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Introduction: Herein, we explore whether coil embolization (CE) is effective in treating veno-occlusive dysfunction (VOD). We present five cases with seven CE episodes and a narrative literature review. Methods: From 2013 to 2018, refractory impotence prompted five men to seek penile vascular stripping (PVS), although seven CE episodes were included. All received dual cavernosography in which erection-related veins and VOD were documented. PVS entailed the venous stripping of one deep dorsal vein and two cavernosal veins. The abridged five-item version of the International Index of Erectile Function (IIEF-5) score system and the erection hardness scale (EHS) were used, and yearly postoperative follow-ups were conducted via the Internet. Using Pub Med, a narrative literature review was performed on CE treatment for VOD or varicocele. Results: Inserted coils were scattered along the erection-related veins, including the deep dorsal veins (n = 4), periprostatic plexus (n = 5), iliac vein (n = 5), right pulmonary artery (n = 2), left pulmonary artery (n = 2), and right ventricle (n = 1). PVS resulted in some improvements in the IIEF-5 score and EHS scale. Six articles highly recommend CE treatment for VOD. All claimed it is a minimally invasive effective treatment for varicocele. Conclusions: CE is not justified as a VOD treatment, regardless of its viability in the treatment of varicocele.
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INTRODUCTION: Traditional anatomy-based penile venous surgery is deemed inadequate. Based on revolutionary insights into penile vasculature, penile venous stripping (PVS) shows promise in treating adolescent erectile dysfunction (AED). We aimed to report on this novel approach. METHODS: We conducted a retrospective analysis of 223 individuals under 30 diagnosed with veno-occlusive dysfunction (VOD) between 2009 and 2023. Among them, 83 were diagnosed with AED and divided into the PVS (n = 37) and no-surgery (NS, n = 46) groups. All participants had been dissatisfied with conventional therapeutic options. Dual pharmaco-cavernosography was the primary diagnostic modality. PVS involved stripping the deep dorsal vein and two cavernosal veins after securing each emissary's vein with a 6-0 nylon suture. Erection restoration was accessed using the abridged five-item version of the International Index of Erectile Function (IIEF-5) score system and the erection hardness scale (EHS). Statistical analysis was performed using IBM SPSS 21.0. RESULTS: There were significant differences (both p < 0.001) between the preoperative and postoperative IIEF-5 scores in the PVS and NS groups (9.8 ± 3.0 vs. 20.4 ± 2.2; 9.9 ± 2.5 vs. 9.5 ± 2.1), as well as in the EHS scores (1.7 ± 0.7 vs. 3.5 ± 0.6 and 1.8 ± 0.5 vs. 1.3 ± 0.4). The satisfaction rate was 87.9% (29/33) in the PVS group and 16.7% (17/41) in the NS group. CONCLUSIONS: AED can be effectively treated using physiological methods, although larger patient cohorts are needed for validation.
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ABSTRACT: Providing timely and effective care for patients with sepsis is challenging due to delays in recognition and intervention. The Surviving Sepsis Campaign has developed bundles that have been shown to reduce sepsis mortality. However, hospitals have not consistently adhered to these bundles, resulting in suboptimal outcomes. To address this, a multimodal quality improvement sepsis program was implemented from 2017 to 2022 in a large urban tertiary hospital. The aim of this program was to enhance the Severe Sepsis and Septic Shock Management Bundle compliance and reduce sepsis mortality. At baseline, the Severe Sepsis and Septic Shock Management Bundle compliance rates were low, at 25%, with a sepsis observed/expected mortality ratio of 1.14. Our interventions included the formation of a multidisciplinary committee, the appointment of sepsis champions, the implementation of sepsis alerts and order sets, the formation of a Code Sepsis team, real-time audits, and peer-to-peer education. By 2022, compliance rose to 62%, and the observed/expected mortality ratio decreased to 0.73. Our approach led to improved outcomes and hospital rankings. These findings underscore the efficacy of a comprehensive sepsis care initiative, emphasizing the importance of interdisciplinary collaboration. A multimodal hospital-wide sepsis performance program is feasible and can contribute to improved outcomes. However, further research is necessary to determine the specific impact of individual strategies on sepsis outcomes.
