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1.
BMJ Open Ophthalmol ; 9(1)2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39306331

RESUMO

OBJECTIVE: To determine the agreement between measurements of accommodative amplitude (AoA) in children using a specialised accommodative rule and measurments without it. METHODS: A total of 502 children underwent optometric examinations, including the measurement of visual acuity, objective and subjective refraction. AoA measurements were done with and without the Berens accommodative rule. The measurements of AoA were conducted monocularly using a -4 D lens. A fixation stick containing English letters equivalent to 20/30 visual acuity and a long millimetre ruler was used to measure AoA without the accommodative rule. This measurement was performed by the two trained examiners. The agreement between these methods was reported by 95% limits of agreement (LoA) and interclass correlation coefficient (ICC). RESULTS: The mean age of the participants was 11.7±1.3 years (range: 9-15 years) and 52.4% were male. The mean AoA with and without the accommodative rule was 20.02±6.02 D and 22.46±6.32 D, respectively. The 95% LoA between the two methods was -12.5 to 7.5 D, and the ICC was 0.67 (95% CI 0.63 to 0.70). The 95% LoA was narrower in higher age groups and males compared with females (18.92 vs 20.87). The 95% LoA was narrower in hyperopes (16.83 D) compared with emmetropes (18.37 D) and myopes (18.27 D). The agreement was not constant and decreased in higher values of AoA. CONCLUSION: There is a poor and non-constant agreement between the measurements of the AoA with and without the accommodative rule. The mean AoA was 2.5 D lower with using the accommodative rule.


Assuntos
Acomodação Ocular , Refração Ocular , Acuidade Visual , Humanos , Acomodação Ocular/fisiologia , Criança , Masculino , Feminino , Adolescente , Acuidade Visual/fisiologia , Refração Ocular/fisiologia , Testes Visuais/métodos , Erros de Refração/diagnóstico , Erros de Refração/fisiopatologia , Optometria/métodos , Reprodutibilidade dos Testes
2.
JMIR Public Health Surveill ; 10: e62952, 2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39302344

RESUMO

Background: Assault weapon and large-capacity magazine bans are potential tools for policy makers to prevent public mass shootings. However, the efficacy of these bans is a continual source of debate. In an earlier study, we estimated the impact of the Federal Assault Weapons Ban (FAWB) on the number of public mass shooting events in the United States. This study provides an updated assessment with 3 additional years of firearm surveillance data to characterize the longer-term effects. Objective: This study aims to estimate the impact of the FAWB on trends in public mass shootings from 1966 to 2022. Methods: We used linear regression to estimate the impact of the FAWB on the 4-year simple moving average of annual public mass shootings, defined by events with 4 or more deaths in 24 hours, not including the perpetrator. The study period spans 1966 to 2022. The model includes indicator variables for both the FAWB period (1995-2004) and the period after its removal (2005-2022). These indicators were interacted with a linear time trend. Estimates were controlled for the national homicide rate. After estimation, the model provided counterfactual estimates of public mass shootings if the FAWB was never imposed and if the FAWB remained in place. Results: The overall upward trajectory in the number of public mass shootings substantially fell while the FAWB was in place. These trends are specific to events in which the perpetrator used an assault weapon or large-capacity magazine. Point estimates suggest the FAWB prevented up to 5 public mass shootings while the ban was active. A continuation of the FAWB and large-capacity magazine ban would have prevented up to 38 public mass shootings, but the CIs become wider as time moves further away from the period of the FAWB. Conclusions: The FAWB, which included a ban on large-capacity magazines, was associated with fewer public mass shooting events, fatalities, and nonfatal gun injuries. Gun control legislation is an important public health tool in the prevention of public mass shootings.


