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Ullah I, Wisetsri W, Wu H, Shah SMA, Abbas A, Manzoor S. Leadership Styles and Organizational Citizenship Behavior for the Environment: The Mediating Role of Self-Efficacy and Psychological Ownership. Front Psychol 2021; 12:683101. [PMID: 34276505 PMCID: PMC8283275 DOI: 10.3389/fpsyg.2021.683101] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/31/2021] [Indexed: 11/17/2022] Open
Abstract
Change and environmental patterns are having an immense effect upon the world. Businesses, communities, and even individuals are struggling to perform their role within environmental protection. This paper investigates the role of leadership styles on organizational citizenship behavior for the environment (OCBE) directly and through the mediation of self-efficacy and psychological ownership. The survey technique was used to collect the data from Chinese banking, insurance, medicine, and teaching service sector employees for the current study. The reliability and validity of the scale items were tested. This study used AMOS-SEM for data analysis and testing the developed hypotheses. The empirical results confirmed that responsible, inclusive, authentic, and supportive leadership styles positively impact employees' OCBE. The results further confirm that self-efficacy and psychological ownership act as mediators between leadership and OCBE. The current study widens our understanding of leadership styles and their impact on OCBE, along with limitations associated with the study and future guidelines for investigators.
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Yousaf A, Khan FMA, Hasan MM, Ullah I, Bardhan M. Dengue, measles, and COVID-19: A threefold challenge to public health security in Pakistan. ACTA ACUST UNITED AC 2021; 19:100704. [PMID: 34230890 PMCID: PMC8249682 DOI: 10.1016/j.jemep.2021.100704] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 06/28/2021] [Indexed: 12/12/2022]
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278
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Khan AW, Khan AA, Ishaq M, Ullah I, Mamun MA. Factitious disorder, presenting haemolacria in a Pakistani tribal illiterate female: A rare case report. Perspect Psychiatr Care 2021; 57:1532-1535. [PMID: 33241853 DOI: 10.1111/ppc.12689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/13/2020] [Accepted: 10/31/2020] [Indexed: 12/01/2022] Open
Abstract
INTRODUCTION It could be challenging for healthcare workers to diagnose patients with factitious disorder who present with rare ophthalmologic manifestations such as haemolacria, because of the unavailability of adequate literature and associated guidelines. The present case report aims to fulfill this knowledge gap. CASE PRESENTATION A 20-year-old tribal illiterate married female patient with symptoms of bleeding episodes from her left eye was admitted to the hospital. An extensive workup was done for diagnosing possible bleeding disorders but all the parameters were normal. Later on, she was diagnosed with factitious disorder presenting haemolacria after sufficient evidence at the psychiatric unit observations. The patient was treated accordingly, counseled and discharged, but lost-out to follow-ups. PRACTICAL IMPLICATIONS The present case is reported from a developing country, Pakistan, for the first-time may help in diagnosing patients suffering from factitious disorder with unusual ophthalmologic problems.
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279
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Shoib S, Das S, Ullah I, De Berardis D. Publish or perish: Panic publishing a danger to science during COVID-19. Aust N Z J Psychiatry 2021; 55:733. [PMID: 33938267 DOI: 10.1177/00048674211009624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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280
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Hussain Zaidi SA, Raza SS, Ahmad D, Medhat N, Haq IU, Ayaz T, Ullah I, Khan MB. An Early Presentation Of Supraglottic Laryngeal Paraganglioma: Case Report And Review Of Literature. J Ayub Med Coll Abbottabad 2021; 33:532-534. [PMID: 34487673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A thirty-year-old male presented with progressive hoarseness and dysphagia for solids. Fibre optic laryngoscopy showed a right supraglottic mass. Subsequent CT imaging showed the location and extent of the mass. Biopsy revealed a Paraganglioma with cytokeratin negative and chromogranin positive cells. The mass was subsequently removed without complications. Follow up also showed no complications. Hoarseness and dysphagia resolved following tumour excision.
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Aamir A, Awan HA, Diwan MN, Kazmi SK, Hasan MM, Douba Z, Ullah I. The dilemma of treating the infected versus the wounded: Gaza's healthcare system is choked. Int J Health Plann Manage 2021; 36:2430-2435. [PMID: 34212406 DOI: 10.1002/hpm.3274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Gaza has been facing persistent disturbance since the last 14 years. Even before the pandemic, Gaza faced a dire healthcare consequence with prevalent instability, lack of adequate medical resources, and limited health-related infrastructure. Gaza continued to struggle while responding to the pandemic as the other nearby countries. However, the challenges were compounded with the onset of the conflict that affected Gaza's infrastructure and displaced tens of thousands to make-shift shelters. The testing capacity of Gaza is alarmingly low that makes any outbreak difficult to document. Additionally, all medical centres have been affected by the ongoing conflict. These centres, if not directly impacted, are severely overwhelmed with those injured during the conflict, shifting focus and resources away from coronavirus. Vaccinations in Gaza cover only 1.9% of the population and a great number of unvaccinated people now may act as vectors of transmission in overcrowded shelters. Furthermore, non-availability of clean water to maintain hygienic conditions has heightened the risk of an explosive surge in cases. Hence, beyond the ceasefire, further steps need to be taken to strengthen Gazan response to COVID-19 pandemic.