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Quality Improvement , Sepsis , Humans , Sepsis/therapy , Sepsis/mortality , Quality Improvement/organization & administration , Hospital Mortality , Guideline Adherence/statistics & numerical data , Patient Care Bundles/standards , Patient Care Bundles/methods , Tertiary Care Centers , Shock, Septic/therapy , Shock, Septic/mortality , MaleABSTRACT
OBJECTIVES: The trailing effect of Candida species is a phenomenon characterized by reduced but persistent growth at antifungal concentrations above the MIC. We assessed the impact of trailing growth on the persistence of Candida albicans candidemia in patients receiving fluconazole (FLC) therapy. METHODS: We retrospectively investigated candidemia isolates at three hospitals in southern Taiwan between 2013 and 2020. Patients treated with FLC for FLC-susceptible C. albicans candidemia were enrolled. The degree of trailing was determined as the average growth above the MIC divided by the measured growth at the lowest drug concentration using the EUCAST method and classified into four categories: residual (0.1-5%), slight (6-10%), moderate (11-15%), and heavy trailers (>15%). RESULTS: Among isolates from 190 patients, the proportions of heavy trailers at 24 hours, 48 hours, and 72 hours were 63.7% (121/190), 63.2% (120/190), and 74.7% (142/190), respectively. Persistent candidemia was observed in 17 (8.9 %) patients. The proportion of persistent C. albicans candidemia in heavy trailing isolates at 48 hours was higher than in isolates without heavy trailing (13.3% [16/120] vs. 1.4% [1/70], p = 0.007). A multivariate analysis showed that immunosuppression (OR = 7.92; 95% CI: 2.38-26.39, p = 0.001), hospitalization days after the index date of C. albicans identification (OR = 1.03; 95% CI: 1.01-1.05, p = 0.011), and heavy trailing isolates at 48 hours (OR = 10.04; 95% CI: 1.27-79.88, p = 0.029) were independent factors for persistent candidemia. DISCUSSION: The current study revealed that heavy trailing in C. albicans isolates is associated with persistent candidemia in patients receiving FLC treatment.
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Antifungal Agents , Candida albicans , Candidemia , Fluconazole , Microbial Sensitivity Tests , Humans , Fluconazole/pharmacology , Fluconazole/therapeutic use , Candidemia/microbiology , Candidemia/drug therapy , Antifungal Agents/therapeutic use , Antifungal Agents/pharmacology , Candida albicans/drug effects , Candida albicans/isolation & purification , Retrospective Studies , Male , Female , Middle Aged , Taiwan , Aged , Adult , Drug Resistance, FungalABSTRACT
Background@#Laugier-Hunziker syndrome (LHS) is a rare, benign, acquired disorder that is usually characterized by hyperpigmentation of the oral cavity and lips, along with longitudinal melanonychia. Till date, its characteristics have not been investigated in a large number of patients in a single-center study. @*Objective@#This study aimed to investigate the clinical, dermoscopic, and histological characteristics of LHS. @*Methods@#We retrospectively reviewed the medical records, biopsy specimens, and clinical and dermoscopic photographs of 21 patients diagnosed with LHS at Pusan National University Hospital (Busan and Yangsan) over a period of 15 years (2008∼2022). @*Results@#Among the 21 patients, 20 patients (95.2%) were female and one patient (4.8%) was male, and the mean age was 56.0 years (range: 18∼75 years). The lower lip (95.2%) was the most frequently affected oral mucosa, followed by the upper lip (81.0%), buccal mucosa (66.7%), tongue (57.1%), gingiva (42.9%), and palate (14.3%). The nails were the most commonly affected extraoral site, and in our study, eight of 21 patients (38.1%) presented with periungual lesions. Based on the dermoscopic findings, a globular pattern was the most common. Histologically, the lesions showed epithelial acanthosis and increased basal keratinocyte melanin without an increase in the number of melanocytes. @*Conclusion@#This is the first study to investigate the clinical, dermoscopic, and histological characteristics of patients with LHS. The results of this study could be helpful in understanding LHS.
