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Jose RJ, Hassan S, Butler M, Watson D, Kuitert L. P167 Screening for viral upper respiratory tract infection in pulmonary exacerbations in cystic fibrosis. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-201054c.167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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152
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Bera M, Radcliffe DE, Cabrera ML, Vencill WK, Thompson A, Hassan S. 17β-estradiol and testosterone sorption in soil with and without poultry litter. J Environ Qual 2011; 40:1983-1990. [PMID: 22031582 DOI: 10.2134/jeq2011.0208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
17β-estradiol and testosterone are naturally occurring steroids that co-occur in poultry litter. The effects of litter on sorption of these hormones to soil are not known. Sorption isotherms were developed for C-labeled testosterone and H-labeled estradiol in a Cecil sandy clay loam with and without poultry litter addition. The effect of applying the hormones alone (single-sorbate) or together (multisorbate) was also investigated. C-testosterone sorption in soil increased from 2 to 48 h and remained relatively constant thereafter. H-estradiol sorption in soil was relatively constant from 2 to 24 h and then decreased to 72 h. These differences may reflect transformation of the parent hormones to products with different solid-phase affinity. The maximum sorption coefficient () in soil for C-testosterone (20.2 mL g) was similar to that for H-estradiol (19.6 mL g) in single-sorbate experiments. When hormones were applied together, sorption of both hormones in soil decreased, but the C-testosterone (12.5 mL g) was nearly twice as large as the H-estradiol (7.4 mL g). We propose this resulted from competition between the hormones and their transformation products for sorption sites, with C-testosterone and its expected transformation product (androstenedione) being better competitors than H-estradiol and its expected transformation product (estrone). When poultry litter was mixed with soil, sorption increased for H-estradiol but decreased for C-testosterone. This may have been because poultry litter slowed the transformation of parent hormones. Our results show that poultry litter could have important effects on the mobility of estradiol and testosterone.
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Affiliation(s)
- M Bera
- University of Georgia, Athens, GA, USA.
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Hassan S, Abbass K, Markert R, Akram S. Emphysematous gastritis associated with ulcerative esophagitis. Eur Rev Med Pharmacol Sci 2011; 15:1336-1338. [PMID: 22195369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Emphysematous gastritis is a rare form of gastritis characterized by gaseous dissection of the stomach wall usually secondary to invasion by gas forming organisms, corrosive ingestion, trauma, or gastric infarction. We report a unique case of emphysematous gastritis secondary to ulcerative esophagitis without an underlying history of trauma, ischemia, or ingestion of corrosive agents. The patient responded well to conservative management. Emphysematous gastritis is a deadly infectious disease. Early recognition and management are crucial as there is no specific approach to treatment despite advances in medical science.
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Affiliation(s)
- S Hassan
- Dayton Veterans Affairs Medical Center, Dayton, OH, USA
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Abstract
INTRODUCTION Primary suture-less closure of gastroschisis using negative pressure dressing (wound vacuum) involves the application of an initial preformed Silo with subsequent bedside suture-less closure of the defect using negative pressure dressing. The advantages of this gentle approach are the simple bedside closure without intubation, paralysis or ventilation as well as reduced risk of barotrauma, abdominal compartment syndrome, acidosis, bowel infarction and necrotizing enterocolitis. This study is a report of the technique we used for gastroschisis closure at our institute. METHODS The medical records of 15 newborns who underwent primary suture-less closure of gastroschisis using a negative pressure dressing (wound vacuum) technique between March 2008 and February 2010 were retrospectively reviewed. Outcome criteria such as time on ventilation, time to initiating feeds, time to full feeds, time to discharge from NICU and complications were recorded. RESULTS The median follow-up was 234 days (range: 13-528 days). The time on ventilation was (n = 8: no ventilation; n = 3: 1 day; n = 2: 2-5 days; n = 2: > 5 days). The median time to initiating feeds was 13 days (range: 6-61 days), the median time to full feeds was 20 days (range: 12-91 days) and the median time to discharge was 24 days (range: 21-131 days). 2 patients had a tiny umbilical hernia at last follow-up. CONCLUSION Primary suture-less closure of gastroschisis using a negative pressure dressing (wound vacuum) technique is easily reversible, does not need intubation/ventilation, avoids a trip to the operating room (OR), has minimal to no complications and provides good cosmetic results.
