In this manuscript, we review some of the most prominent
characteristics of inwardly remodeled resistance arteries including their changes in vascular passive diameter, wall thickness, and elastic properties. Then, we explore the known contribution of the different components of the vascular BGB324 wall to the characteristics of inwardly remodeled vessels, and pay particular attention to the role the vascular smooth muscle actin cytoskeleton may play on the initial stages of the remodeling process. We end by proposing potential ways by which many of the factors and mechanisms known to participate in the inward remodeling process may be associated with cytoskeletal modifications and participate in reducing the passive diameter of resistance vessels. “
“The spectrum of the laser Doppler signal contains information on speed distribution of particles moving in the volume interrogated by the photons traveling from the source to the detector. The measured laser Doppler spectrum represents superposition of spectra formed by distribution of Doppler frequency shifts scaled along the frequency
axis for different speeds of the moving particles. The method of spectrum decomposition was validated in phantom experiments and by assessment of speed distributions of red blood cells moving in microvascular network during venous and arterial occlusion as well as during thermal stimulation. “
“Lymphatic filariasis, one of the most debilitating diseases associated with the lymphatic system, affects over Selleck PLX3397 Pyruvate dehydrogenase a hundred million people worldwide and manifests itself in a variety of severe clinical pathologies. The filarial parasites specifically target the lymphatics and impair lymph flow, which is critical for the normal functions of the lymphatic system in maintenance of body fluid balance and physiological interstitial fluid transport. The resultant contractile dysfunction of the lymphatics causes fluid accumulation and lymphedema, one of the major pathologies associated with filarial infection. In this
review, we take a closer look at the contractile mechanisms of the lymphatics, its altered functions, and remodeling during an inflammatory state and how it relates to the severe pathogenesis underlying a filarial infection. We further elaborate on the complex host–parasite interactions, and molecular mechanisms contributing to the disease pathogenesis. The overall emphasis is on elucidating some of the emerging concepts and new directions that aim to harness the process of lymphangiogenesis or enhance contractility in a dysfunctional lymphatics, thereby restoring the fluid imbalance and mitigating the pathological conditions of lymphatic filariasis. “
“HIV-1 infection of the CNS is associated with impairment of CBF and neurocognitive function, and accelerated signs of aging.