قسم الكيمياء الحيوية

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المنشورات العلمية

6

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من يعمل بـقسم الكيمياء الحيوية

يوجد بـقسم الكيمياء الحيوية أكثر من 6 عضو هيئة تدريس

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د. عبدالله مسعود بشين بشين

عبدالله بشين هو احد اعضاء هيئة التدريس بقسم الكيمياء الحيوية بكلية الطب البشري. يعمل السيد عبدالله بشين بجامعة طرابلس كـأستاذ منذ 2007-04-15 وله العديد من المنشورات العلمية في مجال تخصصه

منشورات مختارة

بعض المنشورات التي تم نشرها في قسم الكيمياء الحيوية

Psychological status of healthcare workers during the civil war and COVID-19 pandemic: A cross-sectional study

Objective Healthcare workers, particularly those working in departments that provide care for patients with coronavirus disease 2019 (COVID-19), are at a higher risk of this contagious disease than those who work in other departments. The aim of this study was to assess the psychological status of healthcare workers during the COVID-19 outbreak, which has compounded Libya's existing civil war-related problems. Methods A multi-center cross-sectional survey on depressive symptoms, anxiety symptoms, and abuse was conducted. The Hospital Anxiety and Depression Scale (HADS) was used to measure the prevalence of anxiety and depressive symptoms among healthcare workers. Results The data of 745 eligible healthcare workers from 15 hospitals were analyzed. Depressive and anxiety symptoms were compared to the basic characteristics of the participants to determine the association. A total of 420 (56.3 … arabic 17 English 93
Muhammed Elhadi, Ahmed Zaid(1-2020)
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Mutational screening in the PCSK9 gene among Libyan patients presenting familial hypercholesterolemia

Abstract: Familial hypercholesterolemia (FH) is an autosomal dominant genetic disorder of lipid metabolism, associated with elevated levels of low-density lipoprotein-cholesterol (LDLC), which can lead to premature cardiovascular disease and early death. Early diagnosis and initiation of treatment is important to prevent morbidity and mortality. Autosomal dominant hypercholesterolemia (ADH) is largely due to mutations in the low-density lipoprotein receptor gene (LDLR), the apolipoprotein B-100 gene (APOB), or the proprotein convertase subtilisin/kexin type 9 (PCSK9). In this study, genomic DNA of unrelated Libyan individuals with clinically diagnosed (FH) was analyzed by direct sequencing after dependent specific PCR primers amplification and DNA purification. That led to the identification of PCSK9 gene mutations for the first time in Libyan population which was compare to other populations. All 12 exons of PCSK9 gene and boundaries genotyped polymorphisms were sequenced, including leucine repeats coded in exon 1, by fluorescently tagged markers. We identified an allele for the rs67610340 polymorphism: an in-frame deletion, c.61_63delCTG (L8). We also identified another allele rs67610340 polymorphism: an in frame insertion c.61_63InsCTG (L10). The insertion and deletion alleles were both in exon 1 and could be associated with a risk and severity of coronary artery disease (CAD), suggesting a direct effect of PCSK9 on atherogenesis. arabic 11 English 90
Ghada Salem, Ahmed Zaid(1-2017)
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Polymorphisms of the thiopurine S-methyltransferase gene among the Libyan population

Background: Thiopurine S-methyltransferase (TPMT) is a cytosolic enzyme that catalyses the S-methylation of 6-mercaptopurine and azathioprine. Low activity phenotypes are correlated with polymorphism in the TPMT gene. Patients with low or undetectable TMPT activity could develop severe myelosuppression when they are treated with standard doses of thiopurine drugs. Since ethnic differences in the TPMT gene polymorphism have been demonstrated worldwide, assessing it in the Libyan population is worthwhile. Methods: We investigated TPMT gene polymorphism in a total of 246 Libyan healthy adult blood donors from three different Libyan regions (Tripoli, Yefren, and Tawargha) and 50 children with acute lymphoblastic leukaemia (ALL). We used polymerase chain reaction restriction length polymorphism (PCR-RFLP) and allele-specific PCR-based assays to analyse the TPMT gene for the variants* 2 c. 238 G> C,* 3A (c. 460 G> A and c. 719 A> G),* 3B (c. 460 G> A), and* 3C (c. 719 A> G). Results: Our results show that the TPMT variants associated with low enzymatic activity were detected in 3.25%(8 in 246) of adult Libyan individuals and the frequency of total mutant alleles was 1.63%. Heterozygous genotypes were TPMT* 3A in three subjects (0.61%) and TPMT* 3C in five subjects (1.02%). No TPMT* 2 and TPMT* 3B allelic variants and no homozygous or compound heterozygous mutant alleles were detected. The normal allele (wild-type) was found in 98.4% of the adult individuals studied. No mutant alleles were detected among the 50 children who had ALL. arabic 10 English 74
Hamza Ben Zeglam, Abdulla Bashein, (1-2015)
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