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1.
Food Funct ; 2024 Aug 30.
Artículo en Inglés | MEDLINE | ID: mdl-39212491

RESUMEN

The purpose of this study was to evaluate the efficacy and safety of steamed ginger extract (GGE03) in subjects with mild knee osteoarthritis (OA). In total, 100 subjects were randomly assigned (1 : 1) to the GGE03 (0.48 g day-1 as GGE03) or placebo (0 g day-1 as GGE03) group and administered 1.6 g of the product for 12 weeks. Biomarkers were measured before and after intervention. At the efficacy endpoint, pain visual analog scale (VAS) Korean-Western Ontario and McMaster University Osteoarthritis Index (K-WOMAC; total scores, sub-scores) and patient global assessment (PGA) were found to be decreased in a statistically significantly manner in the GGE03 group compared to the placebo group. No significant changes were observed in any safety endpoint. These results suggest that GGE03 intake is useful as a functional food because it has beneficial effects in terms of improving joint pain as well as managing or preventing knee OA without side effects.

2.
Arch Virol ; 169(9): 178, 2024 Aug 16.
Artículo en Inglés | MEDLINE | ID: mdl-39150578

RESUMEN

The family Convolvulaceae comprises approximately 50-60 genera with approximately 1600-1700 species, exhibiting a rich diversity of morphological characteristics and occupying a broad range of ecological habitats. High-throughput sequencing identified a tentative new virus in the family Geminiviridae infecting Calystegia sepium var. japonica in South Korea. The 2,706 nt long genome comprises six open reading frames (ORFs). The analysis of the nucleotide sequence of the genome and the putative amino acid sequences of ORFs indicated that the virus was closely related to the members of the family Geminiviridae. The genome organization of the virus was similar to that of members of the genus Topilevirus in terms of the number of ORFs and splicing signal. However, the virus, tentatively named bindweed mottle virus (BWMV), may not be assigned to current genera into the family Geminiviridae.


Asunto(s)
Geminiviridae , Genoma Viral , Sistemas de Lectura Abierta , Filogenia , Enfermedades de las Plantas , Genoma Viral/genética , Geminiviridae/genética , Geminiviridae/clasificación , Geminiviridae/aislamiento & purificación , República de Corea , Enfermedades de las Plantas/virología , Secuenciación Completa del Genoma , Secuencia de Bases , Secuenciación de Nucleótidos de Alto Rendimiento
3.
Plants (Basel) ; 13(11)2024 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-38891246

RESUMEN

Elaeocarpus sylvestris var. ellipticus (ES), which our research group had confirmed inhibits influenza A and SARS-CoV-2 viruses, was investigated to identify new potent and selective inhibitors of herpes simplex virus-1 (HSV-1) replication. To clarify the optimal condition for ES extract (ESE), ES was extracted at different concentrations of 0, 30, 50, 70, and 100%, to screen for its anti-HSV-1 effect. Among these ESE samples, ESE50 (50% concentration) exhibited the strongest inhibition of HSV-1 replication (EC50 23.2 µg/mL) while showing low cytotoxicity on host cells (IC50 342.8 µg/mL). The treatment of ESE50 clearly demonstrated a decrease in the expression of ICP0 in the lungs of HSV-1-infected BALB/c nude mice, compared to the MOCK group. Geraniin, which was isolated from ESE50 and analyzed using ESI-MS and 1D-(1H- and 13C-) and 2D-NMR, showed greater potency in inhibiting HSV-1 replication, as determined by the plaque reduction assay (EC50 8.3 µg/mL) and luciferase inhibition (EC50 36.9 µg/mL). The results demonstrate that ESE50 and geraniin show great potential as candidates for new drug discovery in the treatment of HSV-1 and related diseases.

