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Full-Text Articles in Pathological Conditions, Signs and Symptoms

Higher Entropy Observed In Sars-Cov-2 Genomes From The First Covid-19 Wave In Pakistan, Najia Karim Ghanchi, Asghar Nasir, Kiran I. Masood, Syed Hani Abidi, Syed Faisal Mahmood, Akber Kanji, Safina Abdul Razzak, Waqasuddin Khan, Saba Shahid, Maliha Yameen, Ali Raza, Javaria Ashraf, Zeeshan Ansar Ahmed, Mohammad Buksh Dharejo, Nazneen Islam, Zahra Hasan, Rumina Hasan Aug 2021

Higher Entropy Observed In Sars-Cov-2 Genomes From The First Covid-19 Wave In Pakistan, Najia Karim Ghanchi, Asghar Nasir, Kiran I. Masood, Syed Hani Abidi, Syed Faisal Mahmood, Akber Kanji, Safina Abdul Razzak, Waqasuddin Khan, Saba Shahid, Maliha Yameen, Ali Raza, Javaria Ashraf, Zeeshan Ansar Ahmed, Mohammad Buksh Dharejo, Nazneen Islam, Zahra Hasan, Rumina Hasan

Department of Pathology and Laboratory Medicine

Background: We investigated the genome diversity of SARS-CoV-2 associated with the early COVID-19 period to investigate evolution of the virus in Pakistan.
Materials and methods: We studied ninety SARS-CoV-2 strains isolated between March and October 2020. Whole genome sequences from our laboratory and available genomes were used to investigate phylogeny, genetic variantion and mutation rates of SARS-CoV-2 strains in Pakistan. Site specific entropy analysis compared mutation rates between strains isolated before and after June 2020.
Results: In March, strains belonging to L, S, V and GH clades were observed but by October, only L and GH strains were present. The …


Our Experience Of Treating Adult Bone Lymphoma, A Retrospective Cross-Sectional Study In A Tertiary Care Center, Aga Khan University Hospital, Karachi, Masood Umer, Muhammad Younus Khan Durrani, Javeria Saeed, Nasir Ud Din Aug 2021

Our Experience Of Treating Adult Bone Lymphoma, A Retrospective Cross-Sectional Study In A Tertiary Care Center, Aga Khan University Hospital, Karachi, Masood Umer, Muhammad Younus Khan Durrani, Javeria Saeed, Nasir Ud Din

Section of Orthopaedic Surgery

Objective: To determine the experience at the Aga Khan University Hospital in diagnosing and treating adult patients with primary lymphoma of bone.
Methodology: All patients with Primary lymphoma of bone (PLB) that were diagnosed and/or treated at Aga Khan University Hospital, Karachi from 2005 to 2019 were included as part of this study.
Results: There were 17 patients with PLB including 13 (76.5%) males and 4 (23.5%) females with a mean age of 44 ± 16.5 years. Nine patients were between 30-59 years of age at diagnosis. The mean follow-up time of patients was 80±46.7 months. Six patients had tumours …


Establishing Reference Interval For Thyroid-Stimulating Hormone In Children Below Two-Year Ages In Pakistani Population, Siraj Muneer, Imran Siddiqui, Hafsa Majid, Lena Jafri, Khadija N Humayun, Sibtain Ahmed, Aysha Habib Khan Jul 2021

Establishing Reference Interval For Thyroid-Stimulating Hormone In Children Below Two-Year Ages In Pakistani Population, Siraj Muneer, Imran Siddiqui, Hafsa Majid, Lena Jafri, Khadija N Humayun, Sibtain Ahmed, Aysha Habib Khan

Department of Pathology and Laboratory Medicine

Introduction: Reference intervals (RIs) of thyroid-stimulating hormone (TSH) and free thyroxine (FT4) are age, assay and population specific. Currently, the age and assay-specific RIs for TSH are not available for children under two years of age. This study aimed to establish reference intervals for serum concentrations of TSH and FT4 in healthy children aged 1-24 months as per CLSI C28-A3 guidelines.
Methods: This prospective cross-sectional study was conducted in children from 1 to 24 months visiting the clinical laboratory for serum vitamin D testing but without any recent illness, hospitalization, medication and history of maternal thyroid diseases from August 2018 …


