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1.
Artigo em Inglês | MEDLINE | ID: mdl-39164043

RESUMO

OBJECTIVES: Cancer pain is a prevalent and challenging symptom affecting a significant number of patients globally, with inadequate control remaining a substantial challenge despite advancements in pain management. Non-pharmacological interventions, including mindfulness-based approaches, have shown promise in alleviating cancer-related pain. This study aimed to explore the efficacy of a single session of 20-minute mindful breathing in reducing pain among patients with cancer. METHODS: A randomised controlled study was conducted at the University of Malaya Medical Centre, Malaysia, involving adult cancer inpatients with a pain score of ≥4/10. Participants were randomly assigned to a 20-minute mindful breathing intervention or a 20-minute supportive listening control group. Outcome measures included pain intensity, pain unpleasantness and Hospital Anxiety and Depression Scale score, assessed before and after the intervention. RESULTS: The 20-minute mindful breathing sessions demonstrated significant efficacy in reducing pain intensity, pain unpleasantness and anxiety compared with the control group. CONCLUSION: This research broadens the repertoire of cancer pain management by highlighting the rapid and holistic benefits of a single session of 20-minute mindful breathing. The findings suggest the potential integration of brief mindfulness exercises into routine cancer care to enhance pain management and overall well-being.

2.
Front Immunol ; 15: 1253072, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38846943

RESUMO

Background: Pancreatic ductal adenocarcinoma (PDAC) is one of the deadliest forms of cancer and peritoneal dissemination is one major cause for this poor prognosis. Exosomes have emerged as promising biomarkers for gastrointestinal cancers and can be found in all kinds of bodily fluids, also in peritoneal fluid (PF). This is a unique sample due to its closeness to gastrointestinal malignancies. The receptor tyrosine kinase-like orphan receptor 1 (ROR1) has been identified as a potential biomarker in human cancers and represents a promising target for an immunotherapy approach, which could be considered for future treatment strategies. Here we prospectively analyzed the exosomal surface protein ROR1 (exo-ROR1) in PF in localized PDAC patients (PER-) on the one hand and peritoneal disseminated tumor stages (PER+) on the other hand followed by the correlation of exo-ROR1 with clinical-pathological parameters. Methods: Exosomes were isolated from PF and plasma samples of non-cancerous (NC) (n = 15), chronic pancreatitis (CP) (n = 4), localized PDAC (PER-) (n = 18) and peritoneal disseminated PDAC (PER+) (n = 9) patients and the surface protein ROR1 was detected via FACS analysis. Additionally, soluble ROR1 in PF was analyzed. ROR1 expression in tissue was investigated using western blots (WB), qPCR, and immunohistochemistry (IHC). Exosome isolation was proven by Nano Tracking Analysis (NTA), WB, Transmission electron microscopy (TEM), and BCA protein assay. The results were correlated with clinical data and survival analysis was performed. Results: PDAC (PER+) patients have the highest exo-ROR1 values in PF and can be discriminated from NC (p <0.0001), PDAC (PER-) (p <0.0001), and CP (p = 0.0112). PDAC (PER-) can be discriminated from NC (p = 0.0003). In plasma, exo-ROR1 is not able to distinguish between the groups. While there is no expression of ROR1 in the exocrine pancreatic tissue, PDAC and peritoneal metastasis show expression of ROR1. High exo-ROR1 expression in PF is associated with lower overall survival (p = 0.0482). Conclusion: With exo-ROR1 in PF we found a promising diagnostic and prognostic biomarker possibly discriminating between NC, PDAC (PER-) and PDAC (PER+) and might shed light on future diagnostic and therapeutic concepts in PDAC.


Assuntos
Líquido Ascítico , Biomarcadores Tumorais , Carcinoma Ductal Pancreático , Exossomos , Neoplasias Pancreáticas , Receptores Órfãos Semelhantes a Receptor Tirosina Quinase , Humanos , Receptores Órfãos Semelhantes a Receptor Tirosina Quinase/metabolismo , Exossomos/metabolismo , Masculino , Líquido Ascítico/metabolismo , Neoplasias Pancreáticas/mortalidade , Neoplasias Pancreáticas/patologia , Neoplasias Pancreáticas/metabolismo , Feminino , Carcinoma Ductal Pancreático/mortalidade , Carcinoma Ductal Pancreático/patologia , Carcinoma Ductal Pancreático/metabolismo , Pessoa de Meia-Idade , Biomarcadores Tumorais/metabolismo , Prognóstico , Idoso , Neoplasias Peritoneais/secundário , Neoplasias Peritoneais/mortalidade , Neoplasias Peritoneais/metabolismo , Adulto , Estudos Prospectivos
3.
Cancers (Basel) ; 16(12)2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38927922

