مواقع التدريسيينجامعة الكوفة
حوراء عبد الامير علي الدهان
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حوراء عبد الامير علي الدهان

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الملف الشخصي

بكلوريوس علوم - جامعة الكوفة
ماجستير بكتريولوجي - جامعة الكوفة
دكتوراه. مناعة بكتريا مرضية -الجامعة المستنصرية

الاهتمامات البحثية

7

البحوث المنشورة

10
2015

Molecular Characterization of P.aeruginosa isolated from Patients with URTI

الباحثونDr. Hawraa A. A. Al-Dahhan
المجلةJournal of Chemical, Biological and Physical Sciences
مختصر البحث

This study provides genotypic data on 70 isolates of P.aeruginosa recovered from respiratory tract infections. The recovered P.aeruginosa isolates were genotyped for the appearance oprI and porL genes by using multiplex-PCR assay coupled with RAPD analysis for disparity of these isolates.Multiplex-PCR assay indicated that all isolates of P. aeruginosa appeared oprI andoprL gene,respectively. RAPD analysis for genotyping of P. aeruginosa yield 22 patterns out of 35 isolates composed of 1-8 fragments with primer P6 and 30 patterns composed of 1-7 fragments with primer B-11.The RAPD –analysis revealed some level of clonally diversity and virulence among these isolates.

2015

Phenotypic and Genotypic Characterization of Salmonella Typhi Virulence Factors Isolated From Patients with Typhoid Fever in Najaf Province /Iraq

الباحثونDr.HawraaA.Ali.Al-Dahhan، Ms.C.AnghamJ. Muhammed Ali & Prof.Dr.MahdiH.Al-Ammer
المجلةInternational Journal of Research Studies in Biosciences (IJRSB)
مختصر البحث

Salmonella entericaserovar Typhi remains a major public health problem in many developing countries .The severity and pathogenesis of the disease depending on virulence factors. Previously, different virulence factors have been detected phenotypically and serologically for clinical and epidemiological investigation of salmonella. Beyond the phenotypic characterization, a reliable molecular methods are require. Therefore, this study was attempted To use different molecular methods for investigation the present of tviA , staA , and nested staA genes by monoplex –PCR. Sixty five S.typhi bacteril isolates that been isolated and diagnosed depending on the culture charecters and the present of 16SrRNA with 441bp. The results of monoplex PCR of virulence factors genes clarify that all isolates (100%) of S. typhi producers isolates carrying tviA, staA and nested staA gene that predominance gene among other genes under study, which was found in all bacterial isolates producers respectively. S. typhi isolates were showed possessing these genes which responsible for S. typhipathogenicity.

2015

Detection of Antibiotic Resistance Patterns of Pseudomonas aeruginosa Isolated from Ear Infection

الباحثونDr.Hawraa A.Ali.Aldahhan، Douaa Amer Kadhim
المجلةInternational Journal of Current Research in Biosciences and Plant Biology
مختصر البحث

Out of 70 specimens (ear swabs) collected from patient suffering from CSOM, P. aeruginosa was the dominant bacteria with 28% (21 isolates). P. aeruginosa was the commonest bacterial isolated in adult ages group in larger than 10 years old and the proportion of these isolates were increased with the increasing of age and the highest percentage of isolates were seen in the age groups 51 60 years (50%) and 31 40 years (35%). P. aeruginosa isolated in female (60%) higher them in male (40%). Most of isolates show (100%) multiple resistance to Cefotaxime, Amoxicillin, Naldixic acid, Rifampin and Cephalothin, and highly resistance to Gentamycin, Ceftraxone and Cefotaxime (90.4, 90.4, 95.2) % respectively. While resistance of isolates to Ciprofloxacin and Azithromycin append in (2.3 and 4.7) % respectively. The patterns (Ciprofloxacin, Naldixic acid, Cephalothin, Ceftraxone, Cefotaxime, Cefotaxime, Amoxicillin, Rifampin, Gentamycin) represent the highest degree of multiplicity (42.8%) and the patterns (Naldixic acid, Cephalothin, Ceftraxone, Cefotaxime, Cefotaxime, Amoxicillin, Rifampin) represent the lowest degree of multiplicity (9.5%). The resuts of MIC for chemical disinfactants showed that sekulyse inhibit the bacterial growth at the concentration 2 (76.2 %) and 4 (57.1 %), while minudes stopped the bacterial growth at concentration 1 (38.1 %), 2 (47.6 %) and 4 (71.4 %). Skin sept and detolin inhibit bacterial growth at the concentration of 4 (6.3, 42.9) % and 8 (9.5, 14.3) %, respectively. These results showed that minudes is the best detergent for killing P. aeruginosa since it inhibit growth at the MIC (1).

