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2.
Cancer Biol Med ; 20(12)2024 02 05.
Artigo em Inglês | MEDLINE | ID: mdl-38318809

RESUMO

OBJECTIVE: Real-word data on long-acting luteinizing hormone-releasing hormone (LHRH) agonists in Chinese patients with prostate cancer are limited. This study aimed to determine the real-world effectiveness and safety of the LHRH agonist, goserelin, particularly the long-acting 10.8-mg depot formulation, and the follow-up patterns among Chinese prostate cancer patients. METHODS: This was a multicenter, prospective, observational study in hormone treatment-naïve patients with localized or locally advanced prostate cancer who were prescribed goserelin 10.8-mg depot every 12 weeks or 3.6-mg depot every 4 weeks with or without an anti-androgen. The patients had follow-up evaluations for 26 weeks. The primary outcome was the effectiveness of goserelin in reducing serum testosterone and prostate-specific antigen (PSA) levels. The secondary outcomes included testosterone and PSA levels, attainment of chemical castration (serum testosterone <50 ng/dL), and goserelin safety. The exploratory outcome was the monitoring pattern for serum testosterone and PSA. All analyses were descriptive. RESULTS: Between September 2017 and December 2019, a total of 294 eligible patients received ≥ 1 dose of goserelin; 287 patients (97.6%) were treated with goserelin 10.8-mg depot. At week 24 ± 2, the changes from baseline [standard deviation (95% confidence interval)] in serum testosterone (n = 99) and PSA (n = 131) were -401.0 ng/dL [308.4 ng/dL (-462.5, -339.5 ng/dL)] and -35.4 ng/mL [104.4 ng/mL (-53.5, -17.4 ng/mL)], respectively. Of 112 evaluable patients, 100 (90.2%) achieved a serum testosterone level < 50 ng/dL. Treatment-emergent adverse events (TEAEs) and severe TEAEs occurred in 37.1% and 10.2% of patients, respectively. The mean testing frequency (standard deviation) was 1.6 (1.5) for testosterone and 2.2 (1.6) for PSA. CONCLUSIONS: Goserelin 10.8-mg depot effectively achieved and maintained castration and was well-tolerated in Chinese patients with localized and locally advanced prostate cancer.


Assuntos
Gosserrelina , Neoplasias da Próstata , Masculino , Humanos , Gosserrelina/efeitos adversos , Antígeno Prostático Específico/uso terapêutico , Antineoplásicos Hormonais/efeitos adversos , Estudos Prospectivos , Neoplasias da Próstata/tratamento farmacológico , Testosterona/uso terapêutico , China
3.
Phytochemistry ; 218: 113952, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38096963

RESUMO

Lanostane-type triterpenoids are the main characteristic constituents in Ganoderma mushrooms. Phytochemical analysis on the ethanol extract of the fruiting bodies of Ganoderma amboinense led to isolation and identification of twelve previously undescribed lanostane triterpenoids (1-12). Their chemical structures were determined by HR-ESI-MS, IR, and NMR spectroscopic analysis, NMR calculation, as well as X-ray crystallography. All isolates were evaluated for the α-glucosidase inhibitory and anti-inflammatory activities. Compounds 1, 5, 6, and 11 showed significant α-glucosidase inhibitory activity with IC50 values ranging from 33.5 µM to 96.0 µM. Moreover, compound 12 showed anti-inflammatory activity with IC50 value of 21.7 ± 2.1 µM.


Assuntos
Ganoderma , Triterpenos , Triterpenos/farmacologia , Triterpenos/química , Estrutura Molecular , Ganoderma/química , alfa-Glucosidases , Carpóforos/química , Esteroides/análise , Anti-Inflamatórios
4.
Plants (Basel) ; 12(21)2023 Nov 02.
Artigo em Inglês | MEDLINE | ID: mdl-37960115