RESUMO

Gastrointestinal (GI) tumors pose a significant global health burden, necessitating the exploration of novel therapeutic approaches. Plasmacytoid dendritic cells (pDCs) play a crucial role in tumor immunity, exhibiting both anti-tumor and pro-tumor effects. This review aims to summarize the role of pDCs in different types of GI tumors and assess their potential as therapeutic targets. In gastric cancer, hepatocellular carcinoma, and intrahepatic cholangiocarcinoma, increased infiltration of pDCs was associated with a worse outcome, whereas in esophageal cancer, pancreatic cancer, and colorectal cancer, pDC infiltration improved the outcome. Initial animal studies of gastric cancer and hepatocellular carcinoma showed that pDCs could be a successful therapeutic target. In conclusion, pDCs play a multifaceted role in GI tumors, influencing both anti-tumor immunity and tumor progression. Further research is needed to optimize their clinical application and explore combinatorial approaches.

4.
Mol Cancer ; 23(1): 28, 2024 02 02.
Artigo em Inglês | MEDLINE | ID: mdl-38308296

RESUMO

BACKGROUND: Current diagnostics for the detection of pancreato-biliary cancers (PBCs) need to be optimized. We therefore propose that methylated cell-free DNA (cfDNA) derived from non-invasive liquid biopsies serves as a novel biomarker with the ability to discriminate pancreato-biliary cancers from non-cancer pancreatitis patients. METHODS: Differentially methylated regions (DMRs) from plasma cfDNA between PBCs, pancreatitis and clinical control samples conditions were identified by next-generation sequencing after enrichment using methyl-binding domains and database searches to generate a discriminatory panel for a hybridization and capture assay with subsequent targeted high throughput sequencing. RESULTS: The hybridization and capture panel, covering around 74 kb in total, was applied to sequence a cohort of 25 PBCs, 25 pancreatitis patients, 25 clinical controls, and seven cases of Intraductal Papillary Mucinous Neoplasia (IPMN). An unbiased machine learning approach identified the 50 most discriminatory methylation markers for the discrimination of PBC from pancreatitis and controls resulting in an AUROC of 0.85 and 0.88 for a training (n = 45) and a validation (n = 37) data set, respectively. The panel was also able to distinguish high grade from low grade IPMN samples. CONCLUSIONS: We present a proof of concept for a methylation biomarker panel with better performance and improved discriminatory power than the current clinical marker CA19-9 for the discrimination of pancreato-biliary cancers from non-cancerous pancreatitis patients and clinical controls. This workflow might be used in future diagnostics for the detection of precancerous lesions, e.g. the identification of high grade IPMNs vs. low grade IPMNs.


Assuntos
Carcinoma Ductal Pancreático , Ácidos Nucleicos Livres , Neoplasias Intraductais Pancreáticas , Neoplasias Pancreáticas , Pancreatite , Humanos , Biomarcadores Tumorais/genética , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/genética , Neoplasias Pancreáticas/patologia , Pancreatite/diagnóstico , Pancreatite/genética , Biópsia Líquida , Carcinoma Ductal Pancreático/patologia
5.
Clin Chem Lab Med ; 62(8): 1611-1617, 2024 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-38353169

RESUMO

OBJECTIVES: The storage of serum tumor markers (STM) at -18 °C for one year has been a legal requirement in France since 1999, but has been abolished in 2022. This raises the question of the relevance of maintaining these biobanks in terms of conditions of storage. These should only be implemented after validation; in order to maintain the integrity of the biological sample and must be controlled over time according to the laboratory's procedures. The aim of the study was to assess the suitability of storing 10 STMs by evaluating their stability after one year of storage at -18 °C. METHODS: A new immuno-enzymatic assay (A+1) was conducted on samples that had been stored at -18 °C for one year after an initial assay (A) of one of the following STMs: carcino-embryonic antigen (CEA), alpha-fetoprotein (AFP), carbohydrate antigen 125 (CA125), carbohydrate antigen 15-3 (CA15-3), carbohydrate antigen 19-9 (CA19-9), total (TPSA), and free (FPSA) prostate-specific antigen, calcitonin (CT), thyroglobulin (TG), and neuro-specific enolase (NSE). The results were confronted to four different permissible error sources. RESULTS: In total, 1148 A+1 assays were performed. A strong correlation between A+1 and A values was found for all analytes, but with a statistically significant reduction in the mean A+1 concentration compared to the mean A concentration in 7/10 STMs. The bias induced by conservation seems to be technically unsustainable if we rely on the repositories closest to the current analytical performances. CONCLUSIONS: These results support the discontinuation of mandatory STM biobank storage at -18 °C, which requires considerable technical time and organizational effort.


