البحوث العلمية
2025
Frequency and Polymorphism of ABO and Rh (D) Blood Group Antigens among Kurdish Population in Zakho City, Kurdistan Region, Iraq
2025-04
International Journal of Science and Research (IJSR) ISSN: 2319-7064 Impact Factor 2024: 7.101 (القضية : 4) (الحجم : 14)
Abstract: Objective and aim: Accurate knowledge of ABO and Rh (D) blood group systems phenotype has been extensively studied
among different populations. However, the Kurdish population resident in Zakho City has not yet had their data collected. Thus, this
study has been conducted to address this issue. Material and Methods: This is a Prospective, cross - sectional study conducted at the
premarital screening center at Zakho emergency teaching hospital for the determination of ABO and Rh (D) blood group antigens by
slide agglutination method using specific antisera (Anti - A, Anti - B, Anti - D). All 11, 910 Kurdish individuals who attended mandatory
premarital screening between January 2, 2021, and January 31, 2024, were included in this study. Results: Blood group A was found to
be most prevalent and detected in 4, 817 (40.4%) of the studied population, followed by group O in 4, 276 (35.9%), then group B in 2, 008
(16.9%), and finally, group AB in 809 (6.8%). Rh (D) positive phenotype was detected in 10, 950 (91.9%), while 980 (8.1%) persons were
found to be Rh (D) negative. No significant differences were found between ABO and Rh (D) distribution with either sex or religion.
Conclusion: Blood group A was found as the most common blood group in the ABO system, followed by groups O, and B, and the least
one is the AB blood group. Most of the studied individuals were Rh (D) positive. ABO and Rh (D) distribution were quite similar to the
Kurdish population living in Iraq, Iran, Turkey, and Syria, while being quite different from Iraqi Arabs, Indians, Chinese, Pakistanis,
Americans, and Caucasians.
Prevalence of Hemoglobinopathies Among the Kurdish Population in Zakho City, Kurdistan Region, Iraq.
2025-02
Cureus 17(2): e78862. doi:10.7759/cureus.78862
Background: Hemoglobinopathies are the most common inherited disorders in the Mediterranean region,
including Iraq, with different frequencies and molecular features. They represent an important health
problem in Iraq. Several studies have addressed the prevalence of hemoglobinopathy in Iraq, but no specific
research has addressed its prevalence in Zakho city, Kurdistan Region, Iraq. Thus, this study was conducted
to address this issue.
Materials and methods: A prospective cross-sectional study was conducted in a premarital screening center
at Zakho Emergency Teaching Hospital, involving 11,910 Kurdish persons attending premarital screening
investigations. Blood samples were collected from all participants for complete blood counts and sickling
tests. A cut-off value of hemoglobin (Hb) concentrations (<13.0 gm/dl in males, <12.0 gm/dl in females),
mean cell volume (MCV) <80 fl and/or mean cell hemoglobin (MCH) <27 pg, and the results of the sickling
test were used to categorize the participants into three groups: group I, normal (normal Hb, MCV, and MCH,
and negative sickling test); group II, individuals with MCV < 80 fl and/or MCH < 27 pg, with or without
anemia, and negative sickling test; group III, sickle positive (individuals with a positive sickling test, with or
without anemia, regardless of MCV and/or MCH values).
Groups II and III underwent further evaluations by morphology, reticulocyte count, hemoglobin-H
preparation, iron studies, and cation exchange high-performance liquid chromatography (HPLC). βthalassemia trait was diagnosed by hypochromic microcytic red cell indices and increased hemoglobin A2
(HbA2) (>3.5%). The sickle cell trait was diagnosed by the presence of a band at the S region at HPLC with a
positive sickling test. Iron deficiency anemia (IDA) was diagnosed by hypochromic microcytic anemia and
reduced transferrin saturation (<15%) and/or ferritin (<15 mg/L). Descriptive statistical analyses were
conducted to define significant differences between the study's findings.
Results: A total of 963 (8.09%) of the studied participants were in group II. Further investigations on these
963 cases confirmed a diagnosis of IDA in 610 (5.12%). β-thalassemia trait was detected in 308 cases, with an
overall prevalence of 2.59%. δβ-thalassemia trait was detected in nine (0.076%) of the studied participants.
A professional diagnosis of α-thalassemia was given to 36 (0.30%) of those with hypochromic microcytic red
cell indices, normal iron studies, and HPLC results. A positive sickling test was seen in 48 participants and
confirmed by HPLC as a sickle cell trait with a prevalence of 0.4%. The consanguinity rate among couples
was 28.8%. Neither case of HbC or HbD trait, nor combined hemoglobinopathy, was detected in the current
study. Furthermore, no differences were found between the prevalence of both β thalassemia and sickle cell
trait with either sex and/or religion, with a p-value of 0.07, 0.07, 0.532, and 0.78, respectively.
Conclusion: The prevalence of hemoglobinopathy in Zakho city is lower than in other regions of Iraq but
still constitutes a significant burden on health services and financial resources. Careful interpretations of
red cell indices, together with intensified premarital screening and counseling programs, coupled with an
urgent need to increase awareness about the effects of consanguinity marriages on the prevalence of
autosomal recessive disorders, can further reduce the incidence of hemoglobinopathies.
