Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 194
Filtrar
1.
J Int Med Res ; 52(9): 3000605241274581, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39246070

RESUMEN

Pneumatosis cystoides intestinalis (PCI) is a rare condition characterized by air accumulation within the subserosa or submucosa of the gastrointestinal wall. We herein report a case involving a woman in her early 30s who developed PCI after undergoing allogeneic hematopoietic stem cell transplantation (HSCT) for acute lymphoblastic leukemia. The patient had a history of multiple COVID-19 infections. Imaging revealed extensive pneumoperitoneum and mesenteric emphysema; nevertheless, the patient remained clinically stable with a benign abdominal examination. She eventually recovered after 1 month of conservative treatment. We believe the PCI in this case had a multifactorial etiology, potentially involving both HSCT and COVID-19. Raising awareness of PCI may help avoid unnecessary surgical interventions and associated morbidity.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Neumatosis Cistoide Intestinal , Leucemia-Linfoma Linfoblástico de Células Precursoras , Humanos , Neumatosis Cistoide Intestinal/etiología , Neumatosis Cistoide Intestinal/diagnóstico , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Femenino , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicaciones , Adulto , COVID-19/complicaciones , Tomografía Computarizada por Rayos X , SARS-CoV-2 , Trasplante Homólogo/efectos adversos
2.
Hematology ; 29(1): 2399361, 2024 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-39263910

RESUMEN

OBJECTIVE: The α-globin fusion gene between the HBA2 and HBAP1 genes, is clinically important in thalassemia screening because this fusion gene can cause severe hemoglobin (Hb) H disease when combined with α0 -thalassemia (α0 -thal). In this study, we evaluate the red blood cell parameters of α-thalassemia fusion gene in southern China. METHOD: Study samples suspected of α-thalassemia fusion gene were collected and confirmed by PCR-sequencing from one medical lab center in southern China. Their genotypes and phenotypes were analyzed. RESULTS: A total of 266 cases of α-thalassemia fusion gene were confirmed in our lab from 2017 to 2023, most of them were from Hainan province (169 cases) and Huadu district of Guangzhou (21 cases), the nationality of 143 cases from Hainan was identified, with 71.3% (102/143) being from the Li minority. The Hb, MCV, MCH for αα/(αα)fusion in adult males were 143.5±11.83g/L, 81.51±4.39 fl, and 26.26±1.29 pg, respectively; and in females, they were 126.69±12.89 g/L, 80.10±4.05 fl, 25.8±2.04 pg, respectively. All 12 cases (αα) Fusion/ --SEA showed anemia with decreased Hb, MCV and MCH. CONCLUSION: The carriers of α-globin fusion gene heterozygotes are clinically silent and exhibit an α+ phenotype. Individuals with (αα)Fusion/--SEA show apparent anemia. This α-globin fusion gene is relatively common in southern China, specifically among the Li minority of Hainan province. Therefore, it should be taken into account for genetic counseling purposes.


Asunto(s)
Genotipo , Fenotipo , Talasemia alfa , Humanos , Talasemia alfa/genética , Talasemia alfa/epidemiología , Masculino , Femenino , China/epidemiología , Adulto , Globinas alfa/genética , Persona de Mediana Edad , Niño , Adolescente , Adulto Joven
4.
Artículo en Inglés | MEDLINE | ID: mdl-39197650

