Free vascularized temporal parietal flap in hand surgery.

Free vascularized temporo-parietal fascia (TPF) flap is a flap of thin, pliable and vascularized tissue which can cover an area measuring up to 12 cm x 14 cm. The flap is harvested based on temporal vessels, which provide a smooth, gliding surface for tendon function and eliminates the need for secondary procedures usually required by the pedicled or bulky free vascularized myocutaneous flaps. The donor pedicle is long and consistent with an average diameter of 3 mm in adults.

Enzymes of B-ring-deoxy flavonoid biosynthesis in elicited cell cultures of "old man" cactus (Cephalocereus senilis).

Elicited cell cultures of the cactus Cephalocereus senilis produce a group of flavonoids with unsubstituted B-rings, including an aurone which represents a new class of phytoalexin. Preliminary enzymological studies indicated that the chalcone synthase (CHS) and chalcone isomerase (CHI) from cultures of C. senilis were active with cinnamoyl-CoA and 2',4',6'-trihydroxychalcone, respectively, probable intermediates for synthesis of flavonoids with unsubstituted B-rings.

The effect of intercarpal joint motion on wrist motion: are there key joints? An in vitro study.

The contribution of each intercarpal joint individually and as a member of a regional group to total wrist motion was analyzed in 10 fresh, frozen cadaver specimens. Each intercarpal joint had an effect on the total wrist motion, but the contribution of each to the different planes of motion was not equal. The scaphoid-capitate joint had a governing effect on the motion of a region comprised of scaphoid-trapezium, scaphoid-trapezoid, and scaphoid-capitate.

Ethylene is not involved in the blue light-induced growth inhibition of red light-grown peas.

Although the growth of intact plants is inhibited by irradiation with blue light, the growth rate of isolated stem segments is largely unaffected by blue light. We hypothesized that this loss of responsiveness was a result of ethylene production as part of the wounding response. However, we found no interaction between ethylene- and blue light-induced growth inhibition in dark- or red light-grown seedlings of pea (Pisum sativum L.

Median innervated hypothenar muscle: anomalous branch of median nerve in the carpal tunnel.

A hypothenar motor branch of the median nerve in the carpal tunnel was observed and its motor function was documented by direct intraoperative nerve stimulation in two patients having carpal tunnel releases. The hypothenar branch left the median nerve at the midcarpal tunnel area. It crossed the tunnel superficial to the flexor tendons and penetrated the transverse carpal ligament ulnarly to innervate the abductor digiti quinti.