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Background Globally, congenital toxoplasmosis remains a significant cause of morbidity and mortality, and outbreaks of T. gondii infection represent a major public health threat, especially in developing countries. Evidence in the literature indicates that only a few studies have been conducted on the incidence of maternal and congenital toxoplasmosis in Saudi Arabia. This prospective study aims to measure the overall incidence of congenital toxoplasmosis, both patent and ‘silent’ infection, among pregnant women in the Eastern Province of Saudi Arabia. The study would attempt to relate the cord blood results with the time of seroconversion in the mother, underlining the importance of early intervention in such cases. Methods Five hundred paired maternal/cord blood samples were tested for anti-Toxoplasma IgG or IgM antibodies. Samples were collected during delivery from mother and newborn (cord blood) from November 2011 to May 2012. Only positive for anti-Toxoplasma IgG or/and IgM cord blood was processed for real-time PCR for confirmation. The age of mothers ranged from 16 to 45 years. Results The sample subjects were tested during child delivery for specific IgG and IgM antibodies against Toxoplasmosis, of which 21.0% (n = 105) mother/baby pairs were found serologically positive for anti-Toxoplasma IgG antibodies. The rate of maternal seropositivity for anti-Toxoplasma IgM antibodies was found among 4 participants (0.8%), who were also seropositive for anti-Toxoplasma IgG antibodies. None of the children tested positive for anti-Toxoplasma IgM antibodies, even those born to mothers with IgM positive. All 105 cord blood tests in the study sample were confirmed negative by real-time PCR. The seroprevalence of Toxoplasma IgG antibodies increased with maternal age, parity, and was significantly higher in women who gave birth to children with congenital anomalies (p = 0.008). Conclusion The findings of the current study indicate a dire need to develop and implement preventive programs against Toxoplasma gondii infection, as well as a health education program on how to avoid toxoplasmosis for all seronegative women during pregnancy.

The COVID-19 pandemic caused by SARS-CoV-2 has resulted in millions of cases and hundreds of thousands of deaths. Beyond there being no available antiviral therapy, stimulating protective immunity by vaccines is the best option for managing future infections. Development of a vaccine for a novel virus is a challenging effort that may take several years to accomplish. This mini-review summarizes the immunopathological responses to SARS-CoV-2 infection and discusses advances in the development of vaccines and immunotherapeutics for COVID-19.

Gastric Cancer is a heterogeneous, multifactorial, aggressive disease that has been and still remains one of the most common causes of cancer-related death and a major public health issue worldwide. Currently, gastric cancer shows decreasing trends in its incidence and mortality in some geographic areas; however the disease still shows poor prognosis and remains difficult to cure. The prognosis for patients with gastric cancer depends on the stage at which the gastric cancer is detected, and complete excision of the cancer is the only proven curative option. However, recently the treatment of gastric cancer has been rapidly evolving with the emergence of new cytotoxic drugs and molecular targeted agents that show promising response rate and disease progression-free survival. Cancer prevention intervention such as screening to ensure early detection, population health education, anti-cancer knowledge popularization, identification and correction of unhealthy lifestyles has demonstrated to be effective; and improved treatment modalities can dramatically increase the poor prognosis for patients with gastric cancer. Demographic, ecological, environmental, culture, and genetic variables all contribute to the heterogeneity of gastric cancer; however, environmental risk factors play an important role throughout all the stages of the disease progression, management and surveillance. In this review, we address the role of important environmental risk factors in the onset of gastric cancer, and highlight the current treatments modalities and prevention measures for gastric cancer.

Background: Low back pain (LBP) is a complex condition with several determinants contributing to its occurrence. LBP is defined as pain that persists for 12 weeks or longer. The prevalence of work-related LBP among health-care personnel in Saudi Arabia affects both the healthcare personnel and the quality of patient care. Aim: The aim of this study was to review the epidemiology of LBP among the healthcare personnel in Saudi Arabia and wellness programs aimed at decreasing the rate of LBP. Methods: A systematic literature search was conducted using relevant keywords to search for studies conducted in Saudi Arabia regarding LBP among healthcare personnel. After selecting the inclusion criteria and epidemiological measures of LBP for the current research as well as obtaining full texts for the study, a total of 13 articles were used. Results: Thirteen studies were included in the current systematic review. Nurses and dentists were among the most vulnerable groups, constantly experiencing LBP due to long working hours, standing, as well as stress. Physical and occupational therapists and surgeons were experiencing LBP and generalized myalgia due to the work stress caused by the overcommitment at work and a high number of treated patients. Emergency medical services personnel reported a very high prevalence of musculoskeletal disorders. Based on the results of the reviewed studies, most of the participants experienced the prevalence of the LBP within the last 12 months. Conclusion: LBP has multifactorial risks, etiology, and increased evidence and prevalence among healthcare personnel in Saudi Arabia. The results show that there is good reason to conduct an in-depth study of available best practice interventions aimed at preventing LBP among healthcare personnel. Future studies in Saudi Arabia should focus on creating workplace wellness programs and on assessing risk factors as well as preventing LBP.

