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Truong Duong Thuy Thi,Tran Trang Huyen Thi,Nguyen Tam Thanh Thi,Tran Van Hong Thi 한국영양학회 2022 Nutrition Research and Practice Vol.16 No.5
BACKGROUND/OBJECTIVES Although children of ethnic minority groups are experiencing a transition from a predominance of undernutrition to overnutrition, there is little evidence of a dual-malnutrition burden. Therefore, this study examined the double burden of malnutrition among school-aged ethnic minority children living in mountainous areas and its association with their diets. SUBJECTS/METHODS A cross-sectional study was conducted from September 2019 to March 2020 in 3 mountainous areas of Northern Vietnam among 1,556 ethnic minority school-aged children. The prevalence of under-nutrition (stunting and thinness) and over-nutrition (overweight and obesity) were measured using the WHO 2006 child growth standards (height-for-age and BMI-for-age Z-score). Nutritional practices were evaluated by the frequency of food consumption based on a 4-level scale. RESULTS The percentage of children with stunting and thinness were 14.0% and 5.4%, respectively, while the figure for overweight/obesity was 9.4%. The factors positively associated with stunting were living in a family with more than 2 children or being Muong/other ethnicities compared to the Tay ethnicity. Children who consumed fish/shrimps/crabs or milk weekly/daily were less likely to be undernourished compared to those who never consumed these foods. By contrast, children who never consumed foods rich in vitamin A precursors and vitamin A and fruit or consumed daily snacks/junk food were more likely to be overweight/obese. CONCLUSIONS Undernutrition remains a common issue among school-aged children and adolescents of ethnic minority groups, while over-nutrition exists simultaneously. Public health nutrition programs promoting adequate diets and positive lifestyle changes related to nutrition are essential to tackle the double burden of malnutrition among ethnic minority children.
Hong Thi Bich Truong,Hiep Nghia Bui,Hieu Trung Nguyen,Thanh-Luu Pham,Duy Ngoc Nguyen,Yuan-Shing Perng,Linh Thi My Lam,Thi-Dieu-Hien Vo,Van-Truc Nguyen,Ha Manh Bui 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.4
Electron-beam (EB) irradiation was employed to degrade enrofloxacin (ENR) in an aqueous solution. Thealgal growth inhibition test revealed that ENR exhibited low toxicity against the cyanobacterium Arthrospira sp., with anEC50-96 h value of 5.17mg/L. The Taguchi design also involved finding the best optimum for ENR treatment using EB. Results revealed that the high-efficiency removal of ENR in an aqueous solution was approximately 98.53% under theoptimum conditions of an absorbed dose of 5 kGy, a pH of 5.0, and an initial ENR concentration of 10 mg/L and anH2O2 concentration of 2mM. The ERR degradation under a couple of EB irradiation and H2O2 followed pseudo-firstorderkinetics, with an R2 of ~0.970. The major degradation pathways of ENR were suggested by density functional theory,natural bond orbital calculations, and liquid chromatography-tandem mass spectrometry (LC/MS/MS) analysis. Lifecycle assessment (LCA) was also performed to evaluate the impact of the EB on removing ENR; the industrial processwas designed based on laboratory tests aimed with the ReCiPe tool. The obtained results indicated that energy consumptionand H2O2 affect environmental impacts with order human health, ecology systems, and natural resource. The LCAalso proved that EB could be a green and efficient method for eliminating pharmaceutical contaminants in water.