Assuntos
Biomarcadores Tumorais , Humanos , Biomarcadores Tumorais/sangue , Fatores de Tempo , Manejo de Espécimes/normas , Estabilidade Proteica
6.
Front Oncol ; 13: 1199195, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37465116

RESUMO

Immune checkpoint inhibitors cause rare but potentially fatal neuromuscular complications, leading to a concern to use these agents in cancer patients with pre-existing autoimmune or inflammatory neuromuscular diseases. We report two such patients with paraneoplastic dermatomyositis and "seronegative" paraneoplastic demyelinating neuropathy, respectively, who have been successfully treated with immune checkpoint inhibitor monotherapy as well as maintenance intravenous immunoglobulin. While controlling the paraneoplastic or autoimmune neuromuscular diseases, the use of intravenous immunoglobulin did not compromise the anti-cancer effect of immune checkpoint inhibitor.

7.
BMC Musculoskelet Disord ; 24(1): 405, 2023 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-37210475

RESUMO

BACKGROUND/PURPOSE: Impaired healing is a feared complication with devastating outcomes for each patient. Most studies focus on geriatric fracture fixation and assess well known risk factors such as infections. However, risk factors, others than infections, and impaired healing of proximal femur fractures in non-geriatric adults are marginally assessed. Therefore, this study aimed to identify non-infection related risk factors for impaired fracture healing of proximal femur fractures in non-geriatric trauma patients. METHODS: This study included non-geriatric patients (aged 69 years and younger) who were treated between 2013 and 2020 at one academic Level 1 trauma center due to a proximal femur fracture (PFF). Patients were stratified according to AO/OTA classification. Delayed union was defined as failed callus formation on 3 out of 4 cortices after 3 to 6 months. Nonunion was defined as lack of callus-formation after 6 months, material breakage, or requirement of revision surgery. Patient follow up was 12 months. RESULTS: This study included 150 patients. Delayed union was observed in 32 (21.3%) patients and nonunion with subsequent revision surgery occurred in 14 (9.3%). With an increasing fracture classification (31 A1 up to 31 A3 type fractures), there was a significantly higher rate of delayed union. Additionally, open reduction and internal fixation (ORIF) (OR 6.17, (95% CI 1.54 to 24.70, p ≤ 0.01)) and diabetes mellitus type II (DM) (OR 5.74, (95% CI 1.39 to 23.72, p = 0.016)), were independent risk factors for delayed union. The rate of nonunion was independent of fracture morphology, patient's characteristics or comorbidities. CONCLUSION: Increasing fracture complexity, ORIF and diabetes were found to be associated with delayed union of intertrochanteric femur fractures in non-geriatric patients. However, these factors were not associated with the development of nonunion.


Assuntos
Fraturas do Fêmur , Fraturas Proximais do Fêmur , Adulto , Humanos , Consolidação da Fratura , Fraturas do Fêmur/diagnóstico por imagem , Fraturas do Fêmur/epidemiologia , Fraturas do Fêmur/cirurgia , Fêmur , Fatores de Risco , Estudos Retrospectivos , Fixação Interna de Fraturas/efeitos adversos , Resultado do Tratamento
8.
Cancers (Basel) ; 15(7)2023 Mar 23.
Artigo em Inglês | MEDLINE | ID: mdl-37046585

RESUMO

Worldwide, gastrointestinal (GI) cancers account for a significant amount of cancer-related mortality. Tests that allow an early diagnosis could lead to an improvement in patient survival. Liquid biopsies (LBs) due to their non-invasive nature as well as low risk are the current focus of cancer research and could be a promising tool for early cancer detection. LB involves the sampling of any biological fluid (e.g., blood, urine, saliva) to enrich and analyze the tumor's biological material. LBs can detect tumor-associated components such as circulating tumor DNA (ctDNA), extracellular vesicles (EVs), and circulating tumor cells (CTCs). These components can reflect the status of the disease and can facilitate clinical decisions. LBs offer a unique and new way to assess cancers at all stages of treatment, from cancer screenings to prognosis to management of multidisciplinary therapies. In this review, we will provide insights into the current status of the various types of LBs enabling early detection and monitoring of GI cancers and their use in in vitro diagnostics.

