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Global prevalence of Neospora caninum in rodents: A systematic review and meta-analysis
No full textBackgroundNeosporosis has been considered a cause of abortion in dairy and beef cattle worldwide. Rodents are reservoir hosts for several infectious diseases. It is necessary to determine the prevalence of Neospora caninum in rodents to improve the current understanding of the transmission dynamics of Neospora as well as its life cycle and risk of transmission to livestock. Therefore, the objective of the present study was to estimate the pooled global prevalence of N. caninum in different rodent species. MethodsPublished studies on the prevalence of N. caninum in different rodent species were searched in the MEDLINE/PubMed, ScienceDirect, Web of Science, Scopus and Google Scholar and the reference lists of the retrieved articles until July 30, 2022. The eligible studies were selected using inclusion and exclusion criteria. The extracted data were verified and analysed using the random-effect meta-analysis. ResultFor this meta-analysis, a total of 4372 rodents from 26 eligible studies were included. The global prevalence of N. caninum in rodents was estimated at 5 (95 CI 2-9), with the highest prevalence in Asia (12; 95 CI 6-24) and lowest prevalence in America (3; 95 CI 1-14) and Europe (3; 95 CI 1-6). N. caninum was more prevalent in females (4; 95 CI 2-9) than in males (3; 95 CI 1-11). The most common diagnostic test was polymerase chain reaction (PCR) (21 studies). The pooled prevalence of N. caninum in rodents based on the diagnostic method was as follows: immunohistochemistry: 11 (95 CI 6-20), NAT: 5 (95 CI 4-7), IFAT: 5 (95 CI 2-13) and PCR: 3 (95 CI 1-9). ConclusionThe results of this study showed a relatively low but widespread prevalence of N. caninum infection in rodents
Dual application of Polyvinyl Alcohol Glutaraldehyde Methylthymol Blue Fricke hydrogel in clinical practice: Surface dosimeter and bolus
No full textAn essential issue is an accurate evaluation of surface dose distribution for such sensitive treatments. This work aimed to feasibility of the dual application of the Ferrous Polyvinyl Alcohol Glutaraldehyde Methylthymol Blue (PVA-GTA-MTB) gel as a bolus compensator and surface dosimeter in breast radiotherapy. The differences between the surface dose measured using PVA-GTA-MTB gel and film dosimetry in the medial and lateral parts of the breast were 3.74 and 4.18, respectively. A qualitative comparison of the isodose curves showed that the PVA-GTA-MTB bolus creates a uniform dose distribution similar to the superflab bolus in the target volume
Antimicrobial resistance among clinical Vibrio cholerae non-O1/non-O139 isolates: systematic review and meta-analysis Systematic Review and Meta-analysis
No full textNon-O1/non-O139 Vibrio cholerae (NOVC) are nonpathogenic or asymptomatic colonizers in humans, but they may be related to intestinal or extra-intestinal (severe wound infections or sepsis) infections in immunocompromised patients.The present study aimed to evaluate the weighted pooled resistance (WPR) rates in clinical NOVC isolates based on different years, areas, quality, antimicrobial susceptibility testing (AST), and resistance rates. We systematically searched the articles in PubMed, Scopus, and Embase (until January 2020). Data analyses were performed using the Stata software program (version 17). A total of 16 studies that had investigated 824 clinical NOVC isolates were included in the meta-analysis. The majority of the studies were conducted in Asia (n = 14) and followed by Africa (n = 2). The WPR rates were as follows: erythromycin 10, ciprofloxacin 5, cotrimoxazole 27, and tetracycline 13. There was an increase in resistance to ciprofloxacin, nalidixic acid, and gentamicin, norfloxacin during the period from 2000 to 2020. On the contrary, there was a decreased resistance to erythromycin, tetracycline, chloramphenicol, cotrimoxazole, ampicillin, streptomycin, kanamycin, and neomycin during the period from 2000 to 2020. The lowest resistance rate were related to gentamicin, kanamycin, ciprofloxacin, and chloramphenicol against NOVC strains. However, temporal changes in antimicrobial resistance rate were found in our study. We established continuous surveillance, careful appropriate AST, and limitations on improper antibiotic usage, which are essential, especially in low-income countries
Clinical efficacy of probiotics in prevention of infectious diseases among hospitalized patients in ICU and non-ICU wards in clinical randomized trials: A systematic review
