Nomogram-based risk assessment model for left ventricular hypertrophy in patients with essential hypertension: Incorporating clinical characteristics and biomarkers.

Left ventricular hypertrophy (LVH) is a hypertensive heart disease that significantly escalates the risk of clinical cardiovascular events. Its etiology potentially incorporates various clinical attributes such as gender, age, and renal function. From mechanistic perspective, the remodeling process of LVH can trigger increment in certain biomarkers, notably sST2 and NT-proBNP. This multicenter, retrospective study aimed to construct an LVH risk assessment model and identify the risk factors. A total of 417 patients with essential hypertension (EH), including 214 males and 203 females aged 31-80 years, were enrolled in this study; of these, 161 (38.6%) were diagnosed with LVH. Based on variables demonstrating significant disparities between the LVH and Non-LVH groups, three multivariate stepwise logistic regression models were constructed for risk assessment: the "Clinical characteristics" model, the "Biomarkers" model (each based on their respective variables), and the "Clinical characteristics + Biomarkers" model, which amalgamated both sets of variables. The results revealed that the "Clinical characteristics + Biomarkers" model surpassed the baseline models in performance (AUC values of the "Clinical characteristics + Biomarkers" model, the "Biomarkers" model, and the "Clinical characteristics" model were .83, .75, and .74, respectively; P < .0001 for both comparisons). The optimized model suggested that being female (OR: 4.26, P <.001), being overweight (OR: 1.88, p = .02) or obese (OR: 2.36, p = .02), duration of hypertension (OR: 1.04, P = .04), grade III hypertension (OR: 2.12, P < .001), and sST2 (log-transformed, OR: 1.14, P < .001) were risk factors, while eGFR acted as a protective factor (OR: .98, P = .01). These findings suggest that the integration of clinical characteristics and biomarkers can enhance the performance of LVH risk assessment.

The Effect of Post-Graduate Year Training on the Self-Efficacy and Emotional Traits of Physicians Facing the COVID-19 Pandemic.

Background: Taiwan implemented the post-graduate year (PGY) training to reform the medical education system to provide holistic medical care after severe acute respiratory syndrome in 2003. In late 2019, COVID-19 quickly spread across the globe and became a pandemic crisis. This study aimed to investigate whether the establishment of the PGY training had positive effects on the self-efficacy and emotional traits of medical workers. Methods: One hundred and ten physicians, including PGY, residents, and visiting staff, were investigated using the General Self-Efficacy Scale (GSES) and Emotional Trait and State Scale (ETSS), and their feedback and suggestions were collected. An exploratory factor analysis was done to reduce the factor dimensions using the varimax rotation method, which was reduced to four factors: "the ability to cope with ease", "proactive ability", "negative emotion", and "positive emotion". A comparison with and without PGY training when facing the COVID-19 pandemic was conducted. Results: Those who had received PGY training (n = 77) were younger, had a lower grade of seniority, and had less practical experience than those who had not received PGY (n = 33). Those who had received PGY training had significantly higher scores for the factors "ability to cope with ease", "proactive ability", and "positive emotion" than those who had not received PGY training. Conclusion: The study revealed that PGY training may have had positive effects on the personal self-efficacy and emotional traits of physicians coping with the COVID-19 pandemic.

Association Between the Communication Skills of Physicians and the Signing of Do-Not-Resuscitate Consent for Terminally Ill Patients in Emergency Rooms (Cross-Sectional Study).

BACKGROUND: The signing of do-not-resuscitate (DNR) consent is mandatory in providing a palliative approach in the end-of-life care for the terminally ill patients and requires an effective communication between the physician and the patients or their family members. This study aimed to investigate the association between the communication skills of physicians who participated in the SHARE (supportive environment, how to deliver the bad news, additional information, reassurance, and emotional support) model course on the patient notification and the signing of do-not-resuscitate (DNR) consent by the terminally ill patients at emergency rooms. METHODS: Between May 1, 2017 and April 30, 2018, a total of 109 terminally ill patients were enrolled in this study, of which 70 had signed a DNR and 39 had not. Data regarding the patients' medical records, a questionnaire survey completed by family members, and patient observation forms were used for the assessment of physicians' communication skills during patient notification. The observation form was designed based on the SHARE model. A multivariate logistic regression model was applied to identify the independent significant factors of the patient and family member variables as well as the four main components of the observation form. RESULTS: The results revealed that knowing how to convey bad news and providing reassurance and emotional support were significantly correlated with a higher rate of signing DNR consent. Additionally, physician-initiated discussion with family members and a predicted limited life expectancy were negative independent significant factors for signing DNR consent. CONCLUSION: This study revealed that good communication skills help to increase the signing of DNR consent. The learning of such skills from attendance of the SHARE model course is encouraged for the physicians in the palliative care of terminally ill patients in an emergency room.

