BMC Medicine最新文献

Background: Prospective trial evidence is lacking regarding the application of enhanced recovery after surgery (ERAS) in transvaginal pelvic floor reconstruction surgery among older patients. Our study aimed to investigate whether implementing the ERAS protocol could enhance post-operative recovery in this patient population.

Methods: Older patients undergoing elective transvaginal pelvic floor reconstruction surgery were randomly assigned to either the ERAS group or the conventional group. The primary outcome was post-operative length of stay (LOS). The secondary outcomes encompassed other post-operative recovery metrics, post-operative pain within 30 days, the occurrence of complications, the peri-operative blood test and cognitive function.

Results: A cohort of 100 patients was enrolled. Implementation of the ERAS protocol significantly reduced the duration of post-operative LOS (74.00 (69.00, 96.00) vs. 65.00 (59.00, 78.25) h, P < 0.01). Additionally, the ERAS protocol significantly reduced the duration of the first oral intake post-operatively (5.00 (2.50, 7.00) vs. 3.00 (2.00, 4.00) h, P = 0.01), and reduced rest and movement-related pain within 48 h post-operatively, effects that persisted through the 7-day follow-up period. It also shortened the duration of post-operative laryngeal mask airway support and promoted opioid-sparing. Moreover, the incidence and severity of post-operative nausea and vomiting (PONV) were significantly lower in the ERAS group compared to the conventional group at 12 h post-operatively.

Conclusions: Implementation of the ERAS protocol can expedite post-operative recovery in older patients undergoing transvaginal pelvic floor reconstruction surgery, achieve opioid-sparing, alleviate pain post-operatively, and decrease the incidence of complications.

Trial registration: This study was retrospectively registered with the Chinese Clinical Trial Registry (registration number: ChiCTR2400084608). The date of first registration was 21/05/2024.

Background: Hospitals fulfill an important exemplary role in promoting health and well-being. It is therefore crucial to have a supportive food environment that stimulates healthy and sustainable food choices of patients, staff, and visitors. This qualitative study aimed to identify factors influencing the implementation of long-lasting actions to enhance the healthiness and sustainability of the food environment in the hospital setting in the Netherlands, from the perspective of different stakeholders.

Methods: Semi-structured interviews were conducted in hospitals realizing a healthy and sustainable food environment. Verbatim transcripts were thematically analyzed, guided by the Consolidated Framework for Implementation Research. Data were organized and interpreted per theme as well as stakeholder group.

Results: In three hospitals, 29 semi-structured interviews were conducted with 30 stakeholders from a wide spectrum of stakeholder groups (i.e., facility professionals, healthcare professionals, project coordinators, and board of directors). Identified themes and subthemes were: 1 the outer setting, with momentum for change, government-established policies and guidelines, collaboration and networks outside the hospital, and caterers' and suppliers' food offerings, interests, and contracts; 2 the innovation domain, with familiarity and compliance with the TEH program; 3 support at all levels, achieving organizational buy-in with communication as a strategy, and end user interests; 4 the inner setting, with key priority in policy and having a vision, available resources, infrastructure within the hospital, ambassadors, and gradual process with continuous effort; and 5 the individual domain with personal drive.

Conclusions: The results revealed an interplay of perceived factors that influence the enhancement of a healthy and sustainable food environment and underscored the importance of addressing various facilitators and barriers across multiple domains within and outside the hospital setting. To ensure successful integration of a healthy and sustainable food environment in hospitals, throughout the entire organization it is crucial to engage diverse stakeholders at all levels and address their barriers with tailored implementation strategies. We suggest verification of our findings in more hospitals.

Background: Obstructive sleep apnea (OSA) is linked to brain alterations, but the specific regions affected and the causal associations between these changes remain unclear.

Methods: We studied 20 pairs of age-, sex-, BMI-, and education- matched OSA patients and healthy controls using multimodal magnetic resonance imaging (MRI) from August 2019 to February 2020. Additionally, large-scale Mendelian randomization analyses were performed using genome-wide association study (GWAS) data on OSA and 3935 brain imaging-derived phenotypes (IDPs), assessed in up to 33,224 individuals between December 2023 and March 2024, to explore potential genetic causality between OSA and alterations in whole brain structure and function.