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Ullah I, Jatchavala C, Waheed S, Shoib S, Őri D. Suicide in low- and middle-income countries: Perspectives form overview of studies in South Asia. Asian J Psychiatr 2021; 61:102715. [PMID: 34052669 DOI: 10.1016/j.ajp.2021.102715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/08/2021] [Accepted: 05/21/2021] [Indexed: 10/21/2022]
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283
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Lin C, Hou W, Mamun MA, Aparecido da Silva J, Broche‐Pérez Y, Ullah I, Masuyama A, Wakashima K, Mailliez M, Carre A, Chen Y, Chang K, Kuo Y, Soraci P, Scarf D, Broström A, Griffiths MD, Pakpour AH. Fear of COVID-19 Scale (FCV-19S) across countries: Measurement invariance issues. Nurs Open 2021; 8:1892-1908. [PMID: 33745219 PMCID: PMC8186712 DOI: 10.1002/nop2.855] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/11/2021] [Accepted: 02/17/2021] [Indexed: 01/18/2023] Open
Abstract
AIM The threats of novel coronavirus disease 2019 (COVID-19) have caused fears worldwide. The Fear of COVID-19 Scale (FCV-19S) was recently developed to assess the fear of COVID-19. Although many studies found that the FCV-19S is psychometrically sound, it is unclear whether the FCV-19S is invariant across countries. The present study aimed to examine the measurement invariance of the FCV-19S across eleven countries. DESIGN Cross-sectional study. METHODS Using data collected from prior research on Bangladesh (N = 8,550), United Kingdom (N = 344), Brazil (N = 1,843), Taiwan (N = 539), Italy (N = 249), New Zealand (N = 317), Iran (N = 717), Cuba (N = 772), Pakistan (N = 937), Japan (N = 1,079) and France (N = 316), comprising a total 15,663 participants, the present study used the multigroup confirmatory factor analysis (CFA) and Rasch differential item functioning (DIF) to examine the measurement invariance of the FCV-19S across country, gender and age (children aged below 18 years, young to middle-aged adults aged between 18 and 60 years, and older people aged above 60 years). RESULTS The unidimensional structure of the FCV-19S was confirmed. Multigroup CFA showed that FCV-19S was partially invariant across country and fully invariant across gender and age. DIF findings were consistent with the findings from multigroup CFA. Many DIF items were displayed for country, few DIF items were displayed for age, and no DIF items were displayed for gender. CONCLUSION Based on the results of the present study, the FCV-19S is a good psychometric instrument to assess fear of COVID-19 during the pandemic period. Moreover, the use of FCV-19S is supported in at least ten countries with satisfactory psychometric properties.
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Ullah I, Prévost J, Ladinsky MS, Stone H, Lu M, Anand SP, Beaudoin-Bussières G, Symmes K, Benlarbi M, Ding S, Gasser R, Fink C, Chen Y, Tauzin A, Goyette G, Bourassa C, Medjahed H, Mack M, Chung K, Wilen CB, Dekaban GA, Dikeakos JD, Bruce EA, Kaufmann DE, Stamatatos L, McGuire AT, Richard J, Pazgier M, Bjorkman PJ, Mothes W, Finzi A, Kumar P, Uchil PD. Live Imaging of SARS-CoV-2 Infection in Mice Reveals Neutralizing Antibodies Require Fc Function for Optimal Efficacy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021. [PMID: 33791699 DOI: 10.1101/2021.03.22.436337] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Neutralizing antibodies (NAbs) are effective in treating COVID-19 but the mechanism of immune protection is not fully understood. Here, we applied live bioluminescence imaging (BLI) to monitor the real-time effects of NAb treatment in prophylaxis and therapy of K18-hACE2 mice intranasally infected with SARS-CoV-2-nanoluciferase. We could visualize virus spread sequentially from the nasal cavity to the lungs and thereafter systemically to various organs including the brain, which culminated in death. Highly potent NAbs from a COVID-19 convalescent subject prevented, and also effectively resolved, established infection when administered within three days. In addition to direct Fab-mediated neutralization, Fc effector interactions of NAbs with monocytes, neutrophils and natural killer cells were required to effectively dampen inflammatory responses and limit immunopathology. Our study highlights that both Fab and Fc effector functions of NAbs are essential for optimal in vivo efficacy against SARS-CoV-2.
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Wong K, Ullah I, Taseer AR, Irfan M, Almas T, Musa SS. Dual tension: Lassa fever and COVID-19 in Nigeria. ACTA ACUST UNITED AC 2021; 18:100697. [PMID: 34179327 PMCID: PMC8219472 DOI: 10.1016/j.jemep.2021.100697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 06/14/2021] [Indexed: 11/21/2022]
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Ullah I, Afridi SG, Khan AU, Israr M, Ali A, Shams S, Jabeen H, Rasool A, Akbar F, Rahat MA, Haris M, Khan A, Siraj M, Shah M. PCR-RFLP Based genetic diversity of Plasmodium vivax genotypes in district Mardan, Pakistan. BRAZ J BIOL 2021; 82:e241110. [PMID: 34133560 DOI: 10.1590/1519-6984.241110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/09/2020] [Indexed: 11/22/2022] Open
Abstract
Plasmodium vivax is the most common human malaria parasite in Asian countries including Pakistan. Present study was designed to explore the genetic diversity of plasmodium vivax genotypes based on Pvmsp-3α and Pvmsp-3βgenes using allelic specific nested PCR and RFLP assays markers from field isolates in district Mardan, Pakistan. Blood samples of 200 P. vivax malarial patients were collected after taking their written informed consent. Genetic diversity in nested PCR products was determined by Restriction Fragment Length Polymorphism (RFLP) utilizing Alu1 and PstI restriction enzymes for alpha and beta gene products digestion, respectively. For analysis the genetic diversity of the sub allelic variants of Pvmsp3α and Pvmsp3β genes, Chi-Square test was performed by utilizing Minitab programming software 18. The P value 0.05 was considered as statistically significant. For Pvmsp-3α genes after gel electrophoresis of digested products, four distinct genotypes were obtained from total of 50 samples; type A: 35 (70%) (1.5-2.0 kb), 12 of type B (24%) (1.5-1.7 kb), 2 of type C (4%) (0.5-1.5) and one for type D (2%) (0.5-0.65 kb) which could be characterized into 9 allelic pattern (A1-A4, B1-B3, C1, D), in which A3 remained the most predominant. For Pvmsp-3βgenes, three distinct genotypes were obtained from 50 samples; 40(80%) of type A (1.5-2.5 kb), 9 (18%) of type B (1.0-1.5kb) and 1(2%) of type C (0.65 kb) which could be characterized into 6 allelic patterns (A1-A3, B1-B2, and C1). Most dominant one in Type A was A1 alleles which were noted (46%), while in Type B, the most dominant were B1 (10%).This study is the first ever report of molecular epidemiology and genetic variation in Pvmsp-3α and Pvmsp-3β genes of P. vivax isolates by using PCR/RFLP from District Mardan and showed a remarkable level of genetic diversity in the studied genes of circulating parasites in the study area. The results of this study will contribute in future studies about the genetic structure of parasite and vaccine development against the malaria.