9.
Cancers (Basel) ; 15(2)2023 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-36672313

RESUMO

Pancreatic ductal adenocarcinoma (PDAC) ranks among the most fatal cancer diseases, widely accepted to have the most dismal prognoses. Although immunotherapy has broadly revolutionized cancer treatment, its value in PDAC appears to be relatively low. Exhibiting protumoral effects, monocytes have recently been proposed as potential targets of such immunotherapeutic regimens. However, to date, the body of evidence on monocytes' role in PDAC is scarce. Therefore, we analyzed monocytes in the peripheral blood of 58 PDAC patients prior to surgery and compared them to healthy individuals. PDAC patients showed increased levels of monocytes when compared to healthy controls In addition, patients with perineural infiltration demonstrated a higher percentage of monocytes compared to non-infiltrating tumors and PDAC G3 was associated with higher monocyte levels than PDAC G2. Patients with monocyte levels > 5% were found to have an 8.9-fold increased risk for a G3 and perineural infiltrated PDAC resulting in poorer survival compared to patients with <5% monocyte levels. Furthermore, PDAC patients showed increased expressions of CD86 and CD11c and decreased expressions of PD-L1 on monocytes compared to healthy individuals. Finally, levels of monocytes correlated positively with concentrations of IL-6 and TNF-α in plasma of PDAC patients. Based on our findings, we propose monocytes as a novel prognostic biomarker. Large-scale studies are needed to further decipher the role of monocytes in PDAC and investigate their potential as therapeutic targets.

10.
Eye (Lond) ; 37(10): 2145-2150, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-36477728

RESUMO

OBJECTIVES: This study quantifies the effect of trabeculectomy on the rate of progression (RoP) of visual field (VF) damage utilising pre- and post-operative visual function as the outcome instead of surrogate outcomes of success. METHODS: Clinical and VF data from 199 sequential patients who underwent trabeculectomy between 2015 and 2016 were extracted from the network of sites of Moorfields Eye Hospital NHS Foundation Trust. Of these, we analysed 80 eyes of 74 patients who met our inclusion criteria of at least three reliable VFs before and after surgery (false positive rate <15%). The change in mean RoP (dB/year) was tested using point-wise sensitivity values through a mixed effect model with random effects on both intercepts and slopes. A broken-stick regression of sensitivity over time, with a breakpoint at the day of surgery, modelled the individual change in RoP. RESULTS: We analysed 10 [9,12] VFs per subject (Median [Interquartile Range]). At surgery, the age was 67 [57, 72] years, mean deviation was -10.84 [-14.7, -5.6] dB and the IOP was 18 [15, 20] mmHg. One year after surgery, the IOP was 10 [8,13] mmHg (p = 0.002). Mean RoP before surgery was -0.94 [-1.20, -0.69] dB/year (Mean [95% credible intervals]) and it was slowed down by 0.62 [0.26, 0.97] dB/year (p < 0.001) after surgery. CONCLUSIONS: Trabeculectomy leads to a significant reduction in the RoP of VF loss postoperatively.


Assuntos
Trabeculectomia , Campos Visuais , Humanos , Pressão Intraocular , Tonometria Ocular , Progressão da Doença , Estudos Retrospectivos
11.
BMJ Support Palliat Care ; 13(e2): e389-e396, 2023 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-34244182

RESUMO

CONTEXT: Numerous studies have shown that gratitude can reduce stress and improve quality of life. OBJECTIVE: Our study aimed to examine the effect of mindful gratitude journaling on suffering, psychological distress and quality of life of patients with advanced cancer. METHODS: We conducted a parallel-group, blinded, randomised controlled trial at the University of Malaya Medical Centre, Malaysia. Ninety-two adult patients with advanced cancer, and an overall suffering score ≥4/10 based on the Suffering Pictogram were recruited and randomly assigned to either a mindful gratitude journaling group (N=49) or a routine journaling group (N=43). RESULTS: After 1 week, there were significant reductions in the overall suffering score from the baseline in both the intervention group (mean difference in overall suffering score=-2.0, 95% CI=-2.7 to -1.4, t=-6.125, p=0.000) and the control group (mean difference in overall suffering score=-1.6, 95% CI=-2.3 to -0.8, t=-4.106, p=0.037). There were also significant improvements in the total Hospital Anxiety and Depression Scale score (mean difference=-3.4, 95% CI=-5.3 to -1.5, t=-3.525, p=0.000) and the total Functional Assessment of Chronic Illness Therapy-Spiritual Well-Being score (mean difference=7.3, 95% CI=1.5 to 13.1, t=2.460, p=0.014) in the intervention group after 7 days, but not in the control group. CONCLUSION: The results provide evidence that 7 days of mindful gratitude journaling could positively affect the state of suffering, psychological distress and quality of life of patients with advanced cancer. TRIAL REGISTRATION NUMBER: The trial was registered with the Australian and New Zealand Clinical Trials Registry (ACTRN1261800172191) and conducted in accordance with the Declaration of Helsinki.


