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Joint Disorders Research

00:55 EDT 16th July 2018 | BioPortfolio

IL-17 in the immunopathogenesis of spondyloarthritis.

Spondyloarthritis (SpA) is a term that refers to a group of inflammatory diseases that includes psoriatic arthritis, axial SpA and nonradiographic axial SpA, reactive arthritis, enteropathic arthritis and undifferentiated SpA. The disease subtypes share clinical and immunological features, including joint inflammation (peripheral and axial skeleton); skin, gut and eye manifestations; and the absen...

T-based tissue segmentation to assess knee joint inflammation and reactive bone formation assessed by F-FDG and F-NaF PET/CT: Effects of age and BMI.

This study was conducted to determine the role of computed tomography (CT)-based segmentation methodology to semi-quantify the degree of inflammation and reactive bone formation in the knee joints by fluorine-18-fluorodeoxyglucose (F-FDG) and F-sodium fluoride positron emission tomography/CT (F-NaF PET/CT) imaging, respectively. Furthermore, we assessed the impact of aging and body mass index (BMI...

Erdheim-Chester disease diagnosed by Tc-MDP bone scintigraphy and brief literature review.

Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis with lipid-laden macrophages and fibrosis. Although ECD is a multisystemic disease, the most common finding is sclerotic bone involvement in the diametaphyseal regions of bilateral distal femur and in proximal and distal tibia. We present a 40 years old woman who for the last two years had various systemic symptoms, especial...

Muscle fatigue in response to low-load blood flow-restricted elbow-flexion exercise: are there any sex differences?

This study aimed to determine whether men and women display a different magnitude of muscle fatigue in response to high-load (HL) and low-load blood flow-restricted (LLBFR) elbow-flexion exercise. We also explored to which extent both exercise protocols induce similar levels of muscle fatigue (i.e., torque decrement).

Photodynamic and photobiological effects of light-emitting diode (LED) therapy in dermatological disease: an update.

Benefit deriving from the use of light is known since ancient time, but, only in the last decades of twentieth century, we witnessed the rapid expansion of knowledge and techniques. Light-emitted diode (LED)-based devices represent the emerging and safest tool for the treatment of many conditions such as skin inflammatory conditions, aging, and disorders linked to hair growth. The present work rev...

Multigroup latent class model of musculoskeletal pain combinations in children/adolescents: identifying high-risk groups by gender and age.

To investigate the combinations of Musculoskeletal pain (MSP) (neck, shoulder, upper and low back pain) among a sample of Iranian school children.

Prevalence of overlap of antineutrophil cytoplasmic antibody associated vasculitis with systemic autoimmune diseases: an unrecognized example of poliautoimmunity.

We aimed to estimate the frequency of overlap of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) with systemic autoimmune diseases. Retrospective single-center study to identify patients with AAV diagnosis and concomitant autoimmune systemic diseases, simultaneously, before or after the diagnosis of AAV. Sociodemographic characteristics, such as comorbidities; follow-up time...

Quantifying the Stiffness of Achilles Tendon: Intra- and Inter-Operator Reliability and the Effect of Ankle Joint Motion.

BACKGROUND The objectives of the present study were to examine the intra- and inter-operator reliability of the MyotonPRO device in quantifying the stiffness of the Achilles tendon and the device's ability to examine the modulation in stiffness of the Achilles tendon during ankle joint flexion. MATERIAL AND METHODS Twenty asymptomatic participants (10 males and 10 females; mean age: 25.0±3.1 year...

Nano-evidence for Joint Microbleeds in Hemophilia Patients.

The concept of joint microbleeding in hemophilia patients was first proposed over 10 years ago. This was based on unexpected abnormalities found in medical imaging studies of asymptomatic joints. Since then, there have been no published studies confirming the presence of joint microbleeds. This critique will review the evidence for and against joint microbleeding in hemophilia patients and the pot...

Two-Plane Assessment of Knee Muscles Isometric and Isokinetic Torques After Anterior Cruciate Ligament Reconstruction.

BACKGROUND We tested the hypothesis that, in patients participating in 17 weeks of postoperative physiotherapy after anterior cruciate ligament reconstruction (ACLR), maximal isometric torque (IT) and peak torque (PT) generated by the muscles affecting the operated knee joint in the sagittal and transverse planes are not restored. We also present the application of IT and PT measurements of the mu...

A morphological and molecular study of proposed early forms of the traditional serrated adenoma.

The traditional serrated adenoma (TSA) is the least common subtype of serrated colorectal polyp. Large protuberant lesions are easily recognized, however, the origins of TSAs are not known and early forms have not been described. Some large TSAs present with a flat "shoulder" component surrounding the central protuberant component. We hypothesized that small polyps with the same histology as these...

Toward a transdiagnostic tool to evaluate depressive symptoms across mental disorders: Validation of the Calgary depression rating scale in patients with major depressive disorder.

The severity of depressive symptoms across two discrete mental disorders should be evaluated with the same psychometrically validated tools. In patients with schizophrenia the Calgary Depression Rating Scale (CDSS) is recommended for evaluating depressive symptoms. The aim of this study was to validate the CDSS in patients with major depressive disorder. The CDSS exhibit satisfactory psychometric ...

