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1.
J Dairy Sci ; 107(2): 1244-1262, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37777002

RESUMO

The objective of this study was to investigate the immunopotential of ruminal lipopolysaccharides (LPS) on cultured primary bovine rumen epithelial cells (REC). Primary bovine REC were isolated from 6 yearling steers and grown in culture for 3 experiments. Experiment 1 aimed to determine the immunopotential of ruminal LPS, experiment 2 aimed to assess tolerance to chronic LPS exposure, and experiment 3 aimed to evaluate antagonistic interactions between ruminal and Escherichia coli LPS. In experiments 1 and 2, REC were exposed to nonpyrogenic water, 20 µg/mL E. coli LPS (EC20), 10 µg/mL ruminal LPS, 20 µg/mL ruminal LPS, and 40 µg/mL ruminal LPS, either continuously or intermittently. For the continuous exposure, REC underwent a 6 h exposure, whereas for the intermittent exposure, the procedure was: (1) a 12 h continuous exposure to treatments followed by LPS removal for 24 h and then another 12 h of exposure (RPT), and (2) a 12 h continuous exposure to treatments followed by LPS removal and a recovery period of 36 h (RCV). In experiment 3, REC were exposed to nonpyrogenic water, 1 µg/mL E. coli LPS, 1 µg/mL ruminal LPS to 1 µg/mL E. coli LPS, 10 µg/mL ruminal LPS to 1 µg/mL E. coli LPS, and 50 µg/mL ruminal LPS to 1 µg/mL E. coli LPS. Each experiment was done as a complete randomized block design with 6 REC donors. The REC-donor was used as blocking factor. Each treatment had 2 technical replicates, and treatment responses for all data were analyzed with the MIXED procedure of SAS. For all experiments, total RNA was extracted from REC and real-time quantitative PCR was performed to determine the relative expression of genes for toll-like receptors (TLR2 and TLR4), proinflammatory cytokines (TNF, IL1B, and IL6), chemokines (CXCL2 and CXCL8), growth factor-like cytokines (CSF2 and TGFB1), and a lipid mediator (PTGS2). In experiment 1, the targeted genes were upregulated by EC20, whereas all ruminal LPS treatments resulted in a lower transcript abundance. Regarding RPT, and RCV condition, in experiment 2, the expression of targeted genes was not affected or was at a lower abundance to EC20 when compared with ruminal LPS treatments. Lastly, in experiment 3, all targeted genes resulted in lower or similar transcript abundance on all ruminal LPS ratios. Overall, our results indicate that ruminal LPS have a limited capacity to activate the TLR4/NF-kB pathway and to induce the expression of inflammatory genes.


Assuntos
Lipopolissacarídeos , Receptor 4 Toll-Like , Bovinos , Animais , Lipopolissacarídeos/farmacologia , Lipopolissacarídeos/metabolismo , Receptor 4 Toll-Like/metabolismo , Escherichia coli/metabolismo , Células Epiteliais/metabolismo , Citocinas/metabolismo , Água/metabolismo
2.
Zhonghua Nei Ke Za Zhi ; 62(11): 1311-1316, 2023 Nov 01.
Artigo em Chinês | MEDLINE | ID: mdl-37935497

RESUMO

Objective: To explore the effectiveness and safety of endovascular treatment (EVT) for patients with acute anterior circulation ischemic stroke with symptom onset exceeding 24 h. Methods: In this retrospective cohort study, data were extracted from patients who underwent endovascular treatment for acute anterior circulation ischemic stroke at the First Hospital of Jilin University from February 2019 to April 2022. A total of 569 patients were included, with a mean age of 63 (54-70) years. Among them, 398 (69.9%) were male. The patients were divided into two groups based on symptom onset time:>24 h group and≤24 h group. Propensity score matching (PSM) was used to match the patients in a 1︰1 ratio between the>24 h group and the≤24 h group. Logistic regression was used to evaluate the impact of symptom onset time on outcome events. Results: Before PSM, compared with≤24 h group, the>24 h group had a younger age [56 (48, 64) vs. 64 (55, 70), Z=-3. 60, P<0.001]; lower proportion of prior atrial fibrillation [1.8% (1/57) vs. 21.1% (108/512), χ2=12.39, P<0.001]; lower proportion of wake-up stroke [7.0% (4/57) vs. 27.7% (142/512), χ2=11.54, P<0.001]; lower baseline NIHSS score [11.0 (7.5, 14.0) vs. 13.0 (10.0, 16.0), Z=-3.22, P<0.001]; and a higher American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology(ASITN/SIR) grading (P<0.001). After PSM, there were no significant differences in baseline characteristics between the two groups. There was no significant difference in the proportion of patients with a modified Rankin Scale (mRS) score≤2 at 90 days after surgery between the two groups (before matching: 42.0% vs. 40.4%, OR=0.745, 95%CI 0.407-1.362, P=0.339; after matching: 51.8% vs. 39.3%, OR=0.511, 95%CI 0.212-1.236, P=0.136). No significant differences were observed in the incidence of any safety outcomes between the>24 h group and the≤24 h group. Conclusion: For patients with acute anterior circulation ischemic stroke with symptom onset exceeding 24 h, EVT is feasible after strict radiological screening and has similar safety and effectiveness as for patients with symptom onset under 24 h.