2021
COVID-19 antibody seroprevalence in Duhok, Kurdistan Region, Iraq: a population-based study
2021-01
medRxiv
This population-based study aimed to evaluate the seroprevalence of antibodies to SARS-CoV-2 in Duhok City, Kurdistan Region of Iraq
2020
The Prevalence of Hepatitis B and C Virus Infections in the Couples Attending a Premarital Screening Program in Zakho City, Kurdistan Region of Iraq
2020-04
Journal Zahedan Journal of Research in Medical Sciences (القضية : 2) (الحجم : 23)
Hepatitis B and C virus (HBV and HCV) infections are major global health issues and the leading causes of liver cirrhosis and hepatocellular carcinoma
2019
The prevalence of hepatitis B and C virus in healthy women in Zakho city, Kurdistan Region of Iraq: a brief report
2019-12
Journal of Kermanshah University of Medical Sciences (القضية : 4) (الحجم : 23)
Infections with hepatitis B virus (HBV) and hepatitis C virus (HCV) are major global public health problems. Infection with such viruses is commonly associated with liver cirrhosis and hepatocellular carcinoma
The Distributions of HCV Genotypes in Hemodialysis Patients in Iraq
2019-10
Iranian Journal of Medical Microbiology (الحجم : 13)
During the study period between May 2017 and May 2019, 255 patients were recruited. Recruiting patients were undergoing regular hemodialysis for renal failure in seven dialysis centers in Medical City Hospital, Al-Karama Teaching Hospital, Al-Kadymia Teaching Hospital-Baghdad, Al-Basra Teaching Hospital, Duhok dialysis center and Zakho dialysis center. A 5cc syringe and needle were used to obtain five ml of blood from subjects. Then, the samples were centrifuged at 1500 rpm for 3 min to obtain serum
2016
• Doppler- Defined Pulmonary Hypertension in Sickle Cell Anemia in Kurdistan, Iraq. PloS ONE 11(9):e0162036. doi:10.1371/journal.pone.0162036.
2016-09
Plos ONE (الحجم : 9)
To determine the frequency, clinical and laboratory associations of pulmonary hypertension
in Iraqi Kurds with sickle cell anemia, a total of ninety four such patients attending a major
hemoglobinopathy center in Iraqi Kurdistan were enrolled. All patients were re-evaluated
clinically and had their blood counts, HbF, serum ferritin, LDH, renal and liver function
assessed. Transthoracic Doppler echocardiography with measurement of tricuspid valve
regurgitant jet velocity (TRV) was performed. A TRV in excess of 2.8 m/s was considered
for the purposes of this study as indicative of pulmonary hypertension (PH). The prevalence
of TRV in excess of 2.8m/s was 10.6%. By univariate analysis: significantly higher reticulocyte
count, more frequent blood transfusions and pain episodes were encountered in the
PH group as compared to the non-PH group (p = 0.001, 0.045 and 0.02 respectively). Moreover,
PH patients had significantly higher mean right atrial area, left atrial size, E wave/A
wave ratio and ejection fraction by echocardiography (p = 0.027, 0.037, <0.001 and 0.008
respectively). Except for reticulocyte count none of the other parameters remained significant
by multivariate analysis (p = 0.024). In conclusion the current study revealed that pulmonary
hypertension is rather frequent among Iraqi Kurds with sickle cell anemia, and
identified reticulocyte count as an independently associated parameter with PH in this population.
Future prospective studies including right heart catheterization and appropriate medical
intervention are warranted.
2010
• Prevalence and Molecular Characterization of Glucose-6-Phosphate Dehydrogenase Deficient Variants among the Kurdish population of Northern Iraq. BMC Blood Disorders 2010, 10.6. biomedcentral.com/1471-2326/10/6.
2010-07
BMC Blood Disorder (الحجم : 9)
Background: Glucose-6-Phosphate dehydrogenase (G6PD) is a key enzyme of the pentose monophosphate pathway,
and its deficiency is the most common inherited enzymopathy worldwide. G6PD deficiency is common among Iraqis,
including those of the Kurdish ethnic group, however no study of significance has ever addressed the molecular basis
of this disorder in this population. The aim of this study is to determine the prevalence of this enzymopathy and its
molecular basis among Iraqi Kurds.
Methods: A total of 580 healthy male Kurdish Iraqis randomly selected from a main regional premarital screening
center in Northern Iraq were screened for G6PD deficiency using methemoglobin reduction test. The results were
confirmed by quantitative enzyme assay for the cases that showed G6PD deficiency. DNA analysis was performed on
115 G6PD deficient subjects, 50 from the premarital screening group and 65 unrelated Kurdish male patients with
documented acute hemolytic episodes due to G6PD deficiency. Analysis was performed using polymerase chain
reaction/restriction fragment length polymorphism for five deficient molecular variants, namely G6PD Mediterranean
(563 C→T), G6PD Chatham (1003 G→A), G6PD A- (202 G→A), G6PD Aures (143 T→C) and G6PD Cosenza (1376 G→C),
as well as the silent 1311 (C→T) mutation.
Results: Among 580 random Iraqi male Kurds, 63 (10.9%) had documented G6PD deficiency. Molecular studies
performed on a total of 115 G6PD deficient males revealed that 101 (87.8%) had the G6PD Mediterranean variant and
10 (8.7%) had the G6PD Chatham variant. No cases of G6PD A-, G6PD Aures or G6PD Cosenza were identified, leaving 4
cases (3.5%) uncharacterized. Further molecular screening revealed that the silent mutation 1311 was present in 93/95
of the Mediterranean and 1/10 of the Chatham cases.
Conclusions: The current study revealed a high prevalence of G6PD deficiency among Iraqi Kurdish population of
Northern Iraq with most cases being due to the G6PD Mediterranean and Chatham variants. These results are similar to
those reported from neighboring Iran and Turkey and to lesser extent other Mediterranean countries.
الرجوع