidazole was co-administered before the third dose of busulfan because of Clostridium difficile infection...
March 21, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28326658/nurse-middle-managers-contributions-to-patient-centred-care-a-managerial-work-analysis
#11
Pcb Lalleman, Gac Smid, J Dikken, M D Lagerwey, M J Schuurmans
Nurse middle managers are in an ideal position to facilitate patient-centred care. However, their contribution is underexposed in literature due to difficulties to articulate this in practice. This paper explores how nurse middle managers contribute to patient-centred care in hospitals. A combination of time-use analysis and ethnographic work was used to disclose their contribution to patient-centred care at a micro level. Sixteen nurse managers were shadowed for over 560 hours in four hospitals. Some nurse middle managers seldom contribute to patient-centred care...
March 21, 2017: Nursing Inquiry
https://www.readbyqxmd.com/read/28326307/p75-neurotrophin-receptor-in-the-skin-beyond-its-neurotrophic-function
#12
REVIEW
Carlo Pincelli
p75 neurotrophin receptor (p75(NTR)), also known as CD271, is the low-affinity receptor that, together with the tyrosine kinase receptor tropomyosin-receptor kinase (Trk), mediate neurotrophin (NT) functions. Beside their classic role in skin innervation, NT and their receptors constitute a complex cutaneous network associated with a number of autocrine and paracrine activities. In this context, the role of p75(NTR) is becoming more and more important. This review will focus on the intriguing functions of p75(NTR) in healthy and diseased skin...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28324168/the-effect-of-eccentric-exercise-with-blood-flow-restriction-on-neuromuscular-activation-microvascular-oxygenation-and-the-repeated-bout-effect
#13
Jakob D Lauver, Trent E Cayot, Timothy Rotarius, Barry W Scheuermann
PURPOSE: To examine the effect of low-intensity eccentric contractions with and without blood flow restriction (BFR) on microvascular oxygenation, neuromuscular activation, and the repeated bout effect (RBE). METHODS: Participants were randomly assigned to either low-intensity (LI), low-intensity with BFR (LI-BFR), or a control (CON) group. Participants in LI and LI-BFR performed a preconditioning bout of low-intensity eccentric exercise prior to about of maximal eccentric exercise...
March 21, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28323531/mitophagy-receptor-fundc1-regulates-mitochondrial-homeostasis-and-protects-the-heart-from-i-r-injury
#14
Weilin Zhang, Sami Siraj, Rong Zhang, Quan Chen
Mitophagy plays pivotal roles in the selective disposal of unwanted mitochondria, and accumulation of damaged mitochondria has been linked to ageing-related diseases. However, definitive proof that mitophagy regulates mitochondrial quality in vivo is lacking. It is also largely unclear whether damaged mitochondria are the cause or just the consequence of these diseases. We previously showed that FUNDC1 is a mitophagy receptor that interacts with LC3 to mediate mitophagy in response to hypoxia in cultured cells...
March 21, 2017: Autophagy
https://www.readbyqxmd.com/read/28322920/stem-cell-transplantation-therapy-for-multifaceted-therapeutic-benefits-after-stroke
#15
REVIEW
Ling Wei, Zheng Z Wei, Michael Qize Jiang, Osama Mohamad, Shan Ping Yu
One of the exciting advances in modern medicine and life science is cell-based neurovascular regeneration of damaged brain tissues and repair of neuronal structures. The progress in stem cell biology and creation of adult induced pluripotent stem (iPS) cells has significantly improved basic and pre-clinical research in disease mechanisms and generated enthusiasm for potential applications in the treatment of central nervous system (CNS) diseases including stroke. Endogenous neural stem cells and cultured stem cells are capable of self-renewal and give rise to virtually all types of cells essential for the makeup of neuronal structures...
