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1.
BMC Palliat Care ; 23(1): 160, 2024 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-38918773

RESUMO

BACKGROUND: This study aimed to investigate the trends of aggressive care at the end-of-life (EoL) for patients with advanced cancer in Korea and to identify factors affecting such care analyzing nationwide data between 2012 to 2018. METHODS: This was a population-based, retrospective nationwide study. We used administrative data from the National Health Insurance Service and the Korea Central Cancer Registry to analyze 125,350 patients aged 20 years and above who died within one year of a stage IV cancer diagnosis between 2012 and 2018. RESULTS: The overall aggressiveness of EoL care decreased between 2012 and 2018. In patients' last month of life, chemotherapy use (37.1% to 32.3%; p < 0.05), cardiopulmonary resuscitation (13.2% to 10.4%; p < 0.05), and intensive care unit admission (15.2% to 11.1%; p < 0.05) decreased during the study period, although no significant trend was noted in the number of emergency room visits. A steep increase was seen in inpatient hospice use in the last month of life (8.6% to 26.6%; p < 0.05), while downward trends were observed for hospice admission within three days prior to death (13.9% to 11%; p < 0.05). Patients were more likely to receive aggressive EoL care if they were younger, women, had treatment in tertiary hospitals, or had hematologic malignancies. In the subgroup analysis, the overall trend of aggressive EoL care decreased for all five major cancer types. CONCLUSION: The aggressiveness of EoL care in stage IV cancer patients showed an overall decrease during 2012-2018 in Korea.


Assuntos
Neoplasias , Assistência Terminal , Humanos , República da Coreia , Feminino , Masculino , Pessoa de Meia-Idade , Neoplasias/terapia , Neoplasias/mortalidade , Estudos Retrospectivos , Idoso , Assistência Terminal/métodos , Assistência Terminal/estatística & dados numéricos , Assistência Terminal/tendências , Adulto , Idoso de 80 Anos ou mais , Sistema de Registros/estatística & dados numéricos
2.
Iran J Public Health ; 53(3): 737-741, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38919305

RESUMO

Background: There were contradictory reports about the relationship between neck circumference (NC) and thyroid status. This study aimed to compare the NCs of Korean adults with or without thyroid disease. Methods: The data of 8,198 subjects (aged 40-80 yr) that participated in the 2019-2020 Korean National Health and Nutrition Examination Survey were subjected to analysis. NCs were measured by trained staff to an accuracy of ±0.1 cm with a tape measure. Multiple logistic models were used to assess the prevalence of thyroid disease by NC level among men and pre- and postmenopausal women. Results: Approximately 5% of subjects had a history of thyroid disease. In contrast to men and postmenopausal women, premenopausal women with a larger NC had a significantly higher prevalence of thyroid disease (P-value=0.025). Conclusion: A large NC is significantly associated with thyroid disease among premenopausal Korean women.

3.
Cureus ; 16(5): e60773, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38903354

RESUMO

Lambert-Eaton myasthenic syndrome (LEMS) is an autoimmune neuromuscular disorder caused by pathogenic autoantibodies directed against voltage-gated calcium channels present on the presynaptic nerve terminal. For LEMS patients refractory to initial symptomatic treatment with amifampridine, immunomodulatory therapy with intravenous immunoglobulin (IVIG) is often utilized. However, in the authors' review of literature, the utility of subcutaneous immunoglobulin (SCIG) in the treatment of LEMS has been scarcely reported. Here, we present a unique case of non-paraneoplastic LEMS managed with SCIG with excellent clinical response and improvement on electromyography. SCIG therapy may be a reasonable alternative for patients with LEMS who do not tolerate the intravenous formulation.

4.
Sci Rep ; 14(1): 14703, 2024 06 26.
Artigo em Inglês | MEDLINE | ID: mdl-38926519

RESUMO

The role of inhaled corticosteroids (ICS) in chronic obstructive pulmonary disease (COPD) is debated. We investigated whether the administration of ICS could lower the mortality risk in patients with COPD. We utilized the Korean National Health Insurance Service-National Sample Cohort database from 2002 to 2019. We included patients who had claim codes for COPD and inhalation respiratory medicine at least twice a year. A time-dependent Cox regression model was employed to estimate the association between ICS usage and survival. The cumulative dose of ICS was classified into three groups, and the mortality risk was compared among these groups. Of 16,463 included patients, there were 4395 (26.7%) deaths during the mean follow-up period of 5.0 years. The time-dependent Cox regression model demonstrated that ICS users had a significantly lower mortality risk compared to non-users (adjusted hazard ratio, 0.89; 95% CI, 0.83-0.94; p < 0.001), particularly among individuals aged ≥ 55 years, women, never smokers, and those with history of asthma or coronary heart disease. Higher cumulative dose groups were associated with a lower mortality risk compared to the lowest cumulative dose group. In conclusion, the administration of ICS seemed to be associated with a lower mortality risk in patients with COPD.


