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1.
Clin Nephrol ; 2024 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-39037087

RESUMO

We present a case of a 19-year-old who developed nephrotic syndrome with preserved renal function. Renal biopsy confirmed focal segmental glomerular sclerosis (FSGS). No remission was achieved despite 2 years of treatment with glucocorticoids, mycophenolate mofetil, tacrolimus, and cyclophosphamide. After transfer to our center, we performed re-examination of renal pathology by electron microscope (EM), chromosomal karyotype, and gene analysis. EM revealed uneven thickness of the glomerular basement membrane without obvious stratification or fracture. Gene analysis revealed a splice mutation (1447+1G>A) in IVS9 and chromosomal karyotype was (46, XY), confirming the diagnosis of Frasier syndrome, which was consistent with primary amenorrhea overlooked by local nephrologists. Cyclosporin A was prescribed to reduce the proteinuria, but serum creatinine increased to 152 µmol/L.

2.
Artigo em Inglês | MEDLINE | ID: mdl-38758375

RESUMO

PURPOSE: To investigate the performance of 10 MHz ultrasonography in detecting posterior lens capsule defects before traumatic cataract surgery. METHODS: This retrospective analysis includes patients with traumatic cataracts who underwent cataract surgery. Preoperative 10 MHz ultrasonography was performed to evaluate whether the posterior lens capsule was defective or intact, and the results were compared to the intraoperative findings. Sensitivity, specificity, positive predictive value, negative predictive value, accuracy, and kappa were calculated. RESULTS: The study included 140 eyes of 140 patients. There were 68 eyes with closed-globe injuries and 72 eyes with open-globe injuries. The sensitivity, specificity, positive predictive value, negative predictive value, accuracy, and kappa of 10 MHz ultrasonography was 86.76%, 90.28%, 89.39%, 87.84%, 88.57% and 0.771, respectively. The accuracy was 86.11% and 91.18% in open-globe and closed-globe injury groups, respectively. CONCLUSION: The accuracy of 10 MHz ultrasonography in evaluating the posterior lens capsule in traumatic cataracts is high. Preoperative 10 MHz ultrasonography would help to make an appropriate surgical plan.

3.
BMC Nurs ; 23(1): 356, 2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38807107

RESUMO

BACKGROUND: The positive impacts of work engagement among specialist nurses on retention, organizational commitment, and quality of care are well-documented. However, there is a lack of research on the specific differences in work engagement among specialist nurses. Therefore, the purpose of this study is to assess the level of work engagement among specialist nurses in China and identify its influencing factors. METHODS: A descriptive cross-sectional study was conducted in China from April to July, 2023, with 724 nurses selected from 22 hospitals through convenience sampling involved. The survey was conducted by using self-administered general information questionnaires and work engagement scales. Questionnaire Star was employed as the online data collection tool. The collected data was analyzed by using descriptive statistics and stepwise regression analysis to draw meaningful conclusions from the study. RESULTS: Among specialist nurses in Xiamen, China, who had a response rate of 97.10%, an average work engagement score is 140.35 (SD=18.17), with the highest score for the work attitude at 4.65 (SD=0.52) and the lowest score for the work recognition at 4.09 (SD=0.85). It was shown through regression analysis that factors such as career satisfaction, involvement in challenging case discussions, marital status, gender, presence of promotion advantage and title accounted for 14.5% of the total variance in the model and were significant explanatory variables that could predict work engagement. CONCLUSION: It is shown that specialist nurses in Xiamen, China have a high level of work engagement. It is imperative for nursing managers to prioritize the work engagement of specialist nurses, provide the specialist nurses with ample development opportunities and room for growth, and effectively promote the overall development of specialist nurses by improving work engagement in various aspects.

