1,125 results match your criteria: "Razi Vaccine and Serum Research Institute.[Affiliation]"

Detection of Babesia spp., and Theileria spp., in sheep across diverse provinces of Iran.

Vet Parasitol Reg Stud Reports

November 2024

Department of Parasite Vaccine Research and Production, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. Electronic address:

Article Synopsis
  • * Out of 373 samples, 27% displayed piroplasm infections, predominantly from Theileria spp. (78 samples) and Babesia spp. (23 samples), with a molecular detection rate of 38%.
  • * The main findings indicated that Theileria ovis was prevalent, while Babesia ovis was the primary cause of Babesiosis, highlighting the importance of molecular diagnostics for accurate identification, especially in co-infection scenarios.
View Article and Find Full Text PDF

Investigating the Antibacterial, Antioxidant, and Cholesterol-lowering Properties of Yogurt Fortified with Postbiotic of Lactobacillus acidophilus and Lactiplantibacillus plantarum in the Wistar Rat Model.

J Food Prot

December 2024

Department of Food Sciences and Technology, Faculty of Pharmacy Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Nutrition and Food Sciences Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.

Postbiotics have gained attention in the food industry due to their functional properties and ease of use compared to their live parent cells. Postbiotics are the metabolic byproducts of probiotic microorganisms, offering advantages such as antimicrobial and anti-diabetic effects. The study aimed to explore the potential antibacterial, antioxidant, and cholesterol-lowering effects of postbiotics from Lactobacillus acidophilus (LA) and Lactiplantibacillus plantarum (LbP) through in vitro and in vivo studies.

View Article and Find Full Text PDF

Background And Objectives: Brucellosis, a zoonotic bacterial disease caused by , affects humans and domestic animals, leading to significant economic loss. This study examined suspected cases in North Khorasan, Iran, to understand the prevalence of infection and its characteristics in this region.

Materials And Methods: Blood specimens were collected from 200 patients suspected of brucellosis after obtaining informed consent.

View Article and Find Full Text PDF

Exploration of age-related changes in reproductive parameters of female Japanese quail (Coturnix japonica).

Poult Sci

December 2024

Department of Pathology and Experimental Animals, Razi Vaccine and Serum Research Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.

The decline in reproductive efficiency during post-peak period of production in poultry species holds significant economic implications. This study aimed to investigate the productive and reproductive performance of Japanese quails across distinct production stages and the association between these parameters and some genes expression and histometric alterations within the reproductive system. A total of 180 quails from a commercial flock were selected at varying egg production stages, including young, mature, and old, with 45 female and 15 male quails allocated to each group.

View Article and Find Full Text PDF

Hydatid cyst contamination in food presents a persistent and pervasive threat to public health. Hence, several studies have been published on hydatid cysts in raw meat products. The current study aimed to meta-analyze the prevalence of hydatid cysts in meat.

View Article and Find Full Text PDF

Background: Quail is an efficient poultry species known for many years, and its productivity is highly affected by gastrointestinal function, health, digestion and commensal bacteria. Specific histological parameters and nutrient absorption-related genes could be used to study intestinal functionality and efficiency.

Objectives: This study aimed to evaluate the mRNA abundance of nutrient absorption-related genes and intestinal histology changes in laying Japanese quail during productive lifespan.

View Article and Find Full Text PDF

Production of an Efficient Enzymatically Fab Fragment Antivenom against Cobra Snake () Venom.

Arch Razi Inst

April 2024

Razi Vaccine and Serum Research Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.

Since around 100 years ago, the best treatment for millions of global snakebite victims has been polyclonal antivenoms. However, common antivenoms need continuous improvement to reduce rare, their side effects and get better performance. In the present study, Fab antivenom was produced through papain digestion of anti-cobra venom plasma, multi-step purification, and optimization, including ammonium sulfate precipitation and DEAE-cellulose column chromatography.