RESUMEN

BACKGROUND: Interscalene catheters (ISC) are considered as the gold standard for perioperative pain control after total shoulder arthroplasty (TSA). Liposomal bupivacaine (LB) for interscalene blocks (ISB) or the addition of dexamethasone to ISBs have both presented as additional options for extended analgesia. We aimed to compare the efficacy of LB to a single shot ISB (SISB) with added dexamethasone to an ISC. We hypothesized that a single injection of LB or an ISB with a dexamethasone will provide non-inferior duration and quality of analgesia compared to ISC. METHODS: A single centered triple blinded randomized controlled trial evaluated patients undergoing elective primary TSA. Patients were randomized to 3 groups, Group A (control): 0.5% bupivacaine 15 ml with a rescue catheter left in situ (0.125% bupivacaine infusion), Group B: 0.5% bupivacaine 14 ml with 4mg (1 ml) dexamethasone with a catheter left in situ (saline infusion), Group C: 10 ml of liposomal bupivacaine (133 mg) with 0.5% bupivacaine 5 ml, with a catheter left in situ (saline infusion). The primary outcome was the worst NRS (numeric rating scale) measured on arrival to PACU, 6 hours, 12 hours, 24 hours, and 36 hours postoperatively. Secondary outcomes recorded were time to first analgesic request, intraoperative opioid consumption, total inpatient opioid consumption, arm weakness, arm numbness, time of analgesia duration, time of motor recovery, sensory testing using pinprick on POD1, Q36, Q48, hand strength assessment using dynamometer POD1, Q36, Q48, PACU and hospital length of stay. RESULTS: We analyzed 72 patients in 3 groups (Group A 24, group B 24, Group C 24). The pre-surgery physical function scores were similar between groups. The change in postoperative pain was not different among the three groups. All 3 groups demonstrated an increase in the postoperative values, a change that was not statistically significant between groups. Likewise, no difference in the mental function score was seen within or between groups. No differences in sleep quality or satisfaction were seen among groups (P values 0.405 and 1.00, respectively). No adverse events were reported in all groups. CONCLUSIONS: No significant difference was demonstrated between a single injection ISB with dexamethasone, a LB injection and an ISC. Given the equivalence in analgesia provided with these three modalities, providers should carefully consider the option that best fits each patient. Thus, a single injection of LB or single injection of bupivacaine with dexamethasone provides similar analgesic efficacy compared to ISC.

5.
Front Immunol ; 15: 1356414, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39114654

RESUMEN

Background: The gut microbiota significantly influences the onset and progression of juvenile idiopathic arthritis (JIA) and associated uveitis (JIAU); however, the causality remains unclear. This study aims to establish a causal link between gut microbiota and JIA or JIAU. Methods: Using publicly available genome-wide association studies (GAWS) summary data, we conducted a two-sample Mendelian randomisation (MR) analysis employing various methods, namely inverse variance weighted (IVW), simple mode, weighted mode, weighted median and MR-Egger regression methods, to assess the causal association between JIA or JIAU and gut microbiota. Sensitivity analyses, including Cochrane's Q test, MR-Egger intercept test, leave-one-out analysis and MR-PRESSO, were performed to evaluate the robustness of the MR results. Subsequently, reverse MR analysis was conducted to determine causality between gene-predicted gut microbiota abundance and JIA or JIAU. Results: The MR analysis revealed a causal association between gut microbiota abundance variations and JIA or JIAU risk. Specifically, the increased abundance of genus Ruminococcaceae UCG013 (OR: 0.055, 95%CI: 0.006-0.103, p = 0.026) and genus Ruminococcaceae UCG003 (ß: 0.06, 95%CI: 0.003-0.117, p = 0.041) correlated with an increased risk of JIA, while genus Lachnospiraceae UCG001 (OR: 0.833, 95%CI: 0.699~0.993, p = 0.042) was associated with a reduced risk of JIA, among others. Sensitivity analysis confirmed MR analysis robustness. Conclusions: This study provides substantial evidence supporting a causal association between genetically predicted gut microbiota and JIA or JIAU. It highlights the significant role of intestinal flora in JIA or JIAU development, suggesting their potential as novel biomarkers for diagnosis and prevention. These findings offer valuable insights to mitigate the impact of JIA or JIAU.


Asunto(s)
Artritis Juvenil , Microbioma Gastrointestinal , Estudio de Asociación del Genoma Completo , Análisis de la Aleatorización Mendeliana , Uveítis , Humanos , Microbioma Gastrointestinal/genética , Artritis Juvenil/microbiología , Artritis Juvenil/genética , Uveítis/microbiología , Uveítis/etiología , Uveítis/genética , Predisposición Genética a la Enfermedad , Polimorfismo de Nucleótido Simple
6.
Adv Sci (Weinh) ; : e2402236, 2024 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-39054679

