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1.
Medicine (Baltimore) ; 103(23): e38446, 2024 Jun 07.
Article in English | MEDLINE | ID: mdl-38847683

ABSTRACT

BACKGROUND: Stair-climbing (SC) is an essential daily life skill, and stair-climbing exercise (SCE) serves as a valuable method for promoting physical activity in older adults. This study aimed to compare the impact of SCEs with heel contact (HC) and heel off (HO) during SC on functional mobility and trunk muscle (TM) activation amplitudes in community-dwelling older adults. METHODS: In the pilot randomized controlled trial, participants were randomly allocated to either the HC group (n = 17; mean age 75.9 ± 6.3 years) or the HO group (n = 17; mean age 76.5 ± 4.6 years). The HC participants performed SCE with the heel of the ankle in contact with the ground, while the HO participants performed SCE with the heel of the ankle off the ground during SC. Both groups participated in progressive SCE for one hour per day, three days per week, over four consecutive weeks (totaling 12 sessions) at the community center. We measured timed stair-climbing (TSC), timed up and go (TUG), and electromyography (EMG) amplitudes of the TMs including rectus abdominis (RA), external oblique (EO), transverse abdominus and internal oblique abdominals (TrA-IO), and erector spinae (ES) during SC before and after the intervention. RESULTS: Both groups showed a significant improvement in TSC and TUG after the intervention (P < .01, respectively), with no significant difference between the groups. There was no significant difference in the EMG activity of the TMs between the groups after the intervention. The amplitude of TMs significantly decreased after the intervention in both groups (P < .01, respectively). CONCLUSION: Both SCE methods could improve balance and SC ability in older adults while reducing the recruitment of TMs during SC. Both SCE strategies are effective in improving functional mobility and promoting appropriate posture control during SC in older adults.


Subject(s)
Electromyography , Independent Living , Stair Climbing , Humans , Aged , Male , Pilot Projects , Female , Stair Climbing/physiology , Aged, 80 and over , Torso/physiology , Muscle, Skeletal/physiology
2.
J Cancer Res Clin Oncol ; 150(6): 298, 2024 Jun 08.
Article in English | MEDLINE | ID: mdl-38850403

ABSTRACT

OBJECTIVE: The International Union for Cancer Control/American Joint Committee on Cancer (UICC/AJCC) rT staging is not clinically practical for recurrent nasopharyngeal carcinoma (rNPC). The aim of this study was to establish a new rT staging to guide the treatment of rNPC. METHODS: We conducted a retrospective analysis of 175 patients diagnosed with rNPC between January 2012 and December 2020, using ROC curve analysis to evaluate its effectiveness. RESULTS: We analyzed the overall survival (OS) and progression-free survival(PFS) of patients diagnosed with rNPC according to the 8th (UICC/AJCC) rT staging, and found that the overall survival of rT1 and rT2 patients (OS; 29.98% vs. 27.09%, p = 0.8059) and progression-free survival (PFS; 28.48% vs. 26.12%, p = 0.4045) had no significant difference. In rT1 and rT2 patients of this study, overall survival(OS; 30.44% vs. 24.91%, p = 0.0229) and progression-free survival(PFS 29.12% vs. 24.03%, p = 0.0459) had a significant difference. Smoking, family history, and time interval of initial recurrence were independent prognostic factors for OS and PFS. CONCLUSION: The new rT staging of this study has a better predictive value for survival of rNPC patients than the 8th (UICC/AJCC) rT staging.