RESUMO

Sorghum mosaic virus (SrMV, the genus Potyvirus of the family Potyviridae) is a causal agent of common mosaic in sugarcane and poses a threat to the global sugar industry. In this study, a total of 901 sugarcane leaf samples with mosaic symptom were collected from eight provinces in China and were detected via RT-PCR using a primer pair specific to the SrMV coat protein (CP). These leaf samples included 839 samples from modern cultivars (Saccharum spp. hybrids) and 62 samples from chewing cane (S. officinarum). Among these, 632 out of 901 (70.1%) samples were tested positive for SrMV. The incidences of SrMV infection were 72.3% and 40.3% in modern cultivars and chewing cane, respectively. Phylogenetic analysis showed that all tested SrMV isolates were clustered into three clades consisting of six phylogenetic groups based on 306 CP sequences (this study = 265 and GenBank database = 41). A total of 10 SrMV isolates from South America (the United States and Argentina) along with 106 isolates from China were clustered in group D, while the remaining 190 SrMV isolates from Asia (China and Vietnam) were dispersed in five groups. The SrMV isolates in group F were limited to Yunnan province in China, and those in group A were spread over eight provinces. A significant genetic heterogeneity was elucidated in the nucleotide sequence identities of all SrMV CPs, ranging from 69.0% to 100%. A potential recombination event was postulated among SrMV isolates based on CP sequences. All tested SrMV CPs underwent dominant negative selection. Geographical isolation (South America vs. Asia) and host types (modern cultivars vs. chewing cane) are important factors promoting the genetic differentiation of SrMV populations. Overall, this study contributes to the global understanding of the genetic evolution of SrMV and provides a valuable resource for the epidemiology and management of the mosaic in sugarcane.

5.
Phytochemistry ; 215: 113856, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37717643

RESUMO

Twelve previously undescribed and four known lanostane triterpenoids were isolated from the fruiting bodies of Ganoderma calidophilum. The structures of undescribed compounds, ganodecalones H-S (1-12), were elucidated by extensive spectroscopic analysis as well as ECD and NMR calculations. Compound 4 showed significant inhibitory activity against human leukaemia cell line K562, gastric cancer cell line SGC-7901, and cervical cancer cell line HeLa with IC50 values of 13.10 ± 0.19, 17.26 ± 4.75, and 4.36 ± 0.58 µM, respectively. Compound 16 exhibited inhibitory potency against protein tyrosine phosphatase 1B (PTP1B) and α-glucosidase with IC50 values of 30.2 ± 0.13 µM and 120.6 ± 0.14 µM, respectively. The binding sites and interactions of 16 with PTP1B and α-glucosidase were revealed using molecular docking simulations.


Assuntos
Ganoderma , Triterpenos , Humanos , Triterpenos/química , alfa-Glucosidases , Estrutura Molecular , Simulação de Acoplamento Molecular , Carpóforos/química , Ganoderma/química , Esteroides/análise
6.
Pharmaceutics ; 15(7)2023 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-37514013

RESUMO

Bacterial biofilms pose a serious threat to human health, as they prevent the penetration of antimicrobial agents. Developing nanocarriers that can simultaneously permeate biofilms and deliver antibacterial agents is an attractive means of treating bacterial biofilm infections. Herein, photosensitive metal-organic framework (MOF) nanoparticles were developed to promote the penetration of antibiotics into biofilms, thereby achieving the goal of eradicating bacterial biofilms through synergistic photodynamic and antibiotic therapy. First, a ligand containing benzoselenadiazole was synthesized and incorporated into MOF skeletons to construct benzoselenadiazole-doped MOFs (Se-MOFs). The growth of the Se-MOFs could be regulated to obtain nanoparticles (Se-NPs) in the presence of benzoic acid. The singlet oxygen (1O2) generation efficiencies of the Se-MOFs and Se-NPs were evaluated. The results show that the Se-NPs exhibited a higher 1O2 generation efficacy than the Se-MOF under visible-light irradiation because the small size of the Se-NPs was conducive to the diffusion of 1O2. Afterward, an antibiotic drug, polymyxin B (PMB), was conjugated onto the surface of the Se-NPs via amidation to yield PMB-modified Se-NPs (PMB-Se-NPs). PMB-Se-NPs exhibit a synergistic antibacterial effect by specifically targeting the lipopolysaccharides present in the outer membranes of Gram-negative bacteria through surface-modified PMB. Benefiting from the synergistic therapeutic effects of antibiotic and photodynamic therapy, PMB-Se-NPs can efficiently eradicate bacterial biofilms at relatively low antibiotic doses and light intensities, providing a promising nanocomposite for combating biofilm infections.

