J Recept Signal Transduct Res
December 2024
OMVs derived from can lead to cell transformation in gastric epithelium and cancer. Additionally, exosomes (Exos) released by host cells infected with can significantly contribute to the development of diseases such as cancer. In this study, the effects of both Exos from AGS cells treated with -derived OMVs on the expression of genes related to the TGF-β/SMAD signaling pathway in hepatocellular carcinoma (HCC) cells were investigated.
View Article and Find Full Text PDFThis study was conducted to investigate the effect of fibrin glue-CM11 antibacterial peptide mixture (FG-P) on the healing of infected wounds . We formulated a mixture of FG-P and evaluated its antimicrobial activity against multidrug-resistant (MDR) bacteria involved in wound infection as well as its healing effect on wound infected by methicillin-resistant (MRSA) . The peptide had an MIC of 8 μg/ml against all bacteria isolates.
View Article and Find Full Text PDFJ Mater Sci Mater Med
August 2023
Helicobacter pylori is the cause of most cases of stomach ulcers and also causes some digestive cancers. The emergence and spread of antibiotic-resistant strains of H. pylori is one of the most important challenges in the treatment of its infections.
View Article and Find Full Text PDFTrials
July 2023
Background: The coronavirus disease 2019 (COVID-19) pandemic has been shown to affect nutritional recommendations. Some functional foods have been demonstrated to be useful in the treatment of people with COVID-19. However, little is known about the impact of combining functional foods on disease control.
View Article and Find Full Text PDFIran J Biotechnol
April 2023
Background: In animals and plants, antimicrobial peptides (AMPs) are crucial components of defense mechanisms, as they play a crucial role in innate immunity, which protects hosts from pathogenic bacteria. The CM15 has attracted considerable interest as a novel antibiotic against gram-negative and positive pathogens.
Objective: The aim of this study was to investigate the permeation potential of the CM15 with membrane bilayers of and .
Antimicrobial peptides (AMPs) are among the compounds that have significant potential to deal with infectious skin wounds. Using wound dressings or skin scaffolds containing AMPs can be an effective way to overcome infections caused by antibiotic-resistant strains. In this study, we developed an amniotic membrane-based skin scaffold using silk fibroin to improve mechanical properties and CM11 peptide as an antimicrobial peptide.
View Article and Find Full Text PDFThis systematic review and meta-analysis were conducted to evaluate the impact of bergamot (KoksalGarry) and its nutraceutical compounds on lipid profiles. PubMed, Web of Knowledge, Scopus, and Google Scholar searched for relevant articles. Trials investigating the effect of oral bergamot supplementation on serum levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) in adults were included.
View Article and Find Full Text PDFIn this study, we consider the effect of treadmill exercise training, green tea extract, and combination of exercise training with green tea extract, in aging rat cardiac myocytes apoptosis markers (i.e., HIF-1α, BNIP3, Bax, IGFBP3, Bcl-2, caspase-3, MDA, GPx, Bax/Bcl-2 ratio, and hematoxylin and eosin).
View Article and Find Full Text PDFBackground And Purpose: The lack of a new effective treatment for small cell lung cancer (SCLC) is an unresolved problem. Due to the new identification of delta-like ligand 3 (DLL3) and its high expression in SCLC patients, the use of DLL3 in target therapy can be effective. The use of bacterial toxins belonging to the ADP-ribosyl transferase toxins family and human enzymes to remove cancerous cells has been effective in the structure of immunotoxins.
View Article and Find Full Text PDFIt has been about a century since the discovery of the first antibiotic, and during this period, several antibiotics were produced and marketed. The production of high-potency antibiotics against infections led to victories, but these victories were temporary. Overuse and misuse of antibiotics have continued to the point that humanity today is almost helpless in the fight against infection.
View Article and Find Full Text PDFIn the last century, the emergence of tools has improved the quality of healthcare studies by providing high quality predictions. In the case of COVID-19, these tools have been advantageous for bioinformatics analysis of SARS-CoV-2 structures, studying potential drugs and introducing drug targets, investigating the efficacy of potential natural product components at suppressing COVID-19 infection, designing peptide-mimetic and optimizing their structure to provide a better clinical outcome, and repurposing of the previously known therapeutics. These methods have also helped medical biotechnologists to design various vaccines; such as multi-epitope vaccines using reverse vaccinology and immunoinformatics methods, among which some of them have showed promising results through , and clinical trial studies.
View Article and Find Full Text PDFIn the current study, we investigated the antibacterial activity of main quorum sensing autoinducers of Pseudomonas aeruginosa, C12-HSL and C4-HSL, against MDR Staphylococcus aureus isolates and their synergistic effects with some common antibiotics. Forty clinical isolates of S. aureus were collected and their antibiotic susceptibility pattern was evaluated.
View Article and Find Full Text PDFBackground: () is an opportunistic microorganism and one of the most important causes of urinary tract infection. This study aimed to evaluate the frequency of producing broad-spectrum beta-lactamase in urinary tract infection and to determine the pattern of drug resistance.
