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1.
Nat Mater ; 2024 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-38664497

RESUMO

In situ tailoring of two-dimensional materials' phases under external stimulus facilitates the manipulation of their properties for electronic, quantum and energy applications. However, current methods are mainly limited to the transitions among phases with unchanged chemical stoichiometry. Here we propose on-device phase engineering that allows us to realize various lattice phases with distinct chemical stoichiometries. Using palladium and selenide as a model system, we show that a PdSe2 channel with prepatterned Pd electrodes can be transformed into Pd17Se15 and Pd4Se by thermally tailoring the chemical composition ratio of the channel. Different phase configurations can be obtained by precisely controlling the thickness and spacing of the electrodes. The device can be thus engineered to implement versatile functions in situ, such as exhibiting superconducting behaviour and achieving ultralow-contact resistance, as well as customizing the synthesis of electrocatalysts. The proposed on-device phase engineering approach exhibits a universal mechanism and can be expanded to 29 element combinations between a metal and chalcogen. Our work highlights on-device phase engineering as a promising research approach through which to exploit fundamental properties as well as their applications.

2.
Heliyon ; 10(7): e29215, 2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38623200

RESUMO

Renal cell carcinoma (RCC) is a frequent urological malignancy characterized by a high rate of metastasis and lethality. The treatment strategy for advanced RCC has moved through multiple iterations over the past three decades. Initially, cytokine treatment was the only systemic treatment option for patients with RCC. With the development of medicine, antiangiogenic agents targeting vascular endothelial growth factor and mammalian target of rapamycin and immunotherapy, immune checkpoint inhibitors (ICIs) have emerged and received several achievements in the therapeutics of advanced RCC. However, ICIs have still not brought completely satisfactory results due to drug resistance and undesirable side effects. For the past years, the interests form researchers have been attracted by the combination of ICIs and targeted therapy for advanced RCC and the angiogenesis and immunogenic tumor microenvironmental variations in RCC. Therefore, we emphasize the potential principle and the clinical progress of ICIs combined with targeted treatment of advanced RCC, and summarize the future direction.

3.
Emerg Microbes Infect ; 13(1): 2332670, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38646911

RESUMO

This study aimed to provide data for the clinical features of invasive pneumococcal disease (IPD) and the molecular characteristics of Streptococcus pneumoniae isolates from paediatric patients in China. We conducted a multi-centre prospective study for IPD in 19 hospitals across China from January 2019 to December 2021. Data of demographic characteristics, risk factors for IPD, death, and disability was collected and analysed. Serotypes, antibiotic susceptibility, and multi-locus sequence typing (MLST) of pneumococcal isolates were also detected. A total of 478 IPD cases and 355 pneumococcal isolates were enrolled. Among the patients, 260 were male, and the median age was 35 months (interquartile range, 12-46 months). Septicaemia (37.7%), meningitis (32.4%), and pneumonia (27.8%) were common disease types, and 46 (9.6%) patients died from IPD. Thirty-four serotypes were detected, 19F (24.2%), 14 (17.7%), 23F (14.9%), 6B (10.4%) and 19A (9.6%) were common serotypes. Pneumococcal isolates were highly resistant to macrolides (98.3%), tetracycline (94.1%), and trimethoprim/sulfamethoxazole (70.7%). Non-sensitive rates of penicillin were 6.2% and 83.3% in non-meningitis and meningitis isolates. 19F-ST271, 19A-ST320 and 14-ST876 showed high resistance to antibiotics. This multi-centre study reports the clinical features of IPD and demonstrates serotype distribution and antibiotic resistance of pneumococcal isolates in Chinese children. There exists the potential to reduce IPD by improved uptake of pneumococcal vaccination, and continued surveillance is warranted.


