Original Article
Medical
Naghmana Kanwal; Othman Rashid Al Samarrai; Haider Majid Haider Al-Zaidi; Ali Reza Mirzaei; Mohammad Javad Heidari
Abstract
MicroRNAs (miRNA) are a group of small non-coding RNAs that regulate gene expression at the RNA level. MicroRNAs have positive regulatory effects on protein translation processes and often induce their performance by binding to the 3'-UTR mRNA region. Also, microRNAs are involved in various cellular ...
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MicroRNAs (miRNA) are a group of small non-coding RNAs that regulate gene expression at the RNA level. MicroRNAs have positive regulatory effects on protein translation processes and often induce their performance by binding to the 3'-UTR mRNA region. Also, microRNAs are involved in various cellular processes, including development, cell division, cell signaling, and cell growth, and generally play an effective role in the cell cycle and control of physiological processes and cell pathology. Several studies confirm that microRNAs play an important role in the initiation and progression of cancer, and many of them act as oncogenes and tumor suppressors. On the other hand, microRNAs are important stimulating factors that can act as biomarkers in the diagnosis and prognosis of various types of cancer, and in many cases, the occurrence of mutations in microRNAs and open-reading templates can lead to cancer. MicroRNAs also play an effective role in regulating gene expression. Biological studies have shown that about 30% of all genes and the majority of genetic pathways are regulated by microRNAs. In general, microRNAs and their target molecules are potential biological goals for primary screening, targeted treatment, and pharmaceutical resistance, and identifying them provides a clear prospect for a better understanding of the pathways leading to cancer.
Review Article
Medical
Shahnam Azizi Dargahlou; Marcello Iriti; Mahin Pouresmaeil; Lucky Poh Wah Goh
Abstract
MicroRNAs (miRNAs) are, small (roughly 19–25 nucleotides in length), conserved, non-coding, single-stranded, and functional RNA molecules with the properties of gene expression regulation through mRNA degradation, translation repression, mRNA deadenylation as well as gene silencing via histone ...
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MicroRNAs (miRNAs) are, small (roughly 19–25 nucleotides in length), conserved, non-coding, single-stranded, and functional RNA molecules with the properties of gene expression regulation through mRNA degradation, translation repression, mRNA deadenylation as well as gene silencing via histone methylation. They even have the ability to increase gene expression level. The biogenesis of miRNAs is divided into two canonical and non-canonical pathways. The second pathway has a divergent mechanism for the biogenesis of miRNAs. miRNAs can be transcribed from specific genes or introns of protein-coding genes. A single miRNA species can control the expression of hundreds of genes, and also one gene can be the target of different miRNAs. These molecules have been identified in eukaryotic organisms such as mammals and plants and even in viruses. miRNAs play an inevitable role in the life cycle of eukaryotic cells. They are involved in any biological processes such as the regulation of cell proliferation and differentiation, apoptosis, signaling, and defense responses through their spatio-temporal expression manner. Aberrant expression of miRNAs is involved in a large number of biological disorders, which illustrates their great potential to be applied in the diagnosis and treatment of various diseases. miRNA inhibitors (anti-miRs) and artificial miRNAs (miRNA mimics) are two general approaches to balance the dysregulated miRNA levels that make it possible to treat various biological disorders. In this study, in general, the biogenesis and the role of miRNAs, the origin of miRNAs, viral miRNAs, miRNA detection procedures, in silico miRNA analysis tools, miRNA-based therapies and their obstacles, and miRNAs as potential non-invasive biomarkers are discussed. Finally, the importance of dietary miRNAs is stated.
Review Article
Nano-Biotechnology
Mehran Alavi; Michael R. Hamblin; Ermia Aghaie; Seyed Ali Reza Mousavi; Mohammad Hajimolaali
Abstract
There are up to one million secondary metabolites found in plant species, some of which may have desirable therapeutic activities. Among these secondary metabolites, catechin, gallic acid, and epigallocatechin-3-gallate are natural phenolic compounds with promising antioxidant and antibacterial activity. ...
