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https://www.readbyqxmd.com/read/29353129/keeping-it-together-and-falling-apart-women-s-dynamic-experience-of-birth
#1
Priscilla J Hall, Jennifer Whitman Foster, Kathryn M Yount, Bonnie Mowinski Jennings
OBJECTIVE: To explore the complexity of women's birth experiences in the context in which they occur and to describe how these influence women's well-being in labor. DESIGN: Qualitative method with a phenomenological approach, following the analysis principles of van Manen. PARTICIPANTS AND SETTING: Eight women from different ethnic and socioeconomic backgrounds in Atlanta, Georgia, United States with a recent, healthy birth were interviewed twice about their experience of the labor journey...
December 14, 2017: Midwifery
https://www.readbyqxmd.com/read/29353067/antinociception-of-the-spirocyclopiperazinium-salt-compound-lxm-15-via-activating-%C3%AE-7-nachr-and-m4-machr-and-inhibiting-camkii%C3%AE-camp-creb-cgrp-signalling-pathway-in-mice
#2
Hua Yang, Qi Sun, Yingying Liang, Yimin Jiang, Runtao Li, Jia Ye
The aim of this study was to investigate the analgesic effect of the spirocyclopiperazinium salt compound LXM-15 by intragastric administration in thermal and chemical pain models and further to elucidate the possible molecular mechanisms. The results showed that LXM-15 exerted significant antinociception in hot-plate test, formalin test and acetic acid writhing test. Western blot analysis showed that LXM-15 significantly reduced the upregulation of phosphorylation of calcium/calmodulin -dependent protein kinaseⅡα (CaMKIIα) and cAMP response element-binding protein (CREB), and further decreased the elevation of calcitonin gene related peptide (CGRP) in the dorsal root ganglion (DRG) and spinal cord in mice...
January 15, 2018: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29352333/long-term-results-of-custom-cementless-stem-total-hip-arthroplasty-performed-in-hip-fusion
#3
Xavier Flecher, Matthieu Ollivier, Pascal Maman, Sébastien Pesenti, Sébastien Parratte, Jean-Noël Argenson
INTRODUCTION: Due to complex anatomical considerations, results of cementless-stem total hip arthroplasty (THA) in hip fusion remain controversial compared with conventional THA. We therefore aimed to analyse 3D anatomy of the fused hip based on pre-operative computed tomography (CT) scans, functional outcomes based on the Harris Hip Score (HHS) and the Hip Disability and Osteoarthritis Outcome Score (HOOS), modifications of hip anatomy based on post-operative standardised radiography, and determine complication rate and long-term survival based on Kaplan-Meier analysis...
January 19, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29351939/retroperitoneal-bile-leak-after-laparoscopic-cholecystectomy
#4
Dee Zhen Lim, Enoch Wong, Sayed Hassen, Yahya Al-Habbal
Bile duct injury (BDI) is a well-recognised complication of laparoscopic cholecystectomy (LC). Following a BDI, bile usually leaks into the peritoneal space and causes biliary peritonitis. This manifests as non-specific abdominal pain and fever occurring several days after the surgery. It can be managed by laparoscopic washout with or without bile duct repair. We present a rare case of retroperitoneal bile leak post-LC. The mechanism of injury here was likely partial avulsion from excessive traction of the cystic duct during intraoperative cholangiogram...
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29351644/the-role-of-skeletal-muscle-in-the-pathophysiology-and-management-of-knee-osteoarthritis
#5
Priathashini Krishnasamy, Michelle Hall, Sarah R Robbins
The role of skeletal muscle in the pathophysiology of knee OA is poorly understood. To date, the majority of literature has focused on the association of muscle strength with OA symptoms, disease onset and progression. However, deficits or improvements in skeletal muscle strength do not fully explain the mechanisms behind outcome measures in knee OA, such as pain, function and structural disease. This review aims to summarize components of skeletal muscle, providing a holistic view of skeletal muscle mechanisms that includes muscle function, quality and composition and their interactions...
