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1.
Nitric Oxide ; 145: 1-7, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38309328

RESUMO

Nitric oxide (NO), as a vital cellular signalling molecule in physiological processes, has been found to play an important role in various biological functions. In this study, we rationally designed three NO donors by tethering nitrobenzene derivatives to three fluorescent chromophores. NX-NO was found to release NO and exhibit a high fluorescence turn-on signal ratio upon exposure to LED yellow light. Additionally, it had excellent photo-stability and good inhibitory activity against cancer cell proliferation, and was successfully applied to cell imaging. Moreover, we detected the release of NO and fluorescence response in the blood of a mouse, suggesting its potential therapeutic application in living organisms.


Assuntos
Corantes Fluorescentes , Doadores de Óxido Nítrico , Camundongos , Animais , Doadores de Óxido Nítrico/farmacologia , Óxido Nítrico , Fluorescência , Proliferação de Células
2.
BMC Anesthesiol ; 24(1): 244, 2024 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-39026144

RESUMO

BACKGROUND: Conventional anesthesia used to reduce central venous pressure (CVP) during hepatectomy includes fluid restriction and vasodilator drugs, which can lead to a reduction in blood perfusion in vital organs and may counteract the benefits of low blood loss. In this study, we hypothesized that milrinone is feasible and effective in controlling low CVP (LCVP) during laparoscopic hepatectomy (LH). Compared with conventional anesthesia such as nitroglycerin, milrinone is beneficial in terms of intraoperative blood loss, surgical environment, hemodynamic stability, and patients' recovery. METHODS: In total, 68 patients undergoing LH under LCVP were randomly divided into the milrinone group (n = 34) and the nitroglycerin group (n = 34). Milrinone was infused with a loading dose of 10 µg/kg followed by a maintenance dose of 0.2-0.5 µg/kg/min and nitroglycerin was administered at a rate of 0.2-0.5 µg/kg/min until the liver lesions were removed. The characteristics of patients, surgery, intraoperative vital signs, blood loss, the condition of the surgical field, the dosage of norepinephrine, perioperative laboratory data, and postoperative complications were compared between groups. Blood loss during LH was considered the primary outcome. RESULTS: Blood loss during hepatectomy and total blood loss were significantly lower in the milrinone group compared with those in the nitroglycerin group (P < 0.05). Both the nitroglycerin group and milrinone group exerted similar CVP (P > 0.05). Nevertheless, the milrinone group had better surgical field grading during liver resection (P < 0.05) and also exhibited higher cardiac index and cardiac output during the surgery (P < 0.05). Significant differences were also found in terms of fluids administered during hepatectomy, urine volume during hepatectomy, total urine volume, and norepinephrine dosage used in the surgery between the two groups. The two groups showed a similar incidence of postoperative complications (P > 0.05). CONCLUSION: Our findings indicate that the intraoperative infusion of milrinone can help in maintaining an LCVP and hemodynamic stability during LH while reducing intraoperative blood loss and providing a better surgical field compared with nitroglycerin. TRIAL REGISTRATION: ChiCTR2200056891,first registered on 22/02/2022.


Assuntos
Perda Sanguínea Cirúrgica , Pressão Venosa Central , Hepatectomia , Laparoscopia , Milrinona , Nitroglicerina , Vasodilatadores , Humanos , Milrinona/administração & dosagem , Nitroglicerina/administração & dosagem , Hepatectomia/métodos , Masculino , Feminino , Método Duplo-Cego , Laparoscopia/métodos , Pessoa de Meia-Idade , Pressão Venosa Central/efeitos dos fármacos , Vasodilatadores/administração & dosagem , Perda Sanguínea Cirúrgica/prevenção & controle , Idoso , Adulto , Complicações Pós-Operatórias/prevenção & controle
3.
Sensors (Basel) ; 24(6)2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38544107