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Congenital smooth muscle hamartoma is a benign proliferation of smooth muscles within the dermis. The classic form presents as well-defined, skin-colored, or hyperpigmented plaques associated with hypertrichosis. However, there have been reports of atypical forms, including a follicular spotted appearance, linear atrophic plaques, and morphea-like forms. In such cases, distinguishing congenital smooth muscle hamartomas from other cutaneous diseases can be challenging. Herein, we report on a 16-month-old boy who presented with a hypopigmented patch and hypertrichosis on his back since birth. Histopathological examination revealed mild acanthosis and well-defined smooth muscle bundles haphazardly oriented in the dermis. These bundles stained positively with Masson’s trichrome stain. Based on these findings, a definitive diagnosis of congenital smooth muscle hamartoma was established. In conclusion, an exceptionally rare case of congenital smooth muscle hamartoma with a hypopigmented appearance is reported.
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Background@#Female-pattern hair loss (FPHL) is characterized by diffuse hair thinning in the mid-frontal scalp and increased hair shedding. Although the use of low-dose oral minoxidil (LDOM) is increasing significantly in Korea, data on its use are limited. @*Objective@#To determine the efficacy and safety of LDOM in Korean patients with FPHL. @*Methods@#This retrospective, single-center study was conducted at Pusan National University Hospital. The study included female patients with pattern hair loss who received treatment with LDOM at 1.25 mg/d for a minimum of 6 months in combination with other treatments. Patients were eligible for LDOM addition if their previous treatments showed a limited response and the previous treatment regimen remained unchanged throughout the evaluation period. Clinical response to treatment was evaluated using the Sinclair hair loss severity scale. @*Results@#The study included 44 females with FPHL. Before treatment, the mean Sinclair scale score was 2.77, which decreased to 2.27 after treatment. By the 3rd month, one patient (2.3%) experienced worsening, while seven patients (15.9%) showed slight improvement. By the 6th month, the treatment response was as follows: stabilization in 30 patients (68.2%), slight improvement in 13 patients (29.5%), and substantial improvement in one patient (2.3%). Adverse effects, predominantly hypertrichosis, were observed in nine patients. All adverse effects improved upon discontinuation of LDOM and no life-threatening adverse effects were observed during the study. @*Conclusion@#This study provides evidence that LDOM can be an effective therapeutic option with a good safety profile for FPHL.
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BACKGROUND: Dengue virus serotype 2 (DENV-2) was the major serotype in the 2015 dengue outbreak in Taiwan, while DENV-1 and DENV-3 were dominant between 2005 and 2014. We aimed to investigate whether DENV-2 contributed to disease severity and mortality in the outbreak in Kaohsiung city, Taiwan. METHODS: We collected serum samples from dengue patients to detect the presence of DENV and determine the serotypes by using quantitative reverse transcription-polymerase chain reaction. Our cohorts comprised 105 DENV-1-infected cases and 1,550 DENV-2-infected cases. Demographic data, DENV serotype, and comorbidities were covariates for univariate and multivariate analyses to explore the association with severity and mortality. RESULTS: The results suggested that DENV-1 persisted and circulated, while DENV-2 was dominant during the dengue outbreak that occurred between September and December 2015. However, DENV-2 did not directly contribute to either severity or mortality. Aged patients and patients with diabetes mellitus (DM) or moderate to severe chronic kidney disease (CKD) had a higher risk of developing severe dengue. The mortality of dengue patients was related to a higher Charlson comorbidity index score and severe dengue. Among DENV-2-infected patients and older patients, preexisting anti-dengue IgG, DM, and moderate to severe CKD were associated with severe dengue. Moreover, female sex and severe dengue were associated with a significantly higher risk of death. CONCLUSIONS: Our findings highlight the importance of timely serological testing in elderly patients to identify potential secondary infections and focus on the meticulous management of elderly patients with DM or moderate to severe CKD to reduce dengue-related death.
