Medical
Zahra Yekanipour; Hamed Afkhami; Parya Amini; Mohammad Reza Mohammadi; Zahra Rafiei Atani; Kianoosh Dadashzadeh
Abstract
The necessity of using ozonated oil and water for treating infections such as gonorrhea and meningitis which their treatment by common antibiotics is sometimes difficult and it is becoming more apparent every day. In this study, the antibacterial effect of ozonated oil and water against Neisseria ...
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The necessity of using ozonated oil and water for treating infections such as gonorrhea and meningitis which their treatment by common antibiotics is sometimes difficult and it is becoming more apparent every day. In this study, the antibacterial effect of ozonated oil and water against Neisseria gonorrhoeae (N. gonorrhoeae) and N. meningitidis were investigated using Broth microdilution methods at zero, 24 and 48 hours after incubation at 37°C. The results were determined by culturing bacteria on their specific culture medium and using an ELISA reader to determine minimum inhibitory and bactericidal concentrations (MIC and MBC, respectively). The results showed that ozonated oil with PI=500 had an expressive effect on N. meningitidis. The concentration of 0.09PI was determined as MIC and the concentration of 0.19PI was determined as MBC. The ozonated oil with PI=1000 had an expressive effect on N. gonorrhoeae. The concentration of 3.12 PI was determined as MIC and the concentration of 6.25 PI was determined as MBC. Ozonated water containing 2.5 mg/L of ozone had no significant antimicrobial effect on the studied bacterial species. The results of this study showed that ozonation of oil may improve its chemical properties. In addition, by increasing the incubation time to 24 hours, ozonated oil showed a favorable antibacterial effect against N. gonorrhoeae and N. meningitidis.
Medical
Lester Raymundo Dominguez Huarcaya; María Fernanda Dominguez Ríos; Mohammad Reza Mohammadi; Zahra Rahimi
Abstract
At least in some individuals, the development of major depressive disorder (MDD) appears to be significantly influenced by neuroinflammation. Microglia, which are situated within the brain, represent a type of immune cell that exhibits the capability to transform into a reactive state in response to ...
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At least in some individuals, the development of major depressive disorder (MDD) appears to be significantly influenced by neuroinflammation. Microglia, which are situated within the brain, represent a type of immune cell that exhibits the capability to transform into a reactive state in response to inflammatory attacks. This unique ability substantiates the critical role microglia play in the initial stages of neuroinflammation. Empirical studies have revealed that microglia are proficient in discerning infections or damaged cells, thereby instigating a cytotoxic response that exacerbates the damage inflicted on brain cells. However, microglia display a wide range of reactions to injury and may potentially contribute to the process of recuperation and the reinstatement of impaired tissues. It is possible that changing the phenotype of microglia through the regulation of inflammatory pathways is essential in order to harness neuroinflammation in MDD. This study examines potential new treatment paths for modulating neuroinflammation in brain disorders by analyzing canonical proinflammatory, anti-inflammatory, and metabolic mechanisms in microglia. the primary focus is on the major depressive disorder (MDD), but will also discuss other brain diseases.
Medical
Sara Amini; Amir Hossein Omidi; Hamed Afkhami; Hoda Sabati; Amin Mohsenzadeh; Atyieh Soleymani; Mohammad Ali Zonobian; Negin Ghanbarnejad; Mohammad Reza Mohammadi
Abstract
Staphylococcus aureus is one of the most common infectious bacterial species and one of the agents of community-acquired infections (CAIs) and hospital-acquired infections (HAIs). Aminoglycosides are potent antibactericidal agents often used together with Beta Lactams or Glycopeptides, especially in ...