Assuntos
Antibacterianos , Tipagem de Sequências Multilocus , Infecções Pneumocócicas , Sorogrupo , Streptococcus pneumoniae , Humanos , Streptococcus pneumoniae/genética , Streptococcus pneumoniae/efeitos dos fármacos , Streptococcus pneumoniae/classificação , Streptococcus pneumoniae/isolamento & purificação , Masculino , Infecções Pneumocócicas/microbiologia , Infecções Pneumocócicas/epidemiologia , Infecções Pneumocócicas/mortalidade , Feminino , Pré-Escolar , China/epidemiologia , Lactente , Antibacterianos/farmacologia , Estudos Prospectivos , Testes de Sensibilidade Microbiana , Hospitais/estatística & dados numéricos , Criança , Fatores de Risco , População do Leste Asiático
4.
J Fungi (Basel) ; 10(4)2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38667971

RESUMO

Species of the genus Thelephora (Thelephorales, Thelephoraceae) are ectomycorrhizal symbionts of coniferous and broad-leaved plants, and some of them are well-known edible mushrooms, making it an exceptionally important group ecologically and economically. However, the diversity of the species from China has not been fully elucidated. In this study, we conducted a phylogenetic analysis based on the internal transcribed spacer (ITS) regions, using Maximum Likelihood and Bayesian analyses, along with morphological observations of this genus. Four new species from China are proposed, viz., T. dactyliophora, T. lacunosa, T. petaloides, and T. pinnatifida. In addition, T. sikkimensis originally described from India is reported for the first time from China. Thelephora dactyliophora, T. pinnatifida, and T. sikkimensis are distributed in subtropical forests and mainly associated with plants of the families Fagaceae and Pinaceae. Thelephora lacunosa and T. petaloides are distributed in tropical to subtropical forests. Thelephora lacunosa is mainly associated with plants of the families Fagaceae and Pinaceae, while T. petaloides is mainly associated with plants of the family Fagaceae. Line drawings of microstructures, color pictures of fresh basidiomes, and detailed descriptions of these five species are provided.

5.
Eur Radiol ; 2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38639911

RESUMO

OBJECTIVES: To evaluate the diagnostic performance of quantitative magnetic resonance (MR) imaging biomarkers in distinguishing between inflammatory pancreatic masses (IPM) and pancreatic cancer (PC). METHODS: A literature search was conducted using PubMed, Embase, the Cochrane Library, and Web of Science through August 2023. Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2) was used to evaluate the risk of bias and applicability of the studies. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio were calculated using the DerSimonian-Laird method. Univariate meta-regression analysis was used to identify the potential factors of heterogeneity. RESULTS: Twenty-four studies were included in this meta-analysis. The two main types of IPM, mass-forming pancreatitis (MFP) and autoimmune pancreatitis (AIP), differ in their apparent diffusion coefficient (ADC) values. Compared with PC, the ADC value was higher in MFP but lower in AIP. The pooled sensitivity/specificity of ADC were 0.80/0.85 for distinguishing MFP from PC and 0.82/0.84 for distinguishing AIP from PC. The pooled sensitivity/specificity for the maximal diameter of the upstream main pancreatic duct (dMPD) was 0.86/0.74, with a cutoff of dMPD ≤ 4 mm, and 0.97/0.52, with a cutoff of dMPD ≤ 5 mm. The pooled sensitivity/specificity for perfusion fraction (f) was 0.82/0.68, and 0.82/0.77 for mass stiffness values. CONCLUSIONS: Quantitative MR imaging biomarkers are useful in distinguishing between IPM and PC. ADC values differ between MFP and AIP, and they should be separated for consideration in future studies. CLINICAL RELEVANCE STATEMENT: Quantitative MR parameters could serve as non-invasive imaging biomarkers for differentiating malignant pancreatic neoplasms from inflammatory masses of the pancreas, and hence help to avoid unnecessary surgery. KEY POINTS: • Several quantitative MR imaging biomarkers performed well in differential diagnosis between inflammatory pancreatic mass and pancreatic cancer. • The ADC value could discern pancreatic cancer from mass-forming pancreatitis or autoimmune pancreatitis, if the two inflammatory mass types are not combined. • The diameter of main pancreatic duct had the highest specificity for differentiating autoimmune pancreatitis from pancreatic cancer.

