219 research outputs found
PHARMACOGNOSTIC STUDIES OF DALBERGIA SISSO ROXB.
Objective: Present study was aimed to standardize the leaves, pods, and bark of Dalbergia sisso Roxb (Fabaceae) plant which is one of the most important species of Pakistan and used in different ailments.Methods: Powders of dried parts of this plant were used for macroscopic and microscopic, histological, fluorescence, micro chemical, proximate, infra-red spectroscopic examinations and extract were used for preliminary phytochemical examination. These entire tests were performed as per World Health Organization (WHO) standards.Results: In preliminary phytochemical analysis D. sisso carbohydrates, alkaloids, and tannins were detected in the pod while leaves contain carbohydrates alkaloids and flavonoids. The different cellular structure provides the basis of different parts identifications like stomata in leave (A), schlerides in pods (B) and tissues in bark (C) parts of the powdered plant. Proximate analysis showed the high level of moisture content and ash values of A, B and C samples. The fluorescence behavior of powdered material of A, B and C revealed the coloration of these samples under different wavelength. Fourier transform infrared spectroscopy (FTIR) established the spectrum include aromatic and aldehyde based functional groups for the all three powdered samples of D. sisso Roxb.Conclusion: This research work was performed for the standardization of the plant D. sisso Roxb. as per WHO recommendations and we established the proper identification profile of the plant and its parts
Attitudes of Islamic Learning and Education Faculty Students Towards English Language at Karachi University
The research paper aims at studying the attitudes of the students of Islamic Learning and Education Faculty towards English at the University of Karachi. It is based on testing the hypothesis that the students of Islamic Learning Faculty have less positive attitudes towards English as compared to the students of Education faculty through a survey on first year students of both faculties. A five-point Likert scale was used to conduct a survey on 151 students of the Islamic Learning faculty and 135 students of the Education faculty. The results were calculated using an independent t-testand standard deviation which reveals that there is a minor difference in the attitudes of thestudent of both faculties. The students of the Education faculty showed more positive attitudes when asked about the importance of English as compared to the attitudes of the students of Islamic Learning Faculty. However, the difference in their attitude is negligible. As the results reveal a minor association between the attitudes of the learners and their faculty, the study; therefore, proves the null hypothesiswhich says that there is no significant difference between the attitudes of the students of both the faculties.
Keywords: attitudes; English language; t-test; standard deviation; Islamic learning faculty; education faculty; likert-scale
Hepatitis B and hepatitis C in Pakistan: prevalence and risk factors
SummaryBackgroundPakistan carries one of the world’s highest burdens of chronic hepatitis and mortality due to liver failure and hepatocellular carcinomas. However, national level estimates of the prevalence of and risk factors for hepatitis B and hepatitis C are currently not available.MethodsWe reviewed the medical and public health literature over a 13-year period (January 1994–September 2007) to estimate the prevalence of active hepatitis B and chronic hepatitis C in Pakistan, analyzing data separately for the general and high-risk populations and for each of the four provinces. We included 84 publications with 139 studies (42 studies had two or more sub-studies).ResultsMethodological differences in studies made it inappropriate to conduct a formal meta-analysis to determine accurate national prevalence estimates, but we estimated the likely range of prevalence in different population sub-groups. A weighted average of hepatitis B antigen prevalence in pediatric populations was 2.4% (range 1.7–5.5%) and for hepatitis C antibody was 2.1% (range 0.4–5.4%). A weighted average of hepatitis B antigen prevalence among healthy adults (blood donors and non-donors) was 2.4% (range 1.4–11.0%) and for hepatitis C antibody was 3.0% (range 0.3–31.9%). Rates in the high-risk subgroups were far higher.ConclusionsData suggest a moderate to high prevalence of hepatitis B and hepatitis C in different areas of Pakistan. The published literature on the modes of transmission of hepatitis B and hepatitis C in Pakistan implicate contaminated needle use in medical care and drug abuse and unsafe blood and blood product transfusion as the major causal factors
Symptomatic surgically treated non-neoplastic cysts of the central nervous system: a clinicopathological study from Pakistan
Objective: To report clinicopathologic features of symptomatic surgically removed non-neoplastic cysts of the central nervous system (CNS). Study Design: Case series. Place and Duration of Study: The Aga Khan University Hospital, Karachi, from 2003 to 2012. Methodology: All non-neoplastic CNS cysts reported during the study period were retrieved and reviewed. Age, gender, location, histologic type and clinical features were noted. Results: A total of 124 cysts were diagnosed in the study period. These included 44 epidermoid cysts (mean age 30.5 ± 13.8 years), 35 colloid cysts (mean age 31 ± 13.2 years), 32 arachnoid cysts (mean age 24.8 ± 20.2 years), 6 dermoid cysts, 3 enterogenous cysts and Rathke\u27s cleft cysts each and 1 ependymal cyst. All cyst types mainly presented in young adults in both genders with signs and symptoms of a mass lesion. Conclusion: Non-neoplastic cyst mainly presented like a CNS mass lesion in young adults. Epidermoids were the most common type of these cysts in the present series followed by the colloid and the arachnoid cysts
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A 19-year-old at 37 weeks gestation with an acute acetylsalicylic acid overdose
Acute salicylate overdose in pregnancy is potentially fatal for both the mother and fetus and presents a unique challenge in intensive care management. While suggested thresholds exist for hemodialysis in adults with toxic salicylate ingestion, it is unclear if these thresholds remain appropriate for the gravid patient, particularly given that medications such as acetylsalicylic acid may cross the placental barrier and accumulate in the fetal bloodstream. We describe a case of a gravid patient at ∼37 weeks gestational age with a self-reported acetylsalicylic acid ingestion of 32.5 g and review prior cases of both acute and chronic salicylate ingestion in pregnancy in order to determine the clinical precedent for hemodialysis in this situation