2015

Phenotypic and Genotypic Characterization of Some Virulence Factors in Streptococcus pneumoniae Isolated from Patients with LRTI in Najaf Province/Iraq

الباحثونZahraa Y.MotaweqP، Habeeb S. NaherP**P, HawraaA.Ali.Al-DahhanP
المجلةInternational Journal of Scientific & Engineering Research
مختصر البحث

This study provides genotypic data on 74 isolates of Streptococcus pneumoniae recovered from lower respiratory tract infections. In this study, some of them were detected by traditional phenotypic methods while others detected by phenotypic and then genotipically by using monoplex-PCR technique. The results showed that all (100%) isolates were encapsulated iso-lates. The molecular detection of cspA gene by using specific primer for S. pneumoniae revealed positive amplification for all iso-lates (100%). The results showed that overall, 89.2% of investigated isolates contained the lytA gene. In spite of, all (100%) of pneumococcus isolates have autolysin phenotypically. The results of this experiment indicated for positive amplification and it has been found that ply gene is found in 97.3% of pneumococcal isolates. In this study, the nanA and nanB genes were found in all S. pneumoniae isolates (100%) and (62.2%) respectively.

2015

Phenotypic and Genotypic Characterization of Some Virulence Factors in Streptococcus pneumoniae Isolated from Patients with LRTI in Najaf Province/Iraq

الباحثونZahraa Y.MotaweqP، Habeeb S. NaherP**P, HawraaA.Ali.Al-DahhanP
المجلةInternational Journal of Scientific & Engineering Research
مختصر البحث

This study provides genotypic data on 74 isolates of Streptococcus pneumoniae recovered from lower respiratory tract infections. In this study, some of them were detected by traditional phenotypic methods while others detected by phenotypic and then genotipically by using monoplex-PCR technique. The results showed that all (100%) isolates were encapsulated iso-lates. The molecular detection of cspA gene by using specific primer for S. pneumoniae revealed positive amplification for all iso-lates (100%). The results showed that overall, 89.2% of investigated isolates contained the lytA gene. In spite of, all (100%) of pneumococcus isolates have autolysin phenotypically. The results of this experiment indicated for positive amplification and it has been found that ply gene is found in 97.3% of pneumococcal isolates. In this study, the nanA and nanB genes were found in all S. pneumoniae isolates (100%) and (62.2%) respectively.

2015

Phenotypic and Genotypic Characterization of Some Virulence Factors in Streptococcus pneumoniae Isolated from Patients with LRTI in Najaf Province/Iraq

الباحثونZahraa Y.Motaweq، Habeeb S. NaherP**P, HawraaA.Ali.Al-Dahhan
المجلةInternational Journal of Scientific & Engineering Research
مختصر البحث

This study provides genotypic data on 74 isolates of Streptococcus pneumoniae recovered from lower respiratory tract infections. In this study, some of them were detected by traditional phenotypic methods while others detected by phenotypic and then genotipically by using monoplex-PCR technique. The results showed that all (100%) isolates were encapsulated iso-lates. The molecular detection of cspA gene by using specific primer for S. pneumoniae revealed positive amplification for all iso-lates (100%). The results showed that overall, 89.2% of investigated isolates contained the lytA gene. In spite of, all (100%) of pneumococcus isolates have autolysin phenotypically. The results of this experiment indicated for positive amplification and it has been found that ply gene is found in 97.3% of pneumococcal isolates. In this study, the nanA and nanB genes were found in all S. pneumoniae isolates (100%) and (62.2%) respectively.