Assuntos
Isquemia Encefálica , Procedimentos Endovasculares , AVC Isquêmico , Acidente Vascular Cerebral , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Acidente Vascular Cerebral/terapia , Acidente Vascular Cerebral/etiologia , AVC Isquêmico/terapia , Isquemia Encefálica/terapia , Estudos Retrospectivos , Resultado do Tratamento
3.
Zhonghua Jie He He Hu Xi Za Zhi ; 46(4): 373-379, 2023 Apr 12.
Artigo em Chinês | MEDLINE | ID: mdl-36990701

RESUMO

Objective: To investigate the effect of noninvasive positive pressure ventilation(NIPPV) on all-cause mortality in patients with chronic obstructive pulmonary disease-obstructive sleep apnea overlap syndrome(OVS) through long-term follow-up. Methods: A total of 187 OVS patients were divided into the NIPPV group(n=92) and the non-NIPPV group(n=95). Of these, 85 males and 7 females were in the NIPPV group with an average age of (66.5±8.5) years(range 47-80 years); 89 males and 6 females were in the non-NIPPV group with an average age of (67.4±7.8) years(range 44-79 years). Follow-up was performed from enrolment with an average duration of 39(20, 51) months. The all-cause mortality was compared between the two groups. Result: There were no significant differences in their baseline clinical characteristics(all P>0.05), indicating that the data from the two groups were comparable. The Kaplan-Meier curve showed no difference in all-cause mortality between the two groups(log rank P=0.229). However, deaths from cardio-cerebrovascular diseases were higher in the non-NIPPV than in the NIPPV group(15.8% vs. 6.5%,P=0.045). Age, BMI, neck circumference, PaCO2, FEV1, FEV1%, moderate to severe OSA(AHI>15 events/h), mMRC, CAT, number of acute exacerbations of COPD and number of hospitalizations were associated with all-cause death in OVS patients; among which, age(HR 1.067, 95%CI 1.017-1.119, P=0.008), FEV1(HR 0.378, 95%CI 0.176-0.811, P=0.013), and number of COPD exacerbations(HR 1.298, 95%CI 1.102-1.530, P=0.002) were independent risk factors for all-cause mortality in OVS patients. Conclusions: The combination of NIPPV and conventional treatment may reduce cardio-cerebrovascular disease-related mortality in OVS patients. The deceased OVS patients had severe airflow limitation and mild to moderate OSA. Old age, low FEV1 and COPD exacerbations were independent risk factors for all-cause mortality in OVS patients.


Assuntos
Doença Pulmonar Obstrutiva Crônica , Síndromes da Apneia do Sono , Apneia Obstrutiva do Sono , Humanos , Masculino , Feminino , Seguimentos , Respiração com Pressão Positiva , Doença Pulmonar Obstrutiva Crônica/complicações , Apneia Obstrutiva do Sono/terapia , Apneia Obstrutiva do Sono/complicações
4.
Zhonghua Wai Ke Za Zhi ; 61(6): 446-450, 2023 Jun 01.
Artigo em Chinês | MEDLINE | ID: mdl-37088474

RESUMO

The incidence of parastomal hernia is substantially high, significantly affecting the quality of life of patients with stoma. How to effectively solve the problem of parastomal hernia is a long-term focus of hernia and abdominal wall surgery and colorectal surgery. The European Hernia Society guidelines on prevention and treatment of parastomal hernia published in 2018 has recommended the use of a prophylactic mesh to prevent parastomal hernia for the first time. In the following 5 years, more randomized controlled trials of multi-center, large-sample, double-blind, long-term follow-up have been published, and no significant effect of mesh prophylaxis has been observed on the incidence of parastomal hernia. However, whether mesh could decrease surgical intervention by limiting the symptoms of parastomal hernias would become a potential value of prophylaxis, which requires further research to elucidate.