January 16, 2018: Rheumatology
https://www.readbyqxmd.com/read/29351616/deficient-glucagon-response-to-hypoglycemia-during-a-mixed-meal-in-total-pancreatectomy-islet-autotransplantation-recipients
#6
L D Bogachus, M D Bellin, A Vella, R P Robertson
Context: Total pancreatectomy and intrahepatic islet autotransplantation (TP/IAT) is performed to alleviate severe abdominal pain, avoid narcotic use, maintain islet function, and avoid diabetes in patients with chronic pancreatitis. However, many TP/IAT recipients complain of post-prandial hypoglycemia. Objective: This study was designed to discover mechanisms of this problem. Design: Participants consumed a triple-isotope mixed meal. Setting: Hospital research unit...
January 17, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351171/spinal-pkc-erk-signal-pathway-mediates-hyperalgesia-priming
#7
Wei-Hsin Chen, Ya-Ting Chang, Yong-Cyuan Chen, Sin-Jhong Cheng, Chien-Chang Chen
Chronic pain can be initiated by one or more acute stimulations to sensitize neurons into the primed state. In the primed state, the basal nociceptive thresholds of the animal are normal, but in response to another hyperalgesic stimulus, the animal develops enhanced and prolonged hyperalgesia. The exact mechanism of how primed state is formed is not completely understood. Here we showed that spinal PKC/ERK signal pathway is required for neuronal plasticity change, hyperalgesic priming formation and the development of chronic hyperalgesia using acid-induced muscle pain (AIMP) model in mice...
January 18, 2018: Pain
https://www.readbyqxmd.com/read/29351168/co-regulation-of-er-stress-and-oxidative-stress-in-neuropathic-pain-and-disinhibition-of-the-spinal-nociceptive-circuitry
#8
Yanhu Ge, Yingfu Jiao, Peiying Li, Zhenghua Xiang, Zhi Li, Long Wang, Wenqian Li, Hao Gao, Jiayun Shao, Daxiang Wen, Weifeng Yu
The accumulation of unfolded or misfolded proteins in the endoplasmic reticulum (ER) lumen leads to ER stress, which is related to cellular reactive oxygen species (ROS) production. Neuropathic pain may result from spinal dorsal horn (SDH) ER stress. In this study, we examined the cause-effect relationship between ER stress and neuropathic pain using the spinal nerve ligation(SNL) rat model. We showed that ER stress was mutually promotive with oxidative stress during the process. We also tested the hypothesis that spinal sensitization arose from reduced activities of GABA-ergic interneurons and that spinal sensitization was mediated by SDH ER stress...
January 18, 2018: Pain
https://www.readbyqxmd.com/read/29351102/fatal-sickling-triggered-by-massive-foreign-particle-embolism-a-case-report-of-unrecognized-indwelling-venous-catheter-drug-abuse-in-sickle-cell-disease
#9
Christopher A Febres-Aldana, Lydia Hernandez Howard
Sickle cell disease (SCD) manifests itself with vaso-occlusive episodes leading to infarction. Placement of intravascular catheters provides a useful route for management of pain crises as well as other complications. However, catheter misuse is a commonly unrecognized problem, which can have lethal consequences. We present a case of fatal splenic sequestration/hyperhemolysis secondary to foreign body pulmonary and systemic embolization due to intravenous administration of hydromorphone pills in a young woman with SCD...
January 18, 2018: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29350647/rotator-cuff-calcific-tendinopathy-from-diagnosis-to-treatment
#10
Vito Chianca, Domenico Albano, Carmelo Messina, Federico Midiri, Giovanni Mauri, Alberto Aliprandi, Michele Catapano, Lorenzo Carlo Pescatori, Cristian Giuseppe Monaco, Salvatore Gitto, Anna Pisani Mainini, Angelo Corazza, Santi Rapisarda, Grazia Pozzi, Antonio Barile, Carlo Masciocchi, Luca Maria Sconfienza
Rotator cuff calcific tendinopathy (RCCT) is a very common condition caused by the presence of calcific deposits in the rotator cuff (RC) or in the subacromial-subdeltoid (SASD) bursa when calcification spreads around the tendons. The pathogenetic mechanism of RCCT is still unclear. It seems to be related to cell-mediated disease in which metaplastic transformation of tenocytes into chondrocytes induces calcification inside the tendon of the RC. RCCT is a frequent finding in the RC that may cause significant shoulder pain and disability...