Subject(s)
Nasopharyngeal Carcinoma , Nasopharyngeal Neoplasms , Neoplasm Recurrence, Local , Neoplasm Staging , Humans , Male , Female , Nasopharyngeal Carcinoma/pathology , Nasopharyngeal Carcinoma/mortality , Nasopharyngeal Carcinoma/therapy , Middle Aged , Retrospective Studies , Neoplasm Recurrence, Local/pathology , Nasopharyngeal Neoplasms/pathology , Nasopharyngeal Neoplasms/mortality , Nasopharyngeal Neoplasms/therapy , Adult , Aged , Young Adult , Prognosis , Survival Rate
3.
J Affect Disord ; 361: 53-58, 2024 Sep 15.
Article in English | MEDLINE | ID: mdl-38844169

ABSTRACT

OBJECTIVE: To examine the association between cerebral artery stenosis and depressive symptoms in elderly patients. METHODS: The study participants were 365 patients aged ≥65 years who visited the psychiatric outpatient clinic, Samsung Medical Center between January 1, 2000, and December 31, 2019, and were diagnosed with depressive disorder. They had brain imaging tests including magnetic resonance angiography (MRA), psychological evaluations including the 15-item Geriatric Depression Scale (GDS-15), and lab tests. Individuals' cerebral artery stenosis was identified and the association with significant depressive symptoms was examined. RESULTS: Of the 365 subjects, 108 had at least one location of cerebral artery stenosis (29.6 %). The mean score of GDS-15 in the stenosis group was 8.1 (SD, 3.8), higher than the mean GDS-15 score of 6.5 (SD, 4.0) for the group without stenosis (p < 0.001). Compared to no middle cerebral artery (MCA) stenosis, having MCA stenosis was associated with significant depressive symptoms (p = 0.005). Compared to no posterior cerebral artery (PCA) stenosis, having left PCA stenosis was associated with significant depressive symptoms (p = 0.022). In the multivariable linear regression analysis, only bilateral MCA stenosis had a positive association with the score of GDS-15 (p = 0.013). CONCLUSION: Bilateral MCA stenosis and left PCA stenosis are associated with significant depressive symptoms among elderly patients, with bilateral MCA stenosis positively associated with the severity of depression.


Subject(s)
Depression , Magnetic Resonance Angiography , Humans , Aged , Male , Female , Depression/epidemiology , Constriction, Pathologic , Aged, 80 and over , Cerebral Arterial Diseases/diagnostic imaging , Cerebral Arterial Diseases/epidemiology , Cerebral Arterial Diseases/complications , Depressive Disorder/epidemiology , Middle Cerebral Artery/diagnostic imaging , Posterior Cerebral Artery/diagnostic imaging , Psychiatric Status Rating Scales
4.
Comput Psychiatr ; 8(1): 46-69, 2024.
Article in English | MEDLINE | ID: mdl-38774430

ABSTRACT

The Probabilistic Reward Task (PRT) is widely used to investigate the impact of Major Depressive Disorder (MDD) on reinforcement learning (RL), and recent studies have used it to provide insight into decision-making mechanisms affected by MDD. The current project used PRT data from unmedicated, treatment-seeking adults with MDD to extend these efforts by: (1) providing a more detailed analysis of standard PRT metrics-response bias and discriminability-to better understand how the task is performed; (2) analyzing the data with two computational models and providing psychometric analyses of both; and (3) determining whether response bias, discriminability, or model parameters predicted responses to treatment with placebo or the atypical antidepressant bupropion. Analysis of standard metrics replicated recent work by demonstrating a dependency between response bias and response time (RT), and by showing that reward totals in the PRT are governed by discriminability. Behavior was well-captured by the Hierarchical Drift Diffusion Model (HDDM), which models decision-making processes; the HDDM showed excellent internal consistency and acceptable retest reliability. A separate "belief" model reproduced the evolution of response bias over time better than the HDDM, but its psychometric properties were weaker. Finally, the predictive utility of the PRT was limited by small samples; nevertheless, depressed adults who responded to bupropion showed larger pre-treatment starting point biases in the HDDM than non-responders, indicating greater sensitivity to the PRT's asymmetric reinforcement contingencies. Together, these findings enhance our understanding of reward and decision-making mechanisms that are implicated in MDD and probed by the PRT.