Assuntos
Hérnia Ventral , Hérnia Incisional , Estomas Cirúrgicos , Humanos , Hérnia Ventral/etiologia , Hérnia Ventral/prevenção & controle , Hérnia Ventral/cirurgia , Telas Cirúrgicas/efeitos adversos , Qualidade de Vida , Hérnia Incisional/prevenção & controle , Estomas Cirúrgicos/efeitos adversos , Medicina Baseada em Evidências , Colostomia/efeitos adversos , Ensaios Clínicos Controlados Aleatórios como Assunto
5.
Colorectal Dis ; 19(7): O246-O252, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28477432

RESUMO

AIM: Extralevator abdominoperineal excision (ELAPR) is challenging 'conventional' abdominoperineal excision (APR), yet the safety and efficacy of ELAPR is still under debate. We therefore developed a laparoscopic APR with trans-abdominal individualized levator transection (LAPR-TILT) approach and compared the outcome with a conventional laparoscopic APR (CLAPR). METHOD: All eligible patients were entered a single-centre randomized controlled trial to compare CLAPR and LAPR-TILT. We assessed the first 185 patients, including operative findings, complications, histopathology and urogenital function. RESULTS: Ninety-three patients in the CLAPR group and 92 patients in the APR-TILT group were included for analysis. The APR-TILT procedure took less time [137 (101-175) min vs 146 (102-187) min; P = 0.03], mainly owing to faster perineal dissection. APR-TILT resulted in a reduced rate of bowel perforation (1.1% vs 8.6%; P = 0.04), circumferential resection margin positivity (1.1% vs 10.8%; P = 0.01) and postoperative wound complications (5.4% vs 16.2%; P = 0.02) compared with the CLAPR procedure. At a median follow-up of 19 months after surgery, three patients (3.2%) in the CLAPR group had tumour recurrence while no tumour recurrence occurred in the LAPR-TILT group. Patients who underwent LAPR-TILT reported fewer urinary or sexual problems (LAPR-TILT vs CLAPR, 10.9% vs 24.7% and 17.4% vs 38.7%, respectively). CONCLUSION: Compared with CLAPR, LAPR-TILT achieved better pathological results for factors that are surrogate parameters for local recurrence. LAPR-TILT could also reduce the risk of urogenital dysfunction.


Assuntos
Abdome/cirurgia , Dissecação/métodos , Laparoscopia/métodos , Períneo/cirurgia , Neoplasias Retais/cirurgia , Idoso , Dissecação/efeitos adversos , Feminino , Humanos , Perfuração Intestinal/etiologia , Laparoscopia/efeitos adversos , Masculino , Margens de Excisão , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/etiologia , Duração da Cirurgia , Complicações Pós-Operatórias/etiologia , Neoplasias Retais/patologia , Reto/patologia , Reto/cirurgia , Método Simples-Cego , Resultado do Tratamento
6.
J Clin Pharm Ther ; 42(2): 237-238, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28144968

RESUMO

WHAT IS KNOWN AND OBJECTIVE: Drug-induced nephrotoxicity is potentially lethal. When sodium aescinate is given to surgical inpatients to treat postoperative inflammation and oedema, adverse drug reactions and drug-drug interactions must be closely monitored. CASE DESCRIPTION: We report a case of a 58-year-old man with phalangeal fractures who suffered from acute kidney injury that was most likely induced by the drug interaction between sodium aescinate and ginkgo biloba extract due to the protein-binding and metabolic characteristics of these drugs. WHAT IS NEW AND CONCLUSION: Close monitoring and the prompt discontinuation of drugs that have high protein-binding capacity and hepatic metabolism are necessary to avoid drug-drug interactions in patients who are treated with sodium aescinate.


Assuntos
Injúria Renal Aguda/induzido quimicamente , Interações Ervas-Drogas , Extratos Vegetais/efeitos adversos , Saponinas/efeitos adversos , Triterpenos/efeitos adversos , Citocromo P-450 CYP2C9/fisiologia , Citocromo P-450 CYP3A/fisiologia , Ginkgo biloba , Humanos , Masculino , Pessoa de Meia-Idade , Ligação Proteica
7.
Genet Mol Res ; 15(4)2016 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-27808367

RESUMO

Reciprocal translocation is closely associated with male infertility and recurrent miscarriages. Balanced reciprocal translocations associated with reproductive failures are predominantly observed on chromosome 1. Additionally, infertile male patients present a number of breakpoints throughout chromosome 1. A translocation breakpoint might interrupt the structure of an important gene, leading to male infertility. Here, we report the breakpoints on chromosome 1 translocation and the clinical features presented in carriers, to enable informed genetic counseling of these patients. Balanced reciprocal translocations were found in 1.57% of the tested patients. Among 82 patients, 23 patients (28.05%) were carriers of the chromosome 1 translocation: 12 presented pre-gestational infertility with clinical manifestations of azoospermia or oligozoospermia, while 11 patients presented gestational infertility (able to conceive but with a tendency to miscarry or give birth to a stillborn). The breakpoint at 1p22 was predominantly observed in these patients; additionally, breakpoints at 1p31.2, 1p10, and 1q25 were associated with gestational infertility. Breakpoints at 1p13, 1q12, and 1q21 were associated with pre-gestational infertility. These results suggested that breakpoints at 1p32, 1p13, and 1q21 were predominantly associated with pre-gestational infertility, while that at 1q25 was associated with gestational infertility. Chromosome 1 translocation carriers with infertility presenting as azoospermia or oligospermia should be counseled on chromosomal breakpoints and the different molecular technologies available to facilitate reproduction.