January 19, 2018: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29350588/arguments-against-the-role-of-cortical-spreading-depression-in-migraine
#11
Piet Borgdorff
Cortical spreading depression (CSD) is a wave of increased electrocortical activity and vasodilation, followed by sustained decreased activity and prolonged vasoconstriction. Although the discovery of CSD has been ascribed to Leão, rather than vasoconstriction, he only observed a depression of neural activity combined with vasodilation, with much weaker stimulation than used by his followers. There is a longstanding belief that CSD underlies migraine aura, with its positive symptoms such as mosaic patterns and its negative symptoms such as scotoma, and a similar propagation speed and vasoreaction pattern...
January 19, 2018: Neurological Research
https://www.readbyqxmd.com/read/29350446/differential-gene-expression-in-trigeminal-ganglia-of-male-and-female-rats-following-chronic-constriction-of-the-infraorbital-nerve
#12
O A Korczeniewska, S Husain, J Khan, E Eliav, P Soteropoulos, R Benoliel
BACKGROUND: The mechanisms underlying sex-based differences in pain and analgesia are poorly understood. In this study, we investigated gene expression changes in trigeminal ganglia (TG) of male and female rats exposed to infraorbital nerve chronic constriction injury (IoN-CCI). METHODS: Somatosensory assessments were performed prior to IoN-CCI and at selected time points postsurgery. Selected gene expression changes were examined with real-time quantitative polymerase chain reaction (RT-PCR) in ipsilateral TG at 21 days postsurgery...
January 19, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29349901/inflammatory-back-pain-and-associated-disease-conditions-among-patients-with-chronic-low-back-pain-in-bangladesh
#13
Sabrina Yesmin, Syed Jamil Abdal, Aminur Rahman, Md Nazrul Islam, Alamgir Mustak Ahammad, Shamim Ahmed, Md Abu Shahin, Minhaj Rahim Chowdhury, Syed Atiqul Haq
AIM: Inflammatory back pain (IBP) is the earliest symptom of axial and other forms of spondyloarthritis (SpA). However, there are no published data on prevalence of IBP among patients suffering from chronic low back pain (CLBP) in Bangladesh. In this study, we estimated the prevalence of IBP and the subtypes of SpA in a tertiary hospital in Bangladesh. METHODS: This 1 year cross-sectional study was conducted among 240 CLBP patients in a rheumatology outpatient clinic...
January 18, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29349661/pkm2-is-involved-in-neuropathic-pain-by-regulating-erk-and-stat3-activation-in-rat-spinal-cord
#14
Binbin Wang, Siyuan Liu, Bingbing Fan, Xingguo Xu, Yonglin Chen, Rongxiang Lu, Zhongling Xu, Xiaojuan Liu
BACKGROUND: Pyruvate kinase isozymes M2 (PKM2), as a member of pyruvate kinase family, plays a role of glycolytic enzyme in glucose metabolism. It also functions as protein kinase in cell proliferation, signaling, immunity, and gene transcription. In this study, the role of PKM2 in neuropathic pain induced by chronic constriction injury (CCI) was investigated. METHODS: Rats were randomly grouped to establish CCI models. PKM2, extracellular regulated protein kinases (EKR), p-ERK, signal transducers and activators of transcription (STAT3), p-STAT3, phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) and p-PI3K/AKT proteins expression in spinal cord was examined by Western blot analysis...
January 18, 2018: Journal of Headache and Pain
https://www.readbyqxmd.com/read/29349031/modified-elmslie-trillat-procedure-for-distal-realignment-of-patella-tendon
#15
Ricardo Bastos Filho, Alberto Monteiro, Renato Andrade, M J S Fredrick Michael, Nuno Sevivas, Bruno Pereira, André Sarmento, João Espregueira-Mendes
Patellofemoral dysfunction, due to either a patellofemoral malalignment or patellar instability, is a complex and debilitating condition that significantly decreases the knee function. Conservative management may yield significant clinical outcomes; however, when morphologic anomalies are identified, the surgical approach should be employed. Hence, several surgical procedures have been described in the scientific literature aiming the correction of underlying extensor mechanism malalignments. Still, the rate of complications is higher than desirable...
