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Characteristics of drugs safety signals that predict safety related product information update
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Widya N. Insani Alexandra C. Pacurariu Aukje K. Mantel‐Teeuwisse Liana Gross‐Martirosyan 《Pharmacoepidemiology and drug safety》2018,27(7):789-796
Purpose
Investigation of drug safety signals is one of the major tasks in pharmacovigilance. Among many potential signals identified, only a few reflect adverse drug reactions requiring regulatory actions, such as product information (PI) update. Limited information is available regarding the signal characteristics that might predict PI update following signal evaluation. The objective of this study was to identify signal characteristics associated with PI updates following signal evaluation by the European Medicines Agency Pharmacovigilance Risk Assessment Committee during 2012 to 2016.Methods
A comparative study was performed based on data from 172 safety signals. Characteristics of signals were extracted from the European Pharmacovigilance Issues Tracking Tool database. Multivariable logistic regression analysis was used to assess the relationship between signal characteristics and the decision to update the PI.Results
Multivariable logistic regression analysis showed that the presence of evidence in multiple types of data sources (adjusted odds ratio [OR] 7.8 95% CI [1.5, 40.1]); mechanistic plausibility of the drug‐event association (adjusted OR 3.9 95% CI [1.9, 8.0]); seriousness of the event (adjusted OR 4.2 95% CI [1.3, 13.9]); and age of drugs ≤5 years (adjusted OR 3.9 95% CI [1.2, 12.7]) were associated with the decision to change the PI (P < 0.05).Conclusions
This study identified 4 characteristics of drug safety signals that have shown to be associated with PI changes as outcome of signal evaluation. These characteristics may be used as criteria for selection and prioritization of potential signals that are more likely to necessitate product information updates. 相似文献33.
Clinicopathological Features and Prognosis of Indonesian Patients with Gliomas with IDH Mutation: Insights into Its Significance in a Southeast Asian Population
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Rusdy Ghazali MaluekaEry Kus DwianingsihHalwan Fuad BayuanggaAndre Stefanus PanggabeanIbnu Widya ArgoAditya Dwi DonurizkiSabillal ShalehAdiguno Suryo WicaksonoKusumo DananjoyoAhmad AsmediRachmat Andi Hartanto 《Asian Pacific journal of cancer prevention》2020,21(8):2287-2295
Background: Gliomas remain one of the most common primary brain tumors. Mutations in the isocitrate dehydrogenase (IDH) gene are associated with a distinct set of clinicopathological profiles. However, the distribution and significance of these mutations have never been studied in the Indonesian population. This study aimed to elucidate the association between IDH mutations and clinicopathological as well as prognostic profiles of Indonesian patients with gliomas. Methods: In total, 106 patients with gliomas were recruited from a tertiary academic medical center in Yogyakarta, Indonesia. Formalin-fixed paraffin-embedded and fresh tissue specimens were obtained and sectioned for hematoxylin-eosin staining and immunohistochemical examinations. Genomic DNA was isolated and analyzed for the presence of IDH mutations using standard polymerase chain reaction and nucleotide sequencing methods. Clinicopathological data were collected from medical records. Results: Although no IDH2 mutation was identified, IDH1 mutations were found in 23 (21.7%) of the patients. Patients with IDH1 mutations tended to have a history of smoking and a shorter interval between onset of symptoms and initial surgical interventions. Frontal lobe involvement, oligodendroglial histology, lower Ki67 expression, WHO grades II and III gliomas, and methylated O6-methylguanine-DNA methyltransferase (MGMT) promoters were significantly associated with the presence of IDH1 mutations. Compared with patients with IDH1-wild-type, patients with IDH1 mutation were observed to have a longer overall survival. Conclusions: IDH1 mutations are associated with certain clinicopathological and prognostic profiles in Indonesian patients with gliomas. This finding demonstrates the importance of identifying IDH mutations as part of the management of patients with glioma in Indonesia. 相似文献
34.