6.
Acta Pharm Sin B ; 14(4): 1624-1643, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38572092

RESUMO

HMGA2, a pivotal transcription factor, functions as a versatile regulator implicated in the progression of diverse aggressive malignancies. In this study, mass spectrometry was employed to identify ubiquitin-specific proteases that potentially interact with HMGA2, and USP48 was identified as a deubiquitinating enzyme of HMGA2. The enforced expression of USP48 significantly increased HMGA2 protein levels by inhibiting its degradation, while the deprivation of USP48 promoted HMGA2 degradation, thereby suppressing tumor invasion and metastasis. We discovered that USP48 undergoes SUMOylation at lysine 258, which enhances its binding affinity to HMGA2. Through subsequent phenotypic screening of small molecules, we identified DUB-IN-2 as a remarkably potent pharmacological inhibitor of USP48. Interestingly, the small-molecule inhibitor targeting USP48 induces destabilization of HMGA2. Clinically, upregulation of USP48 or HMGA2 in cancerous tissues is indicative of poor prognosis for patients with colorectal cancer (CRC). Collectively, our study not only elucidates the regulatory mechanism of DUBs involved in HMGA2 stability and validates USP48 as a potential therapeutic target for CRC, but also identifies DUB-IN-2 as a potent inhibitor of USP48 and a promising candidate for CRC treatment.

7.
Endokrynol Pol ; 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38646989

RESUMO

INTRODUCTION: Control attenuation parameters (CAP) can detect nonalcoholic fatty liver disease (NAFLD). Our previous study found that miR-192-5p could screen for acute pancreatitis (AP) in NAFLD patients. This study focused on the role of CAP and miR-192-5p in NAFLD of acute AP. MATERIAL AND METHODS: AP patients and controls were enrolled. Classification of AP patients into NAFLD/AP patients and non-NAFLD/AP was made based on the CAP value. CAP was measured by liver transient elastography. Serum miR-192-5p was measured by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Logistic regression analysis was conducted to examine the risk factors for the development of NAFLD. Receiver operating characteristic (ROC) was assessed for the predictive value of AP severity. RESULTS: NAFLD was more common in the AP group than in the controls (35.00% vs. 8.75%). The CAP value was higher in AP patients with NAFLD than in non-NAFLD, whereas miR-192-5p was significantly lower in AP patients with NAFLD. Additionally, AP patients with NALFD are more likely to experience respiratory failure, systemic inflammatory response syndrome (SIRS), and pancreatic necrosis with longer hospitalisation and exacerbate the incidence of moderate to severe AP. Both miR-192-5p and TG are potential risk factors for the development of NAFLD in patients with AP. Furthermore, the CAP value gradually increased with increasing AP severity, while miR-192-5p gradually decreased. Finally, the sensitivity and specificity of CAP combined with miR-192-5p for the prediction of moderate to severe AP were scored as 82.61% and 82.43%, respectively. CONCLUSIONS: NAFLD exacerbated the progression of AP, and CAP combined with miR-192-5p could predict the severity of AP. Our study may provide more reference for AP disease progression and treatment.

8.
Anal Bioanal Chem ; 2024 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-38632131

RESUMO

The rapid discrimination of bacteria is currently an emerging trend in the fields of food safety, medical detection, and environmental observation. Traditional methods often require lengthy culturing processes, specialized analytical equipment, and bacterial recognition receptors. In response to this need, we have developed a paper-based fluorescence sensor array platform for identifying different bacteria. The sensor array is based on three unique carbon quantum dots (CQDs) as sensing units, each modified with a different antibiotic (polymyxin B, ampicillin, and gentamicin). These antibiotic-modified CQDs can aggregate on the bacterial surface, triggering aggregation-induced fluorescence quenching. The sensor array exhibits varying fluorescent responses to different bacterial species. To achieve low-cost and portable detection, CQDs were formulated into fluorescent ink and used with an inkjet printer to manufacture paper-based sensor arrays. A smartphone was used to collect the responses generated by the bacteria and platform. Diverse machine learning algorithms were utilized to discriminate bacterial types. Our findings showcase the platform's remarkable capability to differentiate among five bacterial strains, within a detection range spanning from 1.0 × 103 CFU/mL to 1.0 × 107 CFU/mL. Its practicality is further validated through the accurate identification of blind bacterial samples. With its cost-effectiveness, ease of fabrication, and high degree of integration, this platform holds significant promise for on-site detection of diverse bacteria.