Results: In the cohort study, OSA patients exhibited significantly lower fractional amplitude of low-frequency fluctuation and regional homogeneity in the right posterior cerebellar lobe and bilateral superior and middle frontal gyrus, while showing higher levels in the left occipital lobe and left posterior central gyrus. Decreased fractional anisotropy (FA) but increased apparent diffusion coefficient (ADC) was shown in the bilateral superior longitudinal fasciculus. According to the results of Affiliation file 2: table s6, it is the ADC value of right superior longitudinal fasciculus was shown a positive correlation with the lowest oxygen saturation. In the Mendelian randomization analyses, the area of left inferior temporal sulcus (OR: 0.89; 95% CI: 0.82-0.96), rfMRI connectivity ICA100 edge 893 (OR: 0.88; 95% CI: 0.82-0.96), ICA100 edge 951 (OR: 0.89; 95% CI: 0.82-0.97), and ICA100 edge 1213 (OR: 0.89; 95% CI: 0.82-0.96) were significantly decreased in OSA. Conversely, mean thickness of G-front-inf-Triangul in right hemisphere (OR: 1.14; 95% CI: 1.05-1.23), mean orientation dispersion index in right tapetum (OR: 1.13; 95% CI: 1.04-1.23), and rfMRI connectivity ICA100 edge 258 (OR: 1.13; 95% CI: 1.04-1.22) showed opposite results.

Conclusions: Nerve fiber damage and imbalances in neuronal activity across multiple brain regions caused by hypoxia, particularly the frontal lobe, underlie the structural and the functional connectivity impairments in OSA.

Background: Mechanisms underlying the association of life-course adiposity with incident hypertension in adulthood have not been comprehensively investigated. In this study, we aimed to investigate the potential biochemical and metabolomic mechanisms underlying the association between adiposity and incident hypertension.

Methods: A total of 180,527 participants from the UK Biobank aged 37 to 73 years were included. Associations of childhood body size or adulthood adiposity status as well as child-adult weight status change with incident adulthood hypertension were estimated by multivariate Cox proportional regression models.

Results: Participants with childhood thinner body size and adulthood obesity had the highest risk of incident hypertension (hazard ratio, HR = 3.09, 95% CI = 2.88-3.32) compared with those with "average → normal" pattern, followed by those with "average → obese" pattern (HR = 2.45, 95% CI = 2.31-2.61) and "plumper → obese" pattern (HR = 2.82, 95% CI = 2.62-3.02). Of note, those with "plumper → normal" pattern (HR = 1.11, 95% CI = 1.00-1.23) and "thinner → normal" pattern (HR = 1.17, 95% CI = 1.10-1.24) had the second and third lowest risk of incident hypertension. Adulthood overweight (mediation proportion: 58.7%, 95% CI: 40.4-74.8%) or obesity (mediation proportion = 46.7%, 95% CI: 29.4-64.9%) largely mediated the association between childhood plumper body size and hypertension. The association between adiposity and hypertension was mediated by biochemical indices (e.g., liver function, immunometabolism) and metabolites (e.g., alanine aminotransferase, apolipoprotein A) (mediation proportions ranging from 3.2 to 23.4%).

Conclusions: Thinner or plumper body size in childhood increases the risk of incident adulthood hypertension, and adulthood adiposity partly mediated this association, suggesting the importance of maintaining normal weight across the life course. Several biochemical indices and metabolites mediated these associations providing clues to underlying biological mechanisms.

Background: Intermediate phenotypes, such as characteristic neuroimaging patterns, offer unique insights into the genetic and stress-related underpinnings of neuropsychiatric disorders like depression. This study aimed to identify neuroimaging intermediate phenotypes associated with depression, bridging etiological factors to behavioral manifestations and connecting insights from animal models to diverse clinical populations.

Methods: We analyzed datasets from both rodents and humans. The rodent studies included a genetic model (P11 knockout) and an environmental stress model (chronic unpredictable mild stress), while the human data comprised 748 participants from three cohorts. Using the amplitude of low-frequency fluctuations, we identified neuroimaging patterns in rodent models. We then applied a machine-learning approach to cluster neuroimaging subtypes of depression. To assess the genetic predispositions and stress-related changes associated with these subtypes, we analyzed genotype and metabolite data. Linear regression was employed to determine which neuroimaging features predicted core depression symptoms across species.