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Dengue Virus , Dengue , Renal Insufficiency, Chronic , Severe Dengue , Aged , Humans , Female , Serogroup , Dengue/diagnosis , Dengue/epidemiology , Severe Dengue/epidemiology , Taiwan/epidemiology , Disease Outbreaks , Renal Insufficiency, Chronic/epidemiologyABSTRACT
PURPOSE: To test the efficacy of a self-management program based on acceptance and commitment therapy on quality of life, emotional distress, fatigue, physical activity, and fruit and vegetable intake in patients with colorectal cancer. METHODS: The study was a randomized controlled trial. A sample of 156 patients with colorectal cancer (stage I-III) was recruited by convenience sampling and participants were allocated randomly assigned to control or intervention groups. The intervention included a colorectal cancer self-management information booklet, two personal skills training sessions, and 12 follow-up telephone calls. The control group received health education leaflets. Outcome variables were assessed in both groups at baseline and every two months thereafter during the six-month follow-up period. RESULT: The mean age of participants was 62 years (range: 30-89 years). Generalized estimation equations analyses revealed significant differences over time in changes in anxiety (ß = -2.22, p = 0.001), depression (ß = -1.48, p = 0.033), fatigue (ß = 4.46, p = 0.001), physical and functional measures (ß = 6.16, p = 0.005), and colorectal-cancer-specific quality of life (ß = 7.45, p = 0.012). However, there were no significant differences in changes in physical activity or fruit and vegetable intake over time. CONCLUSION: The self-management skills provided by oncology nurses, including symptom management, psychological adjustment, and relaxation exercises, help colorectal cancer patients to overcome the challenges of cancer survivorship, accelerate their recovery, and improve their quality of life. THE TRIAL NUMBER: NCT03853278 registered on ClinicalTrials.gov.
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Acceptance and Commitment Therapy , Colorectal Neoplasms , Self-Management , Humans , Adult , Middle Aged , Aged , Aged, 80 and over , Quality of Life/psychology , Colorectal Neoplasms/therapy , Colorectal Neoplasms/psychology , Fatigue/therapyABSTRACT
Homologous recombination (HR)-mediated DNA repair is a prerequisite for maintaining genome stability. Cancer cells displaying HR deficiency (HRD) are selectively eliminated by poly(ADP-ribose) polymerase inhibitors (PARPis). To date, sequencing of HR-associated genes and analyzing genome instability have been used as clinical predictions for PARPi therapy. However, these genetic tests cannot reflect dynamic changes in the HR status. Here, we have developed a virus- and activity-based functional assay to quantify real-time HR activity directly. Instead of focusing on a few HR-associated genes, our functional assay detects endpoint HR activity and establishes an activity threshold for identifying HRD across cancer types, validated by PARPi sensitivity and BRCA status. Notably, this fluorescence-based assay can be applied to primary ovarian cancer cells from patients to reflect their level of HRD, which is associated with survival benefits. Thus, our work provides a functional test to predict the response of primary cancer cells to PARPis.
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Ovarian Neoplasms , Female , Humans , Ovarian Neoplasms/genetics , Ovarian Neoplasms/drug therapy , Homologous Recombination/genetics , BRCA1 Protein/genetics , BRCA2 Protein/genetics , Poly(ADP-ribose) Polymerase Inhibitors/pharmacology , Poly(ADP-ribose) Polymerase Inhibitors/therapeutic useABSTRACT
Sleeve gastrectomy achieves long-term weight control by reducing gastric volume. However, postoperative gastrointestinal symptoms and insufficient nutritional intake are likely to occur, which are not conducive to physical health. A retrospective study aimed to investigate changes in nutritional status and associated factors in patients after sleeve gastrectomy. Data were collected from the medical records of patients who underwent sleeve gastrectomy at a teaching hospital in Taiwan. Data from 120 patients who met the eligibility criteria were included in the analysis. The results show that sleeve gastrectomy has a strong weight loss effect. Within 12 months, the average body mass index of the patients decreased by 13.47 kg/m2. The number of morbidly obese patients decreased from 62 (51.7%) to 3 (2.5%). However, surgery is also associated with gastrointestinal symptoms and the threat of malnutrition. The number of patients with moderate to severe nutritional risk increased from 4 (3.3%) before surgery to 24 (20%) at 12-month follow-up. Likewise, the number of patients with anemia increased from 11 (9.2%) to 29 (24.17%). Gender, constipation, and diarrhea affected postoperative nutritional status. These findings suggest that patients after sleeve gastrectomy are at risk of malnutrition and require regular monitoring. Special attention should be given to women and patients with constipation or diarrhea, as they are at a particularly high risk of malnutrition.
