1. To assess the value of serum Pentraxin-3 and high sensitive CRP in females with normal pregnancy and females with gestational diabetes mellitus in second trimester of pregnancy.
2. To study correlations between serum Pentraxin-3 and High sensitive CRP in gestational diabetes.

Gestational diabetes mellitus (GDM) refers to abnormal glucose metabolism that occurs or is discovered during pregnancy, it can cause multiple poor outcomes and increase maternal and child prevalence and mortality.

GDM can increase the risk of type 2 diabetes mellitus (T2DM) and cardiovascular diseases in pregnant women, and the risk of metabolic disorders in their offspring is high, so it's called a disease that affects two generations.(1) The relationship between maternal hyperglycemia and fetal macrosomia together with other complications has been confirmed.(2) Women with GDM have a higher long-term risk of type 2 diabetes mellitus.(3) Pentraxin 3 (PTX3) and high sensitive CRP are both the acute phase proteins belonging to the pentraxin family but with different biological characteristics, CRP belongs to the short PTX, which is an acute phase protein synthesized by the hepatocytes when the body is stimulated by microbial invasion or tissue damage.(4) PTX3 is a long-chain PTX protein. A variety of tissue cells can produce PTX3 under the stimulation of pro-inflammatory factors, including the endothelial cells, fibroblasts, monocytes, adipocytes, etc.(5,6) There is one study(Changes of serum pentraxin-3 and hypersensitive CRP levels during pregnancy and their relationship with gestational diabetes mellitus , 2019) , that has come to PTX3 and hs-CRP may be related to the pathogenesis of GDM, and they are significantly increased in the second trimester, which provides a new idea for early prevention and treatment of GDM .

Inclusion Criteria:

1. Pregnant women.
2. Diagnosed GDM. 3Gestational age >20weeks

Exclusion Criteria:

1. Women with pregestational diabetes .
2. Women with chronic diseases.
3. Twin pregnancy.