RESUMO

Identifying violent activities is important for ensuring the safety of society. Although the Transformer model contributes significantly to the field of behavior recognition, it often requires a substantial volume of data to perform well. Since existing datasets on violent behavior are currently lacking, it will be a challenge for Transformers to identify violent behavior with insufficient datasets. Additionally, Transformers are known to be computationally heavy and can sometimes overlook temporal features. To overcome these issues, an architecture named MLP-Mixer can be used to achieve comparable results with a smaller dataset. In this research, a special type of dataset to be fed into the MLP-Mixer called a sequential image collage (SIC) is proposed. This dataset is created by aggregating frames of video clips into image collages sequentially for the model to better understand the temporal features of violent behavior in videos. Three different public datasets, namely, the dataset of National Hockey League hockey fights, the dataset of smart-city CCTV violence detection, and the dataset of real-life violence situations were used to train the model. The results of the experiments proved that the model trained using the proposed SIC is capable of achieving high performance in violent behavior recognition with fewer parameters and FLOPs needed compared to other state-of-the-art models.

4.
J Int Med Res ; 52(1): 3000605231221088, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38190840

RESUMO

Caroli disease is a rare congenital malformation that predisposes to segmental cystic dilatation of the intrahepatic bile ducts. Banti syndrome is characterized by persistent splenomegaly due to chronic congestion, resulting in a low hematocrit and ultimately leading to pancytopenia. In this report, we describe a 29-year-old woman who presented with a >20-year history of hepatitis B surface antigen positivity and a >1-year history of recurrent fatigue and malaise. On examination, the patient had abdominal distension with marked splenomegaly (7 cm below the ribs) and ascites with tenderness of the abdominal muscles to palpation. A complete blood count showed a low white blood cell count, red blood cell count, and hemoglobin concentration. During the course of treatment, the patient developed multiple symptoms of pancytopenia and concomitant splenomegaly, and she was discharged after total splenectomy with good recovery. The combination of Banti syndrome and Caroli disease results in severe symptoms of portal hypertension.


Assuntos
Doença de Caroli , Hipertensão Portal , Hipertensão Portal não Cirrótica Idiopática , Pancitopenia , Feminino , Humanos , Adulto , Esplenomegalia/complicações , Esplenomegalia/diagnóstico por imagem , Esplenomegalia/cirurgia
5.
Front Oncol ; 14: 1397505, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38952558

RESUMO

Primary hepatocellular carcinoma (PHC) is associated with high rates of morbidity and malignancy in China and throughout the world. In clinical practice, a combination of ultrasound and alpha-fetoprotein (AFP) measurement is frequently employed for initial screening. However, the accuracy of this approach often falls short of the desired standard. Consequently, this study aimed to investigate the enhancement of precision of preliminary detection of PHC by ensemble learning techniques. To achieve this, 712 patients with PHC and 1887 healthy controls were enrolled for the assessment of four ensemble learning methods, namely, Random Forest (RF), LightGBM, Xgboost, and Catboost. A total of eleven characteristics, comprising nine serological indices and two demographic indices, were selected from the participants for use in detecting PHC. The findings identified an optimal feature subset consisting of eight features, namely AFP, albumin (ALB), alanine aminotransferase (ALT), platelets (PLT), age, alkaline phosphatase (ALP), hemoglobin (Hb), and body mass index (BMI), that achieved the highest classification accuracy of 96.62%. This emphasizes the importance of the collective use of these features in PHC diagnosis. In conclusion, the results provide evidence that the integration of serological and demographic indices together with ensemble learning models, can contribute to the precision of preliminary diagnosis of PHC.