4.
PLoS One ; 19(5): e0303090, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38722902

RESUMEN

This study aimed to determine whether filtering out walking-related actigraphy data improves the reliability and accuracy of real-world upper extremity activity assessment in children with unilateral cerebral palsy. Twenty-two children aged 4-12 years diagnosed with unilateral cerebral palsy were included in this study, which was drawn from a two-phase randomized controlled trial conducted from July 2021 to December 2022. Data were collected from a tertiary hospital in Seoul, Republic of Korea. Participants were monitored using tri-axial accelerometers on both wrists across three time points (namely, T0, T1, and T2) over 3 days; interventions were used between each time point. Concurrently, an in-laboratory study focusing on walking and bimanual tasks was conducted with four participants. Data filtration resulted in a reduction of 8.20% in total data entry. With respect to reliability assessment, the intra-class correlation coefficients indicated enhanced consistency after filtration, with increased values for both the affected and less-affected sides. Before filtration, the magnitude counts for both sides showed varying tendencies, depending on the time points; however, they presented a consistent and stable trend after filtration. The findings of this research underscore the importance of accurately interpreting actigraphy measurements in children with unilateral cerebral palsy for targeted upper limb intervention by filtering walking-induced data.


Asunto(s)
Actigrafía , Parálisis Cerebral , Caminata , Humanos , Parálisis Cerebral/fisiopatología , Actigrafía/métodos , Niño , Caminata/fisiología , Masculino , Femenino , Preescolar , Reproducibilidad de los Resultados , República de Corea
5.
Plants (Basel) ; 13(10)2024 May 09.
Artículo en Inglés | MEDLINE | ID: mdl-38794376

RESUMEN

Cnidium monnieri fructus is widely used in traditional Oriental medicine for treating female genital disorders, male impotence, frigidity, and skin-related conditions in East Asia. However, the role of C. monnieri fructus extract (CMFE) in melanin synthesis is not well elucidated. This study aimed to investigate the anti-melanogenesis effect and mechanism of action of CMFE in α-MSH-stimulated B16F10 cells. Intracellular melanin content and tyrosinase activity were measured in α-MSH-stimulated B16F10 cells treated with various concentrations of CMFE (0.5-5 µg/mL). mRNA and protein levels of tyrosinase and MITF were evaluated using qRT-PCR and ting. CMFE's effect on the proteasomal degradation of tyrosinase was confirmed using a proteasomal degradation inhibitor, MG132. CMFE treatment activated p38, a protein associated with proteasomal degradation. Treatment with CMFE at up to 5 µg/mL showed no significant cytotoxicity. CMFE significantly reduced α-MSH-stimulated melanin production (43.29 ± 3.55% decrease, p < 0.05) and cellular tyrosinase activity (31.14 ± 3.15% decrease, p < 0.05). Although mRNA levels of MITF and tyrosinase increased, CMFE suppressed tyrosinase protein levels. The suppressive effect of CMFE on tyrosinase protein was blocked by MG132. CMFE inhibited melanogenesis by promoting the proteasome degradation of tyrosinase through p38 activation. These findings suggest that CMFE has the potential to be a natural whitening agent for inhibiting melanogenesis.

6.
Virol J ; 21(1): 86, 2024 04 15.
Artículo en Inglés | MEDLINE | ID: mdl-38622686

RESUMEN

BACKGROUND: Viruses have notable effects on agroecosystems, wherein they can adversely affect plant health and cause problems (e.g., increased biosecurity risks and economic losses). However, our knowledge of their diversity and interactions with specific host plants in ecosystems remains limited. To enhance our understanding of the roles that viruses play in agroecosystems, comprehensive analyses of the viromes of a wide range of plants are essential. High-throughput sequencing (HTS) techniques are useful for conducting impartial and unbiased investigations of plant viromes, ultimately forming a basis for generating further biological and ecological insights. This study was conducted to thoroughly characterize the viral community dynamics in individual plants. RESULTS: An HTS-based virome analysis in conjunction with proximity sampling and a tripartite network analysis were performed to investigate the viral diversity in chunkung (Cnidium officinale) plants. We identified 61 distinct chunkung plant-associated viruses (27 DNA and 34 RNA viruses) from 21 known genera and 6 unclassified genera in 14 known viral families. Notably, 12 persistent viruses (7 DNA and 5 RNA viruses) were exclusive to dwarfed chunkung plants. The detection of viruses from the families Partitiviridae, Picobirnaviridae, and Spinareoviridae only in the dwarfed plants suggested that they may contribute to the observed dwarfism. The co-infection of chunkung by multiple viruses is indicative of a dynamic and interactive viral ecosystem with significant sequence variability and evidence of recombination. CONCLUSIONS: We revealed the viral community involved in chunkung. Our findings suggest that chunkung serves as a significant reservoir for a variety of plant viruses. Moreover, the co-infection rate of individual plants was unexpectedly high. Future research will need to elucidate the mechanisms enabling several dozen viruses to co-exist in chunkung. Nevertheless, the important insights into the chunkung virome generated in this study may be relevant to developing effective plant viral disease management and control strategies.