Assuntos
Neoplasias , Angústia Psicológica , Adulto , Humanos , Qualidade de Vida , Austrália , Ansiedade , Neoplasias/psicologia
12.
Afr Health Sci ; 23(2): 81-87, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38223595

RESUMO

Background: Aflatoxin B1causes damage to the DNA by the alkylation of bases and P53 mutation. Exposure to this mycotoxin is associated with the development of liver cancer. Measures to reduce grain and cereal contamination have been a focus however, the effects of these measures are still lagging behind and exposure continues to occur even in populations at risk of developing liver cancer. Objective: To quantify aflatoxin B1 exposure in a population of HIV infected patients with and without HCC. Method: This was a cross-sectional study among 196 patients with HIV and or HCC. We evaluated the exposure to aflatoxin B1 using the Aflatoxin M1 metabolite by ELISA on urine samples. Results: A total of 196 participants consisting of 163 (83.2%) HIV positive and 28 (14.3%) HCC. Mean age is 46.64±10.8 years. The median aflatoxin (IQR) aflatoxin M1level is 177.3(112.5-272) pg/ml. Only 8(4.1%) of the participant had no exposure to aflatoxin B1. The median (IQR) aflatoxin for fibrosis score ≥ 13kpa (178.7(112.9-286.8) pg/ml) VS < 13kpa (173.5(107.9-250.4)), p = 0.046. Conclusion: There is high prevalence of aflatoxin B1 exposure in this population. Concerted efforts must be put in place to mitigate exposure because of the potential effects of short- and long-term exposure to aflatoxin.


Assuntos
Aflatoxinas , Carcinoma Hepatocelular , Infecções por HIV , Neoplasias Hepáticas , Humanos , Adulto , Pessoa de Meia-Idade , Carcinoma Hepatocelular/induzido quimicamente , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/genética , Aflatoxinas/toxicidade , Aflatoxinas/urina , Neoplasias Hepáticas/induzido quimicamente , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/genética , Aflatoxina B1/toxicidade , Aflatoxina B1/metabolismo , Nigéria/epidemiologia , Estudos Transversais , Infecções por HIV/epidemiologia
13.
Sci Rep ; 12(1): 22333, 2022 12 25.
Artigo em Inglês | MEDLINE | ID: mdl-36567356

RESUMO

The extent of elective nodal irradiation (ENI) in patients undergoing definitive chemoradiotherapy (dCRT) for esophageal squamous cell carcinoma (ESCC) remains unclear. The aim of this dosimetric study was to evaluate the extent of incidental nodal irradiation using modern radiation techniques. A planning target volume (PTV) was generated for 30 patients with node-negative esophageal carcinoma (13 cervical/upper third, 7 middle third, 10 lower third/abdomen). Thereby, no elective nodal irradiation (ENI) was intended. Both three-dimensional conformal radiotherapy (3D-CRT) and volumetric-modulated arc therapy (VMAT) treatment plans (50 Gy in 25 fractions) were calculated for all patients. Fifteen nodal stations were contoured according to the definitions of the AJCC and investigated in regard to dosimetric parameters. Compared to 3D-CRT, VMAT was associated with lower dose distribution to the organs at risk (lower Dmean, V20 and V30 for the lungs and lower Dmean and V30 for the heart). For both techniques, the median Dmean surpassed 40 Gy in 12 of 15 (80%) nodal stations. However, VMAT resulted in significantly lower Dmeans and equivalent uniform doses (EUD) compared to 3D-CRT for eight nodal stations (1L, 2L, 2R, 4L, 7, 8L, 10L, 15), while differences did not reach significance for seven nodal station (1R, 4R, 8U, 8M, 10R, 16). For dCRT of ESCC, the use of VMAT was associated with significantly lower median (incidental) doses to eight of 15 regional lymph node areas compared to 3D-CRT. However, given the small absolute differences, these differences probably do not impair (regional) tumor control rates.


