keyword
https://read.qxmd.com/read/38535410/flywheel-romanian-deadlift-intra-and-inter-day-kinetic-and-kinematic-reliability-of-four-inertial-loads-using-cluster-sets
#21
JOURNAL ARTICLE
Shane Ryan, Rodrigo Ramirez-Campillo, Declan Browne, Jeremy Moody, Paul J Byrne
The primary aim of this study was to investigate the intra- and inter-day reliability of flywheel cluster set training in concentric power (CON), eccentric power (ECC), and ECC overload during the Romanian deadlift exercise (RDL). A secondary aim was to assess the acute effect of internal and external attentional focus instructions on mean power when performing the flywheel RDL. Fourteen collegiate male field sport athletes (age, 23.3 ± 3.7 years; mass, 80.8 ± 9.9 kg; height, 1.79 ± 0.06 m) were randomized into internal ( n = 7) or external ( n = 7) attentional focus groups and attended four testing sessions, with a between-session separation of 7 days...
December 19, 2023: Journal of Functional Morphology and Kinesiology
https://read.qxmd.com/read/38535321/palmitate-compromises-c6-astrocytic-cell-viability-and-mitochondrial-function
#22
JOURNAL ARTICLE
Luisa O Schmitt, Antonella Blanco, Sheila V Lima, Gianni Mancini, Natalia F Mendes, Alexandra Latini, Joana M Gaspar
Consumption of high-fat diets (HFD) is associated with brain alterations, including changes in feeding behavior, cognitive decline, and dementia. Astrocytes play a role in HFD-induced neuroinflammation and brain dysfunction; however, this process is not entirely understood. We hypothesized that exposure to saturated fatty acids can compromise astrocyte viability and mitochondrial function. The C6 (astrocytes) cell line was treated with palmitate or stearate (200 µM and 400 µM) for 6 h. Cell viability, morphology, inflammatory markers, and oxidative stress were evaluated...
March 12, 2024: Metabolites
https://read.qxmd.com/read/38535249/analysis-of-bone-mineral-density-and-bone-quality-of-cortical-bone-in-the-human-hyoid-body-and-histological-observation-of-the-entheses
#23
JOURNAL ARTICLE
Masaaki Kasahara, Tomoko Someya, Kei Kitamura, Genji Watanabe, Satoru Matsunaga, Shinichi Abe, Masayuki Hattori
The hyoid is the only bone in the human body that is completely independent, not forming a joint with any other bone; its position is maintained by the suprahyoid and infrahyoid muscles, as well as several ligaments. The purpose of this study was to ascertain the effect of the functional pressure arising from these muscles and ligaments on the hyoid body structure from its bone mineral density, bone quality, and histological observations. The area between the mesial-most part of each lesser horn and the center of the hyoid body was divided equally into four measurement regions...
February 22, 2024: Journal of Functional Biomaterials
https://read.qxmd.com/read/38535245/influence-of-hybrid-surface-modification-on-biocompatibility-and-physicochemical-properties-of-ti-6al-4v-eli-titanium
#24
JOURNAL ARTICLE
Anna Woźniak, Weronika Smok, Janusz Szewczenko, Marcin Staszuk, Grzegorz Chladek
Titanium-based materials are the most widely used materials in biomedical applications. However, according to literature findings, the degradation products of titanium have been associated with potential allergic reactions, inflammation, and bone resorption. The corrosion process of Ti-6Al-4V in the human body environment may be exacerbated by factors such as reduced pH levels and elevated concentrations of chloride compounds. Coatings made of biopolymers are gaining attention as they offer numerous advantages for enhancing implant functionality, including improved biocompatibility, bioactivity, wettability, drug release, and antibacterial activity...
February 20, 2024: Journal of Functional Biomaterials
https://read.qxmd.com/read/38535212/description-and-pathogenicity-of-colletotrichum-kapreanum-sp-nov-a-cherelle-wilt-pathogen-belonging-to-the-gigasporum-species-complex
#25
JOURNAL ARTICLE
Yoshiki Takata, Celynne Ocampo-Padilla, Mike Andre C Malonzo, Dan Charlie Joy Camara Pangilinan, Shunsuke Nozawa, Kyoko Watanabe
Similar to cacao pod rot, cherelle wilt decreases production from cacao fields. Among all known fungal pathogens of the cacao, Colletotrichum spp. are common infectious agents that affect the cherelles and pods of cacao; thus, cacao diseases are often classified by stage. Therefore, knowing whether these pathogens are common in both fruit stages is necessary for implementing disease control measures. Symptoms of cherelle wilt were found in cacao plants in Pangasinan, Philippines, in 2022. The fungal strain obtained from the lesion was found to be pathogenic towards cherelles, but not towards pods...
