Agaricus brasiliensis (Sun mushroom) and its therapeutic potential: A review
Published on: 10th January, 2022
In recent decades, the chemical, nutritional, and functional properties of edible mushrooms have attracted considerable attention, resulting in numerous reports on their health-associated benefits. One among such edible mushrooms, Agaricus brasiliensis, is native to Brazil and is an important food supplement. This review discusses the therapeutic potential of Agaricus brasiliensis and summarizes the current studies on this edible mushroom.
Persistent Bilateral Vocal Cord Paralysis Following Unilateral Basal Ganglia Hemorrhage
Published on: 18th January, 2024
Post-stroke vocal cord paralysis is a condition much less recognized compared to dysphagia. We describe bilateral vocal cord palsy in a thirty-six-year-old man following a stroke.
Sequence-independent single-primer-amplification (SISPA) as a screening technique for detecting unexpected RNA viral adventitious agents in cell cultures
Published on: 12th March, 2021
OCLC Number/Unique Identifier: 8982622827
The sequence-independent, single-primer amplification (SISPA) enables the random amplification of nucleic acids, allowing the detection and genome sequencing of different viral agents. This feature of SISPA method provides evidence for application of it in monitoring the presence of adventitious RNA viruses in cell cultures. We evaluated SISPA method for the detection of a challenge RNA virus representing adventitious agent in cell cultures. Besides, by optimizing the SISPA method in our laboratory, we found false-positive results on negative control lanes in electrophoresis gels. To investigate the sources of contamination, false-positive results of SISPA were cloned into Escherichia coli cells, sequenced, and phylogenetically analyzed. This data revealed that the SISPA method can be used as an adjunct method to confirm the absence of unexpected adventitious RNA viruses in cell cultures. The phylogenetic analysis of SISPA contaminant sequences showed that the false-positive results were caused by nucleic acid amplification of commercial cDNA synthesis kit reagents, probably tracing back to expression plasmids and host ribosomal sequences, used for the production of enzymes. Therefore, laboratories using random amplification methods must be constantly aware of the potentials of such contaminations, yielding false-positive results and background noise in the final NGS reads.
Differential roles of trithorax protein MLL-1 in regulating neuronal Ion channels
Published on: 8th September, 2021
OCLC Number/Unique Identifier: 9244745887
Repressive regulation of potassium channel genes by Polycomb group (PcG) proteins contributes to PcG protein-mediated neuroprotection against neuronal ischemic injury, as seen in an ischemic stroke. Here we asked the question whether Trithorax group (TrxG) proteins, the antagonistic partners of PcG proteins (i.e, epigenetic activators targeting the same genes) may also regulate potassium channels. Results of patch-clamp studies on cultured neuronal cells showed that inhibition of TrxG protein MLL-1 led to an increase in potassium channel activity, an unexpected effect for a presumed gene activator. In contrast, decreased sodium currents were observed with MLL-1 inhibition. Increased or decreased levels of potassium channel protein Kv2.1 or sodium channel protein Nav1.2, respectively, were seen with MLL-1 inhibition, as determined by immunocytochemistry. These results, for the first time, demonstrate an involvement of TrxG protein MLL-1 in regulating neuronal ion channels, potentially repressing potassium channel genes.
Posterior pericardiotomy in heart valve surgery; is it still performed or neglected?
Published on: 4th July, 2022
Background: Posterior pericardiotomy (PP) is helpful to prevent arrhythmia; especially atrial fibrillation (AF), and cardiac tamponade postoperative cardiac valve surgery. The incidence of postoperative AF is increased due to postoperative pericardial effusion (PE). This study aimed to investigate the early outcome of PP after heart valve surgery. Methods: In this prospective study, 120 patients underwent elective valve heart surgery at our center from January 2020 until April 2022. Patients were followed up for AF and pericardial effusion, and reopening due to tamponade. Results: The mean age of patients was 35.26 years, 70.2% were female and 29.8% were male. Surgery was elective and all were valve surgery. The incidence of postoperative AF was 2%, and pericardial effusion was seen in 1% of patients. Tamponade was not seen in any case. Left PE needed intervention tube drainage of 2%. Conclusion: Posterior pericardiotomy is a simple and safe procedure during valve heart surgery, and it is effective in reducing the incidence of atrial fibrillation, pericardial effusion, and tamponade.
