keyword
MENU ▼
Read by QxMD icon Read
search

Fascicle

keyword
https://www.readbyqxmd.com/read/28634148/iodine-and-freeze-drying-enhanced-high-resolution-microct-imaging-for-reconstructing-3d-intraneural-topography-of-human-peripheral-nerve-fascicles
#1
Liwei Yan, Yongze Guo, Jian Qi, Qingtang Zhu, Liqiang Gu, Canbin Zheng, Tao Lin, Yutong Yu, Zitao Zeng, Sha Yu, Shuang Zhu, Xiang Zhou, Xi Zhang, Yunfei Du, Zhi Yao, Yao Lu, Xiaolin Liu
BACKGROUND: The precise annotation and accurate identification of the topography of fascicles to the end organs are prerequisites for studying human peripheral nerves. NEW METHOD: In this study, we present a feasible imaging method that acquires 3D high-resolution (HR) topography of peripheral nerve fascicles using an iodine and freeze-drying (IFD) micro-computed tomography (microCT) method to greatly increase the contrast of fascicle images. RESULTS: The enhanced microCT imaging method can facilitate the reconstruction of high-contrast HR fascicle images, fascicle segmentation and extraction, feature analysis, and the tracing of fascicle topography to end organs, which define fascicle functions...
June 17, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28632950/fibroblastic-connective-tissue-nevus-clinicopathological-and-immunohistochemical-study-of-14-cases
#2
Ilaria Pennacchia, Heinz Kutzner, Dmitry V Kazakov, Thomas Mentzel
BACKGROUND: We present herein a series of 14 lesions showing overlapping features with the newly defined benign cutaneous mesenchymal neoplasm labelled as fibroblastic connective tissue nevus (FCTN). METHODS AND RESULTS: Eight patients were male and five were female, ranging in age from 1 to 56 years. Lesions appeared as isolated nodules or plaques on the trunk (7 cases), the limbs (4 cases) and the neck (2 cases). Histologically, all cases were composed of bundles of bland spindle cells of fibroblastic/myofibroblastic lineage irregularly branching within the reticular dermis and along fibrous septa in the subcutis...
June 20, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28630171/distinctive-left-ventricular-activations-associated-with-ecg-pattern-in-heart-failure-patients
#3
Nicolas Derval, Josselin Duchateau, Saagar Mahida, Romain Eschalier, Frederic Sacher, Joost Lumens, Hubert Cochet, Arnaud Denis, Xavier Pillois, Seigo Yamashita, Yuki Komatsu, Sylvain Ploux, Sana Amraoui, Adlane Zemmoura, Philippe Ritter, Mélèze Hocini, Michel Haissaguerre, Pierre Jaïs, Pierre Bordachar
BACKGROUND: In contrast to patients with left bundle branch block (LBBB), heart failure patients with narrow QRS and nonspecific intraventricular conduction delay (NICD) display a relatively limited response to cardiac resynchronization therapy. We sought to compare left ventricular (LV) activation patterns in heart failure patients with narrow QRS and NICD to patients with LBBB using high-density electroanatomic activation maps. METHODS AND RESULTS: Fifty-two heart failure patients (narrow QRS [n=18], LBBB [n=11], NICD [n=23]) underwent 3-dimensional electroanatomic mapping with a high density of mapping points (387±349 LV)...
June 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28628683/understanding-the-shape-of-forehead-lines
#4
Milad Moqadam, Konstantin Frank, Christina Handayan, Mustafa Hakami, Fahd Benslimane, Robert H Gotkin, Neil S Sadick, Sebastian Cotofana
<p>Background: Individualized neuromodulator injections of the forehead are increasingly important to maximize patient safety and satisfaction and to yield the best aesthetic outcome. To assess the location of maximal muscle contraction, it would beneficial to relate the shape and location of the forehead lines to the morphology of the underlying frontalis muscle.</p> <p>Materials and Methods: We investigated the shape of forehead lines and their relationship to the morphology of the underlying frontalis muscle using anatomic dissection in a sample of 31 human body donors, with a mean age at death of 77...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28610336/first-record-of-a-new-epibionts-suctorian-ciliate-tokophrya-huangmeiensis-sp-n-ciliophora-phyllopharyngea-from-redclaw-crayfish-cherax-quadricarinatus-von-martens-1868
#5
Urfa Bin Tahir, Qiong Deng, Sen Li, Yang Liu, Zhe Wang, Zemao Gu
A new suctorian ciliate, Tokophrya huangmeiensis sp. n. was isolated from the carapace of redclaw crayfish Cherax quadricarinatus, during investigation of fish ciliates diversity in freshwater aquaculture of Hubei, China. The zooids of newly isolated ciliate were found aggregated into colonies on stalks of another ciliate Epistylis. The adults of this newly found species were characterized by an elongated pyramidal shaped and corrugated cell body with two fascicles of tentacles on the apical part of cell body...
