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https://www.readbyqxmd.com/read/29781312/diterpenoid-alkaloids-from-delphinium-naviculare-var-lasiocarpum-with-their-antifeedant-activity-on-spodoptera-exigua
#1
Lianhai Shan, Lin Chen, Feng Gao, Xianli Zhou
A new lycoctonine diterpenoid alkaloid navicularine, along with eighteen known diterpenoid alkaloids, were isolated from the whole plant of Delphinium naviculare var. lasiocarpum. Their structures were elucidated on the base of extensive spectroscopic analysis (HR-ESI-MS and NMR) and comparison with data reported in the literature. Most of alkaloids were tested for their antifeedant activity against larvae of Spodoptera exigua (Hübner). The compound shawurensine showed considerably potent antifeedant activity (EC50 = 0...
May 21, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29780837/foot-kinematics-differ-between-runners-with-and-without-a-history-of-navicular-stress-fractures
#2
James Becker, Stanley James, Louis Osternig, Li-Shan Chou
Background: A navicular stress fracture (NSF) is a common and high-risk injury in distance runners. It is not clear whether there are differences in foot structure and function between runners who have and those who have not sustained an NSF. Purpose/Hypothesis: This study compared foot structure, range of motion, and biomechanics between runners with a history of unilateral NSFs and runners who had never sustained this injury. The hypothesis was that runners with a history of NSFs will have less dorsiflexion and subtalar range of motion in a clinical examination and greater rearfoot eversion and higher eversion velocity while running than either the noninvolved feet or healthy controls...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29768332/short-term-effects-of-customized-arch-support-insoles-on-symptomatic-flexible-flatfoot-in-children-a-randomized-controlled-trial
#3
Ru-Lan Hsieh, Hui-Ling Peng, Wen-Chung Lee
BACKGROUND: Limited evidence is available regarding the effects of insoles on pediatric flexible flatfoot because of the heterogeneity and low methodological quality of previous studies. The purpose of this prospective trial is to examine the short-term effects of customized arch support insoles on symptomatic flexible flatfoot in children by using the International Classification of Functioning, randomized controlled Disability, and Health (ICF) framework. METHODS: This study was conducted in a rehabilitation outpatient clinic of a teaching hospital...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29765178/gender-difference-in-factors-affecting-the-medial-longitudinal-arch-height-of-the-foot-in-healthy-young-adults
#4
Katsuhito Nagano, Risako Okuyama, Natsuki Taniguchi, Tomoki Yoshida
[Purpose] Medial longitudinal arch (MLA) height is associated with various injuries and diseases and gender differences, if any. This study aimed to examine factors affecting the MLA height associated with gender differences in healthy subjects with no orthopedic disorders. [Subjects and Methods] This study included 36 healthy adults (19 males, 17 females; mean age, 21.8 ± 3.6 years; body mass index, 21.1 ± 2.0 kg/m2 ). Their height, body weight, foot length, muscle strength of the tibialis posterior muscle (TPM), toe-gripping strength, hallux valgus angle, inversion microdactylia angle, angle of leg-heel alignment, femoro-tibial angle, and navicular height were measured...
May 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29750845/ultrasonographic-variations-are-present-in-the-distal-sesamoidean-impar-ligament-of-clinically-sound-horses
#5
Jessica Lauren MacDonald, Ruth-Anne Richter, Christine L Wimer
Ultrasonography is an established diagnostic test for evaluating horses with foot pain due to suspected podotrochlear apparatus pathology. However, variations from the previously reported normal appearance of the distal sesamoidean impar ligament have not always coincided with lameness. The objective of this prospective, cross-sectional, descriptive study was to characterize variations in the ultrasonographic appearance of the distal sesamoidean impar ligament in sound horses using the transcuneal approach...
May 11, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29748108/the-sensitivity-of-thresholds-by-ground-reaction-force-and-postural-stability-in-subjects-with-and-without-navicular-drop
#6
Paul S Sung
Understanding plantar pressure changes is an important component of the functional evaluation of subjects with flat foot. However, the altered postural control determined by the threshold from the vertical ground reaction force (GRF) requires clarification. The purpose of our study was to investigate the various GRF thresholds in subjects with and without flat foot during 1-leg standing. We included 34 control subjects and 30 subjects with flat foot in the present study. They performed the 1-leg standing test for 30 seconds, with the contralateral hip and knee flexed approximately 90°...
May 7, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29713385/a-minimal-markerset-for-three-dimensional-foot-function-assessment-measuring-navicular-drop-and-drift-under-dynamic-conditions
#7
Patric Eichelberger, Angela Blasimann, Nicole Lutz, Fabian Krause, Heiner Baur
Background: The validity of predicting foot pronation occurring mainly at the midfoot by surrogate measures from the rearfoot, like eversion excursion, is limited. The dynamic navicular mobility in terms of vertical navicular drop ( dNDrop ) and medial navicular drift ( dNDrift ) may be regarded as meaningful clinical indicators to represent overall foot function. This study aimed to develop a minimal approach to measure the two parameters and to examine their intra- and interday reliability during walking...
