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Alfaleh FZ, Nugrahini N, Matičič M, Tolmane I, Alzaabi M, Hajarizadeh B, Valantinas J, Kim DY, Hunyady B, Abaalkhail F, Abbas Z, Abdou A, Abourached A, Al Braiki F, Al Hosani F, Al Jaberi K, Al Khatry M, Al Mulla MA, Al Quraishi H, Al Rifai A, Al Serkal Y, Alam A, Alashgar HI, Alavian SM, Alawadhi S, Al-Dabal L, Aldins P, Alghamdi AS, Al-Hakeem R, Aljumah AA, Almessabi A, Alqutub AN, Alswat KA, Altraif I, Andrea N, Assiri AM, Babatin MA, Baqir A, Barakat MT, Bergmann OM, Bizri AR, Chaudhry A, Choi MS, Diab T, Djauzi S, El Hassan ES, El Khoury S, Estes C, Fakhry S, Farooqi JI, Fridjonsdottir H, Gani RA, Ghafoor Khan A, Gheorghe L, Goldis A, Gottfredsson M, Gregorcic S, Gunter J, Hamid S, Han KH, Hasan I, Hashim A, Horvath G, Husni R, Jafri W, Jeruma A, Jonasson JG, Karlsdottir B, Kim YS, Koutoubi Z, Lesmana LA, Liakina V, Lim YS, Löve A, Maimets M, Makara M, Malekzadeh R, Memon MS, Merat S, Mokhbat JE, Mourad FH, Muljono DH, Nawaz A, Olafsson S, Priohutomo S, Qureshi H, Rassam P, Razavi H, Razavi-Shearer D, Razavi-Shearer K, Rozentale B, Sadik M, Saeed K, Salamat A, Salupere R, Sanai FM, Sanityoso Sulaiman A, Sayegh RA, Schmelzer JD, Sharara AI, Sibley A, Siddiq M, Siddiqui AM, Sigmundsdottir G, Sigurdardottir B, Speiciene D, Sulaiman A, Sultan MA, Taha M, Tanaka J, Tarifi H, Tayyab G, Ud Din M, Umar M, Videčnik-Zorman J, Yaghi C, Yunihastuti E, Yusuf MA, Zuberi BF, Blach S. Strategies to manage hepatitis C virus infection disease burden - volume 3. J Viral Hepat 2015; 22 Suppl 4:42-65. [PMID: 26513447 DOI: 10.1111/jvh.12474] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 09/06/2015] [Indexed: 02/05/2023]
Abstract
The hepatitis C virus (HCV) epidemic was forecasted through 2030 for 15 countries in Europe, the Middle East and Asia, and the relative impact of two scenarios was considered: increased treatment efficacy while holding the annual number of treated patients constant and increased treatment efficacy and an increased annual number of treated patients. Increasing levels of diagnosis and treatment, in combination with improved treatment efficacy, were critical for achieving substantial reductions in disease burden. A 90% reduction in total HCV infections within 15 years is feasible in most countries studied, but it required a coordinated effort to introduce harm reduction programmes to reduce new infections, screening to identify those already infected and treatment with high cure rate therapies. This suggests that increased capacity for screening and treatment will be critical in many countries. Birth cohort screening is a helpful tool for maximizing resources. Among European countries, the majority of patients were born between 1940 and 1985. A wider range of birth cohorts was seen in the Middle East and Asia (between 1925 and 1995).
