Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (272)
- Microbiology (232)
- Diseases (109)
- Oncology (97)
- Radiology (72)
-
- Public Health (58)
- Surgery (56)
- Pediatrics (54)
- Hematology (45)
- Pathological Conditions, Signs and Symptoms (44)
- Infectious Disease (26)
- Obstetrics and Gynecology (24)
- Neurology (22)
- Women's Health (20)
- Internal Medicine (18)
- Urology (18)
- Virus Diseases (18)
- Medical Sciences (15)
- Anatomy (14)
- Emergency Medicine (14)
- Gastroenterology (12)
- Pulmonology (12)
- Community Health and Preventive Medicine (11)
- Neurosurgery (11)
- Laboratory and Basic Science Research (10)
- Maternal and Child Health (10)
- Orthopedics (10)
- Keyword
-
- Pakistan (75)
- Kenya (34)
- Malaria (28)
- Tuberculosis (21)
- COVID-19 (20)
-
- Children (14)
- Breast cancer (13)
- Pathology (13)
- Plasmodium falciparum (13)
- Antimicrobial resistance (12)
- Diagnosis (11)
- Karachi (11)
- HIV (10)
- Histopathology (10)
- Immunohistochemistry (10)
- Tanzania (10)
- Africa (9)
- Epidemiology (9)
- MRSA (9)
- Cancer (8)
- Mortality (8)
- Mycobacterium tuberculosis (8)
- Vitamin D (8)
- SARS-CoV-2 (7)
- Drug resistance (6)
- Osteoporosis (6)
- Plasmodium vivax (6)
- Tumour (6)
- Anaemia (5)
- Breast (5)
- Publication Year
- Publication
-
- Department of Pathology and Laboratory Medicine (526)
- Pathology, East Africa (177)
- LABRAD - Departments of Pathology & Laboratory Medicine and Radiology Archives (44)
- Master of Medicine in Anatomic Pathology (24)
- Master of Medicine in Clinical Pathology (24)
-
- Department of Biological & Biomedical Sciences (14)
- Department of Paediatrics and Child Health (13)
- Section of Haematology/Oncology (11)
- Internal Medicine, East Africa (10)
- Community Health Sciences (8)
- Department of Radiology (8)
- Department of Medicine (7)
- Medical College Documents (7)
- Section of Neurosurgery (7)
- Department of Surgery Docs (6)
- Section of General Surgery (6)
- Section of Otolaryngology, Head & Neck Surgery (6)
- Imaging & Diagnostic Radiology, East Africa (5)
- Obstetrics and Gynaecology, East Africa (5)
- Section of Urology (5)
- Section of Diabetes, Endocrinology and Metabolism (4)
- Section of Pulmonary & Critical Care (4)
- Centre of Excellence in Women and Child Health (3)
- General Surgery, East Africa (3)
- Section of Internal Medicine (3)
- Section of Orthopaedic Surgery (3)
- Brain and Mind Institute (2)
- Department of Radiation Oncology (2)
- Haematology and Oncology, East Africa (2)
- Paediatrics and Child Health, East Africa (2)
- Publication Type
Articles 541 - 570 of 953
Full-Text Articles in Pathology
Harnessing Microbiome And Probiotic Research In Sub-Saharan Africa: Recommendations From An African Workshop, Gregor Reid, Nicholas Nduti, Wilbert Sybesma, Remco Kort, Tobias R. Kollmann, Rodney Adam, Hamadi Boga, Eric M. Brown, Alexandra Einerhand, Hani El-Nezami, Gregory B. Gloor, Irene I. Kavere, Johanna Lindahl, Amee Manges, Wondu Mamo, Rocio Martin, Amy Mcmillan, Jael Obiero, Pamela A. Ochieng’, Arnold Onyango, Stephen Rulisa, Eeva Salminen, Seppo Salminen, Antony Sije, Jonathan R. Swann, William Van Treuren, Daniel Waweru, Steve J. Kemp
Harnessing Microbiome And Probiotic Research In Sub-Saharan Africa: Recommendations From An African Workshop, Gregor Reid, Nicholas Nduti, Wilbert Sybesma, Remco Kort, Tobias R. Kollmann, Rodney Adam, Hamadi Boga, Eric M. Brown, Alexandra Einerhand, Hani El-Nezami, Gregory B. Gloor, Irene I. Kavere, Johanna Lindahl, Amee Manges, Wondu Mamo, Rocio Martin, Amy Mcmillan, Jael Obiero, Pamela A. Ochieng’, Arnold Onyango, Stephen Rulisa, Eeva Salminen, Seppo Salminen, Antony Sije, Jonathan R. Swann, William Van Treuren, Daniel Waweru, Steve J. Kemp
Pathology, East Africa
To augment capacity-building for microbiome and probiotic research in Africa, a workshop was held in Nairobi, Kenya, at which researchers discussed human, animal, insect, and agricultural microbiome and probiotics/prebiotics topics. Five recommendations were made to promote future basic and translational research that benefits Africans.