BackgroundWorldwide, most of educational institutions have moved to online electronic learning methods because of the COVID-19 pandemic. On March 8, 2020, the Saudi Ministry of Education announced remote learning for public and private schools and universities as a preventive and precautionary measure to curb the spread of the coronavirus. The objective of this study was to explore the e-learning experience of the students of the colleges of health sciences with regard to the technical preparedness, academic achievements, e-learning advantages and limitations. A well-structured and validated questionnaire on a five-point Likert scale and open-ended questions about their e-learning experience was distributed to a heterogeneous purposive sample of the health sciences students in Saudi Arabian universities.ResultsOf the 1288 respondents, of various demographical features a relatively higher proportion of 58.2 % agreed that they had enough information about the online learning. However, the proportion who reported receiving adequate guidance, technical support, and having satisfactory hardware and internet access to online learning were 48.1 %, 42, and 35.4 %, respectively. Of all participants, 40.8 % agreed that they had gained a good understanding of their courses learning outcomes. Only 30.0 % agreed that the quality of the online teaching was similar to traditional classes and 56.1 % agreed that the online learning is unsuitable for the medical sciences studies.E-learning advantages mentioned were the flexible accessibility of the learning materials, time, effort, and money saving, acquiring and improving technical and self-learning skills, health safety, interaction without shyness, and better academic accomplishment. On the other hand, disadvantages and difficulties included inadequate tools to facilitate online learning, poor internet connection, lack of technological skills by the educators and students. In addition, there was inadequate or lack of practical classes, lack of a unified clear policy for the conduct of online classes and exams and grade distribution, limited online exam time.ConclusionsThe sudden shift to e-learning without prior preparedness has revealed some pitfalls that need to be adjusted. The initial findings were considered satisfactory for such a new experience for both learners and students. However, there is a great chance for improving and expanding the e-learning process.

The quality assurance (QA) of ultrasound transducers is often identified as an area requiring continuous development in terms of the tools available to users. Periodic evaluation of the transducers as part of the QA protocol is important, since the quality of the diagnostics. Some of the key criteria determining the process of developing a QA protocol include the complexity of setup, the time required, accuracy, and potential automation to achieve scale. For the current study, a total of eight different ultrasound machines (12 transducers) with linear transducers were obtained separately. The results from these 12 transducers were used to validate the protocol. WAD-QC was used as part of this study to assess in-air reverberation patterns obtained from ultrasound transducers. Initially, three in-air reverberation images obtained from normal transducers and three obtained from defective transducers were used to calculate the uniformity parameters. The results were applied to 12 other images obtained from independent sources. Image processing results with WAD-QC were verified with imageJ. A comparison of raw data for uniformity showed consistency, and using controls based on mean absolute deviation yielded identical results. WAD-QC can be considered as a powerful mechanism for quick, efficient, and accurate analysis of in-air reverberation patterns obtained from ultrasound transducers.

OBJECTIVES: This study's objectives are to (1) determine the current prevalence of iron-deficiency anemia (IDA) and risk factors for female college students at Prince Sultan Military College of Health Sciences (PSMCHS) in the Eastern Province of Saudi Arabia and (2) address the gap in the current literature. A written survey in both Arabic and English was administrated to 214 female students, and only 201 students completed the survey. It was randomly selected from all registered female students. A number of factors possibly associated with IDA were examined using the Chi-square test. CONTEXT: Globally, iron deficiency is known to be the most common nutritional disorder. About 30% of the world's population are iron deficient (ID). Women seem to be more affected with IDA than men, which constitute an epidemic public health issue. AIMS: The aim of the study was to determine the prevalence of IDA and the risk factors among healthy Saudi undergraduate female college students studying at PSMCHS in Dhahran. SETTINGS AND DESIGN: A cross-sectional study on 201 female students (18–25 years) was conducted between January and March 2019. SUBJECTS AND METHODS: A questionnaire which contains sociodemographic data was completed by each participant. Two blood samples were collected from each participant to estimate the iron profile and to analyze the complete blood counts. STATISTICAL ANALYSIS: The statistical analysis was carried out using the Statistical Packages for the Social Sciences software. RESULTS: The overall prevalence of IDA was 35.3%. The questionnaire analysis of the dietary habit and clinical characteristics revealed that family history of hereditary disease and physical activity have a significant effect on the development of IDA. Statistical analysis showed that having breakfast regularly significantly reduced the development of IDA compared with irregularly having breakfast. CONCLUSIONS: The prevalence of IDA in this study was moderately high, and our results suggest that further education regarding IDA is highly encouraged. This is the first study that demonstrated the prevalence and risk factors of IDA among undergraduate female college students in PSMCHS, and the data generated will provide a database for further studies.

Objective/background Mutations in transmembrane protease serine 6 (TMPRSS6) gene induce high hepcidin level, which causes iron-refractory iron deficiency anemia (IRIDA) by preventing duodenal iron absorption. This study aims to identify the common genetic variations of the TMPRSS6 gene that affect iron levels among Saudi female patients with iron deficiency anemia (IDA). Methods All study participants were Saudi females (12–49 years old): 32 patients with IDA, 32 patients with IRIDA, and 34 healthy individuals comprising the control group. Hematological investigations, iron profile, serum hepcidin level, and TMPRSS6 gene transcription were determined. The TMPRSS6 gene was amplified, sequenced, and analyzed among all study participants. Results The mean hepcidin and TMPRSS6 RNA transcription levels in IDA and IRIDA groups were significantly lower than those in the control group. TMPRSS6 gene sequence analysis detected 41 variants: two in the 5′ untranslated region (5′UTR), 17 in introns, and 22 in exons. Thirty-three variants were previously reported in the Single Nucleotide Polymorphism Database, and eight variants were novel; one novel variant was in 5′UTR (g.-2 T > G); five novel variants were detected in exons (p.W73X, p.D479N, p.E523K, p.L674L, and p.I799I). At the time of the sequence analysis of our samples, two variants—p.D479N and p.674L—were novel. However, these variants are present at a very low allele frequency in other populations (L674L, 0.00007761 and D479N, 0.000003980). Conclusion This is the first study to investigate the genetic variants of TMPRSS6 gene in Saudi female patients with IDA. The generated data will serve as a reference for future studies on IDA in the Arab population.