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1.
J Chem Inf Model ; 64(2): 359-377, 2024 Jan 22.
Article in English | MEDLINE | ID: mdl-38164000

ABSTRACT

p-Sulfonatocalix[n]arenes (SCnA) have demonstrated great potential for drug encapsulation through host-guest complexation to improve solubility, stability, and bioavailability. In this study, the solubilization effect of SCnA (n = 4, 6, 8) on 95 active compounds derived from traditional Chinese medicine (TCM) was investigated. Based on the significant solubilization effect on alkaloids, SC6A/SC8A and 76 alkaloids were selected as the host and guest, respectively, to determine the binding constant by competitive fluorescence titration. LASSO regression was adopted to investigate the mechanism of the complex of SCnA with alkaloids. The binding constant of alkaloids-SC6A and alkaloids-SC8A was related to the alkaloid alkalinity. Also, the electronegativity, polarization, first ionization potential, hydrogen bond potential, the molecular size, and shape of alkaloids are critical properties to determine alkaloids-SC6A binding constant as well as electronegativity, polarization, hydrophobicity, and the molecular size and shape of alkaloids play an important role for the alkaloids-SC8A binding constant.


Subject(s)
Alkaloids , Medicine, Chinese Traditional , Alkaloids/chemistry
2.
Environ Toxicol ; 39(4): 2254-2264, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38148636

ABSTRACT

CA is a plant derivative with antibacterial and antiviral pharmacological effects, however, the therapeutic effect of CA on Klebsiella pneumonia and its mechanism study is still unclear. A rat KP model was established in vitro, a pneumonia cell model was established in vivo, the histopathological changes in the lungs were observed by HE staining after CA treatment, the expression of relevant inflammatory factors was detected by ELISA, the changes in the expression of proteins related to the AhR-Src-STAT3-IL-10 signaling pathway were detected by Western blot and immunofluorescence in the lungs, and the interactions between the proteins were verified by COIP relationship. The results showed that CA was able to attenuate the injury and inflammatory response of lung tissues, and molecular docking showed that there were binding sites between CA and AhR, and COIP demonstrated that AhR interacted with both STAT3 and Ser. In addition, CA was able to up-regulate the expression levels of pathway-related proteins of AhR, IL-10, p-Src, and p-STAT3, and AhR knockdown was able to reduce LPS-induced inflammatory responses and up-regulate pathway-related proteins, whereas CA treatment of AhR-knockdown-treated A549 cells did not show any statistically significant difference compared with the AhR knockdown group, demonstrating that CA exerts its pharmacological effects. These findings elucidated the mechanism of CA in the treatment of KP and demonstrated that CA is a potential therapeutic agent for KP.


Subject(s)
Caffeic Acids , Interleukin-10 , Pneumonia , Rats , Animals , Molecular Docking Simulation , Receptors, Aryl Hydrocarbon/genetics , Receptors, Aryl Hydrocarbon/metabolism , Signal Transduction , Pneumonia/drug therapy , Klebsiella/metabolism
3.
Cytokine ; 162: 156086, 2023 02.
Article in English | MEDLINE | ID: mdl-36427469

ABSTRACT

BACKGROUND: Hypoxia is an important microenvironmental factor that induces Endometriosis (EMs), but its mechanism remains unclear. Our study aims to investigate the mechanisms of miR-150-5p on hypoxia-induced EMs. METHODS: Ovarian endometriosis cyst wall stromal cell lines CRL-7566 cells were treated with hypoxia. Cell migration ability was measured by Transwell assay. qRT-PCR was performed to detect miR-150-5p and PDCD4 expression. The autophagy-related proteins (LC3-I, LC3-II, Beclin-1, and p62), epithelial-mesenchymal transition (EMT) related proteins (E-cadherin, N-cadherin, and Vimentin) and NF-κB signaling pathway related proteins p65 expression were measured by western blot. Dual-luciferase reporter gene assay verified the binding relationship between miR-150-5p and PDCD4. RESULTS: After hypoxia treatment, the miR-150-5p expression was up-regulated in CRL-7566 cells, while the expression of PDCD4 was down-regulated. In CRL-7566 cells, autophagy, migration and EMT were increased after hypoxia treatment. The autophagy inhibitor 3-MA inhibited hypoxia-induced the autophagy, migration and EMT of CRL-7566 cells. Hypoxia-induced autophagy and EMT of CRL-7566 cells were inhibited after knocking down miR-150-5p. Then miR-150-5p negatively regulated PDCD4 expression. PDCD4 knockdown reversed the inhibitory effect of miR-150-5p silencing on hypoxia-induced autophagy and EMT of CRL-7566 cells. Inhibiting the NF-κB signaling pathway weakened the effect of PDCD4 knockdown on hypoxia-induced autophagy and EMT of CRL-7566 cells. CONCLUSION: MiR-150-5p silencing inhibited hypoxia-induced autophagy and EMT of endometriotic cells by regulating the PDCD4/NF-κB signaling pathway.