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Liakina V, Hamid S, Tanaka J, Olafsson S, Sharara AI, Alavian SM, Gheorghe L, El Hassan ES, Abaalkhail F, Abbas Z, Abdou A, Abourached A, Al Braiki F, Al Hosani F, Al Jaberi K, Al Khatry M, Al Mulla MA, Al Quraishi H, Al Rifai A, Al Serkal Y, Alam A, Alashgar HI, Alawadhi S, Al-Dabal L, Aldins P, Alfaleh FZ, Alghamdi AS, Al-Hakeem R, Aljumah AA, Almessabi A, Alqutub AN, Alswat KA, Altraif I, Alzaabi M, Andrea N, Assiri AM, Babatin MA, Baqir A, Barakat MT, Bergmann OM, Bizri AR, Blach S, Chaudhry A, Choi MS, Diab T, Djauzi S, El Khoury S, Estes C, Fakhry S, Farooqi JI, Fridjonsdottir H, Gani RA, Ghafoor Khan A, Goldis A, Gottfredsson M, Gregorcic S, Hajarizadeh B, Han KH, Hasan I, Hashim A, Horvath G, Hunyady B, Husni R, Jafri W, Jeruma A, Jonasson JG, Karlsdottir B, Kim DY, Kim YS, Koutoubi Z, Lesmana LA, Lim YS, Löve A, Maimets M, Makara M, Malekzadeh R, Matičič M, Memon MS, Merat S, Mokhbat JE, Mourad FH, Muljono DH, Nawaz A, Nugrahini N, Priohutomo S, Qureshi H, Rassam P, Razavi H, Razavi-Shearer D, Razavi-Shearer K, Rozentale B, Sadik M, Saeed K, Salamat A, Salupere R, Sanai FM, Sanityoso Sulaiman A, Sayegh RA, Schmelzer JD, Sibley A, Siddiq M, Siddiqui AM, Sigmundsdottir G, Sigurdardottir B, Speiciene D, Sulaiman A, Sultan MA, Taha M, Tarifi H, Tayyab G, Tolmane I, Ud Din M, Umar M, Valantinas J, Videčnik-Zorman J, Yaghi C, Yunihastuti E, Yusuf MA, Zuberi BF, Gunter J. Historical epidemiology of hepatitis C virus (HCV) in select countries - volume 3. J Viral Hepat 2015; 22 Suppl 4:4-20. [PMID: 26513445 DOI: 10.1111/jvh.12475] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 09/06/2015] [Indexed: 02/05/2023]
Abstract
Detailed, country-specific epidemiological data are needed to characterize the burden of chronic hepatitis C virus (HCV) infection around the world. With new treatment options available, policy makers and public health officials must reconsider national strategies for infection control. In this study of 15 countries, published and unpublished data on HCV prevalence, viraemia, genotype, age and gender distribution, liver transplants and diagnosis and treatment rates were gathered from the literature and validated by expert consensus in each country. Viraemic prevalence in this study ranged from 0.2% in Iran and Lebanon to 4.2% in Pakistan. The largest viraemic populations were in Pakistan (7 001 000 cases) and Indonesia (3 187 000 cases). Injection drug use (IDU) and a historically unsafe blood supply were major risk factors in most countries. Diagnosis, treatment and liver transplant rates varied widely between countries. However, comparison across countries was difficult as the number of cases changes over time. Access to reliable data on measures such as these is critical for the development of future strategies to manage the disease burden.
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Thomas GP, Duelund-Jakobsen J, Dudding TC, Bradshaw E, Nicholls RJ, Alam A, Emmanuel A, Thin N, Knowles CH, Laurberg S, Vaizey CJ. A double-blinded randomized multicentre study to investigate the effect of changes in stimulation parameters on sacral nerve stimulation for constipation. Colorectal Dis 2015; 17:990-5. [PMID: 25916959 DOI: 10.1111/codi.12982] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 02/23/2015] [Indexed: 12/10/2022]
Abstract
AIM Sacral nerve stimulation (SNS) may be offered to patients with constipation who have failed to improve with conservative treatment. The response to SNS is variable, with a significant loss of efficacy in some patients. An increased frequency of stimulation may improve the efficacy of SNS for faecal incontinence. This study aimed to see if alteration of the pulse width or frequency improved the outcome for those with constipation. METHOD Eleven patients with constipation currently being treated by SNS were recruited from three centres. They were randomized to five different protocols of stimulation each applied for 5 weeks. Group 1 used standard settings (pulse width 210 μs, frequency 14 Hz); in the other four groups (Groups 2-5) the pulse width and/or frequency were halved or doubled. Patients and investigators were blinded to the group allocation. RESULTS The Cleveland Clinic constipation score varied significantly between the five groups. Group 1 achieved the lowest score mean (± SD) 13.4 (± 4.4) (P = 0.03). The number of digitations per defaecation was the lowest in Group 4, 90 μs and 14 Hz (P < 0.01). No other variable changed significantly. Standard settings were the most preferred by the recruited patients. CONCLUSION Alteration of pulse width or frequency of stimulation had no significant effect on the outcome of SNS for constipation.