Β-Lactamase Production And Antimicrobial Susceptibility Pattern Of Moraxella Catarrhalis Isolates: Report From Pakistan, Sadia Omer Sheikh, Naima Fasih, Seema Irfan, Afia Zafar
Β-Lactamase Production And Antimicrobial Susceptibility Pattern Of Moraxella Catarrhalis Isolates: Report From Pakistan, Sadia Omer Sheikh, Naima Fasih, Seema Irfan, Afia Zafar
Department of Pathology and Laboratory Medicine
Objective: To assess the frequency of β-lactamase production and antimicrobial resistance in Moraxella catarrhalis isolated from clinical specimens in Pakistan. Methods: This cross sectional study (January to December 2010) was conducted in clinical microbiology laboratory of Aga Khan University Hospital. A total of 97 clinical respiratory specimens growing Moraxella catarrhalis were included. Frequency of β-lactamase production and antimicrobial resistance rates against ampicillin, erythromycin, ciprofloxacin and tetracycline were noted by performing minimum inhibitory concentration (MIC). MICs were calculated as MIC50 and MIC90.
Results: β-Lactamase production was detected in 84% of isolates, which correlated well with high MIC of …
Expression Of The Androgen Receptor, Pakt, And Ppten In Breast Cancer And Their Potential In Prognostication, Aisha Sultana, Romana Idress, Zulfiqar Ali Naqvi, Iqbal Azam, Shaista Khan, Anwar Ali Siddiqui, El Nasir Lalani
Expression Of The Androgen Receptor, Pakt, And Ppten In Breast Cancer And Their Potential In Prognostication, Aisha Sultana, Romana Idress, Zulfiqar Ali Naqvi, Iqbal Azam, Shaista Khan, Anwar Ali Siddiqui, El Nasir Lalani
Department of Pathology and Laboratory Medicine
BACKGROUND: Importance of androgen receptor (AR) as an independent prognostic marker in Pakistani women with breast cancer (BCa) remains unexplored. Our aim was to identify the expression and potential prognostic value of AR, its upstream regulator (pAkt) and target gene (pPTEN) in invasive BCa.
METHODS: This study used a cohort of 200 Pakistani women with invasive BCa diagnosed during 2002-2011. Expression of AR, pAkt and pPTEN was determined on formalin fixed paraffin embedded tissue sections by immunohistochemistry. The association of AR, pAkt and pPTEN with clinicopathological parameters was determined. Survival analyses were undertaken on patients with ≥ 5 years of …
Labrad : Vol 39, Issue 2 - December 2013, Aga Khan University Hospital, Karachi
Labrad : Vol 39, Issue 2 - December 2013, Aga Khan University Hospital, Karachi
LABRAD - Departments of Pathology & Laboratory Medicine and Radiology Archives
- Diagnosis of Inborn Errors of Metabolism in Pakistan
- Inherited Metabolic Disorders-Presenting as Metabolic Emergencies
- Role of Biochemical Genetics Laboratary in Evaluation of IEM
- Amino Acid Chromatography for the Diagnosis of Inborn Error of Metabolism
- Polymorphism in Methylenetetrahydrofolate Reductase (MTHFR) Gene
- Diagnosis of Tyrosinemia Type I
- Congential Hypothyroidism
- Congential Adrenal Hyperplasia, An Insight of Laboratory
- Inaugration Ceremony of Section of biochemical Genetics Laboratory
First Report Of Ndm-1-Producing Acinetobacter Baumannii In East Africa, Gunturu Revathi, Kristopher L. Siu, Po-Liang Lu, Li-Yueh Huang
First Report Of Ndm-1-Producing Acinetobacter Baumannii In East Africa, Gunturu Revathi, Kristopher L. Siu, Po-Liang Lu, Li-Yueh Huang
Pathology, East Africa
Background: The emergence of carbapenem-resistant Acinetobacter baumannii (CRAB) was observed in a Kenyan hospital from 2009 to 2010. Further investigation of the dissemination of CRAB isolates and the molecular characterization of associated resistance determinants were therefore performed.
