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1.
J Pharm Biomed Anal ; 252: 116489, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39357099

RESUMO

Significant pharmacokinetic variation occurs in critically ill patients, leading to underexposure to antibiotics and poor prognosis. In this study, we developed a simple, sensitive, and fast liquid chromatography tandem mass spectrometry (LCMS/MS) platform for the simultaneous quantification of 8 antibacterial and 2 antifungal drugs, which is optimally suited for clinically efficient, real-time therapeutic drug monitoring (TDM). Multiple reaction monitoring (MRM) mass spectrometry was used in this method, and samples were prepared via protein precipitation with methanol. Chromatographic separation was accomplished on a BGIU Column-U02 (2.1x50 mm, 3 µm), with six stable isotopes and one analog as an internal standard. The overall turnaround time of the assay was 5 minutes. All the drugs tested (piperacillin, cefoperazone, meropenem, levofloxacin, moxifloxacin, daptomycin, linezolid, vancomycin, fluconazole and voriconazole) were linear in the test concentration range (r ≥ 0.9900), the accuracy was 95 %-111 %, the precision variation coefficient was greater than or equal to 10 %, the lower limit of quantitation was 0.31-7.51 mg/L, and the coefficient of variation of the matrix factor was less than 10 %. The recovery rates ranged from 85 % to 115 %, and the antibiotics were stable at 4°C and -20°C for 6 days, with an offset of greater than or equal to 15 %. This method was successfully applied to routine TDM in 252 elderly critically ill patients.

2.
J Pharm Anal ; 14(9): 100962, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39350964

RESUMO

Benign prostatic hyperplasia (BPH) is one of the major chronic complications of type 2 diabetes mellitus (T2DM), and sex steroid hormones are common risk factors for the occurrence of T2DM and BPH. The profiles of sex steroid hormones are simultaneously quantified by LC-MS/MS in the clinical serum of patients, including simple BPH patients, newly diagnosed T2DM patients, T2DM complicated with BPH patients and matched healthy individuals. The G protein-coupled estrogen receptor (GPER) inhibitor G15, GPER knockdown lentivirus, the YAP1 inhibitor verteporfin, YAP1 knockdown/overexpression lentivirus, targeted metabolomics analysis, and Co-IP assays are used to investigate the molecular mechanisms of the disrupted sex steroid hormones homeostasis in the pathological process of T2DM complicated with BPH. The homeostasis of sex steroid hormone is disrupted in the serum of patients, accompanying with the proliferated prostatic epithelial cells (PECs). The sex steroid hormone metabolic profiles of T2DM patients complicated with BPH have the greatest degrees of separation from those of healthy individuals. Elevated 17ß-estradiol (E2) is the key contributor to the disrupted sex steroid hormone homeostasis, and is significantly positively related to the clinical characteristics of T2DM patients complicated with BPH. Activating GPER by E2 via Hippo-YAP1 signaling exacerbates high glucose (HG)-induced PECs proliferation through the formation of the YAP1-TEAD4 heterodimer. Knockdown or inhibition of GPER-mediated Hippo-YAP1 signaling suppresses PECs proliferation in HG and E2 co-treated BPH-1 cells. The anti-proliferative effects of verteporfin, an inhibitor of YAP1, are blocked by YAP1 overexpression in HG and E2 co-treated BPH-1 cells. Inactivating E2/GPER/Hippo/YAP1 signaling may be effective at delaying the progression of T2DM complicated with BPH by inhibiting PECs proliferation.