RESUMEN

Bioelectronic medicine is emerging as a powerful approach for restoring lost endogenous functions and addressing life-altering maladies such as cardiac disorders. Systems that incorporate both modulation of cellular function and recording capabilities can enhance the utility of these approaches and their customization to the needs of each patient. Here is report an integrated optogenetic and bioelectronic platform for stable and long-term stimulation and monitoring of cardiomyocyte function in vitro. Optical inputs are achieved through the expression of a photoactivatable adenylyl cyclase, that when irradiated with blue light causes a dose-dependent and time-limited increase in the secondary messenger cyclic adenosine monophosphate with subsequent rise in autonomous cardiomyocyte beating rate. Bioelectronic readouts are obtained through a multi-electrode array that measures real-time electrophysiological responses at 32 spatially-distinct locations. Irradiation at 27 µW mm-2 results in a 14% elevation of the beating rate within 20-25 min, which remains stable for at least 2 h. The beating rate can be cycled through "on" and "off" light states, and its magnitude is a monotonic function of irradiation intensity. The integrated platform can be extended to stretchable and flexible substrates, and can open new avenues in bioelectronic medicine, including closed-loop systems for cardiac regulation and intervention, for example, in the context of arrythmias.

7.
ISME J ; 18(1)2024 Jan 08.
Artículo en Inglés | MEDLINE | ID: mdl-39083033

RESUMEN

In subsurface biodegraded oil reservoirs, methanogenic biodegradation of crude oil is a common process. This process was previously assigned to the syntrophy of hydrocarbon-degrading bacteria and methanogenic archaea. Recent studies showed that archaea of the Candidatus Methanoliparum named as alkylotrophic methanogens couple hydrocarbon degradation and methane production in a single archaeon. To assess the geochemical role of Ca. Methanoliparum, we analyzed the chemical and microbial composition and metabolites of 209 samples from 15 subsurface oil reservoirs across China. Gas chromatography-mass spectrometry analysis revealed that 92% of the tested samples were substantially degraded. Molecular analysis showed that 85% of the tested samples contained Ca. Methanoliparum, and 52% of the tested samples harbored multiple alkyl-coenzyme M derivatives, the intercellular metabolites of alkylotrophic archaea. According to metagenomic and metatranscriptomic analyses, Ca. Methanoliparum dominates hydrocarbon degradation in biodegraded samples from the Changqing, Jiangsu, and Shengli (SL) oilfields, and it is persistently present as shown in a 15-year-long sampling effort at the Shengli oilfield. Together, these findings demonstrate that Ca. Methanoliparum is a widely distributed oil degrader in reservoirs of China, suggesting that alkylotrophic methanogenesis by archaea plays a key role in the alteration of oil reservoirs, thereby expanding our understanding of biogeochemical process in the deep biosphere.


Asunto(s)
Archaea , Biodegradación Ambiental , Hidrocarburos , Metano , Yacimiento de Petróleo y Gas , China , Hidrocarburos/metabolismo , Yacimiento de Petróleo y Gas/microbiología , Metano/metabolismo , Anaerobiosis , Archaea/metabolismo , Archaea/genética , Archaea/clasificación , Petróleo/metabolismo , Metagenómica , Filogenia
8.
Biochem Biophys Res Commun ; 732: 150406, 2024 Nov 05.
Artículo en Inglés | MEDLINE | ID: mdl-39032412

RESUMEN

Lignocellulose, the most abundant organic waste on Earth, is of economic value because it can be converted into biofuels like ethanol by enzymes such as ß-glucosidase. This study involved cloning a ß-glucosidase gene named JBG from the rumen fungus Neocallimastix patriciarum J11. When expressed recombinantly in Escherichia coli, the rJBG enzyme exhibited significant activity, hydrolyzing 4-nitrophenyl-ß-d-glucopyranoside and cellobiose to release glucose. Surprisingly, the rJBG enzyme also showed hydrolytic activity against ß-glucan, breaking it down into glucose, indicating that the rJBG enzyme possesses both ß-glucosidase and ß-glucanase activities, a characteristic rarely found in ß-glucosidases. When the JBG gene was expressed in Saccharomyces cerevisiae and the transformants were inoculated into a medium containing ß-glucan as the sole carbon source, the ethanol concentration in the culture medium increased from 0.17 g/L on the first day to 0.77 g/L on the third day, reaching 1.3 g/L on the fifth day, whereas no ethanol was detected in the yeast transformants containing the recombinant plasmid pYES-Sur under the same conditions. These results demonstrate that yeast transformants carrying the JBG gene can directly saccharify ß-glucan and ferment it to produce ethanol. This gene, with its dual ß-glucosidase and ß-glucanase activities, simplifies and reduces the cost of the typical process of converting lignocellulose into bioethanol using enzymes and yeast.