View Article and Find Full Text PDF
Article Synopsis
  • - The study focused on type II toxin-antitoxin systems (mazEF3, vapBC3, and relJK) and their impact on antibiotic resistance in Mycobacterium tuberculosis, specifically looking at mutations in these genes among sensitive and resistant isolates.
  • - Researchers analyzed 153 M. tuberculosis samples, finding that lineage 2 had the highest rifampin resistance and that rpoB531 mutations were common in resistant strains.
  • - A significant mutation in the mazF3 gene was identified in all rifampin-resistant isolates, suggesting its role in the development of drug resistance, indicating the need for further research with a larger sample size.
View Article and Find Full Text PDF

Background: Bioluminescence, or the production of light by luciferases, is the basis of a well-known reporter technology. A quick way to study the efficacy of antimicrobial drugs and vaccines is bioluminescence imaging (BLI). spp.

View Article and Find Full Text PDF

Periodontitis Continuum: Antecedents, Triggers, Mediators, and Treatment Strategies.

Curr Med Chem

October 2024

Council for Nutritional and Environmental Medicine (CONEM), Mo i Rana, Norway.

Periodontitis (PD) is a chronic inflammatory disease of the periodontium characterized by the formation of gingival pockets and gingival recession. The local inflammatory environment can lead to the destruction of the extracellular matrix and subsequent bone loss. The pathophysiology of PD involves interactions between genetic predisposition, lifestyle, environmental factors, the oral microbiota condition, systemic health disorders, innate and adaptive immune responses, and various host defenses.

View Article and Find Full Text PDF

Risk factors and control strategies for Brucella spp. and RB51 vaccine shedding in buffalo milk: A cross-sectional study.

Acta Trop

December 2024

Faculty of Biotechnologies (BioTech), ITMO University 191002, 9 Lomonosova Street, Saint Petersburg, Russia; Halal Research Center of IRI, Iran Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran. Electronic address:

Brucellosis is prevalent in water buffaloes, which serve as significant reservoirs. The disease adversely affects meat and dairy products and can be transmitted to humans through contaminated products. This study aimed to determine the risk factors and control strategies for Brucella spp.

View Article and Find Full Text PDF
Article Synopsis
  • * In a study of seven NB cases, signs of increased intracranial pressure were prominent, including symptoms like blurred vision and nerve palsy, while MRI scans revealed various brain abnormalities.
  • * All patients tested negative for Brucella in blood and CSF serology, but the diagnosis was confirmed using molecular techniques like PCR, highlighting the need for these advanced methods in suspected cases of NB.
View Article and Find Full Text PDF

Potential application of Clostridium chauvoei proteins was studied as a subunit blackleg vaccine or a biological adjuvant for Clostridium perfringens epsilon toxoid vaccine. Extracellular and cell surface proteins were extracted from C. chauvoei culture, and their protective efficacy was evaluated by potency test in guinea pigs.

View Article and Find Full Text PDF
Article Synopsis
  • Foot-and-mouth disease (FMD) poses major economic challenges to livestock globally, leading to a study in Iran that analyzed 90 samples from vaccinated cattle across 40 farms.
  • Results showed a high prevalence of FMD, with 66.66% of samples testing positive, primarily identifying serotypes O, A, and Asia-1.
  • The findings underscore the effectiveness of vaccination efforts in Iran but highlight the need for ongoing surveillance due to the persistence of these virus serotypes in different provinces.
View Article and Find Full Text PDF

Functional properties and safety traits of L. rhamnosus and L. reuteri postbiotic extracts.

AMB Express

October 2024

Department of Microbiology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.

Postbiotics are the non-viable bacterial products or the low molecular weight metabolites produced by probiotics that have received considerable attention owing to their health promoting effects. The present study aimed to investigate the safety and antibacterial properties of postbiotic components of Lacticaseibacillus rhamnosus (Lra) and Limosilactobacillus reuteri (Lre) for their potential applications in food products. The freeze dried postbiotic metabolites (FD-P) from Lra and Lre were extensively analyzed for their physico-chemical properties and antibacterial actions against common food borne pathogens.

View Article and Find Full Text PDF
Article Synopsis
  • Scientists are studying a special tiny delivery system called dendrimers to help get more effective medicine into cells, like curcumin, which can help fight viruses like HIV-1.
  • They created a new type of dendrimer that can make curcumin more dissolvable in water and easier for cells to absorb.
  • The tests showed that this curcumin-dendrimer combination can significantly stop HIV from growing, making it a strong candidate for future treatments.
View Article and Find Full Text PDF

Background And Objectives: Leptospirosis is an infectious zoonotic disease that can result in severe complications. It is widespread, especially in hot and humid climates such as the northern region of Iran. The immune responses to leptospirosis are multifaceted.