Assuntos
Armas de Fogo , Incidentes com Feridos em Massa , Humanos , Estados Unidos/epidemiologia , Armas de Fogo/legislação & jurisprudência , Armas de Fogo/estatística & dados numéricos , Incidentes com Feridos em Massa/estatística & dados numéricos , Ferimentos por Arma de Fogo/epidemiologia , Ferimentos por Arma de Fogo/prevenção & controle , Armas/estatística & dados numéricos , Armas/legislação & jurisprudência , Violência/estatística & dados numéricos , Violência/tendências , Violência/prevenção & controle , Violência/legislação & jurisprudência , Homicídio/estatística & dados numéricos , Homicídio/tendências , Eventos de Tiroteio em Massa
3.
Acta Diabetol ; 2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39302468

RESUMO

BACKGROUND: Considering the impact of adipokines on metabolic syndrome-related disorders and even chronic illnesses, it would appear vital to look for efficient treatments for these variables. The goal of this study was to thoroughly examine how the ketogenic diet (KD) affects adipokines. METHODS: Using standard keywords, the databases Scopus, PubMed/Medline, Web of Science, Cochrane, and Embase were searched to find all controlled trials looking into how KD affected adipokines (leptin, adiponectin, and ghrelin). By using a random-effects model analysis, pooled weighted mean difference and 95% confidence intervals were obtained. RESULTS: This article featured twenty-two studies. The combined results demonstrated that, as compared to the control group, leptin levels in all populations are significantly lower when KD is adhered to (WMD: - 0.14 ng/ml, 95% CI: - 8.66, - 3.61, P < 0.001). On the other hand, no discernible impact of this diet on ghrelin and adiponectin concentrations was noted. The subgroup analysis results demonstrated that the drop in leptin levels was considerably higher in persons with BMI > 30 kg/m2 and in trials that followed the KD for ≤ 8 weeks than in the other groups. CONCLUSIONS: Generally speaking, this diet can be utilized as a potentially helpful supplementary therapy to improve this adipokine, given the significance that leptin plays on numerous metabolic illnesses.

4.
Clin Neurol Neurosurg ; 246: 108542, 2024 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-39303664

RESUMO

OBJECTIVES: Based on the literature, tensor-based morphometry (TBM) parameters were related to neurocognitive functions such as memory, learning, language ability, and executive functions. The present study aims to evaluate the associations between TBM indices with executive functions, memory, language, and visuospatial abilities and the value of TBM in the clinical diagnosis of Alzheimer's disease (AD) among individuals with Alzheimer's disease continuum and mild cognitive impairment (MCI) from Alzheimer's Disease Neuroimaging Initiative (ADNI). METHODS: The authors used ADNI-memory (ADNI-MEM), ADNI-executive functions (ADNI-EF), ADNI-language (ADNI-LAN), and ADNI-visuospatial (ADNI-VS) composite scores. TBM parameters, including measure 1, which represents average within a statistically defined region-of-interest inside the temporal lobes and measure 2 which indicates average within an anatomically defined region-of-interest including bilateral temporal lobes were utilized in the current study. Statistical analysis was performed using IBM SPSS Statistics version 26, and Pearson's correlation, Bonferroni's correction, and multiple linear regression were utilized for data analysis. P <0.05 was considered statistically significant. RESULTS: After screening 800 participants, 270 (151 men, 119 women) were selected for a study with TBM scores and cognition-related assessments at 6, 12, and 24 months. Groups included healthy controls (n=53), MCI (n=158), and Alzheimer's Disease (AD) (n=59). TBM indices correlated with cognitive scores in MCI and AD groups but not healthy controls. Changes in TBM indices and cognitive scores were significantly correlated in MCI and AD groups over 24 months. TBM indices were weak predictors of cognitive decline at all time points. CONCLUSIONS: TBM can help physicians diagnose MCI and AD early. However, TBM could not strongly predict cognitive functions decline at all time points.