Triptolide inhibits the inflammatory activities of neutrophils to ameliorate chronic arthritis.

Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by cellular infiltration into the joints and cartilage destruction. Neutrophils play a crucial role in the pathogenesis of RA. Triptolide (TP) is a bioactive compound derived from Tripterygium wilfordii Hook F, which has been used in folk medicine as a treatment for a variety of inflammatory disorders, including RA, for many c...

Impact of knee varus and valgus deformity on alignment in lower extremities after total knee arthroplasty (TKA).

To investigate the impact of knee varus and valgus in varying degrees on the alignment in lower extremities of patients who received the total knee arthroplasty (TKA).

Atomic-Scale Measurement of Flexoelectric Polarization at SrTiO_{3} Dislocations.

Owing to the broken translational symmetry at dislocations, a strain gradient naturally exists around the dislocation cores and can significantly influence the electrical and mechanical properties. We use aberration corrected scanning transmission electron microscopy to directly measure the flexoelectric polarization (∼28  μC cm^{-2}) at dislocation cores in SrTiO_{3}. The polarization ch...

Gap difference in navigated TKA: a measure of the imbalanced flexion-extension gap.

The success of Total Knee Arthroplasty (TKA) hinges on balanced flexion-extension gaps. This paper aims to evaluate the correlation between imbalanced gaps and clinical outcomes, and hence help quantify the imbalanced gap in navigation-assisted total knee arthroplasty.

The Role of SPECT/CT of Foot and Ankle in the Evaluation of Heel Pain.

Heel pain is a common symptom in foot and ankle disorders. Typical heel pain can be assessed according to the patient's history and the location of pain. In some atypical inconclusive cases, bone SPECT/CT is the upcoming imaging modality for the detection of causes of heel pain. We present the case of 57-year-old man with atypical heel pain, plantar and Achilles spurs. SPECT/CT images demonstrated...

Influence of the moving fluoroscope on gait patterns.

Video-fluoroscopic analysis can provide important insights for the evaluation of outcome and functionality after total knee arthroplasty, allowing the in vivo assessment of tibiofemoral kinematics without soft tissue artefacts. To enable measurement of the knee throughout activities of daily living such as gait, robotic systems like the moving fluoroscope have been developed that follow the knee m...

Impaired discriminative fear conditioning during later training trials differentiates generalized anxiety disorder, but not panic disorder, from healthy control participants.

Fear conditioning is implicated as a central psychopathological mechanism of anxiety disorders. People with anxiety disorders typically demonstrate reduced affective discrimination between conditioned danger and safety cues. Here, affective discrimination refers to the ability to selectively display fear to dangerous but not safe situations. Though both generalized anxiety disorder (GAD) and panic...

WHO/ILO work-related burden of disease and injury: Protocol for systematic reviews of exposure to long working hours and of the effect of exposure to long working hours on stroke.

The World Health Organization (WHO) and the International Labour Organization (ILO) are developing a joint methodology for estimating the national and global work-related burden of disease and injury (WHO/ILO joint methodology), with contributions from a large network of experts. In this paper, we present the protocol for two systematic reviews of parameters for estimating the number of deaths and...

Limbic encephalitis associated with systemic sclerosis.

We report the case of a patient affected by systemic sclerosis (SSc) who developed autoimmune limbic encephalitis, which improved under immunosuppressant agents and high-dose intravenous immunoglobulins. In our patient the autoimmune encephalitis occurred during apparently quiescent SSc, though concomitantly with novel arthritis. Moreover, our patient showed auto-antibodies directed against SSA an...

Scaption kinematics of reverse shoulder arthroplasty do not change after the sixth postoperative month.

Changes over time in shoulder kinematics and function after reverse shoulder arthroplasty have not been reported. The purpose of this study was to compare shoulder kinematics and function at 6 months and 1 year after reverse shoulder arthroplasty.

Social Anxiety in individuals with clinical high-risk state for psychosis.

In recent years an increased comorbidity of schizophrenic disorders with anxiety disorders has been reported. Thus, among patients with a disorder from the schizophrenia spectrum, a general anxiety disorder was found in 38.3 % of patients, with 14.9 % of these with social phobia (SP). Especially social anxiety (SA) is of particular importance because it is often associated with depression and ...

Bony landmarks with tibial cutting surface are useful to avoid rotational mismatch in total knee arthroplasty.

The purpose of this study was to define various anteroposterior axes of the tibial component as references and to evaluate their accuracy and variability using virtual surgery. It was hypothesized that (1) Akagi's Line could result in high accuracy and low variability in varus osteoarthritic knees; (2) anteroposterior axes defined by using the tibial bony cutting surface as a landmark might be goo...

Pain and disability after first-time spinal fusion for lumbar degenerative disorders: a systematic review and meta-analysis.

Lumbar spinal fusion (LSF) is frequently and increasingly used in lumbar degenerative disorders despite conflicting results and recommendations. A thorough understanding of patient outcomes after LSF is required to inform decisions regarding surgery and to improve post-surgery management. The current study aims to evaluate the course of pain and disability in patients with degenerative disorders o...

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