3.
Health Sci Rep ; 7(9): e70023, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39253351

RESUMO

Background and aims: Electrical stimulation (ES) has been shown to substantially enhance the quality of life by alleviating pain in patients with chronic wounds. This study aimed to observe the effects of low-frequency pulsed wearable ES at the common peroneal nerve on chronic refractory wounds of the lower limb. Methods: Forty-eight participants were randomly divided into control group (n = 24) and treatment group (n = 24) in this study. The control group received standard wound care (SWC) exclusively, whereas the treatment group was administered both SWC and the wearable low-frequency ES targeting the common peroneal nerve. Measurements of wound area, pain intensity, wound status, and quality of life scores were systematically recorded both before and after 4 weeks treatment. Results: After 4 weeks of intervention, the percentage area reduction was significantly higher in the treatment group compared to the control group (Z = -3.9, p < 0.001), and the healing rate of the treatment group was significantly higher than that of the control group (33% vs. 4%). Moreover, the visual Analog Scale for Pain score (ß = -0.65, p = 0.019), the Bates-Jensen Wound Assessment Tool score (p < 0.05), and the questionnaire on quality of life with chronic wounds (Wound-Qol) score (ß = -4.23, p = 0.003) were significantly decreased in the patients in the treatment group compared to the control group. Conclusion: The wearable low-frequency pulsed ES at the common peroneal nerve for the treatment of chronic refractory wounds showed significant improvement and were far superior compared to SWC. Future research should broaden its scope to include a diverse range of wound types and benefit from collaboration across multiple research centers.

4.
Nanomicro Lett ; 17(1): 6, 2024 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-39304540

RESUMO

Catalyst-support interaction plays a crucial role in improving the catalytic activity of oxygen evolution reaction (OER). Here we modulate the catalyst-support interaction in polyaniline-supported Ni3Fe oxide (Ni3Fe oxide/PANI) with a robust hetero-interface, which significantly improves oxygen evolution activities with an overpotential of 270 mV at 10 mA cm-2 and specific activity of 2.08 mA cmECSA-2 at overpotential of 300 mV, 3.84-fold that of Ni3Fe oxide. It is revealed that the catalyst-support interaction between Ni3Fe oxide and PANI support enhances the Ni-O covalency via the interfacial Ni-N bond, thus promoting the charge and mass transfer on Ni3Fe oxide. Considering the excellent activity and stability, rechargeable Zn-air batteries with optimum Ni3Fe oxide/PANI are assembled, delivering a low charge voltage of 1.95 V to cycle for 400 h at 10 mA cm-2. The regulation of the effect of catalyst-support interaction on catalytic activity provides new possibilities for the future design of highly efficient OER catalysts.

5.
Nanoscale ; 16(38): 18076-18085, 2024 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-39257275

RESUMO

Finding reservoir-rich and efficient electrocatalysts for the alkaline oxygen evolution reaction (OER) is crucial for further sustainable energy development. Despite the advantages of high earth abundance, easy availability, and tunable composition, transition-metal oxides are typically considered poor electrocatalysts for the OER. In this study, a composite P-doped CoMoO4-Co3O4 hollow nanocage is deliberately synthesized through a cation-exchange, pyrolysis, and phosphorization approach using an innovative self-template strategy with ZIF-67 as the sacrificial template. Hollow nanocages provide large surface areas and abundant active sites, enhancing electron transfer. Hybridization with other components increases the number of electrochemically reactive sites and optimizes the advantages of different element components. As a result, the P-CoMoO4-Co3O4 hollow nanocage catalyst demonstrates high OER performance, with an overpotential of 279 mV at a current density of 10 mA cm-2. Additionally, P-CoMoO4-Co3O4 catalysts exhibit good dispersibility and excellent long-term stability. Experimental findings and density functional theory (DFT) calculations indicate that the phosphorus-doping effect in various aspects contributes significantly to the superior catalytic activity of P-CoMoO4-Co3O4. This work provides a valuable method for designing cost-effective P doped Co-based bimetal oxide catalysts with outstanding OER performance for industrial applications.