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Affiliation(s)
- S. Hassan
- Michael E DeBakey Department of surgery
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Kang YS, Cha JJ, Hyun YY, Lee MH, Song HK, Cha DR, Bang K, Jeong J, Shin JH, Kang JH, Yang J, Ahn C, Kim JH, Toledo K, Merino A, GonzaLez-Burdiel L, Perez-Saez MJ, Aguera M, Ramirez R, Del Castillo D, Aljama P, Kahveci A, Tugtepe H, Asicioglu E, Nalcaci S, Birdal G, Arikan H, Koc M, Tuglular S, Kaya H, Ozener C, Kocak G, Azak A, Huddam B, Astarci HM, Can M, Duranay M, Tayama Y, Hasegawa H, Takayanagi K, Matsuda A, Shimizu T, Asakura J, Iwashita T, Okazaki S, Hatano M, Kiba T, Ogawa T, Mitarai T, Sanchez JE, Nunez M, Gonzalez I, Fernandez-Vina A, Pelaez B, Quintana A, Rodriguez C, Park KA, Kim EJ, Choi SJ, Kim NR, Park MY, Kim JK, Hwang SD, Cotovio P, Rocha A, Carvalho MJ, Teixeira L, Mendonca D, Rodrigues A, Cabrita A, Ito M, Wu HY, Peng YS, Huang JW, Hu FC, Hung KY, Tsai TJ, Wu KD, Temiz G, Sahin G, Degirmenci N, Ozkurt S, Yalcin AU, Rufino M, Garcia C, Vega N, Macia M, Rodriguez A, Maceira B, Hernandez D, Lorenzo V, Levallois J, Nadeau-Fredette AC, Labbe AC, Laverdiere M, Ouimet D, Vallee M, Matsuda A, Katou H, Tayama Y, Iwanaga M, Ogawa T, Shimizu T, Asakura J, Noiri C, Kanouzawa K, Hasegawa H, Mitarai T, Karakan S, Sezer S, Ozdemir Acar N, Haberal M, Ueda A, Nagai K, Morimoto M, Hirayama A, Yoh K, Saito C, Yamagata K, Parikova A, Vlijm A, deGraaff M, Brabcova I, Viklicky O, Krediet R, Nagamine N, Katoh KI, Yoshitake O, Cho KH, Jung SY, Do JY, Park JW, Yoon KW, Hwang SD, Kim NR, Kim EJ, Chung CH, Park MY, Choi SJ, Kim JK, Mravljak M, Karas B, Pajek J, Pintar T, Benedik M, Gucek A, Tomo T, Kadota JI, Tsuchida K, Minakuchi J, Yamanaka M, Numata A, Masakane I, Fujimori A, Kawanishi H, Naito H, Bordignon J, Manonelles A, Andujar A, Gonzalez-Segura C, Gonzalez MT, Glavas-Boras S, Zlopasa G, Boras S, Smalcelj R, Slavicek J, Knezevic N, Puretic Z, Prasad N, Gupta A, Sinha A, Saxena A, Sharma RK, Kaul A, Ramos R, Gonzalez MT, Vera M, Garcia I, Barbosa F, Teixido J, Garcia C, Cuxart M, Gonzalez C, de la Cruz JJ, Fukuoka K, Sinozaki M, Kato N, Oba I, Harada K, Kanai H, Ota K, Do JY, Kang SW, Cho KH, Park JW, Shin KL, Kim YH, Yoon KW, Prasad N, Gupta A, Sinha A, Sharma RK, Kaul A, Saxena A, Schneider K, Huszar T, Bator B, Di Napoli A, Franco F, Salvatori MF, Di Lallo D, Guasticchi G, Hassan S, Kristal B, Khazim K, Hassan F, Hassan K, Korabecna M, Krizkova V, Kocova J, Tonar Z, Opatrna S, Gaiao S, Beco A, Oliveira A, Santos-Araujo C, Pestana M, Denizot A, Milliard B, Kahveci A, Asicioglu E, Arikan H, Tuglular S, Ozener C, Hsu BG, Lai YH, Wang CH, Fang TC, Yesil H, Paydas S, Balal M, Cinkir U, Sertdemir Y, Santos-Araujo C, Oliveira A, Beco A, Sousa J, Silva N, Santos D, Pestana M, Oliveira A, Beco A, Santos C, Pestana M, Vera M, Fontsere N, Maduell F, Arias M, Bergada E, Cases A, Campistol JM, Grzelak T, Czyzewska K, Mortazavi M, Seirafian S, Halabian M, Emami Naini A, Farajzadegan Z, Moinzade F, Golabchi K, Portoles J, Moreno F, Lopez-Sanchez P, Gomez M, Corchete E, del Peso G, Bajo MA, Rivera M, Arribas G, Ferreira AC, Fernandes V, Sousa J, Vila