Subject(s)
Endometriosis , MicroRNAs , Female , Humans , NF-kappa B/genetics , NF-kappa B/metabolism , MicroRNAs/genetics , MicroRNAs/metabolism , Epithelial-Mesenchymal Transition/genetics , Endometriosis/genetics , Signal Transduction/genetics , Apoptosis Regulatory Proteins/genetics , Apoptosis Regulatory Proteins/metabolism , Cell Movement/genetics , Autophagy/genetics , Cell Proliferation , Hypoxia , Cell Line, Tumor , RNA-Binding Proteins/genetics , RNA-Binding Proteins/metabolism
4.
Int Immunol ; 34(7): 365-377, 2022 07 04.
Article in English | MEDLINE | ID: mdl-35485964

ABSTRACT

AIM: this study aimed to investigate the role of long non-coding RNA (lncRNA) epidermal growth factor receptor antisense RNA 1 (EGFR-AS1), an antisense transcript of EGFR, in leiomyosarcoma (LMS) and the underlying mechanisms. METHODS: levels of EGFR-AS1 and programmed death ligand 1 (PD-L1) were measured in LMS tissues and cell lines using quantitative real-time PCR (qRT-PCR), as well as western blotting and/or immunohistochemical staining; flow cytometry was employed to validate the role of EGFR-AS1 in altering the activity of CD8+ T cells; interaction of EGFR-AS1 and EGFR was determined by fluorescent in situ hybridization (FISH) and RNA pull-down; regulation of MYC on the PD-L1 promoter was assessed by chromatin immunoprecipitation (ChIP); a xenograft in vivo tumor growth assay was applied to verify the EGFR-AS1/EGFR/MYC/PD-L1 axis in vivo. RESULTS: up-regulation of EGFR-AS1 and PD-L1 in LMS tissues was negatively correlated with CD8+ T-cell infiltration; EGFR-AS1 positively regulated PD-L1, thereby strengthening interaction of LMS cells and CD8+ T cells and triggering CD8+ T cell apoptosis via the PD-1/PD-L1 checkpoint; EGFR-AS1 co-localized and interacted with EGFR to promote MYC activity; MYC was identified as a transcriptional activator of PD-L1. CONCLUSION: lncRNA EGFR-AS1 was demonstrated to increase PD-L1 expression through the EGFR/MYC pathway in LMS cells, thereby repressing T-cell infiltration and contributing to immune escape.


Subject(s)
Leiomyosarcoma , RNA, Long Noncoding , Tumor Escape , B7-H1 Antigen , Cell Line, Tumor , ErbB Receptors/genetics , ErbB Receptors/metabolism , Gene Expression Regulation, Neoplastic , Humans , In Situ Hybridization, Fluorescence , Leiomyosarcoma/genetics , RNA, Long Noncoding/genetics , RNA, Long Noncoding/metabolism
5.
EMBO Rep ; 22(4): e50128, 2021 04 07.
Article in English | MEDLINE | ID: mdl-33605073

ABSTRACT

N6 -methyladenosine (m6 A) modification of mRNA mediates diverse cellular and viral functions. Infection with Epstein-Barr virus (EBV) is causally associated with nasopharyngeal carcinoma (NPC), 10% of gastric carcinoma, and various B-cell lymphomas, in which the viral latent and lytic phases both play vital roles. Here, we show that EBV transcripts exhibit differential m6 A modification in human NPC biopsies, patient-derived xenograft tissues, and cells at different EBV infection stages. m6 A-modified EBV transcripts are recognized and destabilized by the YTHDF1 protein, which leads to the m6 A-dependent suppression of EBV infection and replication. Mechanistically, YTHDF1 hastens viral RNA decapping and mediates RNA decay by recruiting RNA degradation complexes, including ZAP, DDX17, and DCP2, thereby post-transcriptionally downregulating the expression of EBV genes. Taken together, our results reveal the critical roles of m6 A modifications and their reader YTHDF1 in EBV replication. These findings contribute novel targets for the treatment of EBV-associated cancers.