6.
Cancer ; 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39257218

RESUMO

BACKGROUND: The objective of this study was to evaluate the efficacy of an in-person, small-group mammography video discussion (SMVD) intervention on mammography uptake among nonadherent Chinese American immigrant women. METHODS: Women (N = 956) were randomized into either an SMVD group, where Chinese-speaking community health workers (CHWs) used an effective, culturally appropriate video to discuss mammography, or a video-only group, which viewed the cultural video sent by mail. Outcomes were mammography uptake at 6 months and 21 months postintervention. RESULTS: Women in both groups increased mammography uptake, and an outcome analysis revealed no group differences (adjusted odds ratio [AOR], 1.18; 95% confidence interval [CI], .68-2.06). Overall, 61.2% of the SMVD group and 55.3% of the video-only group had at least one mammogram during the 21-month follow-up period. When considering attendance to the SMVD, SMVD attendees had higher mammography uptake than the video-only group (AOR, 1.51; 95% CI, 1.19-1.92), and SMVD nonattendees had lower mammography uptake than the video-only group (AOR, .33; 95% CI, .22-.50). CONCLUSIONS: Both intervention strategies were associated with increased mammography uptake. The authors observed that the increase in use was greater among women who participated in the SMVD session compared with those who viewed the cultural video only. Future research may explore a virtual SMVD intervention for higher session attendance and increased mammography uptake (ClinicalTrials.gov identifier NCT01292200).

7.
Asia Pac J Oncol Nurs ; 11(10): 100567, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39286531

RESUMO

Objective: Early detection and diagnosis of lymphedema are crucial for effective treatment and prevention of its progression. Normative-based diagnostic thresholds can enhance diagnostic accuracy in the absence of preoperative measurements. This study aimed to investigate preoperative inter-arm differences and the associated factors, as well as to determine normative-based thresholds for lymphedema in Chinese breast cancer patients. Methods: This study utilized baseline data from a large cohort of Chinese breast cancer patients. Bilateral arm circumferences were measured at the wrist and at 10 cm intervals proximally up to 40 cm. Arm volumes were calculated using the truncated cone formula. Paired t test, repeated measures analysis of variance, and regression analysis were performed. Results: A total of 1707 breast cancer patients were included. Paired t tests showed that the dominant arm circumferences and volumes were significantly larger than those of the nondominant arm (P < 0.001). Regression analysis and repeated measures analysis of variance revealed that hand dominance was the influencing factor of inter-arm differences (P < 0.05). Normative-based thresholds determined by two standard deviations above the mean inter-arm volume ratio were 1.057 for the dominant arm and 1.079 for the nondominant arm. Conclusions: The absolute and relative normative-based thresholds for Chinese breast cancer patients differed slightly from the commonly used diagnostic criteria and those reported in Western populations and among Chinese healthy women. The normal variability and asymmetry associated with arm dominance underscore the importance of preoperative baseline assessments. Implementing normative-based diagnostic thresholds can facilitate more accurate lymphedema diagnosis when preoperative measurements are unavailable. Trial registration: Registration No. ChiCTR2200057083.

8.
EClinicalMedicine ; 75: 102808, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39296944

RESUMO

Background: Unresectable Hepatocellular Carcinoma (uHCC) poses a substantial global health challenge, demanding innovative prognostic and therapeutic planning tools for improved patient management. The predominant treatment strategies include Transarterial chemoembolization (TACE) and hepatic arterial infusion chemotherapy (HAIC). Methods: Between January 2014 and November 2021, a total of 1725 uHCC patients [mean age, 52.8 ± 11.5 years; 1529 males] received preoperative CECT scans and were eligible for TACE or HAIC. Patients were assigned to one of the four cohorts according to their treatment, four transformer models (SELECTION) were trained and validated on each cohort; AUC was used to determine the prognostic performance of the trained models. Patients were stratified into high and low-risk groups based on the survival scores computed by SELECTION. The proposed AI-based treatment decision model (ATOM) utilizes survival scores to further inform final therapeutic recommendation. Findings: In this study, the training and validation sets included 1448 patients, with an additional 277 patients allocated to the external validation sets. The SELECTION model outperformed both clinical models and the ResNet approach in terms of AUC. Specifically, SELECTION-TACE and SELECTION-HAIC achieved AUCs of 0.761 (95% CI, 0.693-0.820) and 0.805 (95% CI, 0.707-0.881) respectively, in predicting ORR in their external validation cohorts. In predicting OS, SELECTION-TC and SELECTION-HC demonstrated AUCs of 0.736 (95% CI, 0.608-0.841) and 0.748 (95% CI, 0.599-0.865) respectively, in their external validation sets. SELECTION-derived survival scores effectively stratified patients into high and low-risk groups, showing significant differences in survival probabilities (P < 0.05 across all four cohorts). Additionally, the concordance between ATOM and clinician recommendations was associated with significantly higher response/survival rates in cases of agreement, particularly within the TACE, HAIC, and TC cohorts in the external validation sets (P < 0.05). Interpretation: ATOM was proposed based on SELECTION-derived survival scores, emerges as a promising tool to inform the selection among different intra-arterial interventional therapy techniques. Funding: This study received funding from the Beijing Municipal Natural Science Foundation, China (Z190024); the Key Program of the National Natural Science Foundation of China, China (81930119); The Science and Technology Planning Program of Beijing Municipal Science & Technology Commission and Administrative Commission of Zhongguancun Science Park, China (Z231100004823012); Tsinghua University Initiative Scientific Research Program of Precision Medicine, China (10001020108); and Institute for Intelligent Healthcare, Tsinghua University, China (041531001).

