[Studies on the genetic diathesis of asthma bronchial].

To study the association of genes polymorphisms in glutathione S-transferase M1 and T1 with asthma bronchial. The distribute frequency of allele(+) and allele(o) between GSTM1 and GSTT1 of 60 patients asthma bronchial and 60 control groups in Tangshan was studied with PCR. The result shown GSTM1 deficiency allele(0/0) frequency of asthma bronchial was 81.

[The relationship of angiotensin I-converting enzyme gene polymorphism with diabetic retinopathy and diabetes myocardial infarction].

Objective: To investigate the relationship of angiotensin I-converting enzyme (ACE) gene polymorphism to diabetic retinopathy and diabetes myocardial infarction.

Methods: ACE insertion/deletion(I/D) polymorphism was determined by PCR.

Results: No evidence showed that ACE gene was associated with diabetic retinopathy.