6.
Sci Rep ; 14(1): 3145, 2024 02 07.
Artigo em Inglês | MEDLINE | ID: mdl-38326384

RESUMO

Indole-3-carbinol(I3C) is a tumor chemopreventive substance that can be extracted from cruciferous vegetables. Indole-3-carbinol (I3C) has been shown to have antioxidant and anti-inflammatory effects. In this study, we investigated the cerebral protective effects of I3C in an in vivo rats model of middle cerebral artery occlusion (MCAO). 8-10 Week-Old male SD rat received I3C (150 mg/kg, once daily) for 3 days and underwent 3 h of middle cerebral artery occlusion (MCAO) followed by reperfusion. The results showed that I3C pretreatment (150 mg/kg, once daily) prevented CIRI-induced cerebral infarction in rats. I3C pretreatment also decreased the mRNA expression levels of several apoptotic proteins, including Bax, caspase-3 and caspase-9, by increasing the mRNA expression levels of the anti-apoptotic protein Bcl-2. Inhibited apoptosis in the brain cells of MCAO rats. In addition, we found that I3C pretreatment reduced neuronal loss, promoted neurological recovery after ischemia-reperfusion injury and increased seven-day survival in MCAO rats. I3C pretreatment also significantly reduced the expression of inducible nitric oxide synthase (INOS), interleukin-1ß (IL-1ß) and interleukin-6 (IL-6) mRNA in ischemic brain tissue; Increased expression of interleukin-4 (IL-4) and interleukin-10 (IL-10) mRNA. At the same time, I3C pretreatment significantly decreased the expression of the M1 microglial marker IBA1 after cerebral ischemia-reperfusion injury and increased the expression of these results in the M2 microglial marker CD206. I3C pretreatment also significantly decreased apoptosis and death of HAPI microglial cells after hypoxia induction, decreased interleukin-1ß (IL-1ß) and interleukin-6 (IL-6) mRNA The expression of interleukin-4 (IL-4) and interleukin-10 (IL-10) mRNAs was increased. These results suggest that I3C protects the brain from CIRI by regulating the anti-inflammatory and anti-apoptotic effects of microglia.


Assuntos
Isquemia Encefálica , Indóis , Traumatismo por Reperfusão , Ratos , Masculino , Animais , Microglia/metabolismo , Interleucina-10/metabolismo , Interleucina-4/metabolismo , Interleucina-6/metabolismo , Ratos Sprague-Dawley , Infarto da Artéria Cerebral Média/tratamento farmacológico , Infarto da Artéria Cerebral Média/metabolismo , Interleucina-1beta/metabolismo , Traumatismo por Reperfusão/patologia , Isquemia Encefálica/patologia , Apoptose , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Anti-Inflamatórios/uso terapêutico , RNA Mensageiro/metabolismo
7.
Braz J Psychiatry ; 2024 Apr 09.
Artigo em Inglês | MEDLINE | ID: mdl-38593057

RESUMO

OBJECTIVE: To investigate efficacy of repetitive transcranial magnetic stimulation (rTMS) on attention-deficit/hyperactivity disorder (ADHD). METHODS: Randomized sham-controlled trials (RCTs) were identified from major databases from the inception date of January 1990 to January 2023. Primary outcome was improvement in total symptoms of ADHD. Subgroup analysis focused on rTMS efficacy targeting different brain regions. Secondary outcomes were associations of rTMS with improvements in different symptoms of ADHD. Outcomes were expressed as effect size (ES) based on standardized mean difference (SMD) (continuous data), and odds ratios (ORs) with 95% confidence interval (CI) (categorical data). RESULTS: Meta-analysis of six RCTs involving 169 participants demonstrated no difference in total ADHD symptoms between rTMS-treated participants and sham controls (SMD=-0.24,p=0.17). Subgroup analysis revealed better efficacy of rTMS than sham controls when targeting right prefrontal cortex (rPFC) (SMD=-0.49,p=0.03), but not left prefrontal cortex (lPFC) (SMD= 0.01,p=0.67). rTMS treatment correlated with better improvement in symptoms of inattention (SMD=-0.76,p=0.0002), but not hyperactivity (p=0.86), impulsivity (p=0.41), and depression (p=0.95). The apparently higher risk of dropout in the rTMS group than sham controls was not statistically significant (OR=1.65,p=0.26). CONCLUSIONS: Our study only supported the therapeutic efficacy of rTMS targeting rPFC for the symptoms of ADHD, especially inattention, but not that targeting lPFC. Further large-scale randomized sham-controlled trials are required to verify our findings.