7.
Acta Cir Bras ; 38: e380923, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36995820

RESUMO

PURPOSE: To investigate the role and mechanism of ß1,3-N-acetylglucosaminyltransferase-3 gene (B3GNT3) in esophageal cancer (ESCA). METHODS: The starBase database was used to evaluate the expression of B3GNT3. B3GNT3 function was measured using KYSE-30 and KYSE-410 cells of esophageal squamous cell carcinoma (ESCC) cell lines. The mRNA levels were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Cell counting kit-8, clone formation assay and transwell assay were used to detect the changes of proliferation, invasion and migration. RESULTS: B3GNT3 expression was higher in ESCA tissues than in normal tissues. The overall survival rate of ESCA patients with high B3GNT3 expression was lower than that of ESCA patients with low B3GNT3 expression. In vitro functional experiments showed that the proliferation ability, migration and invasion ability of KYSE-30 and KYSE-410 cells with B3GNT3 interference were lower than those of the control, and the overexpression of B3GNT3 had the opposite effect. After silencing B3GNT3 expression in ESCC cell lines, the growth of both cell lines was inhibited and the invasiveness was decreased. Knockdown of B3GNT3 reduced the growth rate and Ki-67 expression level. CONCLUSIONS: B3GNT3, as an oncogene, may promote the growth, invasion and migration of ESCC cell.


Assuntos
Neoplasias Esofágicas , Carcinoma de Células Escamosas do Esôfago , MicroRNAs , Humanos , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/metabolismo , Neoplasias Esofágicas/patologia , Carcinoma de Células Escamosas do Esôfago/genética , Carcinoma de Células Escamosas do Esôfago/metabolismo , Carcinoma de Células Escamosas do Esôfago/patologia , Proliferação de Células , Linhagem Celular Tumoral , Movimento Celular/genética , Oncogenes , MicroRNAs/genética , N-Acetilglucosaminiltransferases/genética
8.
Biochem Biophys Res Commun ; 648: 66-71, 2023 03 12.
Artigo em Inglês | MEDLINE | ID: mdl-36736093

RESUMO

Antimicrobial peptides (AMPs) are vital components of the nonspecific immune system that represent a promising broad-spectrum alternative to conventional antibiotics. Several short cationic antimicrobial peptides show highly effective antibacterial activity and low hemolytic activity, which are based on the action of a few critical amino acids, such as phenylalanine (F) and lysine (K). Previous studies have reported that Fmoc-based phenylalanine peptides possess appreciable antibacterial potency against Gram-positive bacteria, but their ability to kill Gram-negative bacteria was suboptimal. In this study, we designed and prepared a series of Fmoc-KnF peptide (n = 1-3) series by adding lysine motifs to strengthen their broad-spectrum antibacterial activity. The effect was investigated that the amount of lysine in Fmoc-F peptides on their antibacterial properties and hemolytic activities. Our results showed that the Fmoc-KKF peptide holds the strongest antimicrobial activity against both Gram-positive and negative bacteria among all designed peptides, as well as low hemolytic activity. These results provide support for the general strategy of enhancing the broad-spectrum antibacterial activity of AMPs through increased lysine content.


Assuntos
Peptídeos Catiônicos Antimicrobianos , Lisina , Peptídeos Catiônicos Antimicrobianos/farmacologia , Peptídeos Catiônicos Antimicrobianos/química , Lisina/química , Antibacterianos/farmacologia , Antibacterianos/química , Bactérias , Bactérias Gram-Negativas , Fenilalanina/química , Testes de Sensibilidade Microbiana
9.
Acta cir. bras ; 38: e380923, 2023. graf, ilus
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1429538