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There are up to one million secondary metabolites found in plant species, some of which may have desirable therapeutic activities. Among these secondary metabolites, catechin, gallic acid, and epigallocatechin-3-gallate are natural phenolic compounds with promising antioxidant and antibacterial activity. However, these compounds have disadvantages of poor solubility and low bioavailability in physiological conditions, along with side effects in patients. Therefore new strategies could rely on formulations with other synthetic and natural materials. Nanoformulations of secondary metabolites could be new efficient strategies to treat many chronic bacterial infections. Combinations and conjugates of catechin, gallic acid, and epigallocatechin-3-gallate with various antibiotics could reduce the dose of these compounds, increase their antibacterial activity, and decrease cytotoxicity against healthy cells. For instance, a smart combination of two or more secondary metabolites may improve therapeutic applications in physiological conditions. In this regard, the growth of antibiotic-resistant bacteria, specifically multidrug-resistant bacteria with overexpression of efflux pumps and expression of the penicillinase enzyme, has been inhibited significantly. According to recent investigations, this review will discuss the advances and challenges of new micro and nanoformulations of these natural products.
Original Article
Medical
Xiaolei Li; Mohammad Reza Mohammadi
Abstract
This study was designed to investigate the value of red blood cell distribution width (RDW), prealbumin (PA), platelet to lymphocyte ratio (PLR), and carcinoembryonic antigen (CEA) in the diagnosis of colorectal cancer. There were 500 colorectal cancer (CRC) patients, 250 polyp of colorectal patients, ...
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This study was designed to investigate the value of red blood cell distribution width (RDW), prealbumin (PA), platelet to lymphocyte ratio (PLR), and carcinoembryonic antigen (CEA) in the diagnosis of colorectal cancer. There were 500 colorectal cancer (CRC) patients, 250 polyp of colorectal patients, and 250 healthy volunteers were performed to complete blood counts with automated differential counts. The differences in RDW, PA, PLR, and CEA among the three groups were statistically significant (P<0.05). RDW, PA, PLR, CEA, and RDW+PA+PLR+CEA all had a high accuracy rate for the diagnosis of colorectal cancer. RDW, PA, PLR, CEA, and RDW+PA+PLR+CEA were divided into high expression group and low expression group according to ROC cut-off values. Age was statistically different between high and low groups in RDW, PA, and CEA. M staging was statistically different between high and low groups in CEA, and PLR. T staging was statistically different between high and low groups in PA, CEA, PLR, and RDW+PA+CEA+ PLR. N staging and blood vessel invasion were statistically different between high and low groups in CEA. TNM staging was statistically different between high and low groups in PA, CEA, PLR, and RDW+PA+CEA+PLR. Perineural invasion was statistically different between high and low groups in PA and CEA. The number of lymph node metastases was significantly and positively correlated with CEA. CEA and PLR were independent risk factors for the TNM staging. And they had good diagnostic efficacy for the TNM staging of colorectal cancer.
Original Article
Medical
Neeli Sumanth; Paspula Soumya; Asma Tabassum; Pothuganti Mamatha; Gunti Yamini; Kodhiripaka Meghamala; Ganganamoni Pravalika
Abstract
The purpose of the study was to evaluate the prevalence, co-morbidities, pharmacological therapy, and effectiveness of common lifestyle changes for metabolic dysfunction in women with polycystic ovarian syndrome (PCOS) and related comorbidities in the gynaecology division. This 6-month prospective observational ...
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The purpose of the study was to evaluate the prevalence, co-morbidities, pharmacological therapy, and effectiveness of common lifestyle changes for metabolic dysfunction in women with polycystic ovarian syndrome (PCOS) and related comorbidities in the gynaecology division. This 6-month prospective observational study of 120 PCOS patients who were gynaecology patients at a tertiary care hospital was conducted from September 2021 to February 2022. An interview with the patient was done using an assessment form. This study highlighted the supportive evidence among PCOS patients for the advantages of changing one's lifestyle. This study involved 90 PCOS individuals out of a total of 120 participants, many of them were in the 20–30 age group. This research analyses the high prevalence of cardiovascular disease co-morbidities and demonstrates that a high BMI is the most common risk factor for PCOS. The findings of our study indicate the necessity of evaluating the complications seen in individuals who are at risk, such as infertility. This line of research demonstrates the critical impact that medication and lifestyle modifications play in managing PCOS. Patients with polycystic ovarian syndrome should get advice regarding lifestyle modifications from a clinical pharmacist.