Asunto(s)
Coinfección , Enanismo , Virus de Plantas , Virus ARN , Humanos , Viroma , Ecosistema , Cnidium/genética , ARN Viral/genética , Secuenciación de Nucleótidos de Alto Rendimiento/métodos , Virus de Plantas/genética , ADN , Filogenia
7.
BMC Pediatr ; 24(1): 273, 2024 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-38664706

RESUMEN

BACKGROUND: Accurate assessment of physical activity and motor function in children with cerebral palsy is crucial for determining the effectiveness of interventions. This study aimed to investigate the correlation between real-world activity monitoring outcomes and in-laboratory standardized hand function assessments in children with unilateral cerebral palsy. METHODS: Actigraphy data were collected over 3 days from children aged 4-12 years with unilateral cerebral palsy before in-laboratory assessments. To tackle the high dimensionality and collinearity of actigraphy variables, we first applied hierarchical clustering using the Pearson correlation coefficient as the distance metric and then performed a principal component analysis (PCA) to reduce the dimensionality of our data. RESULTS: Both hierarchical clustering and PCAs revealed a consistent pattern in which magnitude ratio variables (ln[affected side magnitude/less-affected side magnitude]) were more strongly associated with standardized assessments of hand function than with activity time and distance domain variables. Hierarchical clustering analysis identified two distinct clusters of actigraphy variables, with the second cluster primarily consisting of magnitude ratio variables that exhibited the strongest correlation with Melbourne Assessment 2, Pediatric Motor Activity Log, Assisting Hand Assessment, and Manual Ability Classification System level. Principal component 2, primarily representing the magnitude ratio domain, was positively associated with a meaningful portion of subcategories of standardized measures, whereas principal component 1, representing the activity time and distance component, showed limited associations. CONCLUSIONS: The magnitude ratio of actigraphy can provide additional objective information that complements in-laboratory hand function assessment outcomes in future studies of children with unilateral cerebral palsy. TRIAL REGISTRATION IN CLINICALTRIALS.GOV: NCT04904796 (registered prospectively; date of registration: 23/05/2021).


Asunto(s)
Actigrafía , Parálisis Cerebral , Mano , Humanos , Parálisis Cerebral/fisiopatología , Niño , Actigrafía/métodos , Femenino , Masculino , Preescolar , Mano/fisiopatología , Análisis de Componente Principal , Análisis por Conglomerados
8.
Int J Mol Sci ; 25(5)2024 Mar 04.
Artículo en Inglés | MEDLINE | ID: mdl-38474229

RESUMEN

The prevalence of metabolic syndrome is increasing globally due to behavioral and environmental changes. There are many therapeutic agents available for the treatment of chronic metabolic diseases, such as obesity and diabetes, but the data on their efficacy and safety are lacking. Through a pilot study by our group, Zingiber officinale rhizomes used as a spice and functional food were selected as an anti-obesity candidate. In this study, steam-processed ginger extract (GGE) was used and we compared its efficacy at alleviating metabolic syndrome-related symptoms with that of conventional ginger extract (GE). Compared with GE, GGE (25-100 µg/mL) had an increased antioxidant capacity and α-glucosidase inhibitory activity in vitro. GGE was better at suppressing the differentiation of 3T3-L1 adipocytes and lipid accumulation in HepG2 cells and promoting glucose utilization in C2C12 cells than GE. In 16-week high-fat-diet (HFD)-fed mice, GGE (100 and 200 mg/kg) improved biochemical profiles, including lipid status and liver function, to a greater extent than GE (200 mg/kg). The supplementation of HFD-fed mice with GGE (200 mg/kg) resulted in the downregulation of SREBP-1c and FAS gene expression in the liver. Collectively, our results indicate that GGE is a promising therapeutic for the treatment of obesity and metabolic syndrome.


