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1.
Artigo em Inglês | MEDLINE | ID: mdl-39007644

RESUMO

In this work, graphene oxide (GO)/polymer hybrid microcapsule-loaded self-healing agents were prepared via the combination of the emulsion template method and photopolymerization technology. The incorporation of GO in the microcapsule shell not only improved the impermeability, mechanical property, and solvent resistance property of the microcapsules significantly but also endowed the microcapsules with photothermal conversion property. By incorporating GO/polymer hybrid microcapsules in water-borne epoxy resin, a novel kind of anticorrosion coating with a double self-healing property was successfully fabricated. When the coating was scratched, the linseed oil (LO) encapsulated in the microcapsules could fill the crack, and the photothermal conversion property of GO could promote the molecular chain movement of the damaged area under near-infrared (NIR) irradiation to realize the close of the crack. Based on the filling of LO and photothermal conversion-induced scratch narrowing, the "filling" and "close" double self-healing effect can be realized under temporal NIR irradiation, which could lead to the complete recovery of the scratched coating. The |Z|f=0.1Hz value of the damaged coating with GO/polymer microcapsules after double healing was comparable to that of the intact coating, which was about 4 orders of magnitude higher than that of the scratched blank coating and single self-healing coating. As to the neutral salt spray test, the scratched blank coating failed in protection after 100 h, while the healed composite coating did not show any corrosion after 300 h.

2.
Food Funct ; 15(12): 6731-6742, 2024 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-38836315

RESUMO

The common belief that heat treatment enhances the gastric digestion of proteins is largely based on findings from animal proteins and may not apply to all proteins, particularly plant proteins. Here, we compared the digestion characteristics of soybean protein isolates (SPI) in an in vitro semi-dynamic digestion model and found distinct effects of heat treatment on the digestion properties of plant proteins. The results revealed that heat-treated SPIs formed clots during the early stages of digestion, although the clots gradually became smaller and looser as digestion progressed, the systems remained turbid at the end of gastric digestion, indicating the lag in their emptying. Furthermore, heat treatment altered the rheological properties of SPI, resulting in increased viscosity and slower gastric emptying. These effects became more pronounced with increasing heat treatment temperatures. The fluorescence spectrum analysis indicated that heat treatment altered its conformation. This led to protein unfolding and exposure of hydrophobic groups, facilitating the formation of larger aggregates during digestion. Additionally, heat treatment exposed more cleavage sites for gastric proteases, increasing the extent of hydrolysis. Elevated levels of free amino acids and a smaller molecular weight distribution further corroborated these findings. These findings contribute to a deeper understanding of the gastric digestion characteristics of plant proteins and the relationship between protein aggregation structure and the digestion process.


Assuntos
Digestão , Temperatura Alta , Agregados Proteicos , Proteínas de Soja , Proteínas de Soja/química , Proteínas de Soja/metabolismo , Glycine max/química , Glycine max/metabolismo , Humanos , Viscosidade , Mucosa Gástrica/metabolismo , Modelos Biológicos , Reologia , Esvaziamento Gástrico
3.
Food Res Int ; 190: 114631, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38945582

RESUMO

Plant-based meat analogs have increasingly attracted the attention of the food industry in recent years. However, the digestion behavior of this innovative solid food in human stomach is poorly understood. In this study, plant-based meat analogs with different internal structures were prepared with/without high-moisture extrusion technology and at different temperatures. A semi-dynamic gastric digestion system which involves the mimic processes of the secretion of gastric juice and the gastric emptying was applied. After extrusion treatment at high temperature (150 ℃), the EHT had the highest anisotropic index (H⊥/H∥=1.90) and an ideal meat-like structure. It was found that particle disintegration and swelling simultaneously occurred in the bolus of the EHT but not in the sample without extrusion treatment (the HLT) in the early stage of gastric digestion. This difference might be attributed to the compact and well-arranged anisotropic structure of the EHT resulting from the extrusion, and leads to difficult enzymatic hydrolyzation unless the particles swell and unfold the polymer chains. The difficulty in particle disintegration in the EHT during gastric digestion is the consequence of the relatively slow gastric emptying rate and the decrease of protein degradation. As a result, the EHT which underwent extrusion treatment at high temperature and possessed the best anisotropic fibrous structure exhibited the slowest gastric digestion. This novel solid food shows good potential as a desired nutritional food for people on diet.