RESUMO

Purpose: To investigate the role and mechanism of ß1,3-N-acetylglucosaminyltransferase-3 gene (B3GNT3) in esophageal cancer (ESCA). Methods: The starBase database was used to evaluate the expression of B3GNT3. B3GNT3 function was measured using KYSE-30 and KYSE-410 cells of esophageal squamous cell carcinoma (ESCC) cell lines. The mRNA levels were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Cell counting kit-8, clone formation assay and transwell assay were used to detect the changes of proliferation, invasion and migration. Results: B3GNT3 expression was higher in ESCA tissues than in normal tissues. The overall survival rate of ESCA patients with high B3GNT3 expression was lower than that of ESCA patients with low B3GNT3 expression. In vitro functional experiments showed that the proliferation ability, migration and invasion ability of KYSE-30 and KYSE-410 cells with B3GNT3 interference were lower than those of the control, and the overexpression of B3GNT3 had the opposite effect. After silencing B3GNT3 expression in ESCC cell lines, the growth of both cell lines was inhibited and the invasiveness was decreased. Knockdown of B3GNT3 reduced the growth rate and Ki-67 expression level. Conclusion: B3GNT3, as an oncogene, may promote the growth, invasion and migration of ESCC cell.


Assuntos
Oncogenes , N-Acetilglucosaminiltransferases/análise , Ensaios de Migração Celular , Transcriptoma , Carcinoma de Células Escamosas do Esôfago , Neoplasias Esofágicas/fisiopatologia
10.
BMJ Open ; 12(9): e058788, 2022 09 29.
Artigo em Inglês | MEDLINE | ID: mdl-36175105

RESUMO

INTRODUCTION: Lung cancer is a common malignancy and a major cause of cancer-related deaths worldwide, ranking high in terms of morbidity and prevalence. Exercise is a well-established recovery aid for many chronic respiratory conditions and lung cancer. However, it is difficult to determine the superiority of different exercise training modalities using randomised controlled trials (RCTs) or pairwise meta-analyses. Our Bayesian network meta-analysis (NMA) aimed to compare the impact of different perioperative exercise training modalities on lung function, exercise capacity, adverse events, health-related quality of life and mortality in patients undergoing lung cancer surgery, including preoperative and postoperative patients. METHODS AND ANALYSIS: We will perform a comprehensive literature search using PubMed, EMBASE, Cochrane Library and Web of Science, from inception to May 2022, to identify studies that potentially provide data regarding exercise training modalities for patients with lung cancer. We will assess the risk of bias according to the Cochrane risk-of-bias tool and certainty of evidence for the main outcomes using the Grading of Recommendations Assessment, Development and Evaluation framework. Pairwise meta-analyses will be conducted using a random effects model and Stata software, and the NMA will be analysed using R software. ETHICS AND DISSEMINATION: Ethical approval and patient consent were not required because this study was a meta-analysis of published RCTs. The results of this study are submitted to a peer-reviewed journal for publication. PROSPERO REGISTRATION NUMBER: CRD42021278923.


Assuntos
Neoplasias Pulmonares , Exercício Físico , Humanos , Metanálise como Assunto , Metanálise em Rede , Período Pós-Operatório , Qualidade de Vida , Revisões Sistemáticas como Assunto
12.
Transl Cancer Res ; 11(4): 754-760, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35571653

RESUMO

Background: There are many types of gastrojejunostomy reconstruction after laparoscopy-assisted distal gastrectomy (LADG) for gastric cancer, each of which has merits and demerits. This study introduced a novel method (called pant-shaped anastomosis) involving the construction of a side-to-side anastomosis between the afferent loop and efferent loop at the site of gastrojejunal anastomosis using a linear stapler. The results of applying pant-shaped anastomosis to LADG were also analyzed. Methods: The clinical data of 96 patients who underwent LADG with pant-shaped anastomosis between June 2018 and June 2020 at The First Affiliated Hospital of Wannan Medical College (Wuhu City, China) were analyzed retrospectively. Results: All procedures were successfully completed without conversion to open laparotomy. An average pant-shaped anastomosis took 22 min to construct and had a mean incision length of 5.3 cm. The mean time to postoperative first flatus was 3.5 days. The mean time to intake of an oral semiliquid diet was 5.5 days. The average postoperative hospital stay was 8.2 days. No patient developed extraluminal bleeding, intraluminal bleeding, anastomosis leakage, afferent obstruction, internal herniation or pancreatitis. The proportion of patients who experienced significant reflux was 10.1% (Visick III-IV). In total, 62.6% of patients exhibited endoscopic reflux gastritis of grade 1 or less. Conclusions: Pant-shaped anastomosis is a safe and simple procedure. It is a feasible option to reduce afferent obstruction after LADG in patients with distal gastric cancer.