Assuntos
Corticosteroides , Doença Pulmonar Obstrutiva Crônica , Humanos , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Doença Pulmonar Obstrutiva Crônica/mortalidade , Feminino , Masculino , Administração por Inalação , Pessoa de Meia-Idade , Corticosteroides/administração & dosagem , Corticosteroides/uso terapêutico , Idoso , República da Coreia/epidemiologia , Estudos de Coortes , Modelos de Riscos Proporcionais
5.
Microorganisms ; 12(6)2024 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-38930468

RESUMO

Given the recognized involvement of the gut microbiome in the development of obesity, considerable efforts are being made to discover probiotics capable of preventing and managing obesity. In this study, we report the discovery of Lactiplantibacillus plantarum GBCC_F0227, isolated from fermented food, which exhibited superior triglyceride catabolism efficacy compared to L. plantarum WCSF1. Molecular analysis showed elevated expression levels of α/ß hydrolases with lipase activity (abH04, abH08_1, abH08_2, abH11_1, and abH11_2) in L. plantarum GBCC_F0227 compared to L. plantarum WCFS1, demonstrating its enhanced lipolytic activity. In a high-fat-diet (HFD)-induced mouse obesity model, the administration of L. plantarum GBCC_F0227 mitigated weight gain, reduced blood triglycerides, and diminished fat mass. Furthermore, L. plantarum GBCC_F0227 upregulated adiponectin gene expression in adipose tissue, indicative of favorable metabolic modulation, and showed robust growth and low cytotoxicity, underscoring its industrial viability. Therefore, our findings encourage the further investigation of L. plantarum GBCC_F0227's therapeutic applications for the prevention and treatment of obesity and associated metabolic diseases.

6.
Dev Psychopathol ; : 1-12, 2024 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-38774991

RESUMO

The moral self-concept (MSC) describes how children view themselves as moral agents. Research suggests that the MSC may relate to moral behavior, yet little is known about how MSC relates to moral behavior in preschoolers. One hundred six low-income children (M age = 52.78 months, SD = 6.61 months) and their teachers participated in this study. In the fall, children completed a MSC puppet task measure. In the fall and spring, teachers reported via children's survey prosocial behavior and aggressive behavior. We used a person-centered approach to identify profiles of MSC, which revealed two profiles of behavior: comforting prosocials and helpful aggressors. Comforting prosocials showed a moderate preference for comforting, a slight preference for helping, and a slight preference for avoiding aggression. Helpful aggressors had a moderate aversion to comforting, a strong preference for helping, and a slight preference for aggressive behavior. Subsequent analysis of covariance analysis revealed that MSC profiles did not differ in concurrent behavior but did differ in behavior 6 months later. The comforting prosocial group participated in more aggression than the helpful aggressors. Additionally, analysis of covariance analysis of change in aggression scores over time showed that comforting prosocials aggression increased, while helpful aggressors aggression decreased. Both groups over time decreased in prosocial behavior, but to different degrees. Overall, findings reveal that the MSC in preschoolers may relate to future not concurrent moral behavior.

7.
Res Aging ; : 1640275241248773, 2024 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-38657141

RESUMO

This study aimed to examine the impact of COVID-19 on loneliness among rural older women in senior cohousing in Korea. Using a natural experimental study design, we investigated how the pandemic-induced closure of cohousing affected the former residents' loneliness. The sample comprised 84 cohousing residents and 51 individuals in conventional homes. The dependent variable is loneliness, and the independent variables include housing transition, social contact, and support from neighbors and friends. Our findings from fixed effect regression models showed former cohousing residents were less likely to experience loneliness when they had more contact with their friends and neighbors, while negative relationships exacerbated feelings of loneliness. Sharing meals and participating in activities with friends and neighbors in cohousing helped the residents develop effective coping strategies. Senior cohousing in rural areas has the potential to strengthen social ties and protect the most vulnerable subgroup of older adults from social isolation and loneliness.