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Rajashekar JK, Richard J, Beloor J, Prévost J, Anand SP, Beaudoin-Bussières G, Shan L, Herndler-Brandstetter D, Gendron-Lepage G, Medjahed H, Bourassa C, Gaudette F, Ullah I, Symmes K, Peric A, Lindemuth E, Bibollet-Ruche F, Park J, Chen HC, Kaufmann DE, Hahn BH, Sodroski J, Pazgier M, Flavell RA, Smith AB, Finzi A, Kumar P. Modulating HIV-1 envelope glycoprotein conformation to decrease the HIV-1 reservoir. Cell Host Microbe 2021; 29:904-916.e6. [PMID: 34019804 PMCID: PMC8214472 DOI: 10.1016/j.chom.2021.04.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 02/01/2021] [Accepted: 04/20/2021] [Indexed: 11/21/2022]
Abstract
Small CD4-mimetic compounds (CD4mc) sensitize HIV-1-infected cells to antibody-dependent cellular cytotoxicity (ADCC) by facilitating antibody recognition of epitopes that are otherwise occluded on the unliganded viral envelope (Env). Combining CD4mc with two families of CD4-induced (CD4i) antibodies, which are frequently found in plasma of HIV-1-infected individuals, stabilizes Env in a conformation that is vulnerable to ADCC. We employed new-generation SRG-15 humanized mice, supporting natural killer (NK) cell and Fc-effector functions to demonstrate that brief treatment with CD4mc and CD4i-Abs significantly decreases HIV-1 replication, the virus reservoir and viral rebound after ART interruption. These effects required Fc-effector functions and NK cells, highlighting the importance of ADCC. Viral rebound was also suppressed in HIV-1+-donor cell-derived humanized mice supplemented with autologous HIV-1+-donor-derived plasma and CD4mc. These results indicate that CD4mc could have therapeutic utility in infected individuals for decreasing the size of the HIV-1 reservoir and/or achieving a functional cure.
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Mehmood Q, Irfan M, Olushola Ogunkola I, Jaguga F, Ullah I. Rift valley fever and COVID-19 outbreak in Kenya: A double whammy. ACTA ACUST UNITED AC 2021; 19:100685. [PMID: 34124326 PMCID: PMC8188300 DOI: 10.1016/j.jemep.2021.100685] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 06/03/2021] [Indexed: 12/31/2022]
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289
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Shoib S, Ahmad J, Wani MA, Ullah I, Tarfarosh SFA, Masoodi SR, Ramalho R. Depression and anxiety among hyperthyroid female patients and impact of treatment. MIDDLE EAST CURRENT PSYCHIATRY 2021. [DOI: 10.1186/s43045-021-00107-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The aim of the present study was to compare the presence of psychiatric disorders in people with hyperthyroidism and euthyroid patients attending the Endocrinology Outpatient Department at the Shri Maharaja Hari Singh Hospital in Kashmir, India. Seventy-five patients with hyperthyroidism and an equal number of euthyroid patients participated in the study. Participants were selected using stratified random sampling. All patients were female. There was no significant difference between the two groups in terms of demographic features. Hormonal screening was performed by immunoassay and haemagglutination method. For the mental health assessment, the Mini-International Neuropsychiatric Interview (MINI), Hamilton Depression Rating Scale [HAM-D], and Hamilton Anxiety Rating Scale [HAM-A] were used.
Results
There was a higher prevalence of psychiatric disorders among the hyperthyroidism group (60% versus 34.7%). In particular, there was a higher prevalence of major depressive disorder, suicidality, generalised anxiety disorder, panic attacks, and agoraphobia. In some cases, the prevalence of a psychiatric disorder diminished after endocrinological treatment.
Conclusions
Screening patients with hyperthyroid disorders for psychiatric symptoms and disorders, and providing timely care when necessary, can go a long way in improving the quality of life of this population. It is imperative to establish routine screening and timely care of mental health symptoms and disorders in patients with hyperthyroidism.