13.
Basic Clin Androl ; 32(1): 6, 2022 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-35382740

RESUMO

BACKGROUND: Severe or complete asthenozoospermia is a rare entity that can lead to male infertility. In this study, we explored whether different extents of severe or complete asthenozoospermia could affect intracytoplasmic sperm injection (ICSI) outcomes and compared the ICSI outcomes using testicular spermatozoa with those using ejaculated spermatozoa in couples with complete asthenozoospermia. RESULTS: Ninety-seven couples with severe or complete asthenozoospermia who underwent ICSI between January 2014 and December 2018 were included. According to the sperm category used in ICSI, patients were categorized into four groups: ejaculated progressive motile sperm group (Ep-group), ejaculated non-progressive motile sperm group (En-group), ejaculated immotile sperm group (Ei-group), and testicular sperm group (TESE-group). We compared the baseline characteristics, hormone profile, semen parameters, normal fertilization, good-quality embryos on day 3, transferred embryos, and ICSI outcomes in the four groups. The clinical pregnancy rate was significantly increased in the Ep-group (65.4%, P = 0.019) and TESE-group (63.6%, P = 0.035) compared with that in the Ei-group (23.1%). The ongoing pregnancy rate in the Ei-group was significantly lower than that in the Ep-group (23.1% vs. 61.5%, P = 0.041). Moreover, the biochemical pregnancy rate, ongoing pregnancy rate, and live birth rate were much lower in the Ei-group than in the TESE-group (30.8% vs. 63.6%, 23.1% vs. 40.4% and 23.1% vs. 40.4%, respectively). CONCLUSIONS: In couples with complete asthenozoospermia, testicular spermatozoa should be preferred to ejaculated spermatozoa for obtaining a better ICSI outcome. With the appropriate selection of testicular spermatozoa, the extent of severe or complete asthenozoospermia may not affect the ICSI outcomes. Future studies with a larger sample size are warranted to validate these findings.


RéSUMé: CONTEXTE: L'asthénozoospermiesévère ou complète est une entité rare qui peut conduire à l'infertilité masculine. Dans cette étude, nous avons exploré si les différentes étendues de l'asthénozoospermie sévère ou complète pouvaient affecter les résultats de l'injection intracytoplasmique de spermatozoïdes (ICSI), et nous avons comparé les résultats de l'ICSI obtenus avec des spermatozoïdes testiculaires à ceux obtenus avec des spermatozoïdes éjaculés chez les couples atteints d'asthénozoospermie complète. RéSULTATS: Quatre-vingt-dix-sept couples atteints d'asthénozoospermie sévère ou complète qui ont eu une ICSI entre janvier 2014 et décembre 2018 ont été inclus. Selon la catégorie de spermatozoïdes utilisée dans l'ICSI, les patients ont été classés en quatre groupes : groupe de spermatozoïdes mobiles progressifs éjaculés (groupe Ep), groupe de spermatozoïdes mobiles non progressifs éjaculés (groupe En), groupe de spermatozoïdes immobiles éjaculés (groupe Ei) et groupe de spermatozoïdestesticulaires (groupe TESE). Nous avons comparé les caractéristiques de base, le profil hormonal, les paramètres du sperme, la fécondation normale, les embryons de bonne qualité au jour 3, les embryons transférés, et les résultats de l'ICSI dans les quatre groupes. Le taux de grossesse clinique était significativement augmenté dans le groupe Ep (65,4%, P = 0,019) et le groupe TESE (63,6%, P = 0,035) par rapport à celui du groupe Ei (23,1%). Le taux de grossesse en cours dans le groupe Ei était significativement inférieur à celui du groupe Ep (23,1% contre 61,5%, P = 0,041). De plus, le taux de grossesse biochimique, le taux de grossesse en cours et le taux de naissances vivantes étaient beaucoup plus faibles dans le groupe Ei que dans le groupe TESE (30,8 % vs 63,6%,23,1 % vs 40,4 % et 23,1 % vs 40,4 %, respectivement). CONCLUSIONS: Chez les couples atteints d'asthénozoospermie complète, les spermatozoïdes testiculaires devraient être préférés aux spermatozoïdes éjaculés pour obtenir un meilleur résultat en ICSI. Avec une sélection appropriée des spermatozoïdes testiculaires, l'étendue de l'asthénozoospermie sévère ou complète pourrait ne pas affecter les résultats de l'ICSI. De futures études avec des échantillons de plus grande taille sont donc justifiées pour valider ces résultats. MOTS-CLéS: Asthénozoospermie; spermatozoïdes éjaculés ; injection intracytoplasmique de spermatozoïdes (ICSI) ; infertilité masculine ; spermatozoïdes testiculaires.