Assuntos
Neoplasias Esofágicas , Carcinoma de Células Escamosas do Esôfago , Radioterapia Conformacional , Radioterapia de Intensidade Modulada , Humanos , Radioterapia de Intensidade Modulada/métodos , Neoplasias Esofágicas/radioterapia , Neoplasias Esofágicas/patologia , Dosagem Radioterapêutica , Carcinoma de Células Escamosas do Esôfago/terapia , Radioterapia Conformacional/métodos , Planejamento da Radioterapia Assistida por Computador/métodos
14.
BMC Geriatr ; 22(1): 990, 2022 12 22.
Artigo em Inglês | MEDLINE | ID: mdl-36544094

RESUMO

PURPOSE: Soft tissue injury and soft tissue injury as risk factors for nonunion following trochanteric femur fractures (TFF) are marginally investigated. The aim of this study was to identify risk factors for impaired fracture healing in geriatric trauma patients with TFF following surgical treatment with a femoral nail. METHODS: This retrospective cohort study included geriatric trauma patients (aged > 70 years) with TFF who were treated with femoral nailing. Fractures were classified according to AO/OTA. Nonunion was defined as lack of callus-formation after 6 months, material breakage, and requirement of revision surgery. Risk factors for nonunion included variables of clinical interest (injury pattern, demographics, comorbidities), as well as type of approach (open versus closed) and were assessed with uni- and multivariate regression analyses. RESULTS: This study included 225 geriatric trauma patients. Nonunion was significantly more frequently following AO/OTA 31A3 fractures (N = 10, 23.3%) compared with AO/OTA type 31A2 (N = 6, 6.9%) or AO/OTA 31A1 (N = 3, 3.2%, p < 0.001). Type 31A3 fractures had an increased risk for nonunion compared with type 31A1 (OR 10.3 95%CI 2.2 to 48.9, p = 0.003). Open reduction was not associated with increased risk for nonunion (OR 0.9, 95%CI 0.1 to 6.1. p = 0.942) as was not the use of cerclage (OR 1.0, 95%CI 0.2 to 6.5, p = 0.995). Factors such as osteoporosis, polytrauma or diabetes were not associated with delayed union or nonunion. CONCLUSION: The fracture morphology of TFF is an independent risk factor for nonunion in geriatric patients. The reduction technique is not associated with increased risk for nonunion, despite increased soft tissue damage following open reduction.


Assuntos
Fraturas do Fêmur , Fixação Intramedular de Fraturas , Fraturas do Quadril , Lesões dos Tecidos Moles , Humanos , Idoso , Estudos Retrospectivos , Fraturas do Quadril/epidemiologia , Fraturas do Quadril/cirurgia , Fixação Intramedular de Fraturas/efeitos adversos , Fixação Intramedular de Fraturas/métodos , Lesões dos Tecidos Moles/complicações , Resultado do Tratamento
15.
Int J Mol Sci ; 23(9)2022 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-35563553

RESUMO

Immunotherapy has become increasingly important in the treatment of colorectal cancer (CRC). Currently, CD73, also known as ecto-5'-nucleotidase (NT5E), has gained considerable interest as a potential therapeutic target. CD73 is one of the key enzymes catalyzing the conversion of extracellular ATP into adenosine, which in turn exerts potent immune suppressive effects. However, the role of CD73 expression on various cell types within the CRC tumor microenvironment remains unresolved. The expression of CD73 on various cell types has been described recently, but the role of CD73 on B-cells in CRC remains unclear. Therefore, we analyzed CD73 on B-cells, especially on tumor-infiltrating B-cells, in paired tumor and adjacent normal tissue samples from 62 eligible CRC patients. The highest expression of CD73 on tumor-infiltrating B-cells was identified on class-switched memory B-cells, followed by naive B-cells, whereas no CD73 expression was observed on plasmablasts. Clinicopathological correlation analysis revealed that higher CD73+ B-cells infiltration in the CRC tumors was associated with better overall survival. Moreover, metastasized patients showed a significantly decreased number of tumor-infiltrating CD73+ B-cells. Finally, neoadjuvant therapy correlated with reduced CD73+ B-cell numbers and CD73 expression on B-cells in the CRC tumors. As promising new immune therapies are being developed, the role of CD73+ B-cells and their subsets in the development of colorectal cancer should be further explored to find new therapeutic options.