Lobos A, Nolasco F, Martino F, di Loreto P, Rodighiero MP, Crepaldi C, Ronco C, Asicioglu E, Kahveci A, Nalcaci S, Arikan H, Tuglular S, Ozener C, Cavallini M, Centi A, Broccoli ML, Rocca AR, Testorio M, Borzacca B, Pugliese F, Russo GE, Tokgoz B, Ucar C, Kocyigit I, Somdas MA, Unal A, Vural A, Sipahioglu MH, Oymak O, Utas C, Teixeira L, Rodrigues A, Carvalho MJ, Cabrita A, Mendonca D, Micha T, Takouli L, Karaitianou A, Koupari G, Trompouki S, Arvanitis D, Vlassopoulos D, Ferreira AC, Fernandes V, Vila Lobos A, Nolasco F, Kahveci A, Nalcaci S, Asicioglu E, Birdal G, Arikan H, Tuglular S, Ozener C, Carvalho C, Beco A, Oliveira A, Santos C, Pestana M, Hiramatsu M, Ishida M, Tonozuka Y, Mikami H, Yamanari T, Momoki N, Onishi A, Maruyama K, Ito M, Masakane I, Takahashi T, Chung SH, Han DC, Noh H, Jeon JS, Kwon SH, Lindholm B, Lee HB, Tekeli L, Inal S, Derici U, Celik N, Kiran G, Derin O, Durunay M, Erten Y, Cho JH, Do JY, Park SH, Kim CD, Choi JY, Ryu HM, Kim YL, Kawahara K, Ishihara Y, Iwadou H, Uemura N, Kinashi M, Oobayashi S, Pilcevic D, Tadic-Pilcevic J, Kovacevic Z, Maksic D, Paunic Z, Mitrovic M, Mijuskovic M, Petrovic M. Peritoneal dialysis. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tam VC, Ko Y, Mittmann N, Kumar K, Hassan S, Cheung MC, Chan KK. Cost-effectiveness of systemic therapies for metastatic pancreatic cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.6114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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157
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Aguilar-Mahecha A, Basik M, Chapman JW, Jahan K, Hassan S, Zhu L, Wilson CF, Pritchard KI, Shepherd LE, Pollak MN. Measurement of baseline serum SDF-1 levels as a predictive biomarker for outcomes in the NCIC CTG MA.14 trial of octreotide, a somatostatin analogue in postmenopausal breast cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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158
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159
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Hassan S, Mohd Nor F, Zainal Z, Miskam M. Performance and Emission Characteristics of Supercharged Biomass Producer Gas-diesel Dual Fuel Engine. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/jas.2011.1606.1611] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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160
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Hassan S, Gashau W, Balchin L, Orange G, Wilmshurst A. Incidence of community-acquired meticillin resistant Staphylococcus aureus hand infections in Tayside, Scotland: a guide to appropriate antimicrobial prescribing. J Hand Surg Eur Vol 2011; 36:226-9. [PMID: 21169297 DOI: 10.1177/1753193410394520] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The prevalence of community-acquired meticillin resistant Staphylococcus aureus (ca-MRSA) as an important cause of hand infections has gained much recognition. The clinical impact of this is less well documented in the United Kingdom. This study looks at the incidence of hand infections in an urban Scottish teaching hospital over a 12 month period.