Asunto(s)
Neocallimastix , Proteínas Recombinantes , beta-Glucosidasa , beta-Glucosidasa/genética , beta-Glucosidasa/metabolismo , Proteínas Recombinantes/metabolismo , Proteínas Recombinantes/genética , Animales , Neocallimastix/genética , Neocallimastix/metabolismo , Neocallimastix/enzimología , Rumen/microbiología , Clonación Molecular , Saccharomyces cerevisiae/genética , Saccharomyces cerevisiae/metabolismo , Escherichia coli/genética , Escherichia coli/metabolismo , Proteínas Fúngicas/genética , Proteínas Fúngicas/metabolismo , beta-Glucanos/metabolismo , Etanol/metabolismo , Lignina/metabolismo
9.
Nat Commun ; 15(1): 5102, 2024 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-38877009

RESUMEN

Tomato (Solanum lycopersicum) is one of the world's most important food crops, and as such, its production needs to be protected from infectious diseases that can significantly reduce yield and quality. Here, we survey the effector-triggered immunity (ETI) landscape of tomato against the bacterial pathogen Pseudomonas syringae. We perform comprehensive ETI screens in five cultivated tomato varieties and two wild relatives, as well as an immunodiversity screen on a collection of 149 tomato varieties that includes both wild and cultivated varieties. The screens reveal a tomato ETI landscape that is more limited than what was previously found in the model plant Arabidopsis thaliana. We also demonstrate that ETI eliciting effectors can protect tomato against P. syringae infection when the effector is delivered by a non-virulent strain either prior to or simultaneously with a virulent strain. Overall, our findings provide a snapshot of the ETI landscape of tomatoes and demonstrate that ETI can be used as a biocontrol treatment to protect crop plants.


Asunto(s)
Enfermedades de las Plantas , Inmunidad de la Planta , Pseudomonas syringae , Solanum lycopersicum , Solanum lycopersicum/microbiología , Solanum lycopersicum/inmunología , Pseudomonas syringae/inmunología , Pseudomonas syringae/patogenicidad , Enfermedades de las Plantas/microbiología , Enfermedades de las Plantas/inmunología , Arabidopsis/inmunología , Arabidopsis/microbiología , Proteínas de Plantas/inmunología , Virulencia , Regulación de la Expresión Génica de las Plantas , Proteínas Bacterianas/metabolismo , Proteínas Bacterianas/inmunología
10.
Quant Imaging Med Surg ; 14(4): 2904-2915, 2024 Apr 03.
Artículo en Inglés | MEDLINE | ID: mdl-38617179

RESUMEN

Background: The effects of glycemic status on coronary physiology have not been well evaluated. This study aimed to investigate changes in coronary physiology by using angiographic quantitative flow ratio (QFR), and their relationships with diabetes mellitus (DM) and glycemic control status. Methods: This retrospective cohort study included 530 patients who underwent serial coronary angiography (CAG) measurements between January 2016 and December 2021 at Tongji Hospital of Tongji University. Based on baseline and follow-up angiograms, 3-vessel QFR (3V-QFR) measurements were performed. Functional progression of coronary artery disease (CAD) was defined as a change in 3V-QFR (Δ3V-QFR = 3V-QFRfollow-up - 3V-QFRbaseline) ≤-0.05. Univariable and multivariable logistic regression analyses were applied to identify the independent predictors of coronary functional progression. Subgroup analysis according to diabetic status was performed. Results: During a median interval of 12.1 (10.6, 14.3) months between the two QFR measurements, functional progression was observed in 169 (31.9%) patients. Follow-up glycosylated hemoglobin (HbA1c) was predictive of coronary functional progression with an area under the curve (AUC) of 0.599 [95% confidence interval (CI): 0.546-0.651; P<0.001] in the entire population. Additionally, the Δ3V-QFR values were significantly lower in diabetic patients with HbA1c ≥7.0% compared to those with well-controlled HbA1c or non-diabetic patients [-0.03 (-0.09, 0) vs. -0.02 (-0.05, 0.01) vs. -0.02 (-0.05, 0.02); P=0.002]. In a fully adjusted multivariable logistics analysis, higher follow-up HbA1c levels were independently associated with progression in 3V-QFR [odds ratio (OR), 1.263; 95% CI: 1.078-1.479; P=0.004]. Furthermore, this association was particularly strong in diabetic patients (OR, 1.353; 95% CI: 1.082-1.693; P=0.008) compared to patients without DM. Conclusions: Among patients with established CAD, on-treatment HbA1c levels were independently associated with progression in physiological atherosclerotic burden, especially in patients with DM.