Subject(s)
Epstein-Barr Virus Infections , Nasopharyngeal Neoplasms , Adenosine/analogs & derivatives , Carrier Proteins , Herpesvirus 4, Human/genetics , Humans , RNA Stability , RNA-Binding Proteins/genetics , Virus Replication
6.
Paediatr Perinat Epidemiol ; 37(3): 191-200, 2023 03.
Article in English | MEDLINE | ID: mdl-36562434

ABSTRACT

BACKGROUND: Tic disorders are common neurodevelopmental disorders during childhood. Whether prenatal and postnatal exposure to particulate matter with an aerodynamic diameter less than 2.5 µm (PM2.5 ) plays a role in the development of tic disorders remains unexplored. OBJECTIVES: To investigate the association of exposure between PM2.5 during the pregnancy and infancy periods and the risk of tic disorders. METHODS: This birth cohort study recruited singleton live births at term gestations in central Taiwan from the Taiwan Maternal and Child Health Database between 2004 and 2012 and followed up to the end of 2017. New cases of tic disorders were defined using the ICD-9-CM (307.2) and ICD-10-CM (F95), which include all tic spectrum disorders. We assigned daily PM2.5 concentrations derived from a satellite-based model to individuals based on maternal residential addresses at delivery. We fit Cox proportional hazard model and distributed lag non-linear model to estimate the associations between PM2.5 and tic disorders, with hazard ratio (HR) with 95% confidence interval (CI) as the effect measure. RESULTS: Of the 309,376 singleton live births at term gestations, we identified 5902 (1.9%) tic disorder cases. The HR of tic disorders was positively associated with a 10 µg/m3 increase in PM2.5 : during pregnancy HR 1.09, 95% CI 1.04, 1.15 and during infancy HR 1.12, 95% CI 1.06, 1.18. The vulnerable time window for infants with increased risk of tic disorders was 6-52 weeks after birth. We observed a nonlinear relationship between PM2.5 and the risk of tic disorders, with exposure to PM2.5 between 16 and 64 µg/m3 being associated with the risk of tic disorders. The association was restricted to Tourette's disorder group. Infant sex did not modify these associations. CONCLUSIONS: Infants delivered at term and exposed to PM2.5 are associated with an increased risk of tic disorders (6-52 weeks). Further studies are needed to confirm these associations.


Subject(s)
Air Pollutants , Air Pollution , Tic Disorders , Child , Female , Humans , Infant , Pregnancy , Air Pollutants/adverse effects , Air Pollution/adverse effects , Air Pollution/analysis , Cohort Studies , Maternal Exposure/adverse effects , Particulate Matter/adverse effects , Particulate Matter/analysis , Tic Disorders/epidemiology , Tic Disorders/etiology , Vitamins
7.
Anal Bioanal Chem ; 415(9): 1589-1605, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36688984

ABSTRACT

Parkinson's disease is a health-threatening neurodegenerative disease of the elderly with clinical manifestations of motor and non-motor deficits such as tremor palsy and loss of smell. Alpha-synuclein (α-Syn) is the pathological basis of PD, it can abnormally aggregate into insoluble forms such as oligomers, fibrils, and plaques, causing degeneration of nigrostriatal dopaminergic neurons in the substantia nigra in the patient's brain and the formation of Lewy bodies (LBs) and Lewy neuritis (LN) inclusions. As a result, achieving α-Syn aggregate detection in the early stages of PD can effectively stop or delay the progression of the disease. In this paper, we provide a brief overview and analysis of the molecular structures and α-Syn in vivo and in vitro detection methods, such as mass spectrometry, antigen-antibody recognition, electrochemical sensors, and imaging techniques, intending to provide more technological support for detecting α-Syn early in the disease and intervening in the progression of Parkinson's disease.


