Publications by authors named "Muhammet Karakavuk"

Toxoplasma gondii is one of the main pathogens causing abortion in sheep. In this study, an in house ELISA using recombinant GRA1 and BAG1 proteins as antigen was used to detect T. gondii infection in a flock of sheep suffering from abortions.

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Toxoplasma gondii is an apicomplexan parasite infecting all mammals including humans and causes toxoplasmosis. There is no vaccine available for humans and thus vaccine development efforts continue using novel antigens and/or vaccine platforms. Since our previous microarray screening study showed that ROP6 is a suitable antigen to be used in vaccine studies, in this study, we aimed to design an optimized mRNA construct encoding the ROP6 protein and then demonstrate its efficiency and immunogenicity using in vitro methods.

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Monkeypox virus (MPXV) belonging to poxviridae family causes chronic viral disease in various mammals including human and monkeys. Conventional vaccines developed against smallpox of poxviridae, are not specific against Mpox. Also, they can cause various side effects after vaccination.

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Maedi Visna Virus (MVV) is a retrovirus that can infect sheep. There is still no effective therapy or vaccine against this virus and timely diagnosis is important to combat the complications of the disease. In this study, we aimed to develop an ELISA using peptides derived from gag protein as antigen.

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Background: Enterocytozoon bieneusi is the most common species found in humans. Although E. bieneusi has been investigated in humans, genotype profile of E.

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Toxoplasma gondii is an obligate intracellular parasite that can infect a variety of mammals including humans and causes toxoplasmosis. Unfortunately, a protective and safe vaccine against toxoplasmosis hasn't been developed yet. In this study, we developed a DNA vaccine encoding the SRS13 protein and immunized BALB/c mice thrice with pVAX1-SRS13 through the intramuscular route (IM) or intradermally using an electroporation device (ID + EP).

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Severe acute respiratory syndrome coronavirus 2 had devastating consequences for human health. Despite the introduction of several vaccines, COVID-19 continues to pose a serious health risk due to emerging variants of concern. DNA vaccines gained importance during the pandemic due to their advantages such as induction of both arms of immune response, rapid development, stability, and safety profiles.

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Purpose: Toxoplasma gondii is an obligate intracellular zoonotic parasite that can infect all warm-blooded animals, including humans. Currently, clinical findings of toxoplasmosis are being related to T. gondii strains such as Type I genotype may cause high pathogenicity and Type II genotype causes a milder clinical presentation.

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Background: Cryptosporidiosis is a disease that causes major intestinal damage in humans and animals. The causative agents of the disease are Cryptosporidium species. In newborn calves, diarrhea can lead to death, resulting in significant economic losses for the farms.

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Tick-borne pathogens increasingly threaten animal and human health as well as cause great economic loss in the livestock industry. Among these pathogens, Anaplasma ovis causing a decrease in meat and milk yield is frequently detected in sheep in many countries including Turkey. This study aimed to reveal potential vaccine candidate epitopes in Msp4 protein using sequence data from Anaplasma ovis isolates and then to design a multi-epitope protein to be used in vaccine formulations against Anaplasma ovis.

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Background: Bartonella henselae is one of the most commonly identified Bartonella species associated with several human diseases. Although B. henselae was detected in humans and cats in Turkey, they have not been genotyped previously.

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Objective: , one of the free-living amoeba, has been detected in many environmental samples, mainly in water, soil and air. keratitis and granulomatous amoebic encephalitis are among the most important clinical manifestations caused by . In this study, it was aimed to determine the sensitivity of the rapid loop mediated isothermal amplification (LAMP) test designed with primers specific to 18S rRNA gene to detect more rapidly the presence of in clinical and environmental samples.

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The phylum Microsporidia includes obligate intracellular parasites that can infect humans and various animals. To date, 17 different species within the phylum have been reported to infect humans. Among them, Enterocytozoon bieneusi (E.