5.
BMC Oral Health ; 24(1): 477, 2024 Apr 20.
Article in English | MEDLINE | ID: mdl-38643116

ABSTRACT

BACKGROUND: This study examines the oral health benefits of heat-killed Lacticaseibacillus paracasei GMNL-143, particularly its potential in oral microbiota alterations and gingivitis improvement. METHODS: We assessed GMNL-143's in vitro interactions with oral pathogens and its ability to prevent pathogen adherence to gingival cells. A randomized, double-blind, crossover clinical trial was performed on gingivitis patients using GMNL-143 toothpaste or placebo for four weeks, followed by a crossover after a washout. RESULTS: GMNL-143 showed coaggregation with oral pathogens in vitro, linked to its surface layer protein. In patients, GMNL-143 toothpaste lowered the gingival index and reduced Streptococcus mutans in crevicular fluid. A positive relationship was found between Aggregatibacter actinomycetemcomitans and gingival index changes, and a negative one between Campylobacter and gingival index changes in plaque. CONCLUSION: GMNL-143 toothpaste may shift oral bacterial composition towards a healthier state, suggesting its potential in managing mild to moderate gingivitis. TRIAL REGISTRATION: ID NCT04190485 ( https://clinicaltrials.gov/ ); 09/12/2019, retrospective registration.


Subject(s)
Gingivitis , Lacticaseibacillus paracasei , Microbiota , Adult , Humans , Dental Plaque Index , Double-Blind Method , Gingivitis/drug therapy , Retrospective Studies , Toothpastes/therapeutic use , Cross-Over Studies
6.
ISA Trans ; 148: 477-489, 2024 May.
Article in English | MEDLINE | ID: mdl-38548504

ABSTRACT

This paper aims to tackle the issue of carrying variable loads and disturbances in an impedance-based dual-arm robot. When robots are engaged in transportation tasks, deviations in trajectory due to changing loads and the risk of objects falling under external disturbances or unstable gripping can lead to mission failure. To address these issues, a novel Dual-Arm Adaptive Cooperative Control Framework (ACCF) is proposed. The ACCF is designed to ensure adherence to trajectory constraints in the presence of load variations and to actively respond to sliding or overturning caused by disturbances. The framework is user-friendly and robust, featuring a two-loop arrangement. The inner-loop incorporates an adaptive force control law to robustly control internal forces for dual-arm gripping. The outer-loop utilizes centralized impedance control, incorporating a fast gravity estimation scheme to compensate for trajectory deviations and an active anti-overturning scheme to resist sliding or overturning of objects during disturbances. Experimental evaluations and comparisons are conducted. The results successfully demonstrate the ACCF's adaptability under variable loads and external disturbances, providing a solution for practical dual-arm applications, such as transportation, in future scenarios.

7.
J Dent Sci ; 19(1): 550-559, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38303886

ABSTRACT

Background/Purpose: The preciseness of detecting periodontal bone loss is examiners dependent, and this leads to low reliability. The need for automated assistance systems on dental radiographic images has been increased. To the best of our knowledge, no studies have quantitatively and automatically staged periodontitis using dental periapical radiographs. The purpose of this study was to evaluate periodontal bone loss and periodontitis stage on dental periapical radiographs using deep convolutional neural networks (CNNs). Materials and methods: 336 periapical radiographic images (teeth: 390) between January 2017 and December 2019 were collected and de-identified. All periapical radiographic image datasets were divided into training dataset (n = 82, teeth: 123) and test dataset (n = 336, teeth: 390). For creating an optimal deep CNN algorithm model, the training datasets were directly used for the segmentation and individual tooth detection. To evaluate the diagnostic power, we calculated the degree of alveolar bone loss deviation between our proposed method and ground truth, the Pearson correlation coefficients (PCC), and the diagnostic accuracy of the proposed method in the test datasets. Results: The periodontal bone loss degree deviation between our proposed method and the ground truth drawn by the three periodontists was 6.5 %. In addition, the overall PCC value of our proposed system and the periodontists' diagnoses was 0.828 (P < 0.01). The total diagnostic accuracy of our proposed method was 72.8 %. The diagnostic accuracy was highest for stage III (97.0 %). Conclusion: This tool helps with diagnosis and prevents omission, and this may be especially helpful for inexperienced younger doctors and doctors in underdeveloped countries. It could also dramatically reduce the workload of clinicians and timely access to periodontist care for people requiring advanced periodontal treatment.