Subject(s)
Neurodegenerative Diseases , Parkinson Disease , Aged , Humans , Parkinson Disease/diagnosis , alpha-Synuclein , Biomarkers , Tremor
8.
J Clin Nurs ; 32(3-4): 539-547, 2023 Feb.
Article in English | MEDLINE | ID: mdl-35362192

ABSTRACT

AIM AND OBJECTIVES: This study explored the effect of transdermal buprenorphine on quality of life and six symptoms in cancer patients with pain. BACKGROUND: Transdermal opioids offer advantages over traditional routes of administration. The impact of transdermal buprenorphine on quality of life for patients with cancer in Asian populations is unknown. DESIGN: This study employed a single-arm observational repeated measures design. Cancer patients with pain were evaluated prior to treatment (baseline). Over a 4-week treatment period, quality of life and symptoms were assessed at 2 and 4 weeks. This study adhered to the recommendations of STROBE guidelines. METHODS: This multi-site study was conducted in six hospitals located across northern, middle and southern Taiwan. Adult cancer patients whose pain was previously stable with opioid analgesics and, based on clinical judgement, were able to convert to transdermal buprenorphine treatment were invited to participate. Quality of life was measured with the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire Core 30 (QLQ-C30). RESULTS: Generalised estimating equations showed participants who completed at least one follow-up measurement (N = 80) over 4-weeks had a significant improvement in overall quality of life. Functional status only improved for social functioning. However, symptom severity decreased significantly for nausea/vomiting, pain, insomnia and constipation. CONCLUSIONS: The study provides initial evidence supporting transdermal buprenorphine for providing beneficial effects of improving quality of life and reducing severity of symptoms in Asian patients with cancer. RELEVANCE TO CLINICAL PRACTICE: The findings of this study can inform the clinical practice that the use of transdermal buprenorphine in cancer patients with pain may also reduce the severity of other symptoms and improve overall quality of life. TRIAL REGISTRATION DETAILS: This study was registered in ClinicalTrials.gov. Identifier: NCT04315831.


Subject(s)
Buprenorphine , Neoplasms , Adult , Humans , Quality of Life , Pain/drug therapy , Analgesics, Opioid , Buprenorphine/therapeutic use , Buprenorphine/adverse effects , Neoplasms/complications , Neoplasms/drug therapy
9.
Article in English | MEDLINE | ID: mdl-37574783

ABSTRACT

BACKGROUND: Fatigue is a common symptom in cancer patients receiving radiotherapy. However, previous studies report inconsistent patterns of fatigue change. AIM: The aim of this study was to estimate changes in fatigue among patients with cancer before, during, and after radiotherapy. METHODS: Five databases (PubMed, SDOL, CINAHL Plus with Full Text, Medline [ProQuest], and ProQuest Dissertations) were searched for studies published from January 2006 to May 2021. Three effect sizes of fatigue change (immediate, short-term, and long-term) were calculated for each primary study using standardized mean difference. A random-effect model was used to combine effect sizes across studies. Subgroup analyses and meta-regression were performed to identify potential categorical and continuous moderators, respectively. RESULTS: Sixty-five studies were included in this meta-analysis. The weighted mean effect size for immediate, short-term, and long-term effects was 0.409 (p < .001; 95% CI [0.280, 0.537]), 0.303 (p < .001; 95% CI [0.189, 0.417]), and 0.201 (p = .05; 95% CI [-0.001, 0.404]), respectively. Studies with prostate cancer patients had a significantly higher short-term (0.588) and long-term weight mean effect size (0.531) than studies with breast (0.128, -0.072) or other cancers (0.287, 0.215). Higher radiotherapy dosage was significantly associated with a higher effect size for both immediate (ß = .0002, p < .05) and short-term (ß = .0002, p < .05) effect. LINKING EVIDENCE TO ACTION: Findings from this meta-analysis indicated that radiotherapy-induced fatigue (RIF) exist for more than 3 months after the completion of treatment. Assessment of radiation-induced fatigue in cancer patients should extend long after treatment completion, especially for patients with prostate cancer and patients receiving a higher radiation dose. Interventions to reduce fatigue tailored for different treatment phases may be developed.