May 22, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610132/nereididae-annelida-phyllodocida-of-the-persian-gulf-and-gulf-of-oman-including-description-of-two-new-species-and-11-new-records
#6
Alieh Bonyadi-Naeini, Nasrullah Rastegar-Pouyani, Eskandar Rastegar-Pouyani, Christopher J Glasby, Hassan Rahimian
Currently, only 31 nereidid species are known from the Persian Gulf and Gulf of Oman. The present study was carried out in order to investigate the poorly known diversity of nereidid polychaetes from seas of the southern coasts of Iran. Specimens were collected from 23 locations along the intertidal zones of the two water bodies. Among the 26 species found: two are new, and are described here, including Simplisetia qeshmensis sp. nov. and Neanthes biparagnatha sp. nov.; 11 are new geographical records. Neanthes biparagnatha sp...
March 17, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609975/-i-sternaspis-i-i-chilensis-i-n-sp-a-new-species-from-austral-chilean-channels-and-fjords-annelida-sternaspidae
#7
Oscar Díaz-Díaz, Nicolás Rozbaczylo
Sternaspis chilensis n. sp. is described based on specimens collected in channels and fjords of southern Chile and previously identified as Sternaspis scutata (Ranzani, 1817), originally described from the Meditarrean Sea. Sternaspis chilensis n. sp. is described based on the features of the shield with anterior margins rounded and anterior depression shallow; marginal shield chaetal fascicles arranged with an inverted C-shaped pattern; and distribution of the integument papillae. Sternaspis chilensis is widely distributed in the Magellan Province from Estero Reloncaví (41°32'54"S, 72°19'48"W) to Strait of Magellan (53°34'S, 70°04'W), between 50 and 515 m depth...
April 12, 2017: Zootaxa
https://www.readbyqxmd.com/read/28589169/partial-duplication-of-dhh-causes-minifascicular-neuropathy-a-novel-mutation-detection-of-dhh
#8
Naoko Saito Sato, Risa Maekawa, Hiroyuki Ishiura, Jun Mitsui, Hiroya Naruse, Shin-Ichi Tokushige, Kazuma Sugie, Genshu Tate, Jun Shimizu, Jun Goto, Shoji Tsuji, Yasushi Shiio
Minifascicular neuropathy (MN) is an extremely rare developmental malformation in which peripheral nerves are composed of many small fascicles. Only one patient with MN with 46XY gonadal dysgenesis (GD) was found to carry a mutation affecting the start codon in desert hedgehog (DHH). We identified an identical novel rearrangement mutation of DHH in two consanguineous families with MN, confirming mutations in DHH cause MN with 46XY GD. The patients with the 46XY karyotype developed GD, whereas a patient with the 46XX karyotype did not...
June 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28581678/ttn-genotype-is-associated-with-fascicle-length-and-marathon-running-performance
#9
Georgina K Stebbings, Alun G Williams, Adam J Herbert, Sarah J Lockey, Shane M Heffernan, Robert M Erskine, Christopher I Morse, Stephen H Day
Titin provides a molecular blueprint for muscle sarcomere assembly and sarcomere length can vary according to titin isoform expression. If variations in sarcomere length influence muscle fascicle length, this may provide an advantage for running performance. Thus the aim of this study was to investigate if the titin (TTN) rs10497520 polymorphism was associated with muscle fascicle length in recreationally active men (RA; n = 137) and marathon personal best time in male marathon runners (MR; n = 141). Fascicle length of the vastus lateralis was assessed in vivo using B-mode ultrasonography at 50% of muscle length in RA...
