Relationship between cytokine levels and coronary artery disease in women.

Inflammation is thought to have a role in the pathogenesis of atherosclerotic coronary artery disease (CAD), and the measurement of markers of inflammation has been suggested to improve the identification of individuals at risk for this disease. The incidence of CAD in women is not accounted for by conventional risk factors, and the association of CAD and the antiinflammatory cytokine transforming growth factor beta1 (TGF-beta1) in this population is unknown. Associations among TGF-beta1, the inflammatory cytokine tumor necrosis factor alpha (TNF-alpha), and CAD severity in inner city women were examined.

Treatment of acne scarring.

One of the most distressing side effects of acne vulgaris is the development of acne scars. In this article, the authors discuss the history of and current modalities in use for the treatment of acne scars. The discussion includes resurfacing, dermabrasion, laser surgery, peels, punch excisions, and the use of fillers.

Esophageal cancer: an unusual endoscopic appearance and presentation.

Esophageal cancer in advanced stages grows to occlude the esophageal lumen; presenting symptoms include dysphagia and weight loss. Esophageal cancer rarely grows to occupy a narrow column of the esophagus or manifests neurologic symptoms. We report the case of a 58-year-old man with a history of tobacco and alcohol abuse and chronic obstructive airway disease who presented with headaches, left-sided weakness, unsteady gait, and weight loss.

Cardiovascular disease in patients with diabetes: clinical considerations.

Cardiovascular disease is the major cause of morbidity and mortality in patients with diabetes. Diabetic individuals have a 200% to 400% greater risk for vascular disease than nondiabetics, with a disproportionately greater burden of disease complications in non-white minorities. Although the atherosclerotic plaques in the two groups are similar, diabetics have more severe and more diffuse disease than nondiabetics.

Impact of tonsillectomy and adenoidectomy on child behavior.

Objective: To measure the impact of tonsillectomy and adenoidectomy (T&A) on children's behavioral and emotional problems using a standardized assessment.

Design: Prospective study.

Setting: Tertiary care children's hospital.

Role of metabotropic glutamate receptors in epilepsy.

Considerable information is available regarding the role of ionotropic glutamate receptors in the generation of interictal spikes. Progress in the study of metabotropic glutamate receptors (mGluRs) makes clear that activation of these receptors can contribute greatly to seizure discharges and epileptogenesis. The effects of activation of the different mGluR subgroups on neuronal hypersynchrony and the initiation and propagation of seizure discharges in hippocampal slices are discussed herein.

Histology and electron microscopy of explanted bifurcated endovascular aortic grafts: evidence of early incorporation and healing.

Purpose: To report an examination of explanted bifurcated endovascular aortic grafts for histologic evidence of early healing and incorporation.

Method: Two bifurcated endovascular aortic grafts composed of polycarbonate urethane and Elgiloy wire were explanted 42 and 21 days after successful endovascular exclusion of abdominal aortic aneurysms. Both patients expired from causes unrelated to endograft deployment.

The brain as a central key organ.

Sometimes progress is hard to see, when looking at the big picture, because there is very little of it. But sometimes progress is hard to see because the big picture is out of focus. When perioperative deaths ascribed to anaesthesia are in the order of 1 in 20,000 operations and even changes in major morbidity require massive sample sizes to detect, neuroanaesthesia's most emphatic yardstick of progress is too crude to measure advances that have occurred over the most recent decade.

Cardiac hypertrophy: signal transduction, transcriptional adaptation, and altered growth control.

Cardiac hypertrophy results from the enlargement of cardiac muscle and fibroblast cells. This abnormal pattern of growth can be elicited by a number of hypertrophic agents, such as cytokines and hormones that participate in normal cell-cell signaling events during development. Under conditions yet to be defined, these same signaling molecules can cause hypertrophy of the heart.

Prevention and treatment of adverse effects of corticosteroids in systemic lupus erythematosus.

Corticosteroid therapy has had a major impact on improvement in disease activity and long-term survival in patients with systemic lupus erythematosus (SLE). Unfortunately, the therapeutic advantages are accompanied by many manifestations of toxicity, some of which are short term and potentially reversible, while others cause chronic irreversible damage. Many of these features of toxicity have similar presentations to manifestations of SLE disease activity, and must be distinguished in the individual patient.

Early CT findings of Fournier's gangrene in a healthy male.

Early clinical identification of Fournier's gangrene is imperative to avoid delay in the aggressive surgical debridement, antibiotic therapy, and sometimes hyperbaric oxygen treatments. We report on the early computed tomography findings of a non-gas-forming Fournier's gangrene in a healthy male to aid urologists, surgeons, and radiologists in the recognition of this rapidly progressive and often fatal infection.

Hyperfiltration in African-American patients with type 2 diabetes. Cross-sectional and longitudinal data.

Objective: Hyperfiltration may play a role in the development of diabetic nephropathy. African-American patients with diabetes have more than a fourfold increase in end-stage renal disease. The purpose of this study is to evaluate the impact of hyperfiltration on renal function in African-American patients with type 2 diabetes.

Conformational changes of an Hsp70 molecular chaperone induced by nucleotides, polypeptides, and N-ethylmaleimide.

