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Study of 15 System of Short Tendem Repeats Loci (STRs) In Sample of Syrian Population

دراسة 15 نظاماً من أنظمة التكرارات الترادفية القصيرة STRs لدى عينة من الشعب السوري

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 Publication date 2015
  fields Medicine
and research's language is العربية
 Created by Shamra Editor




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Background& Objective: The aim of this study was to know the Allele frequencies for the 15 STR loci in the sample in Aleppo in Syria. Materials & Methods: Allele frequencies for the 15 STR loci included in the PowerPlex16 PCR Amplification Kit panel from (Promega, Madison, USA) according to manufacturer’s instructions (D3S1358, TH01, D21S11, D18S51, PentaE, D5S818, D13S317, D7S820, D16S539, CSF1PO, PenyaD, vWA, D8S1179, T, POX , FGA) and several statistical parameters were estimated from a sample of 127 unrelated individuals representing all ethnic groups in Aleppo in Syria . DNA was extracted from blood samples using QIAmp1 DNA Mini Kit (QIAGEN, Hagen, Germany) according to manufacturer’s instructions and the PCR products were typed using an ABI PRISM 310 Genetic Analyzer (Applied Biosystems, Foster City, CA, USA)). The results were analyzed using GeneMapper ID v3.0 software (Applied Biosystems). Several forensic and population parameters such as heterozygosity, polymorphic information content (PIC), power of discrimination (PD), power of exclusion (PE) and the paternity index (PI)) were calculated using Microsoft Excel-2007. A p-value of the 15 loci were estimated by using the statistical Microsoft Windows 2007 to verify whether the genotype distribution conformed to Hardy- Weinberg equilibrium predictions. Results : We compared our data with other data sets from published studies of individuals from Turkey, Morocco and Iraq, our data indicate that standardized multilocus STR panels may be a useful forensic tool which can be applied for identification purposes also in the Syria population. Conclusion: Our Data may be a useful forensic tool which can be applied for identification purposes also in the Syria population.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تحليل 15 موضعًا وراثيًا من أنظمة التكرارات الترادفية القصيرة (STRs) على عينة من الشعب السوري القاطنين في مدينة حلب. تهدف الدراسة إلى معرفة تواتر الأليلات لهذه المواقع الوراثية وتقييم فائدتها في التطبيقات الطبية الشرعية وتحديد هوية الأشخاص. استخدمت الدراسة عينات دم من 127 فردًا سليمًا، وتم استخراج الحمض النووي باستخدام كيتات من شركة Qiagen، ثم تضخيمه باستخدام تقنية PCR وترحيله بجهاز ABI PRISM 310 Genetic Analyzer. تم تحليل النتائج باستخدام برنامج GeneMapper ID v3.0. أظهرت النتائج توافق التوزيع الوراثي للعينة مع توازن هاردي وواينبرغ، وأظهرت فائدة الأنظمة المدروسة في التطبيقات الطبية الشرعية وتحديد هوية الأشخاص في سوريا، مقارنة بدراسات مشابهة لدى الشعب المغربي والتركي والعراقي.
Critical review
تعتبر هذه الدراسة خطوة مهمة في مجال الطب الشرعي في سوريا، حيث تسهم في إنشاء قاعدة بيانات وراثية للشعب السوري. ومع ذلك، يمكن تحسين الدراسة من خلال زيادة حجم العينة لتشمل مناطق جغرافية أخرى في سوريا، مما يزيد من دقة النتائج ويعزز من تمثيلها للشعب السوري ككل. كما يمكن استخدام تقنيات تحليلية أكثر تطورًا لتحسين دقة النتائج وتقليل الأخطاء المحتملة. من المهم أيضًا مقارنة النتائج مع مزيد من الدراسات العالمية لتحديد مدى توافقها مع البيانات الوراثية العالمية.
Questions related to the research
  1. ما هو الهدف الرئيسي من هذه الدراسة؟

    الهدف الرئيسي هو معرفة تواتر الأليلات لـ 15 موضعًا وراثيًا من أنظمة التكرارات الترادفية القصيرة (STRs) في عينة من الشعب السوري القاطنين في مدينة حلب وتقييم فائدتها في التطبيقات الطبية الشرعية وتحديد هوية الأشخاص.

  2. ما هي التقنية المستخدمة في تضخيم الحمض النووي في هذه الدراسة؟

    تم استخدام تقنية تفاعل البوليميراز المتسلسل (PCR) لتضخيم الحمض النووي في هذه الدراسة.

  3. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    أظهرت الدراسة توافق التوزيع الوراثي للعينة مع توازن هاردي وواينبرغ، وأظهرت فائدة الأنظمة المدروسة في التطبيقات الطبية الشرعية وتحديد هوية الأشخاص في سوريا، مقارنة بدراسات مشابهة لدى الشعب المغربي والتركي والعراقي.

  4. ما هي التوصيات التي قدمتها الدراسة لتحسين الأبحاث المستقبلية؟

    أوصت الدراسة بزيادة حجم العينة لتشمل مناطق جغرافية أخرى في سوريا، واستخدام تقنيات تحليلية أكثر تطورًا لتحسين دقة النتائج، ومقارنة النتائج مع مزيد من الدراسات العالمية لتحديد مدى توافقها مع البيانات الوراثية العالمية.


References used
Ellegren, H Microsatellites: simple sequences with complex evolution. Nat. Rev. Genet. 2004; 5:435–445
Chakraborty R, Jin L. Heterozygote deficiency, population substructure and their implications in DNA fingerprinting. Hum Genet 1992;88: 267-272
Evett, I. W and Gill, P. Population geneticsof short tandem repeat (STR) loci. Genetica 1995; 96:69-87
Edwards, M.C. and Gibbs, R.A. Multiplex PCR: advantages, evelopment, and applications. [Review]. PCR Methods &.Applications1994; 3: S65-S75
Butler JM Forensic DNA Typing Biology& Technology behind STR Markers ; Academic Press,USA. ; 2001
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