69 results match your criteria: "Razi Vaccine and Serum Research Institute (RVSRI)[Affiliation]"

In silico MLVA Analysis of Brucella melitensis from Human and Livestock in Iran.

Curr Microbiol

January 2025

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

Brucellosis, a zoonotic disease caused by Brucella spp. globally, is of great significance not only to livestock but also to public health. The most significant of the twelve species is Brucella melitensis.

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Brucella canis and smooth Brucella species infections have been reported in dogs globally. In endemic countries such as Türkiye, dogs can be infected with both species. The exact incidence of canine brucellosis in Türkiye is unknown.

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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.
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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.

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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.

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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.

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Article Synopsis
  • * The analysis found the highest prevalence rates of brucellosis in Oman, Lebanon, and Kuwait, with risk factors mainly linked to unpasteurized dairy products and close interaction with animals, affecting primarily professions like farming and dairy production.
  • * Diagnostic methods varied in their effectiveness, with immunocapture agglutination assays showing the highest detection rates, indicating a continued need for improved understanding and control strategies for this disease in the region.
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Brucellosis, caused by various Brucella species, poses a significant threat to global public health and livestock industries. This study aims to fill the knowledge gap concerning the presence of Brucella spp. in rodents on livestock farms in Iran.

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Pebrine disease, caused by Nosema bombycis (N. bombycis), is the most important pathogen known to the silk industry. Historical evidence from several countries shows that the outbreaks of pebrine disease have largely caused the decline of the sericulture industry.

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Cellular proteins and the mRNAs that encode them are key factors in oocyte and sperm development, and the mechanisms that regulate their translation and degradation play an important role during early embryogenesis. There is abundant evidence that expression of microRNAs (miRNAs) is crucial for embryo development and are highly involved in regulating translation during oocyte and early embryo development. MiRNAs are a group of short (18-24 nucleotides) non-coding RNA molecules that regulate post-transcriptional gene silencing.

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Characterization of spp. circulating in industrial dairy cattle farms in Iran: a field study 2016 - 2023.

Vet Res Forum

April 2024

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

Bovine brucellosis, an infectious disease transmitted by and , presents a significant zoonotic risk for agricultural economics and animal health. The primary objective of this study was to present a comprehensive understanding of the prevalence and features of strains within the industrial dairy farming sector in Iran. Rose Bengal plate test, standard agglutination test, and indirect enzyme linked immunosorbent assay tests were used to confirm all seropositive animals.

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Melatonin is a hormone mainly secreted by the pineal gland during the circadian cycle, with low levels during the daytime and prominent levels during the night. It is involved in numerous physiological functions including the immune system, circadian rhythm, reproduction, fertilization, and embryo development. In addition, melatonin exerts anti-inflammatory and antioxidant effects inside the body by scavenging reactive oxygen and reactive nitrogen species, increasing antioxidant defenses, and blocking the transcription factors of pro-inflammatory cytokines.

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Background: Human brucellosis is a neglected disease transmitted to humans from animals such as cattle, goats, dogs, and swine. The causative agents are bacteria of the genus , intracellular pathogens usually confined to the reproductive organs of their animal hosts causing sterility and abortions. The objective of the study was to determine the seroprevalence of brucellosis among women with spontaneous abortions (SAW) and compare this seroprevalence with that of healthy pregnant women (HPW).

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In this study, the Israeli acute paralysis virus (IAPV), a single-stranded RNA virus, was investigated in honey bee colonies, which had a history of mortality, population decline, and parasitic diseases. Samples (adult honey bees) were collected from 328 apiaries from three provinces (Tehran, Alborz, and Mazandaran) of Iran to detect IAPV. After sample preparation, RNA was extracted and cDNA was synthesized to perform the reverse transcription polymerase chain reaction (RT-PCR) method using a PCR primer pair, and a 185 bp fragment was amplified.

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The aim of this study was to evaluate the cholesterol lowering ability of Lactic Acid Bacteria (LAB) isolated from human breast milk under in vitro and in vivo conditions. Six LAB isolates namely 1A, 5A, , 3D, 1C, and 7A were examined for their bile resistance, bile salt hydrolase activity, cholesterol assimilation and viability in cholesterol rich; DeMan Rogosa and Sharpe broth, simulated gastric, small and upper intestinal conditions. During in vivo experiments, two putative LAB isolates were orally gavage to BALB/c mice, fed with normal basal and cholesterol rich (HCD) diets, daily for a period of 4 weeks.