8.
Integr Cancer Ther ; 23: 15347354241233544, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38469817

RESUMO

BACKGROUND: In the era of precision medicine, individual temperature sensitivity has been highlighted. This trait has traditionally been used for cold-heat pattern identification to understand the inherent physical characteristics, which are influenced by genetic factors, of an individual. However, genome-wide association studies (GWASs) on this trait are limited. METHODS: Using genotype data from 90 patients with advanced non-small cell lung cancer (NSCLC) and epidermal growth factor receptor mutations, we performed a GWAS to assess the association between single nucleotide polymorphisms (SNPs) and temperature sensitivity, such as cold and heat scores. The score of each participant was evaluated using self-administered questionnaires on common symptoms and a 15-item symptom-based cold-heat pattern identification questionnaire. RESULTS: The GWAS was adjusted for confounding factors, including age and sex, and significant associations were identified for cold and heat scores: SNP rs145814326, located on the intron of SORCS2 at chromosome 4p16.1, had a P-value of 1.86 × 10-7; and SNP rs79297667, located upstream from SEMA4D at chromosome 9q22.2, had a P-value of 8.97 × 10-8. We also found that the genetic variant regulates the expression level of SEMA4D in the main tissues, including the lungs and white blood cells, in NSCLC. CONCLUSIONS: SEMA4D was found to be significantly associated with temperature sensitivity in patients with NSCLC, suggesting an increased expression of SEMA4D in patients with higher heat scores. The potential role of temperature sensitivity as a prognostic or predictive marker of immune response in NSCLC should be further studied.


Assuntos
Antígenos CD , Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Semaforinas , Humanos , Carcinoma Pulmonar de Células não Pequenas/genética , Neoplasias Pulmonares/genética , Estudo de Associação Genômica Ampla , Temperatura
9.
J Autoimmun ; 145: 103206, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38554656

RESUMO

Crohn's disease (CD) is a chronic inflammatory disorder affecting the bowel wall. Tissue-resident memory T (Trm) cells are implicated in CD, yet their characteristics remain unclear. We aimed to investigate the transcriptional profiles and functional characteristics of Trm cells in the small bowel of CD and their interactions with immune cells. Seven patients with CD and four with ulcerative colitis as controls were included. Single-cell RNA sequencing and paired T cell receptor sequencing assessed T cell subsets and transcriptional signatures in lamina propria (LP) and submucosa/muscularis propria-enriched fractions (SM/MP) from small bowel tissue samples. We detected 58,123 T cells grouped into 16 populations, including the CD4+ Trm cells with a Th17 signature and CD8+ Trm clusters. In CD, CD4+ Trm cells with a Th17 signature, termed Th17 Trm, showed significantly increased proportions within both the LP and SM/MP areas. The Th17 Trm cluster demonstrated heightened expression of tissue-residency marker genes (ITGAE, ITGA1, and CXCR6) along with elevated levels of IL17A, IL22, CCR6, and CCL20. The clonal expansion of Th17 Trm cells in CD was accompanied by enhanced transmural dynamic potential, as indicated by significantly higher migration scores. CD-prominent Th17 Trm cells displayed an increased interferon gamma (IFNγ)-related signature possibly linked with STAT1 activation, inducing chemokines (i.e., CXCL10, CXCL8, and CXCL9) in myeloid cells. Our findings underscored the elevated Th17 Trm cells throughout the small bowel in CD, contributing to disease pathogenesis through IFNγ induction and subsequent chemokine production in myeloid cells.


Assuntos
Doença de Crohn , Memória Imunológica , Células T de Memória , Células Th17 , Humanos , Doença de Crohn/imunologia , Doença de Crohn/genética , Doença de Crohn/patologia , Células Th17/imunologia , Células Th17/metabolismo , Células T de Memória/imunologia , Células T de Memória/metabolismo , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Mucosa Intestinal/imunologia , Mucosa Intestinal/metabolismo , Mucosa Intestinal/patologia , Subpopulações de Linfócitos T/imunologia , Subpopulações de Linfócitos T/metabolismo , Biomarcadores , Perfilação da Expressão Gênica , Adulto Jovem
10.
Nano Lett ; 24(8): 2574-2580, 2024 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-38349338