Methods: Antibiotic susceptibilities were determined by broth microdilution and Etest. Metallo-blactamases were detected by Etest method. Clonal relationships were studied by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). b-Lactam and aminoglycoside resistance determinants and the clonal relatedness to widespread European clones were studied by PCR and sequencing.
Results: Sixteen CRAB isolates from 10 patients possessed six pulsotypes; half of the isolates …
Clinical Reasoning And Dual Mental Processing In Diagnostic Competence., M. Tariq, Syed Ahsan Ali
Clinical Reasoning And Dual Mental Processing In Diagnostic Competence., M. Tariq, Syed Ahsan Ali
Department of Medicine
No abstract provided.
A Study On The Geophylogeny Of Clinical And Environmental Vibrio Cholerae In Kenya, J. Kiiru, A. Mutreja, A. A. Mohamed, R. W. Kimani, J. Mwituria, R. O. Sanaya, J. Muyodi, Gunturu Revathi, J. Parkhill, N. Thomson, G. Dougan, S. Kariuki
A Study On The Geophylogeny Of Clinical And Environmental Vibrio Cholerae In Kenya, J. Kiiru, A. Mutreja, A. A. Mohamed, R. W. Kimani, J. Mwituria, R. O. Sanaya, J. Muyodi, Gunturu Revathi, J. Parkhill, N. Thomson, G. Dougan, S. Kariuki
Pathology, East Africa
Cholera remains a significant public health challenge in many sub-Saharan countries including Kenya. We have performed a combination of phylogenetic and phenotypic analysis based on whole genome DNA sequences derived from 40 environmental and 57 clinical V. cholerae from different regions of Kenya isolated between 2005 and 2010. Some environmental and all clinical isolates mapped back onto wave three of the monophyletic seventh pandemic V. cholerae El Tor phylogeny but other environmental isolates were phylogenetically very distinct. Thus, the genomes of the Kenyan V. cholerae O1 El Tor isolates are clonally related to other El Tor V. cholerae isolated elsewhere …
Comparison Of Hpv Dna Testing In Cervical Exfoliated Cells And Tissue Biopsies Among Hiv-Positive Women In Kenya, Hugo De Vuyst, Michael Chung, Lacopo Baussano, Nelly R. Mugo, Vanessa Tenet, Folkert J. Van Kemenade, Farzana S. Rana, Samah R. Sakr, Chris J.L.M. Meijer, Peter J.F. Snijders, Silvia Franceschi
Comparison Of Hpv Dna Testing In Cervical Exfoliated Cells And Tissue Biopsies Among Hiv-Positive Women In Kenya, Hugo De Vuyst, Michael Chung, Lacopo Baussano, Nelly R. Mugo, Vanessa Tenet, Folkert J. Van Kemenade, Farzana S. Rana, Samah R. Sakr, Chris J.L.M. Meijer, Peter J.F. Snijders, Silvia Franceschi
Pathology, East Africa
HIV-positive women are infected with human papillomavirus (HPV) (especially with multiple types), and develop cervical intraepithelial neoplasia (CIN) and cervical cancer more frequently than HIV-negative women. We compared HPV DNA prevalence obtained using a GP5+/6+ PCR assay in cervical exfoliated cells to that in biopsies among 468 HIV-positive women from Nairobi, Kenya. HPV prevalence was higher in cells than biopsies and the difference was greatest in 94 women with a combination normal cytology/normal biopsy (prevalence ratio, PR = 3.7; 95% confidence interval, CI: 2.4-5.7). PR diminished with the increase in lesion severity (PR in 58 women with high-grade squamous intraepithelial …
Labrad : Vol 39, Issue 1 - September 2013, Aga Khan University Hospital, Karachi
Labrad : Vol 39, Issue 1 - September 2013, Aga Khan University Hospital, Karachi
LABRAD - Departments of Pathology & Laboratory Medicine and Radiology Archives
- Immunophenotyping by Flowcytometry
- Chronic Lymphocytic Leukaemia: Diagnosis and Prognostic Factors
- Tumour Markers
- Role of Chemical Pathology in Screening and Diagnosis of Multiple Myeloma
- 1p/19q Deletion: Favourable Prognostic Marker for Oligodendroglioma
- EGFR Mutation Screening Test for Lung Cancer Patients
- Clinical Utility of BCR-ABL1 Kinase Domain Mutational Analysis
- Molecular Cytogenetic Testing for Acute Myeloid Leukaemia
- Diffuse Large B-Cell Lymphoma (DLBCL) Subgroups have Different Phenotype
Sentinel Node Localisation Using Pre-Operative Lymphoscintigraphy And Intraoperative Gamma Probe In Early Oral Cavity Cancer, Mubasher Ikram, Shabbir Akhtar, Montasir Junaid, Tariq Dhari, Maseeh-Uz Zaman, Riffat Hussain, Zubair Ahmad
Sentinel Node Localisation Using Pre-Operative Lymphoscintigraphy And Intraoperative Gamma Probe In Early Oral Cavity Cancer, Mubasher Ikram, Shabbir Akhtar, Montasir Junaid, Tariq Dhari, Maseeh-Uz Zaman, Riffat Hussain, Zubair Ahmad
Section of Otolaryngology, Head & Neck Surgery
Objectives: To assess the diagnostic value of sentinel lymph node localisation using pre-operative lymphoscintigraphy and intra-operative gamma probe radio localisation in Pakistani patients suffering from early stage squamous cell carcinoma of the oral cavity.