Assuntos
Digestão , Esvaziamento Gástrico , Digestão/fisiologia , Humanos , Anisotropia , Estômago/fisiologia , Manipulação de Alimentos/métodos , Temperatura , Modelos Biológicos , Substitutos da Carne
4.
J Med Virol ; 96(3): e29426, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38420851

RESUMO

With the rising need for accessible cervical cancer screening, self-sampling methods offer a promising alternative to traditional physician-led sampling. This study aims to evaluate the efficacy of the HygeiaTouch Self Sampling Kit for Women in detecting human papillomavirus (HPV) types and predicting cervical lesions. We studied the concordance in identifying high-risk HPV (hrHPV) types between samples collected by physicians and those self-collected by women using a self-sampling kit for validation. Women aged 21-65, fitting into specific categories based on their cervical health history were eligible. Cohen's kappa coefficient to gauge concordance between the two specimen types and relative accuracy metrics in identifying cervical intraepithelial neoplasia (CIN) were also calculated, with physician-sampled specimens serving as a reference. A total of 1210 participants from three institutes were involved. The self-sampling kit closely matched the physician-led method in terms of collecting valid specimens (100% vs. 100%), identifying hrHPV types (kappa: 0.75, 95% confidence interval [95% CI]: 0.72-0.79; agreement: 87.7%, 95% CI: 85.8-89.6) and predicting CIN grade 2 or worse (CIN2+) (relative sensitivity: 0.949, relative accuracy: 0.959). Kappa values varied between 0.71 and 0.83 for different hrHPV types and combinations, with an overall value 0.75 (95% CI: 0.72-0.79) signifying robust compatibility between the two methods. Our study underscores the potential of the HygeiaTouch Self Sampling Kit as a reliable, efficient, and user-friendly alternative to traditional sampling methods. This suggests that self-sampling could be pivotal in expanding cervical cancer screening accessibility and enhancing detection rates.


Assuntos
Infecções por Papillomavirus , Médicos , Displasia do Colo do Útero , Neoplasias do Colo do Útero , Feminino , Humanos , Neoplasias do Colo do Útero/diagnóstico , Papillomavirus Humano , Detecção Precoce de Câncer/métodos , Papillomaviridae/genética , Manejo de Espécimes/métodos , Esfregaço Vaginal/métodos , Sensibilidade e Especificidade
5.
Endocr Relat Cancer ; 30(11)2023 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-37655726

RESUMO

Steroid cell tumors, not otherwise specified (SCT-NOS), are uncommon ovarian neoplasms accompanied by virilization symptoms due to hyperandrogenism, which are malignant in approximately one-third of the cases. Given the rarity of SCT-NOS, their molecular underpinnings have not yet been studied in depth. In this case series, we performed the first comprehensive analysis of the genetic landscape of this rare ovarian tumor. A detailed clinicopathological description of an index case is also provided. Over a 20-year period, a total of eight patients were seen at our institution. Total nucleic acids (RNA and DNA) were extracted from evaluable formalin-fixed, paraffin-embedded tumor specimens (n = 7) and subjected to TruSight Oncology 500 testing and/or exome sequencing. The results identified pathogenic variants in several hypoxia-related genes - including HIF1A, VHL, SDHB, SRC, IDH2, and FOXO4. As the first comprehensive genetic analysis of SCT-NOS, this study shows that dysregulation in the hypoxia signaling pathway is a key molecular feature of this rare tumor. Clinically, long-term follow-up with periodic measurements of androgen levels should be pursued in all cases since recurrences may occur several years after the initial diagnosis.


Assuntos
Neoplasias Ovarianas , Tumores do Estroma Gonadal e dos Cordões Sexuais , Feminino , Humanos , Neoplasias Ovarianas/metabolismo , Tumores do Estroma Gonadal e dos Cordões Sexuais/genética , Tumores do Estroma Gonadal e dos Cordões Sexuais/complicações , Tumores do Estroma Gonadal e dos Cordões Sexuais/diagnóstico , Virilismo/complicações , Virilismo/diagnóstico , Hipóxia/complicações , Esteroides
6.
Taiwan J Obstet Gynecol ; 62(4): 553-558, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37407193