Assuntos
Cromossomos Humanos Par 1/genética , Aconselhamento Genético , Translocação Genética , Quebra Cromossômica , Heterozigoto , Humanos , Infertilidade Masculina/genética , Cariótipo , Masculino
8.
Genet Mol Res ; 15(4)2016 Oct 17.
Artigo em Inglês | MEDLINE | ID: mdl-27813606

RESUMO

Balanced reciprocal translocations are associated with reproductive failure. Some reciprocal translocation carriers exhibit azoospermia or oligozoospermia, and an association exists between these chromosomal abnormalities and recurrent abortion. Previous reports have indicated the involvement of chromosome 7 translocations in male infertility and recurrent miscarriage. A translocation breakpoint can occur within an important gene, interrupting its structure and leading to male infertility. However, clinical characteristics resulting from chromosome 7 translocation breakpoints have not been studied. Here, we report such breakpoints and their associated clinical features, to enable informed genetic counseling of carriers. Balanced reciprocal translocations were found in 1.57% of the tested patients. Among these 82 individuals, 14 (17.07%) carried a chromosome 7 translocation, of which, five presented with pregestational infertility and clinical manifestations of oligozoospermia or necrospermia, while nine presented with gestational infertility (i.e., were able to conceive, but often resulting in miscarriage). Breakpoints at 7q31 and 7q36 were associated with pregestational infertility, whereas those at 7p10, 7q21.2, 7q22, and 7q32 were connected to gestational infertility. However, the breakpoint at 7p15 was associated with both. Chromosome 7 translocation carriers with pregestational or gestational infertility should be counseled on chromosomal breakpoints and the various molecular technologies available for assisted reproduction.


Assuntos
Quebra Cromossômica , Cromossomos Humanos Par 7/genética , Aconselhamento Genético , Translocação Genética , Heterozigoto , Humanos , Cariotipagem , Masculino
9.
Zhonghua Yi Xue Za Zhi ; 96(36): 2893-2897, 2016 Sep 27.
Artigo em Chinês | MEDLINE | ID: mdl-27760634

RESUMO

Objective: To evaluate the efficacy of Bailemian capsule combined with self-help cognitive behavioral therapy (CBTI-SH) in treatment of chronic insomnia. Methods: Approved by the Ethics Committee of the hospital, 60 patients with chronic insomnia were randomly divided into two groups, the test group (Bailemian capsule combined with CBTI-SH) and the control group (CBTI-SH alone). Each group contained 30 cases. After 4 weeks for therapy, the sleep quality, mood and adverse reactions of treatment in patients were evaluated by sleep diary, sleep severity index scale (ISI), self-rating anxiety scale (SAS), self-rating depression scale (SDS) and treatment emergent symptom scale (TESS) respectively. The data were statistically analyzed. Results: The total effective rate in the test group was significantly higher than that of the control group (73.3% vs 46.7%, P<0.05). Compared to the control group, the sleep onset latency was significantly shorten [(38.3±13.1) vs (27.5±9.8) min, P<0.05], while the sleep efficiency were increased markedly [(76.6±5.7)% vs (80.5±6.6)%, P<0.05] in the test group. In the test group, the sleep onset latency, the total sleep time, the time in bed and sleep efficiency both improved significantly after treatment [(27.5±9.8) vs (56.2±19.4) min, (334.4±41.6) vs (310.8±31.7) min, (415.6±38.9) vs (446.9±39.9) min, (80.5±6.6)% vs (69.6±4.9)%, all P<0.05], while in the control group, the sleep onset latency, the time in bed and sleep efficiency also improved significantly after therapy [(38.3±13.1) vs (55.2±16.2) min, (430.4±32.6) vs (452.4±34.4) min, (76.6±5.7)% vs (69.9±5.2)%, all P<0.05]. After combined treatment, the SAS and SDS scores [(51.5±6.5) vs (55.0±5.8), (52.0±5.3) vs (55.3±4.4), both P<0.05] both decreased significantly than those of the control group, at the same time, the SAS and SDS scores decreased significantly after treatment in both the test group and the control group [(51.5±6.5) vs (61.5±4.8), (52.0±5.3) vs (60.2±4.5), (55.0±5.8) vs (62.5±3.7), (55.3±4.4) vs (62.2±3.7), all P<0.01]. Conclusion: The efficacy of Bailemian capsule combined with CBTI-SH in the treatment of chronic insomnia is more effective.