5.
Artigo em Inglês | MEDLINE | ID: mdl-39310939

RESUMO

BACKGROUND: There are inconsistencies in the results of the studies investigating the association between inflammatory bowel disease (IBD) and lymphoma. AIMS: The aim of this study is to systematically appraise the risk of lymphoma development in patients with IBD. METHODS: We searched Embase, PubMed and Scopus from inception to 30 April 2024 to identify population-based cohort studies that evaluated the risk of lymphoma in patients with IBD in comparison with those without IBD. We carried out random-effects meta-analyses and estimated pooled relative risks (RRs) with 95% confidence intervals (CIs). RESULTS: We identified 23 eligible studies reporting 2078 lymphoma events in 656,731 patients with IBD. Patients with IBD had 30% higher odds of lymphoma (RR = 1.30 [95% CI: 1.21-1.40]). The risk of developing both Hodgkin's lymphoma (nine studies, RR = 1.29 [95% CI: 1.06-1.53]) and non-Hodgkin's lymphoma (16 studies, RR = 1.31 [95% CI: 1.20-1.42]) was increased in patients with IBD (p for interaction = 0.881). The increased risk of lymphoma was observed in both Crohn's disease (17 studies, RR = 1.54 [95% CI: 1.27-1.80]) and ulcerative colitis (20 studies, RR = 1.22 [95% CI: 1.09-1.35]) (p for interaction = 0.026). Meta-regression demonstrated that mean age of patients, study year, mean study follow-up duration, and percentages of immunomodulators and biologics use did not influence study outcome. CONCLUSIONS: The risk of lymphoma is only modestly increased in patients with IBD, with Crohn's disease having a slightly higher risk than ulcerative colitis. In IBD, there appears to be no difference between the risks of Hodgkin's and non-Hodgkin's lymphoma.

6.
J Optom ; 17(4): 100523, 2024 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-39306986

RESUMO

PURPOSE: To determine the mean value and normative distribution of intraocular pressure (IOP) in children and their association with demographic and ocular biometrics. METHODS: Cluster sampling was done to select the students in urban areas of Shahroud, northeast Iran, while all students living in rural areas were selected. IOP was measured in mmHg using a non-contact tonometer, along with corneal and retinal imaging and ocular biometric measurement. RESULTS: After applying the exclusion criteria, 9154 eyes of 4580 students were analyzed, of whom 2377 (51.9 %) were boys. The mean age of the participants was 12.35±1.73 years (range: 9-15 years). The mean IOP was 15.58±2.83 (15.47-15.69) in total, 15.31±2.77 (15.17-15.46) in boys, and 15.88±2.86 (15.73-16.03) in girls (p < 0.001). The mean IOP was 15.07 and 15.49 in students aged 9 and 15 years, respectively. The mean IOP was 15.7 ± 2.64 (15.58-15.81) in urban and 14.52±4.05 (14.27-14.77) in rural students (p < 0.001). In the multiple generalized estimating equation model, IOP had a positive association with female sex (ß=0.84, P < 0.001), systolic blood pressure (ß=0.02, P < 0.001), cup volume (ß=0.99, P < 0.001), corneal thickness (ß=0.04, P < 0.001) and anterior chamber volume (ß=0.007, P < 0.001) and a negative association with living in the rural area (ß=-0.65, P < 0.001), rim area (ß=-0.39, P < 0.001), and corneal diameter (ß=-0.18, P = 0.045). Furthermore, individuals with myopia exhibited a significantly higher IOP (ß=0.35, P < 0.001) compared to those with emmetropia. CONCLUSION: This study showed the normative distribution of IOP and its associated factors in children. The results can be used in diagnosis and management of glaucoma.

