Iranian Journal of Parasitology

Current and Emerging Techniques for Diagnosis of Toxoplasmosis in Pregnancy: A Narrative Review
Teimouri A, Mahmoudi S, Behkar A, Sahebi K, Foroozand H, Hassanpour G and Keshavarz H
is an intracellular parasite capable of crossing the placenta in pregnancy and infecting the developing fetus, leading to various congenital anomalies and even abortion. Acute infection is responsible for almost all cases of congenital toxoplasmosis in immunocompetent pregnant women. Prenatal screening for acute toxoplasmosis primarily involves maternal serology and fetal ultrasound imaging. When serological or ultrasound findings suggest acute infection, further diagnostic tests are necessary to confirm fetal infection. Currently, molecular methods to detect the parasite's DNA, including polymerase chain reaction-based methods, on amniotic fluid are the gold standard tests for the diagnosis of congenital toxoplasmosis. In this review, we aim to discuss various aspects of screening and diagnostic methods for toxoplasmosis in pregnancy, including (i) current serological assays, screening approaches, and future perspectives; (ii) the role of imaging techniques, with an emphasis on ultrasound; (iii) principles and recent advances in diagnostic molecular methods; (iv) emerging techniques, such as point-of-care-based tests and biosensors, and microRNAs as novel biomarkers of acute infection; and (v) an overview of screening programs in different countries, important epidemiological determinants, and recommendations for screening health policies.
Molecular Diagnosis of Endosymbiont in -Positive Samples in Laboratory Conditions and in the Hospital Environments
Mohammadi A, Dalimi A, Ghafarifar F, Pirestani M and Akbari M
We aimed to identity endosymbiont in -positive samples in natural and laboratory conditions.
Acute Kidney Failure Confused with Thrombocytopenic Thrombocytic Purpura in Malaria: A Case Report
Gurkaynak P, Gocen NY and Yanık AM
Malaria has become widespread, especially in sub-Saharan Africa, owing to disruptions experienced during the Covid-19 pandemic. Both cerebral malaria and acute kidney injury are important indicators of severe malaria. Depending on the degree of acute renal failure, hemodialysis/hemofiltration treatment is required. Our patient was a 22-year-old male from the Republic of Chad. The patient with confusion came to our country 15 days prior and was admitted to the internal medicine intensive care unit. Initially, Thrombocytopenic Thrombocytic Purpura (TTP) was considered because of clinical and laboratory similarities. As the patient had a history of coming from an endemic area, anemia, thrombocytopenia, and splenomegaly, malaria was considered. The patient was diagnosed with malaria due to the presence of multiple ring-shaped trophozoites and banana gametocytes. The patient with cerebral malaria, hyperparasitemia (parasite load 15%), hyperbilirubinemia and acute kidney injury was considered to have severe malaria. Intravenous artesunate was planned, but since it could not be obtained immediately, oral artemether+lumefantrine was started, and the patient became conscious at the 24th hour of treatment. During the follow-up, the patient's creatinine levels increased to 6.9, and the patient was subjected to hemodialysis several times. After effective hemodialysis and antimalarial treatment, the patient was discharged without sequelae on the 20th day of hospitalization. This case report is thought to be important in that it emphasizes that the diagnosis of malaria may be delayed due to its confusion with microangiopathic hemolytic anemias, and that it emphasizes the importance of correct management of complications.
Genetic Diversity of with Attention to Clinical Features in Patients Originated from Three Endemic Provinces in the North and South of Iran
Semnan S, Kia EB, Sharifdini M, Darabi E and Fakhrieh-Kashan Z
is one of the neglected tropical diseases. We aimed to verify the genetic diversity of with attention to clinical features of the infection in patients using the 1 gene and DNA sequencing.
The Prevalence of Infection with Gastrointestinal Helminths in Free-Range Poultry of Zabol, Iran
Sadeghi F, Lotfalizadeh N, Khedri J and Borji H
As an ecological and ethical method employed for poultry farming, free-range chicken keeping is growing and is important in fostering rural farmers' livelihoods and community prosperity. This study aimed to determine the nature and prevalence of helminth infections in native poultry in Zabol, Iran.