2018: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29707844/additional-palmaroproximal-palmarodistal-oblique-radiographic-projections-improve-accuracy-of-detection-and-characterization-of-equine-flexor-cortical-lysis
#8
Sherry A Johnson, Myra F Barrett, David D Frisbie
Radiographic flexor cortical lysis indicates advanced degenerative change and its earlier recognition may improve case outcome. Aims of this prospective, diagnostic accuracy study were to determine effects of radiographic beam angle and observer on accuracy of lesion detection. The sample included 36 limbs from 31 horses. Palmaroproximal-palmarodistal oblique (skyline) radiographs were acquired at standard (n = 38) and more shallow (alternate) angles (n = 58). Images were independently reviewed by four experience levels of five observers each (n = 20) for the presence and severity of flexor cortical lysis...
April 29, 2018: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29668710/chloroplast-variation-is-incongruent-with-classification-of-the-australian-bloodwood-eucalypts-genus-corymbia-family-myrtaceae
#9
Tanja M Schuster, Sabrina D Setaro, Josquin F G Tibbits, Erin L Batty, Rachael M Fowler, Todd G B McLay, Stephen Wilcox, Peter K Ades, Michael J Bayly
Previous molecular phylogenetic analyses have resolved the Australian bloodwood eucalypt genus Corymbia (~100 species) as either monophyletic or paraphyletic with respect to Angophora (9-10 species). Here we assess relationships of Corymbia and Angophora using a large dataset of chloroplast DNA sequences (121,016 base pairs; from 90 accessions representing 55 Corymbia and 8 Angophora species, plus 33 accessions of related genera), skimmed from high throughput sequencing of genomic DNA, and compare results with new analyses of nuclear ITS sequences (119 accessions) from previous studies...
2018: PloS One
https://www.readbyqxmd.com/read/29627930/flexor-digitorum-longus-tendon-transfer-to-the-navicular-tendon-to-tendon-repair-is-stronger-compared-with-interference-screw-fixation
#10
Daniel Marsland, Joanna M Stephen, Toby Calder, Andrew A Amis, James D F Calder
PURPOSE: To assess whether early rehabilitation could be safe after flexor digitorum longus (FDL) tendon transfer, the current biomechanical study aimed to measure tendon displacement under cyclic loading and load to failure, comparing a traditional tendon-to-tendon (TT) repair with interference screw fixation (ISF). METHODS: 24 fresh-frozen cadaveric below knee specimens underwent FDL tendon transfer. In 12 specimens a TT repair was performed via a navicular bone tunnel...
April 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29624012/comparison-of-pathological-lesions-in-navicular-bone-os-sesamoideum-distale-and-analysis-of-remodelling-capacity-in-warmblood-and-coldblood-horses
#11
M Komosa, J Włodarek, M Dzierzęcka, A Nienartowicz-Zdrojewska, M Tołkacz
The problem of navicular bone lesions is better understood in warmblood horses. The aim of our research was to compare pathologic lesions of navicular bone of different types of horses divided into age groups. An extra goal was to compare radiographs with anatomical status of navicular bone dissected from the hoof capsule. The study group included 161 horses, out of which 100 individuals were warmbloods, and 61 - coldbloods. In total 280 navicular bones were analysed. The flexor surface, distal border fragments, enthesophytes and the process of obliteration of nutrient foramina were analysed...
March 2018: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29601967/tarsal-coalition-in-paediatric-patients
#12
REVIEW
P-L Docquier, P Maldaque, M Bouchard
Tarsal coalition is due to failure of segmentation between two or more foot bones during embryological development at a site where the joint cleft fails to develop. Depending on the nature of the tissue connecting the bones, the abnormality is a syndesmosis, synchondrosis, or synostosis. Although the coalition exists at birth, synostosis usually develops only late during growth. Talo-calcaneal and calcaneo-navicular coalitions account for over 90% of all cases of tarsal coalition. The joint at the site of the coalition is stiff...
March 27, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29573666/foot-posture-is-associated-with-plantar-pressure-during-gait-a-comparison-of-normal-planus-and-cavus-feet
#13
Andrew K Buldt, Saeed Forghany, Karl B Landorf, Pazit Levinger, George S Murley, Hylton B Menz
BACKGROUND: Variations in foot posture, such as pes planus (low medial longitudinal arch) or pes cavus (high medial longitudinal arch) are associated with some lower limb injuries. However, the mechanism that links foot posture to injury is not clear. Research question The aim of this study was to compare plantar pressure between healthy individuals with normal, planus or cavus feet. METHODS: Ninety-two healthy volunteers (aged 18 to 45) were classified as either normal (n = 35), pes planus (n = 31) or pes cavus (n = 26) based on the Foot Posture Index, Arch Index and normalised navicular height truncated...