7.
BMC Med Inform Decis Mak ; 24(1): 246, 2024 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-39227824

RESUMO

BACKGROUND: The worldwide prevalence of type 2 diabetes mellitus in adults is experiencing a rapid increase. This study aimed to identify the factors affecting the survival of prediabetic patients using a comparison of the Cox proportional hazards model (CPH) and the Random survival forest (RSF). METHOD: This prospective cohort study was performed on 746 prediabetics in southwest Iran. The demographic, lifestyle, and clinical data of the participants were recorded. The CPH and RSF models were used to determine the patients' survival. Furthermore, the concordance index (C-index) and time-dependent receiver operating characteristic (ROC) curve were employed to compare the performance of the Cox proportional hazards (CPH) model and the random survival forest (RSF) model. RESULTS: The 5-year cumulative T2DM incidence was 12.73%. Based on the results of the CPH model, NAFLD (HR = 1.74, 95% CI: 1.06, 2.85), FBS (HR = 1.008, 95% CI: 1.005, 1.012) and increased abdominal fat (HR = 1.02, 95% CI: 1.01, 1.04) were directly associated with diabetes occurrence in prediabetic patients. The RSF model suggests that factors including FBS, waist circumference, depression, NAFLD, afternoon sleep, and female gender are the most important variables that predict diabetes. The C-index indicated that the RSF model has a higher percentage of agreement than the CPH model, and in the weighted Brier Score index, the RSF model had less error than the Kaplan-Meier and CPH model. CONCLUSION: Our findings show that the incidence of diabetes was alarmingly high in Iran. The results suggested that several demographic and clinical factors are associated with diabetes occurrence in prediabetic patients. The high-risk population needs special measures for screening and care programs.


Assuntos
Diabetes Mellitus Tipo 2 , Estado Pré-Diabético , Modelos de Riscos Proporcionais , Humanos , Estado Pré-Diabético/epidemiologia , Masculino , Feminino , Pessoa de Meia-Idade , Irã (Geográfico)/epidemiologia , Adulto , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/mortalidade , Estudos Prospectivos , Idoso , Fatores de Risco
9.
Biochim Biophys Acta Mol Basis Dis ; 1871(1): 167500, 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39260679

RESUMO

The viral replication can impress through cellular miRNAs. Indeed, either the antiviral responses or the viral infection changes through cellular miRNAs resulting in affecting many regulatory signaling pathways. One of the microRNA families that is effective in human cancers, diseases, and viral infections is the miR-29 family. Members of miR-29 family are effective in different viral infections as their roles have appeared in regulation of immunity pathways either in innate immunity including interferon and inflammatory pathways or in adaptive immunity including activation of T-cells and antibodies production. Although miR-29a affects viral replication by suppressing antiviral responses, it can inhibit the expression of viral mRNAs via binding to their 3'UTR. In the present work, we discuss the evidence related to miR-29a and viral infection through host immunity regulation. We also review roles of other miR-29 family members by focusing on their role as biomarkers for diagnosing and targets for viral diseases management.

10.
J Res Med Sci ; 29: 32, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39239072

RESUMO

Background: This article introduces the first national guidelines for the management including diagnosis, treatment, and secondary prevention of acute coronary syndrome (ACS) in Iran. Materials and Methods: The members of the guideline development group (GDG) were specialists and experts in fields related to ACS and were affiliated with universities of medical sciences or scientific associations in the country. They carefully examined the evidence and clinical concerns related to ACS management and formulated 13 clinical questions that were sent to systematic review group who developed related evidence using Grade method. Finally the GDG developed the recommendations and suggestions of the guideline. Results: The first three questions in the guideline focus on providing recommendations for handling a patient who experience chest pain at home, in a health house or center, during ambulance transportation, and upon arrival at the emergency department (ED) as well as the initial diagnostic measures in the ED. Subsequently, the recommendations related to the criteria for categorizing patients into low, intermediate and high-risk groups are presented. The guideline addressed primary treatment measures for ACS patients in hospitals with and without code 247 or having primary percutaneous coronary intervention (PCI) facilities, and the appropriate timing for PCI based on the risk assessment. In addition, the most efficacious antiplatelet medications for ACS patients in the ED as well as its optimal duration of treatment are presented. The guideline details the recommendations for therapeutic interventions in patients with ACS and acute heart failure, cardiogenic shock, myocardial infarction with nonobstructive coronary arteries (MINOCA), multivessel occlusion, as well as the indication for prescribing a combined use of anticoagulants and antiplatelet during hospitalization and upon discharge. Regarding secondary prevention, while emphasizing the referral of these patients to rehabilitation centers, other interventions that include pharmaceutical and nonpharmacological ones are addressed, In addition, necessary recommendations for enhancing lifestyle and posthospital discharge pharmaceutical treatments, including their duration, are provided. There are specific recommendations and suggestions for subgroups, such as patients aged over 75 years and individuals with heart failure, diabetes, and chronic kidney disease. Conclusion: Developing guidelines for ACS diagnosis, treatment and secondary prevention according to the local context in Iran can improve the adherence of our health care providers, patients health, and policy makers plans.