4.
J Psychosoc Oncol ; : 1-16, 2023 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-37609842

RESUMO

PURPOSE: This study aimed to investigate the status of demoralization syndrome among cancer patients and explore the key factors influencing demoralization syndrome. METHOD: Cross-sectional study design of cancer patients in Xiamen, China. Patients completed the Mandarin version of the Perceived Social Support Scale, Patient-Reported Outcome Measures, The Anderson Symptom Inventory, and the Demoralization Scale. FINDINGS: 187/199 (94%) of patients completed questionnaires. This study found that almost half of the cancer patients in Xiamen, China experience moderate to high levels of demoralization syndrome. Furthermore, the findings indicated that the family residence (Large Urban: b = 2.73, p = 0.02), average monthly income (b=-3.05, p = 0.03), source of income, religiousness (b = 1.37, p = 0.04) and financial toxicity (b = 3.3, p < 0.001), and social support (b = 1.02; p < 0.001) are the influencing factors of cancer patients' demoralization syndrome. CONCLUSION: These findings emphasize the importance of addressing psychological distress and providing adequate social and financial support for cancer patients to maintain their morale and overall well-being.

5.
Int J Mol Sci ; 24(6)2023 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-36982812

RESUMO

Obesity is associated with excessive fat accumulation in adipose tissue and other organs, such as skeletal muscle, whereas aerobic exercise (AE) plays an important role in managing obesity through profound protein regulation. Our study aimed to investigate the impact of AE on proteomic changes in both the skeletal muscle and the epididymal fat pad (EFP) of high-fat-diet-induced obese mice. Bioinformatic analyses were performed on differentially regulated proteins using gene ontology enrichment analysis and ingenuity pathway analysis. Eight weeks of AE significantly reduced body weight, increased the serum FNDC5 level, and improved the homeostatic model assessment of insulin resistance. A high-fat diet caused alterations in a subset of proteins involved in the sirtuin signaling pathway and the production of reactive oxygen species in both skeletal muscle and EFP, leading to insulin resistance, mitochondrial dysfunction, and inflammation. On the other hand, AE upregulated skeletal muscle proteins (NDUFB5, NDUFS2, NDUFS7, ETFD, FRDA, and MKNK1) that enhance mitochondrial function and insulin sensitivity. Additionally, the upregulation of LDHC and PRKACA and the downregulation of CTBP1 in EFP can promote the browning of white adipose tissue with the involvement of FNDC5/irisin in the canonical pathway. Our study provides insights into AE-induced molecular responses and may help further develop exercise-mimicking therapeutic targets.


Assuntos
Dieta Hiperlipídica , Resistência à Insulina , Camundongos , Animais , Dieta Hiperlipídica/efeitos adversos , Camundongos Obesos , Proteômica , Tecido Adiposo Branco/metabolismo , Tecido Adiposo/metabolismo , Obesidade/genética , Fatores de Transcrição/metabolismo , Fibronectinas/metabolismo , Músculo Esquelético/metabolismo , Proteínas Serina-Treonina Quinases/metabolismo , NADH Desidrogenase/metabolismo
6.
Appl Opt ; 61(9): F9-F14, 2022 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-35333221

RESUMO

Due to the high accuracy and fast response, measurement systems based on four-quadrant detectors (4QDs) are widely used. There is a non-linear relationship between the output signal offset (OSO) of the 4QD and the actual spot position, resulting in limited measurement accuracy. Existing methods improve detection accuracy by collecting large amounts of data and approximating the OSO curve. On one hand, they require much difficult-to-obtain real data; on the other hand, the accuracy of the fit using specific functions is limited. To address this issue, this paper proposes a neural-network-based method for improving the measurement accuracy of 4QDs. Compared to existing methods, the proposed method significantly improves measurement accuracy with a small amount of real data. To obtain sufficient data to train the neural network, we first propose a method for generating large amounts of high-precision simulation data. Then, specifically for the 4QD-based measurement system, we construct a backpropagation neural network. Finally, based on a large amount of simulation data and a small amount of real data, we design a new training strategy to train a high-precision measurement network. The experimental results show that the proposed method can significantly improve measurement accuracy with less real data and has extensive application value.