8.
Chemistry ; 30(5): e202302916, 2024 Jan 22.
Article in English | MEDLINE | ID: mdl-37902438

ABSTRACT

Blood continually contributes to the maintenance of homeostasis of the body and contains information regarding the health state of an individual. However, current hematological analyses predominantly rely on a limited number of CD markers and morphological analysis. In this work, differentially sensitive fluorescent compounds based on TCF scaffolds are introduced that are designed for fluorescent phenotyping of blood. Depending on their structures, TCF compounds displayed varied responses to reactive oxygen species, biothiols, redox-related biomolecules, and hemoglobin, which are the primary influential factors within blood. Contrary to conventional CD marker-based analysis, this unbiased fluorescent phenotyping method produces diverse fingerprints of the health state. Precise discrimination of blood samples from 37 mice was demonstrated based on their developmental stages, ranging from 10 to 19 weeks of age. Additionally, this fluorescent phenotyping method enabled the differentiation between drugs with distinct targets, serving as a simple yet potent tool for pharmacological analysis to understand the mode of action of various drugs.


Subject(s)
Aging , Fluorescent Dyes , Mice , Animals , Fluorescent Dyes/chemistry , Reactive Oxygen Species/analysis , Oxidation-Reduction , Blood Cells/chemistry
9.
J Phys Chem B ; 128(1): 150-162, 2024 01 11.
Article in English | MEDLINE | ID: mdl-38147592

ABSTRACT

The SARS-CoV-2 ORF7b protein has drawn attention for its potential role in viral pathogenesis, but its structural details and lateral membrane associations remain elusive. In this study, we conducted multiscale molecular dynamics simulations to provide detailed molecular insights of the protein's dimerization, which is crucial for unraveling its structural model of protein-protein interface important to regulating cellular immune response. To gain a deeper understanding of homodimer configurations, we employed a machine learning algorithm for structural-based clustering. Clusters were categorized into three distinct groups for both parallel and antiparallel orientations, highlighting the influence of the initial monomer conformation on dimer configurations. Analysis of hydrogen bonding and π-π and π-cation stacking interactions within clusters revealed variations in interactions between clusters. In parallel dimers, weak stacking interactions in the transmembrane (TM) region were observed. In contrast, antiparallel dimers exhibited strong hydrogen bonding and stacking interactions contributing to tight dimeric packing, both within and outside the TM domain. Overall, our study provides a comprehensive view of the structural dynamics of ORF7b homodimerization in both parallel and antiparallel orientations. These findings shed light on the molecular interactions involved in ORF7b dimerization, which are crucial for understanding its potential roles in SARS-CoV-2 pathogenesis. This knowledge could inform future research and therapeutic strategies targeting this viral protein.


Subject(s)
COVID-19 , Molecular Dynamics Simulation , Humans , Dimerization , Protein Domains , SARS-CoV-2
10.
iScience ; 26(11): 108252, 2023 Nov 17.
Article in English | MEDLINE | ID: mdl-37965150

ABSTRACT

Mitogenomics has improved our understanding of medusozoan phylogeny. However, sequenced medusozoan mitogenomes remain scarce, and Medusozoa phylogeny studies often analyze mitogenomic sequences without incorporating mitogenome rearrangements. To better understand medusozoan evolution, we analyzed Medusozoa mitogenome phylogeny by sequencing and assembling eight mitogenomes from three classes (Cubozoa, Hydrozoa, and Scyphozoa). We reconstructed the mitogenome phylogeny using these mitogenomes and 84 other existing cnidarian mitogenomes to study mitochondrial gene rearrangements. All reconstructed mitogenomes had 13 mitochondrial protein-coding genes and two ribosomal genes typical for Medusozoa. Non-cubozoan mitogenomes were all linear and had typical gene orders, while arrangement of genes in the fragmented Cubozoa (Morbakka sp.) mitogenome differed from other Cubozoa mitogenomes. Gene order comparisons and ancestral state reconstruction suggest minimal rearrangements within medusozoan classes except for Hydrozoa. Our findings support a staurozoan ancestral medusozoan gene order, expand the pool of available medusozoan mitogenomes, and enhance our understanding of medusozoan phylogenetic relationships.

