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Myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML) are hematologic malignancies that mostly affect the elderly and have a poor prognosis. Azacitidine (AZA) and decitabine (DAC) are the most widely used hypomethylating agents. However, few randomized controlled trials (RCTs) have compared AZA and DAC head to head in MDS or AML. This study intended to conduct a network meta-analysis to compare the 2 drugs to provide more guidance using evidence-based medicine.
A comprehensive search for RCTs was performed till July 31, 2020. The network meta-analysis was conducted using the Markov chain Monte Carlo method. The primary endpoints were overall survival (OS) and the incidence of adverse events, and the secondary endpoints were complete remission (CR) rate, overall remission rate (ORR), and AML-free survival. There were 6 RCTs with 1072 MDS patients, and 3 RCTs with 1256 AML patients.
In MDS, AZA showed better AML-free survival (hazard ratio= 0.62; 95% CI, 0.43-0.9), whereas DAC had the possibility of achieving better CR and ORR, and AZA had the possibility of obtaining better OS with lower toxicity. As for elderly AML patients, DAC had the possibility of achieving superior CR, ORR, and OS, while the toxicity was relatively higher. Furthermore, subgroup analysis for patients≥ 75 years old or of high risk in MDS suggested that AZA achieved better OS.
For MDS, especially patients with intermediate or high risk disease with advanced age and poor general condition, AZA may be a better choice, while DAC may be of more benefit in elderly AML patients.
For MDS, especially patients with intermediate or high risk disease with advanced age and poor general condition, AZA may be a better choice, while DAC may be of more benefit in elderly AML patients.
Despite many recent advances in the treatment of multiple myeloma (MM), infection remains a major cause of morbidity and mortality. Prior studies have shown mixed results using intravenous immunoglobulin (IVIG) to prevent infections in MM and were conducted prior to most modern MM therapies.
We retrospectively reviewed all patients with MM treated with IVIG at our institution from 2010 to 2017. The primary endpoint was the incidence rate ratio (IRR) of infectious events (IEs) per patient-year during IVIG versus observation.
A total of 68 patients were included; 151 IEs occurred during 918 months of IVIG treatment, whereas 446 IEs occurred during 2484 months of observation. Although the annual rate of IEs was substantially higher during periods of progressive disease (PD) compared with non-PD (4.9 vs. 1.8; P< .001), most IEs occurred during periods of non-PD (75% vs. 25% during PD). There was no overall difference in the annual rate of IEs per patient between IVIG and observation (1.97 vs. 2.16; IRR, 0.92; 95% confidence interval [CI], 0.76-1.10; P= .376). The subgroup of patients with hypogammaglobulinemia and whose myeloma was in a non-PD phase had a significant reduction in all-grade IEs (1.20 vs. 1.92; IRR, 0.63; 95% CI, 0.45-0.88; P= .009) and≥ grade 3 IEs (0.25 vs. 0.56; IRR, 0.45; 95% CI, 0.22-0.94; P= .041) with IVIG compared with observation.
Although treatment with IVIG did not show benefit in the overall population, there may be subgroups of patients that derive significant benefit. Additional observational studies are needed to confirm these findings and further refine patient selection.
Although treatment with IVIG did not show benefit in the overall population, there may be subgroups of patients that derive significant benefit. Additional observational studies are needed to confirm these findings and further refine patient selection.In this work, a colorimetric sensor array has been designed for the identification and discrimination of thiometon (TM) and phosalone (PS) as organophosphate pesticides and prothioconazole (PC) as a triazole pesticide. For this purpose, two different plasmonic nanoparticles including unmodified gold nanoparticles (AuNPs) and unmodified silver nanoparticles (AgNPs) were used as sensing elements. The principle of the proposed strategy relied on the aggregation AuNPs and AgNPs through the cross-reactive interaction between the target pesticides and plasmonic nanoparticles. Therefore, these aggregation-induced UV-Vis spectra changes were utilized to discriminate the target pesticides with the help of linear discriminant analysis (LDA). Besides, we have employed the bar plots and the heat maps as visual non-statistical methods to differentiate the pesticides in a wide range of concentrations (i.e., 20-5000 ng mL-1). Multivariate calibration plots from partial least squares (PLS)- regression indicated that the responses linearly depend on the pesticide concentrations in the range of 100-1000 ng mL-1 with the limit of detections (LOD) of 66.8, 68.3, and 41.4 ng mL-1, for TM, PS, and PC, respectively. Finally, the potential applicability of the proposed sensor array has been evaluated for the detection and identification of the pesticides in the mixtures, water samples, and cucumber fruit.Biologically active peptides released by proteins are important in regulating immunity. The purpose of this study was to isolate and purify an immunologically active peptide from Hericium erinaceus (H. erinaceus) and to explore its effect on cytokine secretion and differentiation of macrophages. An active peptide with an amino acid sequence, Lys-Ser-Pro-Leu-Tyr (KSPLY) was obtained from H. erinaceus protein by ultrafiltration combined with multistage chromatography separation and identification technology. Subsequently, it was confirmed that the synthetic peptide KSPLY had a good immunomodulatory activity at a concentration of 100 μmol/L and could promote the secretion of NO, IL-1β, IL-6 and TNF-α by macrophages. The effects of KSPLY on M1 macrophages and M2 macrophages were also studied. Results