48,078 results match your criteria: "Viet Nam; Centre for Operational Research[Affiliation]"

The global probiotics market has been continuously growing, driven by consumer demand for immune-enhancing functional foods, dietary supplements, and natural therapeutics for gastrointestinal and gut function-mediated diseases. Probiotic microorganisms represent a diverse group of strains with complex but generalized mechanistic patterns. This review describes the various immunomodulatory mechanisms by which probiotics exert their effects, including the competitive exclusion of pathogenic microbes, production of antimicrobial substances, modulation of the immune system, and improvement of gut barrier function.

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Objectives: Chronic kidney disease (CKD) is associated with disability, low quality of life, and mortality. However, most cases are asymptomatic, often detected incidentally, or only recognized when they have progressed to the later stages with complications. The present study aimed to determine the prevalence of CKD and develop a predictive nomogram for CKD in Vietnamese adults.

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Surface-enhanced Raman spectroscopy (SERS) is widely recognized as a powerful analytical technique, offering molecular identification by amplifying characteristic vibrational signals, even at the single-molecule level. While SERS has been successfully applied for a wide range of targets including pesticides, dyes, bacteria, and pharmaceuticals, it has struggled with the detection of molecules with inherently low Raman scattering cross-sections. Urea, a key nitrogen-containing biomolecule and the diamide of carbonic acid, is a prime example of such a challenging target.

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Background: The Health Literacy Questionnaire (HLQ) is an increasingly used health literacy instrument that has been translated into many languages. The HLQ has 44 items and comprises 9 scales assessing the multidimensional construct of health literacy. This study reports the HLQ reliability and construct validity tested in people with chronic diseases living in Vietnam.

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Objectives: This study aimed to determine doctors' level of adherence to the natriuretic peptide testing guideline and to identify the factors influencing their adherence.

Design: Cross-sectional study.

Setting: Web-based survey.

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Sleep, Mood, and Economic Preferences.

Eval Rev

January 2025

Research Department, NOTT Innovative Technology PTE. Ltd, Singapore, Singapore.

This study used daily experimental data from smart bands worn by 142 respondents to investigate the relationship between the number of minutes slept and self-reported mood. The results showed that more minutes of sleep were associated with improved mood. Time preferences, altruism, and trust were also associated with mood.

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Based on molecular networking-guided isolation, 15 previously undescribed hydrogenated phenanthrene glycosides, including eight hexahydro-phenanthrenone glycosides, four tetrahydro-phenanthrenone glycosides, one dihydro-phenanthrenol glycoside, two dimers, and two known dihydrophenanthrene glycosides, were isolated from W.T.Wang, a popular regional edible vegetable at the northwest region of Vietnam.

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Mnong Râlâm is a South Bahnaric language (Austroasiatic) that is traditionally described as preserving a voicing contrast in onset obstruents, contrary to other languages of the Mnong/Phnong continuum. Acoustic results yield evidence that this voicing distinction is less robust than previously suggested and is redundant with a register contrast realized on following vowels through modulations of F1 at vowel onset (and more limited variations of F2 and voice quality). A perception experiment also shows that F1 weighs heavier than closure voicing in identification.

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Recombinant expression and characterization of the family 5 cellulase from in BL21-CodonPlus (DE3)-RIPL.

Biochem Biophys Rep

March 2025

Institute of Biotechnology, Bioengineering and Food Systems, Advanced Engineering School, Far Eastern Federal University, Vladivostok, 690922, Russia.

B. velezensis RB. IBE29 is a chitinolytic bacterium originally isolated from agricultural soil of Vietnam.

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Acute respiratory distress syndrome (ARDS) secondary to chlorine gas inhalation is a rare yet critical condition that can lead to severe respiratory failure if not managed promptly. This case report presents a 43-year-old male who developed ARDS after accidental exposure to chlorine gas during pool maintenance. The patient's condition deteriorated rapidly, with symptoms progressing to acute pulmonary edema and severe hypoxemia, requiring immediate transfer to the intensive care unit (ICU).

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Electrolytic glucose oxidation has garnered great interest in energy-saving hydrogen generation. However, high charge-transfer resistance and inefficient active centers have been recognized as the primary issues for poor electrochemical performance. In this study, for the first time, we offer a novel defect-rich CeO /β-Ni(OH) composite nanosheet-decorated Ni foam electrocatalyst (denoted as Ce@NF-GA), synthesized a unique hydrothermal approach under the co-participation of glycerol and acetic acid.

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Background: Cancer and its treatments significantly affect the quality of life (QoL) of patients. This remains understudied among Vietnamese women with cancer.

Objectives: This study explored the QoL of Vietnamese women with cancer and identified key influencing factors.

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Fabricating ZnO@C composites based on shell-derived cellulose for high performance lithium-ion battery anodes.

Heliyon

December 2024

Department of Chemical, Biological & Battery Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea.