10.
Phytochem Anal ; 33(4): 543-553, 2022 Jun.
Article in English | MEDLINE | ID: mdl-35098593

ABSTRACT

INTRODUCTION: Folium nelumbinis is used as vegetable, functional food and herbal medicine in Asia. p-Sulfonatocalix[6]arene (SC6A) is a water-soluble supramolecular macrocycle and has never been applied to the extraction of herbal products. OBJECTIVE: In this study, SC6A-assisted extraction of nuciferine from Folium nelumbinis has been carried out to develop an eco-friendly extraction process with high extraction efficacy and easy operation. METHODS: Single-factor experiments were adopted to obtain the optimal conditions for the SC6A-assisted extraction of nuciferine from Folium nelumbinis, and then nuciferine and SC6A were separated easily by one-step alkalization. The host-guest complexes between nuciferine and SC6A were analyzed by competitive fluorescence titration, DSC, FT-IR and 1 H-NMR. RESULTS: The optimal SC6A/Folium nelumbinis/solution ratio for extraction was 0.4:1:20 (g/g/mL), with a granulometric fraction below 180 µm and an extraction time of 1 h with soaking. The purity and recovery of nuciferine extracted with SC6A were increased 29.24 and 35.73 times compared with extraction with aqueous solution, respectively. Moreover, a good reusability of SC6A in the extraction of nuciferine was demonstrated. Competitive fluorescence titration, DSC, FT-IR and 1 H-NMR characterization indicated that SC6A could form host-guest complexes with nuciferine at a ratio of 1:1. CONCLUSION: The study provided an eco-friendly, safe and effective nuciferine extraction method, which can be used for the development of nutrition supplements containing nuciferine.


Subject(s)
Aporphines , Drugs, Chinese Herbal , Aporphines/chemistry , Drugs, Chinese Herbal/chemistry , Plant Leaves/chemistry , Spectroscopy, Fourier Transform Infrared
11.
Exp Eye Res ; 213: 108859, 2021 12.
Article in English | MEDLINE | ID: mdl-34822854

ABSTRACT

Proliferative vitreoretinopathy (PVR) is the main cause of retinal detachment surgery failure. The epithelial-mesenchymal transition (EMT) induced by transforming growth factor (TGF-ß2) plays an important role in the development of PVR. Artesunate has been widely studied as a treatment for ophthalmic diseases because of its antioxidant, anti-inflammatory, antiapoptotic and antiproliferative properties. The purpose of this study was to investigate the effects of artesunate on the TGF-ß2-induced EMT in ARPE-19 cells and PVR development. We found that artesunate inhibited the proliferation and contraction of ARPE-19 cells after the EMT and the autocrine effects of TGF-ß2 on ARPE-19 cells. Additionally, the levels of Smad3 and p-Smad3 were increased in clinical samples, and artesunate decreased the levels of Smad3 and p-Smad3 in ARPE-19 cells treated with TGF-ß2. Artesunate also inhibited the occurrence and development of PVR in vivo. In summary, artesunate inhibits the occurrence and development of PVR by inhibiting the EMT in ARPE-19 cells.


Subject(s)
Antimalarials/therapeutic use , Artesunate/therapeutic use , Epithelial-Mesenchymal Transition/drug effects , Retinal Pigment Epithelium/drug effects , Smad3 Protein/antagonists & inhibitors , Transforming Growth Factor beta2/antagonists & inhibitors , Vitreoretinopathy, Proliferative/drug therapy , Animals , Antimalarials/pharmacology , Artesunate/pharmacology , Blotting, Western , Cell Cycle/physiology , Cell Line , Cell Movement/drug effects , Enzyme-Linked Immunosorbent Assay , Flow Cytometry , Humans , Intravitreal Injections , Rabbits , Retinal Pigment Epithelium/metabolism , Signal Transduction/drug effects , Smad3 Protein/metabolism , Transforming Growth Factor beta2/metabolism , Vitreoretinopathy, Proliferative/metabolism
12.
Med Sci Monit ; 27: e932885, 2021 Nov 30.
Article in English | MEDLINE | ID: mdl-34845181

ABSTRACT

BACKGROUND Moxibustion therapy has been found to ameliorate clinical symptoms of functional dyspepsia (FD). We aimed to examine the regulatory effect of moxibustion on the gastrointestinal (GI) motility in FD and explore the underlying mechanism based on the hyperpolarization-activated cyclic nucleotide-gated cation channel 1 (HCN1). MATERIAL AND METHODS Moxibustion therapy was used in FD rats induced by using classic tail-pinch and irregular feeding. Weight gain and food intake were recorded weekly, followed by detecting gastric residual rate (GRR) and small intestine propulsion rate (IPR). Next, western blotting was performed to determine the expression levels of HCN1 in the gastric antrum. qRT-PCR was used to detect HCN1 in the small intestine and hypothalamic satiety center. Double immunolabeling was used for HCN1 and ICCs in gastric antrum and small intestine. RESULTS The obtained results suggested that moxibustion treatment could increase weight gain and food intake in FD rats. The GRR and IPR were compared among the groups, which showed that moxibustion treatment could decrease GRR and increase IPR. Moxibustion increased the expression of HCN1 in the gastric antrum, small intestine, and hypothalamic satiety center. Histologically, the co-expressions of HCN1 and ICCs tended to increase in gastric antrum and small intestine. Meanwhile, HCN channel inhibitor ZD7288 prevented the above-mentioned therapeutic effects of moxibustion. CONCLUSIONS The results of the present study suggest that moxibustion can effectively improve the GI motility of FD rats, which may be related to the upregulation of HCN1 expression in gastric antrum, small intestine, and satiety center.