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Affiliation(s)
- S Hassan
- Department of Plastic and Reconstructive Surgery, Ninewells Hospital and Medical School, Dundee, UK.
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161
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Larbi A, Abd El-Moneim A, Nakkoul H, Jammal B, Hassan S. Intra-species variations in yield and quality determinants in Vicia species: 4. Woolly-pod vetch (Vicia villosa ssp. dasycarpa Roth). Anim Feed Sci Technol 2011. [DOI: 10.1016/j.anifeedsci.2011.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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162
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Larbi A, El-Moneim AA, Nakkoul H, Jammal B, Hassan S. Intra-species variations in yield and quality determinants in Vicia species: 3. Common vetch (Vicia sativa ssp. sativa L.). Anim Feed Sci Technol 2011. [DOI: 10.1016/j.anifeedsci.2011.01.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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163
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Hassan S, Visagie S, Mji G. Strain experienced by caregivers of stroke survivors in the Western Cape. South African Journal of Physiotherapy 2011. [DOI: 10.4102/sajp.v67i2.39] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Recovery after stroke is often incomplete and many stroke survivors depend on family caregivers. The demands of caring can negatively impact quality of life of these carers. This study explores levels of strain experienced by caregivers and the variables that impact on their strain. A concurrent, mixed method, descriptive design was utilized. Fifty-seven caregivers of stroke survivors who received rehabilitation at the Western Cape Rehabilitation Centre participated in the study. The Barthel Index and Caregiver Strain Index were utilised to collect quantitative data, which was statistically analysed (p <0.05). Qualitative data was collected through semi-structured interviews and thematically analysed.Fifty eight percent of caregivers were experiencing high levels of strain. The following variables significantly impacted on strain namely, caregiver loss of employment (0.04), emotional pressure (0.01), patient residual cognitive and perceptual impairments (0.01), personality changes (0.01) and physical dependency (0.0012). According to the qualitative data the burden was aggravated by financial problems, patient perceptual problems and patient personality changes. The findings indicate the need for support after discharge, ongoing community support and respite care to enable time off for caregivers.
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164
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Larbi A, Khatib-Salkin A, Jammal B, Hassan S. Seed and forage yield, and forage quality determinants of nine legume shrubs in a non-tropical dryland environment. Anim Feed Sci Technol 2011. [DOI: 10.1016/j.anifeedsci.2010.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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165
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Yazid Bajuri M, Tan BC, Das S, Hassan S, Subanesh S. Compression neuropathy of the common peroneal nerve secondary to a ganglion cyst. Clin Ter 2011; 162:549-552. [PMID: 22262327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
There are various causes of the common peroneal nerve palsy. However, common peroneal nerve palsy caused by ganglia are uncommon. We hereby present a case of a 55-year-old man with a 1 week history of foot drop and swelling in the region of the right leg. Physical examination and nerve conduction study studies confirmed a diagnosis of common peroneal nerve palsy. Magnetic resonance imaging (MRI) revealed a lobulated, elongated cystic-appearing mass anterior to the head of fibula. Surgical decompression of the nerve with removal of the mass was performed. Surgical pathology reports confirmed the diagnosis of a ganglion cyst. Findings on physical examination, nerve conduction study and MRI results of this interesting case are being discussed. We wish to highlight that even a tumour which is benign and within the nerve sheath can cause compression.
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Affiliation(s)
- M Yazid Bajuri
- Department of Orthopaedics, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
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166
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Ali SM, Aguilar-Mahecha A, Chapman JAW, Lipton A, Leitzel K, Jahan K, Hassan S, Shepherd LE, Han L, Wilson CF, Pritchard KI, Pollak MN, Basik M. Abstract P4-09-09: Serum SDF-1: Biomarker of Bone Relapse in the NCIC MA.14 Adjuvant Breast Cancer Trial. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p4-09-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Massague et al have shown that breast cancer cell line subpopulations with elevated bone metastatic activity overexpress chemokine receptor 4 (CXCR4), interleukin 11 (IL11), osteopontin (OPN) and connective tissue growth factor (CTGF) (Cancer Cell 3:537, 2003). CXCR4 overexpression results in bone-homing and extravasation of tumor cells in bone. In MA.14, we found that serum β-CTx was associated with bone-only relapse while Basik et.al showed that higher serum stromal cell-derived factor 1 (SDF-1) (ligand for CXCR-4) levels were associated with worse overall event-free survival (EFS) (ASCO 2010). In this study, we examined concurrently the association of both β-CTx and serum SDF-1 with bone relapse.