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Butt SK, Alam A, Cohen R, Krogh K, Buntzen S, Emmanuel A. Lack of effect of sacral nerve stimulation for incontinence in patients with systemic sclerosis. Colorectal Dis 2015; 17:903-7. [PMID: 25850948 DOI: 10.1111/codi.12969] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 12/31/2014] [Indexed: 12/13/2022]
Abstract
AIM Systemic sclerosis (SSc) is a multisystem disorder of unknown aetiology leading to the deposition of excessive connective tissue in the skin, blood vessels and internal organs. Gastrointestinal involvement occurs in 90% of cases and the prevalence of faecal incontinence (FI) is 38%. This study comprises the largest case series assessing the efficacy of sacral nerve stimulation (SNS) treatment for incontinence in this patient group. METHOD A retrospective analysis on prospectively collected data was performed on all SSc patients from our two centres who had undergone SNS for FI. RESULTS Ten female patients of mean age of 54 (37-72) years had temporary SNS performed. The mean duration of FI was 13 (2-25) years. All had passive FI. Each patient had preprocedure anorectal physiology and endoanal ultrasound examinations documenting internal sphincter atrophy/fragmentation or reduced anal resting pressure. Overall there was no statistically significant difference (P = 0.57) in the total Wexner incontinence scores before (mean 15.1 ± 2.6 SD) and during temporary SNS procedures (mean 13.1 ± 3.6 SD). Two patients with a significant improvement went on to have permanent SNS with only one achieving a favourable outcome at 1 year. CONCLUSION This study showed that SNS failed to reduce episodes of leakage in nine out of 10 patients with systemic sclerosis affected with incontinence.
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Hussain S, Malik K, Niaz T, Zafar S, Kazi A, Munir M, Yacob O, Shehzad R, Alam A, Maan S, Ahmed M, Rizvi N. Are medical practitioners ready enough to deal with HCV in Karachi, Pakistan? J Clin Virol 2015. [DOI: 10.1016/j.jcv.2015.06.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hasan B, Olsen B, Alam A, Akter L, Melhus Å. Dissemination of the multidrug-resistant extended-spectrum β-lactamase-producing Escherichia coli O25b-ST131 clone and the role of house crow (Corvus splendens) foraging on hospital waste in Bangladesh. Clin Microbiol Infect 2015; 21:1000.e1-4. [PMID: 26115863 DOI: 10.1016/j.cmi.2015.06.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 06/03/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
Abstract
Two hundred and thirty-eight faecal samples from crows foraging on hospital wastes were analysed for extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae. ESBL-producing crow isolates were characterized and compared with 31 patient isolates. Among the crows, 59% carried ESBL producers. These included Escherichia coli, Klebsiella pneumoniae, Raoultella terrigena and Enterobacter cloacae harbouring the genes for CTX-M-1, CTX-M-15, CTX-M-55, CTX-M-79, and CTX-M-14. Human isolates carried only the CTX-M-15 gene. Two-thirds of crow E. coli isolates and all human E. coli isolates were multidrug resistant. Crows and patients shared E. coli sequence types, including the epidemic E. coli O25b-ST131 clone. The scavenging behaviour of crows at poorly managed hospital waste dumps made them potential reservoirs of antibiotic resistance, including ESBLs.
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Henry EG, Lehnertz NB, Alam A, Ali NA, Williams EK, Rahman SM, Ahmed S, El Arifeen S, Baqui AH, Winch PJ. Sociocultural factors perpetuating the practices of early marriage and childbirth in Sylhet District, Bangladesh. Int Health 2014; 7:212-7. [DOI: 10.1093/inthealth/ihu074] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Accepted: 06/04/2014] [Indexed: 11/14/2022] Open
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Ahmad M, Ansari MN, Alam A, Khan TH. Oral dose of citrus peel extracts promotes wound repair in diabetic rats. Pak J Biol Sci 2014; 16:1086-94. [PMID: 24506007 DOI: 10.3923/pjbs.2013.1086.1094] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Diabetic patients wound healing is slower than the healthy individuals. Three citrus peel extracts; Lemon (Citrus limon), Grapes fruits (Citrus paradise) and Orange (Citrus sinensis) promote wound healing in experimental animals. This study investigated the effect of oral treatment with citrus peel extracts on wound repair of the skin of diabetic rats. The extracts were estimated for vitamin C and total carotenoid contents prior to animal study. Diabetes mellitus was induced in rats by intraperitoneal injection of a single dose of streptozotocin (STZ, 75 mg kg(-1) b.wt.). One week after diabetes induction, full thickness excision wounds were made in hyperglycemic rats and were divided groups, each containing 6 rats. The different test group animals were treated with different citrus peel extract orally at the dose of 400 mg kg(-1) body weight daily for 12 days. The blood glucose, body weight and rate of wound closure of each rat were measured every 3rd day during the experimental period. At the end of experiment, granular tissues of wounds were removed and estimated for hydroxylproline and total protein content. The results showed significant reduction in blood glucose and time to wound closure. Tissue growth and collagen synthesis were significantly higher as determined by total protein and hydroxyl proline content. From our experimental data, we propose that oral administration of citrus peel extracts has a therapeutic potential in the treatment of chronic wounds in diabetes.