Subject(s)
Dyspepsia/genetics , Dyspepsia/therapy , Gastrointestinal Motility/genetics , Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels/genetics , Moxibustion/methods , Potassium Channels/genetics , Animals , Disease Models, Animal , Rats
13.
Am J Dermatopathol ; 43(12): e280-e284, 2021 Dec 01.
Article in English | MEDLINE | ID: mdl-34001745

ABSTRACT

ABSTRACT: We describe a rare case of cutaneous pseudolymphoma with Langerhans cell hyperplasia. An 84-year-old female patient presented with erythematous and pernicious-looking plaques on her scalp that had been present for months. Histologically, lymphoid follicles consisting of mixed-type lymphocytes and Langerhans cells were aggregated focally. The diagnosis was verified by several immunohistochemical stains and by clinical evaluation. Skin lesions were steadily resolved with low-dose corticosteroid and hydroxychloroquine.


Subject(s)
Langerhans Cells/pathology , Pseudolymphoma/diagnosis , Pseudolymphoma/pathology , Scalp/pathology , Skin Diseases/pathology , Aged, 80 and over , Diagnosis, Differential , Female , Humans , Hyperplasia/pathology , Lymphoma/diagnosis , Lymphoma/pathology
14.
J Adv Nurs ; 77(5): 2363-2373, 2021 May.
Article in English | MEDLINE | ID: mdl-33547835

ABSTRACT

AIMS: To identify different classes of change pattern/ trajectory of tobacco smoking behaviour after diagnosis of lung cancer using multi-wave data and to explore factors associated with the class membership. DESIGN: This is a multi-wave observational study. METHODS: Smoking behaviour data were collected at diagnosis and then every month for 6 months from 133 newly diagnosed people with lung cancer who had recently quit smoking or continued to smoke at diagnosis. These patients were recruited from three medical centres and data were collected from May 2014 to January 2017. Smoking behaviour was assessed based on patients' self-reports on whether they smoked during the last month (yes/no) for a total of seven times. Mixture latent Markov model and logistic regression were used to analyse data. RESULTS: Two latent classes of smoking trajectory were identified among recent quitters or current smokers of people with lung cancer, namely "perseverance for abstinence" and "indecisive for abstinence." Patients who were younger age (OR = 0.95, p = 0.026), exposure to second-hand smoke (OR = 3.35, p = 0.012) and lower self-efficacy for not smoking (OR = 0.96, p = 0.011) were more likely to belong to the class of "indecisive for abstinence." CONCLUSIONS: Heterogeneous classes of smoking trajectory existed in newly diagnosed people with lung cancer. The risk factors associated with a less favourable smoking trajectory can be incorporated into tailored smoking-cessation programs for patients newly diagnosed with lung cancer. IMPACT: The dynamic trajectory of smoking behaviour had not been adequately explored among newly diagnosed people with lung cancer. Two classes of smoking trajectory and the predictors associated with the class membership were identified. These findings suggest that the diagnosis of cancer is a teachable moment for smoking cessation. Patients with younger age, lower self-efficacy of not smoking and exposure to second-hand smoke at home need special attention.


Subject(s)
Lung Neoplasms , Smoking Cessation , Tobacco Smoke Pollution , Humans , Smoking/epidemiology , Taiwan/epidemiology
15.
Molecules ; 26(11)2021 Jun 05.
Article in English | MEDLINE | ID: mdl-34198938