14.
ACS Biomater Sci Eng ; 8(5): 1930-1941, 2022 05 09.
Artigo em Inglês | MEDLINE | ID: mdl-35380774

RESUMO

Inorganic nanomaterials showed great potential as drug carriers for chemotherapeutics molecules due to their biocompatible physical and chemical properties. A manganese-based inorganic nanomaterial manganese phosphate (MnP) had become a new drug carrier in cancer therapy. However, the approach for manganese phosphate preparation and drug integration is still confined in complex methods. Inspired by mimetic mineralization, we proposed a "one-step" method for the preparation of manganese phosphate-doxorubicin (DOX) nanomedicines (MnP-DOX) by manganese ion and DOX complexation. The structural characterization results revealed that the prepared MnP-DOX nanocomplexes were homogeneous with controlled sizes and shapes. More importantly, the MnP-DOX nanocomposites could significantly induce cancer inhibition in vitro and in vivo. The results indicated that the drug molecules were integrated into MnP nanocarriers by mimetic mineralization, which not only prevented the premature release of the drug but also reduced excessive modification. Moreover, the designed MnP-DOX complex showed high loading efficacy and pH-dependent degradation leading to drug release, achieving high efficiency for cancer chemotherapy in vitro and in vivo via a facile process. These achievements presented an approach to construct the manganese phosphate-based chemotherapy nanomedicines by mimetic mineralization for cancer therapy.


Assuntos
Nanocompostos , Neoplasias , Doxorrubicina/farmacologia , Doxorrubicina/uso terapêutico , Portadores de Fármacos/uso terapêutico , Humanos , Manganês/química , Manganês/uso terapêutico , Nanomedicina , Neoplasias/tratamento farmacológico , Compostos Organometálicos
15.
Andrologia ; 54(4): e14363, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-34984692

RESUMO

We report a case of primary seminal vesicle spindle cell sarcoma of a 57-year-old man who underwent multiple surgical treatment. The first diagnosis of a local hospital was a right seminal vesicle cyst, so only laparoscopic decompression was performed. Postoperatively, the patient gradually developed lower abdominal discomfort, frequent and urgent urination, dysuria and constipation. Digital rectal examination palpated a heterogeneous mass. Magnetic resonance imaging showed a multilocular cystic mass of about 4.5 cm in diameter in the right seminal vesicle, which was diagnosed as a recurrent cyst. The patient underwent a second operation in our hospital, but the tumour could not be completely removed because of severe peripheral adhesions. The postoperative pathological diagnosis was seminal vesicle cystadenoma with spindle cell sarcoma. One month later, a computed tomography scan performed at another hospital showed that the mass had invaded the bladder and sigmoid colon. The pathological diagnosis of re-examination was spindle cell liposarcoma. After neoadjuvant chemotherapy, extended resection of the tumour was performed, and adjuvant chemotherapy was continued after surgery. The total duration of follow-up was 19 months and 3 months after the third surgery. The patient survived with no recurrence or metastasis.