Results: The genetic and environmental stress models exhibited distinct neuroimaging patterns in subcortical and sensorimotor regions. Consistent patterns emerged in two neuroimaging subtypes identified across three independent depressed cohorts. The subtype resembling P11 knockout demonstrated higher genetic susceptibility, with enriched expression of risk genes in brain tissues and abnormal metabolites linked to tryptophan metabolism. In contrast, the stress animal-like subtype did not show changes in genetic risk scores but exhibited enriched risk gene expression in somatic and endocrine tissues, along with mitochondrial dysfunction in the antioxidant stress system. Notably, these distinct subcortical-sensorimotor neuroimaging patterns predicted anhedonia, a core symptom of depression, in both rodent models and depressed subtypes.

Conclusions: This cross-species validation suggests that these neuroimaging patterns may serve as robust intermediate phenotypes, linking etiology to anhedonia and facilitating the translation of findings from animal models to humans with depression and other psychiatric disorders.

Background: The clinical phenotypes of myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) have been found to overlap with several other diseases. The new criteria proposed in 2023 were designed to better identify the disease but require validation across various populations to ascertain its clinical utility. We aimed to investigate the diagnostic performance in phenotypically diverse patients.

Methods: This multicenter study retrospectively included adult and pediatric patients who were hospitalized for a first suspected demyelinating event and tested positive for MOG immunoglobulin G (IgG) during the acute phase. The 2023 Lancet Neurology criteria were assessed against the benchmark of empirical clinical diagnosis, and the 2018 JAMA Neurology and Journal of Neuroinflammation criteria were also evaluated for comparative analysis.

Results: Among the 291 eligible patients (82 adults, 209 children), 282 (96.9%) were clinically diagnosed as definite MOGAD (77 adults, 205 children), while 262 (90.0%) fulfilled the 2023 diagnostic criteria (78 adults, 184 children). A total of 265 patients met the criteria for core clinical demyelinating events, and 76 (26.1%) had serum clear positive MOG-IgG (≥ 1:100). The sensitivity of the 2023 criteria was 0.91 (adults vs. children = 0.97 vs. 0.89), the specificity was 0.56 (adults vs. children = 0.40 vs. 0.75), positive likelihood ratio was 2.06 (adults vs. children = 1.62 vs. 3.57), and negative likelihood ratio (NLR) was 0.15 (adults vs. children = 0.06 vs. 0.14). Additionally, 264 and 256 cases were classified as definite MOGAD by the 2018 JAMA Neurology and Journal of Neuroinflammation criteria, respectively. Compared to the 2023 diagnostic criteria, the 2018 JAMA Neurology criteria demonstrated similar diagnostic performance. However, the 2018 Journal of Neuroinflammation criteria exhibited comparable sensitivity (0.92, adults vs. children = 0.96 vs. 0.89), higher specificity (1.00, adults vs. children = 1.00 vs. 1.00) and better NLR (0.09, adults vs. children = 0.04 vs. 0.11).

Conclusions: The 2023 criteria demonstrated good sensitivity in adult and pediatric patients in China yet modest specificity. Close follow-up is needed for patients with atypical phenotypes but high-titer MOG-IgG to avoid underdiagnosis.

Background: Esophageal squamous cell carcinoma (ESCC) is often diagnosed at an advanced stage due to the lack of non-invasive early detection tools, which significantly impacts patient prognosis. Given that glycosylation alterations especially high sialylation and fucosylation, frequently occur during cellular malignant transformation, but their roles are not elucidated. We examined alterations in disease-specific glycosylated extracellular vesicles (EVs)-derived miRNAs in the serum of ESCC patients, evaluating their utility as diagnostic biomarkers.

Methods: A total of 371 ESCC and 303 healthy controls (HCs) were recruited in this multi-stage, multicentre case-control study. Fucosylated (Fuc-) and sialylated (Sia-) EVs were isolated utilizing Lentil lectin (LCA) and wheat germ lectin (WGA)-coated magnetic beads, respectively. The glycosylated EVs-derived miRNAs-based signature (Riskscore^Fuc-&Sia-) was established through logistic regression in a training cohort and subsequently validated in an internal and an external multicentre cohort.

Results: The Riskscore^Fuc-&Sia- effectively identified ESCC across all stages, demonstrating high AUC values in training (0.980), internal validation (0.957), and external multicentre validation (0.973) cohorts, markedly higher than carcinoembryonic antigen (CEA) (AUC = 0.769, training cohort; AUC = 0.749, internal validation cohort; AUC = 0.765, external validation cohort). Notably, this score exhibited robust accuracy in detecting CEA (-) ESCC cases (CEA < 5 ng/ml) (AUC = 0.974, training & internal cohort; AUC = 0.973, external multicentre validation cohort). Additionally, it displayed strong efficacy in differentiating early-stage ESCC patients (AUC = 0.982, training cohort; AUC = 0.977, external multicentre validation cohort).

