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Frequency and prevention of symptomless deep-vein thrombosis in long-haul flights: a randomised trial.

BACKGROUND: The true frequency of deep-vein thrombosis (DVT) during long-haul air travel is unknown. We sought to determine the frequency of DVT in the lower limb during long-haul economy-class air travel and the efficacy of graduated elastic compression stockings in its prevention. METHODS: We recruited 89 male and 142 female passengers over 50 years of age with no history of thromboembolic problems. Passengers were randomly allocated to one of two groups: one group wore class-I below-knee graduated elastic compression stockings, the other group did not. All the passengers made journeys last

Methods to investigate the erythrocyte membrane biophysical properties relevant to blood circulation.

Erythrocytes (red blood cells) are critical for the transport of oxygen and carbon dioxide around the body, reaching all tissues ultimately … eir function, which have long been of physiological and biomedical interest. These include membrane elasticity and deformability (bending rigidity or elasticity) as well as membrane fluidity and tension, which depend on the lipid and protein composition of the membrane. This review details the methods available to measure these properties. Measurement of lip …

Biomechanical characteristics of upper airway muscles and their association with obstructive sleep apnea risk in industrial workers.

BACKGROUND: Obstructive Sleep Apnea Syndrome (OSAS) is characterized by repetitive upper airway obstruction during sleep. The viscoelastic properties of accessory respiratory muscles may play a compensatory role in maintaining airway patency. This study aimed to investigate the association between OSAS risk and muscle biomechanics in industrial workers. METHODS: This cross-sectional study included 236 male industrial workers aged 18–55, categorized into low, moderate, and high OSAS risk groups using the STOP-BANG questionnaire. The viscoelastic properties (tone, stiffness, elasticity) of the g…

Hook stiffness as a mechanical switch for torque regulation in the bacterial flagellar motor.

The bacterial flagellar motor drives cell motility by rotating the flagellar filament and converting ion flux into mechanical work. At low c … sing speed. Here, we identify that this asymmetry has a mechanical origin in the rotation-dependent elasticity of the hook rather than in the motor's torque-generating units. In CCW rotation, the hook remains bent and compliant, maintaining a separation of timescales between motor stepping and load response and thereby preserving the torque plateau in the ne …

Combined B-mode ultrasonography and shear-wave elastography protocol for lower-limb musculo-tendinous properties assessment: A pilot investigation of test-retest reliability in recreational athletes.

Evaluating the test-retest reliability of shear-wave elastography (SWE) is essential to interpret changes observed in clinical or sports science studies that employ pre/post intervention designs or longitudinal monitoring of musculoskeletal adaptations and pathologies. A simple, standardized protocol using only an ultrasound device to assess both the morphological and mechanical properties of the lower limbs has been described. The main purpose of this exploratory study was to assess reliability of SWE for measuring muscles and tendons' elasticity of knee extensors and plantar flexors. Reliabi…

Use of High-Intensity Focused Ultrasound in the Periorbital Rejuvenation: A Systematic Review.

BACKGROUND: Periorbital aging represents one of the earliest manifestations of facial aging, resulting from structural changes across cutane … ting HIFU applied to the periorbital region were included. Outcomes included wrinkle severity, skin elasticity, texture, lifting effects, patient satisfaction, and adverse events. Risk of bias was assessed. RESULTS: Ten studies involving 10 to 191 participants were included. Across included studies, HIFU demonstrated significant improvements in periorbital …

Porcine placenta peptides as a complementary functional food for skin rejuvenation: A 12-week randomized, double-blind, placebo-controlled trial.

Skin aging is characterized by the deterioration of collagen and elastin in the dermis, leading to wrinkles, dryness, and pigmentation irreg … or 12 weeks. Skin parameters, including wrinkle depth, hydration, transepidermal water loss (TEWL), elasticity, pigmentation, and gloss, were assessed at baseline and at 4, 8, and 12 weeks. Compared to the placebo group, the PPP group showed significant reductions in wrinkle depth, melanin index, erythema index, and TEWL, alongside notable improvements in sk …

Cocoa shell extract supplementation in hypertensive rats induces outward hypertrophic remodelling in mesenteric resistance arteries, reducing fibrosis.