11.
Materials (Basel) ; 16(11)2023 May 25.
Article in English | MEDLINE | ID: mdl-37297089

ABSTRACT

Among the various welding techniques used to bond thermoplastic composites, induction welding stands out as a fast, clean, and contact-free process that shortens the welding time and prevents the weight increase of mechanical fastening, such as rivets and bolts. In this study, we manufactured polyetheretherketone (PEEK)-resin-based thermoplastic carbon fiber (CF) composite materials at different automated fiber placement laser powers (3569, 4576, and 5034 W) and investigated their bonding and mechanical characteristics after induction welding. The quality of the composite was evaluating using various techniques, including optical microscopy, C-scanning, and mechanical strength measurements, and a thermal imaging camera was used to monitor the surface temperature of the specimen during its processing. The results revealed that the preparation conditions of the polymer/carbon fiber composites, such as the laser power and surface temperature, significantly affect the quality and performance of the induction-welding-bonded composites. A lower laser power during preparation resulted in weaker bonding between components of the composite and yielded samples with a lower shear stress.

12.
Biochim Biophys Acta Biomembr ; 1865(6): 184174, 2023 08.
Article in English | MEDLINE | ID: mdl-37211321

ABSTRACT

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of COVID, replicates at intracellular membranes. Bone marrow stromal antigen 2 (BST-2; tetherin) is an antiviral response protein that inhibits transport of viral particles after budding within infected cells. RNA viruses such as SARS-CoV-2 use various strategies to disable BST-2, including use of transmembrane 'accessory' proteins that interfere with BST-2 oligomerization. ORF7a is a small, transmembrane protein present in SARS-CoV-2 shown previously to alter BST-2 glycosylation and function. In this study, we investigated the structural basis for BST-2 ORF7a interactions, with a particular focus on transmembrane and juxtamembrane interactions. Our results indicate that transmembrane domains play an important role in BST-2 ORF7a interactions and mutations to the transmembrane domain of BST-2 can alter these interactions, particularly single-nucleotide polymorphisms in BST-2 that result in mutations such as I28S. Using molecular dynamics simulations, we identified specific interfaces and interactions between BST-2 and ORF7a to develop a structural basis for the transmembrane interactions. Differences in glycosylation are observed for BST-2 transmembrane mutants interacting with ORF7a, consistent with the idea that transmembrane domains play a key role in their heterooligomerization. Overall, our results indicate that ORF7a transmembrane domain interactions play a key role along with extracellular and juxtamembrane domains in modulating BST-2 function.


Subject(s)
COVID-19 , SARS-CoV-2 , Humans , Cell Membrane/genetics , Cell Membrane/metabolism , COVID-19/metabolism , Membrane Proteins/metabolism , SARS-CoV-2/genetics , Viral Regulatory and Accessory Proteins/metabolism
13.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-995290