Methods: The prospective case series was conducted between September 2007 and April 2010 at the Aga Khan University Hospital, Karachi. It comprised patients with T1and T2 oral cavity cancer with clinically and radiologically negative neck. Pre-operative lymphoscintigraphy was performed one day before surgery and intra-operative gamma probe was used to detect sentinel node. Final histo-pathological evaluation was taken as the gold standard.
Results: The study comprised …
Population Genetics And Drug Resistance Markers: An Essential For Malaria Surveillance In Pakistan, Afsheen Raza, Mohammad Asim Beg
Population Genetics And Drug Resistance Markers: An Essential For Malaria Surveillance In Pakistan, Afsheen Raza, Mohammad Asim Beg
Department of Pathology and Laboratory Medicine
Plasmodium (P.) vivax is the prevalent malarial species accounting for 70% of malaria cases in Pakistan. However, baseline epidemiological data on P. vivax population structure and drug resistance are lacking from Pakistan. For population structure studies, molecular genetic markers, circumsporozoite protein (csp) and merozoite surface protein-1 (msp-1) are considered useful as these play an important role in P. vivax survival under immune and environmental pressure. Furthermore, these genes have also been identified as suitable candidates for vaccine development. While efforts for effective vaccine are underway, anti-malarial agents remain the mainstay for control. Evidence of resistance against commonly used anti-malarial agents, …
Illuminating The Dark Side--Vitamin D Status In Different Localities Of Karachi, Romaina Iqbal, Lena Jafri, Ali Haroon, Aysha Habib Khan
Illuminating The Dark Side--Vitamin D Status In Different Localities Of Karachi, Romaina Iqbal, Lena Jafri, Ali Haroon, Aysha Habib Khan
Department of Medicine
This study was conducted to determine the association between place of residence (grouped into neighbourhoods), and 25-hydroxy D (25[OH]D) levels of individuals of Karachi. Addresses of 4788 individuals tested for 25[OH]D at the clinical laboratory of the Aga Khan University (AKU), Karachi, from January 2007 to June 2008 were reviewed. The neighbourhoods were categorized into ten, based on locality attributes. A high overall prevalence (74%) of vitamin D deficiency (VDD) was observed. There was a significant difference (p-value < 0.01) between mean log 25[OH]D levels amongst neighbourhoods grouped according to distinct housing structure attributes and localities. A high frequency of VDD in all the studied localities of an urban city warrant dietary vitamin D supplementation and food fortification.
Malignant Vascular Tumours Associatedwith The Breast: A Study Of 7 Cases, Azizun-Nisa, Zeeshanuddin, Naila Kayani
Malignant Vascular Tumours Associatedwith The Breast: A Study Of 7 Cases, Azizun-Nisa, Zeeshanuddin, Naila Kayani
Department of Pathology and Laboratory Medicine
Angiosarcomas account for less than 0.05% of the malignant neoplasms of the breast. We present here 7 cases of malignant vascular neoplasms of the breast, including 2 cases of postmastectomy Stewart-Treves syndrome. In this case series, most of the patients were young. Tumour was bilateral at presentation in one case. The size of the tumours ranged from 1.6 cm to 11 cm. Although breast angiosarcomas are rare neoplasms, with the increasing use of radiation therapy for breast cancer patients, post-radiation skin lesions should not be ignored.