Methods: Serum β-CTx (Serum CrossLaps, Nordic Biosciences, Copenhagen, DN) was determined in pretreatment sera from 621 of 667 NCIC CTG MA.14 patients. SDF-1 (CXCL12) (R&D Systems, Minneapolis, MN) levels were successfully determined in the 4 month post-treatment serum (SDF-1) for 508 (76%) of the patients. Trial stratification was by administration of adjuvant chemotherapy, axillary lymph node status, and ER and/or PR status. Recurrence-free survival (RFS) was defined as the time from randomization to the time of recurrence of the primary disease. Adjusted and unadjusted Cox step-wise forward multivariate analyses were used to assess the effects of β-CTx, SDF-1, trial therapy and baseline patient characteristics on non-bone, all bone and bone-only RFS; a factor was added if p<=0.05.
Results: Joint assessment of β-CTx and SDF-1 was possible for 493 (74%) of the 667 patients. Imbalances in who was, or was not, included in this subset led to the trial arm of Tamoxifen + Octreotide LAR having a significant longer unadjusted ITT non-bone RFS (p=0.03-0.06). There was shorter time to bone metastasis of any type with higher lymph node involvement (p=0.001), larger T (p=0.02), and higher log SDF-1 (p=0.03). Meanwhile, high categorical and continuous β-CTx was associated multivariately with shorter bone-only RFS (p=0.04 and 0.01, respectively); higher log SDF-1 was only associated with shorter bone-only RFS (p=0.02) when the number of strata were reduced to 2 categories per factor.
Conclusions: Higher serum SDF-1 level may be associated with bone metastasis, although there is less evidence of its relevance in bone-only relapse than there is for the biomarker β-CTx. Serum SDF-1 deserves further study as a promising predictive factor of bone relapse in breast cancer.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P4-09-09.
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Affiliation(s)
- SM Ali
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - A Aguilar-Mahecha
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - J-AW Chapman
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - A Lipton
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - K Leitzel
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - K Jahan
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - S Hassan
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - LE Shepherd
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - L Han
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - CF Wilson
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - KI Pritchard
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - MN Pollak
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
| | - M. Basik
- Penn State Hershey Medical Center, Hershey, PA; Lebanon VA Medical Center, Lebanon, PA; Segal Cancer Centre/Jewish General Hospital and McGill University, Montreal, QC, Canada; NCIC Clinical Trials Group, Kingston, ON, Canada; SunnybrookHealth Sciences Centre, Toronto, ON, Canada
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Sarri G, Singh DK, Davies JR, Fiuza F, Lancaster KL, Clark EL, Hassan S, Jiang J, Kageiwa N, Lopes N, Rehman A, Russo C, Scott RHH, Tanimoto T, Najmudin Z, Tanaka KA, Tatarakis M, Borghesi M, Norreys PA. Observation of postsoliton expansion following laser propagation through an underdense plasma. Phys Rev Lett 2010; 105:175007. [PMID: 21231057 DOI: 10.1103/physrevlett.105.175007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Indexed: 05/30/2023]
Abstract
The expansion of electromagnetic postsolitons emerging from the interaction of a 30 ps, 3×10¹⁸ W cm⁻² laser pulse with an underdense deuterium plasma has been observed up to 100 ps after the pulse propagation, when large numbers of postsolitons were seen to remain in the plasma. The temporal evolution of the postsolitons has been accurately characterized with a high spatial and temporal resolution. The observed expansion is compared to analytical models and three-dimensional particle-in-cell results, revealing a polarization dependence of the postsoliton dynamics.