The “sweet” relations between diabetes and platelets
Published on: 28th July, 2022
Atherosclerosis is the most important factor that leads to the high risk of atherothrombotic cases in patients with diabetes mellitus (DM). High morbidity and mortality in these patients are firstly caused by cardiovascular disease, mostly coronary artery disease (CAD) along with acute coronary syndrome (ACS) [1].
Tolerance to extreme doses of psychoactive substances
Published on: 31st December, 2021
OCLC Number/Unique Identifier: 9382546095
The article shows that the current level of physiology does not disclose the biological mechanisms of the organism’s transition from one range to adapt to a higher one with an increase in the regular forces of the stimulus above sub-extreme. A new trend in the physiology of adaptation - proqredient adaptation, explains the mechanism of increasing the tolerance of the organism, with dependence on psychoactive substances (PAS). Scientific has reasonably shown that depending on the organism from PAS - not the disease, and the states like proqredient adaptation.
The Role of Advanced Imaging in Paediatric Cardiology: Basic Principles and Indications
Published on: 24th June, 2023
Tissue Doppler Imaging and Speckle Tracking Echocardiography are newer echo-cardiographic modalities, that assess myocardial and valvular function in congenital and acquired heart diseases in childhood. In addition, cross-sectional imaging including Cardiac Magnetic Resonance (CMR) and Cardiac Computed Tomography has been widely used over the last decade in paediatric cardiology, in order to evaluate intra-cardiac and extra-cardiac anatomy. Cardiac Magnetic Resonance particularly allows detailed analysis of myocardial function, and shunt quantification and has applications even in fetal life. This mini-review summarizes the basic principles of the above-advanced modalities and highlights their main indications and clinical applications in childhood.
A Study of Complete and Incomplete Reactions of 12C + 169Tm System at Energy Range ≈ 4.16 –7.5 MeV/Nucleon
Published on: 26th June, 2023
An attempt was made in this study to measure the excitation functions of 169Tm(12C, 4n)177Re, 169Tm(12C, 5n)176Re, 169Tm(12C, αn)176Ta, 169Tm(12C, α2n)175Ta, 169Tm(12C, α3n) 174Ta, 169Tm(12C, α4n)173Ta and 169Tm(12C, 2α2n)171Lu reaction channels populated in the interaction of 12C projectile with 169Tm target were considered in order to investigate the mechanisms of complete and incomplete fusion reactions. The theoretically predicted excitation functions using the PACE4 code were compared with the previously measured excitation functions. For non α emitting channels cross-section values predicted by PACE4 in general were found to be in good agreement with the experimentally measured values. However, for α-emitting channels, the measured cross-section values were found to be higher than the values predicted by PACE4. The observed disagreement may be credited to projectile break-up in the vicinity of n-n interaction.
Addressing the disparities and the factors related to prolonged inpatient length of stay for solid tumor oncology patients during the COVID-19 pandemic: A narrative review
Published on: 17th September, 2021
OCLC Number/Unique Identifier: 9272370671
Solid tumor oncology treatments are primarily performed in the outpatient setting. However, hospitalizations are inevitable due to complications of cancer and treatment-related toxicities. With rising health care spending, the length of hospital stay (LOS) is increasingly considered a proxy for healthcare costs. There are several ongoing efforts to abbreviate the inpatient LOS and ensure a safe and timely discharge to the outpatient setting. In addition to the acute illness and the associated comorbidities, various factors affect the LOS: social determinants of health (SDOH), nutritional status in cancer patients, and end-of-life issues. Furthermore, it is unclear how the institutional policies on social distancing and visitation during the current coronavirus disease (COVID-19) pandemic may impact the LOS. The purpose of this article is to review various factors and barriers that lead to longer LOS for solid tumor patients during the COVID-19 pandemic, and identify the critical areas of quality improvement.
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