Correction: Shape-controlled synthesis of micro-/nanosized Cu particles with spherical and polyhedral shapes using the polyol process.

[This corrects the article DOI: 10.1039/D4RA03643C.].

Shape-controlled synthesis of micro-/nanosized Cu particles with spherical and polyhedral shapes using the polyol process.

This study reports the synthesis of Cu micro-/nanosized particles through the polyol process. Cu particles were synthesized by reducing copper(ii) chloride in ethylene glycol (EG), polyvinylpyrrolidone (PVP), and potassium bromide (KBr) at low temperatures with or without the use of sodium borohydride (NaBH).

Characteristics of Ag-incorporated bioactive glasses prepared by a modified sol-gel method with a shortened synthesis time and without the use of catalysts.

This work presents the preparation of bioactive glasses 70SiO-(26 - )CaO-4PO-AgO (with = 0, 1, 3, 10 mol%) by a modified sol-gel method with reduced synthesis time based on hydrothermal reaction in a medium without acid or base catalysts. The synthetic materials were characterized by several physical-chemical techniques such as TG-DSC, XRD, SEM, TEM, and N adsorption/desorption measurement. The analysis data confirmed that the glass sample not containing Ag has a completely amorphous structure, while glass samples containing Ag exhibited a pure phase of metallic nano-silver in the glass amorphous phase.

One-stage reconstruction of the massive overlying skin and Achilles tendon defects using a free chimeric anterolateral thigh flap with fascia lata.

Background: Treatment for large defects in the non-weight-bearing Achilles tendon and soft tissues remains a reconstructive challenge. The free composite anterolateral thigh flap (ALT) with fascia lata (FL) has been indicated in the single-stage reconstruction of the Achilles tendon and soft tissue defect and this technique remain some disadvantages, such as the inability to perform primary flap thinning, requiring secondary flap thinning, and the delayed normalization of the range of motion of the ankle joint. The free chimeric ALT flap with FL was introduced as a novel alternative with many advantages in reconstructing the Achilles tendon and soft tissue defects.

Evaluation of Bite Force After Treatment of Le Fort Fractures by Internal Fixation and Mandibulomaxillary Fixation.

Objectives: Evaluation of bite force one, two, and four weeks after discharge following treatment of Le Fort I and/or Le Fort II fracture by rigid fixation and mandibulomaxillary fixation.

Objective: The aim of this study was to evaluate bite force following treatment of Le Fort I and/or Le Fort II fractures by rigid fixation and mandibulomaxillary fixation at one, two, and four weeks after discharge. This provides valuable results to guide the development of a treatment protocol for Le Fort fractures.

A Novel Approach to the Treatment of Le Fort Fractures Using Internal Fixation to Achieve Mandibulomaxillary Fixation.

Background: We aimed to determine the minimum effective period of mandibulomaxillary fixation after the inadequate internal fixation of Le Fort I or Le Fort II fracture.

Objective: The aim of this study was to investigate the stability of the skeleton after the treatment of Le Fort I or Le Fort II fractures by measuring bite forces and to determine the minimum time required for effective mandibulomaxillary fixation following treatment with internal fixation and mandibulomaxillary fixation.

Method: A prospective study was performed to examine the treatment of Le Fort I or Le Fort II fracture in the Department of Maxillofacial Surgery at the National Hospital of Odonto-Stomatology in Ho Chi Minh City, Vietnam.

Clinical and Laboratory Findings among Patients with Toxocariasis in Medic Medical Center, Ho Chi Minh City, Vietnam in 2017-2019.

Background: Human toxocariasis is prevalent in many countries but this disease has been rarely reported from Vietnam. We aimed to investigate the clinical and laboratory findings and assess possible association between these findings in patients with toxocariasis in Vietnam.

Methods: A prospectively study, between October 2017 and June 2019 was performed involving 120 toxocariasis patients at Medic Medical Center, Ho Chi Minh City, Vietnam.