Assuntos
5'-Nucleotidase , Neoplasias Colorretais , 5'-Nucleotidase/metabolismo , Antígenos CD20 , Contagem de Células , Humanos , Imunoterapia , Microambiente Tumoral
16.
Elife ; 112022 05 16.
Artigo em Inglês | MEDLINE | ID: mdl-35575460

RESUMO

Drosophila nicotinic acetylcholine receptors (nAChRs) are ligand-gated ion channels that represent a target for insecticides. Peptide neurotoxins are known to block nAChRs by binding to their target subunits, however, a better understanding of this mechanism is needed for effective insecticide design. To facilitate the analysis of nAChRs we used a CRISPR/Cas9 strategy to generate null alleles for all ten nAChR subunit genes in a common genetic background. We studied interactions of nAChR subunits with peptide neurotoxins by larval injections and styrene maleic acid lipid particles (SMALPs) pull-down assays. For the null alleles, we determined the effects of α-Bungarotoxin (α-Btx) and ω-Hexatoxin-Hv1a (Hv1a) administration, identifying potential receptor subunits implicated in the binding of these toxins. We employed pull-down assays to confirm α-Btx interactions with the Drosophila α5 (Dα5), Dα6, Dα7 subunits. Finally, we report the localisation of fluorescent tagged endogenous Dα6 during Drosophila CNS development. Taken together, this study elucidates native Drosophila nAChR subunit interactions with insecticidal peptide toxins and provides a resource for the in vivo analysis of insect nAChRs.


Assuntos
Inseticidas , Receptores Nicotínicos , Animais , Bungarotoxinas/metabolismo , Drosophila/metabolismo , Drosophila melanogaster/genética , Drosophila melanogaster/metabolismo , Inseticidas/toxicidade , Neurotoxinas , Peptídeos/metabolismo , Receptores Nicotínicos/genética , Receptores Nicotínicos/metabolismo
17.
J Gastroenterol Hepatol ; 37(7): 1367-1372, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35470471

RESUMO

BACKGROUND AND AIM: Percutaneous endoscopic gastrostomy (PEG) placement is recommended in patients with amyotrophic lateral sclerosis (ALS), but the procedure is considered high risk. In this study, we aimed to compare the outcome of ALS patients with and without PEG. The success of the procedure and complications of PEG insertion were also explored. METHODS: Patients with ALS who met the criteria for enteral feeding support were consecutively recruited. Patients who consented had PEG insertion using the modified technique of introducer method with transoral ultra-slim endoscopy. RESULTS: A total of 64 patients were recruited, of which 36 (56%) patients consented to PEG. The median age of all patients was 65 years and 59% were male. There was no difference in demographic and clinical characteristics between patients who agreed to a PEG and those who did not. The mortality rate at 6 and 12 months was lower in the PEG cohort compared with non-PEG, but this was not statistically significant (6 months: 28.6% vs 32.2%, P = 0.561; 12 months: 38.9% vs 50.0%, P = 0.374). Amongst the PEG cohort, 61% were stratified high risk and 31% moderate risk. Thirty-one percent of them required long-term home noninvasive ventilation. All patients (100%) underwent successful PEG insertion at single attempt using the modified approach. The complications reported over a period of 6 months were infected PEG site (17%), dislodged gastrostomy tube (14%), and minor bleeding (8%). CONCLUSION: In ALS patients with moderate to high risk of PEG insertion, the introducer technique utilizing ultra-slim endoscopy guidance was well tolerated and safe.


Assuntos
Esclerose Lateral Amiotrófica , Gastrostomia , Idoso , Esclerose Lateral Amiotrófica/complicações , Endoscopia Gastrointestinal/efeitos adversos , Endoscopia Gastrointestinal/métodos , Nutrição Enteral , Feminino , Gastrostomia/métodos , Humanos , Masculino , Estudos Retrospectivos
18.
Artigo em Inglês | MEDLINE | ID: mdl-35459688