Methods: This study was performed on 50 samples of K.
Background: According to the studies, many pathogens function as cofactors interacting with Human papillomavirus in the development of pre-cancer or cancer of the cervix. The aim of this study was to investigate the prevalence rate of Sexually Transmitted Infections (STIs) pathogens including , , , , , and in people with HPV and without HPV infection, and frequency rate of these pathogens in high and low risk of HPV.
Methods: Cervical samples of 280 women who referred to Tehran west hospitals in Iran, between 2019 and 2020, were collected.
Unlabelled: SARS-CoV-2 is a corona virus that has been the cause for one of the deadliest pandemics of history, started since 2019. Suppressing the activity of the critical enzymes in the SARS-CoV-2 could potentially inhibit a vital step in viral life cycle. Papain-like protease (PLpro) could be regarded as a critical enzyme in viral replication of SARS-CoV-2.
View Article and Find Full Text PDFShort-chain bioactive peptides are new and promising antimicrobial, immune moderating, and antioxidant agents. Therefore, the present study was conducted to evaluate in vitro antibacterial activity of CM11, a short antimicrobial peptide (AMP), against Streptococcus iniae and Yersinia ruckeri as fish pathogenic bacteria using standard disk diffusion and microdilution assays. In addition, in vivo effects of CM11 on fish growth, immunity, antioxidant activity, and disease resistance were evaluated using zebrafish (Danio rerio) as an animal model.
View Article and Find Full Text PDFDue to the broad-spectrum of antibiotic resistance, herein we investigated the possibility of using imipenemconjugated silver nanoparticles (IMP-AgNPs) against multidrug-resistant isolates of . For this purpose, 200 clinical isolates were tested against different antibiotics to determine the antimicrobial susceptibility. To identify and resistance genes, PCR was used.
View Article and Find Full Text PDFThe Coronaviridae family comprises large enveloped single-stranded RNA viruses. The known human-infecting coronaviruses; severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV), novel SARS-CoV-2, human coronavirus (HCoV)-NL63, HCoV-229E, HCoV-OC43 and HKU1 cause mild to severe respiratory infections. The viral diseases induced by mammalian and avian viruses from Coronaviridae family pose significant economic and public health burdens.
View Article and Find Full Text PDFExercise training with anti-inflammatory effects can improve insulin sensitivity in muscle tissue. This study investigated the effects of eight-week swimming exercises on lipid profile, toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and peroxisome proliferator-activated receptor gamma (PPAR-γ) in gastrocnemius muscle of rats fed with high-fat diet (HFD). Thirty-two healthy male Wistar rats (8 weeks, 200 ± 20 g) were randomly divided into four groups (n = 8 each group): the control (C), aerobic exercise (E), HFD, and HFD + aerobic exercise (HFD & E).
View Article and Find Full Text PDFObjective: Acinetobacter baumannii (A. baumannii) has caused many problems in nosocomial infections. Efflux pumps are considered as one of the most important mechanisms of resistance in this bacterium and have the ability to excrete toxic substances such as antibiotics out of the cell.
View Article and Find Full Text PDFBackground: is a common cause of community-acquired pneumonia. The global increased resistance of strains to macrolide (ML) has become a worrisome health problem. The widespread use of these medications has led to increased rate of reported ML-resistant (MRMP) throughout the world.
View Article and Find Full Text PDFIntroduction: The extensive drug-resistant (XDR) () causes a range of infections with high mortality rate, which inflicts additional costs on treatment. The use of nano-biotechnology-based methods in medicine has opened a new perspective against drug-resistant bacteria. The aim of this study was to evaluate the effectiveness of the AgNO3 nanoparticles alone and conjugated with imipenem (IMI) to combat extensively drug-resistant .
View Article and Find Full Text PDFBackground & Objective: is a natural inhabitant of the environment and causes severe diarrhea ailments (cholera) that affects thousands of people each year worldwide. The most important virulence factors of this pathogen are cholera toxin (cholera toxin CT) and Type IV pili (toxin co-regulated pili TCP), which are encoded within the genome of the filamentous bacteriophage CTXφ. In the present study, according to researchers' report on genotypic variations of cholera toxin, we evaluated the sequence of subunit obtained from 100 strains of patients infected with cholera in Iran.
View Article and Find Full Text PDFBackground: is one of the most important bacteria causing nosocomial infections worldwide. Over the past few years, several strains of have shown antibiotic resistance, which may be due to the activity of efflux pumps. This study was aimed to detect efflux pump genes and their contribution to antibiotic resistance in clinical isolates.
View Article and Find Full Text PDFBackground & Objective: Enterococcus Species are the common cause of nosocomial infections, which are highly resistant to different antibiotics. Therefore, determination of their antibiotic susceptibility patterns and simultaneous resistance to antibiotics is important for better treatment strategies.
Methods: 400 clinical isolates were collected from different hospitals in Tehran, Iran.