11.
Genes (Basel) ; 15(4)2024 04 19.
Artículo en Inglés | MEDLINE | ID: mdl-38674448

RESUMEN

The mitochondrial genome (mitogenome) of Actinidia macrosperma, a traditional medicinal plant within the Actinidia genus, remains relatively understudied. This study aimed to sequence the mitogenome of A. macrosperma, determining its assembly, informational content, and developmental expression. The results revealed that the mitogenome of A. macrosperma is circular, spanning 752,501 bp with a GC content of 46.16%. It comprises 63 unique genes, including 39 protein-coding genes (PCGs), 23 tRNA genes, and three rRNA genes. Moreover, the mitogenome was found to contain 63 SSRs, predominantly mono-nucleotides, as well as 25 tandem repeats and 650 pairs of dispersed repeats, each with lengths equal to or greater than 60, mainly comprising forward repeats and palindromic repeats. Moreover, 53 homologous fragments were identified between the mitogenome and chloroplast genome (cp-genome), with the longest segment measuring 4296 bp. This study represents the initial report on the mitogenome of the A. macrosperma, providing crucial genetic materials for phylogenetic research within the Actinidia genus and promoting the exploitation of species genetic resources.


Asunto(s)
Actinidia , Genoma Mitocondrial , Filogenia , Genoma Mitocondrial/genética , Actinidia/genética , Genoma del Cloroplasto/genética , ARN de Transferencia/genética , Composición de Base/genética
12.
World J Gastrointest Surg ; 16(1): 143-154, 2024 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-38328316

RESUMEN

BACKGROUND: The nutritional status is closely related to the prognosis of liver transplant recipients, but few studies have reported the role of preoperative objective nutritional indices in predicting liver transplant outcomes. AIM: To compare the predictive value of various preoperative objective nutritional indicators for determining 30-d mortality and complications following liver transplantation (LT). METHODS: A retrospective analysis was conducted on 162 recipients who underwent LT at our institution from December 2019 to June 2022. RESULTS: This study identified several independent risk factors associated with 30-d mortality, including blood loss, the prognostic nutritional index (PNI), the nutritional risk index (NRI), and the control nutritional status. The 30-d mortality rate was 8.6%. Blood loss, the NRI, and the PNI were found to be independent risk factors for the occurrence of severe postoperative complications. The NRI achieved the highest prediction values for 30-d mortality [area under the curve (AUC) = 0.861, P < 0.001] and severe complications (AUC = 0.643, P = 0.011). Compared to those in the high NRI group, the low patients in the NRI group had lower preoperative body mass index and prealbumin and albumin levels, as well as higher alanine aminotransferase and total bilirubin levels, Model for End-stage Liver Disease scores and prothrombin time (P < 0.05). Furthermore, the group with a low NRI exhibited significantly greater incidences of intraabdominal bleeding, primary graft nonfunction, and mortality. CONCLUSION: The NRI has good predictive value for 30-d mortality and severe complications following LT. The NRI could be an effective tool for transplant surgeons to evaluate perioperative nutritional risk and develop relevant nutritional therapy.