No full textBackground and AimsThe present study aimed to review probiotics' clinical efficacy in preventing infectious diseases among hospitalized patients in ICU and non-ICU wards. MethodsA search of Medline, EMBASE, The Cochrane Library, Science Direct, Open Grey, and Google Scholar was conducted for eligible publications from 2002 to 2020 following the requirements outlined in the PRISMA guideline. The search strategy was based on the combination of the following terms: "probiotics," "prebiotics," "synbiotics," and "cross-infection." The logical operators "AND" (or the equivalent operator for the databases) and "OR" (e.g., probiotics OR prebiotics OR synbiotics) were used. ResultsThe results indicated that the probiotic consumption caused a significant reduction in antibiotic-associated diarrhea (AAD) and Clostridioides difficile infection (CDI) in 2/8 randomized clinical trials (RCTs) investigating AAD/CDI. Also, 5/12 clinical trials highlighted the considerable effects of probiotics on the reduction or prevention of ventilator associated pneumoniae (VAP), so the mean prevalence of VAP was lower in the probiotic group than in the placebo group. The total rate of nosocomial infections among preterm infants was nonsignificantly higher in the probiotic group compared to the control group. ConclusionThis systematic review shows that the administration of probiotics has moderate preventive or mitigating effects on the occurrence of VAP in ICU patients, CDI, AAD, and nosocomial infections among children. Consequently, applying antibiotics along with the proper probiotic species can be advantageous
The role of microRNA-185 in the pathogenesis of human diseases: A focus on cancer
No full textMicroRNAs (miRNAs) are a widely-studied class of non-coding RNAs characterized by their short length (18-25 nucleotides). The precise functions of miRNAs are not well-elucidated; however, an increasing number of studies suggest their involvement in various physiologic processes and deregulation in pathologic conditions. miRNA-185 (miR-185) is among the mostly-studied miRNAs in human diseases, which is found to play putative roles in conditions like metabolic disorders, asthma, frailty, schizophrenia, and hepatitis. Notably, many cancer studies report the downregulation of miR-185 in cell lines, tumor tissues, and plasma specimens of patients, while it demonstrates a suppressing role on the malignant properties of cancer cells in vitro and in vivo. Accordingly, miR-185 can be considered a tumor suppressor miRNA in human malignancies, while a few studies also report inconsistent findings. Being suggested as a prognostic/diagnostic biomarker, mi-185 is also found to offer clinical potentials, particularly for early diagnosis and prediction of the prognosis of cancer patients. In this review, we have outlined the studies that have evaluated the functions and clinical significance of miR-185 in different human diseases with a particular focus on cancer
Blood Coagulation Disorders Among the Iranian Population: a Systematic Review
No full textBackground: Blood coagulation disorders are one of the causes of mortality. Therefore, the study of coagulation disorders is also important. This systematic review was conducted to investigate blood coagulation disorders in the Iranian population. Methods: Searches in electronic databases such as Web of Science, PubMed, Scopus, SID, ProQuest, and Magiran from May 10, 1990 to May 10, 2019 were performed according to PRISMA guidelines. Cross-sectional, cohort, experimental, and case-control studies were included according to the inclusion criteria without gender and language restrictions. Results: After screening and selection, 14 studies were selected for data extraction. Accordingly, the most common blood coagulation disorder in the south of Iran was a defect in FXIII (599 of 1,165). C.559T>C (27 of 189) and c.562T>C (20 of 189) mutations had the highest frequency. The most common FXIII polymorphism among the Iranian Azerbaijanis was Val34Leu (203 of 410). The second most common coagulation disorder was FV Leiden (396 of 1,165). Then, c.1691G>A (151 of 396) was the most common mutation. Conclusions: This study shows that the most critical coagulation disorder among the Iranian population is FXIII deficiency and the most common mutation is c.562T>C. © 2023 Verlag Klinisches Labor GmbH. All rights reserved
Twin Pregnancy with one Fetus and a Concomitant Mole: A Case Report
No full textBackground and Aim: Gestational trophoblastic disease consists of a wide range of tumors related to the uterus, including complete and incomplete hydatidiform mole, placental trophoblastic tumor, and choriocarcinoma, which have different tendencies to local invasion and metastasis. In this study, we report a case of twin pregnancy with one fetus and a concomitant mole in a 40-year-old woman. Case report: A 40-year-old woman at 17-week of pregnancy referred with complaints of shortness of breath, headache and high blood pressure. Fetal heart rate was 110. According to the ultrasound of the fetus, the size of the placenta was much larger than normal and had cystic areas. The patient was diagnosed as a case of twin pregnancy with one fetus and a concomitant mole. Emergency hysterotomy was performed. The patient was discharged from the hospital after one week in good general condition and recommended to check weekly βHCG titer test and control blood pressure. conclusion: Molar pregnancy is diagnosed by abdominal ultrasound and serum βHCG measurement. Considering pregnancy complications such as gestational hypertension and metabolic disorders such as hyperthyroidism and bleeding which can increase after such pregnancies, early diagnosis and treatment are essential to reducing maternal mortality. In addition, after termination of such pregnancies, examination of the patients for early detection of trophoblastic tumors is very important. © 2018 the Author (s)
Assessment of genetic markers for multilocus sequence typing (MLST) of Fasciola isolates from Iran