showed that KSPLY inhibited the secretion of NO and IL-6 by M1 macrophages and promoted the tendency of M2 macrophages to transform to M1 macrophages. Therefore, it can be concluded that KSPLY is an effective immunomodulatory peptide that may be beneficial in cancer treatment and human health improvement.Emergence of drug resistance and adverse effects often affect the efficacy of nucleoside analogues in the therapy of Herpes simplex type 1 (HSV-1) and type 2 (HSV-2) infections. Host-targeting antivirals could therefore be considered as an alternative or complementary strategy in the management of HSV infections. Selleckchem Azaindole 1 To contribute to this advancement, here we report on the ability of a new generation inhibitor of a key cellular enzyme of de novo pyrimidine biosynthesis, the dihydroorotate dehydrogenase (DHODH), to inhibit HSV-1 and HSV-2 in vitro replication, with a potency comparable to that of the reference drug acyclovir. Analysis of the HSV replication cycle in MEDS433-treated cells revealed that it prevented the accumulation of viral genomes and reduced late gene expression, thus suggesting an impairment at a stage prior to viral DNA replication consistent with the ability of MEDS433 to inhibit DHODH activity. In fact, the anti-HSV activity of MEDS433 was abrogated by the addition of exogenous uridine or of the product of DHODH, the orotate, thus confirming DHODH as the MEDS433 specific target in HSV-infected cells. A combination of MEDS433 with dipyridamole (DPY), an inhibitor of the pyrimidine salvage pathway, was then observed to be effective in inhibiting HSV replication even in the presence of exogenous uridine, thus mimicking in vivo conditions. Finally, when combined with acyclovir and DPY in checkerboard experiments, MEDS433 exhibited highly synergistic antiviral activity. Taken together, these findings suggest that MEDS433 is a promising candidate as either single agent or in combination regimens with existing direct-acting anti-HSV drugs to develop new strategies for treatment of HSV infections.Adrenocortical cancer (ACC) is a rare and aggressive type of endocrine tumor with high risk of recurrence and metastasis. The overall survival of patients diagnosed with ACC is low and treatment for metastatic stages remain limited to mitotane, which has low efficiency in advanced stages of the disease and is associated with high toxicity. Therefore, identification of new biological targets to improve ACC treatment is crucial. Blockade of the Wnt/beta-catenin pathway decreased adrenal steroidogenesis and increased apoptosis of NCI-H295 human ACC cells, in vitro and in a xenograft mouse model. Aurora kinases play important roles in cell division during the G1-M phase and their aberrant expression is correlated with a poor prognosis in different types of tumors. Hence, we hypothesized that inhibition of aurora kinases activity combined with the beta-catenin pathway blockade would improve the impairment of ACC cell growth in vitro. We studied the combinatorial effects of AMG 900, an aurora kinase inhibitor and PNU-74654, a beta-catenin pathway blocker, on proliferation, survival and tumor progression in multiple ACC cell lines NCI-H295, CU-ACC1 and CU-ACC2. Exposure of ACC cells to the combination of AMG 900 with PNU-74654 decreased cell proliferation and viability compared to either treatment alone. In addition, AMG 900 inhibited cell invasion and clonogenesis compared to PNU-74654, and the combination showed no greater effects. In contrast, PNU-74654 was more effective in decreasing cortisol secretion. These data suggest that inhibition of aurora kinases activity combined with blockade of the beta-catenin pathway may provide a combinatorial approach for targeting ACC tumors.CYP11A1, a member of the cytochrome P450 family, plays several key roles in the human body. It catalyzes the first and rate-limiting step in steroidogenesis, converting cholesterol to pregnenolone. Aside from the classical steroidogenic tissues such as the adrenals, gonads and placenta, CYP11A1 has also been found in the brain, gastrointestinal tract, immune systems, and finally the skin. CYP11A1 activity in the skin is regulated predominately by StAR protein and hence cholesterol levels in the mitochondria. However, UVB, UVC, CRH, ACTH, cAMP, and cytokines IL-1, IL-6 and TNFα can also regulate its expression and activity. Indeed, CYP11A1 plays several critical roles in the skin through its initiation of local steroidogenesis and specific metabolism of vitamin D, lumisterol, and 7-dehydrocholesterol. Products of these pathways regulate the protective barrier and skin immune functions in a context-dependent fashion through interactions with a number of receptors. Disturbances in CYP11A1 activity can lead to skin pathology.
This study characterizes the association of risk factors including race, ethnicity, and insurance status with presenting visual acuity (VA) and diabetic retinopathy (DR) severity in patients initiating treatment with anti-vascular endothelial growth factor (VEGF) therapy for diabetic macular edema (DME).
Retrospective, cross-sectional study.
The Academy Intelligent Research in Sight (IRIS) Registry database was queried for patients who initiated anti-VEGF injection treatment for DME between 2012 and 2020 (n= 203 707).
Multivariate regression analyses were conducted to understand how race, ethnicity, insurance status, and geographic location were associated with baseline features.
Visual acuity and DR severity.
Patients on Medicare and private insurance presented with higher baseline VA compared with patients on Medicaid (median of 2.31 and 4.17 greater Early Treatment Diabetic Retinopathy Scale [ETDRS] letters, respectively P < 0.01). White and non-Hispanic patients presented with better VA compared with their counterparts (median of 0.
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