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Khan AU, Khan QU, Tahir K, Ullah S, Arooj A, Li B, Rehman KU, Nazir S, Khan MU, Ullah I. A Tagetes minuta based eco-benign synthesis of multifunctional Au/MgO nanocomposite with enhanced photocatalytic, antibacterial and DPPH scavenging activities. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112146. [PMID: 34082957 DOI: 10.1016/j.msec.2021.112146] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 12/12/2022]
Abstract
In this research work, facile, economical and eco-benign experimental procedure were adopted to synthesize Au/MgO nanocomposite with the help of Tagetes minuta leaves extract. Phytochemicals present in the leaves of Tagetes minuta were acting as reducing and stabilizing agents to avoid aggregation of nanomaterials during the preparation of Au/MgO nanocomposite. The biologically synthesized nanocomposite were systematically characterized by UV-vis spectroscopy, Scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared microscopy (FTIR), High resolution transmission electron microscopy (HRTEM), Thermogravimetric analysis (TGA), dynamic light scattering (DLS) and elemental mapping. UV-visible spectrum confirmed the presence of MgO and Au due to the presence of two SPR peaks at 315 nm and 528 nm, respectively. Moreover, the Au/MgO nanocomposite exhibited superior photocatalytic, antibacterial, hemolytic, and antioxidant activities. Photocatalytic performance tests of Au/MgO nanocomposite were- appraised by the rapid degradation of the methylene blue (MB) under UV light illumination. More importantly, after four successive cycles of MB degradation, the photocatalytic efficacy remained unchanged, which ensures the stability of the Au/MgO nanocomposite. Furthermore, the antibacterial tests showed that the advanced nanocomposite inhibited the growth of Escherichia coli, Bacillus subtilis, and Staphylococcus aureus with zones of inhibition 18 (±0.3), 21 (±0.5), and 19 (±0.4) mm, respectively. The cytotoxicity study revealed that Au/MgO nanocomposite is nontoxic to ordinary healthy RBCs. Interestingly, the Au/MgO nanocomposite also possesses an excellent antioxidant activity, whereby effectively scavenging 82% stable and harmful DPPH. Overall, the present study concludes that eco-benign Au/MgO nanocomposite has excellent potential for the remediation of bacterial pathogens and degradation of MB.
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Shoib S, Arafat S, Das N, Islam S, Ullah I, de Filippis R. Suicide is multifactorial: There should be a difference between a news report and a scientific report of suicide. ETHICS, MEDICINE AND PUBLIC HEALTH 2021; 17:100643. [DOI: 10.1016/j.jemep.2021.100643] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
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Sartorius B, VanderHeide JD, Yang M, Goosmann EA, Hon J, Haeuser E, Cork MA, Perkins S, Jahagirdar D, Schaeffer LE, Serfes AL, LeGrand KE, Abbastabar H, Abebo ZH, Abosetugn AE, Abu-Gharbieh E, Accrombessi MMK, Adebayo OM, Adegbosin AE, Adekanmbi V, Adetokunboh OO, Adeyinka DA, Ahinkorah BO, Ahmadi K, Ahmed MB, Akalu Y, Akinyemi OO, Akinyemi RO, Aklilu A, Akunna CJ, Alahdab F, Al-Aly Z, Alam N, Alamneh AA, Alanzi TM, Alemu BW, Alhassan RK, Ali T, Alipour V, Amini S, Ancuceanu R, Ansari F, Anteneh ZA, Anvari D, Anwer R, Appiah SCY, Arabloo J, Asemahagn MA, Asghari Jafarabadi M, Asmare WN, Atnafu DD, Atout MMW, Atreya A, Ausloos M, Awedew AF, Ayala Quintanilla BP, Ayanore MA, Aynalem YA, Ayza MA, Azari S, Azene ZN, Babar ZUD, Baig AA, Balakrishnan S, Banach M, Bärnighausen TW, Basu S, Bayati M, Bedi N, Bekuma TT, Bezabhe WMM, Bhagavathula AS, Bhardwaj P, Bhattacharyya K, Bhutta ZA, Bibi S, Bikbov B, Birhan TA, Bitew ZW, Bockarie MJ, Boloor A, Brady OJ, Bragazzi NL, Briko AN, Briko NI, Burugina Nagaraja S, Butt ZA, Cárdenas R, Carvalho F, Charan J, Chatterjee S, Chattu SK, Chattu VK, Chowdhury MAK, Chu DT, Cook AJ, Cormier NM, Cowden RG, Culquichicon C, Dagnew B, Dahlawi SMA, Damiani G, Daneshpajouhnejad P, Daoud F, Daryani A, das Neves J, Davis Weaver N, Derbew Molla M, Deribe K, Desta AA, Deuba K, Dharmaratne SD, Dhungana GP, Diaz D, Djalalinia S, Doku PN, Dubljanin E, Duko B, Eagan AW, Earl L, Eaton JW, Effiong A, El Sayed Zaki M, El Tantawi M, Elayedath R, El-Jaafary SI, Elsharkawy A, Eskandarieh S, Eyawo O, Ezzikouri S, Fasanmi AO, Fasil A, Fauk NK, Feigin VL, Ferede TY, Fernandes E, Fischer F, Foigt NA, Folayan MO, Foroutan M, Francis JM, Fukumoto T, Gad MM, Geberemariyam BS, Gebregiorgis BG, Gebremichael B, Gesesew HA, Getacher L, Ghadiri K, Ghashghaee A, Gilani SA, Ginindza TG, Glagn M, Golechha M, Gona PN, Gubari MIM, Gugnani HC, Guido D, Guled RA, Hall BJ, Hamidi S, Handiso DW, Hargono A, Hashi A, Hassanipour S, Hassankhani H, Hayat K, Herteliu C, Hidru HDD, Holla R, Hosgood HD, Hossain N, Hosseini M, Hosseinzadeh M, Househ M, Hwang BF, Ibitoye SE, Ilesanmi OS, Ilic IM, Ilic MD, Irvani SSN, Iwu CCD, Iwu CJ, Iyamu IO, Jain V, Jakovljevic M, Jalilian F, Jha RP, Johnson KB, Joshua V, Joukar F, Jozwiak JJ, Kabir A, Kalankesh LR, Kalhor R, Kamath A, Kamyari N, Kanchan T, Karami Matin B, Karch A, Karimi SE, Kasa AS, Kassahun G, Kayode GA, Kazemi Karyani A, Keiyoro PN, Kelkay B, Khalid N, Khan G, Khan J, Khan MN, Khatab K, Khazaei S, Kim YJ, Kisa A, Kisa S, Kochhar S, Kopec JA, Kosen S, Koulmane Laxminarayana SL, Koyanagi A, Krishan K, Kuate Defo B, Kugbey N, Kulkarni V, Kumar M, Kumar N, Kurmi OP, Kusuma D, Kuupiel D, Kyu HH, La Vecchia C, Lal DK, Lam JO, Landires I, Lasrado S, Lazarus JV, Lazzar-Atwood A, Lee PH, Leshargie CT, Li B, Liu X, Lopukhov PD, M. Amin HI, Madi