RESUMO

The highly programmable and responsive molecular recognition properties of DNA provide unparalleled opportunities for fabricating dynamic nanostructures capable of structural transformation in response to various external stimuli. However, they typically operate in tightly controlled environments because certain conditions (ionic strength, pH, temperature, etc.) must be met for DNA duplex formation. In this study, we adopted site-specific enzymatic ligation and DNA-based layer-by-layer thin film fabrication to build shape-morphing DNA-linked nanoparticle films operational in a broad range of environments. The ligated films remained intact in unusual conditions such as pure water and high temperature causing dissociation of DNA duplexes and showed predictable and reversible shape morphing in response to various environmental changes and DNA exchange reactions. Furthermore, domain-selective ligation combined with photoinduced interlayer mixing allowed for the fabrication of unusual edge-sealed double-layered films through midlayer etching, which is difficult to realize by other methods.


Assuntos
Nanopartículas , Nanoestruturas , DNA/química , Água , Temperatura
11.
BMC Pulm Med ; 24(1): 69, 2024 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-38308277

RESUMO

BACKGROUND: Viral infection is a risk factor for asthma exacerbation (AE). However, bacterial infections related to AE in adults are poorly known. On the other hand, obese patients with asthma have their own clinical and biological characteristics compared with non-obese patients. METHODS: We investigated the differences in isolated pathogens for AE between obese and non-obese patients with asthma. We included 407 patients with AE from 24 medical centers in Korea. Microorganisms isolated from culture, RT-PCR or serologic tests using lower respiratory tract specimens were retrospectively investigated. RESULTS: A total of 171 obese and 236 non-obese patients with asthma were included for analysis. Compared to non-obese patients, obese patients were associated with women (77.2% vs. 63.6%), never smoker (82.5% vs. 73.9%), shorter duration of asthma (7.9 ± 8.4 vs. 10.5 ± 10.1 years), less history of pulmonary tuberculosis (8.8% vs. 17.4%), and more comorbidity of allergic rhinitis (48.5% vs. 0.8%). Viral and/or bacterial infections were detected in 205 patients (50.4%) with AE. The numbers of patients with viral only, bacterial only, or both infections were 119, 49, and 37, respectively. The most commonly isolated bacterium was Streptococcus pneumoniae, followed by Pseudomonas aeruginosa and Chlamydia pneumoniae. Obese patients showed a lower incidence of Chlamydia pneumoniae infection. In the non-obese group, bacterial infection, especially Chlamydia pneumoniae infection, was significantly associated with the duration of systemic corticosteroid use (13.6 ± 19.8 vs. 9.7 ± 6.7 days, p = 0.049). CONCLUSION: Bacterial infection was associated with a longer period of corticosteroid use in the non-obese group. Acute Chlamydia pneumoniae infection was less associated with obese patients with AE. Further well-designed studies are needed to evaluate microorganisms and the efficacy of antibiotics in patients with AE.


Assuntos
Asma , Infecções Bacterianas , Infecções por Chlamydophila , Infecções Respiratórias , Adulto , Humanos , Feminino , Infecções Respiratórias/complicações , Infecções Respiratórias/epidemiologia , Infecções Respiratórias/microbiologia , Estudos Retrospectivos , Asma/complicações , Asma/epidemiologia , Infecções Bacterianas/epidemiologia , Infecções Bacterianas/complicações , Obesidade/complicações , Obesidade/epidemiologia , Sistema Respiratório , Infecções por Chlamydophila/complicações , Corticosteroides
12.
Stroke ; 55(3): 757-761, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38299388

RESUMO

BACKGROUND: Asians in the United States, facing health care disparities, have increased stroke risk. Multiple subgroups, with distinct cultures and languages, add complexity to caring for Asian American (AsA) communities. We developed a tailored stroke education program for underserved West Michigan AsA communities. Methodology, lessons learned, and diversity, equity, and inclusion insights are described. METHODS: Neurology residents and faculty, in collaboration with trained community-specific navigators, developed culturally resonant stroke education that was tailored to meet the needs of specific self-identified West Michigan AsA communities. Educational and debriefing sessions were delivered over 6 months, following the Plan-Do-Study-Act model, to elucidate diversity, equity, and inclusion insights and improve materials and delivery methods. RESULTS: Eighty-six non-English-speaking participants from 5 self-identified AsA communities (Burmese, Buddhist Vietnamese, Catholic Vietnamese, Chinese, and Nepali) attended educational stroke sessions. The average age of attendees was 57.6±13.2 years; most were females (70%). Diversity, equity, and inclusion insights included identification of Asian cultural beliefs about acute stroke treatment (eg, bloodletting), investigator insights (eg, need for kitchen-table programs), systemic barriers (eg, language), and mitigation strategies. CONCLUSIONS: Institutions should consider the integration of equity-focused, trainee-influenced quality improvement projects, such as this culturally resonant stroke educational program for AsA, to enhance stroke care in these vulnerable communities.


