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1.
Sci Rep ; 14(1): 10821, 2024 May 11.
Artículo en Inglés | MEDLINE | ID: mdl-38734707

RESUMEN

Nickel copper cobalt oxide (NiCuCoO) ternary metal oxide nanoparticles were synthesized by employing the hydrothermal method. NiCuCoO electrode demonstrates a specified capacity of 596 C g-1 at 1 A g-1, high capacitance retaining of 99% even if 1000 sequences at the density of current 10 A g-1, and significant extended cyclic strength over 1000 sequences. The gathered asymmetric supercapacitor (ASC) tool via NiCuCoO as the cathode and activated carbon as anode materials achieve a specified capacity of 168 C g-1 at a current density of 1 Ag-1, an excellent capacity retaining of 95% even later than 5000 sequences at a density of current 10 A g-1. The fabricated device exhibits a high density of energy and power is 96 Wh kg-1 and 841 W kg-1. The prepared material confirms an excellent capacitance routine, so this work represents for a next-generation energy storage device.

2.
Ann Hematol ; 102(10): 2835-2844, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37479890

RESUMEN

The outlook of relapsed ALL in low- and middle-income countries (LMICs) is dismal due to high treatment-related toxicities and inadequate resources. We report our experience of using a locally adapted mitoxantrone-based protocol for non-high risk (HR) relapsed B-ALL (rALL). A retrospective cum prospective study of standard and intermediate risk (SR and IR) rALL patients treated on TMH rALL-18 protocol (adapted from COG/UKALLR3/Int-Re-ALL protocols) between November 2018 and January 2021 was analyzed. The protocol comprising of 7 blocks of multi-agent chemotherapy including mitoxantrone in induction followed by local irradiation and maintenance, underwent serial modifications based on our experience with initial patients. Eighty-two patients (SR rALL, 3; IR rALL, 79) were treated on TMH rALL-18 protocol. Of 321 grade 3/4 reported toxicities, around 43% (138 toxicities) were noted during induction. Induction chemotherapy was outpatient-based; however, 68 patients (82.9%) required supportive care admissions. Twelve out of 19 patients with gram negative bacilli sepsis (included 7 MDRO) died during reinduction. Five remission deaths were seen during block 3 after which cytarabine was dose reduced (3 g to 2 g/m2). Post-reinduction minimal residual disease was negative in 54 (80.6%) out of 67 evaluable patients. At a median follow-up of 24 months (95% CI 22-27), the estimated 2-year event-free and overall survival of the entire cohort was 58% (95% CI 48.1-69.9) and 60.3% (95% CI 50.5-72). Until the time, targeted therapies are freely accessible in LMICs, strengthening supportive care as well as local adaptation of protocols that strike a fine balance between efficacy and tolerability are mandated.


Asunto(s)
Bacteriemia , Mitoxantrona , Humanos , Niño , Estudios Prospectivos , Estudios Retrospectivos , Hospitales , India/epidemiología
3.
Cureus ; 14(8): e27697, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36081975

RESUMEN

Condylar fractures of the mandible have been of particular interest to surgeons for decades, as there is a big debate regarding the management option: conservative versus surgical modality. Conservative treatment is the preferred treatment modality for condylar head (diacapitular) fractures. Currently, surgical modality is favored and surgeons are opting for open reduction and internal fixation for diacapitular fractures as it reestablishes the anatomical position of the fragments and disc, and permits immediate functional mobility of the jaw, thereby reducing the chances of occurrence of temporomandibular joint ankylosis. This case series enumerates the pros and cons of open reduction and internal fixation of condylar fractures of the mandible occurring at various levels using a modified retromandibular approach and highlights that this can be considered as one of the treatment options for condylar fractures.

4.
Cureus ; 14(3): e23638, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35510009

RESUMEN

Ossifying fibromas are rare, benign, nonaggressive fibro-osseous lesions that manifest in the craniofacial region. Ossifying fibromas are benign tumors of bone, commonly involving the posterior dentate mandible in middle-aged individuals with a female predilection. Clinical manifestations are an asymptomatic expansion of the dentate mandible, with infrequent maxillary lesions. Benign fibro-osseous lesions of the maxilla exhibit similar histopathological findings. Cone-beam computed tomography scan plays an important role in diagnosing and understanding the invasiveness of this lesion. This case report describes an uncommon presentation of ossifying fibroma in the posterior maxilla in an adult male patient. Treatment consisted of surgical excision, and wound healing was uneventful during the one-year postoperative follow-up period.

5.
Cureus ; 14(2): e22375, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35321068

RESUMEN

Peripheral ossifying fibroma (POF) is a localized reactive enlargement of the gingiva often associated with the papilla and originate from underneath the periodontium. POF occurs predominantly in females, especially in the anterior maxillary region of young adults. The histopathological examination provides a confirmatory diagnosis of such lesions due to their heterogeneous clinical and radiographic characteristics. This case report describes an atypical presentation of POF in the anterior mandible in an adult male patient. Treatment consisted of complete surgical excision and gingival curettage resulting in uneventful healing during the postoperative follow-up period.