RESUMO

OBJECTIVE: To evaluate the regression rate of endometrial polyps (EPs) in a cohort of asymmetric women after conservative follow-up. MATERIALS AND METHODS: In this retrospective cohort study, a total of 1006 women with asymptomatic EPs were treated with expectant management or hormonal drugs between June 1999 and May 2018. Four hundred forty-eight women (44.5%) were administered with hormonal medications and 558 women were managed expectantly (55.5%). Office hysteroscopy was performed to confirm the diagnosis and regression of EPs. Hormonal administration included oral contraceptives, progestin and cyclic estrogen/progestin regimen according to physicians' preferences. Clinical characteristics, including the patient's age, body mass index, parity, and type of conservative management were collected. RESULTS: The mean observation time was 14.1 ± 18.5 months (range, 1-162 months). The overall regression rate of EPs in this cohort was 33.5%, 24.6% occurred after medication and 8.9% after expectant management. Patient age (<50 years) (p < 0.001), follow-up period (p = 0.005) and hormonal drugs used (p < 0.001) were significantly associated with EP regression. Twenty-four (7.1%) of the 337 EP regression patients later developed recurrent disease. Follow-up period (p < 0.001) and hormonal drugs used (p = 0.032) were closely related to polyp recurrence after initial regression. Nevertheless, multivariate logistic regression analysis revealed that hormonal drugs used was significantly associated with the regression (p < 0.001) and recurrence (p = 0.016) of EPs. CONCLUSION: Women aged 50 or less are more suitable for conservative treatment for EPs. Hormonal drugs used could increase the incidence of EP regression.


Assuntos
Neoplasias do Endométrio , Pólipos , Neoplasias Uterinas , Gravidez , Humanos , Feminino , Tratamento Conservador , Progestinas/uso terapêutico , Estudos Retrospectivos , Neoplasias Uterinas/complicações , Histeroscopia , Pólipos/terapia , Pólipos/diagnóstico , Neoplasias do Endométrio/diagnóstico
7.
Autophagy ; 19(12): 3151-3168, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37505094

RESUMO

ABBREVIATIONS: AMPK: AMP-activated protein kinase; CHX: cycloheximide; RAD001: everolimus; HBSS: Hanks' balanced salt solution; LC-MS/MS: liquid chromatography-mass spectrometry/mass spectrometry; MMP14: matrix metallopeptidase 14; MTOR: mechanistic target of rapamycin kinase; MAPK: mitogen-activated protein kinase; RB1CC1/FIP200: RB1 inducible coiled-coil 1; PtdIns3P: phosphatidylinositol-3-phosphate; PX: phox homology; SH3: Src homology 3; SH3PXD2A/TKS5: SH3 and PX domains 2A; SH3PXD2A-[6A]: S112A S142A S146A S147A S175A S348A mutant; ULK1: unc-51 like autophagy activating kinase 1.


Assuntos
Autofagia , Neoplasias Ovarianas , Humanos , Feminino , Cromatografia Líquida , Metaloproteinase 14 da Matriz , Espectrometria de Massas em Tandem , Proteínas Quinases Ativadas por AMP/metabolismo , Movimento Celular , Serina-Treonina Quinases TOR/metabolismo , Proteínas Adaptadoras de Transporte Vesicular , Proteína Homóloga à Proteína-1 Relacionada à Autofagia/metabolismo , Peptídeos e Proteínas de Sinalização Intracelular
8.
Langmuir ; 39(21): 7371-7379, 2023 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-37191663

RESUMO

In this work, a series of polymer microcapsules based on UV-curable prepolymers are prepared by combining an emulsion template and photopolymerization. The modulation of the shell structure is achieved by employing UV-curable prepolymers with different chemical structures (polyurethane acrylates, polyester acrylates, and epoxy acrylates) and functionalities (di-, tetra-, and hex-). The relationships between the shell structure and the microcapsule properties are investigated in detail. The results show that the properties of the microcapsules can be effectively regulated by adjusting the composition and cross-linking density of the shell. Epoxy acrylate-based microcapsules exhibit higher impermeability, solvent resistance, and barrier and mechanical properties than polyurethane acrylate and polyester acrylate-based microcapsules. Using UV-curable prepolymer with high functionality as a shell-forming material could effectively improve the impermeability, solvent resistance, and barrier and mechanical properties of microcapsules. In addition, the dispersion of microcapsules in the coating matrix tends to follow the "similar component, better compatibility" principle, i.e., a uniform dispersion of the microcapsule in the coating matrix is more easily achieved when the compositions of the microcapsule shell and coating are similar in structure. The convenient adjustment of the shell structure and the investigation of the "structure-property" relationship provide guidance for the further controlled design of microcapsules.