Assuntos
Povo Asiático , Diversidade, Equidade, Inclusão , Promoção da Saúde , Acidente Vascular Cerebral , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Asiático , Escolaridade , Michigan/epidemiologia , Estados Unidos , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etnologia , Acidente Vascular Cerebral/terapia
13.
J Korean Med Sci ; 39(2): e23, 2024 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-38225786

RESUMO

BACKGROUND: Although data on post-coronavirus disease 2019 (COVID-19) conditions are extensive, the prognostic factors affecting symptom duration in non-hospitalized patients with COVID-19 are currently not well known. We aimed to investigate the various prognostic factors affecting symptom duration among outpatients with COVID-19. METHODS: Data were analyzed from 257 patients who were diagnosed with mild COVID-19 and visited the 'post-COVID-19 outpatient clinic' between April and December 2022 after a mandatory isolation period. The symptom duration was measured from diagnosis to symptom resolution. Laboratory and pulmonary function test results from their first visit were collected. RESULTS: The mean age of patients was 55.7 years, and the median symptom duration was 57 days. The development of post-COVID-19 conditions (> 12 weeks) were significantly correlated with not using antiviral drugs, leukocytosis (white blood cell > 10,000/µL), lower 25(OH)D3 levels, forced vital capacity (FVC) < 90% predicted, and presence of dyspnea and anxiety/depression. Additionally, in multivariable Cox regression analysis, not using antiviral drugs, lower 25(OH)D3 levels, and having dyspnea were poor prognostic factors for longer symptom duration. Particularly, vitamin D deficiency (< 20 ng/mL) and not using antivirals during the acute phase were independent poor prognostic factors for both post-COVID-19 condition and longer symptom duration. CONCLUSION: The non-use of antivirals, lower 25(OH)D3 levels, leukocytosis, FVC < 90% predicted, and the presence of dyspnea and anxiety/depression symptoms could be useful prognostic factors for predicting post-COVID-19 condition in outpatients with COVID-19. We suggest that the use of antiviral agents during the acute phase and vitamin D supplements might help reduce COVID-19 symptom duration.


Assuntos
COVID-19 , Humanos , Pessoa de Meia-Idade , COVID-19/complicações , SARS-CoV-2 , Prognóstico , Pacientes Ambulatoriais , Leucocitose , Dispneia/etiologia , Antivirais/uso terapêutico
14.
Nat Commun ; 15(1): 192, 2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-38167422

RESUMO

High-rate production of multicarbon chemicals via the electrochemical CO2 reduction can be achieved by efficient CO2 mass transport. A key challenge for C-C coupling in high-current-density CO2 reduction is how to promote *CO formation and dimerization. Here, we report molecularly enhanced CO2-to-*CO conversion and *CO dimerization for high-rate ethylene production. Nanoconfinement of ascorbic acid by graphene quantum dots enables immobilization and redox reversibility of ascorbic acid in heterogeneous electrocatalysts. Cu nanowire with ascorbic acid nanoconfined by graphene quantum dots (cAA-CuNW) demonstrates high-rate ethylene production with a Faradaic efficiency of 60.7% and a partial current density of 539 mA/cm2, a 2.9-fold improvement over that of pristine CuNW. Furthermore, under low CO2 ratio of 33%, cAA-CuNW still exhibits efficient ethylene production with a Faradaic efficiency of 41.8%. We find that cAA-CuNW increases *CO coverage and optimizes the *CO binding mode ensemble between atop and bridge for efficient C-C coupling. A mechanistic study reveals that ascorbic acid can facilitate *CO formation and dimerization by favorable electron and proton transfer with strong hydrogen bonding.