Assessment the Levels of Antibodies (Anti-TTG and Anti-AGA) in the Serum of Patients with Celiac Disease

الباحثونM.Sc. Zahraa Abbass Qasim1، Prof.Dr. Hawraa Abdul ameer Ali Al-Dahhan2
المجلةInternational Journal of Pharmaceutical and Bio-Medical Science
مختصر البحث

Celiac disease (CD) is an autoimmune disorder defined by distinct serological and histological alterations induced by the consumption of gluten in genetically predisposed individuals. This study aims to assess the levels of antibodies (anti - tTG and anti - AGA) as in the serum of patients with celiac disease. This case-control study involved 85 celiac disease patients (35 males and 50 females) recruited between July 2023 and December 2023. Samples were collected from the Internal Medicine Unit at Al-Sadder Medical City and the Specialized Hospital for Gastroenterology and Hepatology in Al-Najaf province. The age of the patients ranged from 5 to 60 years old. All patients underwent comprehensive general and clinical examinations to validate the diagnosis of CD using various serological kits ( tTG - IgA, tTG - IgG, AGA - IgA,& AGA – IgG ). A healthy control groups comprising 30 individuals comparable for (age and sex) was also included. The findings of the present study indicated that no significant differences were observed among patients with age groups, and most patients with celiac disease were between (15-24) years. The present data revealed that females in CD patients presented in a significant high percentage (58.82%) than male (41.17%). In relation to serum levels of anti-tissue transglutaminase (anti-TTG) antibodies, including IgA and IgG, in patients with celiac disease (CD), the level between 12 and 18 AU/ml considered as an equivocal threshold serves as the distinguishing point between positive and negative results. There was no significant difference observed (p > 0.05) between level of anti-TTG IgA& IgG in celiac disease patients. The mean of anti-tissue transglutaminase (anti-TTG) IgA antibody level was 72.06±91.45 AU/ ml in the patient groups. 75 out of 85(88.23%) of CD patients appeared with positive values (>18 AU/ml) with no significant difference with negative value. The mean of anti-tissue transglutaminase (anti-TTG) IgG antibody level was 51.88±57.69 AU/ ml. The patients with negative results falling below the 12 AU/ml was 14.11% while those with positive values (>18 AU/ml) were 85.88% with significant difference. There was a significantdifference (p<0.05) between level of anti-AGA IgA& anti-AGA IgG in CD patients. the positive anti-AGA (IgA&IgG)cases of patient group were higher (68.9% and 88.23%) than negative results (31.1% and 11.76 %), respectivelly with no significant difference.

2024

Study the Relation of lymphocyte and Some Immuno-inflammatory Finding in pateints with COVID-19

الباحثونHawraa Abdulameer Ali Al-DAHHAN1 ، Raja Abd ulhameed NURI2 Ameer Sadeq Yasir Al-EtHARI3
المجلةLatin American Journal of Pharmacy (formerly Acta Farmacéutica Bonaerense)
التاريخ2024-04-13
مختصر البحث

infectious disease 19 (COVID-19) patients were in cluded in this study .There were diagnosis according to their symptom and positive qPCR nasopharyngeal swab as reported by WHO guide, (146 ) male and (104) female with a medium age (51)year. In the current study, the haemolytical laboratory findings of patients, showed elevated number of leukocyte (18.3), lymphopenia (11.4%) ,higher neutrophil (81.95), higher neutrophil to lymphocyte ratio (NLR: 7.1 ) .Some immunological biomarker were estimated in this aspect such as CRP,IL-6 ,CXCL10, and TNFα by using techniques : nephlometry for CRP , enzymelinked immune sorbent assay (ELISA) for CXCL10, and TNF α ,respectively. The mean level of all cytokines ( CRP, IL-6, TNF α) significantly (<0.0001 ) increased during infection than normal value, the age group (≥ 66 ) appeared high level of CRP(74.7 ±3.3 ) and TNF α (35± 2.3) followed by 56-65 age group in (53.4 ±10 and 33 ± 1.7 for CRP and TNF α ,respectively. high level of IL-6 appeared in ≥ 66 ( 54.2 - 6.4 ) ,while less level (10.1- 2.47 ) appeared in( 26- 35) age group.in this study the mean level of CXCL10 decrease during the increase of age from( 125 ± 11.5) to 42- 11.4 in ≤ 15 and ≥ 66 age group ,respectively. positive correlation was appeared between CXCL10 and Lymphocyte.

