12 research outputs found
The Relationship Between Religion, Illness and Death in Life Histories of Family Members of Children With Life-Threatening Diseases
Overcoming Challenges of Hepatitis C Virus Envelope Glycoprotein Production in Mammalian Cells
Can a less pejorative Chinese translation for schizophrenia reduce stigma? A study of adolescents' attitudes toward people with schizophrenia
Are Older Patients More Satisfied With Hospital Care Than Younger Patients?
OBJECTIVE: Determine relationships between age, self-reported health, and satisfaction in a large cohort of hospitalized patients. DESIGN: Cross-sectional survey. SETTING: Thirty-one hospitals in a large Midwestern metropolitan area. PATIENTS/PARTICIPATION: Randomly selected medical and surgical patients (N = 64,900; mean age, 61 years; 56% female; 84% white) discharged during specific time periods from July 1990 to March 1995 who responded to a mailed survey (overall response rate, 48%). MEASUREMENTS AND MAIN RESULTS: Patients' overall ratings of hospital quality and satisfaction with 5 aspects of care (physician care, nursing care, information provided, discharge instructions, and coordination of care) were measured by a validated survey, which was mailed to patients after discharge. Analyses compared satisfaction in 5 age groups (18 to 35, 36 to 50, 51 to 65, 66 to 80, and > 80 years). Scores for the 5 aspects of care initially increased with age (P < .001) and then declined (P < .001). A similar relationship was found in analyses of the proportion of patients who rated overall quality as “excellent” or “very good.” Satisfaction was also higher in patients with better self-reported health (P < .001). In analyses of patients with poor to fair health, satisfaction scores peaked at age 65 before declining. However, for patients with good to excellent health, scores peaked at age 80. Moreover, declines in satisfaction in older patients were lower in patients with better health. These findings were consistent in multivariable analyses adjusting for potential confounders. CONCLUSIONS: Satisfaction exhibits a complex relationship with age, with scores increasing until age 65 to 80 and then declining. This relationship was consistent across individual satisfaction scales, but was modified by health status. The results suggest that age and health status should be taken into account when interpreting patient satisfaction data
Lentiviral transduction of mammalian cells for fast, scalable and high-level production of soluble and membrane proteins
Structural, biochemical and biophysical studies of eukaryotic soluble and membrane proteins require their production in milligram quantities. Although large-scale protein expression strategies based on transient or stable transfection of mammalian cells are well established, they are associated with high consumable costs, limited transfection efficiency or long and tedious selection of clonal cell lines. Lentiviral transduction is an efficient method for the delivery of transgenes to mammalian cells and unifies the ease of use and speed of transient transfection with the robust expression of stable cell lines. In this protocol, we describe the design and step-by-step application of a lentiviral plasmid suite, termed pHR-CMV-TetO2, for the constitutive or inducible large-scale production of soluble and membrane proteins in HEK293 cell lines. Optional features include bicistronic co-expression of fluorescent marker proteins for enrichment of co-transduced cells using cell sorting and of biotin ligase for in vivo biotinylation. We demonstrate the efficacy of the method for a set of soluble proteins and for the G-protein-coupled receptor (GPCR) Smoothened (SMO). We further compare this method with baculovirus transduction of mammalian cells (BacMam), using the type-A γ-aminobutyric acid receptor (GABAAR) β3 homopentamer as a test case. The protocols described here are optimized for simplicity, speed and affordability; lead to a stable polyclonal cell line and milligram-scale amounts of protein in 3–4 weeks; and routinely achieve an approximately three- to tenfold improvement in protein production yield per cell as compared to transient transduction or transfection