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Affiliation(s)
- G Sarri
- Queens University Belfast, United Kingdom
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Larbi A, Abd El-Moneim A, Nakkoul H, Jammal B, Hassan S. Intra-species variations in yield and quality in Lathyrus species: 1. Grasspea (L. sativus L.). Anim Feed Sci Technol 2010. [DOI: 10.1016/j.anifeedsci.2010.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Larbi A, El-Moneim A, Nakkoul H, Jammal B, Hassan S. Intra-species variations in yield and quality in Lathyrus species: 2. Dwarf chickling (L. cicera L.). Anim Feed Sci Technol 2010. [DOI: 10.1016/j.anifeedsci.2010.07.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Erel E, Vlachou E, Athanasiadou M, Hassan S, Chandrasekar C, Peart F. Management of radiation-induced sarcomas in a tertiary referral centre: A review of 25 cases. Breast 2010; 19:424-7. [DOI: 10.1016/j.breast.2010.04.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 04/08/2010] [Accepted: 04/18/2010] [Indexed: 12/23/2022] Open
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Larbi A, Hassan S, Kattash G, Abd El-Moneim A, Jammal B, Nabil H, Nakkul H. Annual feed legume yield and quality in dryland environments in north-west Syria: 2. Grain and straw yield and straw quality. Anim Feed Sci Technol 2010. [DOI: 10.1016/j.anifeedsci.2010.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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172
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Larbi A, Hassan S, Kattash G, El-Moneim AA, Jammal B, Nabil H, Nakkul H. Annual feed legume yield and quality in dryland environments in north-west Syria: 1. Herbage yield and quality. Anim Feed Sci Technol 2010. [DOI: 10.1016/j.anifeedsci.2010.07.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Matsha T, Yako Y, Hassan S, Hoffmann M, Van Der Merwe L, Erasmus RT. Association of the ENPP1 rs997509 polymorphism with obesity in South African mixed ancestry learners. East Afr Med J 2010; 87:323-329. [PMID: 23451554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND The Ectonucleotide Pyrophosphatase Phosphodiesterasel (ENPP1) polymorphisms have been associated with metabolic traits. There is no data on the effect of ENPP1 in South African children or adults. OBJECTIVE To investigate the role of K121Q (rs1044498), rs997509 and rs9402349 in obesity and other components of the metabolic syndrome. DESIGN A case-control study. SUBJECTS Sixty four obese and 64 lean mixed ancestry learners. SETTING Western Cape, South Africa. MAIN OUTCOME MEASURE The ENPP1 rs997509T allele is independently associated with obesity in children of mixed ancestry from South Africa. RESULTS The T allele frequency of the rs997509 differed significantly between obese and controls, p=0.0100 and increased the risk of being obese, p = 0.0238. Furthermore, the estimated effect of the T allele was an increase of 8.6 cm in waist circumference, 10.2 kg in weight and a corresponding 4.9 kg/m2 in BMI. Individuals carrying both the 121Q and the T allele of rs997509 were more associated with obesity (odds ratio = 3.85, 95% CI: 1.13 to 13.09) whilst those carrying the C allele of rs997509 in the presence of 121Q were likely to be lean with odds ratio of obesity 0.41 (95% CI: 0.19 to 0.87). CONCLUSION Our findings suggest that ENPP1 polymorphisms may contribute to different metabolic characteristics, all of which are associated with insulin resistance in mixed ancestry children of South Africa. However, a larger study is required to confirm findings of this study.
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Affiliation(s)
- T Matsha
- Department of Biomedical Technology, Faculty of Health and Wellness Science, Cape Peninsula University of Technology, P. O. Box 1906, Bellville, 7530, Cape Town, South Africa
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Khairul AH, Chem YK, Keniscope C, Rosli J, Hassan S, Mat J, Chua KB. Broad reactive monoclonal antibodies for rapid identification of enteroviruses show cross-reactivity with chikungunya virus infected cells. Malays J Pathol 2010; 32:49-52. [PMID: 20614726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In the past decade, enterovirus 71 (EV71) and chikungunya (CHIK) virus have re-emerged periodically causing serious public health problems in Malaysia, since their first emergence in 1997 and 1998 respectively. This study demonstrates that CHIK virus causes similar patterns of cytopathic effect in cultured Vero cells as some enteroviruses. They also show positive cross-reaction on direct immunofluorescence staining using monoclonal antibodies meant for typing enteroviruses. Without adequate clinical and epidemiological information for correlation, CHIK virus isolated from patients with acute febrile rash can be wrongly reported as untypeable enterovirus due to its cross-reactivity with commercial pan-enterovirus monoclonal antibodies. This is due to the diagnostic laboratory being unaware of such cross-reactions as it has not been reported previously. Final identification of the virus could be determined with specific antibodies or molecular typing using specific oligonucleotide primers for the CHIK virus.