6.
Int J Mol Sci ; 23(6)2022 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-35328595

RESUMEN

Conductive and porous nitrogen-rich materials have great potential as supercapacitor electrode materials. The exceptional efficiency of such compounds, however, is dependent on their larger surface area and the level of nitrogen doping. To address these issues, we synthesized a porous covalent triazine framework (An-CTFs) based on 9,10-dicyanoanthracene (An-CN) units through an ionothermal reaction in the presence of different molar ratios of molten zinc chloride (ZnCl2) at 400 and 500 °C, yielding An-CTF-10-400, An-CTF-20-400, An-CTF-10-500, and An-CTF-20-500 microporous materials. According to N2 adsorption-desorption analyses (BET), these An-CTFs produced exceptionally high specific surface areas ranging from 406-751 m2·g-1. Furthermore, An-CTF-10-500 had a capacitance of 589 F·g-1, remarkable cycle stability up to 5000 cycles, up to 95% capacity retention, and strong CO2 adsorption capacity up to 5.65 mmol·g-1 at 273 K. As a result, our An-CTFs are a good alternative for both electrochemical energy storage and CO2 uptake.


Asunto(s)
Estructuras Metalorgánicas , Triazinas , Adsorción , Antracenos , Dióxido de Carbono/química , Nitrógeno/química , Triazinas/química
7.
Sci Immunol ; 5(45)2020 03 06.
Artículo en Inglés | MEDLINE | ID: mdl-32139586

RESUMEN

B cells in human food allergy have been studied predominantly in the blood. Little is known about IgE+ B cells or plasma cells in tissues exposed to dietary antigens. We characterized IgE+ clones in blood, stomach, duodenum, and esophagus of 19 peanut-allergic patients, using high-throughput DNA sequencing. IgE+ cells in allergic patients are enriched in stomach and duodenum, and have a plasma cell phenotype. Clonally related IgE+ and non-IgE-expressing cell frequencies in tissues suggest local isotype switching, including transitions between IgA and IgE isotypes. Highly similar antibody sequences specific for peanut allergen Ara h 2 are shared between patients, indicating that common immunoglobulin genetic rearrangements may contribute to pathogenesis. These data define the gastrointestinal tract as a reservoir of IgE+ B lineage cells in food allergy.


Asunto(s)
Albuminas 2S de Plantas/inmunología , Antígenos de Plantas/inmunología , Linfocitos B/inmunología , Tracto Gastrointestinal/inmunología , Inmunoglobulina E/inmunología , Hipersensibilidad al Cacahuete/inmunología , Adulto , Femenino , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Ácidos Nucleicos Inmovilizados/análisis , Ácidos Nucleicos Inmovilizados/inmunología , Masculino , Persona de Mediana Edad
8.
Cell Rep ; 29(7): 1832-1847.e8, 2019 11 12.
Artículo en Inglés | MEDLINE | ID: mdl-31722201

RESUMEN

Iterative liver injury results in progressive fibrosis disrupting hepatic architecture, regeneration potential, and liver function. Hepatic stellate cells (HSCs) are a major source of pathological matrix during fibrosis and are thought to be a functionally homogeneous population. Here, we use single-cell RNA sequencing to deconvolve the hepatic mesenchyme in healthy and fibrotic mouse liver, revealing spatial zonation of HSCs across the hepatic lobule. Furthermore, we show that HSCs partition into topographically diametric lobule regions, designated portal vein-associated HSCs (PaHSCs) and central vein-associated HSCs (CaHSCs). Importantly we uncover functional zonation, identifying CaHSCs as the dominant pathogenic collagen-producing cells in a mouse model of centrilobular fibrosis. Finally, we identify LPAR1 as a therapeutic target on collagen-producing CaHSCs, demonstrating that blockade of LPAR1 inhibits liver fibrosis in a rodent NASH model. Taken together, our work illustrates the power of single-cell transcriptomics to resolve the key collagen-producing cells driving liver fibrosis with high precision.


Asunto(s)
Células Estrelladas Hepáticas/metabolismo , Cirrosis Hepática/metabolismo , Análisis de la Célula Individual , Transcriptoma , Animales , Modelos Animales de Enfermedad , Células Estrelladas Hepáticas/patología , Humanos , Cirrosis Hepática/genética , Cirrosis Hepática/patología , Ratones , Ratones Transgénicos , Ratas , Ratas Wistar , Receptores del Ácido Lisofosfatídico/genética , Receptores del Ácido Lisofosfatídico/metabolismo
9.
Microb Pathog ; 115: 146-153, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29278781

