Background: Acute myocardial infarction (AMI) is one of the most common diagnoses in hospitalized patients. Increased plasma hemostatic markers were noted in acute myocardial infarction, indicating that the blood coagulation system is highly activated in those patients. Aims of the study: To study the level of intrinsic coagulation factors including (FVIII:C, FIX:C ,FXI:C ,FXII:C ) in patients with acute myocardial infarction. Type of the study: Cross –sectional study. Methods: Thirty patients (their age range is 48-68 years) were included in this study (9 female, 21 male) who were just admitted to the coronary care unit in AL-Yarmouk Teaching Hospital and diagnosed as having acute myocardial infarction patients, blood samples were taken from those patients . Twenty healthy subjects (6 female, 14 male) age and sex matched with the patients were included as a control group. The following investigations were done for both groups: 1.Packed cell volume(PCV%) .by microhaematocrit method. 2.FVIII:C assay. [ by parallel line bioassay of coagulationfactors]. 3.FIX:C assay. 4.FXI:C assay. 5.FXII:C assay. Results Mean FVIII:C (162.63%±17.22)was significantly (P value< 0.05)higher in patients with acute myocardial infarction than control group(94.70%±9.34).1-Mean FIX:C (151.20%±14.20) was significantly (P value <0.05) higher in acute myocardial infarction group than control group(94.10±8.51). 2-Mean FXI:C (146.30%±7.87) was significantly (P value <0.05) higher in acute myocardial infarction group than control group (102.00%±7.91). 3-Mean FXII:C(71.03±11.46) was significantly (P value <0.05) lower in acute myocardial infarction group than control group (119.00%±8.52). 4-There is inverse relationship between FXI:C and FXII:C in acute myocardial infarction group(P value -0.736). Conclusions Patients with acute myocardial infarction had significantly higher levels of FVIII:C,FIX:C,FXI:C than controls. FXII:C level was significantly lower in patients with acute myocardial infarction than control group. There is an inverse relationship between FXI:C and F XII:C in patients with acute myocardial infarction.
Evaluation of the Intrinsic Pathway of Coagulation in a Sample of Iraqi Patients with Acute Myocardial Infarction
acute MI
Intrinsic pathway
FVIII:C
FIX:C
FXI:C
FXII:C
Publication Date
Thu Jan 01 2026
Journal Name
Chalcogenide Letters
Structural and Optical Properties of Cu<sub>2</sub>ZnSn(S<sub>1−x</sub>Se<sub>x</sub>)<sub>4</sub> Nanostructures Thin Film for Photovoltaic Applications
Cu2
ZnSn(S1−x
Se
x)4
thin film
energy gap
dielectric constant
extinction coefficient
refractive index
Copper zinc tin sulfide selenide, Cu2 ZnSn(S1−x Se x)4 , absorbers are promising earth-abundant and environmentally benign materials for low-cost photovoltaic applications. This study investigates the structural and optical properties of Cu 2 ZnSn(S1−x Se x)4 nanostructured thin films prepared by pulsed laser deposition using melt-quenched targets with selenium compositions x = 0.0–1.0. X-ray diffraction revealed that films with low selenium content remained amorphous, whereas higher selenium incorporation promoted the formation of polycrystalline kesterite–stannite phases with preferred orientations along (112), (200), (220), and (312). The crystallite size increased from 12.3 to 17.9 nm as selenium reached x = 1.0, indicating enha
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