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Affiliation(s)
- A H Khairul
- The National Public Health Laboratory, Ministry of Health of Malaysia, Sungai Buloh, Selangor, Malaysia
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Basik M, Aguilar-Mahecha A, Chapman JW, Jahan K, Hassan S, Han L, Wilson CF, Pritchard KI, Shepherd LE, Pollak MN. Use of serum SDF-1 as a predictive biomarker for outcomes in the NCIC CTG MA.14 trial of octreotide, a somatostatin analogue in postmenopausal breast cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Travers B, Henderson S, Vasireddy S, SeQueira EJ, Cornell PJ, Richards S, Khan A, Hasan S, Withrington R, Leak A, Sandhu J, Joseph A, Packham JC, Lyle S, Martin JC, Goodfellow RM, Rhys-Dillon C, Morgan JT, Mogford S, Rowan-Phillips J, Moss D, Wilson H, McEntegart A, Morgan JT, Martin JC, Rhys Dillon C, Goodfellow R, Gould L, Bukhari M, Hassan S, Butt S, Deighton C, Gadsby K, Love V, Kara N, Gohery M, Keat A, Lewis A, Robinson R, Bastawrous S, Roychowdhury B, Roskell S, Douglas B, Keating H, Giles S, McPeake J, Molloy C, Chalam V, Mulherin D, Price T, Sheeran T, Benjamin SR, Thompson PW, Cornell P, Siddle HJ, Backhouse MR, Monkhouse RA, Harris NJ, Helliwell PS, Azzopardi L, Hudson S, Mallia C, Cassar K, Coleiro B, Cassar PJ, Aquilina D, Camilleri F, Serracino Inglott A, Azzopardi LM, Robinson S, Peta H, Margot L, David W, Mann C, Gooberman-Hill R, Jagannath D, Healey E, Goddard C, Pugh MT, Gilham L, Bawa S, Barlow JH, MacFarland L, Tindall L, Leddington Wright S, Tooby J, Ravindran J, Perkins P, McGregor L, Mabon E, Bawa S, Bond U, Swan J, O'Connor MB, Rathi J, Regan MJ, Phelan MJ, Doherty T, Martin K, Ruth C, Panthakalam S, Bondin D, Castelino M, Evin S, Gooden A, Peacock C, Teh LS, Ryan SJ, Bryant E, Carter A, Cox S, Moore AP, Jackson A, Kuisma R, Pattman J, Juarez M, Quilter A, Williamson L, Collins D, Price E, Chao Y, Mooney J, Watts R, Graham K, Birrell F, Reed M, Croyle S, Stell J, Vasireddy S, Storrs P, McLoughlin YM, Scott G, McKenna F, Papou A, Rahmeh FH, Richards SC, Westlake SL, Birrell F, Morgan L, Baqir W, Walsh NE, Ward L, Caine R, Williams M, Breslin A, Owen C, Ahmad Y, Morgan L, Blair A, Birrell F, Ramachandran Nair J, Zia A, Mewar D, Peffers GM, Larder R, Dockrell D, Wilson S, Cummings J, Bansal J, Barlow J. BHPR: Audit/Service Delivery [239-277]: 239. Arma-Based Audit of Rheumatology Service Delivered Predominantly Outside the Traditional Hospital Setting. Rheumatology (Oxford) 2010. [DOI: 10.1093/rheumatology/keq730] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Antsaklis A, Papantoniou N, Mesogitis S, Koutra P, Hassan S, Aravantinos D. In utero diagnosis and treatment of severe rhesus iso-immunisation by use of intravascular techniques. J OBSTET GYNAECOL 2009. [DOI: 10.3109/01443619109013553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Urogenital atrophy is a poorly defined entity. This prospective study looked at the effect of conventional HRT on urogenital atrophy. One hundred and sixty-three women were studied in a 12-month period. The incidence of urinary symptoms and clinical evidence of urogenital atrophy was found to be similar in both the 'HRT group' and the 'no HRT group'. This can be explained by the new oestrogen receptor theory. Conventional HRT does not seem to protect women from urogenital atrophy and receptor specific oestrogen therapy may be required to address the problem of urogenital atrophy and postmenopausal urinary symptoms.