Nine Novel Phages from a Plateau Lake in Southwest China: Insights into Aeromonas Phage Diversity.

Aeromonas species are common pathogens of fish and some of them can opportunistically cause infectious diseases in humans. The overuse of antibiotics has led to the emergence of bacterial drug-resistance. To date, only 51 complete genome sequences of Aeromonas phages are available in GenBank. Here, we report the isolation of nine Aeromonas phages from a plateau lake in China. The protein cluster, dot plot and ANI analyses were performed on all 60 currently sequenced Aeromonas phage genomes and classified into nine clusters and thirteen singletons. Among the nine isolated phages, the DNA-packaging strategy of cluster 2L372D (including 2L372D, 2L372X, 4L372D, 4L372XY) is unknown, while the other five phages use the headful (P22/Sf6) DNA-packaging strategy. Notably, the isolated phages with larger genomes conservatively encode auxiliary metabolism genes, DNA replication and metabolism genes, while in smaller phage genomes, recombination-related genes were conserved. Finally, we propose a new classification scheme for Aeromonas phages.

The training in SHARE communication course by physicians increases the signing of do-not-resuscitate orders for critical patients in the emergency room (cross-sectional study).

BACKGROUND: Communication skills may be an important skill for the front-line emergency physicians. AIM: This study aimed to investigate the effect of training in a SHARE communication course by emergency physicians on patient notification and signing of do-not-resuscitate (DNR) orders for critical patients in the emergency room. DESIGN: From a total of 29 attending physicians in the emergency department, 19 physicians had been trained in the SHARE communication course. An observation form designed based on the SHARE training was completed by two observers who noted the communication process between physicians and patients and family members during patient notification and signing a DNR order. To assess the influence of physicians trained in a SHARE communication course on the signing of DNR orders, a propensity score-matched population was created to reduce the potential selection bias of patients and family members. SETTING: Level 1 trauma medical center in southern Taiwan. RESULTS: There were 145 individuals enrolled in the study, of which 93 signed the DNR order, and 52 did not sign it. Analysis from 23 matched pairs from this population revealed that significantly more family members would sign a DNR order if the physician had been trained in the SHARE communication course than when they did not receive this training (78.3% vs. 39.1%, respectively, p = 0.017). The overall score of the observation form for physicians was higher in those individuals who had signed a DNR order than in those who did not sign it (29.48 ±â€¯3.72 vs. 26.13 ±â€¯3.52, respectively, p = 0.003), especially when the physician had chosen a quiet environment (1.35 ±â€¯0.65 vs. 0.87 ±â€¯0.69, respectively, p = 0.020), understood the patient's wishes and confirmed them (1.78 ±â€¯0.42 vs. 1.30 ±â€¯0.70, respectively, p = 0.008), and expressed concern (1.48 ±â€¯0.79 vs. 0.96 ±â€¯0.77, respectively, p = 0.028). In addition, a feedback survey about the feelings experienced by these physicians during the process of patient notification did not reveal a significant difference during the communication with those who had or had not signed DNR orders. CONCLUSION: The training in a SHARE communication course can improve the communication skills of emergency physicians in patient notification and signing of DNR orders for critical patients.

Telomerase reverse transcriptase acts in a feedback loop with NF-κB pathway to regulate macrophage polarization in alcoholic liver disease.

Activation of Kupffer cells (KCs) plays a central role in the pathogenesis of alcoholic liver disease (ALD). C57BL/6 mice fed EtOH-containing diet showed a mixed induction of hepatic classical (M1) and alternative (M2) macrophage markers. Since telomerase activation occurs at critical stages of myeloid and lymphoid cell activation, we herein investigated the role of telomerase reverse transcriptase (TERT), the determining factor of telomerase, in macrophage activation during ALD. In our study, TERT expression and telomerase activity (TA) were remarkably increased in liver tissue of EtOH-fed mice. Moreover, EtOH significantly up-regulated TERT in isolated KCs and RAW 264.7 cells and LPS induced TERT production in vitro. These data indicate that up-regulation of TERT may play a critical role in macrophages during ALD. Furthermore, loss- and gain-of-function studies suggested that TERT switched macrophages towards M1 phenotype by regulating NF-κB signaling, but had limited effect on M2 macrophages polarization in vitro. Additionally, PDTC, a chemical inhibitor of NF-κB, could dramatically down-regulate TERT expression and the hallmarks of M1 macrophages. Therefore, our study unveils the role of TERT in macrophage polarization and the cross-talk between TERT and p65, which may provide a possible explanation for the ethanol-mediated hepatic proinflammatory response and M1 macrophage polarization.

Cancer patient autonomy and quality of dying-a prospective nationwide survey in Taiwan.