March 16, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28322249/the-protective-effects-of-shikonin-on-hepatic-ischemia-reperfusion-injury-are-mediated-by-the-activation-of-the-pi3k-akt-pathway
#16
Tong Liu, QingHui Zhang, Wenhui Mo, Qiang Yu, Shizan Xu, Jingjing Li, Sainan Li, Jiao Feng, Liwei Wu, Xiya Lu, Rong Zhang, Linqiang Li, Keran Cheng, Yuqing Zhou, Shunfeng Zhou, Rui Kong, Fan Wang, Weiqi Dai, Kan Chen, Yujing Xia, Jie Lu, Yingqun Zhou, Yan Zhao, Chuanyong Guo
Hepatic ischemia/reperfusion (I/R) injury, which can result in severe liver injury and dysfunction, occurs in a variety of conditions such as liver transplantation, shock, and trauma. Cell death in hepatic I/R injury has been linked to apoptosis and autophagy. Shikonin plays a significant protective role in ischemia/reperfusion injury. The purpose of the present study was to investigate the protective effect of shikonin on hepatic I/R injury and explore the underlying mechanism. Mice were subjected to segmental (70%) hepatic warm ischemia to induce hepatic I/R injury...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28320107/pre-conditioning-with-tanshinone-iia-attenuates-the-ischemia-reperfusion-injury-caused-by-liver-grafts-via-regulation-of-hmgb1-in-rat-kupffer-cells
#17
Xuanfei Li, Yakun Wu, Wenfeng Zhang, Jianping Gong, Yao Cheng
OBJECTIVE: We have evaluated the protective mechanism of tanshinone IIA in ischemia/reperfusion injury (IRI) induced by liver grafts, revealing novel supplementary immunotherapy for liver transplantation. METHODS: The tanshinone IIA preconditioning group (TP group) was pretreated with tanshinone IIA via intraperitoneal injection for 1 week before receiving orthotopic liver transplantation with hepatic arterial ischemia for 30min. The sham-operation group (SO group), control graft group (CG group) and IRI group were pretreated with an equivalent volume of normal saline...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28304176/ingredients-to-tict-formation-in-donor-substituted-hemithioindigo
#18
Sandra Wiedbrauk, Benjamin Maerz, Elena Samoylova, Peter Mayer, Wolfgang Zinth, Henry Dube
TICT formation in hemithioindigo photoswitches has recently been reported and constitutes a second deexcitation pathway complementary to photoisomerization. Typically this behavior is not found for this type of photoswitches and it takes special geometric and electronic conditions to realize it. Here we present a systematic study that identifies the molecular preconditions leading to TICT formation in donor substituted hemithioindigo, which can thus serve as a frame of reference for other photoswitching systems...
March 17, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28304119/serum-markers-for-mitochondrial-dysfunction-and-cell-death-are-possible-predictive-indicators-for-drug-induced-liver-injury-by-direct-acting-antivirals
#19
Keisuke Kakisaka, Yuichi Yoshida, Yuji Suzuki, Takuro Sato, Hidekatsu Kuroda, Akio Miyasaka, Yasuhiro Takikawa
BACKGROUND & AIM: We prospectively screened patients treated with direct-acting antivirals (DAAs) in order to detect and analyze serum markers that are present prior to the development of drug-induced liver injury (DILI). METHODS: The levels of various serum markers among DILI, non-DILI, and control groups were compared. The DILI group consisted of 8 patients whose alanine aminotransferase (ALT) levels exceeded 32 IU/L during the DAA treatment. Eight patients without DILI were selected for the non-DILI group via a matched-group design based on age, gender, and disease severity...
March 17, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28303738/neural-stem-cell-transplantation-in-ischemic-stroke-a-role-for-preconditioning-and-cellular-engineering
#20
Joshua D Bernstock, Luca Peruzzotti-Jametti, Daniel Ye, Florian A Gessler, Dragan Maric, Nunzio Vicario, Yang-Ja Lee, Stefano Pluchino, John M Hallenbeck
Ischemic stroke continues to be a leading cause of morbidity and mortality throughout the world. To protect and/or repair the ischemic brain, a multitiered approach may be centered on neural stem cell (NSC) transplantation. Transplanted NSCs exert beneficial effects not only via structural replacement, but also via immunomodulatory and/or neurotrophic actions. Unfortunately, the clinical translation of such promising therapies remains elusive, in part due to their limited persistence/survivability within the hostile ischemic microenvironment...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
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