J Am Podiatr Med Assoc
November 2024
Background: We compared the effectiveness of metatarsal osteotomy, specifically using the osteoclasis (OC) technique, with that of metatarsal head resection (MHR) in healing distal metatarsal plantar ulcers.
Methods: This retrospective study reviewed patients who underwent OC or MHR for the treatment of submetatarsal ulcers between January 1, 2014, and December 31, 2017. Patients with infected ulcers or osteomyelitis were excluded.
We herein report the fabrication strategy of a robust catalyst for the formic acid electro-oxidation reaction (FAOR) combining the advantages of a TiO-related support and the synergistic effects of NiPtCo alloy. With the predominant dehydrogenation pathway, the NiPtCo/TiWO catalyst shows remarkable FAOR mass activity and specific activity of 0.45 A mg and 1.
View Article and Find Full Text PDFTernary Pt-based structures are a positive progress in addressing the disadvantages of monometallic and bimetallic Pt-based alloys for the electrochemical oxidation process of simple alcohols, which is a vital half-reaction in fuel cell technologies. We herein report a facile NaBH-assisted ethylene glycol reduction process for fabricating a series of nanosized PtRuNi ternary alloys to explore the relationship between physicochemical properties and electrocatalytic behaviors for the acidic methanol oxidation reaction (MOR). Owing to a balance between lattice strain and synergistic effects, the PtRuNi/C electrocatalyst shows the highest MOR efficiency with the mass activity/specific activity of 844.
View Article and Find Full Text PDFEccrine porocarcinoma is a rare malignant tumor of the eccrine sweat gland. This malignancy occurs most commonly in the lower extremities. It tends to occur in patients aged 60 to 80 years, affecting men and women equally.
View Article and Find Full Text PDFIntroduction: Patients with diabetes and peripheral neuropathy have a 25% risk of developing a foot ulcer, and these can lead to soft tissue infections that worsen and result in osteomyelitis. While Charcot neuroarthropathy is not as common as osteomyelitis, it is often misdiagnosed as osteomyelitis.
Case Reports: Three patients presented with diabetes, neuropathy, and foot ulcers.
Ternary NiRuPt nanoscale alloy on hybrid TiIrO-C composite is herein reported to overcome the high cost and tenuous catalytic efficiency of anode catalysts in direct ethanol fuel cells. The small-size NiRuPt alloy is anchored on the TiIrO-C surface via a NaBH-ethylene glycol-assisted coreduction route. Benefiting from advantages of favorable structure and synergistic effects of compounds, the NiRuPt/TiIrO-C catalyst exhibits high electrocatalytic performance for the ethanol electro-oxidation reaction (EOR) with mass activity of 720.
View Article and Find Full Text PDFThe hybridization of MoPt with ultralow Pt content (2.81 wt%) on a rutile TiIrO-C composite (MoPt/TiIrO-C) is fabricated by a self-growth-assisted reduction route, serving as an efficient catalyst for the hydrogen evolution reaction (HER). Due to unique structural features, the MoPt/TiIrO-C catalyst requires an extremely low overpotential of 21.
View Article and Find Full Text PDFDesigning a cost-effective catalyst with high performance towards the oxygen electro-oxidation reaction (ORR) is of great interest for the development of green energy storage and conversion technologies. We report herein a facile self-assembly strategy in a mild reducing environment to realize an urchin-like NiPt bimetallic alloy with the domination of the (111) facets as an efficient ORR electrocatalyst. In the rotating-disk electrode test, the as-obtained NiPt nanourchins (NUCs)/C catalyst demonstrates an increase in both onset potential (0.
View Article and Find Full Text PDFIntroduction: When Viet Nam launched the Expanded Programme on Immunization in 1981, it covered six vaccines, including measles. Subsequently, Viet Nam experienced a marked reduction in measles infections. A nationwide measles epidemic occurred in April 2014 and an investigation found that 86% of affected children aged 9 months to 10 years were not fully vaccinated; therefore, understanding the reasons for not vaccinating could improve vaccination coverage.
View Article and Find Full Text PDFBackground: Hand, foot and mouth disease (HFMD) is a public health problem in Viet Nam, and studies have reported seasonal fluctuation in the occurrence of HFMD. This study sought to describe the occurrence of HFMD and its associated meteorological factors in Dak Lak province, Viet Nam.
Methods: Monthly data on HFMD cases were collected from all commune health stations in Dak Lak province from 2012 through 2013.
Finding out robust active and sustainable catalyst towards alcohol electro-oxidation reaction is major challenges for large-scale commercialization of direct alcohol fuel cells. Herein, a robust Pt nanowires (NWs)/TiWO electrocatalyst, as the coherency of using non-carbon catalyst support and controlling the morphology and structure of the Pt nanocatalyst, was fabricated via an effortless chemical reduction reaction approach at room temperature without using surfactant/stabilizers or template to assemble an anodic electrocatalyst towards methanol electro-oxidation reaction (MOR) and ethanol electro-oxidation reaction (EOR). These observational results demonstrated that the Pt NWs/TiWO electrocatalyst is an intriguing anodic electrocatalyst, which can alter the state-of-the-art Pt NPs/C catalyst.