Conclusions: Our study illustrates the effectiveness of glycosylated EVs capture strategy for isolating tumour-specific EVs. The unique glycosylated EVs-derived miRNAs-based signature shows the optimal potential as a biomarker for early detection of ESCC.

Background: A new circulating biomarker superior to carbohydrate antigen 19-9 (CA19-9) is needed for diagnosing pancreatobiliary cancer (PBca). The aim of this study was to identify serum microRNA (miRNA) signatures comprising reproducible and disease-related miRNAs.

Methods: This multicenter study involved patients with treatment-naïve PBca and healthy participants. The optimized serum processing conditions were evaluated using t-distributed stochastic neighbor embedding (t-SNE) visualization. Serum miRNA candidates for disease association were selected using weighted gene coexpression network analysis (WGCNA). A miRNA signature combining multiple serum miRNAs was tested in exploratory, validation, and independent validation sets. The synthesis and secretion of diagnostic miRNAs were evaluated using human pancreatic cancer cells.

Results: In total, 284 (150 healthy and 134 PBca) of 827 serum samples were processed within 2 h of blood collection before freezing, distributed in the same area as that in the t-SNE map, and assigned to an exploratory set. The 193 optimized samples were assigned to either the validation (50 healthy, 47 PBca) or independent validation (50 healthy, 46 PBca) set. Index-1, a combination of five serum miRNAs (hsa-miR-1343-5p, hsa-miR-4632-5p, hsa-miR-4665-5p, hsa-miR-665, and hsa-miR-6803-5p) with disease association in WGCNA, showed a sensitivity and specificity of > 80% and an AUC outperforming that of CA19-9 in the exploratory, validation, and independent validation sets. The AUC of Index-1 was superior to that of CA19-9 (0.856 vs. 0.649, p = 0.038) for detecting T1 tumors. miR-665, a component of Index-1, was expressed in human pancreatic cancer cells, and its transfection inhibited cell growth.

Conclusions: The serum miRNA signature Index-1 is useful for detecting PBca and could facilitate the early diagnosis of PBca. These findings can help improve clinical PBca detection by providing an optimized biomarker that overcomes the limitations of the current standard.

Background: Cervical cancer is a significant health issue, especially in low- and middle-income countries like India, where it ranks fourth among women. The Human papillomavirus (HPV) vaccination, a vital preventive measure, has suboptimal uptake among nursing students. We aimed to assess the level of knowledge, attitudes, willingness, and reasons for non-uptake of HPV vaccination among nursing students.

Methods: A descriptive cross-sectional study was conducted from April to June 2023, using a total enumeration method. Data were collected from 313 nursing students using a validated questionnaire covering sociodemographic information, knowledge, attitudes, and reasons for non-uptake of HPV vaccination. Statistical analysis was performed using SPSS version 26.0. Descriptive statistics summarized the data, while binary and multivariable logistic regression analyses identified factors associated with knowledge, attitude, and willingness for HPV vaccination.

Results: The mean age of the students was 20.98 ± 2.38 years, with the majority being females (81.2%) and unmarried (93.0%). About half of the participants demonstrated moderate knowledge (52.4%) and negative attitudes (50.1%) towards HPV vaccination, with none having received the vaccine. Female students had 4.24 times the odds of having good knowledge (AOR = 4.24, 95% CI = 1.66-10.80), while those pursuing a bachelor's degree exhibited 2.70 times the odds of good knowledge (AOR = 2.70, 95% CI = 1.40-5.21). In contrast, first-year students had 0.30 times the odds of having good knowledge (AOR = 0.30, 95% CI = 0.11-0.79) but displayed 4.69 times the odds of having a positive attitude (AOR = 4.69, 95% CI = 1.92-11.41). Additionally, Hindu students had 2.44 times the odds of being willing to receive the vaccine (AOR = 2.44, 95% CI = 1.15-5.20). Most participants expressed willingness to receive the vaccine (62.0%), citing reasons such as not being sexually active (35.8%) and needing more information (18.2%) for non-uptake of the vaccine.

Conclusions: The study highlights gaps in knowledge and negative attitudes towards HPV vaccination among nursing students. Targeted educational interventions and policy initiatives are essential to improve awareness, promote positive attitudes, and increase HPV vaccination uptake among nursing students.