11.
Phys Eng Sci Med ; 2024 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-39264487

RESUMO

In this paper, we propose a new deep learning method based on Quaternion Wavelet Transform (QWT) phases of 2D echocardiographic sequences to estimate the motion and strain of myocardium. The proposed method considers intensity and phases gained from QWT as the inputs of customized PWC-Net structure, a high-performance deep network in motion estimation. We have trained and tested our proposed method performance using two realistic simulated B-mode echocardiographic sequences. We have evaluated our proposed method in terms of both geometrical and clinical indices. Our method achieved an average endpoint error of 0.06 mm per frame and 0.59 mm between End Diastole and End Systole on a simulated dataset. Correlation analysis between ground truth and the computed strain shows a correlation coefficient of 0.89, much better than the most efficient methods in the state-of-the-art 2D echocardiography motion estimation. The results show the superiority of our proposed method in both geometrical and clinical indices.

12.
Sci Rep ; 14(1): 21093, 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39256538

RESUMO

In this study, we propose and simulate a magnetoplasmonics heterostructure that utilizes spin-orbit fields to generate an internal magnetic field and create a significant magneto-optical effect. Our approach offers a new way to overcome the challenges of using permanent magnets or magnetic coils in conventional magnetoplasmonics, such as high-power consumption and non-scalability. We demonstrate that it is possible to create an appropriate amount of magnetic field using spin-orbit fields induced by the spin-Hall effect, such that the consumption power becomes reasonable and the dimensions could be miniaturized. This approach will be an important development in the field of magneto-optics, as it can lead to enhanced transverse magneto-optical Kerr effect in the present of surface plasmon polaritons. The proposed nanostructure consists of a ferromagnetic film adjacent to a heavy metal layer, both sandwiched between two noble metal films, and deposited on a dielectric prism. The strength of the Kerr signal strongly depends on the thickness of the ferromagnetic layer, with the maximum effect observed at a thickness of 5nm. This concept has potential for various nanophotonic and spintronic applications, particularly for developing high-speed active plasmonic devices for ultrafast light modulation.

13.
Heliyon ; 10(16): e35804, 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39224350

RESUMO

Resilience of the power system against natural disasters is a vital need for sustainable energy supply. As a result of global warming, lakes and rivers have dried out, resulting in dust hubs that threaten the normal operation of outdoor power system equipment. Unlike other events like hurricanes and blizzards, the impact of extreme salt dust on power system insulator failures and network resilience in affected areas remains unexamined. In this paper, to avoid power curtailment caused by insulators breakdown in electricity distribution networks, the resiliency assessment and enhancement of these networks against salt dust is investigated. Failure mechanism analysis of insulators and fragility curves extraction of them in face of salt pollution and relative humidity are done using mathematical modelling and experimental tests to extract the breakdown probability; Experimental tests are conducted in the High Voltage Laboratory, University of Tehran (HVLUT) and a novel method is proposed to extract 3-dimensional fragility curves of insulators. A Monte Carlo-based resiliency assessment method is then employed to obtain resiliency curve against the salt dust. Some suitable indicators are introduced for this purpose. In addition, several resiliency enhancement measures are proposed and ranked using a benefit to cost ratio (BCR) index. Numerical simulations are conducted on two real distribution feeders in a distribution grid around Urmia Salt Lake, Iran. Numerical results confirm the effectiveness and applicability of the proposed method.