View Article and Find Full Text PDFIn this work, mesoporous TiWO₂ materials with high conductivity and surface area as promising catalyst support for Pt in Proton-Exchange Membrane Fuel Cells (PEMFCs) were synthesized via a single-step solvothermal process at low-temperature without using any surfactants or stabilizers. The characterizations of material are measured via XRD, TEM, SEM-EDS, and BET as well as electronic conductivity measurement. As a result, TiWO₂ formed a homogenous solid solution with mesoporous anatase-TiO₂ structure and uniformly spherical nanoparticles morphology of about ~10 nm diameter, together with a high electrical conductivity of 0.
View Article and Find Full Text PDFThe degradation of Pt-based catalysts is considered as the main barrier to the commercialization of fuel cells. M-doped TiO2 (M is a transition metal) has been investigated to improve the stability of electrocatalysts. Recently, W-doped TiO2 materials have been found as a good catalyst support for the photocatalyst applications but their application in Proton-exchange membrane fuel cell application has rarely been reported.
View Article and Find Full Text PDFNon-carbon materials are considered as the promising candidates for carbon-based catalyst support to increase the durability of proton exchange membrane fuel cells (PEMFCs). Due to the high stability and good electrical conductivity of TiO2, M-doped TiO2 (M is transition metals: Mo, Ru, V, W) is an emerging candidate for Pt nanoparticles support on the cathode side of PEMFCs. In this research, the synthesis mechanism of Ti0.
View Article and Find Full Text PDFThe Hand, Foot and Mouth Disease (HFMD) outbreaks occurred throughout Daklak province, Vietnam in 2011. This study reviewed all 744 medical records of HFMD patients admitted to Daklak Hospital in 2011 to describe the clinical characteristics of HFMD patients and determined factors associated with severe illness. Among 744 patients, 63 (8.
View Article and Find Full Text PDFThis study compared the efficacy and safety of a human acellular dermal matrix (ADM), D-ADM, with a conventional care arm and an active comparator human ADM arm, GJ-ADM, for the treatment of chronic diabetic foot ulcers. The study design was a prospective, randomized controlled trial that enrolled 168 diabetic foot ulcer subjects in 13 centers across 9 states. Subjects in the ADM arms received one application but could receive one additional application of ADM if deemed necessary.
View Article and Find Full Text PDFObjective: The purpose of this 16-week, multicenter, randomized, controlled trial was to assess the healed ulcer rate of a human acellular dermal matrix, DermACELL, compared with conventional care and a second acellular dermal matrix, Graftjacket, in the treatment of full-thickness diabetic foot ulcers.
Methods: One hundred sixty-eight patients were randomized into DermACELL, conventional care, and Graftjacket treatment arms in a 2:2:1 ratio. Patients in the acellular dermal matrix groups received either 1 or 2 applications of the graft at the discretion of the investigator.
Background: Dengue fever (DF) is a vector-borne disease that is sensitive to weather and climate variability. To date, however, this relationship in coastal northern Vietnam has not been well documented.
Objectives: This paper aims to examine the associations between meteorological variables and dengue incidence in Haiphong, Vietnam, over the period 2008-2012.
Background: In 2011, a large outbreak of hand, foot and mouth disease (HFMD) in Vietnam resulted in 113,121 children seeking medical attention, of whom170 died. Understanding the epidemiology of fatal HFMD may improve treatment and help targeting prevention activities for vulnerable populations. We describe epidemiological and clinical characteristics of children who died from HFMD in Vietnam in 2011.
View Article and Find Full Text PDFBackground: Dengue is a leading cause of severe illness and hospitalization in Vietnam. This study sought to elucidate the linkage between climate factors, mosquito indices and dengue incidence.
Methods: Monthly data on dengue cases and mosquito larval indices were ascertained between 2004 and 2008 in the Dak Lak province (Vietnam).
Background: Human plague caused by Yersinia pestis remains a public health threat in endemic countries, because the disease is associated with increased risk of mortality and severe economic and social consequences. During the past 10 years, outbreaks of plague have occasionally occurred in Vietnam's Central Highlands region. The present study sought to describe and analyse the occurrence of plague and its association with ecological factors.
View Article and Find Full Text PDFDiabetic foot ulcers are a major clinical challenge with enormous socioeconomic consequence. All advances in the understanding and management of this problem are eagerly received by wound specialists. The development of bioengineered skin--living skin equivalent--is an interesting event that could be significant in the management of lower extremity wounds such as the diabetic foot ulcer.
View Article and Find Full Text PDFHypothesis: Promogran, a wound dressing consisting of collagen and oxidized regenerated cellulose, is more effective that standard care in treating chronic diabetic plantar ulcers.
Design: Randomized, prospective, controlled multicenter trial.
Setting: University teaching hospitals and primary care centers.
Xerosis is frequently noted in the feet of people with diabetes. The presence of xerosis increases the risk of complications, including infection and ulceration, making it imperative to counteract its effects. A prospective, randomized, controlled double-blind study was conducted to compare the efficacy of a test moisturizer containing 10% urea and 4% lactic acid versus its emulsion base vehicle in the treatment of xerosis of the feet in patients with diabetes.
View Article and Find Full Text PDF