The kinetic profile of clinical and laboratory findings and treatment outcome of patients with toxocariasis.

Objectives: Human toxocariasis is a widespread zoonosis for which a chemotherapy decision and therapy effectiveness are difficult to determine. We aimed to investigate the kinetic profile of clinical and laboratory findings and treatment outcome of patients with toxocariasis in Vietnam.

Methods: The prospective study was conducted between October 2017 and June 2019.

Kinetics of CD4 T Helper and CD8 Effector T Cell Responses in Acute Dengue Patients.

The protective or pathogenic role of T lymphocytes during the acute phase of dengue virus (DENV) infection has not been fully understood despite its importance in immunity and vaccine development. This study aimed to clarify the kinetics of T lymphocyte subsets during the clinical course of acute dengue patients. In this hospital-based cohort study, 59 eligible Vietnamese dengue patients were recruited and admitted.

Polystyrene Nanoparticles Induce Apoptosis or Necrosis With or Without Epidermal Growth Factor.

Polystyrene nanoparticles (PS NPs) are biocompatible and low toxic material to biological systems. In this mind, PS NPs are widely used as a model for studying the interaction between nanoparticles and cells. Even PS NPs showed low toxicity, they could affect to some cellular responses.

Plasma cell-free DNA: a potential biomarker for early prediction of severe dengue.

Background: Considerable progress has been made in dengue management, however the lack of appropriate predictors of severity has led to huge number of unwanted admissions mostly decided on the grounds of warning signs. Apoptosis related mediators, among others, are known to correlate with severe dengue (SD) although no predictive validity is established. The objective of this study was to investigate the association of plasma cell-free DNA (cfDNA) with SD, and evaluate its prognostic value in SD prediction at acute phase.

Association between dengue severity and plasma levels of dengue-specific IgE and chymase.

There is no definitive predictor of dengue severity, and this has led to a very large number of unnecessary hospitalizations worldwide. Although mast cell mediators are believed to a play role in dengue severity, the lack of precise kinetic data demands further research on early predictors. We enrolled 111 patients with confirmed dengue and 85 with "other febrile illness" (OFI) in a hospital-based prospective study in Vietnam.

Advanced Strategies in the Diagnosis and Treatment of Patients with Coronary Artery Disease and Heart Failure: When Heart Failure Causes Ischemia and Angiotensin Converting Enzyme Inhibitor and Betablockers Helps in Diuresis.

In the diagnosis and management of patients with Coronary Artery Disease (CAD) and chronic Left Ventricular (LV) dysfunction or Heart Failure (HF), there are many uncertainties because of the non-specificity of the symptoms and signs of HF. Usually, severe CAD causes LV dysfunction. However, not rarely, LV dysfunction is the cause or aggravation of ischemia to many subsets of patients with or without CAD.

Bexarotene Does Not Clear Amyloid Beta Plaques but Delays Fibril Growth: Molecular Mechanisms.

In 2012, it was reported that anticancer drug bexarotene reduced amyloid plaque and improved mental functioning in a small sample of mice engineered to exhibit Alzheimer's like symptoms. It has been suggested that bexarotene stimulates expression of apolipoprotein E (ApoE) leading to intracellular clearance of amyloid beta (Aβ). However, the effect of bexarotene on clearance of plaques has not been seen in some mouse models.

Epidermal Growth Factor Enhances Cellular Uptake of Polystyrene Nanoparticles by Clathrin-Mediated Endocytosis.

The interaction between nanoparticles and cells has been studied extensively, but most research has focused on the effect of various nanoparticle characteristics, such as size, morphology, and surface charge, on the cellular uptake of nanoparticles. In contrast, there have been very few studies to assess the influence of cellular factors, such as growth factor responses, on the cellular uptake efficiency of nanoparticles. The aim of this study was to clarify the effects of epidermal growth factor (EGF) on the uptake efficiency of polystyrene nanoparticles (PS NPs) by A431 cells, a human carcinoma epithelial cell line.

