Antimicrobial and Antifouling Effects of Petal-Like Nanostructure by Evaporation-Induced Self-Assembly for Personal Protective Equipment.

Although the personal protective equipment (PPE) used by healthcare workers (HCWs) effectively blocks hazardous substances and pathogens, it does not fully rule out the possibility of infection, as pathogens surviving on the fabric surface pose a substantial risk of cross-infection through unintended means. Therefore, PPE materials that exhibit effective biocidal activity while minimizing contamination by viscous body fluids (e.g.

Influence of the Foaming Process on the Burning Behavior of the PET-PEN Copolymer.

The manufacturing process can modify the micromechanical structure, usefulness, and functionality of foams. Although one-step foaming is a simple process, controlling the morphology of the foams is difficult compared to the two-step processing method. In this study, we investigated the experimental differences in thermal and mechanical properties, particularly combustion behavior, between PET-PEN copolymers prepared by the two methods.

A study on skin mobility according to joint movement: Variations in mobility according to joint motion range and correlation and influence with hydrica composition.

Background: Skin structures arranged in an advantageous structure for skin stretching to facilitate movement of the human body, and have structural functions to help the movement of the joints by changing the position of the skin, such as the stretch that occurs incidentally. Proper movement of the skin is required to be efficient owing to the nature of the skin that covers the entire human body with a single connected tissue layer.

Aims: The purpose of this study was to quantify the skin mobility that occurs during joint motion and to identify the correlation and influence with hydrica composition.

Transparent, Robust, and Photochemical Antibacterial Surface Based on Hydrogen Bonding between a Si-Al and Cationic Dye.

Healthcare-associated infections can occur and spread through direct contact with contaminated fomites in a hospital, such as mobile phones, tablets, computer keyboards, doorknobs, and other surfaces. Herein, this study shows a transparent, robust, and visible light-activated antibacterial surface based on hydrogen bonds between a transparent silica-alumina (Si-Al) sol-gel and a visible light-activated photosensitizer, such as crystal violet (CV). The study of the bonding mechanisms revealed that hydrogen bonding predominantly occurs between the N of CV and Al-OH.

SEPHS1: Its evolution, function and roles in development and diseases.

Selenophosphate synthetase (SEPHS) was originally discovered in prokaryotes as an enzyme that catalyzes selenophosphate synthesis using inorganic selenium and ATP as substrates. However, in contrast to prokaryotes, two paralogs, SEPHS1 and SEPHS2, occur in many eukaryotes. Prokaryotic SEPHS, also known as SelD, contains either cysteine (Cys) or selenocysteine (Sec) in the catalytic domain.

Is Age-Predicted Maximal Heart Rate Applicable in Patients With Heart or Lung Disease?

Objective: To compare the predicted and actual maximal heart rate (HRmax) values in the cardiopulmonary exercise test (CPET).

Methods: We retrospectively investigated 1,060 patients who underwent a CPET between January 2016 and April 2020 at our institution's cardiopulmonary rehabilitation center. The following patients were included: those aged >20 years, those tested with a treadmill, and those who underwent symptom-limited maximum exercise testing- reaching ≥85% of the predicted HRmax (62% if taking beta-blockers) and highest respiratory exchange ratio ≥1.

Photobiocidal-triboelectric nanolayer coating of photosensitizer/silica-alumina for reusable and visible-light-driven antibacterial/antiviral air filters.

Outbreaks of airborne pathogens pose a major threat to public health. Here we present a single-step nanocoating process to endow commercial face mask filters with photobiocidal activity, triboelectric filtration capability, and washability. These functions were successfully achieved with a composite nanolayer of silica-alumina (Si-Al) sol-gel, crystal violet (CV) photosensitizer, and hydrophobic electronegative molecules of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (PFOTES).

Effect of early oral nutrition supplement using Encover in patients undergoing hepato-biliary-pancreatic surgery.