Case Study
Medical
Reginaldo Gon De Lima-Neto; Mohammad Reza Mohammadi
Abstract
Chromoblastomycosis (CBM) is a fungal disease, distributed in tropical and subtropical regions, affecting mainly rural workers. It is characterized by chronic skin lesions that may vary from nodular, tumorous, verrucous or plaque type. Associated constitutional symptoms are rarely found. The histological ...
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Chromoblastomycosis (CBM) is a fungal disease, distributed in tropical and subtropical regions, affecting mainly rural workers. It is characterized by chronic skin lesions that may vary from nodular, tumorous, verrucous or plaque type. Associated constitutional symptoms are rarely found. The histological presentation may yield a pathognomonic feature, the Medlar (sclerotic) bodies, in which a typical brown to black pigment is depicted, explaining “copper pennies” as its alias. In this article, the case of a 56-year-old woman in the countryside of Brazil is reported, whose main complaint was a chronic leg ulcer for the past 8 years. On the left leg, a large, partially ulcerated plaque lesion was found. Microbiological cultures were positive for the pathogen. Histological analysis demonstrated pseudoepitheliomatous hyperplasia, lymphohistiocytic infiltrate and sclerotic bodies (“copper pennies”). CBM’s epidemiological panorama, once established uniquely by geographical distribution, is transitioning to a global health issue, influenced by immunosuppressive conditions, global warming and migration. This scenario demands CBM to be widely considered as a differential diagnosis and may represent a clinical challenge in regions whose professionals have little expertise in infectious tropical diseases.
Review Article
Medical
Yicen Long; Xiaoqiang Du; Zhi Ouyang; Jian Zhong; Zeng Ye
Abstract
Sepsis has remained a high mortality rate worldwide. The endothelial cell dysfunction is closely associated with the development of sepsis. Hydrocortisone has potent immunological and antitoxic effects, and thus it is frequently used in the treatment of septic shock. However, it can also cause respiratory ...
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Sepsis has remained a high mortality rate worldwide. The endothelial cell dysfunction is closely associated with the development of sepsis. Hydrocortisone has potent immunological and antitoxic effects, and thus it is frequently used in the treatment of septic shock. However, it can also cause respiratory damage and death by anaphylaxis. In recent year, the combination of hydrocortisone and other drugs such as vitamin C and thiamine has achieved promising outcomes in refractory septic shock. The present review focuses on the therapeutic effects of hydrocortisone in sepsis and summarizes the mechanisms by which hydrocortisone acted on the vascular endothelial cells. We highlighted the effect of hydrocortisone on anti-inflammation, anti-apoptosis, improvement of vascular functions, and anti-oxidative stress. We also pointed out that the mechanisms by which the combination therapy with other drugs enhance the effects of hydrocortisone are still unclear and need to be clarified to determine the benefit for treatment of sepsis.
Original Article
Medical
Gandu Sravanthi; Kumara Swamy Gandla; Lalitha Repudi
Abstract
A new simple, selective, rapid, precise reversed phase high performance liquid chromatography method has been developed and validated for the estimation of Molnupiravir in bulk and its pharmaceutical dosage form. The separation was made using Symmetry ODS C18 (4.6×150mm, 5µm) column. Mobile ...
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A new simple, selective, rapid, precise reversed phase high performance liquid chromatography method has been developed and validated for the estimation of Molnupiravir in bulk and its pharmaceutical dosage form. The separation was made using Symmetry ODS C18 (4.6×150mm, 5µm) column. Mobile phase used contained Methanol: Phosphate Buffer pH-4.2 adjusted with Orthophosphoric acid solution in the ratio of 35:65% v/v in an isocratic mode at wavelength of 236nm. The mobile-phase flow rate and the sample volume injected were 1 ml/min and 10 μL, respectively. Retention time of Molnupiravir was found to be 2.8 ±0.2mins. A good linear relationship of Molnupiravir r =0.999) was observed over a concentration range of 20 to 100µg/ml of Molnupiravir. The limit of detection (LOD) and limit of quantification (LOQ) for Molnupiravir was found to be 2.6µg/ml and 6.35µg/ml. % recovery was observed in the range of 98-102%. Relative standard deviation for the precision study was found <2%.The developed method is simple, precise, specific, accurate and rapid, making it suitable for estimation of Molnupiravir in bulk and marketed pharmaceutical dosage form dosage form. It was concluded that in the present developed RP- HPLC method is simple, rapid, and accurate, hence can be used for routine quality control analysis in Pharmaceutical industry.
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