Publications by authors named "Richard R"

This systematic review summarizes the available evidence on respiratory muscle endurance training involving voluntary isocapnic hyperpnoea among patients with chronic diseases. It includes both randomized and non-randomized controlled trials implementing this exercise training modality performed either alone or in combination with other interventions. It was conducted using the following databases: PubMed, Google Scholar, Physiotherapy Evidence Database (PEDro), Embase, CINAHL, CENTRAL, Cochrane and ReeDOC.

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Background: In osteoarthritis quadriceps strength is an important outcome to assess exercise capacity and recovery after arthroplasty. However, its measurement is limited due to lack of time and the need for trained personnel and equipment whose accuracy is verified.

Objectives: To find out the determinants of a reduced quadriceps strength and to establish a score to screen for it.

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  • Cachexia, a condition often linked to digestive cancers like oesophagogastric cancer, is believed to be influenced by mitochondrial activity in adipose tissue, particularly in response to chemotherapy.
  • The ChiFMeOE study aims to investigate how cachexia affects energy metabolism in fat cells and how these changes respond to chemotherapy in patients undergoing treatment for specific types of cancer.
  • This study will include 60 patients and focus on collecting tissue biopsies and assessing mitochondrial function, while ensuring ethical standards are maintained through proper consent and oversight.
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Sprint performance is commonly assessed via discrete sprint tests and analyzed through kinematic estimates modeled using a mono-exponential equation, including estimated maximal sprinting speed (MSS), relative acceleration (TAU), maximum acceleration (MAC), and relative propulsive maximal power (PMAX). The acceleration-velocity profile (AVP) provides a simple summary of short sprint performance using two parameters: MSS and MAC, which are useful for simplifying descriptions of sprint performance, comparison between athletes and groups of athletes, and estimating changes in performance over time or due to training intervention. However, discrete testing poses logistical challenges and defines an athlete's AVP exclusively from the performance achieved in an isolated testing environment.

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Background: About two-thirds of those with Alzheimer's disease (AD) are women, most of whom are post-menopausal. Menopause accelerates dementia risk by increasing the risk for metabolic, cardiovascular, and cerebrovascular diseases. Mid-life metabolic disease (obesity, diabetes/prediabetes) is a well-known risk factor for dementia.

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As older adults tend to reduce their intake of animal-source proteins, plant-source proteins may offer valuable resources for better protein intake. The aim of this study was to assess whether the pea proteins can be used to achieve blood amino acid levels that stimulate muscle protein synthesis. We measured variations in plasma amino acid concentrations in young and older adults given pea (NUTRALYS S85 Plus) or whey proteins either alone or in a standardized meal.

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Osteoarthritis and degenerative joint disease affect many species of nondomestic felid and negatively impact quality of life in managed care settings. Previously, pain management options were limited because of the frequency of comorbidities such as renal disease and common difficulty encountered in medication administration. Solensia (frunevetmab) is a felinized monoclonal antibody that binds to nerve growth factor in arthritic joints, thereby inhibiting pain response cascades, and produces marked improvement in clinical signs and quality of life in domestic cats diagnosed with osteoarthritis.

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People spend most of their time indoors and are exposed to numerous contaminants in the built environment. Water management plans implemented in buildings are designed to manage the risks of preventable diseases caused by drinking water contaminants such as opportunistic pathogens (e.g.

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Premise plumbing water quality degradation has led to negative health impacts from pathogen outbreaks (e.g., and non-tuberculous mycobacteria), as well as chronic effects from exposure to heavy metals or disinfection by-products (DBP).

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  • The DNA damage response is crucial for keeping our genes intact, and its disruption is often linked to cancer development, with PPM1D acting as a key negative regulator.
  • Researchers used CRISPR/Cas9 to find vulnerabilities in cancer cells with mutations in PPM1D, identifying superoxide dismutase-1 (SOD1) as a promising target.
  • The study showed that PPM1D-mutant cells have high levels of reactive oxygen species and struggle with oxidative stress, suggesting that targeting SOD1 could be a new treatment approach for these types of cancers.
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To show the superiority of eccentric versus concentric strengthening in terms of improving quadriceps strength in knee osteoarthritis (OA), a randomized controlled study was conducted to perform 12 sessions of either eccentric or concentric isokinetic muscle strengthening over 6 weeks. We recruited males and females, aged between 40 and 70 years, with predominantly unilateral femorotibial OA. Exclusion criteria were having a prosthesis, inflammatory arthritis or flare-up of OA, symptomatic patellofemoral OA, cardiovascular or pulmonary disease that could be a contraindication to the study treatment, and any pathology that could cause muscle weakness.