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Malnutrition , Obesity, Morbid , Humans , Adult , Female , Retrospective Studies , Obesity, Morbid/surgery , Gastrectomy/adverse effects , Malnutrition/epidemiology , Malnutrition/etiology , Constipation , DiarrheaABSTRACT
BACKGROUND: Accurately identifying risk factors that predict fatality in dengue is crucial for patient triage and clinical management. Our objective was to identify predictors of death associated with dengue and investigate the clinical characteristics and risk factors among patients with chronic kidney disease (CKD) who died from dengue. METHODS: A multicenter longitudinal observation study conducted from 2008 to 2019. RESULTS: A total of 1272 patients (113 who died and 1186 who recovered) diagnosed with dengue were included. Old age, CKD, and an elevated white blood cell count at hospital presentation were identified as independent predictors of in-hospital mortality among individuals infected with the dengue virus. In a subgroup analysis of 138 patients with CKD infected with dengue virus, 64 (46.3%) patients died, with 46 (33.3%) patients dying within 7 days after symptom onset. Among 64 fatal dengue patients with CKD, 34.4% were in stages 2 and 3 of kidney disease, 51.5% were in stages 4 and 5, and 14.1% had end stage renal disease as per the classification by Kidney Disease Improving Global Outcomes. Multivariate analysis revealed that initial altered consciousness, pulmonary edema, and leukocytosis during hospitalization were independently associated with in-hospital mortality in CKD patients infected with the dengue virus. Leukocytosis during hospitalization and severe hepatitis were independent risk factors for death within 7 days after dengue illness onset in CKD patients. CONCLUSIONS: This study offers valuable insights into predictors linked to fatality in dengue and reinforces the importance of optimizing patient triage to improve the quality of care.
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Dengue , Kidney Failure, Chronic , Renal Insufficiency, Chronic , Humans , Adult , Hospital Mortality , Leukocytosis , Renal Insufficiency, Chronic/diagnosis , Risk Factors , Dengue/complications , Retrospective StudiesABSTRACT
Objective: This article aims to provide the experiences of mindfulness treatments from the perspectives of patients with a history of substance abuse. Data source: Peer-reviewed articles on 5 databases, namely, PubMed, PsychINFO, Medline, CINAHL and the Cochrane Library, between the year of 2000 and 2023. Study Inclusion and Exclusion Criteria: Studies were included if they were published in the English language and reported on qualitative studies that directly engaged patients with experiences of substance abuse and mindfulness treatments. Data extraction: After our initial search, 5355 studies were reviewed by title and abstract, consequently, 10 studies were included. Data synthesis: Meta-ethnography were used in this study. Data were obtained from the quotations from participants and text under the heading "results" or "findings" from the included 10 studies. Results: Effective mindfulness-based interventions (MBI) influence recovery from substance abuse. Four themes were identified as factors influencing the MBI treatment effect. They were (1) engaging in mindfulness: entry and retention, (2) perceived benefits of MBIs, (3) implementation of treatment group and (4) maintenance of treatment effect. Conclusion: This article examines the scientific literature to date and presents the evidence on the factors that influentially impact the effect of MBIs in patients with substance abuse. The findings of this study should be helpful in guiding clinical practice, policy, and future research focused on the treatment effect of MBIs for person with substance use.
