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De Quervain

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https://www.readbyqxmd.com/read/27895323/elevated-cyp2c19-expression-is-associated-with-depressive-symptoms-and-hippocampal-homeostasis-impairment
#1
M M Jukić, N Opel, J Ström, T Carrillo-Roa, S Miksys, M Novalen, A Renblom, S C Sim, E M Peñas-Lledó, P Courtet, A Llerena, B T Baune, D J de Quervain, A Papassotiropoulos, R F Tyndale, E B Binder, U Dannlowski, M Ingelman-Sundberg
The polymorphic CYP2C19 enzyme metabolizes psychoactive compounds and is expressed in the adult liver and fetal brain. Previously, we demonstrated that the absence of CYP2C19 is associated with lower levels of depressive symptoms in 1472 Swedes. Conversely, transgenic mice carrying the human CYP2C19 gene (2C19TG) have shown an anxious phenotype and decrease in hippocampal volume and adult neurogenesis. The aims of this study were to: (1) examine whether the 2C19TG findings could be translated to humans, (2) evaluate the usefulness of the 2C19TG strain as a tool for preclinical screening of new antidepressants and (3) provide an insight into the molecular underpinnings of the 2C19TG phenotype...
November 29, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27881856/stress-glucocorticoids-and-memory-implications-for-treating-fear-related-disorders
#2
Dominique de Quervain, Lars Schwabe, Benno Roozendaal
Glucocorticoid stress hormones are crucially involved in modulating mnemonic processing of emotionally arousing experiences. They enhance the consolidation of new memories, including those that extinguish older memories, but impair the retrieval of information stored in long-term memory. As strong aversive memories lie at the core of several fear-related disorders, including post-traumatic stress disorder and phobias, the memory-modulating properties of glucocorticoids have recently become of considerable translational interest...
November 24, 2016: Nature Reviews. Neuroscience
https://www.readbyqxmd.com/read/27826460/percutaneous-release-of-the-first-dorsal-extensor-compartment-a-cadaver-study
#3
Ali Güleç, Faik Türkmen, Serdar Toker, Mehmet Ali Acar
BACKGROUND: To evaluate the efficiency of the percutaneous 18-G needle technique in releasing the fibro-osseous sheath over the first dorsal extensor compartment of the hand. METHODS: Using anatomic landmarks, percutaneous release was performed with an 18-G needle on 48 wrists of 24 cadavers. The specimens were then dissected and examined for the completeness of the first dorsal extensor compartment release and any tendon or neurovascular injuries. The tunnel length, number of abductor pollicis longus and extensor pollicis brevis tendons, presence of an intertendinous septum, and the effects of these parameters on percutaneous release were evaluated...
October 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27740460/a-comprehensive-approach-including-a-new-enlargement-technique-to-prevent-complications-after-de-quervain-tendinopathy-surgery
#4
D Perno-Ioanna, M Papaloïzos
The goal of this study was to evaluate the outcome of our surgical approach aimed at preventing complications following surgery for De Quervain tendinopathy. Our stepwise surgical procedure is described in detail. We reviewed 56 cases operated by a senior surgeon over 5years, and re-evaluated them with a minimum 15months' follow-up. Complications mentioned in the literature (poor wound healing, adhesions, nerve injury, incomplete decompression, tendon subluxation) were not present in any of the cases; the satisfaction rate was very high...
