Implantable brain-computer interfaces (iBCIs) hold great promise for individuals with severe paralysis and are advancing toward commercialization. The features required to achieve autonomous use of an iBCI may be under recognized in traditional academic measures of iBCI function and deserve further consideration to achieve successful clinical translation and patient adoption. Here, we present four key considerations to achieve autonomous use, reflecting the authors' perspectives based on discussions during various sessions and workshops across the 10th International BCI Society Meeting, Brussels, 2023: (1) immediate use, (2) easy to use, (3) continuous use, and (4) stable system use.
View Article and Find Full Text PDFUnderstanding how the body is represented in motor cortex is key to understanding how the brain controls movement. The precentral gyrus (PCG) has long been thought to contain largely distinct regions for the arm, leg and face (represented by the "motor homunculus"). However, mounting evidence has begun to reveal a more intermixed, interrelated and broadly tuned motor map.
View Article and Find Full Text PDFBackground: Brain-computer interfaces can enable communication for people with paralysis by transforming cortical activity associated with attempted speech into text on a computer screen. Communication with brain-computer interfaces has been restricted by extensive training requirements and limited accuracy.
Methods: A 45-year-old man with amyotrophic lateral sclerosis (ALS) with tetraparesis and severe dysarthria underwent surgical implantation of four microelectrode arrays into his left ventral precentral gyrus 5 years after the onset of the illness; these arrays recorded neural activity from 256 intracortical electrodes.
Background And Aims: The clinical presentation of celiac disease (CD) has changed over time with more patients presenting with non-classical symptoms, extra-intestinal manifestations (EIM) or no symptoms. We aimed to investigate the main symptoms/signs leading to the diagnosis of CD in adult patients. As secondary end-point, we evaluated the outcome of gastrointestinal (GI) symptoms following gluten-free diet (GFD).
View Article and Find Full Text PDFIntroduction: Approximately 20-30% of the patients with ulcerative colitis (UC) may present with isolated proctitis. Ulcerative proctitis (UP) is a challenging condition to manage due to its significant burden in terms of disabling symptoms.
Areas Covered: PubMed was searched up to March 2024 to identify relevant studies on UP.
Brain-computer interfaces can enable rapid, intuitive communication for people with paralysis by transforming the cortical activity associated with attempted speech into text on a computer screen. Despite recent advances, communication with brain-computer interfaces has been restricted by extensive training data requirements and inaccurate word output. A man in his 40's with ALS with tetraparesis and severe dysarthria (ALSFRS-R = 23) was enrolled into the BrainGate2 clinical trial.
View Article and Find Full Text PDFBrain-computer interfaces have so far focused largely on enabling the control of a single effector, for example a single computer cursor or robotic arm. Restoring multi-effector motion could unlock greater functionality for people with paralysis (e.g.
View Article and Find Full Text PDFAdvances in deep learning have given rise to neural network models of the relationship between movement and brain activity that appear to far outperform prior approaches. Brain-computer interfaces (BCIs) that enable people with paralysis to control external devices, such as robotic arms or computer cursors, might stand to benefit greatly from these advances. We tested recurrent neural networks (RNNs) on a challenging nonlinear BCI problem: decoding continuous bimanual movement of two computer cursors.
View Article and Find Full Text PDFJ Family Med Prim Care
November 2022
Introduction: In India, about 90% of the rural population relied upon biomass fuels like animal dung, crop residues and wood. Women generally being involved in cooking are at higher risk of developing respiratory diseases following use of unclean fuels. Objective: The objective of the study is to assess the association of respiratory morbidity with different fuels and the duration of exposure in the women residing in the rural area of Maharashtra.
View Article and Find Full Text PDFObjective: The aim of this study was to investigate the type, indication and duration of restricted antibiotics prescribed to inpatients who had undergone antimicrobial stewardship (AMS) review by the infectious diseases specialist and to assess the effectiveness of the AMS program in a rural hospital.
Design: This was an observational retrospective study.
Setting: The study was conducted at a rural referral hospital in NSW.
Objectives: There are four immunoglobulin (IgG) subtypes that have varying complement-activating ability: strong (IgG3 and IgG1) and weak (IgG2 and IgG4). The standard flow cytometric crossmatch (FCM) assay does not distinguish between the various subtypes of the IgG molecule. This study outlines the development and use of a novel cell-based IgG subtype-specific FCM assay that is able to detect the presence of and quantitate the IgG subtypes bound to donor cells.