14.
Vet Parasitol ; 331: 110277, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39094330

RESUMO

The health and productivity of broilers may be improved by optimizing the availability and levels of trace minerals (TM) in their feed, especially in the presence of parasites. This study investigated the effects of replacing inorganic TM (ITM) with an advanced chelate technology-based 7 TM (ACTM) on performance, hematology, lesion score, oocyst shedding, gut morphology, and tight junction structure in broilers challenged with mixed Eimeria species. There were 480 1-day-old broiler chickens divided into 5 groups: uninfected negative control and recommended levels of ITM (NC); infected positive control and recommended levels of ITM (PC); or PC supplemented with salinomycin (SAL); PC diet with 50 % ACTM instead of ITM (ACTM50); or PC diet with 100 % ACTM instead of ITM (ACTM100). All groups, except NC, were orally challenged with mixed Eimeria spp. oocysts on day 14. Each group had 6 replicate cages, with 16 birds per replicate. The results showed that the NC, SAL, and ACTM100 groups had higher (P < 0.05) body weight, average daily gain (ADG), and European production efficiency index (EPEI), as well as a lower (P < 0.05) feed conversion, mortality rate, and heterophile to lymphocyte ratio compared to the PC group, with the NC group having the highest ADG and EPEI throughout the experiment. The SAL and ACTM100 groups had lower (P < 0.05) intestinal lesion scores and oocyst numbers compared to the PC group, although all coccidiosis-challenged groups had higher oocyst shedding compared to the NC group. On day 24, the challenged birds in the SAL and ACTM100 groups had higher (P < 0.05) villus height and surface area in the duodenum and ileum, as well as a higher (P < 0.05) villus height to crypt depth ratio in the jejunum. The expression levels of jejunal CLDN1 and ZO-1 were also higher (P < 0.05) in the ACTM100 and SAL groups compared to the PC and ACTM50 groups at 24 days of age. In conclusion, while using ACTM in broiler diets at 50 % of the commercial recommended levels maintained performance and physiological responses, complete replacement with ACTM improved growth performance and intestinal health characteristics, similar to salinomycin under Eimeria challenge conditions.


Assuntos
Ração Animal , Galinhas , Coccidiose , Dieta , Suplementos Nutricionais , Eimeria , Doenças das Aves Domésticas , Animais , Galinhas/parasitologia , Coccidiose/veterinária , Coccidiose/parasitologia , Coccidiose/prevenção & controle , Doenças das Aves Domésticas/parasitologia , Doenças das Aves Domésticas/prevenção & controle , Eimeria/efeitos dos fármacos , Eimeria/fisiologia , Ração Animal/análise , Suplementos Nutricionais/análise , Dieta/veterinária , Intestinos/parasitologia , Oligoelementos/farmacologia , Policetídeos de Poliéter , Piranos
15.
BMC Nutr ; 10(1): 111, 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39138555

RESUMO

BACKGROUND: Recent evidence shows the role of sirtuin 1(SIRT1), a family of evolutionarily conserved proteins, as a potential therapeutic target in the prevention and treatment of obesity and metabolic diseases. Some evidence shows the moderating effects of weight loss interventions on this factor. However, the findings are contradictory. In order to obtain a better viewpoint from them, this study aimed to comprehensively investigate the effects of weight loss interventions on SIRT 1 modulation. METHODS: For this study, we searched four electronic databases using predefined keywords from inception until March 2024. We includedrandomized controlled trials that evaluated the effect of weight reduction strategies on SIRT1 levels. The random-effects model analysis was used to obtain the pooled weighted mean difference (WMD) and 95% confidence intervals (95% CI). The meta-analysis was conducted using RevMan version 5.3 software and Stata version 12.0. RESULTS: Twelve studies with 627 volunteers were included. The pooled findings showed that weight loss interventions have no significant effect on the modulation of SIRT1 compared to the control group (pooled WMD of 0.58 ng/mL; 95% confidence interval [CI] -0.17 to 1.33; p = 0.130). However, subgroup analysis showed that weight loss interventions significantly modulate SIRT1 at metabolic disease (WMD: 1.2 ng/mL, 95% CI: 0.11 to 2.62, I2 = 82.9%). In addition, subgroup findings indicated health status and body mass index (BMI) as sources of high and potential heterogeneity. CONCLUSIONS: Based on the findings, weight loss therapies in individuals having a metabolic disorder appear to generate a considerable increase in SIRT1 levels.