Anis I. Anwar Siswanto Wahab Widya Widita Airin R. Nurdin Suci Budhiani Arifin Seweng 《Dermatologic therapy》2019,32(6)
To compare the effectiveness of tranexamic acid (TA) combination serum with hydroquinone, the gold standard in whitening agents for healthy populations. This was a three‐arm randomized controlled trial. The subjects were divided into three groups: the first group received 3% TA combination serum (3% TA, 4% galactomyces ferment filtrate, 2% niacinamide, and 4% alpha arbutin), the second group received 2% TA combination serum, and the third group received 4% hydroquinone. One milliliter of each serum was applied on three holes: Hole A, which was located 4 cm from the left cubital fossa, Hole B, which was located 4 cm from the first hole, and Hole C, which was located 4 cm from the right cubital fossa. The skin brightness and pigmentation intensity were evaluated each week for 4 weeks using a chromameter. A total of 44 subjects were recruited for this study. All groups showed a significant improvement in skin brightness and pigmentation intensity after 4 weeks (p < .001). There were no differences between the treatment groups and hydroquinone (p > .05). TA serum (2 and 3%) combined with 4% galactomyces ferment filtrate, niacinamide, and alpha arbutin is an effective depigmenting agent. 相似文献
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Ganglion cells apoptosis in diabetic rats as early prediction of glaucoma: a study of Brn3b gene expression and association with change of quantity of NO, caspase-3, NF-κB, and TNF-α
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Irwan Tjandr Purnomo Soeharso Widya Artini Nurjati Chairani Siregar Andi Arus Victor 《国际眼科》2020,13(12):1872-1879
AIM: To find a new concept to show whether or not apoptosis of retinal ganglion cells (RGCs) can be determined in the histology of acute hyperglycemia in the role of expressed Brn3b gene related to nitric oxide (NO), caspase-3, nuclear factor kappa-B (NF-κB), and tumor necrosis factor-α (TNF-α) as an early predictor of primary open angle glaucoma (POAG) eyes and their associations.
METHODS: Experimental in vivo study was carried out using adult male, white Sprague-Dawley rats aged ≥2mo, weighing 150-200 g. The animals were divided into two groups, one group receiving intraperitoneal injection of streptozotociz 50 mg/kg in 0.01 mol/L citric buffer and pH 4.5 and a comparison made with the control group. Retinal tissue was divided into two parts (both experimental and control groups respectively): a) right retina for immunohistochemistry (IHC; caspase-3 and TNF-α); b) left retina was divided into two parts for the purpose of real-time polymerase chain reaction (PCR) test (RNA extraction for Brn3b gene expression analysis) and ELISA test (NO and NF-κB).
RESULTS: The experimental group showed a decrease in Brn3b gene expression compared to the control group (1.3-fold lower in 2nd month; 1.1-fold lower in 4th month and 2.5-fold lower in 6th month). However, there was a decrease of NO, caspase-3, and an increase of NF-κB and TNF-α quantity.
CONCLUSION: The expression of mRNA Brn3b gene is inversely proportional to apoptosis in RGCs. The quantity of NO, caspase-3, NF-κB and TNF-α is influential in expression of Brn3b in RGCs caused by hyperglycemia in diabetic rats. 相似文献
36.
Fabian C. Franke Benjamin O. Slusarenko Thomas Engleitner Widya Johannes Melanie Laschinger Roland Rad Ulrich Nitsche Klaus-Peter Janssen 《International journal of cancer. Journal international du cancer》2020,147(6):1715-1731
Epithelial–mesenchymal transition (EMT) is a cell plasticity process required for metastasis and chemoresistance of carcinoma cells. We report a crucial role of the signal adaptor proteins CRK and CRKL in promoting EMT and tumor aggressiveness, as well as resistance against chemotherapy in colorectal and pancreatic carcinoma. Genetic loss of either CRKL or CRK partially counteracted EMT in three independent cancer cell lines. Strikingly, complete loss of the CRK family shifted cells strongly toward the epithelial phenotype. Cells exhibited greatly increased E-cadherin and grew as large, densely packed clusters, completely lacked invasiveness and the ability to undergo EMT induced by cytokines or genetic activation of SRC. Furthermore, CRK family-deficiency significantly reduced cell survival, proliferation and chemoresistance, as well as ERK1/2 phosphorylation and c-MYC protein levels. In accordance, MYC-target gene expression was identified as novel hallmark process positively regulated by CRK family proteins. Mechanistically, CRK proteins were identified as pivotal amplifiers of SRC/FAK signaling at focal adhesions, mediated through a novel positive feedback loop depending on RAP1. Expression of the CRK family and the EMT regulator ZEB1 was significantly correlated in samples from colorectal cancer patients, especially in invasive regions. Further, high expression of CRK family genes was significantly associated with reduced survival in locally advanced colorectal cancer, as well as in pan-cancer datasets from the TCGA project. Thus, CRK family adaptor proteins are promising therapeutic targets to counteract EMT, chemoresistance, metastasis formation and minimal residual disease. As proof of concept, CRK family-mediated oncogenic signaling was successfully inhibited by a peptide-based inhibitor. 相似文献
37.