Backgrounds/aims: Early recovery after surgery has become a popular trend. The aim of this study was to evaluate effect of nutritional intervention using Encover, an oral nutritional supplement, in patients undergoing hepato-biliary-pancreatic surgery.

Methods: This single center, prospective case-control study was conducted in Gangnam Severance Hospital from September 2018 to April 2019.

Selenophosphate synthetase 1 deficiency exacerbates osteoarthritis by dysregulating redox homeostasis.

Aging and mechanical overload are prominent risk factors for osteoarthritis (OA), which lead to an imbalance in redox homeostasis. The resulting state of oxidative stress drives the pathological transition of chondrocytes during OA development. However, the specific molecular pathways involved in disrupting chondrocyte redox homeostasis remain unclear.

Angiosarcoma secondary to postirradiation and chronic lymphedema: Case reports.

Introduction: Angiosarcoma secondary to post-irradiation and lymphedema is rare, but it is aggressive with a poor prognosis. It is essential to understand these patients' clinical features and distinguish them from benign diseases or other malignant tumors.

Patient Concerns: Three patients who had radiotherapy for cancer treatment and chronic lymphedema admitted to the hospital with specific skin lesions at upper or lower extremities.

Historical Roles of Selenium and Selenoproteins in Health and Development: The Good, the Bad and the Ugly.

Selenium is a fascinating element that has a long history, most of which documents it as a deleterious element to health. In more recent years, selenium has been found to be an essential element in the diet of humans, all other mammals, and many other life forms. It has many health benefits that include, for example, roles in preventing heart disease and certain forms of cancer, slowing AIDS progression in HIV patients, supporting male reproduction, inhibiting viral expression, and boosting the immune system, and it also plays essential roles in mammalian development.

Role of early short-term cardiac rehabilitation in patients undergoing pacemaker implantation.

Exercise-based cardiac rehabilitation (CR) improves the clinical outcomes in patients with cardiovascular diseases. However, few data exist regarding the role of early short-term CR in patients undergoing pacemaker (PM) implantation. We assessed whether short-term CR following PM implantation was sufficient to improve both physical function and quality of life (QOL).

Identification of Signaling Pathways for Early Embryonic Lethality and Developmental Retardation in Mice.

Selenophosphate synthetase 1 (SEPHS1) plays an essential role in cell growth and survival. However, the underlying molecular mechanisms remain unclear. In the present study, the pathways regulated by SEPHS1 during gastrulation were determined by bioinformatical analyses and experimental verification using systemic knockout mice targeting .

Constitutive Oxidative Stress by SEPHS1 Deficiency Induces Endothelial Cell Dysfunction.

The primary function of selenophosphate synthetase (SEPHS) is to catalyze the synthesis of selenophosphate that serves as a selenium donor during selenocysteine synthesis. In eukaryotes, there are two isoforms of SEPHS (SEPHS1 and SEPHS2). Between these two isoforms, only SEPHS2 is known to contain selenophosphate synthesis activity.

Gold Standard? Method of Citric Acid Solution Swallowing Test as a Screening Test for Patients with Tracheostomy.

This study aimed to apply various ranges of citric acid levels in the mouth and T-cannula to compare the validity with instrumental aspiration measures in patients with tracheostomy. Sixty-one patients underwent the citric acid cough reflex test (CRT) and videofluoroscopic swallowing study (VFSS). Citric acid was delivered via facemask and T-cannula at concentrations of 0.

Identification of acquired tracheoesophageal fistula after tracheostomy decannulation by videofluoroscopic swallowing study: A case report.

Rationale: Videofluoroscopic swallowing study (VFSS) is a noninvasive radiographic procedure that examines the oral, pharyngeal, and cervical esophageal stages of swallowing. Tracheoesophageal fistula (TEF) is difficult to diagnose depending on its size and location. However, how VFSS can be of benefit in the diagnosis of TEF has not been reported yet.

A novel assessment of abdominal pseudohernia after thoracolumbar vertebral compression fractures using surface electromyography and ultrasonography: A case report.