Assuntos
Redes Neurais de Computação , Simulação por Computador
7.
Anim Cogn ; 22(2): 163-168, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30603931

RESUMO

Number sense is a key cognitive function in animals. The biological functions of number discrimination have a wide range, including the selection of prey and social interaction. In a previous study, we have shown that cuttlefish are able to distinguish numerical differences among various integers, including 1 vs. 2, 2 vs. 3, 3 vs. 4, and 4 vs. 5. However, it is not known whether cuttlefish are able to discriminate various fractions, that is, various non-integer numbers. In addition, no study on invertebrates has examined fraction number sense. Using the active preying behavior of cuttlefish (Sepia pharaonis), we investigated the spontaneous preference for larger quantity by presenting two-alternative choice between 1 vs. 1.5, 1.5 vs. 2, 2 vs. 2.5, and 2.5 vs. 3. In this context, the quantity1.5 is composed of one large shrimp and one small shrimp, in which the size of the small shrimp is one-half of that of the large shrimp. The result shows that the cuttlefish chose larger quantity in the first three pairs, but they could not distinguish the pair 2.5 vs. 3. Despite that the absolute differences in these pairs are the same (0.5), the relative differences in these pairs decrease (0.5, 0.33, 0.25, and 0.2, respectively). This implies that the perceived difference in quantity is proportional to the initial quantity (Weber's law). Although the present study does not truly differentiate the number difference from the quantity difference, this result does raise the possibility that cuttlefish may be equipped with the primitive concept of fractions, and if so, the perceived just noticeable difference is similar for both integer and fraction number discrimination.


Assuntos
Cognição , Sepia , Animais
8.
BMC Nephrol ; 20(1): 106, 2019 03 28.
Artigo em Inglês | MEDLINE | ID: mdl-30922260

RESUMO

BACKGROUND: To establish a model of chronic renal fibrosis following acute kidney injury (AKI) in BALB/c mice and to observe the effect of AKI on podocyte injury and chronic fibrosis of the kidney. Additional aims included using the model to explore the role of podocyte injury in AKI and post-injury fibrosis. METHODS: Fifty BALB/C mice were randomly divided into control group (Ctr), sham group (sham), AKI 20 group (renal ischemia, 20 min reperfusion), AKI 30 group (renal ischemia, 30 min reperfusion) and AKI 40 group (renal ischemia, 40 min reperfusion). Mice serum and 24-h urine were collected on the 8th, 9th, 10th, 14th, and 28th days for urinary protein, serum creatinine (Scr) and blood urea nitrogen (BUN) analysis. HE staining, transmission electron microscopy (TEM), Masson staining, Q-PCR, Western Blot and immunohistochemistry were applied. RESULTS: Serum Scr and BUN levels across all AKI groups at the 9th day were significantly higher (P < 0.05) than controls, with higher reperfusion groups maintaining that increase up to 28 days (P < 0.05). Compared with Ctr group, the urinary protein of the AKI 40 group significantly rose on the 9th day (P < 0.05), normalizing immediately on the 10th day (P < 0.05). In contrast, the AKI 30 group rose significantly on the 14th day (P < 0.05) maintaining elevated levels for two weeks (P < 0.05). HE staining demonstrated ischemia-dependent renal tissue damage was aggravated in the mild to aggravated AKI groups. Mesangial proliferation, glomerulosclerosis, and tubulointerstitial pathology were also significantly increased in these groups (P < 0.05). Masson staining further showed that glomerular, renal tubular, and interstitial collagen were increased by ischemia in a time-dependent manner. Transmission EM additionally that podocytes of the mild to severe AKI groups displayed extensive fusion, exfoliation and GBM exposure. Synaptopodin, Nephrin, and CD2AP mRNA and protein expression demonstrated ischemic time-dependent decreases, while the TRPC6 was increased. There was a significant difference in the levels of Synaptopodin, Nephrin, CD2AP, and TRPC6 between the mild and severe AKI groups (P < 0.05). CONCLUSIONS: 1) During the AKI process mice podocyte injury, proteinuria and the subsequent progression into chronic renal fibrosis is observed.2) Podocyte injury may be one of the causes of ischemia-reperfusion acute kidney injury and post-injury fibrosis.


Assuntos
Injúria Renal Aguda/patologia , Rim/patologia , Podócitos/patologia , Traumatismo por Reperfusão/patologia , Injúria Renal Aguda/metabolismo , Animais , Fibrose/metabolismo , Fibrose/patologia , Rim/metabolismo , Camundongos , Camundongos Endogâmicos BALB C , Podócitos/metabolismo , Distribuição Aleatória , Traumatismo por Reperfusão/metabolismo
9.
Exp Dermatol ; 26(6): 524-526, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28423238

RESUMO

In addition to genetics and androgens, novel factors could play a role in androgenetic alopecia (AGA). This study aims to investigate the association between plasma leptin level with the risk and severity of AGA in men. Forty-eight subjects were enrolled including 29 AGA and 19 non-AGA subjects. The plasma leptin level was significantly higher in AGA subjects, compared to non-AGA subjects (4.45 vs 2.76 ng/mL, P<.05). A higher plasma leptin levels were positively correlated with the risk of developing AGA in multivariate logistic analysis (odds ratio=2.77, P<.05). Leptin from the circulation might impact the development of AGA.