Single Nucleotide Polymorphism of IL-18 (Rs 1946519) in Recurrent Aborted Iraqi Women and Its Association with Toxoplasmosis
Fadhil SH and Saheb EJ
We aimed to shed light on the risks of elevated levels of IL-18 in aborted women with toxoplasmosis by evaluating the risk or protective function of alleles or genotypes for single nucleotide polymorphism (SNP) of IL-18 (rs 1946519), which might be related to the susceptibility to toxoplasmosis.
Molecular Detection and Characterization of spp. in Cattle in Nigeria
Banwo O, Jeremiah O, Adesina R, Adeyemo A and Fagbohun O
Haemonchosis is a major parasitic infestation in ruminant livestock, causing significant economic losses annually. The causative organisms are helminths of the genus spp. Detection of the causative agent is important for effective management and control of the disease. Molecular detection and characterization of parasites is a very dependable approach for parasite identification, especially where morphological characterization is unreliable.
Prevalence and Clinical Aspects of Infection among High-Risk Women in Karaj, Iran
Bairami A, Kabir K, Abbasi Alaei B, Bahadory S and Rezaeian M
Trichomoniasis is a common sexually transmitted infection (STI) caused by the protozoan which causes health and emotional damages to the sufferers annually. We aimed to investigate the prevalence of and its related risk factors among the high-risk women in the city of Karaj, central Iran.
Response Comment on "A New Immunogenic Structure of Polyepitopic Fusion against : In Silico Study"
Pirmoradi S, Darvish Khadem M, Monjezi Z, Bahrami S and Nzelu CO
Lung Cyst Hydatid Extracted via Bronchoscopy and the Necessity of Surgery: A Case Report
Karcioglu O, Kara A, Kurtulan O, Uysal S and Selçuk ZT
remains a global public health issue. Although predominantly affecting the liver, the lungs are the second most affected organ and often undergo surgical intervention. Here, a case managed by bronchoscopy and medical therapy is presented. A 26-year-old woman was presented with a cough, hemoptysis, and a 5 kg weight loss in the last two months. Chest imaging identified a 4 cm centrally cystic mass lesion in the middle lobe of the right lung, which was suspicious of lung cancer. Bronchoscopy revealed a whitish, plastic-like object that was difficult to extricate and obstructed the middle lobe bronchus. We removed the material and purulent secretions covering it and opened the middle lobe bronchus totally. The histopathological study verified its consistency with hydatid cyst. There was no evidence of a hydatid cyst on computerized thomography after bronchoscopy. The lesion in the left lobe of the liver, confirmed to be suggestive of a hydatid cyst via ultrasonography, was treated using the PAIR technique. We administered oral albendazole to continue the treatment. It may be a reasonable approach to postpone surgery in order to preserve lung tissue in patients who have undergone complete removal of hydatid cyst material via bronchoscope.
The Molecular Detection and Therapeutic Management of Pathogenic Infection in a Goat: A Case Report
Arif SA, Lahkar D, Gogoi SM, Changkija B, Kakati P, Buragohain L, Pathak M and Das T
A 2-year-old female Assam Hill goat was presented with a clinical history of anorexia, fever, mild anemia, rough body coat, dehydration, tachycardia, dyspnea and swelling of palpable lymph nodes. Hematology revealed low hemoglobin, packed cell volume, red blood cell and thrombocyte count. Biochemical analysis showed increased serum concentration of alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine and urea in comparison to the normal reference range. Microscopic examination showed intra-erythrocytic forms of Theileria species. Molecular and phylogenetic analysis of partial 18S rRNA gene sequence confirmed Theileria luwenshuni infection. The goat was treated with buparvaquone and oxytetracycline and recovered uneventfully. A three-month follow-up showed no recurrence. This study reveals the presence of T. luwenshuni in Assam, India and it should be considered in differential diagnosis and as one of the important pathogens of clinically sick goats. The present case report provides a rational approach to diagnosis and treatment for a goat infected with pathogenic T. luwenshuni in Assam, India. To our knowledge, the present communication describes about the first successful therapeutic management of pathogenic T. luwenshuni infection in a goat supported with molecular evidence from Assam, a north-eastern state of India.