Indirect Determination Of Serum Creatinine Reference Intervals In A Pakistani Pediatric Population Using Big Data Analytics, Sibtain Ahmed, Jakob Zierk, Imran Siddiqui, Aysha Habib Khan Jul 2021

Indirect Determination Of Serum Creatinine Reference Intervals In A Pakistani Pediatric Population Using Big Data Analytics, Sibtain Ahmed, Jakob Zierk, Imran Siddiqui, Aysha Habib Khan

Department of Pathology and Laboratory Medicine

Background: The indirect methods of reference intervals (RI) establishment based on data mining are utilized to overcome the ethical, practical challenges and the cost associated with the conventional direct approach.
Aim: To generate RIs for serum creatinine in children and adolescents using an indirect statistical tool.
Methods: Data mining of the laboratory information system was performed for serum creatinine analyzed from birth to 17 years for both genders. The timeline was set at six years from January 2013 to December 2018. Microsoft Excel 2010 and an indirect algorithm developed by the German Society of Clinical Chemistry and Laboratory Medicine's Working …


Determination Of Reference Interval (Ri) Of Spot Urinary Oxalate To Creatinine Ratio In Children Of Pakistani Origin Under Six Years Of Age: A Cross-Sectional Study, Syed Bilal Hashmi, Lena Jafri, Jamsheer Jehangir Talati, Hafsa Majid, Saqib Hamid Qazi, Aysha Habib Khan Mar 2021

Determination Of Reference Interval (Ri) Of Spot Urinary Oxalate To Creatinine Ratio In Children Of Pakistani Origin Under Six Years Of Age: A Cross-Sectional Study, Syed Bilal Hashmi, Lena Jafri, Jamsheer Jehangir Talati, Hafsa Majid, Saqib Hamid Qazi, Aysha Habib Khan

Department of Pathology and Laboratory Medicine

Background: The gold standard screening method of hyperoxaluria in children is using 24-hour urine collection. Urine collection may be cumbersome and challenging for children. Reference intervals (RI) of oxalate for the Pakistani population are not readily available. Therefore we aimed to determine the oxalate to creatinine ratio (Ox: Cr) for Pakistani children <6 years of age.
Materials and methods: A cross-sectional study was conducted at Aga Khan University from June 2018 to October 2019. Random urine samples from apparently healthy children < 6 years were collected and stored at -30°C until analysis after adding 6M HCl. Oxalate was measured on Micro lab 300 using a kit based on oxalate oxidase principle, while creatinine was measured by kinetic Jaffe reaction. Data was analyzed by EP evaluator and SPSS 23. Ox: Cr ratio was calculated and reported with 90% confidence interval (CI) and interquartile range (IQR).
Results: The mean age of study subjects (n=120) was 29 ±22.3 months with an M: F ratio of 1:1. Children of various ethnicities …


Gliosarcoma In Patients Under 20 Years Of Age. A Clinicopathologic Study Of 11 Cases And Detailed Review Of The Literature, Nasir Ud Din, Hira Ishtiaq, Shabina Rahim, Jamshid Abdul Ghafar, Zubair Ahmad Feb 2021

Gliosarcoma In Patients Under 20 Years Of Age. A Clinicopathologic Study Of 11 Cases And Detailed Review Of The Literature, Nasir Ud Din, Hira Ishtiaq, Shabina Rahim, Jamshid Abdul Ghafar, Zubair Ahmad

Department of Pathology and Laboratory Medicine

Background: Gliosarcoma is a rare variant of IDH- wild type glioblastoma with both glial and mesenchymal differentiation. It accounts for approximately 2% of glioblastomas and has a poor prognosis similar to that of classic glioblastoma. It is seen mostly between 40 and 60 years of age with a mean age over 50 years. Pediatric gliosarcoma is even rarer than gliosarcoma in adults. We describe the clinicopathological features of gliosarcoma in patients under 20 years of age and determine whether there are significant differences from gliosarcoma in adults. We also present detailed review of published literature on pediatric gliosarcoma.
Methods: Slides …