8.
BJPsych Open ; 10(1): e36, 2024 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-38268113

RESUMO

BACKGROUND: The efficacy of probiotics as a therapeutic alternative for attention-deficit hyperactivity disorder (ADHD) remain unclear. AIMS: To investigate the effectiveness of probiotics for symptoms of ADHD and identify possible factors affecting their efficacy. METHOD: Randomised placebo-controlled trials were identified through searching major databases from inception to April 2023, using the main keywords 'probiotics' and 'ADHD' without limitation on languages or geographic locations. The outcome of interest included improvement in total symptoms of ADHD, symptoms of inattention and hyperactivity/impulsivity, and drop-out rate. Continuous and categorical data were expressed as effect sizes based on standardised mean differences (SMDs) and odds ratios, respectively, with 95% confidence intervals. RESULTS: Meta-analysis of seven trials involving 379 participants (mean age 10.37 years, range 4-18 years) showed no significant improvement in total symptoms of ADHD (SMD = 0.25; P = 0.12), symptoms of inattention (SMD = 0.14; P = 0.3) or hyperactivity/impulsivity (SMD = 0.08; P = 0.54) between the probiotic and placebo groups. Despite non-significance on subgroup analyses, there was a large difference in effect size between studies using probiotics as an adjunct to methylphenidate and those using probiotics as supplementation (SMD = 0.84 v. 0.07; P = 0.16), and a moderate difference in effect size between studies using multiple strains of probiotics and those using single-strain regimens (SMD = 0.45 v. 0.03; P = 0.19). CONCLUSIONS: Current evidence shows no significant difference in therapeutic efficacy between probiotics and placebos for treatment of ADHD symptoms. However, albeit statistically non-significant, higher therapeutic efficacies associated with multiple-strain probiotics or combining probiotics with methylphenidate may provide direction for further research.

9.
Adv Nutr ; 15(2): 100163, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38110000

RESUMO

Migraine is a highly prevalent neurologic disorder with prevalence rates ranging from 9% to 18% worldwide. Current pharmacologic prophylactic strategies for migraine have limited efficacy and acceptability, with relatively low response rates of 40% to 50% and limited safety profiles. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are considered promising therapeutic agents for migraine prophylaxis. The aim of this network meta-analysis (NMA) was to compare the efficacy and acceptability of various dosages of EPA/DHA and other current Food and Drug Administration-approved or guideline-recommended prophylactic pharmacologic interventions for migraine. Randomized controlled trials (RCTs) were eligible for inclusion if they enrolled participants with a diagnosis of either episodic or chronic migraine. All NMA procedures were conducted under the frequentist model. The primary outcomes assessed were 1) changes in migraine frequency and 2) acceptability (i.e., dropout for any reason). Secondary outcomes included response rates, changes in migraine severity, changes in the frequency of using rescue medications, and frequency of any adverse events. Forty RCTs were included (N = 6616; mean age = 35.0 y; 78.9% women). Our analysis showed that supplementation with high dosage EPA/DHA yields the highest decrease in migraine frequency [standardized mean difference (SMD): -1.36; 95% confidence interval (CI): -2.32, -0.39 compared with placebo] and the largest decrease in migraine severity (SMD: -2.23; 95% CI: -3.17, -1.30 compared with placebo) in all studied interventions. Furthermore, supplementation with high dosage EPA/DHA showed the most favorable acceptability rates (odds ratio: 1.00; 95% CI: 0.06, 17.41 compared with placebo) of all examined prophylactic treatments. This study provides compelling evidence that high dosage EPA/DHA supplementation can be considered a first-choice treatment of migraine prophylaxis because this treatment displayed the highest efficacy and highest acceptability of all studied treatments. This study was registered in PROSPERO as CRD42022319577.


Assuntos
Ácidos Graxos Ômega-3 , Transtornos de Enxaqueca , Feminino , Humanos , Adulto , Masculino , Ácidos Graxos Ômega-3/uso terapêutico , Metanálise em Rede , Ácidos Docosa-Hexaenoicos , Ácido Eicosapentaenoico/uso terapêutico , Transtornos de Enxaqueca/prevenção & controle , Transtornos de Enxaqueca/induzido quimicamente , Transtornos de Enxaqueca/tratamento farmacológico , Suplementos Nutricionais
10.
Prostaglandins Leukot Essent Fatty Acids ; 202: 102633, 2024 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-39159529