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Butt TE, Gouda HM, Baloch MI, Paul P, Javadi AA, Alam A. Literature review of baseline study for risk analysis - the landfill leachate case. ENVIRONMENT INTERNATIONAL 2014; 63:149-162. [PMID: 24295846 DOI: 10.1016/j.envint.2013.09.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Revised: 09/16/2013] [Accepted: 09/23/2013] [Indexed: 06/02/2023]
Abstract
There is growing awareness and public concern about environmental impacts of waste management and disposal. Environmental policy instruments have been strengthened and associated governmental programmes have increased in recent years, resulting in high level strategies for waste management. Risk assessment is now an essential tool in the prioritisation of environmental and human health protection. However, regulators need to compare the full range of risks on a sound and consistent basis. Comparing risks from such diverse sources poses a significant challenge, and traditional hazard and risk assessments are no longer sufficient. Consideration now needs to be given to a much wider range of factors if risk assessment is to be used as an aid to more integrated decision-making process. For this purpose, baseline study - the foundation of risk assessment - can play a crucial role. To date limited research has been conducted on the need, parameters, requirements, and constituents of baseline study particularly in the context of how, why, and what information is to be collated in order to render risk assessments more appropriately integrated and complete. To establish the 'state-of-the-art' of baseline study, this paper comprehensively reviews the literature regarding environmental risk assessment in general terms, and then proceeds to review work that is specifically related to landfills and landfill leachate, thereby identifying knowledge gaps and shortfall areas. This review concludes that a holistic baseline study procedure for waste disposal sites, which risk assessors could use for carrying out risk analyses specifically for landfill leachate, does not as yet exist.
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Flora MS, Amin MN, Karim MR, Afroz S, Islam S, Alam A, Hossain M. Risk factors of multi-drug-resistant tuberculosis in Bangladeshi population: a case control study. ACTA ACUST UNITED AC 2013; 39:34-41. [PMID: 23923410 DOI: 10.3329/bmrcb.v39i1.15808] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Despite success in tuberculosis control, multi-drug resistant tuberculosis in Bangladesh is increasing and currently multi-drug-resistant tuberculosis rate is 3.6% in new cases and 19% in re-treatment cases. This study focused on determination of multi-drug-resistant tuberculosis which is warranted for effective prevention strategy. An unmatched case control study was conducted in 2010. Purposively recruited 136 culture-proved multi-drug-resistant- tuberculosis cases and 152 cured tuberculosis patients were interviewed. Associations between exposure and outcome variables were initially tested by chi2-test, t-test. A result was considered significant at p value < 0.05. Effects of exposure variables were also assessed after adjusting for other variables by binary logistic regression models. Crude and adjusted Odds Ratio with 95% Confidence Interval was computed. Younger age (p = 0.008) and, peri-urban locality (p = 0.002) were associated with multi-drug-resistant tuberculosis. History of contact (p < 0.001) and tuberculosis in the past (p < 0.001) were four and eight times, respectively, more likely to influence multi-drug-resistant tuberculosis. Regularity [Odds Ratio 0.05; 95% Confidence Interval (0.01 to 0.39)] and always observation of treatment [Odds Ratio 0.25; 95% Confidence Interval (0.10 to 0.61)], sputum conversion [Odds Ratio 0.02; 95% Confidence Interval (0.01 to 0.08)] negatively associated with multi-drug-resistant tuberculosis. Gender and socio-economic status did not show any influence. Treatment course and sputum conversion was the best predictors. Like other developing countries adequacy of treatment is the most important exposure variable. Strengthening of control activities might contribute in preventing development of resistance in tuberculosis patients.