ABSTRACT

In this study, we developed a novel cerium/ascorbic acid/iodine active species to design a redox flow battery (RFB), in which the cerium nitrate hexahydrate [Ce(NO3)3·6H2O] was used as a positive Ce3+/Ce4+ ion pair, and the potassium iodate (KIO3) containing ascorbic acid was used as a negative I2/I- ion pair. In order to improve the electrochemical activity and to avoid cross-contamination of the redox pair ions, the electroless plating and sol-gel method were applied to modify the carbon paper electrode and the Nafion 117 membrane. The electrocatalytic and electrochemical properties of the composite electrode using methanesulfonic acid as a supporting electrolyte were assessed using the cyclic voltammetry (CV) test. The results showed that the Ce (III)/Ce (IV) active species presented a symmetric oxidation/reduction current ratio (1.09) on the C-TiO2-PdO composite electrode. Adding a constant amount of ascorbic acid to the iodine solution led to a good reversible oxidation/reduction reaction. Therefore, a novel Ce/ascorbic acid/I RFB was developed with C-TiO2-PdO composite electrodes and modified Nafion 117-SiO2-SO3H membrane using the staggered-type flow channel, of which the energy efficiency (EE%) can reach about 72%. The Ce/ascorbic acid/I active species can greatly reduce the electrolyte cost compared to the all-vanadium redox flow battery system, and it therefore has greater development potential.

16.
Int J Cancer ; 147(2): 505-518, 2020 07 15.
Article in English | MEDLINE | ID: mdl-32064600

ABSTRACT

Although early detection and systemic therapies have improved the diagnosis and clinical cure rate of breast cancer, breast cancer remains the most frequently occurring malignant cancer in women due to a lack of sufficiently effective treatments. Thus, to develop potential targeted therapies and thus benefit more patients, it is helpful to understand how cancer cells work. ZIC family members have been shown to play important roles in neural development and carcinogenesis. In our study, we found that ZIC2 is downregulated in breast cancer tissues at both the mRNA and protein levels. Low expression of ZIC2 was correlated with poor outcome in breast cancer patients and serves as an independent prognostic marker. Furthermore, overexpression of ZIC2 repressed, whereas knockdown of ZIC2 promoted, cell proliferation and colony formation ability in vitro and tumor growth in vivo. Using ChIP-seq and RNA-seq analysis, we screened and identified STAT3 as a potential target for ZIC2. ZIC2 bound to the STAT3 promoter and repressed the promoter activities of STAT3. ZIC2 knockdown induced the expression of STAT3, increasing the level of phosphorylated STAT3. These results suggest that ZIC2 regulates the transcription of STAT3 by directly binding to the STAT3 promoter. Additionally, interfering STAT3 with siRNAs or inhibitors abrogated the oncogenic effects induced by decreased ZIC2. Taken together, our results indicate that ZIC2 serves as a useful prognostic marker in breast cancer and acts as a tumor suppressor by regulating STAT3, implying that STAT3 inhibitors might provide an alternative treatment option for breast cancer patients with ZIC2 downregulation.


Subject(s)
Breast Neoplasms/pathology , Down-Regulation , Nuclear Proteins/genetics , Nuclear Proteins/metabolism , STAT3 Transcription Factor/genetics , STAT3 Transcription Factor/metabolism , Transcription Factors/genetics , Transcription Factors/metabolism , Animals , Biomarkers, Tumor/genetics , Biomarkers, Tumor/metabolism , Breast Neoplasms/genetics , Breast Neoplasms/metabolism , Cell Line, Tumor , Cell Proliferation , Chromatin Immunoprecipitation Sequencing , Female , Gene Expression Regulation, Neoplastic , Humans , MCF-7 Cells , Mice , Neoplasm Transplantation , Phosphorylation , Prognosis , Promoter Regions, Genetic , Sequence Analysis, RNA , Signal Transduction
17.
Gynecol Oncol ; 159(2): 503-508, 2020 11.
Article in English | MEDLINE | ID: mdl-32861538

ABSTRACT

OBJECTIVE: Sexual dysfunction has been reported in women following treatment for gynecological cancer. However, the actual sexual activities adopted by these women are not well understood. The aims of this study were to (1) explore a relatively new concept, diversity of sexual activities (DSA), and (2) identify factors associated with DSA in women with gynecological cancer. METHODS: This cross-sectional study included 136 Taiwanese long-term partnered women with gynecologic cancer treated in a large medical center. DSA was measured with the Diversity of Sexual Activities Scale, which assesses the number of sexual activities adopted in the past 6 months. Covariates included sexual knowledge and sexual attitudes, perceived changes in relationships of intimacy since treatment, and demographic and clinical factors. RESULTS: The mean age of participants was 51.2 years (SD = 8.66); cancer diagnoses were cervical (50.7%), endometrial (31.6%), and ovarian (17.6%). The mean number of sexual activities was 2.88 (SD = 2.63); 29.4% of participants had no physical contact with their partners after treatment. The participants reported a significantly decreased overall satisfaction toward adopted sexual activities after cancer treatment. Lower DSA was associated with older age and receiving a combination of chemotherapy and radiotherapy. CONCLUSIONS: Cancer treatment has a significant impact on sexual activity in women with gynecological cancer. Around 30% of participants reported not having any physical contact with their partners since receiving cancer treatment. Sexual rehabilitation counseling that emphasizes alternative forms of sexual expression is suggested.