9.
Sci Total Environ ; 927: 172301, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38599411

RESUMO

The urgency of achieving carbon neutrality needs a reduction in greenhouse gas (GHG) emissions from the textile industry. Printing and dyeing wastewater (PDWW) plays a crucial role in the textile industry. The incomplete assessment of GHG emissions from PDWW impedes the attainment of carbon neutrality. Here, we firstly introduced a more standardized and systematic life-cycle GHG emission accounting method for printing and dyeing wastewater treatment and reuse system (PDWTRS) and proposed possible low-carbon pathways to achieve carbon neutrality. Utilizing case-specific operational data over 12 months, the study revealed that the PDWTRS generated 3.49 kg CO2eq/m3 or 1.58 kg CO2eq/kg CODrem in 2022. This exceeded the GHG intensity of municipal wastewater treatment (ranged from 0.58 to 1.14 kg CO2eq/m3). The primary contributor to GHG emissions was energy consumption (33 %), with the energy mix (sensitivity = 0.38) and consumption (sensitivity = 0.33) exerting the most significant impact on GHG emission intensity respectively. Employing prospective life cycle assessment (LCA), our study explored the potential of the anaerobic membrane bioreactor (AnMBR) to reduce emissions by 0.54 kg CO2eq/m3 and the solar-driven photocatalytic membrane reactor (PMR) to decrease by 0.20 kg CO2eq/m3 by 2050. Our projections suggested that the PDWTRS could achieve net-zero emissions before 2040 through an adoption of progressive transition to low-carbon management, with a GHG emission intensity of -0.10 kg CO2eq/m3 by 2050. Importantly, the study underscored the escalating significance of developing sustainable technologies for reclaimed water production amid water scarcity and climate change. The study may serve as a reminder of the critical role of PDWW treatment in carbon reduction within the textile industry and provides a roadmap for potential pathways towards carbon neutrality for PDWTRS.

10.
Artigo em Inglês | MEDLINE | ID: mdl-38639759

RESUMO

During investigations of invertebrate-associated fungi in Yunnan Province of China, a new species, Sporodiniella sinensis sp. nov., was collected. Morphologically, S. sinensis is similar to Sporodiniella umbellata; however, it is distinguished from S. umbellata by its greater number of sporangiophore branches, longer sporangiophores, larger sporangiospores, and columellae. The novel species exhibits similarities of 91.62 % for internal transcribed spacer (ITS), 98.66-99.10 % for ribosomal small subunit (nrSSU), and 96.36-98.22 % for ribosomal large subunit (nrLSU) sequences, respectively, compared to S. umbellata. Furthermore, phylogenetic analyses based on combined sequences of ITS, nrLSU and nrSSU show that it forms a separate clade in Sporodiniella, and clusters closely with S. umbellata with high statistical support. The phylogenetic and morphological evidence support S. sinensis as a distinct species. Here, it is formally described and illustrated, and compared with other relatives.


Assuntos
Ácidos Graxos , Mucorales , Animais , Filogenia , China , Análise de Sequência de DNA , Composição de Bases , RNA Ribossômico 16S/genética , DNA Bacteriano/genética , Técnicas de Tipagem Bacteriana , Ácidos Graxos/química , Invertebrados
11.
Mol Genet Genomics ; 299(1): 33, 2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38478174