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Ladha A, Alam A, Idestrup C, Sawyer J, Choi S. Spinal haematoma after removal of a thoracic epidural catheter in a patient with coagulopathy resulting from unexpected vitamin K deficiency. Anaesthesia 2013; 68:856-60. [DOI: 10.1111/anae.12285] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2013] [Indexed: 12/18/2022]
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Alam MA, Chowdhury MZ, Ahmed F, Alam A, Hossain MA. Serotype and serovar distribution of Neisseria gonorrhoeae isolated from high-risk populations in Bangladesh. ACTA ACUST UNITED AC 2013; 38:114-8. [PMID: 23540188 DOI: 10.3329/bmrcb.v38i3.14339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Neisseria gonorrhoeae, the causative agent of gonococcal infection, is known to frequently change their characteristics to evade host immune mechanism. Characterization of the clinical isolates of the organism can lead to identification of the circulating strains and often a sexual network in a community to help in designing the control strategy. Keeping in mind the above consideration, a total of 239 N. gonorrhoeae, isolated from high-risk populations, were characterized for serotypes and serovars by monoclonal antibodies against protein 1 of the organism. Majority of the serotypes were serotype B (142, 59.4%). Majority of the isolates showing resistance to at least one of the antibiotics tested were also serotype B (139, 59.2%), whereas, majority of the isolates showing resistance to any three of the antibiotics (multidrug resistant, MDR) (63%) was serotype A. A total of 41 different serovars were also identified and five of which (Arst, Bropt, Bopt, Arost, and Brop) included the highest percent (49.3%) of the isolates. Many serovars (23/41, 56.1%) were new emergent and included 58 (24.3%) of the isolates investigated. All of the new serovars were resistant to at least one of the antibiotics tested and the highest rate (40/102, 39.2%) was MDR. Serotyping and serovar determination was found contributory to understand the microepidemics of the N. gonorrhoeae isolates. Further studies including antibiogram and contact tracing can efficiently help in control of the disease.
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Kim MG, Lamsal J, Heitmann TW, Tucker GS, Pratt DK, Khan SN, Lee YB, Alam A, Thaler A, Ni N, Ran S, Bud'ko SL, Marty KJ, Lumsden MD, Canfield PC, Harmon BN, Johnson DD, Kreyssig A, McQueeney RJ, Goldman AI. Effects of transition metal substitutions on the incommensurability and spin fluctuations in BaFe2As2 by elastic and inelastic neutron scattering. PHYSICAL REVIEW LETTERS 2012; 109:167003. [PMID: 23215117 DOI: 10.1103/physrevlett.109.167003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Indexed: 06/01/2023]
Abstract
The spin fluctuation spectra from nonsuperconducting Cu-substituted, and superconducting Co-substituted, BaFe(2)As(2) are compared quantitatively by inelastic neutron scattering measurements and are found to be indistinguishable. Whereas diffraction studies show the appearance of incommensurate spin-density wave order in Co and Ni substituted samples, the magnetic phase diagram for Cu substitution does not display incommensurate order, demonstrating that simple electron counting based on rigid-band concepts is invalid. These results, supported by theoretical calculations, suggest that substitutional impurity effects in the Fe plane play a significant role in controlling magnetism and the appearance of superconductivity, with Cu distinguished by enhanced impurity scattering and split-band behavior.