RESUMO

Sepsis is a critical medical condition associated with high mortality for patients. Current pharmacological strategies for sepsis management or prevention had not achieved satisfactory results. The omega-3 fatty acids, with anti-inflammatory benefits, are considered to be promising agents for sepsis management/prevention. The aim of this network meta-analysis (NMA) is to compare the efficacy of various dosages and formulations of fish oil supplements for sepsis management and sepsis prevention. The current NMA consisted of two parts: (1) sepsis management and (2) sepsis prevention. The PubMed, ClinicalKey, Embase, ProQuest, Cochrane CENTRAL, ScienceDirect, Web of Science, and ClinicalTrials.gov databases were systematically searched to date of February 22nd, 2024 for relevant randomized controlled trials (RCTs). RCTs were eligible for inclusion if they enrolled participants with a diagnosis of sepsis or who with high risk for sepsis. All NMA procedures were conducted under the frequentist model. The primary outcomes assessed are (1) mortality rate in sepsis treatment or (2) incidence of sepsis in sepsis prevention. Our NMA, based on 28 RCTs and 1718 participants (mean age=51.6 years, mean female proportion=35.6 %), showed that (1) high dose parenteral fish oil supplement yield the lowest mortality rate in sepsis management in adult patients, and (2) high dose enteral fish oil supplement yield the lowest incidence of sepsis in pediatric patients. This study provides compelling evidence that high-dose fish oil supplements provide beneficial effects for both sepsis management and sepsis prevention. Our findings provide a preliminary rationale for future large-scale RCTs to investigate the role of fish oil supplementation in sepsis management or prevention.

11.
J Int Med Res ; 51(12): 3000605231220887, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38150565

RESUMO

Gaucher disease is a rare, autosomal recessive disorder caused by inborn errors of metabolism. Globally, more than 27 million people are born each year, and approximately 19,000 neonates are born with lysosomal storage disease. We report a rare case of Gaucher disease in an adult female patient of non-consanguineous parents in a subtropical area of Jiangxi Province, China. This area has a high prevalence of schistosomiasis. The diagnosis of this case posed a great challenge because of the possible differential diagnoses of pancytopenia with hepatomegaly and giant splenomegaly. The key component of the patient's diagnosis was her medical history in which it was documented that her brother had died of hepatocellular carcinoma of unknown origin. We diagnosed the patient through a combination of a pathological biopsy and imaging plus the patient's medical history.


Assuntos
Doença de Gaucher , Neoplasias Hepáticas , Humanos , Adulto , Recém-Nascido , Feminino , Doença de Gaucher/complicações , Doença de Gaucher/diagnóstico , Doença de Gaucher/epidemiologia , Doenças Raras/diagnóstico , Doenças Raras/complicações , Esplenomegalia/diagnóstico por imagem , Diagnóstico Diferencial , Neoplasias Hepáticas/diagnóstico
12.
Front Public Health ; 11: 1323511, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38115853

RESUMO

Background: Therapeutic efficacies of probiotics in improving neurocognitive functions in infants and young children remained unclear. This meta-analysis focused on different cognitive outcomes in this population. Methods: Major databases were searched electronically from inception to October 2023 to identify randomized controlled trials (RCTs) that investigated the therapeutic efficacy of probiotics in enhancing cognitive functions assessed by standardized tasks. The overall effect size was calculated as standardized mean difference (SMD) based on a random effects model. Results: Nine RCTs with 3,026 participants were identified. Both our primary and secondary results demonstrated no significant difference in neurocognitive outcomes between infants/children treated with probiotics and those receiving placebos. However, our subgroup analysis of studies that offered a probiotics treatment course of over six months demonstrated a significantly better neurocognitive outcome than placebos (SMD = 0.21, p = 0.03, two studies with 451 participants), but this finding was based on only two RCTs. Conclusion: Despite lack of significant therapeutic effects of probiotics on neurocognitive outcomes, our finding of a positive impact of probiotics on neurocognitive development in those undergoing treatment for over six months may provide an important direction for further investigations into the enhancement of therapeutic effects of probiotics on neurocognitive development in infants and young children. Systematic review registration: PROSPERO CRD42023463412.


Assuntos
Cognição , Probióticos , Pré-Escolar , Humanos , Lactente , Probióticos/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto
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