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Objective: Positive antineutrophil cytoplasmic antibodies (ANCAs) may occur in the setting of interstitial lung disease (ILD), with or without ANCA-associated vasculitis (AAV). We aim to compare the characteristics and clinical course of patients with ILD and positive ANCA (ANCA-ILD) to those with negative ANCA.

Methods: We performed a single-center retrospective cohort study from 2018 to 2021.

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Background: Cardiovascular comorbidities are increasingly being recognised in early stages of chronic obstructive pulmonary disease (COPD) yet complete cardiorespiratory functional assessments of individuals with mild COPD or presenting with COPD risk factors are lacking. This paper reports on the effectiveness of the cardiocirculatory-limb muscles oxygen delivery and utilisation axis in smokers exhibiting no, or mild to moderate degrees of airflow obstruction using standardised cardiopulmonary exercise testing (CPET).

Methods: Post-bronchodilator spirometry was used to classify participants as 'ever smokers without' (n=88), with 'mild' (n=63) or 'mild-moderate' COPD (n=56).

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The situation in Sudan have deteriorated since the ongoing war outbreak in April 2023. This article sheds light on the pharmacological status in Sudan in terms of shortage of supply, rising demands, and regulatory issues. The ongoing civil war has acutely impacted the dilapidated pharmaceutical status of Sudan, patients have suffered from the paucity of medical services forcing an out-of-control rise in underreported morbidity and mortality.

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There is a growing desire for inter-package modularity within the chemistry software community to reuse encapsulated code units across a variety of software packages. Most comprehensive efforts at achieving inter-package modularity will quickly run afoul of a very practical problem, being able to cohesively build the modules. Writing and maintaining build systems has long been an issue for many scientific software packages that rely on compiled languages such as C/C++.

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  • The study aimed to investigate factors linked to the loss of fixation in retrograde rami screws used to treat minimally displaced lateral compression type 1 (LC1) pelvic injuries.
  • Conducted at a Level 1 trauma center, the research analyzed data from 38 patients, focusing on outcomes such as screw displacement and the need for revision surgery.
  • Findings showed that 17.5% of screws experienced loss of fixation, with the use of unicortical rami screws being a significant predictor of this complication.
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Background: Purely isolated spinous processes fractures are rare and are usually treated conservatively, although a few authors have reported cases of nonunion that ultimately required surgical resection.

Case Presentation: We present a case of an isolated T6 spinous process pseudoarthrosis that was treated by surgical resection of the tip of the spinous process. A 34-year-old Caucasian male patient was complaining of mid-thoracic back pain without neurologic impairment more than 2 years after an isolated spinous process fracture.

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Background: The frequency of upper extremities vein thrombosis (UEVT) is rising with the increasing use of endovenous devices. These thromboses are particularly common among hospitalized patients. The epidemiology and risk factors for UEVT are poorly understood in a hospitalized population.

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Communities of color and diverse communities (eg, race, socioeconomic status, language, sexual orientation etc.) have not been recruited and enrolled equitably to participate in research studies in transfusion medicine. The exclusion of diverse communities in transfusion research can lead to health disparities lack of access to approved therapeutics and unequal allocation of interventions, resulting in missed opportunities to optimize health for individuals and communities.

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As ¾ of the global population either have excess or insufficient fat, it has become increasingly critical to understand the functions and dysfunctions of adipose tissue (AT). AT serves as a key organ in energy metabolism, and recently, attention has been focused on white AT, particularly its mitochondria, as the literature evidence links their functions to adiposity. This narrative review provides an overview of mitochondrial functionality in human white AT.

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Three-dimensional (3D) offers exciting opportunities in medicine, particularly in orthopaedics. The boundaries of 3D printing are continuously being re-established and have paved the way for further innovations, including 3D bioprinting, custom printing refined methods, 4D bioprinting, and 5D printing potential. The quality of these applications have been steadily improving, increasing their widespread use among clinicians.

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  • * The rise of exascale computing technology presents challenges that necessitate a strategic approach to optimize the use of future computational resources.
  • * Emphasizing software sustainability and interoperability is crucial for leveraging exascale capabilities and facilitating innovative solutions for upcoming scientific challenges.
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