Asunto(s)
Fármacos Antiobesidad , Síndrome Metabólico , Zingiber officinale , Ratones , Animales , Vapor , Síndrome Metabólico/tratamiento farmacológico , Proyectos Piloto , Tejido Adiposo/metabolismo , Obesidad/metabolismo , Extractos Vegetales/farmacología , Dieta Alta en Grasa , Fármacos Antiobesidad/farmacología , Lípidos/farmacología , Ratones Endogámicos C57BL , Células 3T3-L1 , Adipogénesis
9.
AMB Express ; 14(1): 30, 2024 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-38491208

RESUMEN

This study aimed to identify substances including Lactobacillus rhamnosus vitaP1 (KACC 92054P) that alleviate hangover-induced emotional anxiety and liver damage. The association between emotional anxiety caused by hangover and the genes P2X4, P2X7, SLC6A4 was investigated. In vitro and in vivo analyses were conducted to assess the influence of free-panica on alcohol-induced upregulated gene expression. Additionally, the concentration of AST, ALT, alcohol, and acetaldehyde in blood was measured. Free-panica, consisting of five natural products (Phyllanthus amarus, Phoenix dactylifera, Vitis vinifera, Zingiber officinale, and Lactobacillus rhamnosus), were evaluated for their regulatory effects on genes involved in alcohol-induced emotional anxiety and liver damage. The combination of these natural products in free-panica successfully restored emotional anxiety, and the concentration of AST, ALT, alcohol, and acetaldehyde in blood to those of the normal control group. These findings support the potential development of free-panica as a health functional food or medicinal intervention for relieving hangover symptoms and protecting liver from alcohol consumption.

10.
Medicine (Baltimore) ; 103(8): e37243, 2024 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-38394551

RESUMEN

RATIONALE: Epstein-Barr virus mucocutaneous ulcers (EBVMCUs) were officially recognized as a clinicopathologic entity in the 2017 revision of the World Health Organization classification, which often occurs in the elderly or in immunosuppressive condition presented as an isolated ulcerative lesion. EBVMCUs are defined as "shallow, sharply circumscribed, mucosal or cutaneous ulcers with underlying polymorphous infiltration." It mostly involves oral mucosa, but some appear in skin or gastrointestinal tract. Typically, patients with EBVMCUs display a slow disease progression and may even undergo spontaneous regression. PATIENT CONCERNS: This report describes the case of a 76-year-old woman who visited our outpatient clinic with the chief complaint of inflammation and ulceration on lower labial, lower right lingual gingiva seemed like acute necrotizing ulcerative gingivitis, and malignancy. DIAGNOSES: She was diagnosed with EBVMCU after tissue biopsy. INTERVENTIONS: Since most oral ulcerations usually appear in nonspecific form, it is important to check thoroughly for any underlying immunosuppressive systemic conditions and laboratory test results in case of viral infection. But she has no remarkable underlying immunosuppressive disorder. OUTCOMES: For this patient, she was initially diagnosed with EBVMCU and showed spontaneous healing, but then relapsed after 4 to 6 months. The patient was re-diagnosed as EBV-positive diffuse large B-cell lymphoma (EBV-positive DLBCLs) after re-biopsy. LESSONS: EBVMCU shows similar symptoms to malignant lesions or acute necrotizing ulcerative gingivitis but shows spontaneous healing. However, in case of EBV-positive DLBCLs, failing to detect and treat the disease in its early stages can lead to a fatal outcome. Thus, this case report highlights the differential diagnosis and appropriate treatment of EBVMCU and EBV-positive DLBCLs.