RESUMO

OBJECTIVES: Suffering is common among patients with advanced cancer. The practice of mindfulness during patient care can potentially reduce suffering. We aimed to examine the efficacy of mindfulness-based supportive therapy (MBST) on reducing suffering in patients with advanced cancer. METHODS: We conducted a parallel-group, single-blinded, randomised controlled trial at the University of Malaya Medical Centre, Malaysia. Seventy-three patients with advanced cancer with an overall suffering score ≥4/10 based on the Suffering Pictogram were recruited and randomly assigned into either the MBST group (n=34) or the control group (n=39). RESULTS: There was a statistically significant reduction in the overall suffering score in the MBST group compared with the control group (U=432.5, median1=-2.0, median2=-1.0, z=-2.645, p=0.008). There was also significant improvement in the total Hospital Anxiety and Depression Scale score (U=483.5, median1=-4.0, median2=-3.0, z=-1.994, p=0.046), and the total Functional Assessment of Chronic Illness Therapy-Spiritual Well-Being score (U=252.0, median1=+14.5, median2=+5.0, z=-4.549, p=0.000) in the MBST group compared with the control group. CONCLUSIONS: The results provided evidence that the practice of MBST during patient care could promote positive psychosocial outcomes.

19.
Crit Care Med ; 50(4): 674-684, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-34582411

RESUMO

OBJECTIVES: Sepsis remains a highly lethal disease, whereas the precise reasons for death remain poorly understood. Prokineticin2 is a secreted protein that regulates diverse biological processes. Whether prokineticin2 is beneficial or deleterious to sepsis and the underlying mechanisms remain unknown. DESIGN: Prospective randomized animal investigation and in vitro studies. SETTING: Research laboratory at a medical university hospital. SUBJECTS: Prokineticin2 deficiency and wild-type C57BL/6 mice were used for in vivo studies; sepsis patients by Sepsis-3 definitions, patient controls, and healthy controls were used to obtain blood for in vitro studies. INTERVENTIONS: Prokineticin2 concentrations were measured and analyzed in human septic patients, patient controls, and healthy individuals. The effects of prokineticin2 on sepsis-related survival, bacterial burden, organ injury, and inflammation were assessed in an animal model of cecal ligation and puncture-induced polymicrobial sepsis. In vitro cell models were also used to study the role of prokineticin2 on antibacterial response of macrophages. MEASUREMENTS AND MAIN RESULTS: Prokineticin2 concentration is dramatically decreased in the patients with sepsis and septic shock compared with those of patient controls and healthy controls. Furthermore, the prokineticin2 concentration in these patients died of sepsis or septic shock is significantly lower than those survival patients with sepsis or septic shock, indicating the potential value of prokineticin2 in the diagnosis of sepsis and septic shock, as well as the potential value in predicting mortality in adult patients with sepsis and septic shock. In animal model, recombinant prokineticin2 administration protected against sepsis-related deaths in both heterozygous prokineticin2 deficient mice and wild-type mice and alleviated sepsis-induced multiple organ damage. In in vitro cell models, prokineticin2 enhanced the phagocytic and bactericidal functions of macrophage through signal transducers and activators of transcription 3 pathway which could be abolished by signal transducers and activators of transcription 3 inhibitors S3I-201. Depletion of macrophages reversed prokineticin2-mediated protection against polymicrobial sepsis. CONCLUSIONS: This study elucidated a previously unrecognized role of prokineticin2 in clinical diagnosis and treatment of sepsis. The proof-of-concept study determined a central role of prokineticin2 in alleviating sepsis-induced death by regulation of macrophage function, which presents a new strategy for sepsis immunotherapy.


Assuntos
Sepse , Choque Séptico , Animais , Modelos Animais de Doenças , Humanos , Macrófagos , Camundongos , Camundongos Endogâmicos C57BL , Estudos Prospectivos
20.
Am J Hosp Palliat Care ; 39(8): 986-995, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34525862

RESUMO

According to the WHO guideline, palliative care is an integral component of COVID-19 management. The relief of physical symptoms and the provision of psychosocial support should be practiced by all healthcare workers caring for COVID-19 patients. In this review, we aim to provide a simple outline on COVID-19, suffering in COVID-19, and the role of palliative care in COVID-19. We also introduce 3 principles of palliative care that can serve as a guide for all healthcare workers caring for COVID-19 patients, which are (1) good symptom control, (2) open and sensitive communication, and (3) caring for the whole team. The pandemic has brought immense suffering, fear and death to people everywhere. The knowledge, skills and experiences from palliative care could be used to relieve the suffering of COVID-19 patients.


Assuntos
COVID-19 , Enfermagem de Cuidados Paliativos na Terminalidade da Vida , Pessoal de Saúde/psicologia , Humanos , Cuidados Paliativos/psicologia , Pandemias
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