9.
BMC Genom Data ; 24(1): 17, 2023 03 13.
Artigo em Inglês | MEDLINE | ID: mdl-36915036

RESUMO

OBJECTIVES: Diospyros oleifera, one of the most economically important Diospyros species, is an ideal model for studying the fruit development of persimmon. While, the lack of whole-transcriptome has hindered the complex transcriptional regulation mechanisms of sugar and tannin during fruit development. DATA DESCRIPTION: We applied Oxford Nanopore Technologies to six developmental stage of fruit from D. oleifera for use in transcriptome sequencing. As a result of full-length transcriptome sequencing, 55.87 Gb of clean data were generated. After mapping onto the reference genome of D. oleifera, 51,588 full-length collapsing transcripts, including 2,727 new gene loci and 43,223 transcripts, were obtained. Comprehensively annotated, 38,086 of new transcripts were functional annotation, and 972 lncRNAs, 7,159 AS events were predicted. Here, we released the transcriptome database of D. oleifera at different stage of fruit development,which will provide a fundamention of to investigatethe transcript structure, variants and evolution of persimmon.


Assuntos
Diospyros , Sequenciamento por Nanoporos , Diospyros/genética , Frutas/genética , Perfilação da Expressão Gênica , Genoma
10.
Physiol Rep ; 11(4): e15604, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36823776

RESUMO

It is well known that the main forms of innervation are synapses and free nerve endings, while other forms of innervation have not been reported. Here, we explore a new way of innervating lymphoid organs. Male Sprague-Dawley rats were used for studying the innervation of sympathetic nerve fibers in lymph nodes by means of anterograde tracking, immunoelectron microscopy, three-dimension reconstruction analysis, and immunofluorescence labeling. The results showed that the Fluoro-Ruby labeled nerve endings targeted only a group of cells in the lymph nodes and entered the cells through the plasma membrane. The electron microscopy showed that the biotinylated glucan amine reaction elements were distributed in the cytoplasm, and most of the biotinylated glucan amine active elements were concentrated on the microtubule and microfilament walls. Birbeck particles with rod-shaped and/or tennis racket like structures can be seen in the labeled cells at high magnification, and Birbeck particles contain biotinylated glucan amine-reactive elements. The immunofluoresence results showed that the Fluoro-Ruby-labeled nerve innervating cells expressed CD207 and CD1a protein. This result confirmed that the labeled cells were Langerhans cells. Our findings suggested that Langerhans cells might serve as a "bridge cell" for neuroimmune cross-talking in lymph organs, which play an important role in transmitting signals of the nervous system to immune system. This study also opened up a new way for further study of immune regulation mechanism.


Assuntos
Linfonodos , Sistema Linfático , Animais , Masculino , Ratos , Glucanos/metabolismo , Linfonodos/inervação , Sistema Linfático/inervação , Fibras Nervosas/metabolismo , Ratos Sprague-Dawley
11.
Soft Matter ; 19(7): 1407-1417, 2023 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-36723259

RESUMO

In this study, a facile one-pot strategy was developed to prepare porous polymeric microspheres via photopolymerization, where organic solvents functioned as porogens. In this strategy, an oil phase containing organic solvents and photopolymerizable materials was stabilized in water to form a stable oil-in-water emulsion. Upon UV irradiation, the photopolymerizable materials (photosensitive monomers/photosensitive prepolymers) underwent polymerization to form microspheres and the subsequent removal of organic solvents left pores in microspheres, leading to the generation of porous polymeric microspheres with high yielding. The effects of organic solvents and the chemical structure and concentration of photopolymerizable materials on the microsphere structure were systematically explored. It was found that the polarity of the organic solvents played a decisive role in the preparation of porous microspheres. In addition, the increases in the solvent content and functionalities of photopolymerizable materials were more favorable for the generation of porous microspheres. This strategy could be applicable for a wide selection of photopolymerizable materials, which endowed this strategy with good applicability. The preparation of porous microspheres by this method was facile and easy to handle, enabling the scalable preparation of porous microspheres. In addition, the whole process can be completed within a few minutes at ambient temperature, which was time-saving and energy-saving.