Neuropathogenic Escherichia Coli K1 Does Not Exhibit Proteolytic Activities To Exert Its Pathogenicity, Junaid Iqbal, Mehak Rajan, Ruqaiyyah Siddiqu, Naveed Ahmed Khan
Neuropathogenic Escherichia Coli K1 Does Not Exhibit Proteolytic Activities To Exert Its Pathogenicity, Junaid Iqbal, Mehak Rajan, Ruqaiyyah Siddiqu, Naveed Ahmed Khan
Department of Biological & Biomedical Sciences
Background: Proteases are well-known virulence factors that promote survival, pathogenesis and immune evasion of many pathogens. Several lines of evidence suggest that the blood-brain barrier permeability is a prerequisite in microbial invasion of the central nervous system. Because proteases are frequently associated with vascular permeability by targeting junctional proteins, here it is hypothesized that neuropathogenic Escherichia coli K1 exhibit proteolytic activities to exert its pathogenicity.
Methods: Zymographic assays were performed using collagen and gelatin as substrates. The lysates of whole E. coli K1 strain E44, or E. coli K-12 strain HB101 were tested for proteolytic activities. The conditioned media were …
Antimicrobial Resistance Patterns In Extended-Spectrum Β-Lactamase Producing Escherichia Coli And Klebsiella Pneumoniae Isolates In A Private Tertiary Hospital, Kenya, Daniel Maina, Paul Makau, Andrew Nyerere, Gunturu Revathi
Antimicrobial Resistance Patterns In Extended-Spectrum Β-Lactamase Producing Escherichia Coli And Klebsiella Pneumoniae Isolates In A Private Tertiary Hospital, Kenya, Daniel Maina, Paul Makau, Andrew Nyerere, Gunturu Revathi
Pathology, East Africa
Background: Extended-Spectrum β-Lactamase (ESBL) producing Enterobacteriaceae have become widespread in hospitals and are increasing in community settings where they cause a variety of infections. In addition to hydrolyzing most beta-lactam agents, bacteria harboring these enzymes display resistance to other unrelated antimicrobial agents and thus often pose a therapeutic dilemma. Though these resistance patterns have been studied elsewhere within Africa, such data from hospitals in Kenya are scanty. We therefore undertook to determine these patterns at the Aga Khan University hospital by studying multidrug resistant Escherichia coli and Klebsiella pneumoniae isolates from patients' samples.
Findings: A total of 159 isolates (109 …
Frequency Of Precancerous Lesions In Endoscopic Gastric Biopsies In Chronic Gastritis, Saroona Haroon, Naveen Faridi, Faisal Rashid Lodhi, Shafaq Mujtaba
Frequency Of Precancerous Lesions In Endoscopic Gastric Biopsies In Chronic Gastritis, Saroona Haroon, Naveen Faridi, Faisal Rashid Lodhi, Shafaq Mujtaba
Department of Pathology and Laboratory Medicine
Objective:
To determine the frequency of precancerous lesions in endoscopic gastric biopsies of patients with chronic gastritis.STUDY Design: A case series.
Place and duration of study:
Department of Histopathology, Liaquat National Hospital, Karachi, from July 2008 to January 2009.METHODOLOGY: Over 6 months, 375 endoscopic gastric biopsies of patients with age group of 15-65 years having endoscopic chronic gastritis were included. From final biopsy report, basic information like patient demographics and presence of precancerous lesions i.e. activity (chronic active gastritis), atrophy (atrophic gastritis), intestinal metaplasia and dysplasia were recorded on proforma. Results were described as proportions and frequency.
Results:
The frequency …
Prevalence Of Genital Chlamydia Infection In Urban Women Of Reproductive Age, Nairobi, Kenya, Ruchika Kohli, Walter P. Konya, Timona Obura, William Stones, Gunturu Revathi
Prevalence Of Genital Chlamydia Infection In Urban Women Of Reproductive Age, Nairobi, Kenya, Ruchika Kohli, Walter P. Konya, Timona Obura, William Stones, Gunturu Revathi
Pathology, East Africa
Background: Chlamydia trachomatis is one of the major causes of sexually transmitted infections throughout the world. Most infections are asymptomatic and remain undetected. Burden of disease in the Kenyan population is not well characterised. This study was done to define the prevalence of genital Chlamydia infection in a representative female population.