June 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27726753/mr-imaging-and-us-of-the-wrist-tendons
#5
Benjamin Plotkin, Srihari C Sampath, Srinath C Sampath, Kambiz Motamedi
The tendons of the wrist are commonly symptomatic. They can be injured, infected, or inflamed. Magnetic resonance imaging and ultrasonography are useful tools for evaluating the wrist. Pathologic conditions of the wrist tendons include de Quervain tenosynovitis, extensor carpi ulnaris tendinopathy, rheumatoid tenosynovitis, infectious synovitis, tendon tears, hydroxyapatite deposition disease, intersection syndrome, tenosynovial giant cell tumor, and fibroma of the tendon sheath. In this article, we review the normal appearance of the wrist tendons, discuss relevant anatomy, and give an overview of common pathologic conditions affecting the wrist tendons...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27710795/common-epigenetic-variation-in-a-european-population-of-mentally-healthy-young-adults
#6
Annette Milnik, Christian Vogler, Philippe Demougin, Tobias Egli, Virginie Freytag, Francina Hartmann, Angela Heck, Fabian Peter, Klara Spalek, Attila Stetak, Dominique J-F de Quervain, Andreas Papassotiropoulos, Vanja Vukojevic
DNA methylation represents an important link between structural genetic variation and complex phenotypes. The study of genome-wide CpG methylation and its relation to traits relevant to psychiatry has become increasingly important. Here, we analyzed quality metrics of 394,043 CpG sites in two samples of 568 and 319 mentally healthy young adults. For 25% of all CpGs we observed medium to large common epigenetic variation. These CpGs were overrepresented in open sea and shore regions, as well as in intergenic regions...
September 7, 2016: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/27693273/surgical-anatomy-of-the-first-extensor-compartment-a-systematic-review-and-comparison-of-normal-cadavers-vs-de-quervain-syndrome-patients
#7
Z-Hye Lee, J T Stranix, Lavinia Anzai, Sheel Sharma
PURPOSE: De Quervain syndrome or tenosynovitis is a common wrist pathology caused by stenosing tenosynovitis of the first dorsal compartment. Multiple studies have demonstrated significant anatomic variation within the first extensor compartment. METHODS: The terms "De Quervain's tenosynovitis" and "first extensor compartment anatomy" were comprehensively searched using the PubMed, MEDLINE, and Cochrane database. The presence of a septum within the first dorsal compartment, the number of APL (abductor pollicis longus), and EPB (extensor pollicis brevis) tendon slips were identified...
September 9, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27686396/de-quervain-s-thyroiditis-a-review-of-experience-with-surgery
#8
Rohit Ranganath, Manish A Shaha, Bin Xu, Jocelyn Migliacci, Ronald Ghossein, Ashok R Shaha
BACKGROUND: de Quervain's thyroiditis is an inflammatory condition of the thyroid mostly treated medically, rarely requiring surgical treatment. We intend to review the surgical experience with de Quervain's thyroiditis at a tertiary cancer center over a period of 22years. METHODS: A retrospective review of medical records from 1992 to 2014 at a tertiary cancer center was performed and all patients with a histopathological diagnosis of de Quervain's thyroiditis were included...
August 18, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27644128/glucocorticoid-administration-improves-aberrant-fear-processing-networks-in-spider-phobia
#9
Masahito Nakataki, Leila M Soravia, Simon Schwab, Helge Horn, Thomas Dierks, Werner Strik, Roland Wiest, Markus Heinrichs, Dominique J-F de Quervain, Andrea Federspiel, Yosuke Morishima
Glucocorticoids reduce phobic fear in patients with anxiety disorders. Previous studies have shown that fear-related activation of the amygdala can be mediated through the visual cortical pathway, which includes the fusiform gyrus, or through other pathways. However, it is not clear which of the pathways that activate the amygdala is responsible for the pathophysiology of a specific phobia and how glucocorticoid treatment alleviates fear processing in these neural networks. We recorded the brain activity with functional magnetic resonance imaging in patients with spider phobia, who received either 20 mg of cortisol or a placebo while viewing pictures of spiders...
October 12, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27616825/role-of-guided-ultrasound-in-the-treatment-of-de-quervain-tenosynovitis-by-local-steroid-infiltration
#10
Raja Shekar Danda, Jagannath Kamath, Nikil Jayasheelan, Prashanth Kumar
Ultrasound guidance for steroid injection in de Quervain disease is useful in identifying the presence of subcompartments and effectively injecting the drug into tendon sheath. We prospectively studied 50 patients with features of de Quervain disease to determine the effectiveness of ultrasound in positioning of needle for steroid injection and effectiveness of single versus multiple injections in the presence of subcompartments. Scalp vein set was inserted into the tendon sheath under ultrasound guidance and sterile conditions...