9.
Anal Chim Acta ; 1324: 343102, 2024 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-39218581

RESUMO

BACKGROUND: Hexavalent chromium (Cr (VI)) is highly carcinogenic to humans. Ascorbic acid (AA) deficiency can be hazardous to health. And the dual-effect fluorescence detection of them is an important research topic. Carbon dots (CDs) based on cellulose are excellent candidates for the fluorescence probes due to their low cost and environmental friendliness. But most of them exhibit shortwave emission, small Stokes shift and poor fluorescence performance, all of which limit their use. Therefore, there is an urgent need for cellulose CDs with longer emission wavelengths and larger Stokes shifts in dual-effect fluorescence detection of Cr (VI) and AA. RESULTS: Under optimal conditions (180 °C, 12 h), we prepared cellulose-based nitrogen-doped carbon dots (N-CDs) by a simple one-step hydrothermal process, which display longer emission wavelengths (ex: 370 nm, em: 510 nm), larger Stokes shifts (140 nm) and high fluorescence quantum yield (QY: 19.27 %). The continuous "turn-off" and "turn-off-on" fluorescence detection platforms were constructed based on the internal filtering effect (IFE) between Cr6+ and N-CDs, and Cr6+ reduced to Cr3+ by AA at pH = 6. The platform has been successfully simultaneous detect Cr (VI) and AA with a wide range of 0.01-40 µM and 0.1-100 µM. And the lowest limits of detection (LOD) are 0.0303 µM and 0.072 µM, respectively. In the presence of some other metals, non-metal ions and water-soluble acids in the fruits, this fluorescent platform can demonstrate a high level of interference immunity. SIGNIFICANCE AND NOVELTY: This represents the first yellow-green cellulose-based N-CDs with large Stokes shift for dual-effect detection of Cr (VI) and AA in real water samples and fresh fruits. The fluorescence detection platform has the advantage of low volume detection. Less than 2 mL of sample is required for testing and results are available in <5 min. This method is rare and supply a novel idea for the quantitative monitoring of Cr (VI) and AA.

10.
Artigo em Inglês | MEDLINE | ID: mdl-39239757

RESUMO

Human papillomavirus (HPV) is the most common sexually transmitted infection on U.S. college campuses. Although HPV vaccination is recommended through age 26, current efforts to improve vaccination rates have predominantly focused on adolescents. Consequently, vaccine uptake remains suboptimal among young adults. This represents a significant missed opportunity, as young adults face the highest risk for new HPV infections. To contextualize the factors impacting decision-making process for this vulnerable population, this study reports key themes that emerged from in-depth interviews with participants (N = 30) who had completed an online intervention study for HPV vaccination among college students. Twelve (40%) of the interviewees vaccinated after exposure to the intervention. Findings centered around empowerment among young adults as the facilitator to get the HPV vaccine: key themes emerged were (1) convenience is critical and empowering; (2) adulthood identity, marked by a heightened sense of autonomy, accountability, and responsibility for self/future self and others, is empowering; (3) equal access to health care and preventive resources is empowering, especially for participants with low socioeconomic status; and (4) accurate knowledge provided in the intervention destigmatized HPV vaccination to empower young adults to make informed decisions. Digital interventions with messages highlighting a newly gained autonomy, future-oriented self and social responsibility, inclusive and accurate knowledge, and providing navigation to improve access may enhance HPV vaccination among young adults.