15.
Integr Cancer Ther ; 23: 15347354231226256, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38281123

RESUMO

BACKGROUND: Gastric cancer is a common cause of global mortality, with significant challenges during treatment due to side effects and complications. Traditional herbal medicine (THM) has emerged as a potential adjuvant therapy to enhance cancer treatment by reducing side effects and bolstering the immune response. This study conducted a meta-analysis to assess the efficacy and safety of THM as an adjuvant therapy in post-surgical gastric cancer patients. METHODS: PubMed, Cochrane Library, EMBASE, CNKI, CiNii, KMBASE, KISS, OASIS, RISS, and ScienceON databases were searched from inception through December, 2021. The outcomes considered in this analysis encompassed tumor response, quality of life (QoL), side effects, and tumor markers. Additionally, a frequency analysis of the most commonly used herbs in the included studies was conducted. A total of 36 randomized controlled trials (RCTs) were included, and data were extracted according to study design. The analysis compared groups receiving chemotherapy alone with those receiving both chemotherapy and THM treatment. RESULTS: The group receiving both chemotherapy and THM showed substantial improvement in tumor response compared to the chemotherapy-only control group (RR 1.25, 95% CI [1.09, 1.45]). QoL also significantly increased in the THM-treated group. Most drug adverse reactions displayed statistical significance, except for platelet reduction. Tumor markers CEA, CA19-9, and CA72-4 exhibited significant improvements, but CA125 did not. The 1, 2, and 3-year survival rates improved, with RR values of 1.08 (95% CI [1.02, 1.14]), 1.32 (95% CI [1.19, 1.47]), and 1.42 (95% CI [1.12, 1.79]) respectively. However, some publication bias was indicated. CONCLUSION: THM may offer potential benefits as a complementary approach to post-surgical anticancer therapy in gastric cancer patients. Improved tumor response, quality of life, and survival rates were reported. However, it is important to exercise caution due to the possibility of publication bias, and further research is needed to confirm these findings.Registration:PROSPERO CRD 42022354133.


Assuntos
Neoplasias Gástricas , Humanos , Neoplasias Gástricas/tratamento farmacológico , Medicina Herbária , Quimioterapia Adjuvante , Biomarcadores Tumorais , Extratos Vegetais , Ensaios Clínicos Controlados Aleatórios como Assunto
16.
J Antibiot (Tokyo) ; 77(4): 257-263, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38243062

RESUMO

Using mass spectrometry (MS)-guided isolation methods, a new thiodiketopiperazine derivative (1) and exserohilone (2) were isolated from an EtOAc-extract of Setosphaeria rostrata culture medium. The chemical structure of the new compound was elucidated by MS and NMR spectroscopy, and the absolute configurations were established by the quantum mechanical calculations of electronic circular dichroism. All isolated compounds were examined for their effects on reactive oxygen species (ROS) production, matrix metalloproteinase 1 (MMP-1) secretion, and procollagen type I α1 secretion in tumor necrosis factor (TNF)-α-induced human dermal fibroblasts. Compound 1 and exserohilone (2) exhibited the inhibition of TNF-α-induced ROS generation and MMP-1 secretion. Additionally, compound 1 and exserohilone (2) increased the procollagen type I α1 secretion. Compound 1 docked computationally into the active site of MMP-1 (-6.0 kcal/mol).


Assuntos
Ascomicetos , Metaloproteinase 1 da Matriz , Fator de Necrose Tumoral alfa , Humanos , Metaloproteinase 1 da Matriz/farmacologia , Espécies Reativas de Oxigênio , Fibroblastos
17.
J Crohns Colitis ; 18(2): 223-232, 2024 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-37594364