Asunto(s)
Infecciones por Virus de Epstein-Barr , Gingivitis Ulcerosa Necrotizante , Linfoma de Células B Grandes Difuso , Femenino , Humanos , Anciano , Herpesvirus Humano 4 , Úlcera/etiología , Infecciones por Virus de Epstein-Barr/complicaciones , Infecciones por Virus de Epstein-Barr/diagnóstico , Infecciones por Virus de Epstein-Barr/patología , Remisión Espontánea , Diagnóstico Diferencial , Gingivitis Ulcerosa Necrotizante/complicaciones , Gingivitis Ulcerosa Necrotizante/diagnóstico , Inmunosupresores , Linfoma de Células B Grandes Difuso/patología
11.
Life (Basel) ; 14(2)2024 Feb 18.
Artículo en Inglés | MEDLINE | ID: mdl-38398785

RESUMEN

BACKGROUND: Lung cancer is the predominant cause of cancer-related fatalities. This prompted our exploration into the anti-lung cancer efficacy of Labisia pumila, a species meticulously selected from the preliminary screening of 600 plants. METHODS: Through the strategic implementation of activity-guided fractionation, ardisiacrispin A (1) was isolated utilizing sequential column chromatography. Structural characterization was achieved employing various spectroscopic methods, including nuclear magnetic resonance (NMR), mass spectrometry (MS), and infrared spectroscopy (IR). RESULTS: L. pumila 70% EtOH extract showed significant toxicity in A549 lung cancer cells, with an IC50 value of 57.04 ± 10.28 µg/mL, as well as decreased expression of oncogenes and induced apoptosis. Compound 1, ardisiacrispin A, induced a 50% cell death response in A549 cells at a concentration of 11.94 ± 1.14 µg/mL. CONCLUSIONS: The present study successfully investigated ardisiacrispin A extracted from L. pumila leaves, employing a comprehensive spectroscopic approach encompassing NMR, IR, and MS analyses. The anti-lung cancer efficacy of ardisiacrispin A and L. pumila extract was successfully demonstrated for the first time, to the best of our knowledge.

12.
Cancer Cell ; 42(3): 358-377.e8, 2024 Mar 11.
Artículo en Inglés | MEDLINE | ID: mdl-38215747

RESUMEN

The evolutionary trajectory of glioblastoma (GBM) is a multifaceted biological process that extends beyond genetic alterations alone. Here, we perform an integrative proteogenomic analysis of 123 longitudinal glioblastoma pairs and identify a highly proliferative cellular state at diagnosis and replacement by activation of neuronal transition and synaptogenic pathways in recurrent tumors. Proteomic and phosphoproteomic analyses reveal that the molecular transition to neuronal state at recurrence is marked by post-translational activation of the wingless-related integration site (WNT)/ planar cell polarity (PCP) signaling pathway and BRAF protein kinase. Consistently, multi-omic analysis of patient-derived xenograft (PDX) models mirror similar patterns of evolutionary trajectory. Inhibition of B-raf proto-oncogene (BRAF) kinase impairs both neuronal transition and migration capability of recurrent tumor cells, phenotypic hallmarks of post-therapy progression. Combinatorial treatment of temozolomide (TMZ) with BRAF inhibitor, vemurafenib, significantly extends the survival of PDX models. This study provides comprehensive insights into the biological mechanisms of glioblastoma evolution and treatment resistance, highlighting promising therapeutic strategies for clinical intervention.


Asunto(s)
Neoplasias Encefálicas , Glioblastoma , Proteogenómica , Animales , Humanos , Glioblastoma/genética , Proteínas Proto-Oncogénicas B-raf , Proteómica , Línea Celular Tumoral , Recurrencia Local de Neoplasia , Modelos Animales de Enfermedad , Neoplasias Encefálicas/genética , Resistencia a Antineoplásicos , Ensayos Antitumor por Modelo de Xenoinjerto
13.
Arch Virol ; 169(2): 24, 2024 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-38206482