WHO Parents Skills Training (PST) programme for children with developmental disorders and delays delivered by Family Volunteers in rural Pakistan: study protocol for effectiveness implementation hybrid cluster randomized controlled trial
Development disorders and delays are recognised as a public health priority and included in the WHO mental health gap action programme (mhGAP). Parents Skills Training (PST) is recommended as a key intervention for such conditions under the WHO mhGAP intervention guide. However, sustainable and scalable delivery of such evidence based interventions remains a challenge. This study aims to evaluate the effectiveness and scaled-up implementation of locally adapted WHO PST programme delivered by family volunteers in rural Pakistan. The study is a two arm single-blind effectiveness implementation-hybrid cluster randomised controlled trial. WHO PST programme will be delivered by 'family volunteers' to the caregivers of children with developmental disorders and delays in community-based settings. The intervention consists of the WHO PST along with the WHO mhGAP intervention for developmental disorders adapted for delivery using the android application on a tablet device. A total of 540 parent-child dyads will be recruited from 30 clusters. The primary outcome is child's functioning, measured by WHO Disability Assessment Schedule - child version (WHODAS-Child) at 6 months post intervention. Secondary outcomes include children's social communication and joint engagement with their caregiver, social emotional well-being, parental health related quality of life, family empowerment and stigmatizing experiences. Mixed method will be used to collect data on implementation outcomes. Trial has been retrospectively registered at ClinicalTrials.gov (NCT02792894). This study addresses implementation challenges in the real world by incorporating evidence-based intervention strategies with social, technological and business innovations. If proven effective, the study will contribute to scaled-up implementation of evidence-based packages for public mental health in low resource settings. Registered with ClinicalTrials.gov as Family Networks (FaNs) for Children with Developmental Disorders and Delays. Identifier: NCT02792894 Registered on 6 July 2016
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The experience of maternal mental distress in The Gambia: A qualitative study identifying idioms of distress, perceptions of contributing factors and the supporting role of existing cultural practices
Maternal mental health problems are experienced frequently in the perinatal period and can be up to twice as common in women from low- and middle-income countries. The terms used to describe mental illness symptoms and the factors that contribute to developing these symptoms are affected by culture and context. Based on 14 focus group discussions held with pregnant women, health professionals and cultural leaders, this qualitative study aimed to understand women’s experiences of mental distress during the perinatal period in The Gambia. To do this it aimed to 1) identify the most commonly used idioms of distress, 2) identify the factors believed to affect women’s perinatal mental health and 3) explore the role of existing cultural practices, including musical practices, that were identified as locally significant in supporting maternal and mental health. Sondomoo tenkung baliyaa (Mandinka) and xel bu dalut (Wolof) were identified as the most commonly used idioms of distress which roughly translate to lack of a steady mind/heart. Using thematic analysis, six themes (Poverty of the healthcare system, Shifting cultural context, Economic factors, Social factors, Spiritual factors, and Cultural practices involving music) were identified to describe the factors that shape women’s experience of mental health during the perinatal period. Lack of economic resources, the prevailing poverty of the health system, an unsupportive husband and spiritual attack by evil spirits or witches were common reasons given for a woman experiencing maternal mental distress. Various existing cultural practices involving music, such as fertility societies, naming ceremonies and community music-making, were recognised as valuable for supporting women’s mental health during the perinatal period. This work emphasises that initiatives to support perinatal mental health should be grounded in an understanding of local community cultural practices, knowledge, and experiences
Monoclonal antibodies for copper-64 PET dosimetry and radioimmunotherapy
BACKGROUND: We previously described a two-antibody model of (64)Cu radioimmunotherapy to evaluate low-dose, solid-tumor response. This model was designed to test the hypothesis that cellular internalization is critical in causing tumor cell death by mechanisms in addition to radiation damage. The purpose of the present study was to estimate radiation dosimetry for both antibodies (mAbs) using positron emission tomography (PET) imaging and evaluate the effect of internalization on tumor growth. RESULTS: Dosimetry was similar between therapy groups. Median time to tumor progression to 1 g ranged from 7–12 days for control groups and was 32 days for both treatment groups (p < 0.0001). No statistically significant difference existed between any control group or between the treatment groups. MATERIAL AND METHODS: In female nude mice bearing LS174T colon carcinoma xenografts, tumor dosimetry was calculated using serial PET images of three mice in each group of either internalizing (64)Cu-labeled DOTA-cBR96 (DOTA = 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) or non-internalizing (64)Cu-labeled DOTA-cT84.66 from 3 to 48 h. For the therapy study, controls (n = 10) received saline, DOTA-cBR96 or DOTA-cT84.66. Treatment animals (n = 9) received 0.890 mCi of (64)Cu-labeled DOTA-cBR96 or 0.710 mCi of (64)Cu-labeled DOTA-cT84.66. Tumors were measured daily. CONCLUSIONS: PET imaging allows the use of (64)Cu for pre-therapy calculation of tumor dosimetry. In spite of highly similar tumor dosimetry, an internalizing antibody did not improve the outcome of (64)Cu radioimmunotherapy. Radio-resistance of this tumor cell line and copper efflux may have confounded the study. Further investigations of the therapeutic efficacy of (64)Cu-labeled mAbs will focus on interaction between (64)Cu and tumor suppressor genes and copper chaperones
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