RESUMO

BACKGROUND AND AIMS: Creeping fat [CF] is a poorly understood feature of Crohn's disease [CD], characterized by the wrapping of mesenteric adipose tissue [MAT] around the inflamed intestine. The aim of this study was to investigate the transcriptional profile and compositional features of CF. METHODS: We collected 59 MAT samples: 23 paired samples from patients with CD (CF [CD-CF] and MAT around the uninflamed intestine [CD-MAT]) and 13 MAT samples from non-CD patients [Con-MAT]. Differentially expressed gene [DEG], functional pathway, cell deconvolution, and gene co-expression network analyses were performed. RESULTS: By comparing three different MAT samples, we identified a total of 529 DEGs [|log2FoldChange| > 1.5; false discovery rate < 0.05]. Of these, 323 genes showed an incremental pattern from Con-MAT to CD-MAT, and to CD-CF, while 105 genes displayed a decremental pattern. Genes with an incremental pattern were related to immune cell responses, including B- and T-cell activation, while genes with a decremental pattern were involved in cell trafficking and migration. Cell deconvolution analysis revealed significant changes in cellular composition between the CD-CF and Con-MAT groups, with increased proportions of B-cells/plasma cells [p = 1.16 × 10-4], T-cells [p = 3.66 × 10-3], and mononuclear phagocytes [p = 3.53 × 10-2] in the CD-CF group. In contrast, only the B-cell/plasma cell component showed a significant increase [p = 1.62 × 10-2] in the CD-MAT group compared to Con-MAT. CONCLUSION: The distinct transcriptional profiles and altered cellular components of each MAT found in our study provide insight into the mechanisms behind CF and highlight its possible role in the pathogenesis of CD.


Assuntos
Doença de Crohn , Humanos , Doença de Crohn/patologia , Intestinos/patologia , Tecido Adiposo/metabolismo , Linfócitos T/metabolismo , Perfilação da Expressão Gênica
18.
J Gerontol Soc Work ; 67(1): 55-79, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37272584

RESUMO

Using data from 14 waves (2003-2016) of the Korean Labor and Income Panel Study (KLIPS) (N = 1,627 individuals aged 45-64; 22778 observations), in this study, we conducted sequence analysis and a multi-categorical variable mediation analysis (1) to examine to what extent long-term work histories exhibit varying degrees of de-standardization and precariousness using sequence analysis (2) to explore the potential mediating effects of work, material, and social environments in the association between multiple work sequences and self-rated health. We found the coexistence of a relatively stable long-term employment pattern and a high prevalence of precariousness. The health and economic risks of precarious work fall disproportionately on older workers. Future researchers should continue to analyze whether the COVID-19 pandemic will lead to long-term changes in the workforce to improve our understanding of and response to working in later life and its health effects.


Assuntos
Nível de Saúde , Pandemias , Humanos , Pessoa de Meia-Idade , Idoso , Emprego , Renda , Meio Social
19.
J Gerontol Soc Work ; 67(1): 80-95, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37246421

RESUMO

This study compared the level of loneliness among older immigrants residing in subsidized senior housing with that of non-immigrant residents. The study also sought to examine the differential influence of perceived social cohesion on loneliness among these groups. 231 study participants were recruited from subsidized senior housing in St. Louis and the Chicago area. Multiple regression analyses showed that there was a significant difference in loneliness between immigrants and non-immigrants (b = .3, SE = 0.150, p < .05). Also, perceived social cohesion was negatively associated with loneliness (b=-.102, SE = .022, p < .001). Furthermore, immigration status moderated the relationship (b=-.147, SE = .043, p < .01), showing immigrants may benefit more from higher perceived social cohesion in terms of loneliness. The results suggest that perceived social cohesion may act as an important community-level protective factor against loneliness, particularly for older immigrants residing in subsidized senior housing. Creating socially cohesive environments, particularly for this subgroup, could be a crucial strategy for mitigating loneliness. .


Assuntos
Emigrantes e Imigrantes , Solidão , Humanos , Idoso , Instituição de Longa Permanência para Idosos , Coesão Social , Pobreza
20.
J Appl Gerontol ; 43(7): 814-828, 2024 07.
Artigo em Inglês | MEDLINE | ID: mdl-38116663

RESUMO

Subsidized senior housing (SSH) is important to support healthy aging among vulnerable subgroups of older adults, yet progress in developing and expanding SSH has been limited. This scoping review had two research questions: (1) What are the trends in SSH empirical studies? (2) What are the main topics in the existing literature on SSH in the US? We reviewed a total of 61 articles and found several notable trends, including a focus on racial and ethnic minorities, cognitive impairment among SSH residents, and collaborative partnerships between housing operators and healthcare providers. More than half of the studies were quantitative, while the rest were qualitative or mixed-methods. The lack of longitudinal or causal design research reflects the limited empirical knowledge of SSH. Four themes emerged: health and well-being, healthcare use and health behaviors, social relations, and housing relocation. We discussed implications for future research and program development efforts in SSH.


Assuntos
Habitação para Idosos , Humanos , Idoso , Estados Unidos , Habitação Popular
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