12.
Front Cell Infect Microbiol ; 12: 1031967, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36439209

RESUMO

The pathogenic influences of uterine bacteria on endometrial carcinogenesis remain unclear. The aim of this pilot study was to compare the microbiota composition of endometrial lavage samples obtained from women with either endometrial hyperplasia (EH) or endometrial cancer (EC) versus those with benign uterine conditions. We hypothesized that specific microbiota signatures would distinguish between the two groups, possibly leading to the identification of bacterial species associated with endometrial tumorigenesis. A total of 35 endometrial lavage specimens (EH, n = 18; EC, n = 7; metastatic EC, n = 2; benign endometrial lesions, n = 8) were collected from 32 women who had undergone office hysteroscopy. Microbiota composition was determined by sequencing the V3-V4 region of 16S rRNA genes and results were validated by real-time qPCR in 46 patients with EC/EH and 13 control women. Surprisingly, we found that Bacillus pseudofirmus and Stenotrophomonas rhizophila - two plastic-degrading bacterial species - were over-represented in endometrial lavage specimens collected from patients with EC/EH. Using computational analysis, we found that the functional profile of endometrial microbiota in EC/EH was associated with fatty acid and amino acid metabolism. In summary, our hypothesis-generating data indicate that the plastic-degrading bacteria Bacillus pseudofirmus and Stenotrophomonas rhizophila are over-represented within the endometrial lavage microbiota of women with EC/EH living in Taiwan. Whether this may be related to plastic pollution deserves further investigation.


Assuntos
Hiperplasia Endometrial , Neoplasias do Endométrio , Microbiota , Humanos , Feminino , Hiperplasia Endometrial/patologia , RNA Ribossômico 16S/genética , Plásticos , Irrigação Terapêutica , Projetos Piloto , Neoplasias do Endométrio/patologia , Bactérias/genética
13.
J Mol Med (Berl) ; 100(9): 1331-1339, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35953603

RESUMO

We aimed to detect endometrial cancer (EC)-associated mutations in endometrial lavage specimens collected in an office setting and to compare the detected mutations with those identified in tissue samples. Participants included 16 women attending for an office hysteroscopy because of suspected EC between July 2020 and October 2021. Massively parallel sequencing was conducted using the targeted 72 cancer-associated genes. Endometrial lavage specimens, endometrial tissue samples, and blood samples were simultaneously sequenced to establish the concordance of genetic alterations. In this study, the vast majority of EC-associated mutations identified in lavage samples (R2 = 0.948) were identical to those detected in endometrial tissues. Of the 13 patients with EC, 12 (92.3%) had at least one mutation identified in endometrial lavage samples. Notably, no mutations in lavage samples were identified in the two patients with a previous history of EC but no actual endometrial lesions, supporting a high negative predictive value of the test. A patient previously diagnosed with EC and with current evidence of atypical hyperplasia showed persisting PTEN, PIK3R1, and KRAS mutations in her endometrial lavage specimen. PTEN was the most commonly mutated gene, followed by PIK3R1, ARID1A, PIK3CA, CTNNB1, and KRAS. In conclusions, our study provides pilot evidence on the actionability of uterine lavage samples sequencing to detect EC-associated mutations in women with suspected endometrial lesions. In a precision medicine framework, the high mutational concordance between uterine lavage samples and tissue specimens may help inform less invasive diagnostic protocols and the need for ongoing surveillance in patients with EC who wished for fertility-preserving treatment. KEY MESSAGES: • Sequencing of uterine lavage samples collected by office hysteroscopy is feasible. • Most EC mutations identified in lavage were identical to endometrial tissues. • Sequencing of uterine lavage samples may help inform diagnostic protocols for EC. • This approach can be used for recurrence surveillance in patients with EC.


Assuntos
Neoplasias do Endométrio , Histeroscopia , Neoplasias do Endométrio/diagnóstico , Neoplasias do Endométrio/genética , Feminino , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Histeroscopia/métodos , Patologia Molecular , Proteínas Proto-Oncogênicas p21(ras)/genética , Irrigação Terapêutica
14.
Heliyon ; 8(7): e09870, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35847622