June 5, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28580243/reconstruction-of-the-popliteomeniscal-fascicles-for-treatment-of-recurrent-subluxation-of-the-lateral-meniscus
#10
Jun Suganuma, Yutaka Inoue, Hideaki Tani, Tadashi Sugiki, Tomoki Sassa, Reo Shibata
Recurrent subluxation of the lateral meniscus is characterized by episodes of mechanical locking of the knee joint. To completely preclude the posterior segment of the lateral meniscus from undergoing anterior dislocation during deep knee flexion, the structures to which it is attached need to be relatively taut. The posterosuperior popliteomeniscal fascicle retains its tension during deep knee flexion; therefore, reconstruction of the posterosuperior and anteroinferior popliteomeniscal fascicles was performed with an autograft harvested from the iliotibial band...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28577041/determining-skeletal-muscle-architecture-with-laplacian-simulations-a-comparison-with-diffusion-tensor-imaging
#11
Geoffrey G Handsfield, Bart Bolsterlee, Joshua M Inouye, Robert D Herbert, Thor F Besier, Justin W Fernandez
Determination of skeletal muscle architecture is important for accurately modeling muscle behavior. Current methods for 3D muscle architecture determination can be costly and time-consuming, making them prohibitive for clinical or modeling applications. Computational approaches such as Laplacian flow simulations can estimate muscle fascicle orientation based on muscle shape and aponeurosis location. The accuracy of this approach is unknown, however, since it has not been validated against other standards for muscle architecture determination...
June 2, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28574416/richly-innervated-soft-tissues-covering-the-superficial-aspect-of-the-extensor-origin-in-patients-with-chronic-painful-tennis-elbow-implication-for-treatment
#12
C Spang, H Alfredson
BACKGROUND: Tennis elbow is difficult to treat. The results of surgical treatments are not convincing. Treatment studies on Achilles and patellar tendinopathy targeting the richly innervated and vascularized soft tissues outside the tendon have shown promising outcomes. The innervation patterns in the fibrous/fatty tissues superficially to the elbow extensor origin have not been clarified. METHODS: Nine tissue specimens from the fibrous/fatty tissue covering the extensor origin was taken from seven patients (mean age: 45 years) undergoing surgical treatment for chronic painful tennis elbow...
June 1, 2017: Journal of Musculoskeletal & Neuronal Interactions
https://www.readbyqxmd.com/read/28573027/operating-length-and-velocity-of-human-m-vastus-lateralis-fascicles-during-vertical-jumping
#13
Maria Elissavet Nikolaidou, Robert Marzilger, Sebastian Bohm, Falk Mersmann, Adamantios Arampatzis
Humans achieve greater jump height during a counter-movement jump (CMJ) than in a squat jump (SJ). However, the crucial difference is the mean mechanical power output during the propulsion phase, which could be determined by intrinsic neuro-muscular mechanisms for power production. We measured M. vastus lateralis (VL) fascicle length changes and activation patterns and assessed the force-length, force-velocity and power-velocity potentials during the jumps. Compared with the SJ, the VL fascicles operated on a more favourable portion of the force-length curve (7% greater force potential, i...
May 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28567340/light-and-electron-microscopic-study-of-the-medial-collateral-ligament-epiligament-tissue-in-human-knees
#14
Georgi P Georgiev, Alexandar Iliev, Georgi Kotov, Plamen Kinov, Svetoslav Slavchev, Boycho Landzhov
AIM: To examine the normal morphology of the epiligament tissue of the knee medial collateral ligament (MCL) in humans. METHODS: Several samples of the mid-substance of the MCL of the knee joint from 7 fresh human cadavers (3 females and 4 males) were taken. Examination of the epiligament tissue was conducted by light microscopy and photomicrography on semi-thin sections of formalin fixed paraffin-embedded blocks that were routinely stained with haematoxylin and eosin, Mallory stain and Van Gieson's stain...
May 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28567306/mr-micro-neurography-and-a-segmentation-protocol-applied-to-diabetic-neuropathy
#15
P F Felisaz, G Maugeri, V Busi, R Vitale, F Balducci, S Gitto, P Leporati, A Pichiecchio, M Baldi, F Calliada, L Chiovato, S Bastianello
The aim of this study was to assess with MRI morphometric ultrastructural changes in nerves affected by diabetic peripheral neuropathy (DPN). We used an MR micro-neurography imaging protocol and a semiautomated technique of tissue segmentation to visualize and measure the volume of internal nerve components, such as the epineurium and nerve fascicles. The tibial nerves of 16 patients affected by DPN and of 15 healthy volunteers were imaged. Nerves volume (NV), fascicles volume (FV), fascicles to nerve ratio (FNR), and nerves cross-sectional areas (CSA) were obtained...