View Article and Find Full Text PDFBackground: Breast cancer is one of the most common cancers in India as well as the world. In India, 48% of patients with breast cancer are below 50 years of age, indicating a huge age shift in the last 25 years. Breast cancer in an early age group increased the five-year survival rate and increased life expectancy has created a large group of breast cancer survivors who battle scars of disease as well as treatment.
View Article and Find Full Text PDFMicroscopic examination is the backbone of malaria diagnosis and treatment evaluation in Indonesia. This test has limited ability to detect malaria at low parasite density. Inversely, nested polymerase chain reaction (PCR) can detect parasites at a density below the microscopic examination's detection limit.
View Article and Find Full Text PDFOrgan transplantation is essential and crucial for saving and enhancing the lives of individuals suffering from end-stage organ failure. Major challenges in the medical field include the shortage of organ donors, high rates of organ rejection, and long wait times. To address the current limitations and shortcomings, cellular therapy approaches have been developed using mesenchymal stem/stromal cells (MSC).
View Article and Find Full Text PDFIntracortical brain-computer interfaces (iBCIs) provide people with paralysis a means to control devices with signals decoded from brain activity. Despite recent impressive advances, these devices still cannot approach able-bodied levels of control. To achieve naturalistic control and improved performance of neural prostheses, iBCIs will likely need to include proprioceptive feedback.
View Article and Find Full Text PDFJ Stem Cells Regen Med
December 2020
There is an emerging need for the rapid generation of functional beta cells that can be used in cell replacement therapy for the treatment of type 1 diabetes (T1D). Differentiation of stem cells into insulin-producing cells provides a promising strategy to restore pancreatic endocrine function. Stem cells can be isolated from various human tissues including adipose tissue (AT).
View Article and Find Full Text PDFSpecies belonging to the family are found in highly diverse environments and play an important role in fermented foods and probiotic products. Many of these species have been individually reported to harbour plasmids that encode important genes. In this study, we performed comparative genomic analysis of publicly available data for 512 plasmids from 282 strains represented by 51 species of this family and correlated the genomic features of plasmids with the ecological niches in which these species are found.
View Article and Find Full Text PDFBackground: Hypothermic oxygenated machine perfusion improves outcomes in Liver Transplantation, but application is limited as O is supplied by a stationary circuit. A novel technique of O "pre-charge" in a portable pump would broaden use and further mitigate ischemia damage from organ transport.
Methods: Porcine DCD livers were randomized to static cold storage (SCS, n = 8) or hypothermic machine perfusion (HMP).
Decades after the motor homunculus was first proposed, it is still unknown how different body parts are intermixed and interrelated in human motor cortical areas at single-neuron resolution. Using multi-unit recordings, we studied how face, head, arm, and leg movements are represented in the hand knob area of premotor cortex (precentral gyrus) in people with tetraplegia. Contrary to traditional expectations, we found strong representation of all movements and a partially "compositional" neural code that linked together all four limbs.
View Article and Find Full Text PDFSurvival despite prolonged non-adherence with immunosuppression is rare but has been reported in kidney, lung, and liver transplantation. Its occurrence in heart transplantation is quite rare. Our study was prompted by an index patient who survived despite prolonged medication non-adherence.
View Article and Find Full Text PDFStem cells can be isolated from various human tissues including bone marrow (BM) and adipose tissue (AT). Our study outlines a process to isolate adult stem cells from deceased donors. We have shown that cell counts obtained from deceased donor BM were within established living donor parameters.
View Article and Find Full Text PDFProduction of exopolysaccharides (EPS) is one of the unique features of genus. EPS not only have many physiological roles such as in stress tolerance, quorum sensing and biofilm formation, but also have numerous applications in the food and pharmaceutical industries. In this study, we identified and compared EPS biosynthesis gene clusters in 106 sequenced genomes representing 27 species.
View Article and Find Full Text PDFTargeted delivery of drugs to specific diseased sites in the body is an area of research that has attracted many studies, particularly in drug deliveries that utilize microparticles. By achieving targeted delivery of a drug, one can increase the efficacy of the treatment, thus, reducing unwanted side effects. This study aims to synthesize microcapsules that are able to target and adsorb to specific proteins (i.
View Article and Find Full Text PDFAim: Relatively little is known about the prevalence of acute kidney injury developing outside a hospital setting (CA-AKI) or the impact of CA-AKI on short-term or long-term clinical outcomes. The objective of this study was to compare the prevalence, causes, severity and outcomes of patients with CA-AKI and hospital-acquired (HA)-AKI.
Methods: A retrospective cohort study of patients with AKI identified by ICD-9 code at a single VA (Veterans Affairs) hospital from September 1999 to May 2007 was performed.