RESUMO

Plant mitochondrial genomes are a valuable source of genetic information for a better understanding of phylogenetic relationships. However, no mitochondrial genome of any species in Ebenaceae has been reported. In this study, we reported the first mitochondrial genome of an Ebenaceae model plant Diospyros oleifera. The mitogenome was 493,958 bp in length, contained 39 protein-coding genes, 27 transfer RNA genes, and 3 ribosomal RNA genes. The rps2 and rps11 genes were missing in the D. oleifera mt genome, while the rps10 gene was identified. The length of the repetitive sequence in the D. oleifera mt genome was 31 kb, accounting for 6.33%. A clear bias in RNA-editing sites were found in the D. oleifera mt genome. We also detected 28 chloroplast-derived fragments significantly associated with D. oleifera mt genes, indicating intracellular tRNA genes transferred frequently from chloroplasts to mitochondria in D. oleifera. Phylogenetic analysis based on the mt genomes of D. oleifera and 27 other taxa reflected the exact evolutionary and taxonomic status of D. oleifera. Ka/Ks analysis revealed that 95.16% of the protein-coding genes in the D. oleifera mt genome had undergone negative selections. But, the rearrangement of mitochondrial genes has been widely occur among D. oleifera and these observed species. These results will lay the foundation for identifying further evolutionary relationships within Ebenaceae.

16.
Front Med (Lausanne) ; 9: 1090788, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36619620

RESUMO

Background: Endometrial hyperplasia (EH), particularly with atypia, is considered an antecedent of endometrial adenocarcinoma. In this study, we aimed to apply massively parallel sequencing of endometrial lavage specimens for the detection of cancer-associated mutations in atypical (AEH) and non-atypical endometrial hyperplasia (NEH). The identified alterations were compared with those detected in tissue samples. Materials and methods: Endometrial lavage specimens and parallel biopsy samples (n = 11 for AEH and n = 9 for NEH) were obtained from 18 women (9 with AEH and 9 with NEH) who received an office hysteroscopy for suspected endometrial lesions. All samples were tested for somatic mutations in hotspot regions of 72 cancer-associated genes by massively parallel sequencing. Results: On analyzing sequencing data, the presence of at least one cancer-associated gene mutation was identified in 72.7 and 44.4% of endometrial lavage specimens obtained from women with AEH and NEH, respectively (p = 0.362, 95% confidence interval = 0.72-3.70). The concordance rates between mutations identified in endometrial lavage specimens and endometrial biopsies were 54.5 and 0% from women with AEH and NEH, respectively (p = 0.014). A patient with NEH harbored mutations in endometrial lavage with the same mutations found in the tissue specimen at low allele frequency below detection cutoff, raising the suspicion of missed focal atypia. Conclusion: Endometrial hyperplasia is characterized by a high burden of cancer-associated mutations, particularly in the presence of atypia. Our study, albeit performed with a relatively small number of samples, indicates that their detection by massively parallel sequencing of endometrial lavage is feasible. Our findings may allow tailoring of endometrial biopsies to the individual risk of AEH; additionally, they can pave the way toward less invasive surveillance protocols in patients with known EH.

17.
Mitochondrial DNA B Resour ; 6(10): 2951-2952, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34553054

RESUMO

Diospyros kaki cv. Luotiantianshi is a rare germplasm of Diospyros Linn in the world. In this study, we generated the complete chloroplast (cp) genome of D. kaki cv. Luotiantianshi. The complete cp genome was 157,773 bp in length, containing a large single copy region (LSC) of 87,066 bp, a small single copy region (SSC) of 18,529 bp, and two inverted repeat (IR) regions of 26,089 bp. The new sequence has a total of 131 genes, including 86 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. Further, phylogenetic analysis showed that the D. kaki cv. Luotiantianshi has a close relationship with Diospyros kaki. This study provides important information for future evolution, genetic and molecular biology studies of Diospyros.

18.
Abdom Radiol (NY) ; 46(11): 5307-5315, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34241647

RESUMO

PURPOSE: Uterine fibroids are benign gynecologic tumors and commonly occur in women by the age of 50. Women with symptomatic uterine fibroids generally receive surgical intervention, while they do not favor the invasive therapies. To evaluate the feasibility and safety of a novel magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU) modality, ArcBlate, in the treatment of uterine fibroids. METHODS: Nine patients with uterine fibroids and one patient with adenomyosis were treated with ArcBlate MRgHIFU. Tumor size and quality of life were evaluated postoperatively at 1 and 3 months by magnetic resonance imaging (MRI) and the 36-Item Short Form Survey (SF-36), respectively. RESULTS: All patients completed the ArcBlate MRgHIFU procedure and there were no treatment-related adverse effects either during the procedure or during the 3 months of follow-up. Despite limiting the ablation volume to under 50% of the treated fibroid volume as a safety precaution, tumor volumes were markedly reduced in four patients by 15.78-58.87% at 3-month post-treatment. Moreover, SF-36 scale scores had improved at 3 months from baseline by 2-8 points in six patients, indicating relief of symptoms and improved quality of life. CONCLUSION: This study evidence demonstrates the safety and feasibility of ArcBlate MRgHIFU and suggests its potential for treating uterine fibroids.