March 8, 2024: Journal of Fungi (Basel, Switzerland)
https://read.qxmd.com/read/38535061/thoracic-biometry-in-patients-with-congenital-diaphragmatic-hernia-a-magnetic-resonance-imaging-study
#26
JOURNAL ARTICLE
Erick George Neștianu, Septimiu Popescu, Dragoș Ovidiu Alexandru, Laura Giurcăneanu, Radu Vlădăreanu
This is a retrospective study investigating biometric measurements using magnetic resonance imaging (MRI) examinations in congenital diaphragmatic hernia (CDH). CDH is one of the more common causes of pulmonary hypoplasia, with grave consequences for the fetus. Inclusion criteria were patients diagnosed with CDH as the only observed anomaly, who underwent MRI examination after the second-trimester morphology ultrasound. The patients came from three university hospitals in Bucharest, Romania. In total, 19 patients were included in the study after applying exclusion criteria...
March 18, 2024: Diagnostics
https://read.qxmd.com/read/38534999/a-comparison-of-68-ga-psma-pet-ct-based-split-renal-function-with-99m-tc-mag3-renography-in-patients-with-metastatic-castration-resistant-prostate-carcinoma-treated-with-177-lu-psma
#27
JOURNAL ARTICLE
Lerato Gabela, Thokozani Mkhize, Bawinile Hadebe, Lerwine Harry, Thembelihle Nxasana, Nontobeko Ndlovu, Venesen Pillay, Sphelele Masikane, Maryam Patel, Nozipho Elizabeth Nyakale, Mariza Vorster
BACKGROUND: Physiological PSMA expression in the cells of the proximal renal tubules and consecutive radiopharmaceutical binding and retention could potentially lead to radioligand-therapy-induced nephrotoxicity. Thus, patients with metastatic castration-resistant prostate cancer undergo 99m Tc-Mercaptoacetyltriglycine (MAG3) renal scintigraphy to assess kidney function and to exclude renal obstruction as part of their workup for PSMA-targeted radioligand therapy (RLT). 99m Tc-MAG-3 renal scintigraphy often requires an additional visit to the nuclear medicine department and patients spend 30-90 min in the department, which is inconvenient and takes up camera time...
March 8, 2024: Diagnostics
https://read.qxmd.com/read/38534876/stereo-camera-setup-for-360%C3%A2-digital-image-correlation-to-reveal-smart-structures-of-hakea-fruits
#28
JOURNAL ARTICLE
Matthias Fischer, Max D Mylo, Leon S Lorenz, Lars Böckenholt, Heike Beismann
About forty years after its first application, digital image correlation (DIC) has become an established method for measuring surface displacements and deformations of objects under stress. To date, DIC has been used in a variety of in vitro and in vivo studies to biomechanically characterise biological samples in order to reveal biomimetic principles. However, when surfaces of samples strongly deform or twist, they cannot be thoroughly traced. To overcome this challenge, different DIC setups have been developed to provide additional sensor perspectives and, thus, capture larger parts of an object's surface...
March 21, 2024: Biomimetics
https://read.qxmd.com/read/38534851/knee-measurement-system-with-osteoarthritis-levels-using-artificial-cartilage-and-skeletons
#29
JOURNAL ARTICLE
Minchae Kang, Suyeon Seo, Hyewon Lee, Min-Woo Han
Knee osteoarthritis (OA), also known as degenerative arthritis, is a disease characterized by irreversible changes in the cartilage and bones comprising the joints, resulting in pain, impaired function, and deformity. Furthermore, independent of natural aging, the rate of change in joint cartilage has increased in recent years, which is mainly attributed to environmental factors. The rising incidence of knee-related disorders emphasizes the importance of analyzing the morphology and kinematics of knee structure...
March 8, 2024: Biomimetics
https://read.qxmd.com/read/38534744/an-examination-of-the-effects-of-propolis-and-quercetin-in-a-rat-model-of-streptozotocin-induced-diabetic-peripheral-neuropathy
#30
JOURNAL ARTICLE
Sibel Türedi, Hakim Çelik, Şeyda Nur Dağlı, Seyhan Taşkın, Uğur Şeker, Mustafa Deniz
The purpose of this study was to reveal the combined effects of propolis (P) and quercetin (Q) against diabetic peripheral neuropathy developing with streptozotocin-induced diabetes in rats. Sixty-four adult male rats were divided into eight equal groups: control, P (100 mg/kg/day), Q (100 mg/kg/day), P + Q (100 mg/day for both), diabetes mellitus (DM) (single-dose 60 mg/kg streptozotocin), DM + P, DM + Q, and DM + P + Q. The rats were sacrificed, and blood and sciatic nerve tissues were collected. Blood glucose and malondialdehyde (MDA) levels increased, while IL-6 and total antioxidant status decreased in the DM group ( p = 0...