13.
Clin J Pain ; 40(5): 320-332, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38268183

RESUMEN

BACKGROUND: Ultrasound-guided pericapsular nerve group (PENG) block is an emerging regional anesthesia technique that may provide analgesia for patients undergoing total hip arthroplasties (THA). There are clinical studies comparing this fascial plane block to other established methods; however, evidence on the actual efficacy of this block for THA continues to evolve. OBJECTIVE: Available clinical studies conducted over the past 4 years were reviewed to evaluate the analgesic efficacy and effectiveness of PENG block in patients undergoing THAs. METHODS: A meta-analysis of randomized controlled trials (RCTs) in patients undergoing THA, where PENG block was compared to no block, placebo/sham block (injection with saline), or other analgesic techniques including suprainguinal fascia iliaca block (FIB), or periarticular infiltration (PAI) was performed. Our primary outcome was opioid consumption during the first 24 hours. Secondary outcomes were postoperative rest and dynamic pain scores at 6-12, 24 and 48 hours, block performance time, sensory-motor assessment, quadriceps weakness, the incidence of postoperative falls, first analgesic request, block and opioid-related complications, surgical complications, patient satisfaction scores, postanesthesia care unit length of stay, hospital length of stay, and functional and quality of life outcomes. RESULTS: We included 12 RCTs with a total of 705 patients. Data showed that PENG block decreased 24-hour oral morphine milligram equivalent consumption by a mean difference (MD) of 3.75 mg (95% CI: -5.96,-1.54; P =0.0009). No statistically significant differences in rest or dynamic pain were found, except for a modest MD reduction in dynamic pain score of 0.55 points (95% CI: -0.98, -0.12; P =0.01), measured 24 hours after surgery in favor of PENG block. CONCLUSIONS: Our systematic review and meta-analysis suggest that PENG block provides better analgesia, measured as MME use, in the first 24 hours after THA, with no real impact on postoperative VAS scores. Despite statistical significance, the high heterogeneity across RCTs implies that PENG's benefits may not surpass the minimal clinically important difference threshold for us to recommend PENG as best practice in THA.


Asunto(s)
Artroplastia de Reemplazo de Cadera , Bloqueo Nervioso , Dolor Postoperatorio , Humanos , Bloqueo Nervioso/métodos , Dolor Postoperatorio/tratamiento farmacológico , Ensayos Clínicos Controlados Aleatorios como Asunto
14.
Insect Sci ; 31(2): 613-632, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37479953

RESUMEN

Chrysopidae are a family of Neuroptera of significant importance in biocontrol against agricultural pests because of their predatory larvae. Currently, the taxonomy of Chrysopidae lacks a comprehensive revision, which impedes the exploration of species diversity as well as the selection and the conservation of green lacewings as biocontrol agents. We have established a DNA barcode reference library of the Chinese green lacewings based on an approximately complete sampling (95.63%) in 25 of the 34 provincial regions in China, comprising 1 119 barcodes of 25 genera and 197 species (representing 85% genera and 43.62% species from China). Combining other 1 049 high quality green lacewing DNA barcodes, we first inferred the optimal threshold of interspecific genetic divergence (1.87%) for successful species identification in multiple simulated scenarios based on present data. We further inferred the threshold of genetic divergence (7.77%) among genera with biocontrol significance. The inference and performance of the threshold appears to be mainly associated with the completeness of sampling, the proportion of closely related species, and the analytical approaches. Six new combinations, Apertochrysa platypa (Yang & Yang, 1991) comb. nov., Apertochrysa shennongana (Yang & Wang, 1990) comb. nov., Apertochrysa pictifacialis (Yang, 1988) comb. nov., Apertochrysa helana (Yang, 1993) comb. nov., Plesiochrysa rosulata (Yang & Yang, 2002) comb. nov., and Signochrysa hainana (Yang & Yang, 1991), are proposed according to integrative species delimitation. Our library and optimal threshold will effectively facilitate the exploration of species diversity of green lacewings. Our study also provides a methodological reference in molecular delimitation of other insects.