RESUMEN

The complete nucleotide sequence of a newly discovered virus infecting Quercus aliena Blume, tentatively named "quercus leafroll virus" (QLRV), was determined through high-throughput and Sanger sequencing. The sequence comprises 3,940 nucleotides, has five open reading frames, and has a typical pelarspovirus genome organization, with neither 3' polyadenylation nor a 5' cap. The proteins encoded by QLRV share 17.9 to 44.2% amino acid sequence identity with known pelarspovirus proteins. The highest amino acid sequence identity values for the RNA-dependent RNA polymerase (RdRp) and coat protein were 67.5% and 55.2%, respectively, which are below the current thresholds for pelarspovirus species demarcation. On the basis of these results, we propose classifying QLRV as a new member of the genus Pelarspovirus, family Tombusviridae.


Asunto(s)
Quercus , Tombusviridae , República de Corea , Secuencia de Aminoácidos , Nucleótidos
14.
Arch Virol ; 169(2): 28, 2024 Jan 12.
Artículo en Inglés | MEDLINE | ID: mdl-38214788

RESUMEN

A putative new polerovirus, named "chrysanthemum virus D" (ChVD), was detected in a Chrysanthemum morifolium plant in South Korea. The virus was identified by high-throughput sequencing and confirmed by reverse transcription polymerase chain reaction. The entire ChVD genome is composed of 5,963 nucleotides and contains seven open reading frames (ORF0-5 and ORF3a), which are arranged similarly to those of other poleroviruses. These ORFs encode the putative proteins P0-5 and P3a, respectively. Pairwise amino acid sequence comparisons showed that the ChVD P0-5 and P3a proteins have 30.45-75% sequence identity to the corresponding proteins of other members of the genus Polerovirus. Since one of the species demarcation criteria for the genus Polerovirus is > 10% difference in the amino acid sequence of any gene product, the sequence comparisons indicate that ChVD represents a new species in this genus. Phylogenetic analysis of the P1-P2 and P3 amino acid sequences further indicate that ChVD is a novel polerovirus.


Asunto(s)
Chrysanthemum , Luteoviridae , Secuencia de Bases , Filogenia , Chrysanthemum/genética , Genoma Viral , Enfermedades de las Plantas , ARN Viral/genética , Luteoviridae/genética , Sistemas de Lectura Abierta , Secuenciación de Nucleótidos de Alto Rendimiento
15.
Sensors (Basel) ; 23(23)2023 Nov 24.
Artículo en Inglés | MEDLINE | ID: mdl-38067766

RESUMEN

This study aimed to elucidate the role of tri-axial accelerometers in assessing therapeutic interventions, specifically constraint-induced movement therapy (CIMT), in children with unilateral cerebral palsy (UCP). The primary focus was understanding the correlation between the actigraphy metrics recorded during CIMT sessions and the resultant therapeutic outcomes. Children with UCP, aged between 4 and 12 years, participated in this study from July 2021 to December 2022. In conjunction with in-clinic sessions, during which participants wore tri-axial accelerometers on both limbs, we analyzed actigraphy data over three days of routine activities pre- and post-CIMT. While not all metrics derived from the accelerometers indicated significant improvements post-intervention, there was a clear trend towards a more balanced usage of both limbs, particularly evident in Axis 3, associated with vertical movement (p = 0.017). Additionally, a discernible correlation was observed between changes in the magnitude ratio derived from actigraphy data during CIMT (Δweek3-week1) and variations in traditional assessments pre- and post-intervention (ΔT0-T1), specifically the Assisting Hand Assessment grasp and release. Using tri-axial accelerometers has helped clarify the potential impacts of CIMT on children with UCP. The preliminary results suggest a possible link between actigraphy metrics taken during CIMT and the subsequent therapeutic outcomes determined by standardized tests.