In this study, shell-derived cellulose was successfully produced, and the hydrothermal method was employed to generate ZnO@C (ZOC) composites, which were then subjected to calcination in N gas at a temperature of 600 °C for varying durations. X-ray diffraction and thermogravimetric analyses demonstrated that the annealing duration had a substantial impact on the quantities of C and ZnO in the ZOC composites. The scanning electron microscope images indicated the presence of ZnO nanoparticles on the surface of the C phase and revealed a similar morphology among the ZOC composites.

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The adsorption of small organic molecules on pristine VC MXene and its derivatives is investigated by first-principles density functional theory calculations. By employing state-of-the-art van der Waals (vdW) density functionals, the binding affinity of studied molecules, , CH, CO, and HO on MXene adsorbents is well described by more recent vdW functionals, , SCAN-rvv10. Although both CH and CO are nonpolar molecules, on pristine and oxygen-vacancy surfaces, they show a different range of adsorption energies, in which CH is more inert and has weaker binding than CO.

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Unlabelled: This research aimed to assess the biological characteristics of both submerged culture mycelium and artificial basidioma of NTH-PL4. The extraction yield from the basidioma surpassed that of the mycelium. The use of hot water extract resulted in the highest total carbohydrate content, predominantly found in the basidioma.

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Total eyebrow reconstruction with a free superficial temporal artery flap: A case report.

JPRAS Open

March 2025

Department of Plastic and Aesthetic Surgery, Tra Vinh University, Tra Vinh, Vietnam.

The eyebrow plays a crucial role in facial aesthetics and expression. Reconstructing an eyebrow defect remains a challenge due to the unique characteristics of eyebrow hair. While various advanced methods exist, we report the first documented use of a free superficial temporal artery flap for total eyebrow reconstruction.

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Introduction: In Germany, 0.25% of the total population are persons with a Vietnamese migration background. There are almost no studies on this particular group of immigrants.

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Superior effect of mini-implant anchorage in the treatment of skeletal class II malocclusion.

J Orthod Sci

November 2024

Department of Orthodontics and Pedodontics, Faculty of Dentistry, Van Lang University, Binh Thanh District, Ho Chi Minh City, Vietnam.

Objectives: To evaluate the effectiveness of mini-implant (MI) anchorage versus conventional anchorage for the treatment of skeletal class II malocclusion.

Materials And Methods: The study was conducted on 64 patients with skeletal class II malocclusion. The patients were divided into two groups: 1) 32 patients underwent conventional anchorage, and 2) 32 patients underwent MI anchorage.

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Investigating the characteristics of the mandibular canal in cone beam CT.

J Orthod Sci

November 2024

Department of Pediatrics Dentistry and Orthodontics, Faculty of Odonto-Stomatology, Can Tho University of Medicine and Pharmacy, Can Tho City, Vietnam.

Context: The mandibular canal (MC) is an essential landmark that should be considered before any surgeries. Therefore, accurately assessing the location and characteristics of the MC in cone beam computed tomography (CBCT) imaging is very important.

Aims: To determine the characteristics of the MC in relation to adjacent anatomical structures in CBCT projections.

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The tight junction (TJ), a type of cell-cell junction, regulates the permeability of solutes across epithelial and endothelial cellular sheets and is believed to maintain cell polarity. However, recent studies have provided conflicting views on the roles of TJs in epithelial polarity. Membrane proteins, including occludin, claudin, and the junction adhesion molecule, have been identified as TJ components.

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Surface-enhanced Raman scattering (SERS) represents a compelling detection methodology centered on the electromagnetic fields, commonly termed "hot spots", generated around noble nanoparticles. Nonetheless, the efficacy of electromagnetic field (EMF) amplification is constrained when utilizing individual nanoparticles. There has been a notable lack of experimental and theoretically simulated studies regarding the increase of the electromagnetic field when gold nanorods with different aspect ratios undergo self-assembly in either perpendicular or parallel orientations to substrates.

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As an opportunistic pathogen, is often associated with severe respiratory infections. A study conducted in an ICU of a tertiary hospital in Vietnam, where infection management is relatively good, yielded only 18 clinical isolates of over 6 months. Though the number is small, treating infections is highly complicated.

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Clinical guidelines typically endorse conventional therapies such as 5-aminosalicylic acid (5-ASA) as the mainstay of ulcerative colitis management. However, the degree of adoption and application of guideline recommendations by physicians within Asia remains unclear. This study aims to understand the prescribing patterns of 5-ASA and implementation of current guideline recommendations across Asian clinical practice.

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The mitochondrial outer membrane iron-sulphur ([Fe-S]) protein mitoNEET has been extensively studied as a target of the anti-inflammatory and type-2 diabetes drug pioglitazone and as a protein affecting mitochondrial respiratory rate. Despite these extensive past studies, its molecular function has yet to be discovered. Here, we applied an interdisciplinary approach and discovered an explicit nitric oxide (NO) access site to the mitoNEET [2Fe-2S] cluster.

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