Widya Wasityastuti Yoga Pamungkas Susani Yayi Suryo Prabandari Gandes Retno Rahayu 《Educación Médica》2018,19(1):23-29
Background
Professionalism is a skills area that should be mastered by medical graduates. The period of formal education is essential for the formation of professionalism. The involvement of internal factors, such as academic motivation, and external factors, such as the learning environment, might play a role in the development and learning of professional identity.Aim
To determine the profiles of academic motivation and its relationship between student professional identity during their degree courses.Methods
This cross-sectional study included 531 medical students in the early, mid, and late phases of their courses in the Gadjah Mada University Faculty of Medicine. The Academic Motivation Scale of Vallerand was used to assess academic motivation, and the Professional Identity Scale of Adams to assess professional identity.Results
The mean scores of academic motivation domains including intrinsic, extrinsic, and lack of motivation among medical students in the Gadjah Mada University Faculty of Medicine were 5.02 ± 0.87, 4.86 ± 0.88, and 1.83 ± 0.96 (mean ± standard deviation), respectively. No significant differences were found between the intrinsic and extrinsic motivation scores among students in the three phases of education, while the scores on lack of motivation among students in earlier phases were lower than students in the mid and late phases (P < 0.000). The mean total score of professional identity was high and increased with the duration of training. Correlations were found in academic motivation, including internal, external, and lack of motivation, and professional identity (r = 0.257–0.607, P < 0.01). Intrinsic and extrinsic motivation correlated positively with professional identity, while lack of motivation negatively correlated with professional identity. 相似文献38.
I Wayan Suardana Komang Januartha Putra Pinatih Dyah Ayu Widiasih Wayan Tunas Artama Widya Asmara Budi Setiadi Daryono 《Journal of microbiology, immunology, and infection》2018,51(1):132-140
Background/Purpose
Shiga-like toxin (Stx) is an important factor in the pathogenesis of Escherichia coli O157:H7 infection and is responsible for some severe complications. Stx2 is usually associated with hemolytic uremic syndrome in humans. Its expression is regulated by elements located upstream of the stx2 gene, including stx2-promoter sequence, ribosome binding site, and the antiterminator q gene. The present study aimed to find the correlation between regulatory elements and the expression level of Stx2 in two local isolates of E. coli O157:H7.Methods
Two local E. coli O157:H7 strains SM-25(1) and KL-48(2), originating from human and cattle feces, respectively, and an E. coli reference strain, ATCC 43894, were investigated. The complete stx2 gene covering the sequences of promoter, ribosome binding site, and open reading frame and q gene of each strain was analyzed. The magnitude of Stx2 production was detected with a reverse passive latex agglutination method and Stx mediated cellular damage was determined with the Vero cell assay.Results
A comparison of the complete stx2 gene contained stx2-promoter, ribosome binding site, and q genes of two local strains KL-48(2) and SM25(1), and the E. coli ATCC 43894 showed that the amino acid sequences were identical. Both local isolates were Stx negative in the reverse passive latex agglutination test and nontoxic in the Vero cell assay.Conclusion
The expression level of Shiga-like toxin of the two local isolates of E. coli O157:H7 did not only depend on the regulatory elements of the stx2 gene. 相似文献39.
van Hout Max J. Dekkers Ilona A. Lin Ling Westenberg Jos J. Schalij Martin J. Jukema J. Wouter Widya Ralph L. Boone Sebastiaan C. de Mutsert Renée Rosendaal Frits R. Scholte Arthur J. Lamb Hildo J. 《The international journal of cardiovascular imaging》2022,38(1):183-193
The International Journal of Cardiovascular Imaging - Pulse wave velocity (PWV) assessed by magnetic resonance imaging (MRI) is a prognostic marker for cardiovascular events. Prediction modelling... 相似文献
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Ralph L. Widya Rutger W. van der Meer Johannes W.A. Smit Luuk J. Rijzewijk Michaela Diamant Jeroen J. Bax Albert de Roos Hildo J. Lamb 《Diabetes care》2013,36(2):457-462