11.
J Adv Nurs ; 2024 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-39239802

RESUMO

AIMS: This study aims to explore the practice of advance care planning (ACP) among Chinese oncology nurses and identify challenges influencing care provision. DESIGN: A sequential explanatory mixed-method design was employed, comprising a quantitative phase to assess communication practices, followed by a qualitative phase to explore the challenges faced in ACP. METHODS: The study employed convenience sampling, including 532 oncology nurses from seven hospitals in northern China. Quantitative data were collected through a cross-sectional survey and the ACP communication index from December 2021 to January 2022. The qualitative phase consisted of 19 interviews conducted between May and July 2022, which were thematically analysed to elucidate the challenges in ACP practices. RESULTS: Quantitative findings revealed a low frequency of ACP communication among Chinese oncology nurses. Qualitative analysis identified four themes: lack of optimal timing, passive engagement of patients or families, reluctance of healthcare professionals and unsupported policies. CONCLUSION: The study concluded that identified challenges compromise the effectiveness of ACP practices among Chinese oncology nurses. Inadequate communication, limited interdisciplinary collaboration and policy gaps contribute to nonstandardised ACP processes. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: The findings underscore the need for targeted interventions to enhance nurses' communication skills, foster interdisciplinary collaboration and provide policy support. Such interventions are pivotal to optimising end-of-life care in oncology settings and facilitating the integration of ACP into routine nursing practices. REPORTING METHODS: This study adhered to the Mixed Methods Article Reporting Standards. PATIENT OR PUBLIC CONTRIBUTION: No contributions from patients or the public were involved in this study.

12.
PLoS One ; 19(9): e0309138, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39325778

RESUMO

BACKGROUND: This study uses a randomized controlled trial (RCT) to test the health benefits of expressive writing that is culturally adapted for Chinese immigrant breast cancer survivors (BCSs) and to characterize how acculturation moderates the effects of expressive writing interventions. METHODS: We will recruit Chinese immigrant BCSs (N = 240) diagnosed with stage 0-III breast cancer and within 5 years of completion of primary treatment. Recruitment will occur primarily through community-based organizations and cancer registries. Participants will be randomly assigned either to a control condition to write about neutral topics or to one of two intervention conditions, self-regulation or self-cultivation, both of which aim to promote adaptive cognitive processes but differ in how they achieve this goal. The self-regulation intervention culturally adapts a Western expressive writing paradigm and incorporates emotional disclosure, whereas the self-cultivation intervention originates from Asian cultural values without disclosing emotions. Participants in all three conditions will be asked to write in their preferred language for three 30-minute sessions. The primary outcome will be quality of life (QOL) at the 6- and 12-month follow-ups, and the secondary outcomes will be perceived stress, stress biomarkers, and medical appointments for cancer-related morbidities. DISCUSSION: This project will be the first large RCT to test culturally based brief interventions to improve QOL and reduce stress among Chinese immigrant BCSs. This project is expected to address two important needs of Chinese immigrant BCSs: their unmet psychological needs and the lack of culturally competent mental health care for Chinese immigrant BCSs. The immediate product of this line of research will be empirically evaluated, culturally responsive interventions ready for dissemination to Chinese immigrant BCSs across the United States. CLINICALTRIALS.GOV IDENTIFIER: NCT04754412.


Assuntos
Neoplasias da Mama , Sobreviventes de Câncer , Emigrantes e Imigrantes , Qualidade de Vida , Redação , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Neoplasias da Mama/psicologia , Neoplasias da Mama/terapia , Neoplasias da Mama/etnologia , Sobreviventes de Câncer/psicologia , China/etnologia , População do Leste Asiático , Emigrantes e Imigrantes/psicologia , Ensaios Clínicos Controlados Aleatórios como Assunto
13.
Nat Commun ; 15(1): 8464, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39349471

