Publications by authors named "Hoang An"

Background: In our previous study, we demonstrated that headaches are highly prevalent among medical students in Vietnam. In the present study, we provide estimates of the associated symptom burden and impaired participation, utilizing these estimates to assess headache-related healthcare needs within this population.

Methods: The study followed the standardized methodology established by the Global Campaign against Headache.

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Measuring virus in biofluids is complicated by confounding biomolecules coisolated with viral nucleic acids. To address this, we developed an affinity-based microfluidic device for specific capture of intact severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Our approach used an engineered angiotensin-converting enzyme 2 to capture intact virus from plasma and other complex biofluids.

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The pathogenic mechanisms of many diseases are well understood at the molecular level, but there are prevalent syndromes associated with pathogenic signaling, such as diabetes and chronic inflammation, where our understanding is more limited. Here, we report that pathogenic signaling suppresses the mobility of a spectrum of proteins that play essential roles in cellular functions known to be dysregulated in these chronic diseases. The reduced protein mobility, which we call proteolethargy, was linked to cysteine residues in the affected proteins and signaling-related increases in excess reactive oxygen species.

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Acquired vulvar lymphangioma (AVL) is a rare but important condition that requires prompt diagnosis and appropriate management to alleviate symptoms and prevent complications. AVL can erupt locally as isolated or clustered lesions which range from translucent, fluid-filled vesicles to smooth, flesh-colored papules or nodules that exude serous or crystalline liquid spontaneously or after trauma. Clinically, it can also be asymptomatic.

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Article Synopsis
  • Headache disorders are a major cause of disability among young adults, and this study is the first to examine their prevalence among Vietnamese medical students.
  • Data were collected from 1,362 participants using structured interviews and diagnostic criteria, revealing that 82.6% experienced headaches in the past year, with specific rates of migraine at 21.8% and tension-type headache (TTH) at 54.0%.
  • Female students had a higher likelihood of experiencing migraines, while TTH was more common among older students, indicating varying patterns in headache types based on gender and age.
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In light of escalating environmental pollution and tremendous energy shortage, the development of multifunctional materials with diverse applications across biomedical and energy production platforms has become imperative. Among this domain, nanostructured heterogeneous composites based on semiconductors are exclusively promising owing to their distinct configurations. Notably, graphitic carbon nitride (g-CN (CN)) has drawn substantial interest as a sustainable candidate with surface functionality, electron-rich nature, and interconnected conjugation system along the polymeric matrix.

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Background: With transradial access (TRA) being more progressively used in neuroendovascular procedures, we compared TRA with transfemoral access (TFA) in middle meningeal artery embolization (MMAE) for chronic subdural hematoma (cSDH).

Methods: Consecutive patients undergoing MMAE for cSDH at 14 North American centers (2018-23) were included. TRA and TFA groups were compared using propensity score matching (PSM) controlling for: age, sex, concurrent surgery, previous surgery, hematoma thickness and side, midline shift, and pretreatment antithrombotics.

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Article Synopsis
  • The study looked at how young adults view the negative effects of drinking alcohol and found that some of these "bad" effects can seem okay or even good to them.!
  • Researchers tested different age groups (18-20 and 21-27), drinking habits, and student status to see how they rated 24 negative consequences of drinking.!
  • They discovered older young adults and those who drank less experienced fewer negative effects, while heavy drinkers reported more issues, but everyone mostly agreed on how negative those effects felt.!
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Mutations in isocitrate dehydrogenase 1 (IDH1) impart a neomorphic reaction that produces D-2-hydroxyglutarate (D2HG), which can inhibit DNA demethylases to drive tumorigenesis. Mutations affect residue R132 and display distinct catalytic profiles for D2HG production. We show that catalytic efficiency of D2HG production is greater in IDH1 R132Q than R132H mutants, and expression of R132Q in cellular and xenograft models leads to higher D2HG concentrations in cells, tumors, and sera compared to R132H.

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In the adsorption process for wastewater treatment, the adsorbent plays an important role. A composite adsorptive material composed of graphitic carbon nitride and agar-derived porous carbon (CNPC) was fabricated from simple precursors (melamine, thiourea, and agar) and through a facile procedure with different melamine and thiourea ratios. Characterization of CNPC proved a successful formation of a porous structure consisting of mesopores and macropores, wherein CNPC holds distinctive electrochemical (lowered resistance and higher specific capacity) and photochemical properties (lowered bandgap to 2.