Assuntos
Leiomioma , Neoplasias Uterinas , Estudos de Viabilidade , Feminino , Humanos , Leiomioma/diagnóstico por imagem , Leiomioma/cirurgia , Imageamento por Ressonância Magnética , Qualidade de Vida , Resultado do Tratamento , Neoplasias Uterinas/diagnóstico por imagem , Neoplasias Uterinas/cirurgia
19.
J Colloid Interface Sci ; 600: 660-669, 2021 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-34049021

RESUMO

This work presented a new concept for designing dual-chamber self-healing microcapsules, which encapsulated both healing and curing species within a single microcapsule via Pickering emulsion photopolymerization. In our strategy, robust SiO2 spheres encapsulating curing agent were firstly synthesized and used as Pickering emulsifiers to prepare emulsions loaded with self-healing agent and photo-curable monomer. Upon exposure to UV light, the photo-curable monomer underwent photo-crosslinking and converted into microcapsules wall. In the meanwhile, the SiO2 spheres encapsulating curing agent were trapped in the microcapsule wall. The dual-chamber microcapsule which loaded the healing agent in its core and curing agent within its shell, was thus prepared. The presence of both the encapsulated healing and curing agent within a single capsule was demonstrated by infrared spectrometry and thermogravimetric analysis. Upon fracture, the healing agent and curing agent are released simultaneously from the dual-chamber microcapsule, which facilitates the interaction of the two agents, and enhances the healing efficiency. Up to 85% healing efficiency of the epoxy resin was achieved in 1 h, which was much higher than that of the traditional double microcapsules self-healing system (65%), demonstrating the excellent self-healing performance of the dual-chamber microcapsules. It has been demonstrated that the coating based on dual-chamber microcapsule presented reliable and outstanding self-healing anti-corrosion efficiency. By changing the species of healing agent, curing agent and wall substances (photo-curable monomer), the as-prepared dual-chamber microcapsules can meet different requirements of versatile self-healing system.


Assuntos
Cápsulas , Emulsões
20.
BMC Surg ; 21(1): 49, 2021 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-33478468

RESUMO

BACKGROUND: To evaluate the use of a human fibrin glue (Tisseel) for minor bleeding control and approximation of ovarian defect during transvaginal natural orifice ovarian cystectomy (TNOOC) of benign and non-endometriotic ovarian tumors. METHODS: A total of 125 women with benign and non-endometriotic ovarian tumors who underwent TNOOC between May 2011 and January 2020: 54 with the aid of Tisseel and 71 with traditional suture for hemostasis and approximation of ovarian defect. Surgical outcomes such as length of surgery, operative blood loss, postoperative pain score, and postoperative hospital stay were recorded. Before and immediately (10 days) and at 6 months after the procedure, serum anti-Müllerian hormone (AMH) levels were also determined. RESULTS: Complete hemostasis and approximation of ovarian defect were achieved in all cases. No significant difference was noted in the operating time, operative blood loss, postoperative pain scores after 12, 24 and 48 h, length of postoperative stay, and baseline AMH levels between the two groups. The operation did not have a negative effect on the immediate and 6-month postoperative AMH levels in the suture group. However, the decline in the AMH levels was significant immediately after surgery in the Tisseel group, nevertheless, no significant difference was noted in the AMH levels at 6 months (3.3 vs. 1.7 mg/mL; p = 0.042, adjusted p = 0.210). CONCLUSION: The use of Tisseel in TNOOC of benign and non-endometriotic ovarian tumors without suturing the ovarian tissue is clinically safe and feasible.


Assuntos
Adesivo Tecidual de Fibrina , Laparoscopia , Neoplasias Ovarianas , Suturas , Adolescente , Adulto , Hormônio Antimülleriano/sangue , Cistos/sangue , Cistos/cirurgia , Endometriose/cirurgia , Estudos de Viabilidade , Feminino , Adesivo Tecidual de Fibrina/administração & dosagem , Humanos , Cirurgia Endoscópica por Orifício Natural , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/cirurgia , Estudos Prospectivos , Estudos Retrospectivos , Técnicas de Sutura , Vagina/cirurgia , Adulto Jovem
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