Although drug or natural substance therapy may retard the progress of alopecia or prevent future hair loss, it may also accelerate hair loss when the medication is stopped after prolonged use. Conversely, the transplantation of human hair involves taking plugs of natural hair from areas in which occipital hair is growing and transplanting them to bald areas. However, the number of hairs that can be transplanted is limited in that only three such operations can generally

be performed. To overcome such problems, many researchers have attempted to revive hair follicles by culturing hair follicle cells or mesenchymal cells in vitro and then implanting them in the treatment area. (C) 2009 Elsevier B.V. All rights reserved.”
“Background:

The clinical presentation of hepatic artery thrombosis (HAT) post-liver transplantation (LT) varies considerably. Doppler

VDA inhibitor ultrasonography (Doppler US) is the first line investigation, with a diagnostic sensitivity for HAT as high as 92%. Because indocyanine green (ICG) elimination from the blood depends among other factors on the hepatic learn more blood flow, we hypothesized that plasma disappearance rate of indocyanine green (PDR-ICG) can be influenced by the flow in the hepatic artery. Thus, we evaluated the role of PDR-ICG measurement in HAT diagnosis in post-LT patients.

Patients and methods:

Fourteen liver transplant patients with no visible flow in the hepatic artery (Doppler US) were identified. Of the 14, seven patients had HAT confirmed by CT-angiography. The PDR-ICG measurement, an investigation routinely used in our center, was performed in all 14 patients.

Results:

The PDR-ICG in patients with HAT was significantly lower than in patients without HAT (5.8 +/- 4.3 vs. 23.8 +/- 7.4%/min, p = 0.0009). In patients with HAT, after the revascularization, the PDR-ICG value increased (5.8 +/- 4.3 vs. 15.6 +/- 3.5%/min, p = check details 0.006).

Conclusion:

The ICG elimination

may be an adjunct diagnostic tool in the management of patients with suspected HAT following LT.”
“Etch pits created by hydrochloric and phosphoric acid on cleaved CaF(2)(111) are investigated by scanning force microscopy (SFM). A geometric and dimensional analysis of the etch pits reveals two distinctly different types. Type-I etch pits evolve at dislocation defects, are pointed and their size and eccentricity is related to the angle between the dislocation and the surface. Type-II etch pits result from defects below the surface, are flat-bottomed for longer etching times and exhibit a characteristic ratio of depth and edge length depending on the type of etchant. An analysis of etch pit morphology allows an identification of the origin of an etch pit and a characterization of the associated defect structure. (c) 2010 American Institute of Physics. [doi: 10.1063/1.