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Alam A, Reichenbach L, Huda F, Ahmed A, Ngo T. O035 PHARMACY AND MEDICINE SELLERS' KNOWLEDGE AND PROVISION OF MISOPROSTOL FOR MENSTRUAL REGULATION IN BANGLADESH. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60465-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Alam A, Bracken H, Winikoff B, Johnston H, Reichenbach L. O034 MENSTRUAL REGULATION USING MEDICATION IS ACCEPTABLE AND FEASIBLE IN BANGLADESH. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60464-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Huq M, Nahar S, Alam A, Imam H, Rahman M. The prevalence of selected high-risk human papillomavirus infections among female sex workers in Dhaka, Bangladesh. Int J STD AIDS 2012; 23:151-2. [PMID: 22422697 DOI: 10.1258/ijsa.2011.011240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Goyal M, Alam A, Bandyopadhyay U. Redox regulation in malaria: current concepts and pharmacotherapeutic implications. Curr Med Chem 2012; 19:1475-503. [PMID: 22360482 DOI: 10.2174/092986712799828328] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 12/19/2011] [Accepted: 12/20/2011] [Indexed: 11/22/2022]
Abstract
Malaria imposes a serious threat to human and becomes more prevalent due to the emergence of drug resistant parasite. Understanding of the underlying mechanism of drug resistance and identification of novel drug targets are key effective processes for the management of malaria. Malaria parasite is highly susceptible to oxidative stress but lives in a pro-oxidant rich environment containing oxygen and iron, which produce a large amount of reactive oxygen species. Management of oxidative stress in malaria parasite is tightly regulated through active redox and antioxidant defense systems. The elevation of oxidative stress as a result of inhibition of any component of this defense system leads to redox imbalance and ultimately parasite death. Therefore, redox system plays an indispensable role for the survival of parasite within the host. Identification of key molecules, which disrupt parasite redox balance by altering key redox reactions and promote oxidative stress in parasites, would be an effective approach to develop novel antimalarial drugs. During the last few decades, contributions by researchers around the globe provide even better understanding of redox biology of malaria parasite. Here, in this review, we are highlighting the knowledge gathered so far regarding the essential redox-active processes and their components in malaria parasite to overcome elevated oxidative insults. We have also given maximum efforts to enlist currently used redox-active antimalarials, their mode of action and pharmacotherapeutic implications.
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Shrestha MS, Alam A. A Comparative Evaluation of Rotator Cuff Injuries of the Shoulder Joint using High Resolution Ultrasound and Magnetic Resonance Imaging. MEDICAL JOURNAL OF SHREE BIRENDRA HOSPITAL 2012. [DOI: 10.3126/mjsbh.v10i1.6443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction: Pathology of the rotator cuff is the cause of most common problems at the shoulder joint and accurate diagnosis is essential for appropriate management. High-resolution real-time ultrasonography and MRI are successful imaging modalities for both rotator cuff and non–rotator cuff disorders and have important implications in the management of rotator cuff pathologies. This study was conducted to Compare the results obtained after the evaluation of rotator cuff injuries of shoulder joint by high resolution Ultrasonography and Magnetic Resonance Imaging. Methods: 50 patients with suspected rotator cuff injuries of the shoulder joint were included in this study over a period of 2years. Patients had presented with various complaints like prolonged pain in the shoulder joint with stiffness, restriction and difficulty in movement of the shoulder joint, traumatic injuries and recurrent dislocations of the shoulder joints. Results: Mean age was 41.6years ( range 15-80 ).Maximum patients were between 41-50 years (24%). 29 were males and 21 were females. In our study diagnostic accuracy of ultrasound in rotator cuff tears was 57. 14% for full thickness tears and 58.33 for partial thickness tears. The diagnostic accuracy of ultrasound in detection of complete tear of the supraspinatus muscle was 57.14% while that of MRI was 100%. Conclusion: High resolution Ultrasound being a dynamic study can be used as the first-line investigation for rotator cuff tear. Full-thickness rotator cuff tears can be identified using ultrasound and MRI with comparable accuracy. DOI: http://dx.doi.org/10.3126/mjsbh.v10i1.6443 Medical Journal of Shree Birendra Hospital Jan-June 2011 10(1) 9-14