Assuntos
Alopecia/sangue , Alopecia/diagnóstico , Folículo Piloso/fisiopatologia , Leptina/sangue , Adipócitos/citologia , Adulto , Alopecia/genética , Androgênios/metabolismo , Índice de Massa Corporal , Estudos de Casos e Controles , Voluntários Saudáveis , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Obesidade/metabolismo , Razão de Chances , Risco , Pele/metabolismo , Adulto Jovem
10.
J Am Acad Dermatol ; 70(2): 297-302.e1, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24184140

RESUMO

BACKGROUND: Obesity is a risk factor for multiple health problems, but its association with androgenetic alopecia (AGA) remains controversial. OBJECTIVE: We sought to determine the association between body mass index (BMI) and alopecia severity in men with AGA and early-onset AGA. METHODS: A cross-sectional study was conducted. The medical charts and photographs of men with a clinical diagnosis of AGA were reviewed. RESULTS: In all, 189 men were enrolled with a mean age of 30.8 years. In male-pattern AGA (n = 142), men with severe alopecia (grade V-VII) had higher BMI than those with mild to moderate alopecia (grade I-IV) (25.1 vs 22.8 kg/m(2), P = .01). After multivariate adjustments, the risk for severe alopecia was higher in the overweight or obese (BMI ≥24 kg/m(2)) subjects with male-pattern AGA (odds ratio 3.52, P < .01). In early-onset male-pattern AGA (n = 46), the risk for having severe alopecia was also higher in the overweight or obese subjects (odds ratio 4.97, P = .03). LIMITATIONS: Parameters used to evaluate obesity were limited because of the retrospective nature of the study. CONCLUSIONS: Higher BMI was significantly associated with greater severity of hair loss in men with male-pattern AGA, especially in those with early-onset AGA.


Assuntos
Alopecia/epidemiologia , Índice de Massa Corporal , Obesidade/epidemiologia , Adolescente , Adulto , Idade de Início , Alopecia/diagnóstico , Análise de Variância , Comorbidade , Estudos Transversais , Progressão da Doença , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Obesidade/diagnóstico , Prevalência , Índice de Gravidade de Doença , Taiwan/epidemiologia , Adulto Jovem
11.
Wei Sheng Wu Xue Bao ; 54(8): 905-12, 2014 Aug 04.
Artigo em Chinês | MEDLINE | ID: mdl-25345022

RESUMO

OBJECTIVE: To enhance enzymatic activity and thermostability of N-acylhomoserine lactonase (AiiA). METHODS: We performed site-directed mutagenesis based on AiiA homologous 3-D protein structure, and analyzed enzymatic activity and thermostability of both wild type and mutated AiiA. RESULTS: The wild type AiiA lost its N-acylhomoserine lactone (AHL) degrading activity after being incubated at 45 degrees C for 30 min or after being stored at 4 degrees C for 5 days. By comparison, the AHL-degrading activities of three types of mutated AiiA (N65K, T195R, and A206E) were enhanced, and their storage periods at 4 degrees C were extended to 7 days. In addition, the N65K mutant acquired higher temperature tolerance with remain of more than 45% of its enzymatic activity after being incubated at 45 degrees C and 5.0% enzymatic activity after being incubated at 55 degrees C as compared to the wild type. CONCLUSION: Molecular modulation by site-directed mutagenesis could significantly improve enzymatic activity and thermostability of AiiA.