RESUMEN

Actinobacteria is the most widely distributed organism in the mangrove environment and produce a large amount of secondary metabolites. A new environmental actinobacterial stain exhibited strong antimicrobial activity against vancomycin and methicillin resistant actinobacteria. The active producer strain was found to be as Brevibacillus brevis EGS9, which was confirmed by its morphological, biochemical characteristics and 16S rRNA gene sequencing. It was deposited in NCBI GeneBank database and received with an accession number of KX388147. Brevibacillus brevis EGS9 was cultivated by submerged fermentation to produce antimicrobial compounds. The anti-proliferative agent was extracted from Brevibacillus brevis EGS9 with ethyl acetate. The bioactive metabolites of mangrove actinobacteria was identified by Liquid chromatography with mass spectrometry analysis. The result of the present investigation revealed that actinobacteria isolated from mangroves are potent source of anticancer activity. The strain of Brevibacillus brevis EGS9 exhibited a potential in vitro anticancer activity. The present research concluded that the actinobacteria isolated from mangrove soil sediment are valuable in discovery of novel species.


Asunto(s)
Actinobacteria/crecimiento & desarrollo , Antibacterianos/farmacología , Antibiosis/fisiología , Antineoplásicos/farmacología , Brevibacillus/metabolismo , Proliferación Celular/efectos de los fármacos , Acetatos/química , Actinobacteria/efectos de los fármacos , Brevibacillus/aislamiento & purificación , Línea Celular Tumoral , Farmacorresistencia Bacteriana Múltiple , Células HeLa , Células Hep G2 , Humanos , Meticilina/farmacología , Pruebas de Sensibilidad Microbiana , Microbiología del Suelo , Vancomicina/farmacología
10.
J Contemp Dent Pract ; 17(4): 322-6, 2016 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-27340167

RESUMEN

OBJECTIVE: The objective of this study was to evaluate and compare changes in the flexural strength of heat-cured denture base resins when treated using denture cleansers. STUDY DESIGN: A total of 40 specimens with dimension 65 mm length, 10 mm width, and 3 mm thickness were prepared as per ISO 1567 specification. A total of 10 specimens were immersed in distilled water to be used as control. Of the remaining 30 samples, 10 were treated with Clinsodent, 10 with VI-Clean, and 10 with Clanden denture cleansers. Specimens in each group were subjected to three-point flexural load in universal testing machine at a cross-head speed of 5 mm/min. The peak load (N) was recorded and flexural strength was calculated. The findings were analyzed using Kruskal-Wallis analysis of variance and Mann-Whitney test. RESULTS: Heat-cured denture base resin selected for this study showed significant difference in flexural strength after immersion in denture cleansers Clinsodent, VI-Clean, and Clanden solutions, when compared with the control group. CONCLUSION: Findings of this study showed that denture cleansers altered the flexural strength of heat polymerized acrylic resins that endured soaking cycles which simulated 180 days of use. Hence, denture cleansers should be used with caution, once a day after brushing the dentures. It is advisable for patients to follow the manufacturer's instructions.


Asunto(s)
Resinas Acrílicas , Limpiadores de Dentadura/farmacología , Calor , Inmersión , Polimerizacion , Estadística como Asunto
11.
Pharm Biol ; 53(12): 1774-9, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25853978

RESUMEN

CONTEXT: In its powdered form, turmeric [Curcuma longa L. (Zingiberaceae)], a spice of medical importance, is often adulterated lowering its quality. OBJECTIVE: The study sought to detect plant-based adulterants in traded turmeric powder using DNA barcoding. MATERIALS AND METHODS: Accessions of Curcuma longa L., Curcuma zedoaria Rosc. (Zingiberaceae), and cassava starch served as reference samples. Three barcoding loci, namely ITS, rbcL, and matK, were used for PCR amplification of the reference samples and commercial samples representing 10 different companies. PCR success rate, sequencing efficiency, occurrence of SNPs, and BLAST analysis were used to assess the potential of the barcoding loci in authenticating the traded samples of turmeric. RESULTS: The PCR and sequencing success of the loci rbcL and ITS were found to be 100%, whereas matK showed no amplification. ITS proved to be the ideal locus because it showed greater variability than rbcL in discriminating the Curcuma species. The presence of C. zedoaria could be detected in one of the samples whereas cassava starch, wheat, barley, and rye in other two samples although the label claimed nothing other than turmeric powder in the samples. DISCUSSION AND CONCLUSION: Unlabeled materials in turmeric powder are considered as adulterants or fillers, added to increase the bulk weight and starch content of the commodity for economic gains. These adulterants pose potential health hazards to consumers who are allergic to these plants, lowering the product's medicinal value and belying the claim that the product is gluten free. The study proved DNA barcoding as an efficient tool for testing the integrity and the authenticity of commercial products of turmeric.


Asunto(s)
Curcuma/genética , Código de Barras del ADN Taxonómico/métodos , Contaminación de Alimentos/análisis , Extractos Vegetales/análisis , Extractos Vegetales/genética , Polvos , Rizoma
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