ABSTRACT

Objective:To investigate the clinical features, treatment and follow-up of children with early-onset antinuclear antibody (ANA)-positive juvenile idiopathic arthritis (JIA).Methods:Eighty-six oligoarticular JIA patients with early-onset arthritis (≤6 years old) admitted to the Children′s Hospital Affiliated to Capital Institute of Pediatrics from January 2017 to December 2019 were included in this study. According to ANA titer, these patients were divided into two groups: ANA-positive group (44 cases) and ANA-negative group (42 cases). Clinical data including demographic data, clinical features, laboratory testing results, treatment and follow-up data were statistically analyzed.Results:The ratio of male to female was 7∶37 in the ANA-positive group and 15∶27 in the ANA-negative group and there was significant difference between the two groups ( P=0.035). The proportions of patients with increased C-reactive protein and erythrocyte sedimentation rate were higher in the ANA-positive group than in the ANA-negative group [18.18% (8/44) vs 16.67% (7/42) and 29.55% (13/44) vs 19.05% (8/42), both P>0.05]. The most commonly involved joints in the ANA-positive group were knee (95.45%, 42/44), ankle (20.45%, 9/44) and wrist (18.18%, 8/44), and unilateral asymmetric joint involvement accounted for 81.8% (36/44). In the ANA-negative group, the involved joints were knee (85.71%, 36/42), ankle (14.29%, 6/42), wrist (14.29%, 6/42) and hip (11.90%, 5/42), and 27 out of the 42 cases (64.29%) had unilateral asymmetric joint involvement. There was no significant difference in the above indexes between the two groups (all P>0.05). There were seven cases (15.91%) with uveitis in the ANA-positive group and two cases (4.76%) in the ANA-negative group, and the difference between the two groups was significant ( P=0.045). Before treatment, the ANA-positive group had a significantly higher disease activity score (JADAS27) than the ANA-negative group (14.43±2.87 vs 12.09±3.32, P=0.002). After treatment, the JADAS27 score in both groups decreased (both P<0.05). After six months of treatment, the two groups had similar clinical remission rates [70.45% (31/44) vs 76.19% (32/42), P>0.05]. Conclusions:Early-onset ANA-positive JIA was more common in female children, and asymmetric knee joint involvement was the most common clinical manifestation. The incidence of ophthalmic complications was high, and ophthalmological examination should be performed more frequently during follow-up. The prognosis of early-onset ANA-positive JIA was good with early treatment. Positive ANA was not a risk factor for poor prognosis.

14.
Article in English | WPRIM (Western Pacific) | ID: wpr-977371

ABSTRACT

Advanced heart failure (HF) is defined as the persistence of severe symptoms despite the use of optimized medical, surgical, and device therapies. These patients require timely advanced treatments, such as heart transplantation or long-term mechanical circulatory support (MCS). Inotropic agents are often used to reduce congestion and increase cardiac output, while renal replacement therapy may be beneficial if necessary. Cardiac resynchronization therapy has clear benefits in patients with HF with reduced ejection fraction, particularly with left bundle branch block (QRS duration > 130 ms). The role of implantable cardioverter-defibrillators in advanced HF patients requires further investigation considering the introduction of novel HF medications. In selected patients with significant secondary mitral regurgitation, transcatheter edge-to-edge repair can help delay heart transplantation or long-term MCS. In later stages, the appropriateness of heart transplantation should be evaluated, and the use of short- or long-term MCS may be considered. A multidisciplinary HF management program is crucial for patients with advanced HF. Recent treatment advances, including drugs, devices, and MCS, have broadened the options available to patients with advanced HF and this trend is expected to continue.

15.
Korean Circulation Journal ; : 195-216, 2023.
Article in English | WPRIM (Western Pacific) | ID: wpr-977152

ABSTRACT

The Korean Society of Heart Failure guidelines aim to provide physicians with evidence-based recommendations for diagnosing and managing patients with heart failure (HF). In Korea, the prevalence of HF has been rapidly increasing in the last 10 years. HF has recently been classified into HF with reduced ejection fraction (EF), HF with mildly reduced EF, and HF with preserved EF (HFpEF). Moreover, the availability of newer therapeutic agents has led to an increased emphasis on the appropriate diagnosis of HFpEF. Accordingly, this part of the guidelines will mainly cover the definition, epidemiology, and diagnosis of HF.

16.
Korean Circulation Journal ; : 217-238, 2023.
Article in English | WPRIM (Western Pacific) | ID: wpr-977151

ABSTRACT

The Korean Society of Heart Failure (KSHF) guidelines aim to provide physicians with evidencebased recommendations for the management of patients with heart failure (HF). After the first introduction of the KSHF guidelines in 2016, newer therapies for HF with reduced ejection fraction, HF with mildly reduced ejection fraction, and HF with preserved ejection fraction have since emerged. The current version has been updated based on international guidelines and research data on Korean patients with HF. Herein, we present Part II of these guidelines, which comprises treatment strategies to improve the outcomes of patients with HF.