Truong Giang Nguyen,Thanh Khiem Nguyen,Ham Hoi Nguyen,Hong Son Trinh,Tuan Hiep Luong,Minh Trong Nguyen,Van Duy Le,Hai Dang Do,Kieu Hung Nguyen,Van Minh Do,Quang Huy Tran,Cuong Thinh Nguyen 한국간담췌외과학회 2024 Annals of hepato-biliary-pancreatic surgery Vol.28 No.1
Backgrounds/Aims: Parenchymal-sparing anatomical hepatectomy (Ps–AH) based on portal ramification of the right anterior section (RAS) is a new technique to avoid unnecessarily transecting too much liver parenchyma, especially in cases of major anatomical hepatectomy. Methods: We prospectively assessed 26 patients with primary hepatic malignancies having undergone major Ps–AH based on portal ramification of the RAS from August 2018 to August 2022 (48 months). The perioperative indications, clinical data, intra-operative index, pathological postoperative specimens, postoperative complications, and follow-up results were retrospectively evaluated. Results: Among the 26 patients analyzed, there was just one case that had intrahepatic cholangiocarcinoma The preoperative level of α– Fetoprotein was 25.2 ng/mL. All cases (100%) had Child–Pugh A liver function preoperatively. The ventral/dorsal RAS was preserved in 19 and 7 patients, respectively. The mean surgical margin was 6.2 mm. The mean surgical time was 228.5 minutes, while the mean blood loss was 255 mL. In pathology, 5 cases (19.2%) had microvascular invasion, and in the group of HCC patients, 92% of all cases had moderate or poor tumor differentiation. Six cases (23.1%) of postoperative complications were graded over III according to the Clavien–Dindo system, including in three patients resistant ascites or intra-abdominal abscess that required intervention. Conclusions: Parenchymal-sparing anatomical hepatectomy based on portal ramification of the RAS to achieve R0-resection was safe and effective, with favorable short-term outcomes. This technique can be used widely in clinical practice.
Van-Long Truong,Yeon-Ji Bae,Ji-Hong Bang,Woo-Sik Jeong 고려인삼학회 2024 Journal of Ginseng Research Vol.48 No.3
Background: Studies have reported that the combination of two or more therapeutic compounds at certain ratios has more noticeable pharmaceutical properties than single compounds and requires reduced dosage of each agent. Red ginseng and velvet antler have been extensively used in boosting immunity and physical strength and preventing diseases. Thus, this study was conducted to elucidate the skin-protective potentials of red ginseng extract (RGE) and velvet antler extract (VAE) alone or in combination on ultraviolet (UVB)-irradiated human keratinocytes and SKH-1 hairless mice. Methods: HaCaT cells were preincubated with RGE/VAE alone or in combination for 2 h before UVB (30 mJ/cm²) irradiation. SKH-1 mice were orally given RGE/VAE alone or in combination for 15 days before exposure to single dose of UVB (600 mJ/cm²). Treated cells and treated skin tissues were collected and subjected to subsequent experiments. Results: RGE/VAE pretreatment alone or in combination significantly prevented UVB-induced cell death, apoptosis, reactive oxygen species production, and DNA damage in keratinocytes and SKH-1 mouse skins by downregulating mitogen-activated protein kinases/activator protein 1/nuclear factor kappa B and caspase signaling pathways. These extracts also strengthened the antioxidant defense systems and skin barriers in UVB-irradiated HaCaT cells and SKH-1 mouse skins. Furthermore, RGE/VAE co-administration appeared to be more effective in preventing UVB-caused skin injury than these extracts used alone. Conclusion: Overall, these findings suggest that the consumption of RGE/VAE, especially in combination, offers a protective ability against UVB-caused skin injury by preventing inflammation and apoptosis and enhancing antioxidant capacity.
Van-Long Truong,Hanitranirina R. G. Rarison,Yun-Seo Kim,Seung-Ok Lee,Yeon-Ji Bae,Ji-Hong Bang,Woo-Sik Jeong 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Enhancement of antioxidant and anti-inflammatory functions is thought to be effective strategies for disease prevention. This study aimed to investigate antioxidant and anti-inflammatory effects of extracts from roots, stems, and leaves of Polyscias fruticosa. Results showed that P. fruticosa root, stem and leaf extracts and their fractions exhibited strong antioxidant activities, as evident from DPPH, ABTS<SUP>+</SUP>, NO radical scavenging activities. In addition, antioxidant activity was highly correlated with total phenolic, flavonoid, and saponin contents. Moreover, these extracts and their fractions significantly inhibited NO production and the expression of iNOS, COX-2, IL-1β in LPS-stimulated RAW 264.7 cells; among them, hexane fraction exhibited stronger antioxidant and anti-inflammatory effects than other fractions. P. fruticosa root, stem, and leaf extracts and their fractions also simultaneously suppressed the ROS formation and enhanced the expression of antioxidant enzyme HO-1 in LPS-stimulated macrophages. These results suggest that P. fruticosa could be a source of antioxidant and anti-inflammatory agents for prevention and/or treatment of pathological conditions.