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[This corrects the article DOI: 10.3389/fmed.2022.869818.].
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Percutaneous dilation tracheostomy (PDT) is a common procedure in intensive care units. Bronchoscopy has been recommended to guide PDT to decrease complication rates, but no study has analyzed bronchoscopy outcomes during PDT. In this retrospective study, we analyzed bronchoscopy findings and clinical outcomes during PDT. We collected data on all patients who underwent PDT between May 2018 and February 2021. All PDT operations were guided by bronchoscopy, and we assessed the airway to the third order of the bronchi. Forty-one patients who underwent PDT were included in this study. The average duration of PDT was 102.8 ± 34.6 s, and the average duration of bronchoscopy was 49.8 ± 43.8 s. No complications related to bronchoscopy and no significant changes in gas exchange or ventilator parameters were noted after the procedure. Fifteen patients (36.6%) exhibited abnormal bronchoscopy findings, including two patients (13.3%) with intra-airway mass lesions and obvious airway obstruction. None of the patients with intra-airway masses could be liberated from mechanical ventilation. This study observed a non-negligibly high incidence of unexpected endotracheal or endobronchial masses in patients with chronic respiratory failure during PDT, and a high rate of weaning failure was noted in these patients. The completion of bronchoscopy during PDT may provide additional clinical benefits.
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Global travel and climate change have drastically increased the number of countries with endemic or epidemic dengue. The largest dengue outbreak in Taiwan, with 43,419 cases and 228 deaths, occurred in 2015. Practical and cost-effective tools for early prediction of clinical outcomes in dengue patients, especially the elderly, are limited. This study identified the clinical profile and prognostic indicators of critical outcomes in dengue patients on the basis of clinical parameters and comorbidities. A retrospective cross-sectional study was conducted in a tertiary hospital from 1 July 2015 to 30 November 2015. Patients diagnosed with dengue were enrolled, and the initial clinical presentations, diagnostic laboratory data, details of the underlying comorbidities, and initial management recommendations based on 2009 World Health Organization (WHO) guidelines were used to evaluate prognostic indicators of critical outcomes in dengue patients. Dengue patients from another regional hospital were used to evaluate accuracy. A group B (4 points) classification, temperature < 38.5 °C (1 point), lower diastolic blood pressure (1 point), prolonged activated partial thromboplastin time (aPTT) (2 points), and elevated liver enzymes (1 point) were included in the scoring system. The area under the receiver operating characteristic curve of the clinical model was 0.933 (95% confidence interval [CI]: 0.905-0.960). The tool had good predictive value and clinical applicability for identifying patients with critical outcomes.
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Extracellular vesicles (EVs) are an important regulatory factor for natural killer cell activity (NKA) in the tumor microenvironment. The relationship between circulating EVs in the peripheral blood and natural killer (NK) cells in prostate cancer (PCa) is unclear. This study aimed at investigating the key regulators in the interaction between circulating EVs and NK cells in PCa patients before and after tumor removal. NK-cell characteristics were prospectively assessed in 79 patients treated with robot-assisted laparoscopic radical prostatectomy preoperatively and postoperatively. Compared with healthy donors, the existence of prostate tumors increased the number of circulating EVs and altered ligand expression of EVs. Circulating EVs extracted from cancer patients significantly decreased NKA of NK cells compared with those extracted from healthy donors. Upon treatment with an inhibiting antibody or small interfering RNA, natural killer cell protein group 2A (NKG2A) was identified as the main NKA regulator in cancer patients for accepting the signal from circulating EVs. After surgery, NKA was increased and NKG2A expression on NK cells was significantly reduced. The expression of ligands for natural killer cell protein group 2D (NKG2D) on EVs and the level of circulation EVs both significantly increased. With the decrease in NKG2A levels on NK cells and the increase in total NKG2D ligands on circulating EVs, which was increased postoperatively, both NKG2A on NK cells and NKG2D ligands on circulating exosomes are main regulators of NKA restoration after prostatectomy.