Assuntos
Distúrbios do Início e da Manutenção do Sono , Transtornos de Ansiedade , Terapia Cognitivo-Comportamental , Comportamentos Relacionados com a Saúde , Humanos , Cooperação do Paciente , Sono , Resultado do Tratamento
10.
Cell Tissue Res ; 360(2): 287-96, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25526699

RESUMO

To demonstrate that intra-organ splenosis can engraft and develop after being distributed through the vasculature, tiny fragments of splenic tissues were injected into the inferior vena cava or the portal vein to induce intrapulmonary and intrahepatic splenosis in rats. After 1 month, splenic autograft structures in the lung and liver were assessed for structure by histology, for immunologic compartments by immunohistochemistry, for phagocytic function by carbon uptake and for vascular formation by Microfil (a silicon rubber compound) injection. Intrapulmonary and intrahepatic splenoses were indeed able to spread through the vasculature. The intrapulmonary splenic autografts were trapped and spread out in the interstitium, without forming a capsule. White pulp was markedly developed, showing lymphocyte aggregations that consisted in B cells surrounding the dilated vessel. Splenic sinuses were not definitively observed. Although macrophages were detected by immunohistochemistry, they showed no indication of having phagocytized carbon particles from the vessels, implying a closed circulation. In contrast, intrahepatic splenic autografts formed well-developed capsules, trabeculae and red pulp with splenic sinuses. Macrophages detected by immunohistochemistry were observed capturing carbon particles, which clearly revealed an open system circulation, as seen in normal rat spleen. The development of white pulp was poor and lymphocytes consisting in B cells aggregated in the peripheral margins. These results demonstrate that intra-organ splenosis can spread through the vasculature and that the morphologic and immunologic structures formed in these regenerated autografts are influenced by the organ vasculature and extracellular matrix wherein the tissue fragments settled.


Assuntos
Fígado , Pulmão , Neovascularização Patológica , Esplenose , Animais , Modelos Animais de Doenças , Fígado/irrigação sanguínea , Fígado/metabolismo , Fígado/patologia , Pulmão/irrigação sanguínea , Pulmão/metabolismo , Pulmão/patologia , Masculino , Neovascularização Patológica/metabolismo , Neovascularização Patológica/patologia , Ratos , Ratos Wistar , Esplenose/metabolismo , Esplenose/patologia
11.
Hernia ; 2024 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-38902558

RESUMO

INTRODUCTION: The use of biological graft in laparoscopic inguinal hernia repair (LIHR) has been controversial, and there is a lack of high-level evidence to confirm the value of biological graft in LIHR. The purpose of this study is to evaluate the effectiveness of a novel composite biologics in LIHR. METHODS: A multicenter, single-blinded, randomized controlled clinical trial was designed. Fifty patients with unilateral primary inguinal hernia were randomly assigned to the experimental and control group (1:1). The experimental group was repaired with a non-crosslinked composite extracellular matrix from porcine urinary bladder matrix and small intestinal submucosa (UBM/SIS). The control group was repaired with a lightweight, large-pore, synthetic mesh. The primary endpoint was the effectiveness rate of hernia repair. RESULTS: The patients were followed up for four years. No significant difference was found between the experimental group and the control group in the effective rate of hernia repair (24/24[100%] vs 21/22[95.45%], RR, 0.4667; 95%CI, 0.3294-2.304; P = 0.4783). There was no fever, seroma, infection, groin pain, foreign body discomfort or recurrence in the experimental group during the follow-up. In the control group, there were 2 cases of seroma 14 days after operation, 1 case of groin discomfort 60 days after operation and one case of recurrence 410 days after surgery. CONCLUSION: Compared with the lightweight synthetic mesh, the novel UBM/SIS graft has comparable short-term and medium-term effectiveness in LIHR, and the incidence of postoperative complications such as seroma groin discomfort is lower. Trial registration Clinical Trials Registry: ChiCTR1800020173.

12.
J Med Primatol ; 42(6): 318-24, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23952261

RESUMO

BACKGROUND: Limited physiological data for Tibetan macaques are available at present. This study will provide more rationale for evaluating this species. METHODS: Thirty-seven Tibetan macaques (15 males and 22 females) were used in this study. Somatometric measurements, clinical chemistry and hematology parameters, insulin, and C-peptide were analyzed. RESULTS: Females had higher values of waist and waist hip ratio (WHR) than males in somatometric measurements. There were no significant differences between the two genders in hematology. Significant differences between males and females were only found for aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in biochemistry testing. In addition, females had higher fasting insulin and C-peptide than males. There was a strongly positive correlation between age and some somatometric parameters. CONCLUSIONS: These physiological data will provide veterinarians and researchers with baseline values to evaluate experimental results using Tibetan macaques.