Asunto(s)
Código de Barras del ADN Taxonómico , Insectos , Animales , Insectos/genética , Larva , China
16.
Ultrason Sonochem ; 101: 106716, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38071854

RESUMEN

OBJECTIVES: Focal liver lesion (FLL) is a prevalent finding in cross-sectional imaging, and distinguishing between benign and malignant FLLs is crucial for liver health management. While shear wave elastography (SWE) serves as a conventional quantitative ultrasound tool for evaluating FLLs, ultrasound tissue scatterer distribution imaging (TSI) emerges as a novel technique, employing the Nakagami statistical distribution parameter to estimate backscattered statistics for tissue characterization. In this prospective study, we explored the potential of TSI in characterizing FLLs and evaluated its diagnostic efficacy with that of SWE. METHODS: A total of 235 participants (265 FLLs; the study group) were enrolled to undergo abdominal examinations, which included data acquisition from B-mode, SWE, and raw radiofrequency data for TSI construction. The area under the receiver operating characteristic curve (AUROC) was used to evaluate performance. A dataset of 20 patients (20 FLLs; the validation group) was additionally acquired to further evaluate the efficacy of the TSI cutoff value in FLL characterization. RESULTS: In the study group, our findings revealed that while SWE achieved a success rate of 49.43 % in FLL measurements, TSI boasted a success rate of 100 %. In cases where SWE was effectively implemented, the AUROCs for characterizing FLLs using SWE and TSI stood at 0.84 and 0.83, respectively. For instances where SWE imaging failed, TSI achieved an AUROC of 0.78. Considering all cases, TSI presented an overall AUROC of 0.81. There was no statistically significant difference in AUROC values between TSI and SWE (p > 0.05). In the validation group, using a TSI cutoff value of 0.67, the AUROC for characterizing FLLs was 0.80. CONCLUSIONS: In conclusion, ultrasound TSI holds promise as a supplementary diagnostic tool to SWE for characterizing FLLs.


Asunto(s)
Diagnóstico por Imagen de Elasticidad , Neoplasias Hepáticas , Humanos , Diagnóstico por Imagen de Elasticidad/métodos , Estudios Prospectivos , Diagnóstico Diferencial , Ultrasonografía , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/patología
17.
Insects ; 14(11)2023 Nov 14.
Artículo en Inglés | MEDLINE | ID: mdl-37999077

RESUMEN

Chrysopidae (green lacewings) are a cosmopolitan and species-rich family of Neuroptera, with remarkable significance of biological control against various agricultural and forestry pests. However, the phylogenetic position of Chrysopidae in Neuroptera and the internal relationships within the family remain equivocal among previous studies based on different types of data and sampling. Here we sequenced the mitochondrial genomes (mitogenomes) of two species of the genus Ankylopteryx in the chrysopine tribe Ankylopterygini for the first time. The characteristics of these mitogenomes were analyzed in comparison with other green lacewing mitogenomes published to date. In the phylogeny herein reconstructed based on mitogenomes, Chrysopinae were recovered as the sister group to Apochrysinae + Nothochrysinae. Within the subfamily of Chrysopinae, Nothancylini were recovered as the sister group to (Leucochrysini + Belonopterygini) + (Ankylopterygini + Chrysopini). The divergence time estimation suggested an Early Cretaceous initial divergence within the extant Chrysopidae. Within Chrysopinae, the four tribes except Nothancylini diverged around mid-Cretaceous.

18.
Angiology ; : 33197231218616, 2023 Nov 23.
Artículo en Inglés | MEDLINE | ID: mdl-37994827

RESUMEN

The association between coronary physiological progression and clinical outcomes has not been investigated. A total of 421 patients who underwent serial coronary angiography at least 6 months apart were included. Total physiological atherosclerotic burden was characterized by sum of quantitative flow ratio in 3 epicardial vessels (3V-QFR). The relationships of the 3V-QFR and its longitudinal change (△3V-QFR) with major adverse cardiovascular events (MACE) were explored. 3V-QFR values derived from follow-up angiograms were slightly lower compared with baseline (2.85 [2.77, 2.90] vs 2.86 [2.80, 2.90], P < .001). The median △3V-QFR value was -0.01 (-0.05, 0.02). The multivariable models demonstrated that follow-up 3V-QFR and △3V-QFR were independently associated with MACE (both P < .05). Patients with both low follow-up 3V-QFR (≤2.78) and low △3V-QFR (≤-0.05) presented 3 times higher risk of MACE than those without (hazard ratio: 2.953, 95% confidence interval 1.428-6.104, P = .003). Furthermore, adding patient-level 3V-QFR and △3V-QFR to clinical model significantly improved the predictability for MACE. In conclusion, total physiological atherosclerotic burden and its progression can provide incremental prognostic value over clinical characteristics, supporting the use of coronary physiology in the evaluation of disease progression and for the identification of vulnerable patients.