Hypertension is the leading risk factor for cardiovascular diseases and is difficult to control, putting the focus on foods and nutraceutica … on smooth muscle cells. In addition, in MUN males CSE reduced MRA adventitial collagen and improved elasticity. In conclusion, CSE supplementation induces MRA outward hypertrophic remodelling, possibly related to improved flood flow. In MUN hypertensive rats, the increased diameter and elasticity, associated with modification to the ratio of cells to extrace …

Использование эластографии шейных волн для оценки окулярного участия в системном склерозе

Справочная информация: Ряд исследований, проведенных с целью получения изображений, подтвердили окулярное участие в системном склерозе (SSc). Однако эталограмма пока не используется для этой цели в литературе. Таким образом, данное исследование было направлено на оценку окулярного участия в SSc с использованием эластографии волн шеи (SWE). Методы: Это исследование включало в себя 29 SSc пациенты и 30 :: контроль за состоянием здоровья в зависимости от возраста и пола. Все участники прошли независимую офтальмологическую оценку two Офтальмологи. Впоследствии SWE использовалась для оценки сетчатк

Совпадение в аннотации оригинала
Background: Several imaging studies have confirmed ocular involvement in systemic sclerosis (SSc). However, elastography has not yet been us … D), optic nerve (ON), and retrobulbar adipose tissue (RBFT) of the right eye. The median shear wave elasticity (kPa) and velocity (m/s) values were automatically calculated using the ultrasound device’s integrated software. Results: The elasticity and velocity values of RBFT in SSc patients were significantly higher than those in the control group. However, …

Ultrasound Elastography as a Diagnostic Tool for Peyronie's Disease: A State-of-the-Art Review.

Elastography is a noninvasive method that utilizes ultrasound imaging to assess the elasticity and stiffness of soft tissue. Peyronie's disease (PD) is a chronic inflammatory condition that affects the male penis, causing the formation of fibrous plaques. This alters the penis's elasticity and can lead to changes in its shape. Ultrasound elastography (UE) is an important advancement in the diagnosis of PD. It not only identifies plaques, but it also measures their rigidity, providing crucial information to monitor changes during and after treatment. We conducted a narrative review of the scien…

Longitudinal changes in the carotid arteries of head and neck cancer patients following radiation therapy: Results from a prospective serial imaging biomarker characterization study.

INTRODUCTION: We prospectively evaluated morphologic and functional changes in the carotid arteries of patients treated with unilateral neck radiation therapy (RT) for head and neck cancer. METHODS: Bilateral carotid artery duplex studies were performed at 0, 3, 6, 12, 18 months and 2, 3, 4, and 5 years following RT. Intima media thickness (IMT); global and regional circumferential, as well as radial strain, arterial elasticity, stiffness, and distensibility were calculated. RESULTS: Thirty-eight patients were included. A significant difference in the IMT from baseline between irradiated and…

Effects of oral intake fruit or fruit extract on skin aging in healthy adults: a systematic review and Meta-analysis of randomized controlled trials.

BACKGROUND: In recent years, oral various fruits or supplements of fruits natural extracts have been reported to have significant anti-aging … WL. No significant statistical difference was observed in minimal erythema dose (MED), overall skin elasticity (R2), or wrinkle depth, and no evidence of significant improvement in skin condition was observed. CONCLUSION: Meta-analysis results suggest that consume administration of fruits or fruit extracts significantly enhances skin hydration and reduces t …

Properties of Particle Boards Containing Polymer Waste.

Nowadays, a significant increase in interest in renewable energy sources can be observed. Wind farms have been one of the solutions represen … ial with a polymer was 20% or 40%. Mechanical properties such as bending strength (MOR), modulus of elasticity (MOE), and internal bond strength (IB) were investigated. The 2S65 variant achieved the highest static bending strength and a modulus of elasticity of 2625 N/mm2. The second best result was noted for the 4S65 variant, which was significantly differe …

Evaluation of the anterior shoulder instability using ultrasound shear wave elastography.