Assuntos
Macaca/anatomia & histologia , Macaca/sangue , Fatores Etários , Alanina Transaminase/sangue , Animais , Aspartato Aminotransferases/sangue , Biometria , Contagem de Células Sanguíneas , Testes de Coagulação Sanguínea , Peptídeo C/sangue , Eletrólitos/sangue , Feminino , Hemoglobinas Glicadas/análise , Hidrocortisona/sangue , Insulina/sangue , Masculino , Valores de Referência
13.
Artigo em Inglês | MEDLINE | ID: mdl-37519047

RESUMO

The presence of anatomical variants in the body may pose clinical challenges to inexperienced surgeons or clinicians and could cause misdiagnosis or treatment errors. Similarly, anatomical variations in cadavers pose educational dilemmas to students in gross anatomy dissection because of the inadequate coverage of anatomical variants in currently available resources, including textbooks. Students experience challenges in their learning experience, dissection process, and translation of clinically relevant information when presented with an anatomical variation. The authors report the rare finding of a bilateral sternalis muscle variant and asymmetrically bilateral extensor carpi radialis intermedius muscles in a single anatomical donor during dissection and the dilemma of students to find out what they were.

14.
J Phys Chem Lett ; 14(1): 132-138, 2023 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-36576489

RESUMO

The limitation of suitable anomalous valley Hall effect (AVHE) materials has seriously hindered the booming development and the widespread application of valleytronics. Here, through the first-principles calculations, we propose a MXene monolayer Y3N2O2 with spontaneous valley polarization (VP) of 21.3 meV, which induces intrinsic AVHE. The VP can be modulated linearly, which provides a route of effective control of the valley signals. Importantly, VP can be enhanced by adjusting up the spin-orbit coupling (SOC) based on a SOC Hamiltonian model and the first-principles calculations. From this physics underlying, we substitute the Y atom with the La atom and further propose the monolayer La3N2O2, in which the heavy atom La will provide stronger SOC than Y atom. The spontaneous VP in La3N2O2 is enhanced to 100.4 meV, so AVHE can be easily achieved. Our work not only provides compelling candidates for AVHE materials but also offers a novel mindset for finding suitable valleytronic devices.

15.
Eur Rev Med Pharmacol Sci ; 16(12): 1701-6, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23161043

RESUMO

INTRODUCTION: Asthma is one of the most common chronic diseases in children. It is attributable to complicated coactions between various genetic factors and environmental allergens. AIM: We attempt to unfold the mechanism of asthmatic disorder and research the molecular mechanism of Seretide on asthmatic disease. MATERIALS AND METHODS: Using the GSE31773 microarray datasets downloaded from Gene Expression Omnibus database, we first screened the differentially expressed genes between healthy control and asthmatic samples cells based on classical t-test and false discovery rate < 0.05 as significant threshold. The underlying molecular mechanisms were investigated by Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis. In addition, the crosstalk network of pathways was also constructed. RESULTS: A total of 2011 differentially expressed genes were obtained by comparing asthmatic sample treated with Seretide and healthy controls. A total of 403 differentially expressed genes were collected between asthma samples untreated by Seretide and healthy sample controls. The enriched pathway of differentially expressed genes included signal transduction disorder (such as TGF-beta signaling pathway) and metabolism disorder (such as Phenylalanine metabolism). There were 27 pathway crosstalk pairs among 13 pathways. CONCLUSIONS: Our findings will help to clarify the molecular mechanism of Seretide and offer advices for asthma pathogenesis, Seretide therapy and follow-up treatment.


Assuntos
Albuterol/análogos & derivados , Androstadienos/farmacologia , Antiasmáticos/farmacologia , Asma/genética , Bases de Dados Genéticas/estatística & dados numéricos , Expressão Gênica/efeitos dos fármacos , Terapia de Alvo Molecular/métodos , Transdução de Sinais/genética , Albuterol/farmacologia , Albuterol/uso terapêutico , Androstadienos/uso terapêutico , Antiasmáticos/uso terapêutico , Asma/tratamento farmacológico , Estudos de Casos e Controles , Combinação de Medicamentos , Combinação Fluticasona-Salmeterol , Perfilação da Expressão Gênica/métodos , Perfilação da Expressão Gênica/estatística & dados numéricos , Humanos , Modelos Genéticos , Terapia de Alvo Molecular/estatística & dados numéricos , Transdução de Sinais/efeitos dos fármacos
16.
Genetika ; 48(1): 89-96, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22567858