Assuntos
Cistadenoma , Neoplasias dos Genitais Masculinos , Sarcoma , Cistadenoma/cirurgia , Neoplasias dos Genitais Masculinos/diagnóstico por imagem , Neoplasias dos Genitais Masculinos/cirurgia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Sarcoma/diagnóstico por imagem , Sarcoma/cirurgia , Glândulas Seminais/diagnóstico por imagem , Glândulas Seminais/patologia , Glândulas Seminais/cirurgia
16.
Gastroenterol Res Pract ; 2022: 4494401, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35087584

RESUMO

RESULTS: There were no significant differences between the cRY group and pRY group regarding age, sex, BMI, neoadjuvant therapy, preoperative comorbidities, history of laparotomy, ASA score, tumor location, pathological stage, total operative time, incision length, blood loss, time-to-first flatus, time-to-first soft diet, and postoperative hospital stays. The proportions of patients who received a 21 mm stapler were higher in the cRY group (7/44) than that in the pRY group (0/68) (P = 0.003). 7 anastomotic complications were reported (6 in the cRY group versus 1 in pRY group; P = 0.028) of which five (83.3%) in the cRY were anastomotic stenosis versus none in the pRY group (P = 0.044). CONCLUSIONS: The application of pant-shaped anastomosis for esophagojejunostomy after LTG is a safe and feasible procedure and has an advantage when the jejunum diameter is small.

17.
Bioact Mater ; 8: 529-544, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34541418

RESUMO

Nerve guidance conduits with hollow lumen fail to regenerate critical-sized peripheral nerve defects (15 mm in rats and 25 mm in humans), which can be improved by a beneficial intraluminal microenvironment. However, individual cues provided by intraluminal filling materials are inadequate to eliminate the functional gap between regenerated nerves and normal nerves. Herein, an aligned fibrin/functionalized self-assembling peptide (AFG/fSAP) interpenetrating nanofiber hydrogel that exerting synergistic topographical and biochemical cues for peripheral nerve regeneration is constructed via electrospinning and molecular self-assembly. The hydrogel possesses an aligned structure, high water content, appropriate mechanical properties and suitable biodegradation capabilities for nerve repair, which enhances the alignment and neurotrophin secretion of primary Schwann cells (SCs) in vitro, and successfully bridges a 15-mm sciatic nerve gap in rats in vivo. The rats transplanted with the AFG/fSAP hydrogel exhibit satisfactory morphological and functional recovery in myelinated nerve fibers and innervated muscles. The motor function recovery facilitated by the AFG/fSAP hydrogel is comparable with that of autografts. Moreover, the AFG/fSAP hydrogel upregulates the regeneration-associated gene expression and activates the PI3K/Akt and MAPK signaling pathways in the regenerated nerve. Altogether, the AFG/fSAP hydrogel represents a promising approach for peripheral nerve repair through an integration of structural guidance and biochemical stimulation.

18.
Asian J Surg ; 45(1): 425-430, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34315672

RESUMO

BACKGROUND: In this study, we propose an improved Roux-en-Y (RY) surgical method by constructing a proximal jejunum pouch (PP-RY). Postoperative results were evaluated among patients with gastric cancer who underwent PP-RY and standard RY anastomosis. METHODS: The clinical data of patients with gastric cancer who underwent laparoscopic total gastrectomy (LTG) in our center from May 2019 to May 2020 were collected retrospectively. We compared the short-term results of patients in the PP-RY and RY groups using 1:1 propensity score matching (PSM). RESULTS: A total of 317 patients were selected, including those who received RY (n = 249) or PP-RY (n = 68) after LTG. After PSM, both groups had a sample size of 68. During the one-year follow-up period, the incidences of postoperative dumping syndrome (5.6%) and reflux esophagitis (14.8%) were significantly lower in the PP-RY group (P = 0.001 and P = 0.010, respectively). Weight loss (6.5 ± 2.0 kg) and albumin decrease (0.2 ± 0.1 g/dl) were significantly lower (P = 0.038 and P < 0.001, respectively), and the prognostic nutritional index (PNI) was significantly higher in the PP-RY group (P = 0.009). In the QLQ-C30 scale, the degree of anorexia in the PP-RY group was significantly lower than that in the RY group (P<0.05). In the QLQ-STO22 scale, chest and abdomen pain, dietary restriction, and anxiety were significantly lower in the PP-RY group (all P<0.05). CONCLUSION: PP-RY can lead to obvious improvements in nutritional status, reduce short-term complications, and improve quality of life (QoL) for patients after LTG.