RESUMO

The intracellular bacterial pathogen Legionella pneumophila utilizes the Dot/Icm system to translocate over 330 effectors into the host cytosol. These virulence factors modify a variety of cell processes, including pathways involved in cell death and survival, to promote bacterial proliferation. Here, we show that the effector LegK3 is a eukaryotic-like Ser/Thr kinase that functions to suppress host apoptosis. Mechanistically, LegK3 directly phosphorylates multiple caspases involved in apoptosis signaling, including Caspase-3, Caspase-7, and Caspase-9. LegK3-induced phosphorylation of these caspases occurs at serine (Ser29 in Caspase-3 and Ser199 in Caspase-7) or threonine (Thr102 in Caspase-9) residues located in the prodomain or interdomain linkers. These modifications interfere with the suitability of the caspases as the substrates of initiator caspases or upstream regulators without impacting their proteolytic activity. Collectively, our study reveals a novel strategy used by L. pneumophila to maintain the integrity of infected cells for its intracellular growth.


Assuntos
Apoptose , Proteínas de Bactérias , Caspases , Legionella pneumophila , Legionella pneumophila/patogenicidade , Legionella pneumophila/enzimologia , Fosforilação , Humanos , Caspases/metabolismo , Proteínas de Bactérias/metabolismo , Proteínas de Bactérias/genética , Animais , Interações Hospedeiro-Patógeno , Células HEK293 , Proteínas Serina-Treonina Quinases/metabolismo , Proteínas Serina-Treonina Quinases/genética , Doença dos Legionários/microbiologia , Doença dos Legionários/metabolismo , Camundongos , Caspase 7/metabolismo , Células HeLa , Caspase 3/metabolismo
14.
Support Care Cancer ; 32(9): 585, 2024 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-39134915

RESUMO

PURPOSE: Survivors of adolescent and young adult (AYA) cancer face significant psychological distress and encounter barriers accessing mental health care. However, limited research exists on psychological health among lesbian, gay, and bisexual (LGB) survivors of AYA cancer, particularly in comparison with heterosexual survivors and LGB individuals without a history of cancer. METHODS: Using the National Health Interview Survey (2013-2018), we identified LGB survivors of AYA cancer, LGB individuals without a history of cancer, and heterosexual survivors of AYA cancer. Sociodemographic, chronic health conditions, modifiable factors (such as smoking and alcohol use), and psychological outcomes were assessed using chi-square tests. Logistic regression models, adjusted for survey weights, evaluated the odds of psychological distress by cancer status after accounting for covariates. Interactions between variables and cancer status were explored. RESULTS: The study comprised 145 LGB survivors, 1450 LGB individuals without a history of cancer, and 1450 heterosexual survivors. Compared to heterosexual survivors, LGB survivors were more likely to report severe distress (aOR = 2.26, p = 0.021) and had higher odds of reporting a mental health care visit (aOR = 1.98, p = 0.003). Odds of severe distress (aOR = 1.36, p = 0.36) and reporting a mental health care visit (aOR = 1.27, p = 0.29) were similar between LGB survivors and LGB individuals without a history of cancer. While 47.8% of LGB survivors reported moderate/severe distress, only 29.7% reported a mental health care visit. CONCLUSION: A history of cancer during the AYA years is associated higher odds of severe psychological distress among LGB survivors compared to heterosexual survivors. However, many LGB survivors with psychological distress have not accessed mental health care.


Assuntos
Sobreviventes de Câncer , Angústia Psicológica , Minorias Sexuais e de Gênero , Humanos , Feminino , Masculino , Adulto Jovem , Adolescente , Sobreviventes de Câncer/psicologia , Sobreviventes de Câncer/estatística & dados numéricos , Minorias Sexuais e de Gênero/psicologia , Minorias Sexuais e de Gênero/estatística & dados numéricos , Adulto , Neoplasias/psicologia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Serviços de Saúde Mental/estatística & dados numéricos , Estresse Psicológico/epidemiologia
15.
Eur J Oncol Nurs ; 72: 102679, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39178752