Findings: A cross-sectional study design was employed. All women attending out-patient clinics (antenatal, gynaecology, family planning) and accident and emergency departments at two study sites over a five month period were invited to consent to completion of a questionnaire and vaginal swab collection. A rapid point-of-care immunoassay based test …
Bronchial Carcinoid Presenting As Multiple Lung Abscesses, Zeeshan Waheed, Muhammad Irfan, Saulat Fatimi, Ruqaiya Shahid
Bronchial Carcinoid Presenting As Multiple Lung Abscesses, Zeeshan Waheed, Muhammad Irfan, Saulat Fatimi, Ruqaiya Shahid
Section of Pulmonary & Critical Care
Bronchial carcinoid tumours is a rare group of pulmonary malignant neoplasm that is derived from neuroendocrine system. Bronchial carcinoid usually present with hilar masses, atelactasis, bronchiectasis, or post-obstructive pneumonia. This case describes a very unusual presentation of bronchial carcinoid tumour with multiple lung abscesses involving the whole lung. This report is of an adult lady who presented with multiple lung abscesses involving her whole of the right lung. She was found to have an endo-bronchial lesion in her right main bronchus which eventually turned out to be carcinoid tumour. She responded to resection and antibiotic therapy.
Expression Of Mismatch Repair Proteins In Colorectal Cancer At Aga Khan University Hospital, Nairobi, Charles M. Wahome
Expression Of Mismatch Repair Proteins In Colorectal Cancer At Aga Khan University Hospital, Nairobi, Charles M. Wahome
Master of Medicine in Anatomic Pathology
Introduction: Microsatellite instability is one of three molecular pathways described in the pathogenesis of colorectal carcinoma. The presence of microsatellite instability in patients with colorectal cancer has implications for prognosis and family counselling. Deficiency in mismatch repair genes leads to microsatellite instability and this can be reliably demonstrated in formalin fixed paraffin embedded tissue by methods, which include immunohistochemistry for the detection of mismatch repair proteins. Local data show a disproportionately large number of younger patients with colorectal cancer compared to that documented in Caucasians. Colorectal cancer in younger ages is often attributed to deficient mismatch repair. The objective of …
Effectiveness Of Sequential V. Standard Triple Therapy For Treatment Of Helicobacter Pylori Infection In Children In Nairobi, Kenya, Ahmed Laving, Rose Kamenwa, Shahin Sayed, Andrew Nyerere Kimang'a, Gunturu Revathi
Effectiveness Of Sequential V. Standard Triple Therapy For Treatment Of Helicobacter Pylori Infection In Children In Nairobi, Kenya, Ahmed Laving, Rose Kamenwa, Shahin Sayed, Andrew Nyerere Kimang'a, Gunturu Revathi
Paediatrics and Child Health, East Africa
Background: Once the diagnosis of Helicobacter pylori is confirmed, treatment requires at least two antibiotics and an acid inhibitor for a minimum of seven days. Unfortunately, treatment failures are being frequently reported. Treatment regimens that include sequential administration of antibiotics with acid inhibitors have been developed to try and increase the rate of eradication.
Objective: To determine the effectiveness of a novel 10-day sequential therapy compared with the standard 10-day triple therapy for treatment of H. pylori infection in children.
Methods: A double-blinded, randomised, controlled trial was conducted. Children under the age of 16 years with recurrent abdominal pain associated …
Usefulness Of Plasmodium Falciparum-Specific Rapid Diagnostic Tests For Assessment Of Parasite Clearance And Detection Of Recurrent Infections After Artemisinin-Based Combination Therapy, B. Aydin-Schmidt, M. Mubi, U. Morris, M. Petzold, B.E. Ngasala, Zul Premji, A. Bjorkman, A. Martensson
Usefulness Of Plasmodium Falciparum-Specific Rapid Diagnostic Tests For Assessment Of Parasite Clearance And Detection Of Recurrent Infections After Artemisinin-Based Combination Therapy, B. Aydin-Schmidt, M. Mubi, U. Morris, M. Petzold, B.E. Ngasala, Zul Premji, A. Bjorkman, A. Martensson
Pathology, East Africa
Background: Rapid diagnostic test (RDT) is an important tool for parasite-based malaria diagnosis. High specificity of RDTs to distinguish an active Plasmodium falciparum infection from residual antigens from a previous infection is crucial in endemic areas where residents are repeatedly exposed to malaria. The efficiency of two RDTs based on histidine-rich protein 2 (HRP2) and lactate dehydrogenase (LDH) antigens were studied and compared with two microscopy techniques (Giemsa and acridine orange-stained blood smears) and real-time polymerase chain reaction (PCR) for assessment of initial clearance and detection of recurrent P. falciparum infections after artemisinin-based combination therapy (ACT) in a moderately high …