December 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29348999/open-repair-of-quadriceps-tendon-with-suture-anchors-and-semitendinosus-tendon-allograft-augmentation
#16
Jorge Chahla, Nicholas N DePhillipo, Mark E Cinque, Nicholas I Kennedy, George F Lebus, Filippo Familiari, Gilbert Moatshe, Robert F LaPrade
Quadriceps tendinopathy in an increasingly recognized diagnosis can lead to quadriceps tendon rupture, especially in the older population. It can be caused by repeated micro trauma or also predisposed by systemic diseases such as diabetes mellitus and connective tissue disorders that can in turn lead to extensor mechanism deficits. Although a trial of conservative treatment is advocated, operative treatment should be performed in cases of persistent pain, extension deficit, or complete rupture of the tendon...
December 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29348279/-clinically-suspected-myocarditis-with-pseudoinfarct-presentation-complicated-with-left-ventricular-aneurysm
#17
Annick Haouzi, Ahmed Ahmed
A 51-year-old man presented with chest pain, high troponin level, inflammatory syndrome and ST-segment elevation in the anterior leads. While the transthoracic echocardiogram (TTE) showed anteroseptal hypokinesis and apical akinesis, the coronary angiogram was normal. Cardiac MR demonstrated a typical aspect of myocarditis (multiple areas of mid-myocardial late gadolinium enhancement, sparing the subendocardial layer, along with oedema). The initial diagnosis was clinically suspected myocarditis with pseudoinfarct presentation...
January 17, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29346771/rapid-turnover-of-cortical-ncam1-regulates-synaptic-reorganization-after-peripheral-nerve-injury
#18
Hyoung-Gon Ko, Jun-Hyeok Choi, Dong Ik Park, SukJae Joshua Kang, Chae-Seok Lim, Su-Eon Sim, Jaehoon Shim, Ji-Il Kim, Siyong Kim, Tae-Hyeok Choi, Sanghyun Ye, Jaehyun Lee, Pojeong Park, Somi Kim, Jeehaeh Do, Jihye Park, Md Ariful Islam, Hyun Jeong Kim, Christoph W Turck, Graham L Collingridge, Min Zhuo, Bong-Kiun Kaang
Peripheral nerve injury can induce pathological conditions that lead to persistent sensitized nociception. Although there is evidence that plastic changes in the cortex contribute to this process, the underlying molecular mechanisms are unclear. Here, we find that activation of the anterior cingulate cortex (ACC) induced by peripheral nerve injury increases the turnover of specific synaptic proteins in a persistent manner. We demonstrate that neural cell adhesion molecule 1 (NCAM1) is one of the molecules involved and show that it mediates spine reorganization and contributes to the behavioral sensitization...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346515/a-brain-based-pain-facilitation-mechanism-contributes-to-painful-diabetic-polyneuropathy
#19
Andrew R Segerdahl, Andreas C Themistocleous, Dean Fido, David L Bennett, Irene Tracey
The descending pain modulatory system represents one of the oldest and most fundamentally important neurophysiological mechanisms relevant to pain. Extensive work in animals and humans has shown how a functional imbalance between the facilitatory and inhibitory components is linked to exacerbation and maintenance of persistent pain states. Forward translation of these findings into clinical populations is needed to verify the relevance of this imbalance. Diabetic polyneuropathy is one of the most common causes of chronic neuropathic pain; however, the reason why ∼25-30% of patients with diabetes develop pain is not known...
January 15, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29346158/biomechanical-response-to-osteoarthritis-pain-treatment-may-impair-long-term-efficacy
#20
Katherine A Boyer
Pain has an important physiologic role and acts with and/or stimulates motor system adaptations to protect tissue from threats of damage. While clinically beneficial, removing the protective pain response may have negative consequence in osteoarthritis, a mechanically-mediated disease. We hypothesize motor system adaptations to joint pain and its treatment may impact osteoarthritis progression thereby limiting efficacy of pain therapies.
January 15, 2018: Exercise and Sport Sciences Reviews
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