J Wound Ostomy Continence Nurs
November 2023
Annu Int Conf IEEE Eng Med Biol Soc
November 2021
Parkinson's disease is a disorder that affects the neurons in the human brain. The various symptoms include slowness of motor functions (bradykinesia), motor instability, speech impairment and in some cases, psychiatric effects such as hallucinations. Most of these, however, are also common side effects of natural aging.
View Article and Find Full Text PDFA multifunctional surface, subsurface and systemic therapeutic (MS3T) formulation comprised of two bactericides, both didecyldimethylammonium chloride (DDAC) and a zinc (Zn)-chelate, was developed as an alternative to copper pesticides for crop protection. Agricultural grade chemicals were used to prepare MS3T formulations. Minimal inhibitory concentration (MIC) was determined to be tested in vitro against subsp.
View Article and Find Full Text PDFWhile upper limb reaches are often made in a feed-forward manner, visual feedback during the movement can be used to guide the reaching hand towards a target. In Parkinson's disease (PD), there is evidence that the utilisation of this visual feedback is increased. However, it is unclear if this is due solely to the characteristic slowness of movements in PD providing more opportunity for incorporating visual feedback to modify reach trajectories, or whether it is due to cognitive decline impacting (feed-forward) movement planning ability.
View Article and Find Full Text PDFAnimal models of human disease provide an system that can reveal molecular mechanisms by which mutations cause pathology, and, moreover, have the potential to provide a valuable tool for drug development. Here, we have developed a zebrafish model of Parkinson's disease (PD) together with a novel method to screen for movement disorders in adult fish, pioneering a more efficient drug-testing route. Mutation of the gene (which encodes DJ-1) is known to cause monogenic autosomal recessive PD in humans, and, using CRISPR/Cas9 gene editing, we generated a Dj-1 loss-of-function zebrafish with molecular hallmarks of PD.
View Article and Find Full Text PDFDespite having notable advantages over established machine learning methods for time series analysis, reservoir computing methods, such as echo state networks (ESNs), have yet to be widely used for practical data mining applications. In this paper, we address this deficit with a case study that demonstrates how ESNs can be trained to predict disease labels when stimulated with movement data. Since there has been relatively little prior research into using ESNs for classification, we also consider a number of different approaches for realising input-output mappings.
View Article and Find Full Text PDFParkinson's disease (PD) is a neurodegenerative movement disorder. Although there is no cure, symptomatic treatments are available and can significantly improve quality of life. The motor, or movement, features of PD are caused by reduced production of the neurotransmitter dopamine.
View Article and Find Full Text PDFLevodopa is a drug that is commonly used to treat movement disorders associated with Parkinson's disease. Its dosage requires careful monitoring, since the required amount changes over time, and excess dosage can lead to muscle spasms known as levodopa-induced dyskinesia. In this work, we investigate the potential for using epiNet, a novel artificial gene regulatory network, as a classifier for monitoring accelerometry time series data collected from patients undergoing levodopa therapy.
View Article and Find Full Text PDFThis paper presents a novel method for tracking and characterizing adherent cells in monolayer culture. A system of cell tracking employing computer vision techniques was applied to time-lapse videos of replicate normal human uro-epithelial cell cultures exposed to different concentrations of adenosine triphosphate (ATP) and a selective purinergic P2X antagonist (PPADS), acquired over a 24h period. Subsequent analysis following feature extraction demonstrated the ability of the technique to successfully separate the modulated classes of cell using evolutionary algorithms.
View Article and Find Full Text PDFThis study describes how the application of evolutionary algorithms (EAs) can be used to study motor function in humans with Parkinson's disease (PD) and in animal models of PD. Human data is obtained using commercially available sensors via a range of non-invasive procedures that follow conventional clinical practice. EAs can then be used to classify human data for a range of uses, including diagnosis and disease monitoring.
View Article and Find Full Text PDFBackground: Performance on figure copy tests has been shown to predict progressive cognitive decline in Parkinson's disease (PD). Historically, the interlocking pentagons from the Mini Mental State Exam (MMSE) have been the figure copy test most commonly used during cognitive screening evaluations. However, the wire cube from the Montreal Cognitive Assessment (MoCA) is increasingly being used.