17.
Article in English | WPRIM (Western Pacific) | ID: wpr-1002704

ABSTRACT

Purpose@#This study aimed to identify the etiology and risk factors of community-acquired pneumonia (CAP) requiring hospitalization in Korean children during the coronavirus disease 2019 (COVID-19) pandemic. @*Methods@#Clinical information of children admitted with CAP to Seoul National University Children’s Hospital (SNUCH) between January 1, 2021, and February 28, 2022, was retrospectively collected and analyzed. In addition, the etiologic diagnosis and demographic data of children with CAP who were discharged at the other seven hospitals between January and February 2022 were collected. Pneumonia was diagnosed using strict criteria comprising clinical symptoms, physical examination findings, and chest radiographic findings. @*Results@#Among 91 children hospitalized with CAP at SNUCH during the 14-month period, 68.4% were aged <5 years and 79.1% had underlying diseases. Among the 95 CAP cases, respiratory assistance was required in 70.5%, and the use of a ventilator was required in 20.0%.A total of five patients expired, all of whom were either immunocompromised or had underlying neurological diseases. Neurological diseases and immunosuppression were significantly correlated with respiratory assistance (P=0.003) and death (P=0.014). A total of 55% of the detected respiratory pathogens were viruses, the most common of which was rhinovirus at 35.9%. Among the 169 children hospitalized for CAP at the eight institutions, ≥1 respiratory virus was detected in 92.3%, among which respiratory syncytial virus (79.8%) was the most prevalent. @*Conclusions@#Even during the COVID-19 pandemic, Korean children were hospitalized with CAP caused by seasonal respiratory viral pathogens. Although atypical and pyogenic bacteria were not detected, continuous clinical monitoring and further prospective studies should be conducted.

18.
Chinese Pharmacological Bulletin ; (12): 2295-2304, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-1013670

ABSTRACT

Aim To explore the effect of squalene ep-oxidase ( SQLE) in cervical squamous cell carcinoma and the molecular mechanism. Methods Firstly, the gene expression profiling interactive analysis (GEPIA) database was used to analyze the mRNA expression of SQLE in cervical squamous cell carcinoma and normal cervical tissues, and the human protein atlas ( HPA) database was used to obtain the expression of SQLE protein in cervical squamous cell carcinoma and normal cervical tissues. We researched the correlation between SQLE gene and the clinicopathological characteristics of cervical squamous cell carcinoma through UALCAN database. Then GEPIA database was utilized to evaluate the overall survival (OS) and disease free survival (DFS) of cervical squamous cell carcinoma patients with high expression of SQLE mRNA. Finally, Siha cells were taken as the research object, and the effects of SQLE gene on proliferation, apoptosis, migration and invasion of Siha cells were observed by using small interfering RNA ( siRNA) to inhibit the expression of SQLE gene and transfecting recombinant plasmid to promote the expression of SQLE gene. The mRNA expression of SQLE was assessed by qPT-PCR. Bax, Bcl-2, Vimentin, E-cadherin, PI3K, Akt, p-PI3K and p-Akt protein expression levels were examined by Western blot. Results The mRNA expression and protein expression of SQLE in cervical squamous cell carcinoma was higher than that in normal tissues (P < 0. 05 ), and the OS of patients with high expression of SQLE mRNA was significantly shortened in cervical squamous cell carcinoma ( P < 0. 05 ). The expression of SQLE in stage IV of cervical squamous cell carcinoma was significantly higher than that in stage I, II and III (P < 0. 01). And the expression of SQLE in lymph node metastasis Nl group was markedly higher than that in NO group ( P < 0. 01 ). Cell experiments showed that interference with SQLE could significantly inhibit the proliferation, migration and invasion of Siha cells, and promote their apoptosis (P < 0. 01 ). The trend was opposite when SQLE was overexpressed. SQLE knockdown decreased the protein expression levels of Bcl-2, Vimentin, p-PI3K and p-Akt, increased the protein expression levels of Bax and E-cadherin, and the ratio of Bcl-2/Bax decreased significantly (P < 0. 05, P < 0. 01 ) . The trend was opposite when SQLE was overexpressed. Conclusions SQLE is highly expressed in human cervical squamous cell carcinoma. SQLE may induce Siha cell proliferation, migration, invasion, and inhibit their apoptosis by regulating PDK/Akt signaling pathway.