Assuntos
Bacillus thuringiensis/enzimologia , Proteínas de Bactérias/química , Proteínas de Bactérias/metabolismo , Hidrolases de Éster Carboxílico/química , Hidrolases de Éster Carboxílico/metabolismo , Sequência de Aminoácidos , Bacillus thuringiensis/química , Bacillus thuringiensis/genética , Proteínas de Bactérias/genética , Proteínas de Bactérias/isolamento & purificação , Hidrolases de Éster Carboxílico/genética , Hidrolases de Éster Carboxílico/isolamento & purificação , Clonagem Molecular , Estabilidade Enzimática , Temperatura Alta , Cinética , Modelos Moleculares , Dados de Sequência Molecular , Mutagênese Sítio-Dirigida , Especificidade por Substrato
12.
Front Aging Neurosci ; 16: 1394807, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38872630

RESUMO

Objective: The observational association between cathepsin and Parkinson's disease (PD) has been partially explored in previous research. However, the causal relationship remains unclear. In this study, our objective is to investigate the causal link between cathepsin and PD using Mendelian randomization (MR) analysis and elucidate the underlying mechanisms governing their interaction. Methods: Utilizing bidirectional two-sample MR and multivariable MR, we systematically investigates the causal relationship between nine cathepsins and PD. The data pertaining to cathepsins were obtained from the Integrative Epidemiology Unit (IEU) Open GWAS Project, while data related to PD were sourced from versions R9 and R10 of the FinnGen database. The primary analytical method utilized was the inverse variance weighted (IVW), with MR analysis initially conducted using PD data from R9, complemented by a series of sensitivity analyses. Subsequently, replication analysis was performed on the R10 dataset, and meta-analysis were employed to merge the findings from both datasets. To explore potential mechanisms by which Cathepsins may impact PD, MR analyses were performed on significant Cathepsins with alpha-synuclein. MR analysis and colocalization analysis were conducted on expression quantitative trait loci (eQTL) data of gene related to alpha-synuclein with PD data. Result: Forward MR analyses revealed more cathepsin B (CTSB) associated with less PD risk (OR = 0.898, 95%CI: 0.834-0.966, p = 0.004), while more cathepsin H (CTSH) (OR = 1.076, 95%CI: 1.007-1.149, p = 0.029) and more cathepsin S (CTSS) (OR = 1.076, 95%CI: 1.007-1.150, p = 0.030) associated with increasing PD risk. Meta-analyses validated these associations. Multivariate MR Results were consistent with those before adjustment. No significant results were observed in bidirectional MR analysis. In the investigation of the underlying mechanism, our findings demonstrate that CTSB significantly reduces the levels of alpha-synuclein (OR = 0.909, 95%CI: 0.841-0.983, p = 0.017). Concurrently, a genetically determined positive correlation between alpha-synuclein and PD is illuminated by both eQTL MR and colocalization analysis. Conclusion: In conclusion, this MR study yields robust evidence suggesting an association between elevated levels of CTSB and reduced PD risk, mediated by the downregulation of alpha-synuclein levels. Conversely, higher levels of CTSH and CTSS are associated with an increased risk of PD. These findings offer novel insights into the pathophysiological mechanisms of PD and identify potential drug targets for disease prevention and treatment warranting further clinical investigations.

13.
Obes Res Clin Pract ; 18(1): 64-72, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38238145

RESUMO

OBJECTIVE: Global prevalence of obesity has continued to rise and poses public health concerns. Current anti-obesity medications are mainly focused on suppressing appetite. Thermogenic fat cells that increase energy expenditure may be a promising alternative target to combat obesity. Our study aims to investigate the effects of aerobic, resistance, and high-intensity interval training on thermogenic gene expression in white adipose tissue in high fat diet induced obese mice. METHODS: Fifty 6-week-old male C57BL/6 mice were initially divided into control group and high fat diet group for obesity induction. After 8 weeks of obesity induction, obese mice were subdivided into sedentary, aerobic exercise, resistance exercise, and high intensity interval training groups. Trained obese mice were submitted to 8 weeks of exercise. RESULTS: Our results showed that all three exercises significantly decreased body weight, and improved metabolic profiles including glucose tolerance, total cholesterol, and low-density lipoprotein cholesterol. Moreover, aerobic exercise training increases serum irisin levels and thermogenic gene expressions such as Prdm16, Cidea, and Pgc-1α in epididymal white adipose tissue of obese mice. CONCLUSION: Our findings suggest that when it comes to the adaption of thermogenic fat cells, the modality of exercise should be taken into consideration. Aerobic exercise may induce a modest increase in the expression levels of certain thermogenic genes in epididymal white adipose tissue.