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Extracellular Vesicles , Prostatic Neoplasms , Male , Humans , NK Cell Lectin-Like Receptor Subfamily K/metabolism , Ligands , Killer Cells, Natural/metabolism , Extracellular Vesicles/metabolism , Prostatic Neoplasms/pathology , Prostatectomy , Tumor MicroenvironmentABSTRACT
PRRSV infects CD163-positive macrophages and skews their polarization toward an M2 phenotype, followed by T-cell inactivation. In our previous study, we found that recombinant protein A1 antigen derived from PRRSV-2 was a potential vaccine or adjuvant for immunization against PRRSV-2 infection due to its ability to repolarize macrophages into M1 subtype, thereby reducing CD163 expression for viral entry and promoting immunomodulation for Th1-type responses, except for stimulating Toll-like receptor (TLR) activation. The aim of our current study was to evaluate the effects of another two recombinant antigens, A3 (ORF6L5) and A4 (NLNsp10L11), for their ability to trigger innate immune responses including TLR activation. We isolated pulmonary alveolar macrophages (PAMs) from 8- to 12-week-old specific pathogen free (SPF) piglets and stimulated them with PRRSV (0.01 MOI and 0.05 MOI) or antigens. We also investigated the T-cell differentiation by immunological synapse activation of PAMs and CD4+ T-cells in the cocultured system. To confirm the infection of PRRSV in PAMs, we checked the expression of TLR3, 7, 8, and 9. Our results showed that the expression of TLR3, 7, and 9 were significantly upregulated in PAMs by A3 antigen induction, similar to the extent of PRRSV infection. Gene profile results showed that A3 repolarizes macrophages into the M1 subtype potently, in parallel with A1, as indicated by significant upregulation of proinflammatory genes (TNF-α, IL-6, IL-1ß and IL-12). Upon immunological synapse activation, A3 potentially differentiated CD4 T cells into Th1 cells, determined by the expression of IL-12 and IFN-γ secretion. On the contrary, antigen A4 promoted regulatory T cell (T-reg) differentiation by significant upregulation of IL-10 expression. Finally, we concluded that the PRRSV-2 recombinant protein A3 provided better protection against PRRSV infection, suggested by its capability to reeducate immunosuppressive M2 macrophages into proinflammatory M1 cells. As M1 macrophages are prone to be functional antigen-presenting cells (APCs), they can call for TLR activation and Th1-type immune response within the immunological synapse.
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Porcine Reproductive and Respiratory Syndrome , Porcine respiratory and reproductive syndrome virus , Swine , Animals , Porcine respiratory and reproductive syndrome virus/genetics , Toll-Like Receptor 3 , Toll-Like Receptors , Interleukin-12 , Immunity, Innate , Immunomodulation , Recombinant Proteins/geneticsABSTRACT
Malaria was eradicated in Taiwan in 1952; however, imported malaria cases are reported every year. The subtropical climate in Taiwan permits mosquito propagation and possible outbreaks of mosquito-borne diseases. The aim of this study was to investigate travelers' compliance and side effects of malaria prophylaxis to prevent a malaria outbreak in Taiwan. In this prospective study, we enrolled travelers who visited our travel clinic before going to malarious areas. A total of 161 questionnaires were collected and analyzed. Associations between the occurrence of side effects and compliance with antimalarial drugs were analyzed. Adjusted odds ratios were calculated after adjusting for potential risk factors in multiple logistic regression analysis. Of the 161 enrolled travelers, 58 (36.0%) reported side effects. Insomnia, somnolence, irritability, nausea, and anorexia were associated with poor compliance. Mefloquine was not associated with more neuropsychological side effects than doxycycline. Multiple logistic regression analysis showed that chemoprophylaxis compliance was affected by a younger age, visiting friends and relatives, visiting the travel clinic more than 1 week before the trip, and preferring to use the same antimalarial regimen on the next trip. Our findings could provide information to travelers besides labeled side effects to improve compliance with malaria prophylaxis and consequently help to prevent malaria outbreaks in Taiwan.