19.
Zhongguo Dang Dai Er Ke Za Zhi ; 25(10): 1016-1021, 2023 Oct 15.
Artículo en Chino | MEDLINE | ID: mdl-37905757

RESUMEN

OBJECTIVES: To study the left heart structure and functional characteristics of term neonates with intrauterine growth restriction (IUGR). METHODS: This study included 86 term neonates with IUGR admitted to the Neonatal Ward of Beijing Friendship Hospital, Capital Medical University from January 2019 to January 2022 as the IUGR group, as well as randomly selected 86 term neonates without IUGR born during the same period as the non-IUGR group. The clinical data and echocardiographic data were compared between the two groups. RESULTS: The analysis of left heart structure and function showed that compared with the non-IUGR group, the IUGR group had significantly lower left ventricular mass, left ventricular end-diastolic diameter, left ventricular end-systolic diameter, left atrial diameter, end-diastolic interventricular septal thickness, left ventricular posterior wall thickness, left ventricular end-diastolic volume, left ventricular end-systolic volume, and stroke volume (P<0.05) and significantly higher ratio of end-diastolic interventricular septal thickness to left ventricular posterior wall thickness, proportion of neonates with a mitral peak E/A ratio of ≥1, and cardiac index (P<0.05). The Spearman correlation analysis suggested that stroke volume was positively correlated with birth weight and body surface area (rs=0.241 and 0.241 respectively; P<0.05) and that the ratio of end-diastolic interventricular septal thickness to left ventricular posterior wall thickness was negatively correlated with birth weight and body surface area (rs=-0.229 and -0.225 respectively; P<0.05). CONCLUSIONS: The left ventricular systolic function of neonates with IUGR is not significantly different from that of neonates without IUGR. However, the ventricular septum is thicker in neonates with IUGR. This change is negatively correlated with birth weight and body surface area. The left ventricular diastolic function may be impaired in neonates with IUGR.


Asunto(s)
Retardo del Crecimiento Fetal , Corazón , Humanos , Recién Nacido , Peso al Nacer , Ecocardiografía , Ventrículos Cardíacos/diagnóstico por imagen , Función Ventricular Izquierda
20.
Sleep Breath ; 2023 Sep 29.
Artículo en Inglés | MEDLINE | ID: mdl-37775619

RESUMEN

PURPOSE: Intermittent hypoxia (IH) is a hallmark of obstructive sleep apnea (OSA), which is related to tumorigenesis and progression. Although micro-ribonucleic acid-210-3p (miR-210-3p) is correlated with hypoxia-induced tumor development, its role in the relationship between IH and tumor function remains poorly understood. The present work focused on elucidating the molecular mechanism through which miR-210-3p drives tumor progression under IH. METHODS: MiR-210-3p levels were quantified within tumor samples from patients with lung adenocarcinoma who had or did not have OSA. Correlations between miR-210-3p and polysomnographic variables were analyzed. For in vitro experiments, miR-210-3p was inhibited or overexpressed via transfection under IH conditions. Cell viability, growth, invasion and migration assays were carried out. For in vivo modeling of IH using mouse xenografts, a miR-210-3p antagomir was intratumorally injected, tumor biological behaviors were evaluated, and reverse transcription-quantitative polymerase chain reaction (RT-qPCR), immunohistochemistry and western blot were carried out for detecting miR-210-3p and E2F transcription factor 3 (E2F3) expression. RESULTS: For patients with lung adenocarcinoma and OSA, high miR-210-3p levels showed positive relation to polysomnographic variables, such as oxygen desaturation index, apnea-hypopnea index, and proportion of total sleep time with oxygen saturation in arterial blood < 90%. IH enhanced tumor viability, proliferation, migration, and invasion, downregulated E2F3 expression, and increased miR-210-3-p levels. miR-210-3p overexpression induced similar changes. These changes were reversed by miR-210-3p inhibition in vitro or miR-210-3p antagomir through intratumoral injection in vivo. CONCLUSIONS: IH-induced tumor development is driven through miR-210-3p by E2F3 suppression. MiR-210-3p represents a potential therapeutic target among patients with concomitant cancer and OSA.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA