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Chronic total occlusion (CTO) is defined as coronary artery obstruction with no luminal continuity. Comparative outcomes of PCI in patients with in-stent CTO (IS-CTO) versus de-novo CTO are unclear.
An extensive literature search was done for outcomes of PCI in patients undergoing IS-CTO and de-novo CTO. The primary endpoint was major adverse cardiac events (MACE) and secondary endpoints were cardiovascular mortality, MI, and procedural success. Odds ratio (OR) with a 95% confidence interval (CI) was calculated using RevMan 5.3.
Five studies consisting of 3,681 patients (IS-CTO = 464, de-novo CTO = 3,217) were included. PCI in IS-CTO was associated with a significantly higher odds of MACE (OR 2.21, 95% CI 1.32-3.68, p = 0.002) and MI (OR 4.31, 95% CI 1.94-9.58, p = 0.0003) compared to patients with de-novo CTO. Mortality outcome (OR 1.49, 95% CI 0.93-2.39, p = 0.10) between the two groups was similar. Overall odds of procedural-success were similar among the groups (OR 1.11, 95% CI 0.84-1.46, p = 0.47).
PCI for in-stent CTO might be associated with higher odds of MACE and MI compared to PCI for de-novo CTO. However, cardiovascular mortality or failure of procedure are similar.
PCI for in-stent CTO might be associated with higher odds of MACE and MI compared to PCI for de-novo CTO. However, cardiovascular mortality or failure of procedure are similar.
Our aim was to investigate the possible neuroprotective properties of papaverine in sepsis-induced critical illness neuropathy (SCIN) through the evaluation of various inflammatory biochemical markers, including interleukin 6 (IL-6), C-reactive protein (CRP), and tumor necrosis factor-alpha (TNF-α), and oxidative stress biomarkers, such as malondialdehyde (MDA) and lactic acid. Additionally, evaluation of the HMGB1/RAGE interactions in SCIN was another target of this research.
To create a sepsis model, a procedure involving intraperitoneal injection of feces was performed on 48 rats. The rats were divided into four equal groups sham operated, controls and those receiving 20 and 40 mg/kg/day papaverine. After five-day treatments, compound muscle action potential (CMAPs) with electroneuromyography (ENMG) was recorded in all rats. Following ENMG evaluations, the plasma levels of sRAGE, HMGB1, TNF-α, IL-6, CRP, MDA and lactic acid were measured.
TNF-α, CRP, IL-6, HMGB1, MDA, and lactic acid levels were significantly elevated in the SCIN group, and sRAGE levels were significantly decreased. In recipients of papaverine (20 and 40 mg/kg) treatment, these biochemical findings were improved. Furthermore, electrophysiological findings also showed significant improvement in both 20 and 40 mg/kg papaverine treated groups.
Papaverine demonstrates neuroprotective effects in a rat model of SCIN. Considering its anti-inflammatory and antioxidant properties, papaverine's neuroprotective effects possibly stem from the suppression of the RAGE-HMGB1 axis.
Papaverine demonstrates neuroprotective effects in a rat model of SCIN. Considering its anti-inflammatory and antioxidant properties, papaverine's neuroprotective effects possibly stem from the suppression of the RAGE-HMGB1 axis.
Zika virus (ZIKV) is transmitted to humans throughout bites of
mosquitoes. ZIKV infection may be asymptomatic in most cases, but it may cause fever, headache, muscle pain, and rash. Guillain-Barré syndrome also may be associated with the infection. Furthermore, the Pan American Health Organization informed 3,715 cases of the congenital ZIKV syndrome (CZS) in the Americas from 2015 - 2017, which may include microcephaly and other craniofacial deformities.
This review identifies patent documents on repositioning for ZIKV infection treatment of already approved drugs or phases II/III investigated drugs for other diseases. Thirty-six patents were found reporting compounds with anti-ZIKV activity with application dates ranging from 2015 to 2019.
The main drugs claimed in patents were ribavirin, sofosbuvir, and alpha interferons. Preventing CZS is one of the most significant challenges in ZIKV infection. Therefore, repositioning sofosbuvir and niclosamide, that pose no danger for pregnant women, is a particular issue to be considered for clinical tests involving ZIKV disease. Lipopolysaccharides Given the substantial costs and developing time of new a drug, repositioning of old drugs is becoming an attractive alternative for diseases with neglected treatments.