RESUMO

Idiopathic pulmonary fibrosis (IPF) is a chronic pulmonary fibrosis disease that is fatal. Mesenchymal stem cells (MSCs)-secreted exosomes (exos) have been linked to improving PF. Moreover, exosomal microRNAs (miRs) can control the growth of numerous diseases, including lung disorders. Our bioinformatics analysis showed that miR-30b was downregulated in tissue samples from surgical remnants of biopsies or lungs explanted from patients with IPF who underwent pulmonary transplantation. This suggests that miR-30b plays an important role in both the pathogenesis and treatment of IPF. Herein, this research was designed to ascertain the mechanism of MSCs-exos-packaged miR-30b in alleviating PF. The serum was harvested from idiopathic PF (IPF) patients with interstitial pneumonia caused by dermatomyositis and the MLE12 lung epithelial cell fibrosis model was built with TGF-ß1 (10 ng/mL), followed by miR-30b expression determination. TGF-ß1-stimulated MLE12 cells were co-incubated with exos from MSCs with or without Spred2 or Runx1 overexpression, followed by measurement of cell viability and apoptosis. After establishing the IPF mouse model with bleomycin and injecting exos and/or silencing and overexpressing adenovirus vectors, fibrosis evaluation was conducted. In mice and cells, the expression of TGF-ß1, TNF-α, and IL-1ß was tested via ELISA, and the levels of E-cad, ZO-1, α-SMA, and collagen type I via western blot analysis. The promoters of miR-30b, Runx1, and Spred2 were investigated. miR-30b was downregulated in the serum of IPF patients and TGF-ß1-stimulated MLE12 cells. Mechanistically, miR-30b inhibited Spred2 transcription by negatively targeting Runx1. MSCs-exos or MSCs-exo-miR-30b decreased the apoptosis, inflammation, and fibrosis while increasing their viability in TGF-ß1-stimulated MLE12 cells, which was annulled by overexpressing Runx1 or Spred2. Exo-miR-30b decreased Runx1 expression to downregulate Spred2, reducing fibrosis and inflammation in IPF mice. Our results indicated that MSCs-exos-encapsulated miR-30b had a potential function to inhibit PF and part of its function may be achieved by targeting RUNX1 to reduce the Spred2 transcription level. Moreover, this work offered evidence and therapeutic targets for therapeutic strategies for managing clinical PF in patients.


Assuntos
Exossomos , Células-Tronco Mesenquimais , MicroRNAs , Fibrose Pulmonar , Humanos , Camundongos , Animais , Fibrose Pulmonar/genética , Fibrose Pulmonar/metabolismo , Fator de Crescimento Transformador beta1/genética , Fator de Crescimento Transformador beta1/metabolismo , Exossomos/genética , Exossomos/metabolismo , Subunidade alfa 2 de Fator de Ligação ao Core/metabolismo , MicroRNAs/genética , MicroRNAs/metabolismo , Fibrose , Inflamação/metabolismo , Células-Tronco Mesenquimais/metabolismo , Proteínas Repressoras/metabolismo
12.
J Hazard Mater ; 469: 134093, 2024 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-38522199

RESUMO

The inadequate understanding of the biofouling formation mechanism and the absence of effective control have inhibited the commercial application of membrane distillation (MD). In this study, an advanced oxidation process (AOP)/coagulation-coupled (Coag) membrane distillation system was proposed and exhibited the potential for MD ammonia recovery (recovery rate: 94.1%). Extracellular polymeric substances (EPS) and soluble microbial products (SMP) components such as humic acid and tryptophan-like proteins were disrupted and degraded in the digestate. The curtailment and sterilizing efficiency of AOP on biofilm growth was also verified by optical coherence tomography (OCT) in situ real-time monitoring and confocal laser scanning microscopy (CLSM). Peroxymonosulfate (PMS) was activated to generate sulfate (SO4•-) and hydroxyl radicals (HO•), which altered the microbial community. After oxidative treatment, 16 S rRNA sequencing indicated that the dominant phylum of the microbial community evolved into Firmicutes. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis demonstrated that free radicals produced by PMS could disrupt cells' signaling molecules and interactions. In conjunction with these analyses, the mechanisms of response to free radical attack by Gram-negative bacteria, Gram-positive bacteria, and fungi were revealed. This research provided new insights into the field of membrane fouling control for membrane technology resource recovery processes, broadening the impact of AOP applications on microbiological response and fate in the environment.