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Staphylococcus aureus is one of the most common infectious bacterial species and one of the agents of community-acquired infections (CAIs) and hospital-acquired infections (HAIs). Aminoglycosides are potent antibactericidal agents often used together with Beta Lactams or Glycopeptides, especially in treating Staphylococcal endocarditis. The present research aimed to determine the frequency of the aac (6 ́)-le-aph (2 ́ ́) gene that encodes Aminoglycoside modifying enzymes using PCR on clinical isolates of S. aureus. 115 clinical isolates of S. aureus were collected at educational hospitals in Karaj during 12 months. They were first identified by using standard biochemical and laboratory methods and, following CLSI principles and procedures, antibiotic sensitivity patterns of all isolates were obtained using the disc diffusion method. Moreover, using agar dilution, the minimum inhibitory concentration was determined using the antibiotic powder Gentamycin. Finally, gene frequency was measured by employing PCR. The highest levels of resistance to Aminoglycosides were observed in Kanamycin (47.8%), Gentamycin (46.9%), and Tobramycin (46.9%), and Doxycycline and Ciprofloxacin with 50.4 and 49.5 percent respectively, were the non-Aminoglycoside antibiotics to which the highest levels of resistance were exhibited. The frequency of the aac (6 ́)-le-aph (2 ́ ́) gene was 39.1 percent. Rapid and timely detection of resistant strains seems to be necessary in selecting suitable treatment options and in preventing the spread of resistance. Furthermore, rapid identification of genes that encode AME enzymes using PCR enjoys special advantages such as high levels of precision and speed.
Medical
Mohammad Mehdi Soltan Dallal; Zahra Rajabi; Mohammad Reza Mohammadi; Arezoo Bagheri Sadegi
Abstract
Foodborne diseases are a global problem that is spreading day by day. These diseases are one of the most common causes of death in children and the elderly. This study was conducted to investigate the prevalence of water and foodborne diseases in Kurdistan province for six months from April to September ...
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Foodborne diseases are a global problem that is spreading day by day. These diseases are one of the most common causes of death in children and the elderly. This study was conducted to investigate the prevalence of water and foodborne diseases in Kurdistan province for six months from April to September 2022. Stool samples from patients were collected in the laboratory in a special container containing 10% formalin preservative. 134 stool samples from 28 food outbreaks from Kurdistan province were analyzed for the type of infected bacteria. The research results were analyzed in SPSS-19 software. Among the 28 outbreaks in Kurdistan province during the two seasons of spring and summer, the highest number of outbreaks was in the summer season with 20 and then in the spring season with 8 outbreaks. The dominant age group was children under 10 years (%21) old and people between 20-30 years old, and the dominant gender group was men. The most common clinical symptoms were nausea, vomiting, abdominal cramps, bloody diarrhea and non-bloody diarrhea. It is important to know the type of bacteria that cause water and foodborne diseases in reducing outbreaks and treatment costs and applying necessary measures for control and prevention.
Medical
Yang Yang; Yuxue Jiao; Mohammad Reza Mohammadi
Abstract
Protein is an important component of life. Protein modification after translation enriches the diversity of protein, regulates the structure and function of a protein, and participates in more life processes. Recent studies have found that post-translational modifications of proteins can regulate the ...
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Protein is an important component of life. Protein modification after translation enriches the diversity of protein, regulates the structure and function of a protein, and participates in more life processes. Recent studies have found that post-translational modifications of proteins can regulate the occurrence and development of tumors. The human immune system should be able to eliminate cancer cells through an acquired immune response executed by T cells. However, clinical detection of cancer cells often results from the failure of immune surveillance. Therefore, relieving immune suppression and restoring antitumor immune response provides the possibility for tumor therapy. Tumor immunotherapy refers to exogenous intervention of the body's immune system, restart and maintain the "tumor-immune" cycle, restore and improve the anti-immune response of the group, strengthen the recognition and killing ability of tumor cells, so as to achieve the therapeutic effect of controlling or even clarifying the tumor specifically. Here, we review current knowledge of the current status of tumor immunotherapy and the types and effects of post-translational modifications of proteins, hoping to improve new ideas for the types of therapies.
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.
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 was 500 colorectal cancer (CRC) patients, 250 polyps of colorectal ...
