[Hand dermatoglyphic traits and azoospermia in the Chinese Han males in Ningxia area].

Objective: To investigate the relationship between hand dermatoglyphic traits and azoospermia in the Chinese Han males in Ningxia area.

Methods: Using the inkpad prints, we obtained dermatoglyphics of both hands from 212 Han males in Ningxia area, including 106 azoospermia patients and 106 fathers as normal controls. We analyzed the photographs of the prints with the Image-Pro Plus 6.

Digit ratio (2D:4D) in Chinese women with gastric cancer.

Objectives: Digit ratio, especially the second-to-fourth digit ratio (2D:4D), is a proxy indicator for prenatal exposure and sensitivity to sexual hormones which may influence the susceptibility to certain cancers. The aim of the present study was to investigate whether there is a possible association between 2D:4D and gastric cancer (GCA) in north Chinese women.

Methods: Photographs of the left and right hands of 167 women (controls: 113; patients: 54) were collected.