April 2016: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/27526430/-rarer-causes-of-thyrotoxicosis
#11
REVIEW
Robert Krysiak, Karolina Kowalcze, Bogusław Okopień
Thyrotoxicosis is a pathological syndrome in which tissue is exposed to excessive amounts of circulating thyroid hormones. Including its subclinical form, it is considered as one of the most frequent endocrine disorders in the general population. If not detected in a timely fashion, thyrotoxicosis can have serious health consequences. The most common forms of thyrotoxicosis include diffuse toxic goiter (Graves' disease), toxic multinodular goiter (Plummer's disease), and toxic adenoma (Goetsch's disease). The significant progress in the fields of hormonal assessment, imaging procedures and molecular biology made in recent years has brought about great improvement in the identification, differentiation and treatment of many other disorders associated with thyrotoxicosis...
2016: Przegla̧d Lekarski
https://www.readbyqxmd.com/read/27454511/osteoid-osteoma-of-the-radial-styloid-resembling-de-quervain-s-disease
#12
Zbigniew Chmiel
We describe a case of osteoid osteoma in the radial styloid of a 37-year old man mimicking de Quervain's disease. The exact diagnosis was made with CT examination and confirmed by histological evaluation of the tumour. The lesion was removed by curettage and symptoms were resolved rapidly thereafter. There was no sign of recurrence at one year follow-up.
February 2016: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/27418888/variations-in-postoperative-immobilization-following-common-hand-surgery-procedures
#13
Roberto Diaz, Edward Ebramzadeh, Jeffrey Yao
BACKGROUND: The aim was to investigate variations in the duration of postoperative immobilization for common hand surgery procedures and to determine whether there is any correlation between surgeon experience and duration of postoperative immobilization. METHODS: An anonymous cross-sectional survey was sent to the American Society for Surgery of the Hand asking the following questions: (1) number of years in practice and (2) duration of immobilization for 16 common hand surgery procedures...
March 2016: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/27183404/imaging-of-sports-related-hand-and-wrist-injuries-sports-imaging-series
#14
Eric Cockenpot, Guillaume Lefebvre, Xavier Demondion, Christophe Chantelot, Anne Cotten
Hand and wrist injuries are common occurrences in amateur and professional sports and many of them are sport-specific. These can be divided into two categories: traumatic injuries and overuse injuries. The aim of this article is to review the most common hand and wrist sports-related lesions. Acute wrist injuries are predominantly bone fractures, such as those of the scaphoid, hamate hook, and ulnar styloid. Ligament lesions are more challenging for radiologists and may lead to carpal instability if undiagnosed...
June 2016: Radiology
https://www.readbyqxmd.com/read/27128027/ultrasonography-guided-de-quervain-injection-accuracy-and-anatomic-considerations-in-a-cadaver-model
#15
Fraser J Leversedge, Ilvy H Cotterell, Brian Nickel, Megan Crosmer, Marc Richard, Eric Angermeier
INTRODUCTION: Confirmation of pertinent anatomy and accurate needle placement for de Quervain injection may improve outcomes and limit complications. We evaluated the accuracy of the first extensor compartment in regard to the following: (1) anatomic assessment, (2) needle placement without imaging guidance, and (3) ultrasonography-guided injection with priority for the extensor pollicis brevis subcompartment. METHODS: Anatomic assessment and ultrasonography-guided first extensor compartment injection was completed in 50 cadaver specimens...
