The therapeutic significance of bioengineering proteins has increased dramatically as a new generation of pharmacological drug with a great potential in medical treatment. Protein engineering has improved the use of new non immunoglobulin affinity proteins. The designed ankyrin repeat proteins abbreviated as DARPins is a classical example. These molecules have smaller structural size, unlike immunoglobulins, but similar target affinity is of great significance. Such molecules get more binding specificity and greater thermodynamic stability. These attributes made DARPins a favorite player in diagnostics and therapeutics of cancer. How DARPins are improved into vigorous and versatile scaffold for binding protein and selected by ribosome and phage display along with related aspects is discussed in this review.
Intestinal hypomotility is a common late complication in infants with acute diarrhoeal disease in pakistan. Among the infants admitted to our gastrointestinal unit with a history of acute diarrhoea, 35% developed abdominal distension and 12% developed the full clinical picture of paralytic ileus. The infants with ileus were treated with decompression and total parenteral nutrition; in this group the mortality rate was 25%. We compared 30 infants who developed ileus (group A) with an age-matched control group of infants (group B) who were admitted because of acute diarrhoea but did not develope ileus. The use of antimotility drugs was significantly more frequent in group A. Serum-K was not different in in group A (3.92 +/- 0.22 mmol/l) and group B (4.32 +/- 0.18 mmol/1). However, there were more patients who had serum-K below 3 mmol/l in group A (8/30) than in group B (5/30). We conclude that the use of antimotility drugs predisposes to the development of ileus in infants with acute diarrhoea. Hypokalemia may contribute to ileus in a few cases but is generally not a prerequisite.
Tetanic convulsions are not uncommon among severely dehydrated children in the developing countries. This raises the question whether these children have disturbances in the homeostasis of divalent ions. Serum values are reported of calcium, magnesium, phosphorus, sodium and potassium, as well as blood pH in children below 3 years of age with acute watery diarrhoea and with an estimated weight loss of about 10%. The study was performed on dehydrated children with (DC) or without (D) convulsions. Values were obtained on admission and following rehydration therapy (RT). On admission serum calcium was low in both D and DC children. Serum phosphorus was likewise elevated in both D and DC children. Serum magnesium was slightly elevated in the DC but not in the D group. No patient had hypernatremia. During RT, serum calcium increased significantly and serum phosphorus decreased significantly in D and DC children. Serum calcium showed a significant inverse correlation with serum phosphorus and a significant direct correlation with blood pH. Treatment of DC children with i.v. calcium and i.m. magnesium had no immediate effect on the convulsions. Our conclusion is that severely dehydrated children will develop hypocalcemia. The cause may be a redistribution of calcium into the cells, parallelled by a redistribution of phosphorus from the intra- to the extracellular space.
The aim of this study was to evaluate the service quality of Pakistani university libraries in the context of the user satisfaction. A quantitative survey was conducted to collect data from postgraduate students. The multi-dimensional modified SERVQUAL structured questionnaire consisting of 23 statements was used as a data collection instrument. The results revealed that users were satisfied with the “Empathy” dimension, showing that users were satisfied with the behavior of library staff and the friendly environment between the users and the library personnel. However, there was a gap in the expected service quality and perceived service quality in the four dimensions of SERVQUAL (“Tangible,” “Reliability,” “Responsiveness,” and “Assurance”). The findings of the study would support university library professionals to improve web-based library services. The study would be a useful addition to the body of knowledge.
Objective: The objective of the present study was to determine the changes in the glucose level and lipid profile in patients withpolycystic ovarian syndrome (PCOS). Study Design: Descriptive study. Place and Duration of the study: This study was conducted atInstitute of Molecular Biology and Biotechnology, The University of Lahore from June 2009 to June 2010. Patients and Methods: Total 50patients with PCOS were included and 50 age-matched control subjects were also selected for comparison. Their glucose levels and lipidprofile were assessed using commercial kits. The data thus obtained was subjected to statistical analysis. Results: Significant differences(P<0.05) in fasting blood glucose level and individual parameters of lipid profile were observed in women with PCOS. A higher prevalence ofhypertriglyceridemia, hypercholesterolemia, higher LDL, lower HDL and higher fasting blood glucose levels was explored in PCOS womenthan controls. Conclusions: Abnormal glucose level and lipid profile in PCOS women showed that these women are at an increased risk ofdeveloping diabetes and subsequently cardiovascular diseases.
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