Assuntos
Parede Abdominal , Laparoscopia , Neoplasias Gástricas , Anastomose em-Y de Roux , Seguimentos , Gastrectomia , Humanos , Jejuno/cirurgia , Pontuação de Propensão , Qualidade de Vida , Estudos Retrospectivos , Neoplasias Gástricas/cirurgia , Resultado do Tratamento
19.
Biomaterials ; 280: 121310, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34890972

RESUMO

Radial glia (RG) cells that align in parallel in the embryonic brain are found to be able to guide the directed migration of neurons in response to brain injury. Therefore, biomaterials with aligned architectures are supposed to have positive effects on neural migration and neurogenic differentiation for brain injury repair that are rarely addressed, although they have been widely demonstrated in spinal cord and peripheral nerve system. Here, we present a highly biomimetic scaffold of aligned fibrin hydrogel (AFG) that mimics the oriented structure of RG fibers. Through a combination of histological, behavioral, imaging, and transcriptomic analyses, we demonstrated that transplanting the AFG scaffold into injured cortical brains promotes effective migration, differentiation, and maturation of endogenous neural stem cells, resulting in neurological functional recovery. Therefore, this study will light up a new perspective on applying an aligned scaffold to promote cortical regeneration after injury by inducing endogenous neurogenesis.


Assuntos
Lesões Encefálicas , Células-Tronco Neurais , Traumatismos da Medula Espinal , Encéfalo/patologia , Lesões Encefálicas/terapia , Diferenciação Celular , Humanos , Células-Tronco Neurais/patologia , Neurogênese , Traumatismos da Medula Espinal/patologia , Traumatismos da Medula Espinal/terapia
20.
Front Oncol ; 11: 721797, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34527589

RESUMO

The landscape of CDC20 gene expression and its biological impacts across different types of cancers remains largely unknown. Here, a pan-cancer analysis was performed to analyze the role of Cdc20 in various human cancers. Our results indicated that the expression levels of the CDC20 gene were significantly elevated in bladder cancer, breast cancer, colon cancer, rectum cancer, stomach cancer, esophageal cancer, head and neck cancer, kidney cancer, liver cancer, lung cancer, prostate cancer, pancreatic cancer, and uterine cancer. In addition, the expression of CDC20 was significantly and positively correlated with the increase of clinical stages in multiple cancer types, including breast cancer, kidney cancer, and lung cancer, et al. Among 33 cancer subtypes in the TCGA dataset, the high expression of CDC20 was correlated with poor prognosis in 10 cancer types. Furthermore, the abundance of phosphorylated Cdc20 in the primary tumor was elevated and correlated with increased tumor grade. Next, we sought to elucidate the oncogenic role by analyzing its association with immune infiltration. For most cancer types, the CDC20 expression was positively correlated with the infiltration of cancer-associated fibroblasts and myeloid-derived suppressor cells. To further understand its functional activity, we explored the classic Cdc20 downstream substrates, which were found to be mutually exclusive with the expression of Cdc20. Moreover, the pan-cancer analysis of the molecular function of Cdc20 indicated that BUB1, CCNA2, CCNB1, CDK1, MAD2L1, and PLK1 might play a critical role in interaction with Cdc20. The abundance of Cdc20 was further validated at transcriptional and translational levels with a publicly available dataset and clinical tumor tissues. The knockdown of Cdc20 dramatically inhibited tumor growth both in vivo and in vitro. Therefore, our studies delineated the oncogenic role of CDC20 and its prognostic significance at the pan-cancer level and proved its functional activity in Cdc20 high expression cancer types. Our studies will merits further molecular assays to understand the potential role of Cdc20 in tumorigenesis and provide the rationale for developing novel therapeutic strategies.

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