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Article Synopsis
  • Cytokine storm significantly contributes to deaths in COVID-19 patients, prompting research into therapies like recombinant interferon lambda 1 (IFN-λ1) to prevent severe cases.
  • A recent study analyzed serum samples from 208 hospitalized COVID-19 patients, revealing that low levels of IFN-λ1 and high levels of IL-6 are linked to clinical severity, while increasing anti-S1 IgG antibodies indicate potential recovery.
  • Monitoring levels of IFN-λ1, IL-6, and antibodies in severe cases, especially in intensive care, can improve treatment management and help identify patients ready for discharge.
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Hepatozoon spp. are an apicomplexan protozoan parasites that infect vertebrates including mammals, marsupials, birds, reptiles, and amphibians. Among Hepatozoon species, H.

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Toxoplasma gondii is a protozoan parasite that may infect many mammals including humans. Cats are one of the main sources of infection for humans. Therefore, routine screening of cats with tests that are inexpensive, rapid, and do not require sophisticated laboratory equipment is important.

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The phylum Microsporidia contains obligate single celled parasites that can infect many vertebrate hosts including humans. Enterocytozoon bieneusi is considered as the most diagnosed species in humans. E.

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() that can infect most warm-blooded animals and humans, is an obligate intracellular apicomplexan parasite with a wide host range. About one-third of the world's population is infected with this parasite. While toxoplasmosis progresses asymptomatically in individuals with a strong immune system, it can cause serious clinical manifestations and death in immunocompromised individuals.

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The cat flea "Ctenocephalides felis" has veterinary and medical importance since it is a vector for numerous important pathogens. In this study, a total of 249 flea samples were collected from goats bred in eight different farms (located in İzmir and Şanlıurfa provinces of Turkey) and morphologically identified under microscopy. Later, the genetic diversity was investigated in 117 of C.

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Toxoplasmosis is a global health problem affecting both human and animal populations. The lack of effective treatment makes the development of a vaccine against toxoplasmosis one of the main goals in the management of this disease. In our study, vaccine formulations containing the multistage recombinant antigens, rBAG1 + rGRA1 were developed with a combined adjuvant system consisting of chitosan and Salmonella Typhi porins in micro (MicroAS) and nanoparticulate (NanoAS) forms.

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() is an obligate intracellular parasite that can infect almost all warm-blooded animals, including humans, and one-third of the global population is thought to be infected with this parasite. Infection can occur through consumption of contaminated food, contact with an infected host, or congenital transmission. While toxoplasmosis is asemptomatic in people with a healthy immune system, it can cause severe infections in people with a suppressed immune system or with immunodeficiency.

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Background: Bartonella spp. are vector-borne pathogens that cause zoonotic infections in humans. One of the most well-known of these is cat-scratch disease caused by Bartonella henselae and Bartonella clarridgeiae, with cats being the major reservoir for these two bacteria.

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Blastocystis sp. is a common enteric protist found in humans and many other animals. Although the clinical relevance of Blastocystis sp.

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Close contact with infected animals is one of the main risk factors for zoonotic transmission of enteric protozoan parasite Blastocystis and thus, several animal species are being screened for the detection of the zoonotic subtypes. For this purpose, 22 fecal samples were collected from healthy cattle aged > 2 months and 39 fecal samples were also collected from cattle (aged <2 months) which are treated with TMP-SMX due to diarrhea. Later, Blastocystis sp.

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Article Synopsis
  • Breast cancer was the most common cancer globally in 2020, with HER2 overexpression affecting 20-30% of patients, highlighting the need for novel treatments due to frequent resistance to current therapies.
  • Researchers developed a promising DNA vaccine, pScFvDEC-MeHer2, which combines HER2 antigens and a specific antibody fragment to better target immune cells, aiming to generate a stronger, long-lasting immune response.
  • In trials, mice immunized with the pScFvDEC-MeHer2 vaccine exhibited significantly higher levels of specific immune responses, including IgG and IFN-γ, suggesting its potential as an effective treatment against HER2-positive breast cancer.
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