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Full-Text Articles in Internal Medicine

The Association Of Hla-Drb Genes And The Shared Epitope With Rheumatoid Arthritis In Pakistan, K Hameed, S Bowman, E Kondeatis, R Vaughan, T Gibson Nov 1997

The Association Of Hla-Drb Genes And The Shared Epitope With Rheumatoid Arthritis In Pakistan, K Hameed, S Bowman, E Kondeatis, R Vaughan, T Gibson

Section of Internal Medicine

The association of particular HLA-DR alleles and the shared epitope with rheumatoid arthritis (RA) is now well established. The strength of these links varies between races. Furthermore, the proposition that the presence of the shared epitope is indicative of severe disease has been more difficult to sustain in non-Europeans. This study examines the frequency of HLA-DR and HLA-DRB1 amongst Pakistanis for the first time. Using the polymerase chain reaction (PCR) and sequence-specific oligonucleotide probes (PCR-SSOP) and primers (PCR-SSP), HLA-DR phenotype and genotype frequencies were ascertained in 86 RA hospital out-patients and 79 healthy controls matched for age, gender and ethnicity. …


Metabolically Inactive Insulin Analog Prevents Type I Diabetes In Prediabetic Nod Mice, Dennis G. Karounos, J. Scott Bryson, D. A. Cohen Sep 1997

Metabolically Inactive Insulin Analog Prevents Type I Diabetes In Prediabetic Nod Mice, Dennis G. Karounos, J. Scott Bryson, D. A. Cohen

Internal Medicine Faculty Publications

The purpose of this study was to determine the relative importance of the metabolic effects of insulin for diabetes prevention by administering insulin or an inactive insulin analog by daily subcutaneous injections to prediabetic mice. A recombinant monomeric human insulin analog, which does not bind to the insulin receptor as a consequence of an alteration of a single amino acid at position 25 of the B chain, was shown to be equally effective at diabetes prevention as was intact insulin. In contrast to native insulin, the insulin analog did not cause hypoglycemia after subcutaneous injection. The insulin analog, however, protected …


Ultrastructure Of The May-Hegglin Anomaly, T Siddiqui Sep 1997

Ultrastructure Of The May-Hegglin Anomaly, T Siddiqui

Section of Internal Medicine

Ultrastructural features of the leucocytes in two patients suffering from the May-Hegglin anomaly were studied using electron microscopy. In both the cases, electron dense material parallel to the long axis of the inclusions were noted. Platelet ultrastructure was normal. A review of the literature indicates that the May-Hegglin anomaly is a heterogeneous condition both ultrastructurally and clinically.


An Epidemic Of Dengue Fever In Karachi--Associated Clinical Manifestations, J A. Qureshi, N J. Notta, N Salahuddin, V Zaman, J A. Khan Jul 1997

An Epidemic Of Dengue Fever In Karachi--Associated Clinical Manifestations, J A. Qureshi, N J. Notta, N Salahuddin, V Zaman, J A. Khan

Section of Internal Medicine

Dengue is a mosquito borne disease with worldwide distribution. Depending on virulence factors and host immune status, infection can manifest as a severe but non fatal viral syndrome or a rapidly progressive and a frequently fatal haemorrhagic fever. During the course of an outbreak of viral fever in Karachi, Pakistan from June, 1994 to September, 1995, we studied 145 cases admitted at the Aga Khan University Hospital. 43% of the cases were between the age group of 20-30 years, majority of these being male (75%). Amongst the clinical signs and symptoms, the most frequent findings were fever, vomiting and abdominal …