Coexistence of Giant Hydatid Cyst and Hepatocellular Carcinoma: A Case Report and Literature Review
Birol IE, Toprak SS and Gurel F
From a global perspective, hepatocellular carcinoma (HCC) and hydatid cyst disease are both common; however, the endemic and zoonotic nature of hydatid cysts (due to larvae) makes the simultaneous detection of the two conditions a rare occurrence. In this case report, in a 43-year-old male patient, we aim to draw attention to the potential coexistence of HCC and liver hydatid cysts by presenting a case in which HCC tissue was detected in the cyst wall-removed by emergency surgery due to cyst perforation. Hydatid lesions in the liver may exhibit tumor-like growth characteristics. Consequently, identifying a hydatid cyst concomitant with HCC can be challenging, particularly when HCC has developed within the cystic structure. Careful assessment of resected tissues and detailed diagnostic approaches can facilitate the identification of such cases, even if the risk of HCC in patients with hydatid cysts is marginal. It may be advisable to suggest periodic monitoring with HCC-related markers and liver imaging methods.
Survival of and in Experimentally Infected Wild Boar Muscle Tissue under Freezing and Environmental Conditions
Bessi C, Ercole ME, Fariña FA, Montalvo F, Fassa V, Acerbo M, Ribicich MM and Pasqualetti MI
The aim of this study was to investigate the survival of and in decaying wild boar tissue and assess their freezing tolerance in experimentally infected animals.
Molecular Tracking of in an Archived Spleen Sample in Iran: A Case Report
Allahmoradi M, Najafi F, Koosha M, Kazemirad E, Latifi A, Naddaf SR, Mirjalali H, Mohebali M, Hajjaran H, Otranto D and Mowlavi G
Rodents are the primary reservoir hosts for zoonotic cutaneous leishmaniasis (ZCL) caused by . Knowing reservoir hosts is crucial for leishmaniasis surveillance and control programs in endemic areas. In this study, we examined an archived spleen of obtained during a pest control program in 2000 in Tehran, the capital of Iran. The sample was analyzed using polymerase chain reaction (PCR) and sequencing to determine the presence of Trypanosomatidae based on the internal transcribed spacer () 1 gene. Amplification and sequencing of the discriminative region of the gene followed by BLAST analysis showed the highest similarity with isolates. Also, the phylogenetic analysis revealed that our sample was grouped with isolates retrieved from the GenBank database. This finding might support the claim that acts as a potential reservoir host for . Further studies, including a survey on more rodent samples as well as studying sandflies in the area, might uncover the possible presence of such pathobiological conditions in ZCL transmission in urban and suburban settings.
Comment on "A New Immunogenic Structure of Polyepitopic Fusion against : In Silico Study"
Majidiani H and Hosseini SA
Properties of Compounds Citral and Geraniol on : Activity in Vitro and Cytotoxicity
Baccega B, Fenalti JM, de Mello AB, Islabão YW, Birmann PT, Neis A, de Giacometi M, Monteiro FL, de Oliveira Hubner S, de Almeida Vaucher R, Farias NADR, Norouzi R, Siyadatpanah A and Oliveira CB
Avian trichomoniasis is an important disease that causes bird mortality, both wild and captive, around the world. This study evaluated the in vitro cytotoxicity, antioxidant, and antiparasitic activity of citral (3.7-Dimetil-2.6-octadienal) and geraniol (trans-3.7-Dimetil-2.6-octadien-1-ol) against trophozoites.