D, Mahasha PW, Majeed A, Maleki A, Maleki S, Mamun AA, Manafi N, Mansournia MA, Martins-Melo FR, Masoumi SZ, Mayala BK, Meharie BG, Meheretu HAA, Meles HG, Melku M, Mendoza W, Mengesha EW, Meretoja TJ, Mersha AM, Mestrovic T, Miller TR, Mirica A, Mirzaei-Alavijeh M, Mohamad O, Mohammad Y, Mohammadian-Hafshejani A, Mohammed JA, Mohammed S, Mohammed S, Mokdad AH, Mokonnon TM, Molokhia M, Moradi M, Moradi Y, Moradzadeh R, Moraga P, Mosser JF, Munro SB, Mustafa G, Muthupandian S, Naderi M, Nagarajan AJ, Naghavi M, Naveed M, Nayak VC, Nazari J, Ndejjo R, Nepal S, Netsere HB, Ngalesoni FN, Nguefack-Tsague G, Ngunjiri JW, Nigatu YT, Nigussie SN, Nnaji CA, Noubiap JJ, Nuñez-Samudio V, Oancea B, Odukoya OO, Ogbo FA, Oladimeji O, Olagunju AT, Olusanya BO, Olusanya JO, Omer MO, Omonisi AEE, Onwujekwe OE, Orisakwe OE, Otstavnov N, Owolabi MO, P A M, Padubidri JR, Pakhale S, Pana A, Pandi-Perumal SR, Patel UK, Pathak M, Patton GC, Pawar S, Peprah EK, Pokhrel KN, Postma MJ, Pottoo FH, Pourjafar H, Pribadi DRA, Quazi Syed Z, Rafiei A, Rahim F, Rahman MHU, Rahmani AM, Ram P, Rana J, Ranabhat CL, Rao S, Rao SJ, Rathi P, Rawaf DL, Rawaf S, Rawassizadeh R, Renjith V, Reta MA, Rezaei N, Rezapour A, Ribeiro AI, Ross JM, Rumisha SF, Sagar R, Sahu M, Sajadi SM, Salem MR, Samy AM, Sathian B, Schutte AE, Seidu AA, Sha F, Shafaat O, Shahbaz M, Shaikh MA, Shaka MF, Sheikh A, Shibuya K, Shin JI, Shivakumar KM, Sidemo NB, Singh JA, Skryabin VY, Skryabina AA, Soheili A, Soltani S, Somefun OD, Sorrie MB, Spurlock EE, Sufiyan MB, Taddele BW, Tadesse EG, Tamir Z, Tamiru AT, Tanser FC, Taveira N, Tehrani-Banihashemi A, Tekalegn Y, Tesfay FH, Tessema B, Tessema ZT, Thakur B, Tolani MA, Topor-Madry R, Torrado M, Tovani-Palone MR, Traini E, Tsai AC, Tsegaye GW, Ullah I, Ullah S, Umeokonkwo CD, Unnikrishnan B, Vardavas C, Violante FS, Vo B, Wado YD, Waheed Y, Wamai RG, Wang Y, Ward P, Werdecker A, Wickramasinghe ND, Wijeratne T, Wiysonge CS, Wondmeneh TG, Yamada T, Yaya S, Yeshaw Y, Yeshitila YG, Yilma MT, Yip P, Yonemoto N, Yosef T, Yusefzadeh H, Zaidi SS, Zaki L, Zamanian M, Zastrozhin MS, Zastrozhina A, Zewdie DT, Zhang Y, Zhang ZJ, Ziapour A, Hay SI, Dwyer-Lindgren L. Subnational mapping of HIV incidence and mortality among individuals aged 15-49 years in sub-Saharan Africa, 2000-18: a modelling study. Lancet HIV 2021; 8:e363-e375. [PMID: 34087097 PMCID: PMC8187986 DOI: 10.1016/s2352-3018(21)00051-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/05/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND High-resolution estimates of HIV burden across space and time provide an important tool for tracking and monitoring the progress of prevention and control efforts and assist with improving the precision and efficiency of targeting efforts. We aimed to assess HIV incidence and HIV mortality for all second-level administrative units across sub-Saharan Africa. METHODS In this modelling study, we developed a framework that used the geographically specific HIV prevalence data collected in seroprevalence surveys and antenatal care clinics to train a model that estimates HIV incidence and mortality among individuals aged 15-49 years. We used a model-based geostatistical framework to estimate HIV prevalence at the second administrative level in 44 countries in sub-Saharan Africa for 2000-18 and sought data on the number of individuals on antiretroviral therapy (ART) by second-level administrative unit. We then modified the Estimation and Projection Package (EPP) to use these HIV prevalence and treatment estimates to estimate HIV incidence and mortality by second-level administrative unit. FINDINGS The estimates suggest substantial variation in HIV incidence and mortality rates both between and within countries in sub-Saharan Africa, with 15 countries having a ten-times or greater difference in estimated HIV incidence between the second-level administrative units with the lowest and highest estimated incidence levels. Across all 44 countries in 2018, HIV incidence ranged from 2·8 (95% uncertainty interval 2·1-3·8) in Mauritania to 1585·9 (1369·4-1824·8) cases per 100 000 people in Lesotho and HIV mortality ranged from 0·8 (0·7-0·9) in Mauritania to 676·5 (513·6-888·0) deaths per 100 000 people in Lesotho. Variation in both incidence and mortality was substantially greater at the subnational level than at the national level and the highest estimated rates were accordingly higher. Among second-level administrative units, Guijá District, Gaza Province, Mozambique, had the highest estimated HIV incidence (4661·7 [2544·8-8120·3]) cases per 100 000 people in 2018 and Inhassunge District, Zambezia Province, Mozambique, had the highest estimated HIV mortality rate (1163·0 [679·0-1866·8]) deaths per 100 000 people. Further, the rate of reduction in HIV incidence and mortality from 2000 to 2018, as well as the ratio of new infections to the number of people living with HIV was highly variable. Although most second-level administrative units had declines in the number of new cases (3316 [81·1%] of 4087 units) and number of deaths (3325 [81·4%]), nearly all appeared well short of the targeted 75% reduction in new cases and deaths between 2010 and 2020. INTERPRETATION Our estimates suggest that most second-level administrative units in sub-Saharan Africa are falling short of the targeted 75% reduction in new cases and deaths by 2020, which is further compounded by substantial within-country variability. These estimates will help decision makers and programme implementers expand access to ART and better target health resources to higher burden subnational areas. FUNDING Bill & Melinda Gates Foundation.
