4 research outputs found

    Evaluation of Forensic Genetic Parameters of 24 STR Loci and Y indel in a Southern Region Saudi Population Sample Using GlobalFiler™ PCR Amplification Kit

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    The last three decades have seen rapid advances in the field of short tandem repeats (STRs) genotyping technology. Autosomal STRs have emerged as a  powerful tool in forensic identification and paternity investigations. The indigenous population of Saudi Arabia is irregularly distributed and has historically been organized into geographically distinct groups or tribes of patrilineal descent. So far, there has been no detailed investigation of the southern region Saudi population to assist in the interpretation of DNA-based forensic evidence and in the construction of DNA database. The objective of this study is to investigate the genetic structure in 154 unrelated healthy Saudi subjects within three generations from the southern Saudi regions using a GlobalFiler™ PCR Amplification kit. Intra- and Inter-population genetic diversity as well as the forensic genetics parameters were analyzed. Our results showed that SE33 and TPOX loci were the most and the least polymorphic loci, respectively. The PIC, PE, TPI, Ho and He varied from 0.56116 (TPOX) to 0.94393 (SE33), 0.26638 (TPOX) to 0.83859 (SE33), 1.1875 (TPOX) to 6.33333 (SE33), 0.57894 (TPOX) to 0.92105 (SE33) and 0.6169 (TPOX) to 0.952 (SE33), respectively. The highest PM was observed for D22S1045 (0.223944) and the highest PD for SE33 (0.98935). The combined PD was 99.99999999% and the combined PM was equal to 3.19021E-25. Phylogenetic parameters showed that the southern region Saudi population had the closest genetic relationship with the Saudi, Emirati, Kuwaiti, and Bahraini populations. The study offers some important insights into the southern region Saudi population structure using GlobalFiler™ PCR Amplification kit

    Induction of chronic subclinical systemic inflammation in sprague–dawley rats stimulated by intermittent bolus injection of lipopolysaccharide

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    Chronic subclinical systemic inflammation has a key role in stimulating several chronic conditions associated with cardiovascular diseases, cancer, rheumatoid arthritis, diabetes, and neurodegenerative diseases. Hence, developing in vivo models of chronic subclinical systemic inflammation are essential to the study of the pathophysiology and to measure the immunomodulatory agents involved. Male Sprague–Dawley rats were subjected to intraperitoneal, intermittent injection with saline, or lipopolysaccharide (LPS) (0.5, 1, 2 mg/kg) thrice a week for 30 days. Hematological, biochemical, and inflammatory mediators were measured at different timepoints and at the end of the study. The hearts, lungs, kidneys, and livers were harvested for histological evaluation. Significant elevation in peripheral blood leukocyte includes neutrophils, monocytes, and lymphocytes, as well as the neutrophils-to-lymphocyte ratio. The pro-inflammatory mediator levels [C-reactive protein, tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-1β, and IL-8] along with the biochemical profile (alkaline phosphatase, aspartate aminotransferase, alanine aminotransferase, gamma-glutamyl transferase, creatine kinase, creatinine, and urea) were increased significantly (P < 0.05) and increased the expression of monocyte chemoattractant protein-1 and TNF-β. The histopathological changes of heart, lung, kidney, and liver tissues revealed degeneration, cellular infiltration of leukocyte in the inflammatory foci and interstitial space, edema, early signs of fibrosis, apoptosis, and necrosis. In conclusion, these results indicate that intermittent exposure to LPS produces chronic subclinical systemic inflammation in multiple organs leading to chronic conditions and supports this model to be a useful preclinical tool for developing immunotherapeutic agents that could prevent, or reduce, chronic inflammatory diseases associated with, or without, bacterial translocation

    Stay in the Execution of Penal Sentences due to Illness: Selected Case Reports and a Review of the Legal Framework in Turkey

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    The postponement of penal sentences due to illness is defined in article 16 of Law No. (5275) on the execution of penalties and security measures in Turkey. According to this article, the execution of a penal sentence is carried out if the disease or illness of a convicted criminal is mild and is treatable at a prison clinic or at a public hospital having separate out-patient or in-patient clinics for prisoners. On the other hand, if the convict is suffering from a serious or life-threatening disease and the execution may risk the convict's life, then execution of the sentence is delayed until the convict has suitably recovered. In Turkey, the decision to grant a stay in the execution of a penal sentence is given by the Chief Public Prosecutor's Office on the basis of medical reports prepared by the specialized health committees of public hospitals and approved by the Council of Forensic Medicine or directly prepared by the Council of Forensic Medicine. According to the law of the Council of Forensic Medicine, these reports are sent to the 3rd Specialization Board of the Council of Forensic Medicine by the Prosecutor's Office and then a medical examination of the applicants is arranged. In the present paper, four cases are presented in order to show the working approach of the Council of Forensic Medicine. The first two cases exemplify medical conditions which entitle an ill convict to a stay in the execution of their prison sentence. The last two cases exemplify medical conditions that do not qualify a convict to be considered for a stay in the execution of their sentence

    A review of studies examining the association between genetic biomarkers (short tandem repeats and single-nucleotide polymorphisms) and risk of prostate cancer: the need for valid predictive biomarkers

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    Prostate cancer (PCa) is a challenging polygenic disease because the genes that cause PCa remain largely elusive and are affected by several causal factors. Consequently, research continuously strives to identify a genetic marker which could be used as an indicator to predict the most vulnerable (i.e., predisposed) segments of the population to the disease or for the gene which may be directly responsible for PCa. To enhance the genetic etiology of PCa, this research sought to discover the key studies conducted in this field using data from the main journal publication search engines, as it was hoped that this could shed light on the main research findings from these studies, which in turn could assist in determining these genes or markers. From the research highlighted, the studies primarily used two kinds of markers: short tandem repeats or single-nucleotide polymorphisms. These markers were found to be quite prevalent in all the chromosomes within the research carried out. It also became apparent that the studies differed in both quantity and quality, as well as being conducted in a variety of societies. Links were also determined between the degree and strength of the relationship between these markers and the occurrence of the disease. From the studies identified, most recommended a larger and more diverse survey for the parameters which had not been studied before, as well as an increase in the size of the community (i.e., the population) being studied. This is an indication that work in this field is far from complete, and thus, current research remains committed toward finding genetic markers that can be used clinically for the diagnosis and screening of patients with PCa
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