Modulation of 8-Oxoguanine DNA Glycosylase 1 (OGG1) Alleviated Anemia Severity and Excessive Cytokines Release during Malaria in Mice
Samaila A, Basir R, Abdul Aziz NAL, Alarabei AA, Gambo ML, Abdullah MA, Hussain MK, Nordin N and Majid RA
The interplay of OGG1, 8-Oxoguanine, and oxidative stress triggers the exaggerated release of cytokines during malaria, which worsens the outcome of the disease. We aimed to investigate the involvement of OGG1 in malaria and assess the effect of modulating its activity on the cytokine environment and anemia during malaria in mice.
Feeding Behavior and Detection in , a Malaria Vector in District Khyber, Khyber Pakhtunkhwa, Pakistan
Arif M, Rasheed SB, Ullah H, Shah TA, Rehman FU and Dawoud TM
is a significant malaria vector in Pakistan, and understanding its feeding behavior is necessary to control the spread of malaria. However, limited information is available on the host preferences of in Pakistan. Therefore, we aimed to explore the feeding behavior of , a malaria vector, in the District Khyber, Khyber Pakhtunkhwa, Pakistan.
Evaluation of a 70 kDa Excreted/Secreted Coproantigen Immunoassay for the Detection of in Dogs
González-Morales AC, Molina-Garza ZJ, Gomez-Flores R, Zárate-Ramos JJ and Galaviz-Silva L
We aimed to develop a sandwich ELISA, using polyclonal antibodies against excretory/secretory (E/S) antigens specific to coproantigens present in -positive dogs.
PUF Proteins as Critical RNA-Binding Proteins in TriTryp Parasites: A Review Article
Taheri T, Davarpanah E, Samimi-Rad K and Seyed N
In eukaryotes, translation is a fundamental step in the long pathway of protein synthesis within the cell. In this process, several proteins and factors have involved directly or indirectly, individually or in association with other elements to contact mRNA. For perfect translation, many essential modifications should be done, such as cis-splicing to remove introns and two main events for capping and poly A polymerization in 5' and 3' end of mRNA, respectively. Gene expression is then regulated at both translation and stability of the target mRNA molecule levels. Pumilio/FBFs (PUFs) are the main group of RNA-binding proteins which bind to the 3'-UTR of target RNA and thereby regulate the fate, stability and subcellular localization of mRNAs and adjust the translated protein level. PUF proteins have been found both in nucleus where that bind to precursor mRNA, for processing and maturation of rRNA, and in cytoplasm where that bind to mRNA, stall the ribosomes, suppress the translation and localization of the mRNA. They can regulate the expression of mRNAs through activation or suppression of translation. Therefore, these proteins have recently garnered much attention as new generation of therapeutic targets against diseases such as cancer and neurological disorders. In comparison to other eukaryotes, trypanosomatids have a high number of PUF proteins, which function not only as gene expression regulatory factors but also in several biological processes such as differentiation and life-cycle progression of the cells. Here, we review the molecular and biological roles of known PUF proteins in TriTryp parasites (, and ) beside some other parasites.
Diagnosed with Endoscopic Ultrasound and Treated with Endoscopic Retrograde Cholangio Pancreatography: A Case Report
Akkuzu MZ, Yavuz A, Ebik B, Karabulut Ü, Üzel A and Bacaksız F
This article discusses infection, a zoonotic parasite that lives in the liver bile ducts. A 31-year-old female patient was diagnosed with symptoms such as nausea, increased liver enzymes, and right upper quadrant pain for about a year. The parasite was detected in the common bile duct by Endoscopic Ultrasound (EUS) and removed by Endoscopic Retrograde Cholangio Pancreatography (ERCP). Treatment was performed with 10 mg/kg triclabendazole. Eosinophilia, abdominal pain, and dietary history are important clues in the diagnosis of infection. Imaging methods, especially EUS, play a critical role in diagnosis. With this method, parasites can be seen as mobile hyperechogenic structures. If untreated, parasites can survive in their hosts for many years, therefore early diagnosis and treatment are important in preventing complications. It is recommended to monitor the eosinophil levels and serological test results of patients after treatment. As a result, EUS is a very valuable diagnostic tool in suspected cases.