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Arsh A, Darain H, Ullah I, Shakil-ur-Rehman S. Diagnostic tests to assess balance in patients with spinal cord injury: a systematic review of their validity and reliability. ASIAN BIOMED 2021; 15:111-118. [PMID: 37551368 PMCID: PMC10388767 DOI: 10.2478/abm-2021-0014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background Sophisticated biomechanical instruments can assess balance in patients with spinal cord injury (SCI) with accuracy and precision; however, they are costly and time consuming to use. Clinical diagnostic tests to assess balance in patients with SCI are less costly and easier to use, but there is limited literature available regarding their reliability and validity. Objectives To review systematically articles reporting the validity and reliability of diagnostic tests used to assess balance function in patients with SCI. Methods We searched for articles in the English language from the earliest record to December 15, 2020, which reported validity or reliability of any clinical instrument or diagnostic test used to assess balance in patients with SCI. Articles assessing balance in paraplegic patients with causes other than SCI were excluded. Databases included MEDLINE, AMED, EMBASE, HMIC, PsycINFO, CINAHL, Scopus, and Google Scholar. The COSMIN Risk of Bias checklist was used to assess the studies included and PRISMA-DTA guidelines were applied. Results We included 16 articles that assessed the validity or reliability of 10 diagnostic tests. The Functional Reach Test (FRT), Berg Balance Scale (BBS), and Mini-Balance Evaluation Systems Test (Mini-BESTest) were assessed by more than 1 study, while the remaining 7 diagnostic tests including the Function in Sitting Test, T-Shirt Test, Motor Assessment Scale item 3, Sitting Balance Score, 5 Times Sit-to-Stand Test, Tinetti scale, and Sitting Balance Measure were assessed by 1 study each. The FRT has good-to-excellent test-retest reliability, excellent inter-rater reliability, and good construct, concurrent, and convergent validity. The BBS has excellent inter-rater and intra-rater reliability, high internal consistency, and good concurrent and construct validity. The Mini-BESTest has excellent test-retest reliability, excellent inter-rater reliability, high internal consistency, and good concurrent, convergent, and construct validity. Conclusions The FRT, BBS, and Mini-BESTest appear to be valid and reliable clinical instruments to assess balance function in patients with SCI.
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Ullah N, Ullah I, Israr M, Rasool A, Akbar F, Ahmad MS, Ahmad S, Mehmood SA, Jabeen H, Saeed K, Khan W, Siraj M, Shah M. Comparative brain analysis of wild and hatchery reared Mahseer (Tor putitora) relative to their body weight and length. BRAZ J BIOL 2021; 82:e231509. [PMID: 34076158 DOI: 10.1590/1519-6984.231509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 09/14/2020] [Indexed: 11/22/2022] Open
Abstract
The present study was aimed at comparing the brain size of mahseer (Tor putitora) in relation to their body weight and standard length, to investigate the potential impact of rearing environment on brain development in fish. The weight of the brain and three of its subdivisions cerebellum (CB), optic tectum (OT), and telencephalon (TC) were measured for both wild and hatchery-reared fish. The data was analysed using multiple analysis of covariance (MANCOVA), analysis of covariance (ANCOVA), and discriminate function analysis (DFA). We found the fish reared under hatchery conditions exhibit smaller brain size related to body weight, when compared to the wild ones. A significant (p<0.5) difference was observed in the length of CB and OT concerning the standard body length while no significant difference was found in TC of the fish from both the origins. The results of the current study highlight a logical assumption that neural deficiency affects the behaviour of fish, that's why the captive-reared fish show maladaptive response and face fitness decline when released to the natural environment for wild stock enhancement. The current study concluded that hatchery-reared fish exhibit variations in gross brain morphology as compared to their wild counterpart.