Foot Dimensions As A Tool For Gender Determination In Kenyan Adults, Maureen W. Waithaka
Foot Dimensions As A Tool For Gender Determination In Kenyan Adults, Maureen W. Waithaka
Master of Medicine in Anatomic Pathology
Introduction: Anthropometry has gained popularity over the years as a reliable method to determine gender. In forensic investigation, there are cases where gender cannot be readily determined using anatomy such as in mass casualty disasters with dismemberment and commingling of limbs. Kenyan descriptive data of foot dimensions is lacking as are formulae for estimating gender. Proven differences in foot dimensions across races prevent application of formula obtained using different populations necessitating generation of local data and formulae. Objectives: To describe the foot lengths, breaths and navicular heights of a representative adult Kenyan population, both male and female, and derive from …
Early Onset Type 2 Diabetes And Associated Risk Factors, Grace Nyambura Kiraka
Early Onset Type 2 Diabetes And Associated Risk Factors, Grace Nyambura Kiraka
Master of Medicine in Clinical Pathology
Background: The incidence of type 2 diabetes in patients below the age of 40 (early onset diabetes) is markedly on the rise and has been linked increased prevalence of risk factors such as the metabolic syndrome and family history of diabetes. Objective: To determine the proportion of patients with type 2 diabetes at Aga Khan University Hospital Nairobi (AKUHN) who have early onset type 2 diabetes and the association of age of onset with risk factors (family history of diabetes, obesity, waist circumference, hypertension, low HDL cholesterol and hypertriglyceridaemia) in this group of patients. Methods: This was a cross sectional …
Primary Antiretroviral Drug Resistance Profiles Among Hiv-1 Therapy Naïve Patients In Two Referral Hospitals In Kenya, Simon Onsongo Nyangena
Primary Antiretroviral Drug Resistance Profiles Among Hiv-1 Therapy Naïve Patients In Two Referral Hospitals In Kenya, Simon Onsongo Nyangena
Master of Medicine in Clinical Pathology
Objective: To characterize antiretroviral drug resistance mutations among drug naïve patients in two referral hospitals in Kenya Background: Acquired immunodeficiency syndrome (AIDS) caused by Human immunodeficiency virus (HIV) was first described in 1982. Since then the virus has spread globally to infect millions of people. HIV was first described in Kenya in the period between 1984/1985. Currently, Kenya has an estimated HIV-1 prevalence of 6.2% with a country population of about 40 million people. With the introduction of antiretroviral drugs, the survival of most HIV patients has been prolonged markedly. However this is greatly threatened by increasing rates of antiretroviral …
Clinicopathological Spectrum Of Ovarian Sex Cord-Stromal Tumors; 20years' Retrospective Study In A Developing Country, Saroona Haroon, Aleena Zia, Romana Idrees, Aisha Memon, Saira Fatima, Naila Kayani
Clinicopathological Spectrum Of Ovarian Sex Cord-Stromal Tumors; 20years' Retrospective Study In A Developing Country, Saroona Haroon, Aleena Zia, Romana Idrees, Aisha Memon, Saira Fatima, Naila Kayani
Department of Pathology and Laboratory Medicine
Background:
Ovarian sex cord stromal tumors are rare neoplasms as compared to epithelial tumors. No large study has been done in Pakistan to find out the frequencies of various sex cord stromal tumors and their clinicopathological behavior in our region. The purpose of our study was to determine the various histological patterns and clinical features of ovarian sex cord stromal tumors along with follow-up in our set-up.
Methods:
It is a retrospective observational study. The study was conducted in section of Histopathology, Aga Khan University Hospital, Karachi, Pakistan. All reported cases of sex cord stromal tumors of ovary during 1992 …
Frequency And Outcome Of Graft Versus Host Disease After Stem Cell Transplantation: A Six-Year Experience From A Tertiary Care Center In Pakistan, Natasha Ali, Salman Naseem Adil, Mohammad Usman Shaikh, Nehal Masood
Frequency And Outcome Of Graft Versus Host Disease After Stem Cell Transplantation: A Six-Year Experience From A Tertiary Care Center In Pakistan, Natasha Ali, Salman Naseem Adil, Mohammad Usman Shaikh, Nehal Masood
Department of Pathology and Laboratory Medicine
Objective: The objective of this study was to evaluate the frequency and outcome of graft versus host disease after stem cell transplantation for various haematological disorders in Pakistan.
Materials and Methods: Pretransplant workup of the patient and donor was performed. Mobilization was done with G-CSF 300 mu g twice daily for five day. Standard GvHD prophylaxis was done with methotrexate 15mg/m(2) on day +1 followed by 10mg/m(2) on days +3 and +6 and cyclosporine. Grading was done according to the Glucksberg classification.