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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 was 500 colorectal cancer (CRC) patients, 250 polyps of colorectal patients, and 250 healthy volunteers 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 groups and low-expression groups according to ROC cut-off values. Age was statistically different between the 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 the 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 the 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.
Medical
Mohammad Reza Mohammadi; Amir Hossein Omidi; Hoda Sabati
Abstract
SARS-CoV- 2 is the causative agent of the global pandemic, also known as Covid-19. This virus belongs to a group of coronaviruses and has affected more than ten million people across the globe, causing nearly half a million deaths worldwide. The pandemic has spread worldwide, originating in the Wuhan ...
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SARS-CoV- 2 is the causative agent of the global pandemic, also known as Covid-19. This virus belongs to a group of coronaviruses and has affected more than ten million people across the globe, causing nearly half a million deaths worldwide. The pandemic has spread worldwide, originating in the Wuhan Hubei province of China in 2019. The disease is a significant challenge as there is no antiviral treatment. This review will address current trends and emerging new methods for detecting SARS-CoV-2 in the laboratoryat present. Reverse transcriptase PCR or RT-PCR is the gold standard for detecting SARS-CoV-2 disease. The seroprevalence of Covid-19 is performed using antibody detection tests using ELISA and antigen detection as rapid tests. In clinical practice, preliminary disease identification is made based on Chest radiographs, computed tomography, and positron emission tomography (PET) scans. As the pandemic has progressed, newer methods of detection like CRISPR, nanotechnology-enabled solutions, and biosensors have emerged as new methods of detecting SARS-CoV-2.
Medical
Mohammad Reza Mohammadi; Hoda Sabati
Abstract
NCP (new coronavirus pneumonia) was discovered in Wuhan towards the end of 2019 and quickly spread throughout the city. The infection was identified as a novel coronavirus, and the World Health Organization (WHO) called it coronavirus disease-19 (COVID-19). Most people with this infection can experience ...
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NCP (new coronavirus pneumonia) was discovered in Wuhan towards the end of 2019 and quickly spread throughout the city. The infection was identified as a novel coronavirus, and the World Health Organization (WHO) called it coronavirus disease-19 (COVID-19). Most people with this infection can experience mild to severe and even fatal symptoms after a period of disease incubation of 4 to 14 days. In up to 10% of patients, gastrointestinal symptoms such as nausea and diarrhea, as well as associated abdominal discomfort, may occur before respiratory symptoms. Several SARS-CoV-2 variations have been identified during the epidemic, however, only a handful are deemed variants of concern (VOCs) by the WHO due to their worldwide public health effect. In this article, we looked at new mutations in COVID-19 as well as the adverse effects of the virus on the cardiovascular and gastrointestinal tract. The discovery of these novel SARS-CoV-2 variations threatens to undo the substantial success made so far in restricting the spread of this viral disease, despite the extraordinary speed with which vaccines against COVID-19 have been developed and vigorous worldwide mass immunization efforts. Through mechanisms involving the dysregulated ACE 2 receptor and TMPRSS2, the SARS-CoV-2 virus has the potential to induce significant systemic disease in the GI tract, liver, biliary tract, and pancreas. Due to the observation of new and daily mutations of this dangerous virus, the definitive treatment of this disease is becoming more and more difficult and facing major challenges that it requires many clinical trials and researches.
Medical
Amir Hossein Omidi; Hoda Sabati; Sara Amini; Mohammad Ali Zonobian; Mohammad Reza Mohammadi
Abstract
Staphylococcus aureus is gram-positive cocci, which is consistently one of the four causes of hospital infections. S. aureus is a member of the normal nasal and intestinal flora in 30-50% of the population. But this organism is carried in almost 90% of the clinical staff of hospitals. S. aureus is an ...