Assuntos
Dieta Hiperlipídica , Treinamento Intervalado de Alta Intensidade , Masculino , Camundongos , Animais , Camundongos Endogâmicos C57BL , Dieta Hiperlipídica/efeitos adversos , Camundongos Obesos , Tecido Adiposo Branco , LDL-Colesterol , Obesidade , Expressão Gênica
14.
Heliyon ; 10(5): e26922, 2024 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-38463767

RESUMO

Motor imagery has been commonly studied as a means of motor rehabilitation but, the individual differences limit its practical application. Visually evoked motor imagery has been widely highlighted by researchers because of its vivid stimulus. However, this modality is still not applicable to all persons. In this study, we studied the different performances of the visually evoked motor imagery between subjects and tried to explore the personality manifestation which can result in this performance. We found that conscientiousness and openness have negative connections with the performance of visually evoked motor imagery. To compare with spontaneous motor imagery, the visually evoked motor imagery reflects less personality difference between subjects with good and bad performances on motor imagery. This indicate that visually stimulus may increase the pervasive application of motor imagery. This study may provide benefits to predict the rehabilitation effect and to rapidly select the suitable motor rehabilitation methods.

15.
Histol Histopathol ; 39(7): 903-919, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38108436

RESUMO

OBJECTIVES: Aberrant serotonin (5-hydroxytryptamine, 5-HT) metabolism and neurite outgrowth were associated with abdominal pain in irritable bowel syndrome (IBS). We previously demonstrated that 5-HT receptor subtype 7 (5-HT7) was involved in visceral hypersensitivity of IBS-like mouse models. The aim was to compare the analgesic effects of a novel 5-HT7 antagonist to reference standards in mouse models and investigate the mechanisms of 5-HT7-dependent neuroplasticity. METHODS: Two mouse models, including Giardia post-infection combined with water avoidance stress (GW) and post-resolution of trinitrobenzene sulfonic acid-induced colitis (PT) were used. Mice were orally administered CYY1005 (CYY, a novel 5-HT7 antagonist), alosetron (ALN, a 5-HT3 antagonist), and loperamide (LPM, an opioid receptor agonist) prior to measurement of visceromotor responses (VMR). Levels of nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and neurotrophin receptors (NTRs) were assessed. RESULTS: Peroral CYY was more potent than ALN or LPM in reducing VMR values in GW and PT mice. Increased mucosal 5-HT7-expressing nerve fibers were associated with elevated Gap43 levels in the mouse colon. We observed higher colonic Ntrk2 and Ngfr expression in GW mice, and increased Bdnf expression in PT mice compared with control mice. Human SH-SY5Y cells stimulated with mouse colonic supernatant or exogenous serotonin exhibited longer nerve fibers, which CYY dose-dependently inhibited. Serotonin increased Ntrk1 and Ngfr expression via 5-HT7 but not 5-HT3 or 5-HT4, while Ntrk2 upregulation was dependent on all three 5-HT receptor subtypes. CONCLUSIONS: Stronger analgesic effects by peroral CYY were observed compared with reference standards in two IBS-like mouse models. The 5-HT7-dependent NTR upregulation and neurite elongation may be involved in intestinal hypernociception.


Assuntos
Receptores de Serotonina , Animais , Receptores de Serotonina/metabolismo , Camundongos , Masculino , Modelos Animais de Doenças , Síndrome do Intestino Irritável/metabolismo , Antagonistas da Serotonina/farmacologia , Humanos , Colite/metabolismo , Colite/induzido quimicamente , Serotonina/metabolismo , Camundongos Endogâmicos C57BL
16.
Acta Obstet Gynecol Scand ; 92(5): 525-35, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23163480