Hsp70 molecular chaperones are highly conserved ATPases that guide the folding and assembly of proteins in many cellular pathways. They use the energy of ATP binding and hydrolysis to regulate their interactions with hydrophobic regions of unfolded proteins. The activities and the conformations of the N-terminal nucleotide- and C-terminal polypeptide-binding domains of Hsp70s are coupled.

The push-pull action of dopamine on spatial tuning of the monkey retina: the effects of dopaminergic deficiency and selective D1 and D2 receptor ligands on the pattern electroretinogram.

Retinal dopamine depletion in monkeys using either systemic MPTP or 6-OHDA results in attenuated electroretinographic (ERG) responses to peak spatial frequency stimuli. Diverse dopamine receptors have been identified in the primate retina. ERG studies performed using Haloperidol (a mixed antagonist), L-Sulpiride (D2 antagonist) and CY 208-243 (a D1 agonist) cause spatial frequency dependent diverse effects.

Operative treatment of hip fractures in patients with renal failure.

The conditions of a hip fracture and renal failure cause particularly high mortality. Eight patients (average age, 63 years) who had operative treatment for nine hip fractures were studied retrospectively. Three had intertrochanteric fractures fixed with sliding compression screws, and five had femoral neck fractures (bilateral in one patient): two nondisplaced femoral neck fractures were fixed with percutaneous screws, and four displaced femoral neck fractures were treated with arthroplasties in three and percutaneous screws in one.

Protein kinase C isoform expression and function in transformed and non-transformed pancreatic acinar cell lines.

Members of the protein kinase C (PKC) family of multifunctional serine/threonine phosphorylating enzymes are believed to play a role in regulating cellular differentiation and proliferation in many cell types. In the present study, we examined the expression of PKC isoforms in non-transformed (BMRPA.430) and transformed (TUC3) rat pancreatic acinar cell lines and compared this to PKC expression in freshly dispersed acini from rat pancreas.

Catheter entrapment in the mitral valve apparatus requiring surgical removal: an unusual complication of radiofrequency ablation.

We describe a patient with Wolff-Parkinson-White syndrome in whom a steerable catheter became entrapped in the mitral valve apparatus, during radiofrequency ablation. Treatment consisted of surgical removed of the catheter. The occurrence of this previously unreported complication stresses the need for on-going monitoring of risk and benefits of electrophysiological interventions.

Prevalence, risk factors, and accuracy of cytologic screening for cervical intraepithelial neoplasia in women with the human immunodeficiency virus.

Objectives: The objective was to evaluate the sensitivity and specificity of cervical cytology in women infected with the human immunodeficiency virus (HIV), risk factors for abnormal cytology in HIV-infected and uninfected women, and risk factors for histologic diagnosis of cervical intraepithelial neoplasia (CIN) in HIV-infected women.

Methods: Methods included a cross-sectional analysis of cervical cytology, colposcopic impression, and histology in 248 HIV-infected women and multivariate analyses of risk factors for abnormal cytology in 253 HIV-infected and 220 uninfected women and risk factors for CIN in 186 HIV-infected women.

Results: The sensitivity and specificity of cytology for all CIN grades were 0.

Nonlinear effects of localized absorption perturbations on the light distribution in a turbid medium.

A theoretical model of photon propagation in a scattering medium is presented, from which algebraic formulas for the detector-reading perturbations (delta R) produced by one or two localized perturbations in the macroscopic absorption cross section (delta mu a) are derived. Examination of these shows that when delta mu a is titrated from very small to large magnitudes in one voxel, the curve traced by the corresponding delta R values is a rectangular hyperbola. Furthermore, while delta Rinfinity identical to lim delta mu a-->infinity delta R is dependent on the location of the detector with respect to the source and the voxel, the ratio delta R/ delta Rinfinity is independent of the detector location.

Protein and mRNA analysis of myosin heavy chains in the developing avian pectoralis major muscle.

While the existence of post-hatch and adult myosin heavy chain isoforms in the large, avian type IIB pectoralis major muscle has been clearly established, the number and nature of fast myosin heavy chains during in ovo development and the perihatch period have not been resolved. In the present study, developmental fast heavy chain proteins purified by high resolution anion-exchange have been characterized by sequence analysis of a unique CNBr peptide and by complementary mRNA analysis. The four proteins present at 15/16 days in ovo are shown to differ uniquely in primary structure.

The relationship of cocaine use and human immunodeficiency virus serostatus to incident sexually transmitted diseases among women.

Background And Objectives: To assess the incidence of sexually transmitted diseases (STD) in a group of heterosexual women as a function of human immunodeficiency virus (HIV) serostatus and to ascertain the effect of crack cocaine use on these relationships.

Study Design: At baseline, 445 HIV type 1 (HIV-1) seronegative and 232 seropositive women were provided interviews ascertaining demographic and behavioral risk factors. All participants were tested for Chlamydia trachomatis, Neisseria gonorrhoeae, and Trichomonas vaginalis at baseline and at 6-month intervals.

Islet injury induces neurotrophin expression in pancreatic cells and reactive gliosis of peri-islet Schwann cells.

Pancreatic islets are enveloped by a sheath of Schwann cells, the glial cells of the peripheral nervous system (PNS). The fact that Schwann cells of the PNS become reactive and express nerve growth factor (NGF) and other growth factors following axotomy suggested the possibility that peri-islet Schwann cells could become activated by islet injury. To test this hypothesis, we examined two animal models of islet injury.