RESUMO

The Sox (SRY-related high-mobility-group box) family of genes shares a conserved HMG box and is involved in a diverse range of developmental processes and sex determination in vertebrates. Twenty Sox genes are present in the genomes of humans and mice, but far less is known about the Sox gene family in reptiles. Using two pairs of highly degenerate primers designed from a multiple alignment of Sox amino acid sequences in several species, different positive clones were obtained from male and female Eremias multiocellata, a viviparous lizard which is subject to TSD (temperature-dependent sex determination). These clones were sequenced and identified. They are members of the SoxB (Sox2, Sox14), SoxC (Sox11, Sox12) and SoxE (Sox9a, Sox9b, Sox10) groups. No sex-specific differences were observed. Based on the amino acid sequence similarities, the phylogenetic analysis was carried out and these genes clustered with their orthologues. In addition, we found the gene duplication in E. multiocellata, it may be a mechanism to produce new functional genes.


Assuntos
Lagartos/genética , Fatores de Transcrição SOXB1/genética , Fatores de Transcrição SOXC/genética , Fatores de Transcrição SOXE/genética , Sequência de Aminoácidos , Animais , Sequência de Bases , Feminino , Domínios HMG-Box/genética , Humanos , Masculino , Camundongos , Dados de Sequência Molecular , Filogenia , Fatores de Transcrição SOXB1/isolamento & purificação , Fatores de Transcrição SOXC/isolamento & purificação , Fatores de Transcrição SOXE/isolamento & purificação , Análise de Sequência de DNA , Homologia de Sequência de Aminoácidos , Processos de Determinação Sexual
17.
Zhonghua Wei Chang Wai Ke Za Zhi ; 24(7): 604-610, 2021 Jul 25.
Artigo em Chinês | MEDLINE | ID: mdl-34289545

RESUMO

Trocar placement and camera-dissection in the midline is the most commonly applied method for total extraperitoneal inguinal hernia repair (TEP), for which the theory of membrane anatomy has guiding significance. We hereby applies the theories and concepts, such as "fascia lining", "multi-layer", "inter-fascial planes", "combined inter-fascial plane" and "plane transition", to elucidate the key steps of TEP, for instance, space creation, hernia sac dissection, mesh flattening. Camera-dissection is performed along the posterior sheath of the rectus abdominis. Firstly, the camera enters retro-rectus space locating between the rectus abdominis and the transversalis fascia (TF). There are inferior epigastric vessels and their branches in the retro-rectus space, thus over-dissection should be avoided. Secondly, the camera goes downward through the TF into the pre-peritoneal space. The pre-peritoneal space is divided into the parietal plane and visceral plane by pre-peritoneal fascia (PPF). Both bladder and spermatic cord components locate on the visceral plane. Dissection of the median area should be implemented on the parietal plane, namely "surgical space", to protect the bladder. The parietal plane is the "holy plane" of TEP. Dissection of the indirect hernia area should be implemented on the visceral plane, namely "anatomical space", to protect the spermatic cord components. The reduction of direct hernia could be understood as the easy separation of TF and PPF. The reduction of indirect hernia is relatively difficult separation of peritoneum and spermatic cord components. During the transition of parietal and visceral planes, PPF (especially the pre-peritoneal loop) should be dissected for complete parietalization, in order to flatten the mesh.


Assuntos
Parede Abdominal , Hérnia Inguinal , Laparoscopia , Hérnia Inguinal/cirurgia , Herniorrafia , Humanos , Masculino , Peritônio/cirurgia , Telas Cirúrgicas
18.
Zhonghua Liu Xing Bing Xue Za Zhi ; 41(8): 1272-1279, 2020 Aug 10.
Artigo em Chinês | MEDLINE | ID: mdl-32867435

RESUMO

Objective: To quantitatively evaluate the relationship between sleep duration and metabolic syndrome in adults in order to set up programs on prevention and treatment of metabolic syndrome in this population. Methods: Relevant studies were identified by systematically searching databases before October 2019. All statistical analyses were under the use of Stata 11.0. Results: A total of 656 319 participants including 150 638 cases with metabolic syndrome were involved in thes 38 articles. A U-shaped relationship between sleep duration and metabolic syndrome was noticed. For short and long sleep duration, the OR=1.11 (95%CI: 1.07-1.16) and 1.10 (95%CI: 1.03-1.18), respectively. Subgroup analyses on cross-sectional studies revealed that factors as men, aged under 60 years, being Asians or Caucasians would increase the risk of metabolic syndrome by 6%, 14%, 9%, and 24%, respectively for those with short sleep duration. Factors as aged 60 years and above, being black and with long sleep duration, would increase the risks of metabolic syndrome by 13% and 19%, respectively in women. In subgroup analyses on cohort studies, positive correlation between short sleep duration and metabolic syndrome was observed in both Asian (RR=1.10, 95%CI: 1.07-1.13) and in Caucasians (RR=1.56, 95%CI: 1.08-2.26) populations. Conclusions: Results of this study revealed an association between metabolic syndrome and the duration of sleep. We understand that sleep is a behavior that can be changed step by step, through adequate intervention programs, to reduce the risk of metabolic syndrome which has become an important public health issue.