Assuntos
Incrustação Biológica , Incrustação Biológica/prevenção & controle , Amônia , Destilação , Membranas Artificiais , Biofilmes
13.
J Phys Chem A ; 128(14): 2789-2814, 2024 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-38551452

RESUMO

The OH-initiated photo-oxidation of piperidine and the photolysis of 1-nitrosopiperidine were investigated in a large atmospheric simulation chamber and in theoretical calculations based on CCSD(T*)-F12a/aug-cc-pVTZ//M062X/aug-cc-pVTZ quantum chemistry results and master equation modeling of the pivotal reaction steps. The rate coefficient for the reaction of piperidine with OH radicals was determined by the relative rate method to be kOH-piperidine = (1.19 ± 0.27) × 10-10 cm3 molecule-1 s-1 at 304 ± 2 K and 1014 ± 2 hPa. Product studies show the piperidine + OH reaction to proceed via H-abstraction from both CH2 and NH groups, resulting in the formation of the corresponding imine (2,3,4,5-tetrahydropyridine) as the major product and in the nitramine (1-nitropiperidine) and nitrosamine (1-nitrosopiperidine) as minor products. Analysis of 1-nitrosopiperidine photolysis experiments under natural sunlight conditions gave the relative rates jrel = j1-nitrosoperidine/jNO2 = 0.342 ± 0.007, k3/k4a = 0.53 ± 0.05 and k2/k4a = (7.66 ± 0.18) × 10-8 that were subsequently employed in modeling the piperidine photo-oxidation experiments, from which the initial branchings between H-abstraction from the NH and CH2 groups, kN-H/ktot = 0.38 ± 0.08 and kC2-H/ktot = 0.49 ± 0.19, were derived. All photo-oxidation experiments were accompanied by particle formation that was initiated by the acid-base reaction of piperidine with nitric acid. Primary photo-oxidation products including both 1-nitrosopiperidine and 1-nitropiperidine were detected in the particles formed. Quantum chemistry calculations on the OH initiated atmospheric photo-oxidation of piperidine suggest the branching in the initial H-abstraction routes to be ∼35% N1, ∼50% C2, ∼13% C3, and ∼2% C4. The theoretical study produced an atmospheric photo-oxidation mechanism, according to which H-abstraction from the C2 position predominantly leads to 2,3,4,5-tetrahydropyridine and H-abstraction from the C3 position results in ring opening followed by a complex autoxidation, of which the first few steps are mapped in detail. H-abstraction from the C4 position is shown to result mainly in the formation of piperidin-4-one and 2,3,4,5-tetrahydropyridin-4-ol, whereas H-abstraction from N1 under atmospheric conditions primarily leads to 2,3,4,5-tetrahydropyridine and in minor amounts of 1-nitrosopiperidine and 1-nitropiperidine. The calculated rate coefficient for the piperidine + OH reaction agrees with the experimental value within 35%, and aligning the theoretical numbers to the experimental value results in k(T) = 2.46 × 10-12 × exp(486 K/T) cm3 molecule-1 s-1 (200-400 K).

14.
Am J Case Rep ; 25: e943101, 2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38532541

RESUMO

BACKGROUND Pyloric obstruction after dichlorvos poisoning causes repeated vomiting and inability to eat. Choledocholithiasis and cholelithiasis are the common digestive diseases, with high morbidity and relapse in elderly patients. However, the complex situation of these diseases' coexistence is a clinically intractable problem, and literature on selecting optimal surgical planning is scarce. CASE REPORT A thin 79-year-old woman took dichlorvos due to family conflicts. She improved after being urgently sent to local hospital for gastric lavage and detoxification. Over the next 3 months, she presented with intermittent nausea, vomiting, epigastric pain, and mental apathy, and was readmitted. Gastroscopy showed extensive scarring in the antrum, pyloric obstruction, and gastric retention. Magnetic resonance cholangiopancreatography revealed gallstones and choledocholithiasis. Also, she presented with gastric retention, hypertension, moderate anemia, hypoproteinemia, and electrolyte disturbances. After hospitalization, conservative treatment was performed, without improving vomiting, followed by surgical treatment. Gastrojejunostomy, Braun anastomosis, and nasojejunal feeding tube placement were performed for pyloric stenosis; cholecystectomy for cholelithiasis; and choledochotomy, intraoperative choledochoscopy examination, basket stone extraction, and primary suture of common bile duct without indwelling T tube for choledocholithiasis. Patient recovered and was discharged 9 days after surgery. She was recovered well, without vomiting, at 2-month follow-up. CONCLUSIONS Gastrojejunostomy plus Braun anastomosis is effective treatment of elderly patients with pyloric obstruction formed after pesticide-induced corrosion. Careful selection of choledocholithotomy with primary suture without indwelling T tube reduced postoperative pain and accelerated recovery. This complex case of pyloric obstruction with gallbladder and bile duct stones provides useful considerations for clinical treatment.