BACKGROUND: Patient autonomy is an essential factor in the measurement of quality of dying. We aimed to conduct a study to investigate the factors affecting the autonomy of advanced cancer patients in Taiwan. METHODS: We conducted a prospective, multicenter study and recruited 574 advanced cancer patients from four inpatient hospice wards in Taiwan; their quality of dying was measured using the validated good death scale and the audit scale. Physician-assessed autonomy and the other scales were measured in a team conference by the primary care physician and the team 1 week after the patient had passed away. The good death scale was measured twice, once at admission and then after the patient had passed away for comparison. We measured factors affecting the improvement in quality of dying of these patients initially by applying multiple linear regression analysis. Then, taking physician-assessed autonomy as a dependent variable, we identified the factors that affected this variable. RESULTS: The good death score at admission, clear consciousness, number of admission days beyond 7, better physical care, higher physician-assessed autonomy, better emotional support, better communication, better continuity of life, and physician-reported rate of closure were factors affecting the quality of dying. Further analysis identified age (p = 0.031), consciousness (p = 0.01), and total good death scale score at death (p < 0.001) as determinants of physician-assessed autonomy. CONCLUSIONS: We concluded that physician-assessed autonomy would affect a good death and was highly correlated with age, consciousness level, and quality of dying at the end for advanced cancer patients in Taiwan.

Do-not-resuscitate orders and related factors among family surrogates of patients in the emergency department.

PURPOSE: The purpose of this study was to investigate the prevalence of do-not-resuscitate (DNR) orders and to identify relevant factors influencing the DNR decision-making process by patients' surrogates in the emergency department (ED). METHODS: A prospective, descriptive, and correlational research design was adopted. A total of 200 surrogates of cancer or non-cancer terminal patients, regardless of whether they signed a DNR order, were recruited as subjects after physicians of the emergency department explained the patient's conditions, advised on withholding medical treatment, and provided information on palliative care to all surrogates. RESULTS: Of the 200 surrogates, 23 % signed a DNR order for the patients. The demographic characteristics of patients and surrogates, the level of understanding of DNR orders, and factors of the DNR decision had no significant influence on the DNR decision. However, greater severity of disease (odds ratio (OR) = 1.38; 95 % confidence interval (CI) = 0.95-1.74), physician's initiative in discussing with the families (OR = 1.42; 95 % CI = 1.21-1.84), and longer length of hospital stay (OR = 1.06; 95 % CI = 1.03-1.08) were contributing factors affecting patient surrogates' DNR decisions. CONCLUSIONS: The findings of this study indicated that surrogates of patients who were more severe in disease condition, whose physicians initiated the discussion of palliative care, and who stayed longer in hospital were important factors affecting the surrogates' DNR decision-making. Therefore, early initiation of DNR discussions is suggested to improve end-of-life care.

Tumortropic monocyte-mediated delivery of echogenic polymer bubbles and therapeutic vesicles for chemotherapy of tumor hypoxia.

Overcoming limitations often experienced in nanomedicine delivery toward hypoxia regions of malignant tumors remains a great challenge. In this study, a promising modality for active hypoxia drug delivery was developed by adopting tumortropic monocytes/macrophages as a cellular vehicle for co-delivery of echogenic polymer/C5F12 bubbles and doxorubicin-loaded polymer vesicles. Through the remote-controlled focused ultrasound (FUS)-triggered drug liberation, therapeutic monocytes show prominent capability of inducing apoptosis of cancer cells. The in vivo and ex vivo fluorescence imaging shows appreciable accumulation of cell-mediated therapeutics in tumor as compared to the nanoparticle counterpart residing mostly in liver. Inhibition of tumor recurrence with γ-ray pre-irradiated Tramp-C1-bearing mice receiving therapeutic monocytes intravenously alongside the FUS activation at tumor site was significantly observed. Immunohistochemical examination of tumor sections confirms successful cellular transport of therapeutic payloads to hypoxic regions and pronounced cytotoxic action against hypoxic cells. Following the intravenous administration, the cellular-mediated therapeutics can penetrate easily to a depth beyond 150 µm from the nearest blood vessels within pre-irradiated tumor while nanoparticles are severely limited to a depth of ca 10-15 µm. This work demonstrates the great promise of cellular delivery to carry therapeutic payloads for improving chemotherapy in hypoxia by combining external trigger for drug release.

Charge and spin orderings in triangular t-J-V model with quarter filling: application to Na(0.5)CoO(2).

We investigated the ground state (GS) properties of the single-orbital t-J-V model in a quarter-filling two-dimensional triangular lattice with the slave-boson mean-field approach. We found that the charge ordering (CO) and spin ordering arising from the spin exchange interaction J competes with that from the inter-site Coulomb interaction V. For comparatively large J, the stable GS is insulating with striped CO and antiferromagnetic ordering, avoiding the homogeneous frustrated phase. Accompanying the insulating CO phase, a small insulating gap is opened. Within a reasonable J and V parameter region, our results are consistent with the recent neutron scattering experiments in Na(0.5)CoO(2), which possibly elucidate its CO, magnetic and other GS properties.