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Equine brucellosis significantly impacts the health and functionality of horses, leading to complications such as bursitis infection, septic tenosynovitis, septic arthritis, and non-specific lameness resulting from joint infections. In the present study, we used the Rose Bengal plate agglutination test (RBPT), serum agglutination test (SAT), and the 2-mercaptoethanol (2-ME) assays to find equine brucellosis. From June 2018 to September 2022, 876 blood samples were randomly taken from apparently healthy racing horses in certain parts of Iran, such as Kerman, Isfahan, Tehran, Qom, and Kurdistan.

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The objective of this study was to genotype Mycobacterium tuberculosis complex isolated from humans and cattle in northern Iran. Over the course of one year, a total of 120 human and 21 cattle isolates were tested using region of difference (RD)-based polymerase chain reaction (PCR) and mycobacterial interspersed repetitive unites-variable number tandem repeats (MIRU-VNTR). In M.

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Brucellosis is known as one of the most common zoonotic diseases worldwide affecting both livestock and humans. It causes abortions, reduces milk production, and infertility in infected animals. The disease is routinely diagnosed through three serological techniques, such as rose bengal plate test (RBPT), standard agglutination test (SAT), and indirect enzyme-linked immunosorbent assay (I-ELISA).

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Article Synopsis
  • - Brucellosis, a widespread zoonotic disease in Iran, shows significant antimicrobial resistance (AMR) among isolates from humans and animals, raising health concerns.
  • - The study identified common Brucella species in various animal hosts and found resistance patterns to certain antibiotics, but whole genome sequencing (WGS) did not reveal classical AMR genes.
  • - Despite being susceptible to most antibiotics, the lack of identified classical AMR genes in resistant strains suggests a need for further investigation into resistance mechanisms at the protein and RNA levels.
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Article Synopsis
  • * A study analyzed 40 strains of Brucella collected from animals and humans across 13 Iranian provinces (2015-2020) using advanced genome sequencing techniques to understand their genetic relationships and origins.
  • * Findings showed that Iranian strains are related to American and Mediterranean lineages, with notable similarities to strains from neighboring countries, emphasizing the need for targeted brucellosis control measures through a One-Health approach.
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A comprehensive meta-analysis of Brucella infections in aquatic mammals.

Vet Ital

December 2022

Department of Arctic and Marine Biology; Faculty of Biosciences, Fisheries and Economics, UiT - The Arctic University of Norway; Tromsø, Norway. .

The presence of Brucella infections was documented in a large number of aquatic mammals, affecting wild animals living in oceans, seas, lakes and rivers within both northern and southern hemispheres. Through meta‑regression analysis, this study provides acom prehensive view of the prevalence of Brucella spp. in aquatic mammals, identifying risksu bgroups as well as most common sampling and testing methods.

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This study evaluated distribution of virulence factors and antibiotic resistance in clinical isolates of Salmonella enteritidis and Salmonella typhimurium in three cities of Iran. Altogether 48 S. enteritidis and S.

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Genetic Polymorphisms in MicroRNA-196a2 and the Risk of Human Abortion Related to Mycoplasma hominis.

Curr Microbiol

September 2022

Razi Vaccine and Serum Research Institute (RVSRI), Agricultural Research, Education and Extension Organization (AREEO), Beheshti Street, Karaj, 31976-19751, Iran.

Mutations in some miRNAs are associated with human recurrent pregnancy loss (RPL). In parallel, Mycoplasma spp. are one of the most common infections in pregnant women.

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Gamma (γ)-radiation can target viral genome replication and preserve viral structural proteins compared to formalin inactivation. Thus, a stronger immunity could be induced after the inoculation of the irradiated virus. In this study, γ-irradiated low-pathogenic avian influenza virus-H9N2 (LPAIV-H9N2) was used to immunize the broiler chicken in two formulations, including γ-irradiated LPAIV-H9N2 with 20% Trehalose intranasally (IVT.

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Purpose: Pebrine as the most dangerous disease of silkworm mostly caused by Nosema species has caused huge economic losses. There is no information on the species and the genomic sequences of the pebrine-causing microsporidia in Iran.

Methods: In the present research, we tried to determine the sequences of two regions of rDNA using molecular methods.

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