Criteria of "persistent vomiting" in the WHO 2009 warning signs for dengue case classification.

Introduction: Dengue is a viral disease that spreads rapidly in the tropic and subtropic regions of the world and causes 22,000 deaths annually. In 2009, the World Health Organization (WHO) released a new classification of dengue infections, which divided them into three categories: dengue without warning sign (D), dengue with warning sign (DWS), and severe dengue (SD). However, researchers have been using different criteria to define persistent vomiting; therefore, we aimed to evaluate the ability of the number of vomiting times in early prediction of SD development among D/DWS patients.

A Proteomic Approach Identifies Candidate Early Biomarkers to Predict Severe Dengue in Children.

Background: Severe dengue with severe plasma leakage (SD-SPL) is the most frequent of dengue severe form. Plasma biomarkers for early predictive diagnosis of SD-SPL are required in the primary clinics for the prevention of dengue death.

Methodology: Among 63 confirmed dengue pediatric patients recruited, hospital based longitudinal study detected six SD-SPL and ten dengue with warning sign (DWS).

Fuchs' heterochromic cyclitis: a post-infectious manifestation of ocular toxoplasmosis?

The purpose of this article is to report the development of Fuchs' heterochromic cyclitis (FHC) secondary to toxoplasmosis chorioretinitis. The design is based on observational case series report. We report in this article six cases of typical FHC developing secondary to ocular toxoplasmosis.

High tuberculosis prevalence in a psychiatric hospital in Vietnam.

Little is known about tuberculosis (TB) prevalence in psychiatric hospitals in Vietnam, but prevalence may be higher than in the general population. We assessed the TB prevalence among in-patients of a psychiatric hospital in 2005 in Danang City, Vietnam. Of 300 in-patients, 70 had an abnormal X-ray or prolonged cough, and underwent sputum smear examinations.

[Uveitis: late complication of undiagnosed Whipple disease].

We report a case of severe chronic bilateral uveitis in a 60-year-old white man without neurological manifestations. Spondylarthritis and isolated malabsorption suggested the diagnosis of Whipple's disease. A normal duodenal biopsy delated the diagnosis, who was secondarily demonstrated an adenopathy biopsy and macrophage study on vitrectomy sample (macrophage distended by periodic acid-Schiff positive material).

Morphology of primate's dopaminergic amacrine cells as revealed by TH-like immunoreactivity on retinal flat-mounts.

Dopaminergic (DA) cells have been revealed by immunohistochemical localization of tyrosine hydroxylase in the retina of cynomolgus monkey, chimpanzee and human. The DA neurons were visualized in cross-sections as well as in flat-mounts of retina. The comparison revealed a striking morphological similarity between the DA neurons in the three species.

Endemic goiter in Vietnam.

Endemic goiter involves about 15% of the population of Vietnam. To define the role of various factors which contribute to endemic goiter in Vietnam, we surveyed 935 people in Vancon, a lowland commune with goiter appearing only in the past decade, and 619 people in Dich Giao, a highland commune with endemic goiter treated erratically with iodized salt. In Dich Giao, cassava, a goitrogenic food, constitutes half of the dietary caloric intake.

Thymic involution in pregnant mice. I. Characterization of the remaining thymocyte subpopulations.

Pregnancy-induced thymic atrophy was studied in mice during the course of syngeneic gestation and the post-partum period. Cortical thymocytes were greatly reduced in number as shown by the binding of fluorescein-labelled PNA. The pool of steroid-resistant (SR) medullary thymocytes appeared unchanged in pregnant mice when studied by means of a specific heteroantiserum (SRCA).

Thymic involution in pregnant mice. II. Functional aspects of the remaining thymocytes.

Non-specific immunological modifications in mice during syngeneic gestation can be demonstrated. A dramatic transient thymic involution results from a significant reduction in the subpopulations of the thymic cortex with the remaining thymocytes being mainly medullary in nature. Response to PHA and Con A is greatly reduced in this pool which can normally be strongly stimulated.