Disease relevance of Psoas Muscles

• We therefore quantitated by point counting on ATPase histochemistry the numbers and areas of type 1 and 2 fibers in the diaphragm, external intercostal and psoas muscles of 37 SIDS and 20 control infants [1].
• In addition, the psoas muscles were spared in all 10 patients with McArdle's disease and were involved with atrophy in seven of the nine patients with acid maltase deficiency [2].
• OBJECTIVE: To identify the relationship between the use of anticoagulants, specifically heparin, and the development of iliacus and psoas muscle hematoma [3].
• The limitation appears to involve significant iliopsoas myofascial dysfunction manifested in tenderness, as shown by deep abdominal palpation of the psoas muscle, hip flexor contracture, pain elicited by the stretch maneuver of the spine and hip, and relative weakness of the psoas muscle when tested manually [4].
• With regard to complications, the first patient developed wound infection caused by methicillin-resistant Staphylococcus aureus and the second patient had abscess formation in the psoas muscle [5].

High impact information on Psoas Muscles

• Using A-filaments prepared from rat psoas muscle we have now found it possible to induce clear fraying of these filaments into subfilaments, by exposure of the preparation to very low ionic strength before contrasting with uranyl acetate [6].
• The changes in birefringence in the rigor to relax transition of single triton-extracted rabbit psoas muscle fibers have been investigated with quantitative polarized light techniques [7].
• We found that dissipation of this gradient by the proton ionophores gramicidin, nigericin, and carbonyl cyanide p-trichloromethoxyphenylhydrazone caused a rapid transient tension in skinned rabbit psoas muscle fibers [8].
• Aldose reductase from human psoas muscle. Affinity labeling of an active site lysine by pyridoxal 5'-phosphate and pyridoxal 5'-diphospho-5'-adenosine [9].
• Involvement of lysosomal proteases in the effect of insulin on protein degradation was evaluated by measuring cathepsin D activity in psoas muscle homogenates. "Free" enzyme activity increased as a result of perfusion while addition of insulin maintained this activity at the unperfused level [10].

Biological context of Psoas Muscles

• Aldose reductase from human psoas muscle. Purification, substrate specificity, immunological characterization, and effect of drugs and inhibitors [11].
• Kinetics of adenosine triphosphate hydrolysis by shortening myofibrils from rabbit psoas muscle [12].
• Effects of ethylene glycol and calcium on the kinetics of contraction induced by photo-release of low concentrations of ATP in rat psoas muscle fibres [13].
• ATP (1-1.2 mM) was photoreleased from caged ATP (5 mM) in skinned fibres from rat psoas muscle at 15-17 degrees C, to examine the effects of ethylene glycol (EG; 20% in solvent) on the kinetics of isometric contraction [14].
• As determined by statistical multivariate analysis, strains carrying rmpA were significantly associated with the hypermucoviscosity phenotype, and there was a significant correlation with purulent tissue infections, such as liver abscess and lung, neck, psoas muscle, or other focal abscess.Conclusion [15].

Anatomical context of Psoas Muscles

• Similarly, the fractional synthetic rates of protein in cardiac muscle, diaphragm, adductor muscle, psoas muscle, and hepatic tissue were increased (P less than 0.05) compared to those in animals that received only TPN [16].
• Gizzard myosin regulatory light chain (RLC) was labeled with the 6-isomer of iodoacetamidotetramethylrhodamine and exchanged into rabbit psoas muscle fibers [17].
• To study the relationships among these proteins, aggregates of thick myofilaments held together at the M line (A segments) have been prepared from fresh and glycerol extracted chicken pectoralis and rabbit psoas muscles and from fresh frog sartorius muscle [18].
• Chemical neurolysis of the lumbar plexus was performed with 10 ml of 10% aqueous phenol injected into the psoas muscle sheath [19].
• Single glycerol-extracted rabbit psoas muscle fibres have been slowly extended either in rigor or in the unhydrolysable ATP analogue, AMPPNP, and their sarcomere length, sarcomere structure and tension measured [20].

Associations of Psoas Muscles with chemical compounds

• An iodoacetamide spin label was used to label selectively two-thirds of the sulfhydryl-1 groups in glycerinated rabbit psoas muscle [21].
• The effects of a temperature jump (T-jump) from 5-7 degrees C to 26-33 degrees C were studied on tension and stiffness of glycerol-extracted fibers from rabbit psoas muscle in rigor and during maximal Ca2+ activation [22].
• Skinned muscle fibres of rabbit psoas muscle in rigor were incubated in solutions containing approximately equal to 30 microM-Ca2+ ions and P3-1-(2-nitro)phenylethyladenosine-5'-triphosphate, 'caged ATP', an inert photolabile precursor of ATP [23].
• Initiation of active contraction by photogeneration of adenosine-5'-triphosphate in rabbit psoas muscle fibres [23].
• Addition of MgADP to the bath increased isometric tension over a wide range of [Ca(2+)] in skinned fibers from rabbit psoas muscle [24].

Gene context of Psoas Muscles

• Quantification of carbonic anhydrase III and myoglobin in different fiber types of human psoas muscle [25].
• S-Adenosylmethionine decarboxylase has been purified from rat liver and psoas muscle, and significant differences between the enzyme forms present in these tissues were observed [26].
• The amount of slow, fast and fetal myosin in the diaphragm and psoas muscles was measured by electrophoresis to check the ATPase quantitation [1].
• Gizzard regulatory light chain was labeled with a nitroxide spin probe and exchanged for the native subunit, located in the myosin neck, in rabbit psoas muscle fibers [27].
• Findings of recurrent disease included masses in the vacant renal fossa, inability to visualize the inferior vena cava or aorta, and ipsilateral psoas muscle thickening [28].

Analytical, diagnostic and therapeutic context of Psoas Muscles

• The binding of fructose biphosphate aldolase to the thin filaments of glycerinated rabbit psoas muscle produces a significant change in its low-angle X-ray-diffraction pattern [29].
• Based on these techniques, we conducted major and minor psoas muscle phenol block (motor point block or intramuscular nerve block) under ultrasonic monitoring [30].
• We have attempted to perform fiber typing of human psoas muscle by immunohistochemistry, using monoclonal antibodies R11D10 (specific for cardiac and type I skeletal myosin) and MY-32 (specific for fast muscle fibers) on cryostat as well as on paraffin sections [31].

References