March 2, 2024: Current Issues in Molecular Biology
https://read.qxmd.com/read/38534743/effects-of-letrozole-treatment-and-vitamin-c-supplementation-on-morphology-endoplasmic-reticulum-stress-programmed-cell-death-and-oxidative-stress-in-the-small-intestine-of-adult-male-rats
#31
JOURNAL ARTICLE
Anna Pilutin, Sylwia Rzeszotek, Aleksandra Wilk, Klaudia Klimaszewska, Julia Łukasiewicz, Rufaro Lynnette Mafuta, Thanushan Nagendran, Rupia Ndambara, Barbara Wiszniewska
Estrogens are hormones that play an important role in the digestive tract, including in men. Letrozole is an inhibitor of cytochrome P450 aromatase, an enzyme converting androgens to estrogens. The use of letrozole may cause oxidative stress and endoplasmic reticulum stress in the cells. Factors modulating cellular stress may include vitamin C. The purpose of this study was to examine whether letrozole and/or vitamin C supplementation can affect the morphology of the small intestine, the parameters of endoplasmic reticulum stress, programmed cell death markers, and oxidative damage...
March 1, 2024: Current Issues in Molecular Biology
https://read.qxmd.com/read/38534550/active-claw-shaped-dry-electrodes-for-eeg-measurement-in-hair-areas
#32
JOURNAL ARTICLE
Zaihao Wang, Yuhao Ding, Wei Yuan, Hongyu Chen, Wei Chen, Chen Chen
EEG, which can provide brain alteration information via recording the electrical activity of neurons in the cerebral cortex, has been widely used in neurophysiology. However, conventional wet electrodes in EEG monitoring typically suffer from inherent limitations, including the requirement of skin pretreatment, the risk of superficial skin infections, and signal performance deterioration that may occur over time due to the air drying of the conductive gel. Although the emergence of dry electrodes has overcome these shortcomings, their electrode-skin contact impedance is significantly high and unstable, especially in hair-covered areas...
March 13, 2024: Bioengineering
https://read.qxmd.com/read/38534519/molecular-dynamics-and-in-vitro-studies-elucidating-the-tunable-features-of-reconfigurable-nanodiscs-for-guiding-the-optimal-design-of-curcumin-formulation
#33
JOURNAL ARTICLE
Yongxiao Li, Wanting Xu, Xinpei Wang, Ruizhi Lai, Xiaohui Qiu, Zekai Zeng, Zhe Wang, Junqing Wang
In this study, we advance our exploration of Apolipoprotein A-I (apoA-I) peptide analogs (APAs) for their application in nanodisc (ND) assembly, focusing on the dynamic conformational characteristics and the potential for drug delivery. We explore APA-ND interactions with an emphasis on curcumin encapsulation, utilizing molecular dynamic simulations and in vitro assessments to evaluate the efficacy of various APA-ND formulations as drug carriers. The methodological approach involved the generation of three unique apoA-I α-11/3 helical mimics, resulting in fifteen distinct APAs...
February 29, 2024: Bioengineering
https://read.qxmd.com/read/38534517/multiscale-mechanical-characterization-of-polyether-2-ketone-pekk-for-biomedical-application
#34
JOURNAL ARTICLE
Gianpaolo Serino, Fabio Distefano, Elisabetta M Zanetti, Giulia Pascoletti, Gabriella Epasto
Polyether-ether-2-ketone (PEKK) is a high-performance thermoplastic polymer used in various fields, from aerospace to medical applications, due to its exceptional mechanical and thermal properties. Nonetheless, the mechanical behavior of 3D-printed PEKK still deserves to be more thoroughly investigated, especially in view of its production by 3D printing, where mechanical properties measured at different scales are likely to be correlated to one another and to all play a major role in determining biomechanical properties, which include mechanical strength on one side and osteointegration ability on the other side...
February 29, 2024: Bioengineering
https://read.qxmd.com/read/38534511/emerging-trends-in-magnetic-resonance-fingerprinting-for-quantitative-biomedical-imaging-applications-a-review
#35
REVIEW
Anmol Monga, Dilbag Singh, Hector L de Moura, Xiaoxia Zhang, Marcelo V W Zibetti, Ravinder R Regatte
Magnetic resonance imaging (MRI) stands as a vital medical imaging technique, renowned for its ability to offer high-resolution images of the human body with remarkable soft-tissue contrast. This enables healthcare professionals to gain valuable insights into various aspects of the human body, including morphology, structural integrity, and physiological processes. Quantitative imaging provides compositional measurements of the human body, but, currently, either it takes a long scan time or is limited to low spatial resolutions...