OBJECTIVES: This study aims to evaluate the soft tissue stiffness which has a prominent role in shoulder instability using ultrasound (US) s … ceps (LHB) tendons forming the shoulder girdle and anterior labrum (L) were evaluated with SWE. The elasticity and velocity of the tissues were quantitatively measured. The operated shoulders of 33 patients due to isolated traumatic anterior instability were named Group 1, while the healthy shoulders of these patients were named Group 2. Thirty volunteers wi …

Left atrial strain brings new insights for evaluating early diastolic dysfunction in patients with well-functioning bicuspid aortic valve.

BACKGROUND: Left atrial reservoir strain (LARS) is an early sensor of left ventricular (LV) diastolic dysfunction. Still, the clinical implications of LARS in patients with well-functioning bicuspid aortic valve (BAV) remain unknown. MATERIALS: The study recruited 103 patients with well-functioning BAV and 50 controls with tricuspid aortic valves. LARS, LV global longitudinal strain (LVGLS) and aortic elasticity indices (aortic strain, aortic distensibility and stiffness index) were acquired. This study aimed to analyze the changes of LARS and further explore the influential factors of LARS i…

Condition Monitoring of the Dampers in the Railway Vehicle Suspension Based on the Vibrations Response Analysis of the Bogie.

This paper investigates the possibility of developing a new method for fault detection of a damper in the primary suspension of the railway … iginal models of the vehicle-track system, rigid-flexible coupled type, which take into account the elasticity of the vehicle carbody and the elasticity of the wheel-rail contact: a reference model with 15 degrees of freedom, for simulating the bogie response to vertical vibrations for the normal operating of the primary suspension dampers, and an extended m …

Evaluation of the Clinical Effectiveness of Shear Wave Elastography in Pediatric Cases With Acute Appendicitis.

To determine sensitivity and specificity of shear wave elastography in pediatric patients diagnosed with acute inflammation of the appendix. Forty-eight patients who were referred for abdominal pain, with 18 volunteers recruited for the evaluation. Alvarado scores were calculated on the patients. The elasticity and stiffness of the inflamed appendix tissues of patients and controls were measured using shear wave elastography. The anterior, posterior, and medial parts of the appendix tissue were measured, calculating the highest elasticity values in kPa. In the end, 32 patients with Alvarado sc…

D-chiro-inositol as a treatment in plaque psoriasis: A randomized placebo-controlled clinical trial.

Cyclitols are widely available natural sugars which do not exert toxic effects. Their anti-inflammatory and antioxidant properties may be us … g the PSI, VAS scale, and the objective measurement of hydration, transepidermal water loss (TEWL), elasticity, and thickness (DermaLab Combo) at 0, 3, and 6 weeks. PSI and VAS were improved in all groups without significant statistical differences. 1% DCI sample presented the highest statistically significant increase in the hydration of 50%, but it was sti …

The number of lateral hypothalamus orexin/hypocretin neurons contributes to individual differences in cocaine demand.

Lateral hypothalamus (LH) orexin neuron signaling has been implicated in the motivation to seek and take drugs of abuse. The number of LH or … ed cocaine demand. We found that animals with greater baseline motivation for cocaine (lower demand elasticity) had more LH orexin neurons. Following a 2-week abstinence from cocaine, the number of LH orexin neurons predicted economic demand for cocaine prior to abstinence, indicating that orexin expression is a persistent marker for demand. Reducing LH orex …

A comparative evaluation of cataract classifications based on shear-wave elastography and B-mode ultrasound findings.

In this study, a comparison is made of the findings of B-mode ultrasound and ultrasound elastography with the Lens Opacities Classification (LOCS) grade in patients with senile cataracts. A total of 74 patients with cataracts and 32 age-matched healthy volunteers as the control group were evaluated in the departments of ophthalmology and radiology between 2016 and 2017. In the patient group, cataracts were graded according to LOCS, and B-mode sonographic appearance and elasticity measurements were recorded, after which the cataract grade and sonoelastography/B-mode ultrasound findings were com…