Publications by authors named "Ruba Al-Omari"

Using high-throughput sequencing technology, the complete mitochondrial genome of Awassi-Jo breed () was decoded. Mitochondrial genome was 16,617 bp in length. The genome contained 37 genes (13 protein-coding, 22 tRNA, and 2 rRNA) and a control region (D-loop region).

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Article Synopsis
  • The study aimed to determine the extent of anti-TB drug resistance in Saudi Arabia through a national survey, finding that previous local studies were limited and may not represent the national picture.
  • Out of 2,235 enrolled patients, the results showed a low prevalence of multidrug-resistant TB (MDR-TB) at 1.8% for new cases and 15.9% for previously treated cases, along with higher rates of mono-resistance to various anti-TB drugs.
  • Key risk factors for MDR-TB included a history of active TB, being foreign-born, having pulmonary TB, and residing in the Western region of the country, highlighting the need for improved monitoring and innovative control measures.
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Drug susceptibility testing (DST) of Mycobacterium tuberculosis is a crucial procedure to determine the effective drug regimen for patients' treatment. Reporting of erroneous DST results to the treating physician has adulterous effects on patients. As a first study of its type, the inconsistencies in reporting DST results of rifampicin and isoniazid from Saudi Arabia were assessed.

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Article Synopsis
  • The study investigates the genetic diversity and clustering of Mycobacterium tuberculosis strains in Saudi Arabia, a country known for its diverse population due to migration and pilgrimage, by analyzing 322 drug-resistant isolates over a year.
  • Findings show that multiple phylogeographic lineages of M. tuberculosis were present, indicating broad genetic diversity, with significant links between specific lineages and drug resistance, particularly among previously treated TB cases.
  • No significant differences were found in the distribution of these lineages between Saudi citizens and foreign-born patients, with many strain clusters shared between both populations, highlighting an interconnected TB landscape.
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Endogenous reactivation and exogenous reinfection of tuberculosis were studied for the first time in Saudi Arabia after enrolling a total of 39 patients with multiple episodes of tuberculosis between 2009 and 2010. All of the primary and subsequent isolates enrolled were subjected to spoligotyping, 24 loci based MIRU-VNTR typing and first line anti-tuberculosis drug susceptibility testing. The primary episode isolates from patients born outside Saudi Arabia were dominated by lineages which are prevalent in their country of origin (e.

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Data on the genetic variation of isolates of Mycobacterium tuberculosis and spectrum of mutations determining resistance to principal anti-tuberculosis drugs isoniazid (INH) and rifampicin (RIF) have not yet been studied in Saudi Arabia. One hundred and fifty-one clinical isolates of M. tuberculosis from different regions in the country showing resistance to RIF and INH were subjected to drug susceptibility testing, characterization of mutations conferring drug resistance and genotyping.

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The aim of this study was to evaluate the effect of testosterone treatment on the pattern of prostate cell proliferation and differentiation and their correlation with the expression of transforming growth factor-beta (TGF-beta). Prostate gland development was compared in intact immature dogs with one-month testosterone-treated immature dogs. Testosterone treatment resulted in a tenfold increase in prostate gland weight compared to untreated dogs, with a typical organization of the gland into a structure similar to that observed in mature dogs.

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This study was conducted to evaluate the effect of androgen ablation on dog prostate gland structure and the proliferation capacity of the prostatic cells and their association with the expression of Activin A and Activin RIIA receptor. The effect of androgen on the prostate gland was compared in intact and castrated dogs after one and two weeks. Specific primary antibodies were used to immunolocalize activin-A, activin receptor type II A and the proliferation marker (PCNA).

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