2022

Molecular detection of some virulence genes of Proteus mirabilis in rheumatoid Arthritis patient’s urine and other clinical samples: Comparative study

الباحثون Shahad Ali Kamil ، Shahad Ali Kamil
المجلةInternational Journal of Health Sciences
التاريخ2022-06-09
مختصر البحث

This study was aimed to detecting three different virulence genes (UreC, HmpA and ZapA ) for Proteus mirabilis isolated from different clinical samples ( urine from UTI non-Rheumatoid arthritis patients, urine from UTI Rheumatoid arthritis patients, wound swaps , chronic supportive otitis media(CSOM) and cerebrospinal fluid aspirate(CSF). Three hundred (300) different clinical samples were collected and cultured on blood agar and macConky agar. 40 of samples were identified as P. mirabilis , biochemical test and VITEK 2 system used to complete the identification. Phenotypic detection appeared the present 100% of urease enzyme (on urea agar) hemolysin enzyme ( on blood agar), swarming phenomena (on agar plate ) while protease enzyme detection (on skim milk agar) present in 54% of isolates. Molecular results by PCR present UreC, HmpA and ZapA genes in 100 % in 40 isolates. Antibiotic Susceptibility test of Proteus mirabilis based on Kirby-Bauer disk diffusion method on Muller-Hinton agar to (14) different antimicrobial agents appeared 100% resistance to Aminoxicillin /clav, Cefotaxime and Erythromycin while the lowest resistance was against Impenem, Ciprofloxacin, Meropenem and Gentamicin (12.5%, 15 %, 20% and 47.5%), respectively. In conclusion: Proteus mirabilis can isolated from different clinical samples and have virulence factors responsible for its pathogenicity and there is no difference in PCR result for these genes (UreC, HmpA and ZapA ) between RA and different clinical samples.

2022

Analysis of Proteus mirabilis proteins by using SDS-page technique in rheumatoid arthritis patients: Comparative Study

الباحثونShahad Ali Kamil، Hawraa A Ali Aldahhan
المجلةInternational Journal of Health Sciences
التاريخ2022-06-09
مختصر البحث

This study was aimed to detecting difference in proteins separation by SDS-Page for Proteus mirabilis isolated from urine of non-Rheumatoid arthritis patients have urinary tract infection , urine from Rheumatoid arthritis patients have urinary tract infection. Two hundred (200) urine sample collected from non RA patient30 urine sample from RA patient. These clinical samples were collected and cultured on blood agar and macConky agar. 32 isolates were identified as p. mirabilis by using biochemical test and VITEK 2 system used to complete the identification. The current study used SDS-Page technique for proteins analysis of Proteus mirabilis for both RA patient and non RA patient to detect the differences between them and the result appeared that there are no differences in total protein, insoluble proteins and soluble protein at different pH. Values (6.0, 7.0 & 8.0) at 37 cº, also the result shown differences in the cell –free culture supernatants between Proteus mirabilis from urine of both rheumatoid arthritis patients and non-rheumatoid arthritis patient in pH.8.0 at 37 cº in 7 h. by band appeared in pH.8.0 at 37 cº in 7 h in RA .and there is no band in non RA at the same condition. In conclusion: Proteus mirabilis isolated from urinary tract infection of Rheumatoid arthritis patients shown difference in the cell –free culture supernatants in compare to Proteus mirabilis isolated from urinary tract infection of non-Rheumatoid arthritis patient at the same proteins separation conditions.

المحاضرات

25

Introduction to Clinical Immunity

Clinical immunity

TYPE II (ANTIBODY-MEDIATED) HYPERSENSITIVITY

Clinical immunity

Transplantation

Clinical immunity

IMPORTANT CYTOKINES

Clinical immunity

Autoimmune Diseases

Clinical immunity

Introduction to Immune System

general immunity

INNATE & ADAPTIVE IMMUNITY

general immunity

Origin and Types of Immune Cells

general immunity

ANTIGENS

general immunity

Antibodies

general immunity

Serology and Vaccination

Serology and Vaccines

antigen-antibody reactions

Serology and Vaccines

The enzyme-linked immunosorbent assay (ELISA)

Serology and Vaccines

polyclonal antibody &monoclonal antibody

Serology and Vaccines

Types of vaccines

Serology and Vaccines

INTRODUCTION TO IMMUNOLOGY

Advanced Immunity

Basic Components of the Immune System

Advanced Immunity

Origin& Functions of immune cell

Advanced Immunity

IMPORTANT CYTOKINES

Advanced Immunity

Autoimmune Diseases

Advanced Immunity

Introduction to medical immunity

(ph.D)Medical Immunity

Innate Cellular Response

(ph.D)Medical Immunity

Hypersensitivity Reactions

(ph.D)Medical Immunity

Immunodeficincy

(ph.D)Medical Immunity

Auotoimmunity

(ph.D)Medical Immunity

عرض التفاصيل