View Article and Find Full Text PDFCancer poses a massive health burden with incidence rates expected to double globally over the next decade. In the United Kingdom screening programmes exists for cervical, breast, and colorectal cancer. The ability to screen individuals for solid malignant tumours using only a peripheral blood sample would revolutionise cancer services and permit early diagnosis and intervention.
View Article and Find Full Text PDFThis paper presents a novel evolutionary algorithm inspired by protein/substrate binding exploited in enzyme genetic programming (EGP) and artificial immune networks. The immune network-inspired evolutionary algorithm has been developed in direct response to an application in clinical neurology, the diagnosis of Parkinson's disease. The inspiration for, and implementation of the algorithm is described and its performance to the application area considered.
View Article and Find Full Text PDFBackground: For patients with microinvasive breast cancer, the value of intraoperative analysis of sentinel lymph nodes (SLNs) and complete axillary lymph node dissection (CALND) is not well known.
Methods: All patients staged T1mic from 2001 to 2005 were analyzed.
Results: Among all 81 patients, 4 (5%) had SLN metastases detected with hematoxylin and eosin staining and 2 (2%) had metastases identified by immunohistochemistry staining only.
Background: Ureteral stent placement to localize the ureters during operations is an invasive procedure. The aim of this study was to evaluate the feasibility of using the gamma probe to intraoperatively identify the ureters after intravenous injection of a radiopharmaceutical agent.
Study Design: Ten patients undergoing elective abdominal operations were prospectively enrolled in this study.
Acute suppurative thyroiditis (AST) is an uncommon condition of the thyroid gland. Organisms of the staphylococcal and streptococcal species are the most commonly reported causative agents. Rarely, AST has been associated with transient hyperthyroidism.
View Article and Find Full Text PDFMetastasis to the breast from extramammary tumors is rare. Breast metastases of renal cell carcinoma (RCC) origin have been described in sporadic case reports. We present a patient with a solitary breast mass representing the manifestation of clinically silent, metastatic RCC.
View Article and Find Full Text PDFWe report the case of a 54-year-old woman undergoing radioguided parathyroidectomy in whom four normal glands were identified on cervical exploration. The gamma probe was instrumental in guiding us to the adenoma in a fifth gland that was not visible and was localized to the parenchyma of the left lobe of the thyroid gland. Many surgeons do not advocate use of the gamma probe in minimally invasive parathyroidectomy and rely solely on focused exploration on the basis of a preoperative sestamibi scan and intraoperative rapid parathyroid hormone assays.
View Article and Find Full Text PDFMetastatic disease involving the spleen is uncommon, and isolated metastasis to the spleen is extremely rare. Most patients with splenic metastases have widely disseminated metastatic disease. A current literature review shows the incidence of isolated splenic metastasis ranges from 0 to 26% of all patients with splenic metastases.
View Article and Find Full Text PDFBackground: Hemangioblastic precursors have been identified that give rise to both endothelial cells and HPCs, suggesting that common growth factor requirements may exist.
Study Design And Methods: The effect of vascular endothelial growth factor (VEGF) in combination with thrombopoietin peptide agonist (TPOA), Flt-3 L (F), and SCF (S) on long-term culture-initiating cell (LTC-IC), CFU, differentiation, and transduction of cord blood (CB) CD34+ were evaluated up to 4 weeks in culture.
Results: At Week 4, in cultures containing T/F/S and VEGF, the LTC-IC increased 1000-fold (from 37 +/- 8 to 37,012 +/- 14,329) with a frequency of 3.
Objective: To determine the safety and results of laparoscopic resection of benign pheochromocytomas.
Patients And Methods: We retrospectively reviewed the medical charts of all patients who underwent laparoscopic adrenalectomy for benign pheochromocytomas at all 3 Mayo Clinic sites between January 1, 1992, and December 31, 2001. Demographics, comorbidities, clinical presentation, imaging studies, biochemical findings, operative intervention, and outcome were examined.