Asunto(s)
Parálisis Cerebral , Niño , Humanos , Preescolar , Parálisis Cerebral/terapia , Resultado del Tratamiento , Movimiento , Extremidad Superior , Acelerometría
16.
Plant Dis ; 2023 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-38054925

RESUMEN

The common bean (Phaseolus vulgaris; family: Fabaceae) is an economically and nutritionally important food crop worldwide (Ganesan et al. 2017). In 2021, several plants collected from different provinces in South Korea had symptoms of viral infections (e.g., mild yellow-greenish speckling, stunting, crinkling, and deformed leaves). To identify the causal pathogens, total RNA was isolated from pooled leaf tissues from all samples (n = 29) for paired-end high-throughput sequencing (HTS). The cDNA library was constructed after eliminating ribosomal RNA using the TruSeq RNA Sample Prep Kit and then sequenced using the Illumina NovaSeq 6000 platform (Macrogen, Korea). The 297,868,156 paired-end clean reads (150 nt) were de novo assembled using Trinity with default parameters. BLASTx was used for the contig analysis, which revealed the pooled samples were infected with several plant viruses (e.g., turnip mosaic virus, zucchini yellow mosaic virus, cucumber mosaic virus, lily mottle virus). Notably, the assembled contigs included a single viral contig (8,472 nt) comprising the nearly complete KLV genome (HTS mean coverage: 39.46%). Kalanchoe latent virus (KLV; genus: Carlavirus; family: Betaflexiviridae) has been detected in Kalanchoë blossfeldiana (Hearon 1982), Chenopodium quinoa (Dinesen et al. 2009), and Graptopetalum paraguayense (Sorrentino et al. 2017). The sequence was most similar (96.28% nucleotide identity; 99% query coverage) to KLV isolate DSMZ PV-0290 (GenBank: OP525283) from Denmark. The contig sequence was validated via reverse transcription-polymerase chain reaction (RT-PCR) using total RNA extracted from the 29 individually stored samples and nine primer sets specific for the KLV contig. All nine contig-specific overlapping fragments were amplified from only a P. vulgaris plant with mild yellowing mosaic symptoms collected on July 6, 2021, in Jeongseon County, South Korea. Additionally, 5' and 3' rapid amplification of cDNA ends (RACE)-specific primers were designed for the KLV contig sequence to determine the terminal ends of the genome of the South Korean KLV isolate using the 5'/3' RACE System (Invitrogen, Carlsbad, CA, USA). All of the amplified and overlapping fragments were cloned into the RBC T&A Cloning Vector (RBC Bioscience, Taipei, Taiwan) and sequenced using the Sanger method. The obtained full-length genomic sequence of the KLV isolate (KLV-SK22) was 8,517 nt long and was deposited in GenBank OQ718816. According to the BLASTn analysis, KLV-SK22 was highly similar (96.30% sequence identity; 100% query coverage) to the DSMZ PV-0290 isolate. Phylogenetic trees constructed on the basis of coat protein and RNA-dependent RNA polymerase amino acid sequences revealed that KLV-SK22 is closely related to the DSMZ PV-0290 and PV-0290B isolates from Denmark, respectively. At the genome and gene levels, the individual sequence identities between the carlaviruses and other KLV isolates were 96.29% to 100% (Adams et al. 2004). Additionally, an RT-PCR analysis using detection primers specific for KLV-SK22 did not detect KLV in 15 samples (P. vulgaris = 3, Glycine max = 8, Pueraria montana = 2, Trifolium repens = 1, and Vigna angularis = 1) randomly collected from different regions in South Korea. Based on these results, KLV infection may not be widespread at this time in South Korea. To the best of our knowledge, this is the first report of KLV in P. vulgaris in South Korea or elsewhere. Our findings will aid future research on the epidemiology and long-term management of KLV-related diseases.

17.
Front Pediatr ; 11: 1204360, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37900673

RESUMEN

Herein, we describe the case of a 43-month-old girl who presented with clinical manifestations of dyskinetic cerebral palsy (CP), classified as the Gross Motor Function Classification System (GMFCS) V. The patient had no family history of neurological or perinatal disorders. Despite early rehabilitation, serial assessments using the Gross Motor Function Measure (GMFM) showed no significant improvements in gross motor function. Brain magnetic resonance imaging showed nonspecific findings that could not account for developmental delay or dystonia. Whole-genome sequencing identified a heterozygous NM_002074.5(GNB1):c.239T>C (p.Ile80Thr) mutation in guanine nucleotide-binding protein beta 1 (GNB1) gene. Considering this case and previous studies, genetic testing for the etiology of dyskinetic CP is recommended for children without relevant or with nonspecific brain lesions.

