Figure 1: Examples of the epidermis within acupuncture point Lu11 (A and C) and next to it (B and D) on the same section, stained with antibodies against connexin 26 and connexin 43. Sagital sections of the skin of a 80 years old human donor. Co = stratum corneum; Spi = Stratum spinosum; Bas=Stratum basale; original magnification x400. Note the increase of connexin 26 in the Stratum spinosum and basale. The increase of connexin 43 in this sample is not as prominent, but there is more intensity in the vascular wall within the dermis (arrows).