Assuntos
Síndrome Metabólica/epidemiologia , Sono , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Medição de Risco , Fatores de Tempo
19.
Artigo em Chinês | MEDLINE | ID: mdl-29986568

RESUMO

Objective:To investigate the difference of therapeutic effect of tinnitus patients with different types of hearing curve.Method:Patients with the inclusion and exclusion criteria for the treatment were studied retrospectively.Use the SPSS 20.0 Chinese version of the software to collect data and analysis.The difference was statistically significant when P<0.05.Result:A total of 164 patients were collected, and the most of the hearing curve types was high frequency hearing loss; according to the TEQ scoring and grading method, most tinnitus patients were in the middle severity; The chi-square test showed that there was no significant difference among the patients with different hearing curve types when the first visit,the severity among the groups was evenly distributed. After treatment,there was no significant difference in the effect of last visit and the follow-up between the patients with different hearing curve types.Conclusion:Unlike the sudden deafness, there was no statistically significant difference in the prognosis of tinnitus patients with different types of hearing curve. We can not choose the treatment program or even predict the curative effect according to the hearing curve type.


Assuntos
Perda Auditiva Súbita/etiologia , Zumbido/complicações , Testes Auditivos , Humanos , Prognóstico , Estudos Retrospectivos
20.
Eur Surg Res ; 39(4): 229-38, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17446709

RESUMO

BACKGROUND/AIMS: Vascular endothelial growth factor C (VEGF-C) and vascular endothelial growth factor D (VEGF-D) are potent lymphangiogenic and angiogenetic mediators in many kinds of tumors. However, the exact impacts of VEGF-C and VEGF-D on the prognosis of colorectal cancer (CRC) remain elusive. The aims of this study were to demonstrate the expression of VEGF-C and VEGF-D and to correlate their expression levels with clinicopathological factors and long-term survival in patients with CRC. PATIENTS AND METHODS: Between January 1996 and January 1998, 69 patients with pathologically confirmed CRC who received routine follow-up at the Ruijin Hospital were included in this study. VEGF-C and VEGF-D protein expression and microvessel density of 69 surgical specimens were assessed by immunohistochemistry, with 20 samples of normal colorectal tissues as controls. All patients were followed up for 108 months or until death. The Immunohistochemical stains were quantified and analyzed by means of a Zeiss Axioplan 2 imaging analysis system. RESULTS: The protein expression of VEGF-C and VEGF-D in tumor tissues was much higher than that in normal colorectal tissues (p < 0.01). The VEGF-C expression significantly correlated with lymph node metastasis (p = 0.011) and clinical stages of CRC (p < 0.01). The VEGF-D expression correlated with patient ages (p = 0.013), depth of tumor invasion (p = 0.013), and lymph node metastasis (p = 0.028). The expression of VEGF-C and VEGF-D was significantly correlated with the microvessel density. Both overall survival and disease-free survival at 108 months were significantly lower in the CRC patients with a high VEGF-C and/or a high VEGF-D expression, and the patients with a high expression of both VEGF-C and VEGF-D had the shortest overall survival and disease-free survival when compared with other patients. CONCLUSION: The VEGF-C or VEGF-D expression was significantly correlated with lymph node metastasis and long-term prognosis and could be applied as prognostic markers in CRC.


Assuntos
Adenocarcinoma/patologia , Neoplasias Colorretais/patologia , Imuno-Histoquímica/métodos , Fator C de Crescimento do Endotélio Vascular/metabolismo , Fator D de Crescimento do Endotélio Vascular/metabolismo , Adenocarcinoma/irrigação sanguínea , Adenocarcinoma/metabolismo , Adenocarcinoma/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/metabolismo , Neoplasias Colorretais/irrigação sanguínea , Neoplasias Colorretais/metabolismo , Neoplasias Colorretais/mortalidade , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Metástase Linfática , Masculino , Microcirculação , Microscopia/instrumentação , Microscopia/métodos , Pessoa de Meia-Idade , Neovascularização Patológica/metabolismo , Neovascularização Patológica/mortalidade , Neovascularização Patológica/patologia , Prognóstico , Análise de Sobrevida
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