16.
Curr Mol Pharmacol ; 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39143882

RESUMO

Post-surgical adhesion is a medical challenge, especially following abdominal and pelvic surgeries. This refers to the formation of fibrotic scars that form from connective tissue in the gynecological tract or abdominal cavity. Dysfunctional adipose tissue (AT) by surgical injuries and hypoxia increases the risk of post-surgical adhesion through different molecular mechanisms. Damage-associated molecular patterns (DAMPs) and Hypoxia-induced factor 1 alpha (HIF-1α) produced during surgery trauma and hypoxia induce AT dysfunction to promote inflammation, oxidative stress, metabolic alterations, and profibrotic pathways, which contribute to post-surgical adhesions. HIF-1α and DAMPs can be considered therapeutic targets to prevent AT dysfunction and diminish the formation of adhesions in obese patients undergoing abdominal or pelvic surgeries.

17.
J Transl Med ; 22(1): 726, 2024 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-39103897

RESUMO

Accurate survival prediction for Non-Small Cell Lung Cancer (NSCLC) patients remains a significant challenge for the scientific and clinical community despite decades of advanced analytics. Addressing this challenge not only helps inform the critical aspects of clinical study design and biomarker discovery but also ensures that the 'right patient' receives the 'right treatment'. However, survival prediction is a highly complex task, given the large number of 'omics; and clinical features, as well as the high degree of freedom that drive patient survival. Prior knowledge could play a critical role in uncovering the complexity of a disease and understanding the driving factors affecting a patient's survival. We introduce a methodology for incorporating prior knowledge into machine learning-based models for prediction of patient survival through Knowledge Graphs, demonstrating the advantage of such an approach for NSCLC patients. Using data from patients treated with immuno-oncologic therapies in the POPLAR (NCT01903993) and OAK (NCT02008227) clinical trials, we found that the use of knowledge graphs yielded significantly improved hazard ratios, including in the POPLAR cohort, for models based on biomarker tumor mutation burden compared with those based on knowledge graphs. Use of a model-defined mutational 10-gene signature led to significant overall survival differentiation for both trials. We provide parameterized code for incorporating knowledge graphs into survival analyses for use by the wider scientific community.


Assuntos
Biomarcadores Tumorais , Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Aprendizado de Máquina , Carcinoma Pulmonar de Células não Pequenas/genética , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/patologia , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/patologia , Análise de Sobrevida , Prognóstico , Modelos de Riscos Proporcionais , Gráficos por Computador , Mutação/genética , Conhecimento
18.
Clin Spine Surg ; 2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39206970

RESUMO

STUDY DESIGN: Retrospective review. OBJECTIVE: We sought to characterize complications associated with anterior column release (ACR). SUMMARY OF BACKGROUND DATA: Correction of positive sagittal imbalance was traditionally completed with anterior column grafts or posterior osteotomies. ACR is a minimally invasive technique for addressing sagittal plane deformity by restoring lumbar lordosis. METHODS: We conducted a retrospective review of consecutive patients who underwent ACR in a prospectively kept database at a tertiary care academic center from January 2012 to December 2018. The prespecified complications were hardware failure (rod fracture, hardware loosening, or screw fracture), proximal junctional kyphosis, ipsilateral thigh numbness, ipsilateral femoral nerve weakness, arterial injury requiring blood transfusion, bowel injury, and abdominal pseudohernia. RESULTS: Thirty-eight patients were identified. Thirty-five patients had ACR at L3-4, 1 had ACR at L4-5, and 1 patient had ACR at L2-3 and L3-4. Eighteen patients (47.4%) had one of the prespecified complications (10 patients had multiple). Ten patients developed hardware failure (26.3%); 8 patients (21.1%) had rod fracture, 4 (10.5%) had screw fracture, and 1 (2.6%) had screw loosening. At discharge, rates of ipsilateral thigh numbness (37.8%) and hip flexor (37.8%)/quadriceps weakness (29.7%) were the highest. At follow-up, 6 patients (16.2%) had ipsilateral anterolateral thigh numbness, 5 (13.5%) suffered from ipsilateral hip flexion weakness, and 3 patients (5.4%) from ipsilateral quadriceps weakness. Arterial injury occurred in 1 patient (2.7%). Abdominal pseudohernia occurred in 1 patient (2.7%). There were no bowel injuries observed. CONCLUSIONS: ACR is associated with a higher than initially anticipated risk of neurological complications, hardware failure, and proximal junctional kyphosis.