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Staphylococcus aureus is gram-positive cocci, which is consistently one of the four causes of hospital infections. S. aureus is a member of the normal nasal and intestinal flora in 30-50% of the population. But this organism is carried in almost 90% of the clinical staff of hospitals. S. aureus is an important cause of a wide variety of infectious diseases in humans. This bacterium often causes infections such as endocarditis, bacteremia, and pneumonia. S. aureus species are typically resistant to a large number of drugs. These bacteria are able to sustain and grow properly in the hospital environment and are easily transmitted to people who have weak immune systems. So far, methicillin-resistant S. aureus (MRSA) has been limited to hospitals, but with the increase in skin and soft tissue infections and necrotizing pneumonia in younger patients, methicillin-resistant staphylococci in the community (CA-MRSA) has spread throughout the world.
Medical
Lester Raymundo Dominguez Huarcaya; Mohammad Reza Mohammadi; Maria Fernanda Dominguez Rios
Abstract
It is possible for the non-motor symptoms (NMS) of Parkinson's disease (PD), which include constipation, sleep difficulties, and olfactory impairments, to appear up to 20 years before the motor symptoms of the disease. There is a growing body of research that suggests the pathology of Parkinson's disease ...
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It is possible for the non-motor symptoms (NMS) of Parkinson's disease (PD), which include constipation, sleep difficulties, and olfactory impairments, to appear up to 20 years before the motor symptoms of the disease. There is a growing body of research that suggests the pathology of Parkinson's disease may begin in the gastrointestinal tract and progress to the brain. Numerous studies provide credence to the idea that the microbiota in one's gut communicates with one's brain in Parkinson's disease (PD) via way of the immune system, a certain amino acid metabolism, and the neurological system. Through what has become known as the "gut microbiota-brain axis" (GMBA), the gut microbiota is thought to play an important part in the modulation of several neurochemical pathways.In the process of mediating the crosstalk between the gut microbiota and the physiology of the host, many of the metabolites produced by the gut microbiota, such as fatty acids, amino acids, and bile acids, carry signaling activities. In Parkinson's disease (PD), the quantity of amino acids and species-specific alterations of amino acids, such as glutamate and tryptophan, may interfere with the signaling transmission between nerve cells and disrupt the normal operation of the basal ganglia. Certain amino acids and the receptors that bind to them are being looked at as new possible targets for the treatment of PD. The purpose of the current investigation was to compile and analyze all of the evidence that is currently available on the gut microbiota-derived amino acid metabolic changes that are related with PD.
Medical
Mohammad Reza Mohammadi; Mahram Ali Mehran; Amir Hossein Omidi; Mohammad Hadi Hassani
Abstract
Tuberculosis is a contagious infectious disease. This disease is called tuberculosis and is abbreviated as TB. Tuberculosis is one of the most important infectious diseases of this century, which can involve all the organs of the body, but the lungs are most affected by tuberculosis. The occurrence of ...
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Tuberculosis is a contagious infectious disease. This disease is called tuberculosis and is abbreviated as TB. Tuberculosis is one of the most important infectious diseases of this century, which can involve all the organs of the body, but the lungs are most affected by tuberculosis. The occurrence of 10 million new cases of tuberculosis and the treatment of only two-thirds of them, which unfortunately was incomplete in more than 50% of cases, shows the depth of the disaster in these years. The occurrence of three epidemics of this disease in the last two decades shows that the prospect of controlling tuberculosis soon is very uncertain. Today, more than 8 million people are infected with this disease in the world every year, and until now, one-third of the world's people have been infected with the germ of tuberculosis without feeling sick. Tuberculous peritonitis is an uncommon disorder; sometimes, it is not considered in the initial evaluation of ascites. A negative 5-TU PPD test, or a low level of ascitic fluid protein, can mistakenly divert attention from tuberculosis. Tuberculosis peritonitis can be fatal if not diagnosed in time. Here we report a 67-year-old patient who was confirmed to have tuberculous peritonitis after clinical examination and laboratory diagnosis. The patient recovered after diagnosis with prescribed drugs.