View Article and Find Full Text PDF

Livestock infections caused by highly toxic bacteria, such as type D and type B, present significant challenges in veterinary medicine. Such infections often require complex and elusive treatment regimens. Developing effective vaccines tailored to combat these specific pathogens remains a pressing need within the field.

View Article and Find Full Text PDF

Isolation and identification of non-tuberculous mycobacteria from aquarium fish in Ilam, Iran.

J Clin Tuberc Other Mycobact Dis

December 2024

Bovine Tuberculosis Reference Laboratory, Agricultural Research, Education and Extension Organization (AREEO), Razi Vaccine and Serum Research Institute, Karaj, Iran.

Non-tuberculous mycobacteria (NTM) are among the most important pathogens in wild, captive, marine, and freshwater fish species. So, it is important to consider fish as the primary source of infection for aquarium fish and humans. The present study analyzed the occurrence of NTM in aquarium fish in Ilam, west of Iran.

View Article and Find Full Text PDF

Acinetobacter baumannii, is among the highest priority bacteria according to the WHO categorization which necessitate the exploration of alternative strategies such as vaccination. OmpA, BamA, and Omp34 are assigned as appropriate antigens to serve in vaccine development against this pathogen. Experimentally validated exposed epitopes of OmpA and Omp34 along with selected exposed epitopes predicted by an integrative in silico approach were represented by the barrel domain of BamA as a scaffold.

View Article and Find Full Text PDF

Molecular epidemiology of brucellosis in Asia: insights from genotyping analyses.

Vet Res Commun

December 2024

Brucellosis Department, Razi Vaccine and Serum Research Institute (RVSRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.

Brucellosis infects humans and animals worldwide but is particularly prevalent in Asia. In many Asian countries, molecular diagnostic tools for accurate molecular diagnostics and molecular epidemiology are lacking. Nonetheless, some countries have conducted in-depth molecular epidemiological studies.

View Article and Find Full Text PDF

A zoonotic disease called brucellosis can cause flu-like symptoms and heart inflammation. The bacteria responsible for this disease can also enter the brain, causing a condition called neurobrucellosis that can result in long-term neurological problems. In this study, researchers aimed to determine the changes in the hippocampal cells of rats infected with Brucella.

View Article and Find Full Text PDF

Ascorbic Acid and α-Tocopherol in the Inactivated SARS-CoV-2 Vaccine Formulation: Induction of the Th1 Pattern in Aged Mice.

Viral Immunol

September 2024

Advanced Therapy Medicinal Product (ATMP) Department, Breast Cancer Research Center, Academic Center for Education, Culture and Research (ACECR), Motamed Cancer Institute, Tehran, Iran.

Aging is physiologically associated with a decline in the function of the immune system and subsequent susceptibility to infections. Interferon-gamma (IFN-), a key element in the activation of cellular immunity, plays an important role in defense against virus infections. Decreased levels of IFN- in the elderly may explain their increased risk for viral infectious diseases such as COVID-19.

View Article and Find Full Text PDF

Codon optimization of voraxin α sequence enhances the immunogenicity of a recombinant vaccine against Hyalomma anatolicum infestation in rabbits.

Vet Immunol Immunopathol

September 2024

Department of Basic Sciences, Division of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Islamic Republic of Iran.

Research has shown that voraxin α derived from male ticks stimulates blood feeding to engorge in female ticks. Whereas, the oviposition rate, egg weight, and body weight of female ticks were reduced in animals vaccinated with recombinant (r-) voraxin α. These data suggest a potential role of r-voraxin α as a functional anti-tick antigen in Rhipicephalus appendiculatus and Amblyomma hebraeum tick infestation.

View Article and Find Full Text PDF

The most preferred method for the detection of foot-and-mouth disease (FMD) viral antigen and identification of viral serotype is the enzyme-linked immunosorbent assay (ELISA). Diagnostic tests with high sensitivity are necessary both to distinguish infected vaccinated animals and execute disease control programs for the identification of the carrier animals. The current strategies for the detection of FMD virus are mainly based on the capture antibody (sandwich) ELISA test.

View Article and Find Full Text PDF