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Islam M, Inamullah, Ahmad I, Akhtar N, Alam J, Razzaq A, Mohammad K, Mahmood T, Khan FU, Muhammad Khan W, Ahmad I, Ullah I, Shafaqat N, Qamar S. Medicinal plants resources of Western Himalayan Palas Valley, Indus Kohistan, Pakistan: Their uses and degrees of risk of extinction. Saudi J Biol Sci 2021; 28:3076-3093. [PMID: 34025183 PMCID: PMC8117167 DOI: 10.1016/j.sjbs.2021.02.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/10/2021] [Accepted: 02/14/2021] [Indexed: 01/24/2023] Open
Abstract
Present study was intended with the aim to document the pre-existence traditional knowledge and ethnomedicinal uses of plant species in the Palas valley. Data were collected during 2015–2016 to explore plants resource, their utilization and documentation of the indigenous knowledge. The current study reported a total of 65 medicinal plant species of 57 genera belonging to 40 families. Among 65 species, the leading parts were leaves (15) followed by fruits (12), stem (6) and berries (1), medicinally significant while, 13 plant species are medicinally important for rhizome, 4 for root, 4 for seed, 4 for bark and 1 each for resin. Similarly, thirteen species were used as a whole while twelve species as partial for medicinal purpose. Further, it is concluded that every part of plants such as bulb, rhizome, roots, barks, leaves, flowers, fruit and seed were used for various ailments. Moreover, among 65 plants species, 09 species are threatened and placed into Endangered (EN) and Least Concern (LC) categories of IUCN. The recorded data are very useful and reflects the significance of the Palas valley as medicinal plants resource area.
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Nisa NU, Khan W, Khan A, Das SN, Rafiq N, Anwar K, Khan BT, Ullah I, Khan M, Alam A. Description of Lutziella swatensis sp.n. (Trematoda: Dicrocoelidae) from Rattus rattus in Swat, Pakistan. BRAZ J BIOL 2021; 82:e225092. [PMID: 34037073 DOI: 10.1590/1519-6984.225092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 04/13/2020] [Indexed: 11/21/2022] Open
Abstract
A new species of the genus Lutziella (Rohde, 1966) Yamaguti, 1971 is described here and named Lutziella swatensis sp.nov. from the liver of rat (Rattus rattus L.). The new species is characterized by having body flat, smooth, longer than broad with maximum width at the level of the ovary, oral sucker with weak musculature, pharynx small; eosophagus long; caeca of irregular shape which bifurcate on the anterior border of the ovary in to unequal portions, acetabulum weakly muscular, post-testicular, testes lobed, cirrus pouch somewhat median, small in size containing winding seminal vesicle, prostatic complex and short ejaculatory duct. Genital pore median. Ovary post testicular, submedian; seminal receptacle overlapping ovary, laurer's canal present. Vitellaria follicular extending on each side from almost the level of testes to anterior portion of posterior half of the body. Uterus filled with eggs occupying most of the body, eggs oval rather small, numerous, brownish in colour, excretory vesicle tubular with terminal pore. Lutziella swatensis n. sp. is the second species of the genus known from Pakistan as well as the second species described from murid rodents in the world.
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Khan W, Arshad S, Khatoon N, Khan I, Ahmad N, Kamal M, UlHassan H, Khan N, Haq AU, Ilyas M, Ullah S, Ullah I, Mahmoud AH, Mohammed OB. Food handlers: an important reservoir of protozoans and helminth parasites of public health importance. BRAZ J BIOL 2021; 82:e238891. [PMID: 34037080 DOI: 10.1590/1519-6984.238891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 07/23/2020] [Indexed: 11/22/2022] Open
Abstract
Food handlers plays a primary role in the transmission of pathogenically important protozoans and helminth parasites. This study was aimed to evaluate the prevalence of intestinal pathogenic protozoans and helminth parasites among food handlers in and around University of Malakand, Lower Dir, Pakistan. Stool samples were collected from 642 food handlers (all of male) in a cross-sectional study from January to November, 2017. Wet Mount Techniques and concentration methods by using salt and formol-ether solutions. Three hundred and eighty four cases (59.8%) were found infected with one more parasites. Most of the individuals were found infected with helminth (47.6%) as compared to intestinal protozoans (0.93%). Seventy two cases (11.2%) of the cases presented mixed infection with both intestinal protozoan and helminth parasites. The order of prevalence for intestinal helminth was Ancylostoma duodenale (n = 258, 40.1%), followed by Taeniasa ginata (n=96, 14.9%) Ascaris lumbricoides (n = 54, 8.40%) and Trichuris trichura (n=30, 4.60%). For intestinal protozoa, Entamoeba histolytica/dispar (n = 36, 5.64%) was the only protozoan detected. Mono-parasitism was higher than poly-parasitism. Family size income and education level were the factors significantly (P<0.05) associated in the parasites prevalence. Current research showed that IPIs are primarily the foodborne pathogens still an important public health problem in Pakistan. Effective control programs on parasitic diseases transfer and their associated factors are recommended.
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Khan AW, Ullah I, Khan KS, Tahir MJ, Masyeni S, Harapan H. Pulmonary arterial hypertension post COVID-19: A sequala of SARS-CoV-2 infection? Respir Med Case Rep 2021; 33:101429. [PMID: 33996435 PMCID: PMC8114592 DOI: 10.1016/j.rmcr.2021.101429] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/08/2021] [Accepted: 05/08/2021] [Indexed: 12/14/2022] Open
Abstract
It has been suggested that pulmonary arterial hypertension (PAH) could be a potential sequela of coronavirus disease 2019 (COVID-19) in particular in those with hypertension; however, development of PAH after the course of COVID-19 in normotensive individuals are rarely reported. Here, we report a patient who developed PAH two months post-COVID-19. The patient was a 55-year-old female and normotensive, tested positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), developed mild respiratory distress syndrome and necessitated continuous positive airway pressure during the treatment in the hospital. After two months discharged from the hospital with RT-PCR negative for SARS-CoV-2, the patient presented with exertional dyspnea, dry cough, fatigue and episodes of syncope during exertion. Based on clinical presentation, electrocardiography, computed tomography, and transthoracic echocardiography assessment, PAH diagnosis was made. To our knowledge, this is a rare PAH case and this highlights the possible of PAH as sequala that might present in post COVID-19 patients.