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Article Synopsis
  • Middle meningeal artery embolization (MMAE) is being recognized as an effective treatment for non-acute subdural hematomas (NASHs), but its impact on coagulopathic patients needs further investigation.
  • In a study analyzing 537 patients undergoing MMAE from 2019 to 2023, researchers found that coagulopathy significantly increases the likelihood of needing additional surgical intervention post-treatment.
  • Specifically, patients with coagulopathy required rescue surgery at rates almost three times higher than those without coagulopathy, suggesting that anticoagulant and antiplatelet use may worsen outcomes.
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Article Synopsis
  • Middle meningeal artery embolization (MMAE) is a new treatment for a condition called chronic subdural hematomas (cSDHs), which are injuries inside the brain that can cause problems.
  • This study looked at two groups of patients: one that got only MMAE and another that had MMAE plus surgery to see which treatment worked better.
  • The results showed that both treatments were pretty much equally effective, meaning MMAE alone is a good option for some patients with cSDHs.
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Background: Smartphone and tablet apps that deliver health care education have been identified as effective in improving patient knowledge and treatment adherence in asthma populations. Despite asthma being the most common chronic disease in pediatrics, there are few apps that are targeted specifically for children. Only half of children with asthma have acceptable control of their symptoms, and 40%-98% do not use their inhalers correctly.

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Protozoal infections are a world-wide problem. The toxicity and somewhat low effectiveness of the existing drugs require the search for new ways of protozoa suppression. Snake venom contains structurally diverse components manifesting antiprotozoal activity; for example, those in cobra venom are cytotoxins.

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Mitochondrial DNA (mtDNA) deletion mutations cause many human diseases and are linked to age-induced mitochondrial dysfunction. Mapping the mutation spectrum and quantifying mtDNA deletion mutation frequency is challenging with next-generation sequencing methods. We hypothesized that long-read sequencing of human mtDNA across the lifespan would detect a broader spectrum of mtDNA rearrangements and provide a more accurate measurement of their frequency.

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In this study, silver-immobilized graphene oxide/chitosan (AGC/CTS) membranes were assembled by the solvent evaporation method, wherein Curcuma longa extract was used to synthesize silver-immobilized graphene oxide (AGC) nanocomposite. The characterization results showed that the AGC was successfully synthesized with AgNPs distributed quite evenly on GO sheets. The as-prepared AGC also exhibited high antibacterial activity and low cytotoxicity towards normal cell lines compared to human epithelial carcinoma cell lines.

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Background: The new sonolucent cranioplasty implant (clear polymethyl methacrylate, PMMA) adds functionality besides surgical reconstruction. One possible application uses the transcranioplasty ultrasound (TCUS) technique after PMMA cranioplasty to assess graft patency of extracranial-intracranial (EC-IC) bypass procedures.

Objective: To report our early multicenter experience.

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Background: By 2030, nonacute subdural hematomas (NASHs) will likely be the most common cranial neurosurgery pathology. Treatment with surgical evacuation may be necessary, but the recurrence rate after surgery is as high as 30%. Minimally invasive middle meningeal artery embolization (MMAE) during the perioperative period has been posited as an adjunctive treatment to decrease the potential for recurrence after surgical evacuation.

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Background: Manipulation of the pituitary stalk, posterior pituitary gland, and hypothalamus during transsphenoidal pituitary adenoma resection can cause disruption of water electrolyte regulation leading to diabetes insipidus (DI).

Objective: To determine whether pituitary stalk stretch is an independent risk factor for postoperative DI after pituitary adenoma resection.

Methods: A retrospective review was performed of patients undergoing endoscopic endonasal resection of pituitary macroadenoma between July 2010 and December 2016 by a single neurosurgeon.

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Background: Inhaled medications or inhalers provide first-line pharmacotherapeutic treatment for patients with asthma for both acute symptomatic relief and long-term management to keep symptoms under control. A good technique requires only basic instruction and training; however, a recent study identified that 92% of children do not follow all correct steps when using inhalers. There is a growing interest in technology-enhanced asthma education, with evidence demonstrating improvements in knowledge and treatment adherence.

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Background: Large arachnoid granulations that protrude into dural venous sinuses and partially obstruct outflow are an underappreciated etiology of pulsatile tinnitus (PT). Endovascular dural venous sinus stenting is thought to diminish turbulent venous outflow and may relieve obstruction caused by arachnoid granulations.

Methods: Four patients at two institutions were evaluated for unilateral PT.

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Background: PulseRider is an endovascular device that can be a useful adjunctive device for wide-necked bifurcation aneurysms. However, its use in distal vessels such as the anterior cerebral artery (ACA) has not been widely reported.

Observations: The authors reported the case of a 75-year-old woman who underwent coiling of a 6.

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Remdesivir is a leading therapy in patients with moderate to severe coronavirus 2 (SARS-CoV-2) infection; the majority of whom are older individuals. Remdesivir is a nucleoside analog that incorporates into nascent viral RNA, inhibiting RNA-directed RNA polymerases, including that of SARS-CoV-2. Less is known about remdesivir's effects on mitochondria, particularly in older adults where mitochondria are known to be dysfunctional.

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