No full textBackground Several markers have been described to characterise the population structure and genetic diversity of Fasciola species (Fasciola hepatica (F. hepatica) and Fasciola gigantica (F. gigantica). However, sequence analysis of a single genomic locus cannot provide sufficient resolution for the genetic diversity of the Fasciola parasite whose genomes are similar to 1.3 GB in size. Objectives To gain a better understanding of the gene diversity of Fasciola isolates from western Iran and to identify the most informative markers as candidates for epidemiological studies, five housekeeping genes were evaluated using a multilocus sequence typing (MLST) approach. Methods MLST analysis was developed based on five genes (ND1, Pepck, Pold, Cyt b and HSP70) after genomic DNA extraction, amplification and sequencing. Nucleotide diversity and phylogeny analysis were conducted on both concatenated MLST loci and each individual locus. A median joining haplotype network was created to examine the haplotypes relationship among Fasciola isolates. Results Thirty-three Fasciola isolates (19 F. hepatica and 14 F. gigantica) were included in the study. A total of 2971 bp was analysed for each isolate and 31 sequence types (STs) were identified among the 33 isolates (19 for F. hepatica and 14 for F. gigantica isolates). The STs produced 44 and 42 polymorphic sites and 17 and 14 haplotypes for F. hepatica and F. gigantica, respectively. Haplotype diversity was 0.982 +/- 0.026 and 1.000 +/- 0.027 and nucleotide diversity was 0.00200 and 0.00353 +/- 0.00088 for F. hepatica and F. gigantica, respectively. There was a high degree of genetic diversity with a Simpson's index of diversity of 0.98 and 1 for F. hepatica and F. gigantica, respectively. While HSP70 and Pold haplotypes from Fasciola species were separated by one to three mutational steps, the haplotype networks of ND1 and Cyt b were more complex and numerous mutational steps were found, likely due to recombination. Conclusions Although HSP70 and Pold genes from F. gigantica were invariant over the entire region of sequence coverage, MLST was useful for investigating the phylogenetic relationship of Fasciola species. The present study also provided insight into markers more suitable for phylogenetic studies and the genetic structure of Fasciola parasites
Circular RNAs and tuberculosis infection
No full textTuberculosis (TB) is a deadly infectious disease caused by Mycobacterium tuberculosis (Mtb) that affects the im-mune system chronically. Therefore, effective control and treatment of tuberculosis requires rapid and accurate diagnostic strategies. Tuberculosis has always been a global burden on health, social and economic systems due to the lack of standard curative and diagnostic (bio)markers. Accordingly, the management and monitoring of patients with active TB at the primary care level may be possible through new, rapid and cost-effective non -sputum-based diagnostic procedures. Biomarkers can help diagnose various diseases, including circular RNA (circRNA), which has recently been introduced as an endogenous, abundant and stable RNA in the cytoplasm with unique tissue specificity. There are frequent reports of circRNA involvement in many pathological and physiological processes in human beings. Recent studies have highlighted the presence of circRNAs in serum and their role as promising biomarkers in the diagnosis of the disease, potentially due to the continuous, stable, closed covalent circular structures and lack of easy degradation by nucleases. The purpose of this review article is to scrutinize the behavior of circulating plasma RNAs in relation to the pathogenesis and diagnosis of tuberculosis
Temporal Trend and Spatial Distribution of Drug Poisoning in Semnan Province: A Retrospective Longitudinal Study
No full textBackground: Substance abuse and the risks of its consequences are the major public health problems in the world and Iran. Objectives: The objective of the present study is determination the epidemiological status and spatial distribution of high-risk and low-risk clusters along with estimating the relative risk of drug poisoning in Semnan in 8 years. Methods: A descriptive-analytical and retrospective longitudinal study was conducted that examined all 3360 poisoned patients who referred to the hospitals of Semnan province from 2011-2018. The total number of visits was received and analyzed by year with the relevant diagnostic code in ICD-10 from hospitals of the province, and data were analyzed using Joinpoint regression analysis, global Moran’s index and Kuldorff’s spatial statistic scan at a significant level of 0.05. Results: The number of clients varied from 219 in 2011 to 570 in 2015. The patients’ mean age was 26.7 years. The average annual number of cases per one hundred thousand individuals (annual cases/100000) was 598.4. The AAPC of the incidence of drug poisoning was 9.8 and significant in the whole province, demonstrating that the incidence of poisoning increased by an average of 9.8 per year in the whole province from 2011 to 2018. Semnan County with LLR = 533.07 was the most likely low-risk cluster, and Shahroud County was the most likely high-risk cluster with LLR = 219.94. Conclusions: Drug policies need to be adapted to the geographical differences in the place death. After clustering regions in poisoning incidents, the necessary interventions can be concentrated for these specific geographical locations. © 2022, Author(s)