March 5, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29554967/tiludronate-and-clodronate-do-not-affect-bone-structure-or-remodeling-kinetics-over-a-60-day-randomized-trial
#14
Heather A Richbourg, Colin F Mitchell, Ashley N Gillett, Margaret A McNulty
BACKGROUND: Tiludronate and clodronate are FDA-approved bisphosphonate drug therapies for navicular disease in horses. Although clinical studies have determined their ability to reduce lameness associated with skeletal disorders in horses, data regarding the effect on bone structure and remodeling is lacking. Additionally, due to off-label use of these drugs in young performance horses, effects on bone in young horses need to be investigated. Therefore, the purpose of this randomized, experimental pilot study was to determine the effect of tiludronate and clodronate on normal bone cells, structure and remodeling after 60 days in clinically normal, young horses...
March 20, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29553909/modified-abaxial-approach-for-resection-of-the-distal-sesamoid-bone-and-distal-interphalangeal-joint-while-preserving-the-digital-flexor-tendons-of-three-angus-bulls-with-septic-arthritis
#15
Sarel R van Amstel, David E Anderson, Ricardo Videla
CASE DESCRIPTION 3 Angus bulls, aged 2 to 3 years, with severe lameness of 2 to 4 weeks' duration and swelling proximal to the coronary band of the affected limb were evaluated after failing to respond to antimicrobial treatment. CLINICAL FINDINGS Septic arthritis of a distal interphalangeal joint (DIPJ) was diagnosed in all 3 bulls on the basis of results of a physical examination, radiographic and ultrasonographic evaluations of the affected foot, and cytologic evaluation of synovial fluid from the affected DIPJ...
April 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29529705/video-assisted-subcutaneous-destruction-of-the-sinus-tract-with-vessel-loop-drainage-as-minimally-invasive-surgical-treatment-for-pilonidal-sinus-disease
#16
Michael Korenkov
The video-assisted subcutaneous destruction of the sinus tract (VADST) is a novel, minimally-invasive technique for the treatment of pilonidal sinus disease (PSD). This is an advancement of the previously described subcutaneous destruction of the sinus tract and the removal of hairs as well as the long-term vessel-loop drainage of the wound channel (DST). Although the first results of this operation seemed to be promising, some of my colleagues felt that the blind approach to this procedure could be its potential "weak point"...
March 12, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29493165/-resources-and-usage-status-of-tibetan-medicinal-plant-bangga
#17
Zhi-Min Liu, Ji-Feng Zhao, Song-Yun Qin, Xiang Liu, Chang-Hua Wang, Zhi-Wei Zhang, Wei-Zao Luo, Guo-Yue Zhong
The study is aimed to clarify the actual original plant, find out the usage status and the resource distribution of the Tibetan medicinal plant "Bangga". By using the way of the literatures survey, interview and investigation, it found out that the actual original plant of the Tibetan medicinal plant "Bangga" were the whole dried plant or the aerial part of Aconitum tanguticum or A. naviculare of Ranunculaceae, among which A. tanguticummainly distributed in Sichuan, Gansu, Qinghai, Tibet (Qamdo), and A...
December 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29482786/surgical-management-navicular-and-cuboid-fractures
#18
REVIEW
J Randolph Clements, François Dijour, Wesley Leong
The tarsal navicular is a critical component of the foot's medial longitudinal arch. Injuries to the navicular have significant long-term functional consequences. In addition to stress fractures, acute injuries to the navicular include acute avulsion, tuberosity, and body fractures. Nonoperative treatment is the mainstay for avulsion injuries and nondisplaced body fractures. Open reduction and internal fixation is performed to achieve anatomic reduction in the other situations. Common complications following operative intervention include pain, stiffness, post-traumatic arthritis, avascular necrosis, nonunion, and hindfoot deformity...
April 2018: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/29437059/a-new-and-reliable-classification-system-for-fractures-of-the-navicular-and-associated-injuries-to-the-midfoot
#19
M J Petrie, C M Blakey, C Chadwick, H G Davies, C M Blundell, M B Davies
AIMS: Fractures of the navicular can occur in isolation but, owing to the intimate anatomical and biomechanical relationships, are often associated with other injuries to the neighbouring bones and joints in the foot. As a result, they can lead to long-term morbidity and poor function. Our aim in this study was to identify patterns of injury in a new classification system of traumatic fractures of the navicular, with consideration being given to the commonly associated injuries to the midfoot...
February 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29436477/combat-related-foot-injuries-impact-on-gait-and-functional-outcome
#20
Loes G M de Kruijff, M Prins, A van der Krans, R Hoencamp, P van der Wurff
INTRODUCTION: Prior to deployment of the Netherlands Army Task Force Urozgan in Afghanistan, the Dutch Military and civilian healthcare systems had limited experience in treating blast injuries and their long-term consequences. This meant that guidelines for treatment and rehabilitation were lacking. The aim of this cohort study was to quantify kinematic and kinetic abnormalities in service members with foot injuries in relation to functional outcome using gait analysis. METHOD: In nine service members with combat-related talus, calcaneus and/or navicular bone (TCN) fractures and nine controls, gait parameters were measured using Gait Real-Time Analysis Interactive Lab system...
February 7, 2018: Journal of the Royal Army Medical Corps
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