Results: A total of 153 transplants were done from April 2004 to December 2011. Out of these were …
Genetic Diversity Of Plasmodium Vivax Clinical Isolates From Southern Pakistan Using Pvcsp And Pvmsp1 Genetic Markers, Afsheen Raza, Najia K. Ghanchi, Ali M. Thaver, Sana Jafri, Mohammad A. Beg
Genetic Diversity Of Plasmodium Vivax Clinical Isolates From Southern Pakistan Using Pvcsp And Pvmsp1 Genetic Markers, Afsheen Raza, Najia K. Ghanchi, Ali M. Thaver, Sana Jafri, Mohammad A. Beg
Department of Pathology and Laboratory Medicine
Background:
Plasmodium vivax is the prevalent malarial species accounting for 70% of malaria burden in Pakistan; however, there is no baseline data on the circulating genotypes. Studies have shown that polymorphic loci of gene encoding antigens pvcsp and pvmsp1 can be used reliably for conducting molecular epidemiological studies. Therefore, this study aimed to bridge the existing knowledge gap on population structure on P. vivax from Pakistan using these two polymorphic genes.
Methods:
During the period January 2008 to May 2009, a total of 250 blood samples were collected from patients tested slide positive for P. vivax, at the Aga Khan …
Identification Of Non-Tuberculous Mycobacteria Isolated From Clinical Specimens At A Tertiary Care Hospital: A Cross-Sectional Study, Imran Ahmed, Kauser Jabeen, Rumina Hasan
Identification Of Non-Tuberculous Mycobacteria Isolated From Clinical Specimens At A Tertiary Care Hospital: A Cross-Sectional Study, Imran Ahmed, Kauser Jabeen, Rumina Hasan
Department of Pathology and Laboratory Medicine
Background:
Non-tuberculous mycobacteria (NTM) are opportunistic pathogens in immuno-compromised patients. They are also increasingly recognized as pathogens in immuno-competent individuals. Globally, an increase in NTM isolation is being reported with a varied geographic prevalence of different species around the world. There is lack of data on species distribution of these organisms from Pakistan. Treatment options differ according to the species isolated and its susceptibility profile. Knowledge of local species variation would help targeted therapy. This study was performed to determine frequencies of different NTM species isolated from various clinical specimens submitted at a tertiary care hospital laboratory.
Methods:
NTM isolated …
Overview Of Benign And Malignant Prostatic Disease In Pakistani Patients: A Clinical And Histopathological Perspective, Huma Arshad, Zubair Ahmad
Overview Of Benign And Malignant Prostatic Disease In Pakistani Patients: A Clinical And Histopathological Perspective, Huma Arshad, Zubair Ahmad
Department of Pathology and Laboratory Medicine
Background: To present the overall clinical and histological perspective of benign and malignant prostatic disease as seen in our practice in the Section of Histopathology, Department of Pathology and Microbiology, Aga Khan University Hospital, Karachi, Pakistan.
Materials and Methods: All consecutive prostate specimens (transurethral resection or TUR, enucleation, needle biopsies) received between July 1, 2012 and December 31, 2012 were included in the study.
Results: Of the total of 785 cases, 621 (79.1%) were TUR specimens, 80 (10.2%) enucleation specimens, and 84 (10.7%) needle biopsies. Some 595 (75.8%) were benign, while 190 (24.2%) were malignant. Mean weight of BPH specimens …
Peripheral T-Cell Lymphoma Presenting As Testicular Mass; A Diagnostic Challenge, Saroona Haroon, Arsalan Ahmed
Peripheral T-Cell Lymphoma Presenting As Testicular Mass; A Diagnostic Challenge, Saroona Haroon, Arsalan Ahmed
Department of Pathology and Laboratory Medicine
Background: T-cell lymphomas involve the testis infrequently, which deserve special attention because of the poor prognosis and the need to make an appropriate diagnosis, which could lead to a better therapeutic strategy.
Case Presentation: A 40-year-old man presented with right testicular swelling for past three months. The swelling was painless, hard and rubbery. Testicular ultrasound showed diffuse increase in size of the testicle, with alteration in its echogenicity. The patient underwent orchidectomy, and based on histopathological and immunohistochemical tests, a peripheral T-cell lymphoma, not otherwise specified was diagnosed.
Conclusion: Testicular peripheral T-cell lymphomas are rare and aggressive cancers, with clinical …