February 28, 2024: Bioengineering
https://read.qxmd.com/read/38534446/first-european-erwinia-amylovora-lytic-bacteriophage-cocktails-effective-in-the-host-characterization-and-prospects-for-fire-blight-biocontrol
#36
JOURNAL ARTICLE
Elena G Biosca, Ricardo Delgado Santander, Félix Morán, Àngela Figàs-Segura, Rosa Vázquez, José Francisco Català-Senent, Belén Álvarez
Fire blight, caused by the plant-pathogenic bacterium Erwinia amylovora , is a highly contagious and difficult-to-control disease due to its efficient dissemination and survival and the scarcity of effective control methods. Copper and antibiotics are the most used treatments but pose environmental and human health risks. Bacteriophages (phages) constitute an ecological, safe, and sustainable fire blight control alternative. The goal of this study was to search for specific E. amylovora phages from plant material, soil, and water samples in Mediterranean environments...
March 8, 2024: Biology
https://read.qxmd.com/read/38534434/allometric-growth-pattern-and-hunger-tolerance-of-hemibarbus-maculatus-bleeker-larvae
#37
JOURNAL ARTICLE
Min Xie, Pengpeng Wang, Qi Deng, Si Liu, Zhou Zhang, Hao Wu, Jing Xiang, Jie Zhou, Xin Yang, Rui Song, Shaoming Li, Zhonggui Xie
To clarify the allometric growth pattern and hunger tolerance of Hemibarbus maculatus Bleeker larvae, the morphological lengths of their functional organs were measured continuously and their primary feeding rates under a state of starvation were studied. A control group and starvation group were set up for this study, and 10 larvae were sampled from each group every day in order to study their allometric growth pattern and starvation tolerance. The results indicated that the Hemibarbus maculatus larvae opened their mouths for feeding at 4 days after hatching, and that the yolk sac disappeared completely at 11 days after hatching...
March 3, 2024: Biology
https://read.qxmd.com/read/38534260/sensitivity-of-electrocardiogram-on-electrode-pair-locations-for-wearable-devices-computational-analysis-of-amplitude-and-waveform-distortion
#38
JOURNAL ARTICLE
Kiyoto Sanjo, Kazuki Hebiguchi, Cheng Tang, Essam A Rashed, Sachiko Kodera, Hiroyoshi Togo, Akimasa Hirata
An electrocardiogram (ECG) is used to observe the electrical activity of the heart via electrodes on the body surface. Recently, an ECG with fewer electrodes, such as a bipolar ECG in which two electrodes are attached to the chest, has been employed as wearable devices. However, the effect of different geometrical factors and electrode-pair locations on the amplitude and waveform of ECG signals remains unclear. In this study, we computationally evaluated the effects of body morphology, heart size and orientation, and electrode misalignment on ECG signals for 48 scenarios using 35 bipolar electrode pairs (1680 waveforms) with a dynamic time warping (DTW) algorithm...
March 21, 2024: Biosensors
https://read.qxmd.com/read/38534077/synovial-sarcoma-of-the-viscera-lung-and-jejunum-a-case-report
#39
JOURNAL ARTICLE
Jixin He, Jiwei Wang, Lina Yang, Kai Wang, Maijian Wang, Jianguo Li
We report the case of a woman nearing 70 years old who was admitted to the hospital with a complaint of "epigastric distension for 1 month". Her main signs and symptoms were progressive abdominal distension and occasional abdominal pain. Computed tomography suggested an abdominal mass. She had a surgical history of synovial sarcoma (SS) of the lungs. After admission, she was diagnosed with jejunal SS following a puncture biopsy and laparoscopic surgery. This disease usually occurs in the soft tissues of the limbs, and it is extremely rare for SS to originate in the jejunum...
March 2024: Journal of International Medical Research
https://read.qxmd.com/read/38533958/associations-of-alcohol-consumption-with-left-atrial-morphology-and-function-in-a-population-at-high-cardiovascular-risk
#40
JOURNAL ARTICLE
Aniqa B Alam, Estefania Toledo-Atucha, Dora Romaguera, Angel M Alonso-Gómez, Miguel A Martínez-Gonzalez, Lucas Tojal-Sierra, Marta Noris Mora, Caterina Mas-Llado, Linzi Li, Ines Gonzalez-Casanova, Jordi Salas-Salvadó, Montserrat Fitó, Alvaro Alonso
BACKGROUND: Excessive alcohol consumption has been associated with increased risk of atrial fibrillation, although the underlying mechanisms remain unclear. An enlarged left atrium and impaired left atrial function may lead to atrial fibrillation. The association of alcohol consumption with structural and functional left atrial measures, however, has received limited attention. METHODS AND RESULTS: We studied 503 participants from the PREDIMED-Plus (Prevención con Dieta Mediterránea) trial, a randomized trial testing intensive weight loss intervention with an energy-reduced Mediterranean diet and physical activity promotion in preventing cardiovascular disease in adults with metabolic syndrome...
March 27, 2024: Journal of the American Heart Association
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