2017: Radiology Research and Practice
https://www.readbyqxmd.com/read/28567027/transient-vestibulopathy-in-wallenberg-s-syndrome-pathologic-analysis
#16
Jorge C Kattah, Ali S Saber Tehrani, Sigrun Roeber, Meena Gujrati, Sarah E Bach, David E Newman Toker, Ari M Blitz, Anja K E Horn
OBJECTIVE: To report an unusual lateral medullary stroke (LMS) associated with transient unidirectional horizontal, nystagmus, and decreased horizontal vestibulo-ocular reflex (h-VOR) gain that mimicked a peripheral vestibulopathy. MRI suggested involvement of caudal medial vestibular nucleus (MVN); however, the rapid resolution of the nystagmus and improved h-VOR gain favored transient ischemia without infarction. Decreased h-VOR gain is expected with peripheral vestibular lesions within the labyrinth or superior vestibular nerve; less frequently lateral pontine strokes involving the vestibular root entry, the vestibular fascicle, or neurons within the MVN may be responsible...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28556465/biphasic-axillary-synovial-sarcoma-diagnosed-by-preoperative-fine-needle-aspiration-cytology
#17
Cristina Díaz Del Arco, Mª Jesús Fernández Aceñero
Synovial sarcoma (SS) is a soft-tissue sarcoma which usually occurs in lower extremities. Less than 20 cases of SS located in shoulder or axillary region have been reported, and these studies describe histopathological features. We report a case of axillary SS diagnosed by fine-needle aspiration cytology, immunocytochemistry, and molecular techniques performed on cytology smears. A 48-year-old woman presented with a palpable and well-defined axillary mass which measured 4 cm. On-site smears showed high cellularity with spindle cells, and a mesenchymal tumor was suspected...
May 28, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28556181/ultrasonography-in-neuralgic-amyotrophy-sensitivity-spectrum-of-findings-and-clinical-correlations
#18
Zsuzsanna ArÁnyi, Anita Csillik, Katalin DéVay, Maja Rosero, PéTer Barsi, Josef BÖHm, Thomas Schelle
INTRODUCTION: The aim of this study was to assess the value of ultrasonography in neuralgic amyotrophy. METHODS: Fifty-three patients with 70 affected nerves were examined with high-resolution ultrasound. RESULTS: The most commonly affected nerve was the anterior interosseous (23%). Ultrasonographic abnormalities in the affected nerves, rather than in the brachial plexus, were observed, with an overall sensitivity of 74%. Findings included the swelling of the nerve/fascicle with or without incomplete/complete constriction and rotational phenomena (nerve torsion and fascicular entwinement)...
May 26, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28555306/prognostic-value-of-perineural-invasion-in-resected-gastric-cancer-patients-according-to-lauren-histotype
#19
Lorenzo De Franco, Daniele Marrelli, Costantino Voglino, Carla Vindigni, Francesco Ferrara, Giulio Di Mare, Livio Iudici, Mario Marini, Franco Roviello
The purpose of this study is to investigate perineural invasion (PNI) as a prognostic factor in gastric cancer patients. 455 patients submitted to extended (D2 or more) lymphadenectomy (median number of 39 retrieved lymph nodes, range: 15-140) between 1995 and 2012 were retrospectively studied. Patients were categorized in two groups according to the PNI status, and PNI positivity was assessed in presence of cancer cells in the perinerium or the neural fascicles using hematoxylin and eosin staining. Median follow-up for surviving patients was 80...
May 30, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28548976/effect-of-prior-injury-on-changes-to-biceps-femoris-architecture-across-an-afl-season
#20
Ryan G Timmins, Matthew N Bourne, Jack T Hickey, Nirav Maniar, Paul J Tofari, Morgan D Williams, David A Opar
PURPOSE: To assess in-season alterations of biceps femoris long head (BFlh) fascicle length in elite Australian footballers with and without a history of HSI. METHODS: Thirty elite Australian football players were recruited. Twelve had a history of unilateral HSI. Eighteen had no HSI history. All had their BFlh architecture assessed at approximately monthly intervals, six times across a competitive season. RESULTS: The previously injured limb's BFlh fascicles increased from the start of the season and peaked at week 5...
May 25, 2017: Medicine and Science in Sports and Exercise
keyword
keyword
9410
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"