Rationale: An abdominal pseudohernia is a protrusion of the abdominal wall that there is no actual muscular disruption. This report presents a case in which abdominal muscle activities were accurately and quantitatively measured using ultrasonography (US) and surface electromyography in a patient with abdominal pseudohernia.

Patient Concerns: A 62-year-old man presented with a marked protrusion on the left abdomen with increasing abdominal pressure.

The role of selenium metabolism and selenoproteins in cartilage homeostasis and arthropathies.

As an essential nutrient and trace element, selenium is required for living organisms and its beneficial roles in human health have been well recognized. The role of selenium is mainly played through selenoproteins synthesized by the selenium metabolic system. Selenoproteins have a wide range of cellular functions including regulation of selenium transport, thyroid hormones, immunity, and redox homeostasis.

Clinical Practice Guideline for Cardiac Rehabilitation in Korea: Recommendations for Cardiac Rehabilitation and Secondary Prevention after Acute Coronary Syndrome.

Though clinical practice guidelines (CPGs) for cardiac rehabilitation (CR) are an effective and widely used treatment method worldwide, they are as yet not widely accepted in Korea. Given that cardiovascular (CV) disease is the second leading cause of death in Korea, it is urgent that CR programs be developed. In 2008, the Government of Korea implemented CR programs at 11 university hospitals as part of its Regional Cardio-Cerebrovascular Center Project, and 3 additional medical facilities will be added in 2019.

Hepatic Cellular Distribution of Silica Nanoparticles by Surface Energy Modification.

The cellular distribution of silica nanoparticles (NPs) in the liver is not well understood. Targeting specific cells is one of the most important issues in NP-based drug delivery to improve delivery efficacy. In this context, the present study analyzed the relative cellular distribution pattern of silica NPs in the liver, and the effect of surface energy modification on NPs.

Revisiting respiratory muscle strength and pulmonary function in spinal cord injury: The effect of body positions.

Objectives: In the subjects with high cervical spinal cord injury (SCI), The difference of respiratory muscle strength and pulmonary function according to supine and sitting position were investigated whether there are changes in the tendency.

Methods: Twenty-three subjects with high cervical SCI and 23 subjects with low cervical and thoracic SCI were evaluated. The reference neurological level of injury for dividing the groups was fifth cervical vertebrae (C5).

Rhabdomyolysis with Peripheral Neuropathy: A Case Series and Literature Review.

BACKGROUND Rhabdomyolysis is a syndrome characterized by muscle necrosis and secretion of intracellular muscle components into the blood circulation. Acute compartment syndrome is a potential complication of severe rhabdomyolysis. CASE REPORT We report 3 cases of compartment syndrome-related peripheral neuropathy in alcoholic individuals with rhabdomyolysis.

Successful Management of Acquired Tracheomalacia of Patients With Amyotrophic Lateral Sclerosis: A Report of Three Cases.

Tracheomalacia is characterized by weakness of the tracheal walls and supporting cartilage. It results in dynamic compression of the airway, where the cross-sectional area of the trachea is reduced by expiratory compression. Acquired tracheomalacia results from complications associated with the use of endotracheal or tracheostomy tubes.

Amount of Weight-Bearing During Tilt Table Inclination, With Neutral and Unilateral Knee Flexion Postures.

Objective: To analyze the amount of weight-bearing during tilt table increments, with a review of neutral and unilateral knee flexion postures.

Methods: There were 17 healthy participants enrolled in this study. The subjects were tilted from 10° to 90°, and their body weight was measured at each 10° increment.

Selenophosphate synthetase 1 and its role in redox homeostasis, defense and proliferation.

Selenophosphate synthetase (SEPHS) synthesizes selenophosphate, the active selenium donor, using ATP and selenide as substrates. SEPHS was initially identified and isolated from bacteria and has been characterized in many eukaryotes and archaea. Two SEPHS paralogues, SEPHS1 and SEPHS2, occur in various eukaryotes, while prokaryotes and archaea have only one form of SEPHS.