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Karim AM, Yasir M, Ali T, Malik SK, Ullah I, Qureshi NA, Yuanting H, Azhar EI, Jin HJ. Prevalence of clinical malaria and household characteristics of patients in tribal districts of Pakistan. PLoS Negl Trop Dis 2021; 15:e0009371. [PMID: 33939717 PMCID: PMC8118523 DOI: 10.1371/journal.pntd.0009371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 05/13/2021] [Accepted: 04/07/2021] [Indexed: 11/18/2022] Open
Abstract
Background Malaria, disproportionately affects poor people more than any other disease of public health concern in developing countries. In resource-constrained environments, monitoring the occurrence of malaria is essential for the success of national malaria control programs. Militancy and military conflicts have been a major challenge in monitoring the incidence and controlling malaria and other emerging infectious diseases. The conflicts and instability in Afghanistan have resulted in the migration of refugees into the war-torn tribal districts of Pakistan’s Khyber Pakhtunkhwa (KPK) province and the possible introduction of many contagious epidemics. Although malaria is very common in all tribal districts, molecular, clinical and epidemiological data are scarce in these high-burden districts. Therefore, for the proper surveillance, detection, and control of malaria, obtaining and analyzing reliable data in these districts is essential. Methodology/Principal findings All 1,127 malaria-suspected patients were sampled within the transmission season in the tribal districts of KPK province between March 2016 to December 2018. After a detailed demographic and clinical investigation of malaria-suspected patients, the data were recorded. The data of the control group was collected simultaneously at the same site. They were considered as uncomplicated cases for statistical analyses. Blood samples were collected from malaria-suspected patients for the detection of Plasmodium species using microscopy and nested PCR (nPCR). Microscopy and nPCR examination detected 78% (n = 882) and 38% (n = 429) Plasmodium-positive patients, respectively. Among1,127 of 429nPCR detected cases with both species of malaria, the frequency of complications was as follows: anemia (n = 71; 16.5%), decompensated shock (n = 40; 9%), hyperpyrexia (n = 117; 27%), hyperparasitaemia (n = 49; 11%) hypoglycemia (n = 45; 10.5%), jaundice (n = 54; 13%), multiple convulsions (n = 37; 9%), and petechia (n = 16; 4%). We observed that 37% (n = 157 out of 429) of those patients infected by both Plasmodium species were children between the ages of 1 and 15 years old. The results revealed that Bajaur (24%), Kurram (20%), and Khyber (18%) districtshada higher proportion of P. vivax than P. falciparum cases. Most of the malaria cases were males (74%). Patients infected by both Plasmodium species tended to less commonly have received formal education and ownership of wealth indicators (e.g., fridge, TV set) was lower. Conclusions/Significance Malaria in tribal districts of the KPK province largely affects young males. P. vivax is a major contributor to the spread of malaria in the area, including severe malaria. We observed a high prevalence of P. vivax in the Bajaur district. Children were the susceptible population to malaria infections whereas they were the least expected to use satisfactory prevention strategies. A higher level of education, a possession of TV sets, the use of bed nets, the use of repellent fluids, and fridges were all associated with protection from malaria. An increased investment in socio-economic development, a strong health infrastructure, and malaria education are key interventions to reduce malaria in the tribal districts. The malaria epidemic and endemic in tribal areas of KPK, Pakistan is a present and constant threat to public health. It has been a great challenge in monitoring the incidence of malaria in tribal districts of KPK because of the military conflict. We report an epidemiological, clinical, and household assessment of malaria endemicity in the six tribal districts of KPK, Pakistan, which is the most neglected area due to militancy and war in Afghanistan. The study sample comprised of1,127malaria-suspectedpatients. Their blood samples were collected for microscopy, nPCR and biochemical analysis. Of the samples collected, 78% were identified as Plasmodium-positive by microscopic analysis, whereas, 38% were determined as Plasmodium-positive by nPCR. Then PCR analysis detected 87% (n = 373 out of 429) and 13% (n = 56 out of 429) P. vivax and P. falciparum cases, respectively. Cases were noticeably higher in males (74%). We found poor hygiene conditions in all the districts we examined, probably caused by low socioeconomics settings. Hyperpyrexia (27%) was the prominent clinical feature among all the cases infected by both P. vivax and P. falciparum. Our findings have substantial implications for both malaria control and public health in the tribal districts of Pakistan.
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Ullah I, Mirza B, Jamil A. The influence of ethical leadership on innovative performance: modeling the mediating role of intellectual capital. JOURNAL OF MANAGEMENT DEVELOPMENT 2021. [DOI: 10.1108/jmd-08-2020-0277] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PurposeRecent research studies have increasingly suggested leadership as a major antecedent to encourage innovative work behavior among business employees. Empirical studies which investigated the influence of various leadership aspects such as style and ethics on employees' innovative performance and unraveled the mechanism through which leadership exerts its impact on employees' innovative work behavior were restricted. Thus, the purpose of this research was to investigate the relationship between ethical leadership and employees' innovative performance by focusing on the mediating role of two forms of the intellectual capital (IC), i.e. human capital and social capital.Design/methodology/approachData for present research were collected through in person administered questionnaire-based survey from the managerial level employees of the targeted sample of the manufacturing firms. Furthermore, due consideration was given while selecting the individuals from R&D departments of these organizations, who were typically involved in knowledge-intensive jobs and where application of intellectual assets was needed.FindingsEthical leadership was observed as to positively influencing employees' innovative performance. Two forms of IC, i.e. human capital and social capital were observed as playing mediating role in the ethical leadership – employees' innovative performance relationship.Originality/valueThe contemporary research study adds value in the literature of the ethical leadership. The most imperative theoretical contribution of the present research study underlines the psychological process, i.e. IC by which ethical leaders encourage innovative behavior among employees.
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