June 2016: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/27069895/anomalous-bilateral-contribution-of-extensor-pollicis-longus-and-muscle-fusion-of-the-first-compartment-of-the-wrist
#16
Rodrigo César Rosa, Kennedy Martinez de Oliveira, Jorge Alfredo Léo, Bruno Adriano Borges Elias, Paulo Ricardo Dos Santos, Hildemberg Agostinho Rocha de Santiago
Knowledge of the anatomical variations of the muscles of the first dorsal compartments of the wrist is clinically relevant to De Quervain's tenosynovitis and to reconstructive surgeries. In the literature, there are many reports of the presence of multiple insertion tendons in the first dorsal compartment of the wrist, but few reports describe occurrences of fusion and muscle contributions. This case report describes an anomalous bilateral contribution of the extensor pollicis longus. This anomalous contribution was found through a slender auxiliary tendon that crossed laterally under the extensor retinaculum, entered the first dorsal compartment of the wrist and merged with the tendon of the extensor pollicis brevis muscle...
March 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/27040109/sex-differences-in-the-radial-grooves-in-the-first-extensor-compartment
#17
Ilke A Gurses, Rustu Turkay, Ercan Inci, Suna Ors, Yilmaz Onal, Sevda Ozel, Meltem Vural
OBJECTIVE: De Quervain tenosynovitis affects the first extensor compartment of the wrist and occurs more frequently in females. This high prevalence could not be explained by soft tissue. As the osseous anatomy has been mostly neglected, we aimed to compare the distal radius between the sexes. MATERIALS AND METHODS: We evaluated the presence of a bony ridge on the floor of the first extensor compartment on CT images with multiplanar imaging. RESULTS: We included 244 wrists (72 females, 172 males) in the study...
July 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27018604/hand-dominance-and-common-hand-conditions
#18
Kevin Lutsky, Nayoung Kim, Juana Medina, Mitchell Maltenfort, Pedro K Beredjiklian
The goals of this study were to (1) assess how frequently patients present for evaluation of common hand disorders in relation to hand dominance and (2) evaluate the effect of hand dominance on function in patients with these conditions. The authors hypothesized that (1) the majority of patients who seek evaluation would have a condition that affects the dominant hand, and (2) disability scores would be worse if the dominant hand is involved. They retrospectively reviewed the records of consecutive patients who presented for treatment to their institution with unilateral symptoms of 5 common disorders of the hand: carpal tunnel syndrome (CTS), de Quervain's tenosynovitis (DEQ), lateral epicondylitis (LE), hand osteoarthritis (OA), and trigger finger (TF)...
May 1, 2016: Orthopedics
https://www.readbyqxmd.com/read/26978740/a-common-ntrk2-variant-is-associated-with-emotional-arousal-and-brain-white-matter-integrity-in-healthy-young-subjects
#19
K Spalek, D Coynel, V Freytag, F Hartmann, A Heck, A Milnik, D de Quervain, A Papassotiropoulos
Dysregulation of emotional arousal is observed in many psychiatric diseases such as schizophrenia, mood and anxiety disorders. The neurotrophic tyrosine kinase receptor type 2 gene (NTRK2) has been associated with these disorders. Here we investigated the relation between genetic variability of NTRK2 and emotional arousal in healthy young subjects in two independent samples (n1=1171; n2=707). In addition, diffusion tensor imaging (DTI) data in a subgroup of 342 participants were used to identify NTRK2-related white-matter structure differences...
2016: Translational Psychiatry
https://www.readbyqxmd.com/read/26913767/ultrasonographic-evaluation-of-the-prevalence-of-an-intracompartmental-septum-in-patients-with-de-quervain-s-disease
#20
Junko Sato, Yoshinori Ishii, Hideo Noguchi
It has been reported that more patients with de Quervain's disease who had undergone surgical treatment had a septated dorsal compartment than did normal cadavers. The purpose of this study was to sonographically evaluate the prevalence of an intracompartmental septum in patients with de Quervain's disease and to compare the prevalence between groups categorized by sex, age, and peripartum status. The authors performed an ultrasonographic examination of 112 wrists from 103 patients with de Quervain's disease...
March 2016: Orthopedics
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