Subject(s)
Genital Neoplasms, Female/complications , Sexual Behavior , Sexual Dysfunction, Physiological/psychology , Adult , Cross-Sectional Studies , Female , Genital Neoplasms, Female/psychology , Genital Neoplasms, Female/therapy , Humans , Middle Aged , Sexual Partners/psychology , Surveys and Questionnaires , Taiwan
18.
Altern Ther Health Med ; 26(3): 58-60, 2020 May.
Article in English | MEDLINE | ID: mdl-31719213

ABSTRACT

CONTEXT: The first issue to be considered in acupuncture is the safety of and adverse effects from treatment. Fainting is an uncommon adverse reaction. Some researchers believe that fainting is related to the mechanism underlying acupuncture treatment, but due to moral and technical issues, studies involving fainting during the acupuncture process haven't been conducted. OBJECTIVE: The study intended to determine if specific risk factors are associated with fainting during acupuncture treatment. DESIGN: The research team performed 2 case studies involving fainting during acupuncture. SETTING: The study took place in the Physiotherapy Departments of the Leribe Motebang Hospital and the Mamohau Hospital in the Kingdom of Lesotho. PARTICIPANTS: Participants were 2 out of 2050 patients who received acupuncture treatment between October 2017 and April 2018 at one of the hospitals. They had fainted, with different clinical manifestations, during acupuncture treatment. Their main symptoms were dizziness, general weakness associated forehead sweating, palpitations, dyspnea, and nausea. RESULTS: In both cases, the patient had complained of hunger before treatment. Both claimed that they had never experienced such a situation previously. CONCLUSIONS: The research team suggests that the fainting occurred for the patients in the two case studies secondary to the hungry state. Hunger may be one of the most important causes of fainting connected to acupuncture. The failure of a practitioner to perform treatment for fainting in a timely and effective manner, or his or her improper handling of it, can lead to serious consequences. Therefore, factors that may cause fainting should be minimized to avoid their occurrence during acupuncture.


Subject(s)
Acupuncture Therapy/adverse effects , Syncope , Acupuncture Therapy/methods , Female , Humans , Risk Factors
20.
Circ J ; 83(6): 1239-1246, 2019 05 24.
Article in English | MEDLINE | ID: mdl-31019157

ABSTRACT

BACKGROUND: Data on clinical outcome after drug-eluting stent (DES) vs. bare-metal stent (BMS) implantation in patients with end-stage renal disease (ESRD) under hemodialysis are limited and controversial.Methods and Results:We identified 4,970 patients under chronic hemodialysis from Taiwan National Health Insurance Research Database (NHIRD) who had their first coronary stenting between 1 January 2007 and 31 December 2012. After 1:1 propensity score matching, we evaluated clinical outcomes for 1,151 patients in the DES group and 1,151 patients in the matched BMS group. We used ICD-9 CM codes or operation code to identify all outcomes in the study cohort after the index procedure. Primary outcomes including composite endpoints of mortality, non-fatal myocardial infarction (MI), non-fatal stroke, and revascularization after the index procedure were similar in both groups (HR, 0.94; 95% CI: 0.81-1.09; P=0.399). The results were consistent in various generations of DES vs. BMS groups. Secondary outcomes including mortality, non-fatal MI, non-fatal stroke, revascularization, cardiovascular death, hospitalization for heart failure, peptic ulcer bleeding or blood transfusion were similar in both groups, except for a lower risk of peptic ulcer disease in the DES group (HR, 0.59; 95% CI: 0.41-0.83; P=0.003) than the BMS group. CONCLUSIONS: In patients on chronic hemodialysis, implantation of DES did not have a better clinical outcome than BMS.


Subject(s)
Drug-Eluting Stents , Myocardial Infarction , Percutaneous Coronary Intervention , Renal Dialysis , Aged , Female , Humans , Kidney Failure, Chronic/mortality , Kidney Failure, Chronic/therapy , Male , Middle Aged , Myocardial Infarction/therapy , Retrospective Studies , Taiwan/epidemiology
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