RESUMO

OBJECTIVE: To compare the diagnostic characteristics of the evaluation of myometrial invasion (MI) retrospectively between preoperative magnetic resonance imaging (MRI) and intraoperative frozen sections. DESIGN: A retrospective study. SETTING: University hospital. SAMPLE: 201 women diagnosed with endometrial carcinoma. METHODS: All women underwent preoperative MRI and 111 of them also underwent intraoperative frozen section assessment. The final pathological evaluation was used as the definitive diagnosis. MAIN OUTCOME MEASURES: In women who underwent MRI and frozen sections (n = 111), the accuracies of detection of MI and of deep invasion (defined as ≥50% invasion) were compared. RESULTS: The accuracy, sensitivity, and specificity of MRI for detection of MI were 65.8, 58.8, and 88.5%, and those in frozen sections were 90.1, 90.6, and 88.5%, respectively. The accuracy and sensitivity of frozen sections were significantly higher (p < 0.001, p < 0.001), whereas the specificity of the two methods did not differ (p = 1.000). The accuracy, sensitivity, and specificity of MRI for detection of deep invasion were 83.8, 69.2, and 88.2%, and those of frozen sections were 93.7, 73.1, and 100.0%, respectively. The accuracy and specificity of frozen sections were significantly higher (p = 0.007 and p < 0.001, respectively), whereas sensitivity did not show a significant difference (p = 0.999). CONCLUSION: In assessment of MI, the accuracy of frozen sections was significantly higher than that of MRI. Since the diagnostic characteristics differ between two methods, additional intraoperative frozen sections are recommended for more accurate assessment of MI when MRI is negative for the presence of any MI or positive for the presence of deep invasion.


Assuntos
Neoplasias do Endométrio/diagnóstico , Secções Congeladas , Imageamento por Ressonância Magnética , Miométrio/patologia , Adulto , Neoplasias do Endométrio/patologia , Feminino , Humanos , Período Intraoperatório , Modelos Logísticos , Pessoa de Meia-Idade , Invasividade Neoplásica/diagnóstico , Período Pré-Operatório , Reprodutibilidade dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade
17.
Eur J Med Res ; 28(1): 135, 2023 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-36973754

RESUMO

BACKGROUND: The aim of this study was to explore the mechanism of complement C3a mediating podocyte injury during ischemia-reperfusion acute kidney injury (IR-AKI) and post-injury fibrosis. METHODS: Renal artery clamping was used to establish IR-AKI and post-injury fibrosis model. HE and Masson staining were performed to observe renal fibrosis. The protein abundance levels were measured along with inflammatory markers, renal complement C3. Podocytes were treated with C3a with or without Toll-like receptor 4(TLR4) inhibitor. The effects of TLR4 up-regulation by TLR4 plasmids were examined. RESULTS: C3-/- resulted in amelioration of renal dysfunction by reducing podocyte damage and renal fibrosis. Immunoblot with renal tissue homogenates from IR-AKI mice revealed that C3-/- decreased TLR4/Nuclear Factor-κB (NFκB)-P65. CONCLUSION: Our results indicate that modulating C3/TLR4/NFκB-P65 signaling pathway is a novel therapeutic target for the IR-AKI and post-injury fibrosis.


Assuntos
Injúria Renal Aguda , Podócitos , Traumatismo por Reperfusão , Camundongos , Animais , Podócitos/metabolismo , Podócitos/patologia , Complemento C3/genética , Complemento C3/metabolismo , Receptor 4 Toll-Like/genética , Receptor 4 Toll-Like/metabolismo , Receptor 4 Toll-Like/uso terapêutico , Rim/patologia , Injúria Renal Aguda/genética , Injúria Renal Aguda/metabolismo , Transdução de Sinais , NF-kappa B/genética , NF-kappa B/metabolismo , Traumatismo por Reperfusão/tratamento farmacológico , Isquemia/metabolismo , Isquemia/patologia , Reperfusão , Fibrose
18.
Front Immunol ; 13: 781273, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35250972