Assuntos
Coledocolitíase , Estenose Pilórica , Idoso , Feminino , Humanos , Colangiopancreatografia Retrógrada Endoscópica , Coledocolitíase/cirurgia , Diclorvós , Estenose Pilórica/complicações , Estenose Pilórica/cirurgia , Vômito
16.
Environ Sci Technol ; 58(12): 5453-5460, 2024 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-38477969

RESUMO

Many types of living plants release gaseous trimethylamine (TMA), making it a potentially important contributor to new particle formation (NPF) in remote areas. However, a panoramic view of the importance of forest biogenic TMA at the regional scale is lacking. Here, we pioneered nationwide mobile measurements of TMA across a transect of contiguous farmland in eastern China and a transect of subtropical forests in southern China. In contrast to the farmland route, TMA concentrations measured during the subtropical forest route correlated significantly with isoprene, suggesting potential TMA emissions from leaves. Our high time-resolved concentrations obtained from a weak photo-oxidizing atmosphere reflected freshly emitted TMA, indicating the highest emission intensity from irrigated dryland (set as the baseline of 10), followed by paddy field (7.1), subtropical evergreen forests (5.9), and subtropical broadleaf and mixed forests (4.3). Extrapolating their proportions roughly to China, subtropical forests alone, which constitute half of the total forest area, account for nearly 70% of the TMA emissions from the nation's total farmland. Our estimates, despite the uncertainties, take the first step toward large-scale assessment of forest biogenic amines, highlighting the need for observational and modeling studies to consider this hitherto overlooked source of TMA.


Assuntos
Florestas , Metilaminas , Fazendas , China , Solo
17.
MycoKeys ; 103: 1-24, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38495949

RESUMO

Two new termite-pathogenic species, Ophiocordycepsglobiperitheciata and O.longistipes, are described from Yunnan Province, China. Six-locus (ITS, nrSSU, nrLSU, tef-1α, rpb1 and rpb2) phylogenetic analyses in combination with morphological observations were employed to characterize these two species. Phylogenetically, O.globiperitheciata is most closely related to Hirsutellacryptosclerotium and O.communis, whereas O.longistipes shares a sister relationship with O.fusiformis. However, O.globiperitheciata differs from H.cryptosclerotium by parasitizing Blattodea and producing clavate, unbifurcated stromata. Ophiocordycepsglobiperitheciata is distinguished from O.communis by multiple stromata, shorter asci and ascospores. Ophiocordycepslongistipes differs from O.fusiformis in producing larger stromata, perithecia, asci and ascospores, as well as smaller citriform or oval conidia. Morphological descriptions of the two new species and a dichotomous key to the 19 termite-pathogenic Ophiocordyceps species are presented.

18.
Sci Total Environ ; 920: 170981, 2024 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-38365034

RESUMO

Calcification accompanied by deactivation of anaerobic granular sludge (AnGS) is a continuing challenge for high calcium wastewater treatment. The interaction between Ca2+ and extracellular polymeric substances (EPS) is a precondition for this problem. In this study, magnetite for activity recovery and calcification alleviation simultaneously of AnGS under high calcium stress was investigated. The results showed that, in the presence of magnetite, the relative biogas production increased by 13.2 % with the higher activities of key enzymes involved in methanogenesis. Methanosarcina turned into the dominant methanogens, and syntrophic bacteria such as Chloroflexi, Synergistota were enriched, which indicated the enhancement of electron transfer by magnetite, supported by an 18 % increase of the electron transfer system (ETS) activity. Further characterizations of AnGS suggested that the granule calcification was alleviated with a final decrease of 13-40 % calcium content of AnGS with particle size of 1-2.5 mm. Besides, calcium was partially substituted by iron in the EPS, and the secretion of EPS especially proteins decreased. Batch tests demonstrated the competition between Fe2+ dissolved from magnetite and Ca2+, which interfered the interaction between Ca2+ and EPS, so the granule calcification was prevented. Therefore, magnetite played a pluripotent role in the alleviation of granule calcification and deactivation in situ via (1) enhancing electron transfer, and (2) blocking the complex between Ca2+ and EPS. This study provides a novel insight into the application of conductive metal materials in biological wastewater treatment systems suffering from high calcium attack.