RESUMO

PURPOSE: To analyze the impact of sarcopenia and obesity on overall survival (OS) in patients with head and neck cancer (HNC) receiving radiotherapy (RT). METHODS: This prospective longitudinal study recruited 494 patients using convenient sampling. Weight and body composition were assessed before RT (T1), and at the end of RT (T2) using bioelectrical impedance analysis (BIA). The appendicular skeletal mass index was used to define sarcopenia, while the body mass index and fat mass index were used to define obesity. Patient OS was followed and described using Kplan-Meier analysis. Cox proportional hazard regression was used to analyze influencing factors of OS. RESULTS: The median follow-up time was 26.2 months (IQR: 18.4-34.4 months). Multivariable models indicated that sarcopenia/obesity type assessed at T1 was not significantly associated with OS. Multivariable models involving body composition at T2 showed that age (P < 0.001), tumor site (P = 0.003), tumor stage (P = 0.024), and sarcopenia/obesity type (P = 0.040) were significantly associated with OS, while sarcopenic patients without obesity at T2 had worse OS. CONCLUSIONS: Patients with sarcopenia and no obesity at the end of RT might have worse OS. Healthcare professionals should enhance HNC patients' management during RT, helping them maintain a certain amount of muscle mass and fat mass to improve their survival.


Assuntos
Neoplasias de Cabeça e Pescoço , Obesidade , Sarcopenia , Humanos , Sarcopenia/mortalidade , Masculino , Neoplasias de Cabeça e Pescoço/radioterapia , Neoplasias de Cabeça e Pescoço/mortalidade , Neoplasias de Cabeça e Pescoço/complicações , Feminino , Pessoa de Meia-Idade , Estudos Longitudinais , Estudos Prospectivos , Idoso , Composição Corporal , Índice de Massa Corporal , Adulto , Modelos de Riscos Proporcionais , Análise de Sobrevida
16.
Orphanet J Rare Dis ; 19(1): 299, 2024 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-39148107

RESUMO

BACKGROUND: Sirolimus is increasingly utilized in treating diseases associated with mTOR pathway overactivation. Despite its potential, the lack of evidence regarding its long-term safety across all age groups, particularly in pediatric patients, has limited its further application. This study aims to assess the long-term safety of sirolimus, with a specific focus on its impact on growth patterns in pediatric patients. METHODS: This pooled analysis inlcudes two prospective cohort studies spanning 10 years, including 1,738 participants (aged 5 days to 69 years) diagnosed with tuberous sclerosis and/or lymphangioleiomyomatosis. All participants were mTOR inhibitor-naive and received 1 mg/m²/day of sirolimus, with dose adjustments during a two-week titration period to maintain trough blood concentrations between 5 and 10 ng/ml (maximum dose 2 mg). Indicators of physical growth, hematopoietic, liver, renal function, and blood lipid levels were all primary outcomes and were analyzed. The adverse events and related management were also recorded. RESULTS: Sirolimus administration did not lead to deviations from normal growth ranges, but higher doses exhibited a positive association with Z-scores exceeding 2 SD in height, weight, and BMI. Transient elevations in red blood cell and white blood cell counts, along with hyperlipidemia, were primarily observed within the first year of treatment. Other measured parameters remained largely unchanged, displaying only weak correlations with drug use. Stomatitis is the most common adverse event (920/1738, 52.9%). In adult females, menstrual disorders were observed in 48.5% (112/217). CONCLUSIONS: Sirolimus's long-term administration is not associated with adverse effects on children's physical growth pattern, nor significant alterations in hematopoietic, liver, renal function, or lipid levels. A potential dose-dependent influence on growth merits further exploration. TRIAL REGISTRATION: Pediatric patients: Chinese clinical trial registry, No. ChiCTR-OOB-15,006,535. Adult patients: ClinicalTrials, No. NCT03193892.