The main drugs claimed in patents were ribavirin, sofosbuvir, and alpha interferons. Preventing CZS is one of the most significant challenges in ZIKV infection. Therefore, repositioning sofosbuvir and niclosamide, that pose no danger for pregnant women, is a particular issue to be considered for clinical tests involving ZIKV disease. Given the substantial costs and developing time of new a drug, repositioning of old drugs is becoming an attractive alternative for diseases with neglected treatments.Radiotherapy is an important treatment regime for lung cancer, worldwide. However, radiation-induced pneumonitis and fibrosis are the treatment-limiting toxicities among patients who have undergone radiotherapy. The epithelial cells via epithelial to mesenchymal transition [EMT] acquires mesenchymal phenotype, which ultimately leads to fibrosis. Many investigations are focussed on understanding the signalling pathways mediating in EMT, however, the role of histone methylation is less understood in radiation-induced lung EMT. In the present study, we analysed the effect of vanillin, an antioxidant, on histone methylation during radiation-induced EMT. The thoracic region of Wistar rats was irradiated with a fractionated dose of X-ray (3 Gy/day) for two weeks (total of 30 Gy). The irradiated animals were sacrificed at the 8th and 16th weeks and tissues were used for analyses. Our data showed that radiation decreased the level of antioxidant enzymes such as SOD, catalase and reduced glutathione that would ultimately enhance oxidative stress in the tissues. Histopathological analysis revealed that radiation increased the infiltration of inflammatory cells to the tissue injury site. Total global histone methylation was increased upon irradiation, which was effectively prevented by vanillin administration. Vanillin enhanced E-cadherin expression and decreased the mesenchymal markers N-cadherin and vimentin in the irradiated lung tissue. The ChIP-qPCR analysis suggested that snail expression in the nucleus might involve in the enrichment of suppressive marker H3K9me3 on the E-cadherin promoter. Finally, we suggested that vanillin administration decreased radiation-induced oxidative stress and EMT expression. Additionally, irradiation increased the H3K9 methylation status with nuclear translocation of snail during lung EMT.Ductus venosus agenesis (DVA) results from portal-umbilical and hepatic-systemic venous system connection failure. Despite a large series of DVA was reported, an accurate description of single fetus cardiac trend with hemodynamic consequences is missing. We describe two fetuses with DVA early detection, comparing right ventricle (RV) development in extrahepatic and intrahepatic drainages. In extrahepatic drainage, the RV was larger and slightly hypertrophic. In intrahepatic drainage, the RV showed reduced dimensions. Ventricle dimension differences decreased and became balanced in perinatal period. Detection of non-balanced ventricles in early second trimester should lead to sonographic follow-up. If DVA is hypothesized, it is important to identify other subdiaphragmatic connections that could alter cardiac preload and ventricle development.Total sleep deprivation (TSD) is known to impair sustained attention. However, previously reported effects of TSD on response inhibition are mixed. We administered a "stop-signal" variation of the psychomotor vigilance test, which included 25% of trials requiring withholding of a response to assess response inhibition alongside sustained attention. Participants completed the task at baseline and after 34.5 h of wakefulness. Accuracy was not reduced during TSD. However, response times were significantly slower. A speed/accuracy trade-off allowed participants to effectively withhold responses on inhibition trials and conferred resilience of inhibitory control during TSD under conditions of relatively low time pressure.
Non-pharmacological interventions that promote quality of life in people with dementia are urgently needed. To accelerate development, evidence-based psychotherapies used in other populations can be considered. Mindfulness-based interventions with standardized protocols, namely mindfulness-based cognitive therapy (MBCT) and mindfulness-based stress reduction (MBSR), may be effective in people with dementia, although tailoring for cognitive impairment may be needed. Evidence from other cognitive disorders can inform research.
The authors reviewed 12 studies of MBCT/MBSR conducted in people with cognitive impairments, including 10 in stroke, traumatic brain injury, and mild cognitive impairment; and two in dementia. Protocol modifications, outcomes, and evidence quality were analyzed. Common themes to address cognitive difficulties included shortened session duration, use of memory aids, increase in repetition, simplified language, and omitted retreat sessions.
MBCT and MBSR can be applied without drastic studies.
Cancer immunotherapy is more dependent on monoclonal antibodies, proteins, and cells, as therapeutic agents, to attain prominent outcomes. However, cancer immunotherapy's clinical benefits need to be enhanced, as many patients still do not respond well to existing treatments, or their diseases may relapse after temporary control. RNA-based approaches have provided new options for advancing cancer immunotherapy. Moreover, considerable efforts have been made to utilize RNA for vaccine production. RNA vaccines, which encode tumor-associated or specific epitopes, stimulate adaptive immunity. This adaptive immune response is capable of elimination or reduction of tumor burden. It is crucial to develop effective RNA transfer technologies that penetrate the lipid bilayer to reach the cytoplasm for translation into functional proteins. Two important delivery methods include the loading of mRNA into dendritic cells ex vivo; and direct injection of naked RNA with or without a carrier.
The latest results of pre-clinical and clinical studies with RNA vaccines in cancer immunotherapy are summarized in this review.
RNA vaccines are now in early clinical development with promising safety and efficacy outcomes. Also, the translation capacity and durability of these vaccines can be increased with chemical modifications and sequence engineering.
RNA vaccines are now in early clinical development with promising safety and efficacy outcomes. Also, the translation capacity and durability of these vaccines can be increased with chemical modifications and sequence engineering.
Computer aided detection and diagnosis (CADe and CADx) products are an emerging branch of medical device industry. However, limited technical standard has been developed for product verification and validation. It will be helpful to investigate the current practice of preclinical and clinical evaluation of approved products and provide insights for future standardization.
Document review was conducted on 56 products approved by the United States Food and Drug Administration, including Summary of Safety and Effectiveness Data, 510(k) decision and
decision summaries. Key parameters describing product characteristics, preclinical studies and clinical studies were collected. Evaluation strategies for CADe/CADx products were analyzed and assessed.
Preclinical studies were widely adopted in the verification of CADe/CADx products. Standalone performance testing was a common procedure, but the selection of testing dataset and performance metrics showed significant variability and flexibility among manufacturers.
Website: https://www.selleckchem.com/products/lipopolysaccharides.html
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