Humans ascending to high altitudes are submitted to sustained hypoxia (SH), activating peripheral chemoreflex with several autonomic and respiratory responses. Here we analyzed the effect of short-term SH (24 h, FIO210%) on the processing of cardiovascular and respiratory reflexes using an in situ preparation of rats. SH increased both the sympatho-inhibitory and bradycardiac components of baro...

Sclerosing hemangiomas (SH) of the lung are uncommon tumors and are thought to be benign. However, the biologic behavior of this tumor has not yet been characterized adequately. The clinicopathologic features were reviewed and analyzed for 16 cases of SH. The age of the patients ranged from 37 to 73 yr (mean 50.6 yr). There were fifteen female and one male patient. The SH located at the intrapa...

Activation and strain in the sternohyoideus (SH) were measured in vivo in five largemouth bass Micropterus salmoides. The SH is thought to actuate lower jaw depression, hyoid depression and suspensorial abduction during suction feeding in teleost fish. Sonomicrometry was used to measure fascicle shortening and lower jaw kinematics, while activity was measured by electromyography (EMG). SH fasci...

2. The nunmber of reactive SH groups/molecule in the haemoglobins studied approximate either to 2 or to 4. 3. The behaviour of the reactive SH groups differs from that of cysteine in three ways: (a) the rate of reaction of heavy-metal ions with the reactive SH groups is slower than with cysteine; (b) thiosulphate interferes with the reaction between Ag+ ions and the reactive SH groups of human ...

Aim of this commentary is to report the most recent views about natural history of subclinical hypothyroidism (SH) according to the different etiologies. In children with idiopathic SH the natural evolution is often favourable, with a high percentage of cases reverting to euthyroidism or remaining SH even after a prolonged follow-up. By contrast, the risk of a significant deterioration of thyro...

conclusions we believe that the sh state in chf patients may be associated with the impaired pattern of circulating emps, with the predominantly increased number of apoptotic-derived microparticles. background subclinical hypothyroidism (sh) is diagnosed biochemically by the presence of normal serum free thyroxine concentration, in conjunction with an elevated serum thyroid-stimulating hormone ...

A-type K+ currents are expressed in Xenopus oocytes injected with in vitro-synthesized transcripts from cDNAs for the Drosophila Shaker (Sh) locus. A single Sh gene product, possibly as a multimer, is sufficient for formation of functional A channels. Various Sh RNAs express A currents with distinct kinetic properties. An analysis of structure-function relationships shows that the conserved cen...

In the case of direct-illumination, we represent visibility at each azimuthal direction in the NLP basis, whereas the approach in [SN08] simply stores the maximum blocking angle. In order to construct the SH visibility per azimuthal wedge, we use the NLP-to-SH blending matrices, whereas the approach in [SN08] queries pre-computed 2D tables of linearly blended SH projections of individual SH wed...

Recently, a new alloantigen on IgG Fc receptor type IIIb (FcgRIIIb), SH, was described (Bux et al, Blood 89:1027, 1997). We identified three healthy individuals whose neutrophils reacted positively with the SH antiserum. The neutrophil antigen (NA) phenotype of all three donors was NA(11,21). Analysis of genomic DNA showed that the three donors were positive for the described SH-encoding mutati...

Chronic obstructive pulmonary disease (COPD) is characterized by airway obstruction, inflammation, and mucus hypersecretion, features that are common in bronchitis, emphysema, and often asthma. However, current rodent models do not reflect this human disease. Because genetically predisposed spontaneously hypertensive (SH) rats display phenotypes such as systemic inflammation, hypercoagulation, ...