18.
Mater Horiz ; 10(10): 4488-4500, 2023 Oct 02.
Artículo en Inglés | MEDLINE | ID: mdl-37534735

RESUMEN

Al2O3 deposited via atomic layer deposition (ALD) has been used as an insulating and barrier film for thin-film transistors, organic electronics, and microelectromechanical systems. However, ALD Al2O3 films are easily degraded by hydrolysis under harsh hygrothermal conditions, owing to their poor environmental stability. In this study, the mechanical properties and water-vapor transmission rate (WVTR) of environmentally degraded Al2O3 films were investigated by varying the temperature and relative humidity (RH). The hygrothermal environment led to surface and pinhole-concentrated degradation based on aluminum hydroxide, which caused an increased WVTR and reduced elongation of the films in harsher environments. In particular, the elongation of the degraded Al2O3 films was reduced to 0.3%, which is one-third of that of as-deposited Al2O3, and their WVTR increased on the order of 10-1 g m-2 day-1, which is more than 1000 times that of as-deposited Al2O3. Therefore, we introduced a functional silane-based inorganic-organic hybrid layer (silamer) onto the Al2O3 films to improve their environmental stability. The silamer helped preserve the characteristics of Al2O3 films by forming a strong and continuous aluminate phase of Al-O-Si at their interface in hygrothermal environments. Furthermore, the silamer-capped Al2O3 was shown to be an environmentally stable encapsulation for application in wearable organic devices.

19.
Ann Rehabil Med ; 47(3): 147-161, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37403312

RESUMEN

The survival rate of children admitted in the neonatal intensive care unit (NICU) after birth is on the increase; hence, proper evaluation and care of their neurodevelopment has become an important issue. Neurodevelopmental assessments of individual domains regarding motor, language, cognition, and sensory perception are crucial in planning prompt interventions for neonates requiring immediate support and rehabilitation treatment. These assessments are essential for identifying areas of weakness and designing targeted interventions to improve future functional outcomes and the quality of lives for both the infants and their families. However, initial stratification of risk to select those who are in danger of neurodevelopmental disorders is also important in terms of cost-effectiveness. Efficient and robust functional evaluations to recognize early signs of developmental disorders will help NICU graduates receive interventions and enhance functional capabilities if needed. Several age-dependent, domain-specific neurodevelopmental assessment tools are available; therefore, this review summarizes the characteristics of these tools and aims to develop multidimensional, standardized, and regular follow-up plans for NICU graduates in Korea.

20.
Arch Virol ; 168(7): 197, 2023 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-37392254

RESUMEN

A novel umbra-like virus was identified in arborvitae in South Korea using RNA sequencing (RNA-seq). The virus identified was tentatively named "arborvitae umbra-like virus" (AULV) and contained a 4,300-nucleotide genome organized into four non-structural open reading frames (ORFs). Cloning and Sanger sequencing were used to confirm the viral contig sequence and determine the size of the genome. Genome analysis indicated that ORF2 encodes an RNA-dependent RNA polymerase that is probably expressed through ribosomal frameshifting. ORF3 encodes a putative long-distance movement protein, while the functions of ORFs 1 and 4 are unknown. The virus lacks a coat protein gene. The genome of AULV shares 27.3%-48.4% nucleotide sequence identity with closely related umbraviruses. Phylogenetic analysis based on the complete genome sequences and amino acid sequences of the RNA-dependent RNA polymerase revealed that AULV forms a monophyletic lineage with Guiyang paspalum paspaloides tombus-like virus (GPpTV1). We suggest that AULV is a novel umbra-like virus belonging to the family Tombusviridae.


Asunto(s)
Thuja , Tombusviridae , Umbridae , Animales , Filogenia , China , República de Corea , ARN Polimerasa Dependiente del ARN/genética
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