Chemical Constituents of Ficus drupacea Leaves and Their α-Glucosidase Inhibitory Activities
Phan, Van Kiem,Chau, Van Minh,Nguyen, Xuan Nhiem,Pham, Hai Yen,Hoang, Le Tuan Anh,Nguyen, Xuan Cuong,Bui, Huu Tai,Tran, Hong Quang,Truong, Nam Hai,Kim, Seung Hyun,Kwon, Se-Uk,Lee, Young-Mi,Kim, Young Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.1
Tho Truong Nguyen,Hong-Huy Tran,Thi Minh Cao,Viet Van Pham 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.9
Realizing a long-term, high-performance, and affordable photocatalytic setting for water splitting processesremains challenging despite the tremendous promise. We present a direct fabrication of graphitic carbon nitride-wrappedtitanate nanotube array (gC3N4-wrapped TNA) heterojunction photoelectrodes via a chemical vapor deposition-likeprocess that leverages the pyrolysis and sublimation of melamine at 500 oC. The gC3N4-wrapped TNA heterojunctionphotoelectrodes show a 16 times enhancement of current density and photo-response than bare TNAs. Such a remarkableenhancement comes from the effective charge separation of the gC3N4/TNA interfaces, consequently acceleratingwater splitting to generate oxygen under visible light. In addition, our gC3N4-wrapped TNA photoelectrodes are developedunder a neutral condition that significantly increases their widespread use for practical devices.
Carrier Based Two-state PWM Method For Optimising Voltage Error in Multilevel Inverters
Nguyen Van Nho,Ta Truong Cong,Hong-Hee Lee 전력전자학회 2007 ICPE(ISPE)논문집 Vol.- No.-
In the paper, a carrier based Two-state PWM technique will be proposed. This method is advantageous for reducing switching losses compared with conventional PWM techniques. Compared with single-state PWM method, it can achieve a better linear control characteristic and harmonic distortion performance. The carrier based PWM approach of the proposed method justifies a flexiblity of carrier techniques for achieving various PWM performances in practice. Even for three-level inverter, the harmonic content is low for medium and high modulation index and more improved if the number of levels is high. The proposed method is mathematically formulated and demonstrated by simulation and experimental results.
Nguyen, Huy Truong,Min, Jung-Eun,Long, Nguyen Phuoc,Thanh, Ma Chi,Le, Thi Hong Van,Lee, Jeongmi,Park, Jeong Hill,Kwon, Sung Won Elsevier 2017 Journal of pharmaceutical and biomedical analysis Vol.142 No.-
<P><B>Abstract</B></P> <P>Agarwood, the resinous heartwood produced by some <I>Aquilaria</I> species such as <I>Aquilaria crassna</I>, <I>Aquilaria malaccensis</I> and <I>Aquilaria sinensis</I>, has been traditionally and widely used in medicine, incenses and especially perfumes. However, up to now, the authentication of agarwood has been largely based on morphological characteristics, a method which is prone to errors and lacks reproducibility. Hence, in this study, we applied metabolomics and a genetic approach to the authentication of two common agarwood chips, those produced by <I>Aquilaria crassna</I> and <I>Aquilaria malaccensis</I>. Primary metabolites, secondary metabolites and DNA markers of agarwood were authenticated by <SUP>1</SUP>H NMR metabolomics, GC–MS metabolomics and DNA-based techniques, respectively. The results indicated that agarwood chips could be classified accurately by all the methods illustrated in this study. Additionally, the pros and cons of each method are also discussed. To the best of our knowledge, our research is the first study detailing all the differences in the primary and secondary metabolites, as well as the DNA markers between the agarwood produced by these two species.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Current examination of agarwood is mostly based on visual examination and thus prone to error. </LI> <LI> Multi-platforms metabolomics well distinguished two popular agarwood types. </LI> <LI> DNA markers also showed clear differences in genetic variation between two agarwood species. </LI> <LI> Metabolomics and genetic approach both well supported the authentication of agarwood. </LI> </UL> </P>