Venoconstrictor responses to activation of bradykinin-sensitive pericardial afferents involve the region of the hypothalamic paraventricular nucleus.

Veins are important in the control of venous return, cardiac output, and cardiovascular homeostasis. However, the effector systems modulating venous function remain to be fully elucidated. We demonstrated that activation of bradykinin-sensitive pericardial afferents elicited systemic venoconstriction.

Hemodynamic patterns associated with activation of bradykinin-sensitive pericardial afferents.

The heart is endowed with reflexogenic areas capable of powerful blood pressure responses. Relatively little work has studied the hemodynamic mechanisms underlying these responses and whether these are sexually dimorphic. We hypothesized that activation of bradykinin-sensitive pericardial afferents would produce a sexually dimorphic cardiac output response.

Green Synthesis of Transition-Metal Nanoparticles and Their Oxides: A Review.

In recent years, many researchers have begun to shift their focus onto the synthesis of nanomaterials as this field possesses immense potential that may provide incredible technological advances in the near future. The downside of conventional synthesis techniques, such as co-precipitation, sol-gel and hydrothermal methods, is that they necessitate the use of toxic chemicals, produce harmful by-products and require a considerable amount of energy; therefore, more sustainable fabrication routes are sought-after. Biological molecules have been previously utilized as precursors for nanoparticle synthesis, thus eliminating the negative factors involved in traditional methods.

[Proximal osseous integration in THR using the cementless Vektor-Titan stem: medium- and long-term results].

Objective Of The Study: The objective of this study is to establish the medium-term and long-term clinical and radiological results with the cementless Vektor-Titan stem. Special consideration has been given to evaluate the extent to which the implant design achieves proximal stress transfer, thus avoiding stress shielding in the proximal femur.

Material And Methods: From October 10, 1996, to May 18, 2000, 432 Vektor-Titan stems were implanted in 348 patients in the Wichernhaus Orthopaedic Clinic at Rummelsberg Hospital.