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Alam A, Jusuf H, Kartasasmita CB, Setiabudi D, Sudarwati S, Wulandari DA, Suardi AU, Somasetia DH. IL-6 and IFNγ play a role in fatal cases of 5N1 influenza in children. Crit Care 2012. [PMCID: PMC3504854 DOI: 10.1186/cc11740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Turgutalp K, Ozhan O, Akbay E, Tiftik N, Ozcan T, Yilmaz S, Kiykim A, Wu HY, Peng YS, Huang JW, Wu KD, Tu YK, Chien KL, Kacso IM, Moldovan D, Lenghel A, Rusu CC, Gherman Caprioara M, Silva AP, Fragoso A, Pinho A, Silva C, Santos N, Tavares N, Faisca M, Camacho A, Mesquita F, Leao P, Silva AP, Silva C, Santos N, Rato F, Fragoso A, Pinho A, Faisca M, Mesquita F, Leao P, Silva AP, Silva C, Santos N, Rato F, Fragoso A, Pinho A, Faisca M, Mesquita F, Leao P, Oh DJ, Kim HR, Kim SH, Okasha K, Sweilam M, Nagy H, Hassan Rizk M, Kirkpantur A, Afsar B, Chae DW, Chin HJ, Kim S, Fallahzadeh Abarghouei MK, Dormanesh B, Roozbeh J, Kamali-Sarvestani E, Vessal G, Pakfetrat M, Sagheb MM, Imasawa T, Nishimura M, Kawaguchi T, Ishibashi R, Kitamura H, Vlad A, Petrica L, Petrica M, Jianu DC, Gluhovschi G, Ianculescu C, Negru M, Dumitrascu V, Gadalean F, Zamfir A, Popescu C, Giju S, Gluhovschi C, Velciov S, Milas O, Balgradean C, Ursoniu S, Afsar B, Silva AP, Pinho A, Fragoso A, Silva C, Santos N, Faisca M, Mesquita F, Leao P, Soltysiak J, Zachwieja J, Fichna P, Lipkowska K, Skowronska B, Stankiewicz W, Stachowiak-Lewandowska M, Kluska-Jozwiak A, Afghahi H, Prasad N, Bhadauria D, Gupta A, Sharma RK, Gupta A, Kaul A, Jain M, Loboda O, Dudar I, Korol L, Shifris I, Ito K, Ito K, Abe Y, Ogahara S, Yasuno T, Watanabe M, Sasatomi Y, Hisano S, Nakashima H, Saito T, Nogaibayeva A, Tuganbekova S, Taubaldiyeva Z, Bekishev B, Trimova R, Topchii I, Topchii I, Semenovykh P, Galchiskaya V, Efimova N, Scherban T, Yasuda F, Shimizu A, MII A, Fukui M, Postorino M, Alessi E, Dal Moro E, Postorino S, Mannino G, Giandalia A, Mannino D, Pontrelli P, Conserva F, Accetturo M, Papale M, DI Palma AM, Cordisco G, Grandaliano G, Gesualdo L, Kimoto E, Shoji T, Sonoda M, Shima H, Tsuchikura S, Mori K, Emoto M, Ishimura E, Nishizawa Y, Inaba M, Vogel C, Scholbach T, Bergner N, Lioudaki E, Lioudaki E, Stylianou K, Maragkaki E, Stratakis S, Panteri M, Choulaki C, Vardaki E, Ganotakis E, Daphnis E, Iqbal M, Ahmed Z, Mansur M, Iqbal S, Choudhury S, Nahar N, Ali S, Ahmed T, Alam A, Rahman Z, Islam M, Azad Khan A, Ogawa A, Sugiyama H, Kitagawa M, Morinaga H, Inoue T, Takiue K, Kikumoto Y, Uchida HA, Kitamura S, Maeshima Y, Tsuchiyama Y, Makino H, Nazemian F, Jafari M, Zahed NOS, Javidi Dasht Bayaz R, Papale M, DI Paolo S, Vocino G, DI Palma A, Federica C, Rocchetti MT, Grandaliano G, Gesualdo L, Prajitno CW, Ismail G, Ditoiu A, Stanciu S, Herlea V, Motoi O, Striker G, Uribarri J, Vlassara H, Gul B, Oz Gul O, Yildiz A, Eroglu A, Keni N, Ersoy C, Ersoy A, Imamoglu S, Yurtkuran M. Diabetes - Clinical. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Green JM, Mortensen RB, Fong KL, Fan Q, Leu K, Schatz PJ, Woodburn K, Kalim S, Tamez H, Wenger J, Ankers E, Berg A, Karumanchi A, Thadhani R, Guy R, Mireille G, Christelle L, Myriam R, Yves C, Philipppe J, Yokoyama T, Shimonaka Y, Sasaki Y, Yoshida Y, Yamazaki K, Wagner M, Alam A, Busbridge M, Kurtz C, Zimmermann J, Heuschmann P, Wanner C, Ashby D, Schramm L, Bacchetta J, Zaritsky JJ, Lisse TS, Sea JL, Chun RF, Nemeth E, Ganz T, Westerman M, Salusky IB, Hewison M. Anaemia. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Uzzaman MM, Alam A, Nair MS, Borgstein R, Meleagros L. Computed tomography findings of bowel wall thickening: its significance and relationship to endoscopic abnormalities. Ann R Coll Surg Engl 2012; 94:23-7. [PMID: 22524916 PMCID: PMC3954182 DOI: 10.1308/003588412x13171221498983] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2011] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION The aim of this study was to conduct retrospective analysis of abdominopelvic computed tomography (CT) reports, identifying those patients in whom bowel wall thickening (BWT) was observed, and to correlate these reports with subsequent endoscopic evaluation. METHODS Formal reports for all patients undergoing abdominopelvic CT between February 2007 and September 2009 were reviewed. Where patients were identified as having colorectal 'wall thickening', results of subsequent endoscopic evaluations were documented. Only those patients with a report of BWT who had follow-up endoscopy (colonoscopy, sigmoidoscopy) were included in the analysis. RESULTS A total of 165 patients were included. Abnormalities on endoscopy at the exact site of the BWT on CT were found in 95 patients (57.58%); in 36 cases (21.82%) this was a malignant lesion. BWT of the transverse colon was significantly more likely to correspond to an endoscopic finding of cancer than other sites (p=0.034). Rectal bleeding was reported significantly more often in patients with BWT and neoplastic disease on endoscopy compared with those with normal endoscopy (p=0.04). Excluding patients with inflammatory/diverticular lesions, 59.02% of Caucasians had a neoplastic lesion at the site of reported BWT, significantly higher than the other ethnic groups (p=0.008). There were 38 patients (23.03%) who did not present with bowel symptoms and, of these, 6 were diagnosed subsequently with colorectal cancer. CONCLUSIONS This study supports endoscopic evaluation to investigate patients with CT evidence of BWT, especially in cases involving the transverse colon, in Caucasian patients or in association with symptoms of rectal bleeding.
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Chaturvedi R, Binsalamah Z, Alam A, Belley G, Shum-Tim D. 682 Lad endarterectomy with concomitant multivessel coronary bypass grafting: A case-control study of the early & mid-term outcomes. Can J Cardiol 2011. [DOI: 10.1016/j.cjca.2011.07.568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Alam A, Nishtar S, Mohamud K. P1-69 Impact of wealth status on health outcomes in Pakistan. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976c.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Alam A, Sahu S. Magnetic Resonance Imaging in Evaluation of Periventricular Leukomalacia. Med J Armed Forces India 2011; 66:374-80. [PMID: 27365746 DOI: 10.1016/s0377-1237(10)80022-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Accepted: 06/07/2010] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Improvements in perinatal care have resulted in increased survival of infants born prematurely, however neurological damage due to ischaemic infarction of the periventricular white matter is a problem of enormous medical, social and economic importance. Such vascular insult leads to destruction of the periventricular white matter, termed periventricular leukomalacia (PVL). This abnormality is the leading cause of significant morbidity in the survivors of premature birth. Magnetic Resonance Imaging (MRI) is perhaps the only imaging modality, which can accurately detect and quantify periventricular leukomalacia. METHODS Magnetic Resonance Imaging was carried out in 45 children in the age group of 4 weeks to 8 years, with history of premature birth and perinatal hypoxia. These children had neurological deficits ranging from cortical blindness, spastic diplegia, spastic quadriplegia to severe mental retardation. The procedure was carried out on a 1.5 Tesla (Siemens Magnetom Avanto) MR system using available protocols for imaging the paediatric brain. RESULT The study revealed that MR imaging could accurately identify areas of ischaemic infarction of the periventricular white matter both in the early as well as in the late stages. The pattern of abnormalities detected on MRI of the brain in these patients can be considered specific for PVL in the clinical background of premature birth and perinatal hypoxia. CONCLUSION MRI is the ideal imaging modality to detect, quantify and accurately map the areas of brain affected by this hypoxic-ischaemic process. It is presently the gold standard for evaluating the neuroparenchyma in those with perinatal hypoxia. Advanced MR techniques like Diffusion Weighted Imaging (DWI), Proton MR Spectroscopy and DTI have shown great promise in our understanding of the pathophysiology and anatomic considerations of this disease process.
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