Assuntos
Óxido Ferroso-Férrico , Esgotos , Esgotos/microbiologia , Anaerobiose , Cálcio , Elétrons , Bactérias , Reatores Biológicos , Metano
19.
Bioanalysis ; 16(7): 77-119, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38389403

RESUMO

The 17th Workshop on Recent Issues in Bioanalysis (17th WRIB) took place in Orlando, FL, USA on June 19-23, 2023. Over 1000 professionals representing pharma/biotech companies, CROs, and multiple regulatory agencies convened to actively discuss the most current topics of interest in bioanalysis. The 17th WRIB included 3 Main Workshops and 7 Specialized Workshops that together spanned 1 week to allow an exhaustive and thorough coverage of all major issues in bioanalysis of biomarkers, immunogenicity, gene therapy, cell therapy and vaccines. Moreover, in-depth workshops on "EU IVDR 2017/746 Implementation and impact for the Global Biomarker Community: How to Comply with these NEW Regulations" and on "US FDA/OSIS Remote Regulatory Assessments (RRAs)" were the special features of the 17th edition. As in previous years, WRIB continued to gather a wide diversity of international, industry opinion leaders and regulatory authority experts working on both small and large molecules as well as gene, cell therapies and vaccines to facilitate sharing and discussions focused on improving quality, increasing regulatory compliance, and achieving scientific excellence on bioanalytical issues. This 2023 White Paper encompasses recommendations emerging from the extensive discussions held during the workshop and is aimed to provide the bioanalytical community with key information and practical solutions on topics and issues addressed, in an effort to enable advances in scientific excellence, improved quality and better regulatory compliance. Due to its length, the 2023 edition of this comprehensive White Paper has been divided into three parts for editorial reasons. This publication (Part 3) covers the recommendations on Gene Therapy, Cell therapy, Vaccines and Biotherapeutics Immunogenicity. Part 1A (Mass Spectrometry Assays and Regulated Bioanalysis/BMV), P1B (Regulatory Inputs) and Part 2 (Biomarkers, IVD/CDx, LBA and Cell-Based Assays) are published in volume 16 of Bioanalysis, issues 8 and 9 (2024), respectively.


Assuntos
Bioensaio , Tecnologia , Bioensaio/métodos , Biomarcadores/análise , Terapia Baseada em Transplante de Células e Tecidos , Imunoterapia Ativa
20.
Sci Total Environ ; 923: 171318, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38423341

RESUMO

The hardness and microorganism contamination are common problems of water quality around the world. Capacitive deionization (CDI) is a much-discussed solution to help solve the water crisis by providing efficient water softening while killing microorganism. Carboxylic (Na) cation-exchange fiber (CCEF) is an adsorbent material with good affinity for hardness ions. Silver nanoparticles (AgNPs) is a broad-spectrum microbicide. In this paper, the CCEF modified activated carbon (CCEF-AC) was used as cathode and showed excellent hardness ion adsorption selectivity at the optimum CCEF doping level (αCa2+/Na of 15.0, αMg2+/Na of 13.5). Its electrosorption capacity of Ca2+ reached 311 µmol/g, much higher than that of the AC cathode (188 µmol/g). It also showed good regenerable performance, retaining over 85 % of Ca2+ electrosorption capacity after 50 cycles stability test. The activated carbon modified with AgNPs (AC-Ag) was used as anode. When enhanced by an electric field, it could kill bacteria and microalgae with over 99 % and 90 % inhibition rates, respectively. This work has opened up a new way to simultaneously remove multiple pollutants (organic or inorganic) from water.

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