19.
Article in English | WPRIM (Western Pacific) | ID: wpr-966776

ABSTRACT

Diabetes mellitus is a major risk factor for the development of heart failure. Furthermore, the prognosis of heart failure is worse in patients with diabetes mellitus than in those without it. Therefore, early diagnosis and proper management of heart failure in patients with diabetes mellitus are important. This review discusses the current criteria for diagnosis and screening tools for heart failure and the currently recommended pharmacological therapies for heart failure. We also highlight the effects of anti-diabetic medications on heart failure.

20.
Chinese Journal of Pediatrics ; (12): 533-537, 2023.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-985904

ABSTRACT

Objective: To explore the clinical features and prognosis of children with histiocytic necrotizing lymphadenitis (HNL). Methods: The clinical data of 118 children with HNL diagnosed and treated in the Department of Rheumatology and Immunology of Children's Hospital, Capital Institute of Pediatrics from January 2014 to December 2021 were retrospectively analyzed. The clinical symptoms, laboratory examination, imaging examination, pathological findings, treatment and follow-up were analyzed. Results: Among the 118 patients, 69 were males and 49 were females. The age of onset was 10.0 (8.0, 12.0) years, ranging from 1.5 to 16.0 years. All the children had fever lymph node enlargement, blood system involvement in 74 cases (62.7%), skin injury in 39 cases (33.1%). The main manifestations of laboratory examination were increased erythrocyte sedimentation rate in 90 cases (76.3%), decreased hemoglobin in 58 cases (49.2%), decreased white blood cells in 54 cases (45.8%) and positive antinuclear antibody in 35 cases (29.7%). Ninety-seven cases (82.2%) underwent B-mode ultrasound of lymph nodes, showing nodular lesions with low echo in the neck; 22 cases (18.6%) underwent cervical X-ray and (or) CT; 7 cases (5.9%) underwent cervical magnetic resonance imaging. Lymph node biopsy was performed in all 118 cases, and the pathological results did not support malignant diseases such as lymphoma or Epstein-Barr virus infection, suggesting HNL. Fifty-seven cases (48.3%) recovered without treatment, 61 cases (51.7%) received oral steroid therapy, and 4 cases (3.4%) received indomethacin as anal stopper. The 118 cases were followed up for 4 (2, 6) years, ranging from 1 to 7 years, 87 cases (73.7%) had one onset and did not develop into other rheumatological diseases, and 24 cases (20.3%) had different degrees of recurrence, 7 cases (5.9%) had multiple system injuries, and all of the tested autoantibodies were positive for medium and high titers. All of them developed into other rheumatic immune diseases, among which 5 cases developed into systemic lupus erythematosus and 2 cases developed into Sjogren's syndrome; 7 cases were given oral steroid therapy, including 6 cases plus immunosuppressant and 2 cases receiving methylprednisolone 20 mg/kg shock therapy. Conclusions: The first-onset HNL portion is self-healing, hormone-sensitive and has a good prognosis. For HNL with repeated disease and multiple system injury, antinuclear antibody titer should be monitored during follow-up, and attention should be paid to the possibility of developing into other rheumatological diseases, with poor prognosis.


Subject(s)
Female , Male , Humans , Child , Histiocytic Necrotizing Lymphadenitis/drug therapy , Antibodies, Antinuclear , Epstein-Barr Virus Infections , Retrospective Studies , Herpesvirus 4, Human , Prognosis , Steroids
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