Assuntos
Sirolimo , Humanos , Sirolimo/efeitos adversos , Sirolimo/uso terapêutico , Criança , Feminino , Adolescente , Pré-Escolar , Adulto , Masculino , Lactente , Adulto Jovem , Pessoa de Meia-Idade , Recém-Nascido , Idoso , Esclerose Tuberosa/tratamento farmacológico , Linfangioleiomiomatose/tratamento farmacológico , Estudos Prospectivos
17.
Geriatr Nurs ; 59: 557-563, 2024 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-39154504

RESUMO

BACKGROUND: The viability of advance care planning (ACP) in cultures where discussing future desires is taboo is unclear, it is essential to examine the challenges faced by Chinese nurses lacking legal protection for ACP. AIMS: To comprehend Chinese oncology nurses' perceptions of serious illness conversation and ACP, and identify barriers to engagement. METHODS: A qualitative descriptive exploratory study involving semi-structured interviews with 13 experienced oncology nurses, analyzed using thematic analysis and critical incident technique, following the Consolidated Criteria for Reporting Qualitative Research (COREQ) guidelines. FINDINGS: Four themes emerged: Inadequate Competence Causes Patient Harm, Cultural Influences to Patient Autonomy, Psychological Tolerance Neglects Best Interests, and Systemic and Legal Uncertainties Impact Patient Rights. CONCLUSION: Policy changes supporting nurses in ACP implementation, a 'whole-system strategic approach' involving legislative changes, organizational support, and public awareness are crucial for optimizing ACP and meeting diverse patient needs.

19.
Shanghai Kou Qiang Yi Xue ; 33(3): 301-305, 2024 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-39104348

RESUMO

PURPOSE: To compare and analyze the orthodontic effects of micro-implant screw support and flat guide plate on excessive deep overbite of lower anterior teeth. METHODS: Eighty-two patients with excessive deep overbite of the lower anterior teeth who were treated from January to December 2022 were selected and randomly divided into two groups (41 in each group) by random number table method. Both groups were treated with straight wire arch orthodontic technology, and the anterior teeth were supported by micro-implant screws (micro-implant screw group) and flat guide plates (flat guide plate group), respectively. The effect of upper anterior tooth compression, changes in occlusal plane, and apical absorption were compared between the two groups. SPSS 25.0 software package was used for statistical analysis. RESULTS: There were no significant changes in SNA angle, SNB angle, ANB angle, U1-PP, U6-PP, and L6-MP before and after treatment between the two groups (P>0.05). L1-MP significantly increased in both groups after treatment than before treatment(P<0.05). There was no significant difference in bite opening, Spee curve depth, U1 depression, L1 depression, U6 elongation, L6 elongation and occlusal opening time between the two groups before and after treatment(P>0.05). The root apex absorption of the mandibular central incisors and lateral incisors in the micro-implant screw group was significantly lower than that in the flat guide plate group(P<0.05), while there was no significant difference in root apex absorption between the two groups of canines(P>0.05). CONCLUSIONS: Both micro-implant screw support and flat guide plate can effectively lower the mandibular anterior teeth in the treatment of deep overbite in adults, with good orthodontic effects. However, the latter can lead to increased root resorption.


Assuntos
Parafusos Ósseos , Sobremordida , Humanos , Sobremordida/terapia , Implantes Dentários , Mandíbula/cirurgia , Incisivo , Procedimentos de Ancoragem Ortodôntica/instrumentação , Procedimentos de Ancoragem Ortodôntica/métodos
20.
Adv Mater ; : e2407724, 2024 Aug 04.
Artigo em Inglês | MEDLINE | ID: mdl-39097943

RESUMO

All-solid-state lithium-sulfur batteries (ASSLSBs) have attracted intense interest due to their high theoretical energy density and intrinsic safety. However, constructing durable lithium (Li) metal anodes with high cycling efficiency in ASSLSBs remains challenging due to poor interface stability. Here, a compositionally stable, self-lithiated tin (Sn)-carbon (C) composite interlayer (LSCI) between Li anode and solid-state electrolyte (SSE), capable of homogenizing Li-ion transport across the interlayer, mitigating decomposition of SSE, and enhancing electrochemical/structural stability of interface, is developed for ASSLSBs. The LSCI-mediated Li metal anode enables stable Li plating/stripping over 7000 h without Li dendrite penetration. The ASSLSBs equipped with LSCI thus exhibit excellent cycling stability of over 300 cycles (capacity retention of ≈80%) under low applied pressure (<8 MPa) and demonstrate improved rate capability even at 3C. The enhanced electrochemical performance and corresponding insights of the designed LSCI broaden the spectrum of advanced interlayers for interface manipulation, advancing the practical application of ASSLSBs.

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