RESUMO

Complement C3 plays a prominent role in inflammatory processes, and its increase exacerbates ischemia reperfusion injury (IRI)-induced acute kidney injury (AKI). Infiltrated neutrophils can be stimulated to form neutrophil extracellular traps (NETs), leading to renal injury. However, the relationship between the increase of C3 and the release of NETs in AKI was not clear. Here we found that IRI in the mouse kidney leads to increased neutrophils infiltration and NET formation. Furthermore, neutrophils depletion by anti-Ly6G IgG (1A8) did not reduce C3 activation but reduced kidney injury and inflammation, indicating a link between neutrophils infiltration and renal tissue damage. Pretreatment with 1A8 suppressed ischemia-induced NET formation, proving that extracellular traps (ETs) in renal tissue were mainly derived from neutrophils. Renal ischemia injury also leads to increased expression of C3. Moreover, C3 KO mice (C3 KO) with IRI exhibited attenuated kidney damage and decreased neutrophils and NETs. In vitro, C3a primed neutrophils to form NETs, reflected by amorphous extracellular DNA structures that colocalized with CitH3 and MPO. These data reveal that C3 deficiency can ameliorate AKI by reducing the infiltration of neutrophils and the formation of NETs. Targeting C3 activation may be a new therapeutic strategy for alleviating the necroinflammation of NETs in AKI.


Assuntos
Injúria Renal Aguda , Complemento C3 , Armadilhas Extracelulares , Traumatismo por Reperfusão , Injúria Renal Aguda/etiologia , Injúria Renal Aguda/metabolismo , Animais , Complemento C3/genética , Complemento C3/metabolismo , Modelos Animais de Doenças , Armadilhas Extracelulares/genética , Armadilhas Extracelulares/metabolismo , Feminino , Isquemia/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Traumatismo por Reperfusão/metabolismo
19.
Sleep Med ; 93: 39-48, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35405419

RESUMO

BACKGROUND: Acupuncture has been widely practiced for primary insomnia (PI). However, the relative benefit and harm among acupuncture therapies remain uncertain. OBJECTIVES: To compare and evaluate the effect differences of multiple acupuncture therapies for patients with PI. METHODS: Systematic literature search for randomized controlled trials (RCTs). Pairs of reviewers independently conducted literature screening, data extraction, and risk of bias assessment. Meta-analysis was conducted using R and Stata software. The Grading of Recommendations Assessment, Development, and Evaluation system (GRADE) was used to assess certainty of evidence and interpret results. RESULTS: Fifty-seven RCTs with 4678 patients were included. Compared with usual treatment, multiple acupuncture therapies showed a better effect for Pittsburgh sleep quality index score. And acupoints catgut embedding (ACE) was proved to be the most effective with a moderate certainty of evidence; auricular acupressure or auricular acupuncture plus manual acupuncture (AP + MA), electroacupuncture plus acupoint application (EA + APA), and intradermal needle (IN) might be also the most effective with low certainty of evidence. ACE, ACE + MA, AP + MA, EA, EA + APA, HPN, MA and PBN + MA showed significantly improvement in effective rate when compared with usual treatment. Insufficient evidence reported on Epworth Sleepiness Scale, Athens Insomnia Scale, and recurrence rate. The most common slight adverse events mainly included hematoma, pain, headache, and bleeding. CONCLUSIONS: With moderate to low certainty of evidence, multiple acupuncture therapies showed impressive insomnia improvement, especially ACE, AP + MA, and EA + APA. Differences between therapies were small or insignificant and based-on low or very low certainty of evidence.


Assuntos
Acupressão , Terapia por Acupuntura , Distúrbios do Início e da Manutenção do Sono , Acupressão/métodos , Terapia por Acupuntura/métodos , Viés , Humanos , Metanálise em Rede , Ensaios Clínicos Controlados Aleatórios como Assunto , Distúrbios do Início e da Manutenção do Sono/etiologia , Distúrbios do Início e da Manutenção do Sono/terapia
20.
Guang Pu Xue Yu Guang Pu Fen Xi ; 31(1): 177-83, 2011 Jan.
Artigo em Chinês | MEDLINE | ID: mdl-21428083

RESUMO

Mean Shift algorithm is a robust approach toward feature space analysis and it has been used wildly for natural scene image and medical image segmentation. However, high computational complexity of the algorithm has constrained its application in remote sensing images with massive information. A fast image segmentation algorithm is presented by extending traditional mean shift method to wavelet domain. In order to evaluate the effectiveness of the proposed algorithm, multispectral remote sensing image and synthetic image are utilized. The results show that the proposed algorithm can improve the speed 5-7 times compared to the traditional MS method in the premise of segmentation quality assurance.


Assuntos
Algoritmos , Interpretação de Imagem Assistida por Computador/métodos , Telemetria/métodos , Reconhecimento Automatizado de Padrão/métodos
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