19.
Mayo Clin Proc ; 2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39207344

RESUMO

OBJECTIVE: To evaluate the safety of triptans in migraine patients with cardiovascular disease or elevated cardiovascular risk. PATIENTS AND METHODS: We retrieved data from a multistate US-based health system (January 2000 to August 2022) on adults with migraine and confirmed cardiovascular/cerebrovascular disease, or at least two cardiovascular risk factors. We compared the effect of triptans to nontriptan treatments on major adverse cardiovascular events (MACE) and its components at 60 days of starting treatments. We emulated a target trial and used propensity score matching for analysis. RESULTS: The 3518 patients in the triptan group were matched to the 3518 patients in the nontriptan group (median age, 55 years; 80.60% female). At 60 days, 52 patients (1.48%) in the triptan group had MACE, compared with 13 patients (0.37%) in the nontriptan group (relative risk [RR], 4.00; 95% CI, 2.24 to 7.14). Patients treated with triptans also had significantly higher risk of nonfatal myocardial infarction (15 patients (0.43%) vs 0 patients (0.00%)); heart failure (RR, 4.50; 95% CI, 1.91 to 10.61); and nonfatal stroke (RR, 8.00; 95% CI, 1.00 to 63.96). Five patients (0.14%) in each group died. The findings were consistent when analyses were restricted to sumatriptan, oral administration of triptan, patients with chronic migraine, history of cardiovascular disease, or history of cerebrovascular disease. CONCLUSION: Triptans likely increase the risk of MACE; however, the incidence of MACE remains low in migraine patients with cardiovascular disease or elevated cardiovascular risk. TRIAL REGISTRATION: Treatments of Migraine With Triptans in Individuals With Elevated Cardiovascular Risk and in Pregnant Women. CLINICALTRIALS: gov Identifier: NCT05854992 (https://classic. CLINICALTRIALS: gov/ct2/show/NCT05854992).

20.
Artigo em Inglês | MEDLINE | ID: mdl-39209202

RESUMO

BACKGROUND AND AIMS: Limited data exist regarding the estimate of the prevalence of advanced liver fibrosis and cirrhosis in the general population. Therefore, we conducted a systematic review and meta-analysis to evaluate the global prevalence and risk factors of advanced fibrosis and cirrhosis. METHODS: We searched Embase, PubMed, Scopus, and Web of Science from inception to 30 April 2024 with no language restriction. We included cross-sectional studies reporting the prevalence of advanced liver fibrosis and/or cirrhosis in a sample of at least 100 individuals aged ≥18 years from the general population. Subjects with cirrhosis were included in the advanced fibrosis group. The pooled prevalence proportions utilizing a random-effects model and 95% confidence intervals (CIs) were estimated using global data. RESULTS: A total of 46 studies fulfilled the eligibility criteria, comprising approximately 8 million participants from 21 countries. The pooled prevalence rates of advanced liver fibrosis and cirrhosis in the general population were 3.3% (95% CI: 2.4-4.2) and 1.3% (95% CI: 0.9-1.7) worldwide, respectively. A trend was observed for an increase in the prevalence of advanced fibrosis (p=0.004) and cirrhosis (p=0.034) after 2016. There were significant geographic variations in the advanced fibrosis and cirrhosis prevalence at continental and national levels (p<0.0001). Potential risk factors for cirrhosis were viral hepatitis, diabetes, excessive alcohol intake, obesity, and male sex. CONCLUSIONS: The prevalence of advanced fibrosis and cirrhosis is considerable and increasing worldwide with significant geographic variation. Further research is needed to better understand the risk factors and how to mitigate them worldwide to address the growing global burden of cirrhosis.

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