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Affiliation(s)
- A Rane
- Department of Urogynaecology, Kirwan Hospital for Women, Townsville Queensland, Australia
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180
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Al-Takroni AM, Parvathi CK, Mendis KB, Hassan S, Qunaibi AM. Early oral intake after caesarean section performed under general anaesthesia. J OBSTET GYNAECOL 2009; 19:34-7. [PMID: 15512218 DOI: 10.1080/01443619965921] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This study assesses the outcome and benefits of initiation of oral intake 4 hours after caesarean section done under general anaesthesia. After uncomplicated sections, 207 healthy women were alternately assigned either to start oral intake 4 hours after operation, with concurrent stoppage of infusions (n = 106) or to receive 'standard'postoperative care (n = 101). Early oral intake was not associated with increase in gastrointestinal morbidity. Compared with the control group the early intake group had a shorter mean time to first flatus and to first bowel evacuation; initiated breast feeding earlier; ambulated more and were more satisfied. Both groups had similar urine output in the first 24 hours. The nurse's work load decreased when they looked after the early intake group. It is concluded that post-caesarean mothers could be adequately hydrated orally after discontinuing infusions in the early postoperative period without apparent harm and with benefit.
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Affiliation(s)
- A M Al-Takroni
- Department of Obstetrics and Gynaecology, Al Yamamah Hospital, Riyadh, Kingdom of Saudi Arabia
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181
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Matsha T, Hassan S, Bhata A, Yako Y, Fanampe B, Somers A, Hoffmann M, Mohammed Z, Erasmus RT. Metabolic syndrome in 10-16-year-old learners from the Western Cape, South Africa: Comparison of the NCEP ATP III and IDF criteria. Atherosclerosis 2009; 205:363-6. [PMID: 19233359 DOI: 10.1016/j.atherosclerosis.2009.01.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Accepted: 01/21/2009] [Indexed: 02/06/2023]
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182
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Zeehaida M, Wan Nor Amilah WAW, Amry AR, Hassan S, Sarimah A, Rahmah N. A study on the usefulness of Techlab Entamoeba histolytica II antigen detection ELISA in the diagnosis of amoebic liver abscess (ALA) at Hospital Universiti Sains Malaysia (HUSM), Kelantan, Malaysia. Trop Biomed 2008; 25:209-216. [PMID: 19287359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Amoebic serodiagnosis at Hospital Universiti Sains Malaysia (HUSM), Kelantan employs an indirect haemagglutination assay (IHA) which detects anti-Entamoeba histolytica antibodies in patients' serum samples. In an amoebiasis endemic area such as Kelantan, interpretation of a positive IHA result can be problematic due to the high background antibody levels. The TechLab E. histolytica II ELISA is a commercial kit for detection of specific Gal/GalNAc lectin antigen in stool samples, and has been reported to be able to detect the antigen in serum samples from patients with amoebic liver abscess (ALA). Thus in this study we investigated the usefulness of TechLab E. histolytica II ELISA for diagnosis of ALA by comparing it with IHA. This is a cross sectional study involving 58 suspected ALA patients who were admitted to the surgical ward, HUSM, Kelantan. The diagnosis of ALA was established based on clinical symptoms and signs, ultrasound and/or CT scan results. The serum specimens obtained from the patients were tested with IHA (Dade Behring Diagnostics, Marburg, Germany) and TechLab E. histolytica II ELISA (Techlab, Blacksburg, Virginia, USA) according to the manufacturers' instructions. Of the 58 patients, 72.4% (42) were positive by IHA and only 8.6% (5) were positive by the TechLab E. histolytica II ELISA. Agreement between the IHA and ELISA was poor (kappa value 0.019, p=0.691). There was also no correlation between ELISA results and IHA antibody titers. The TechLab E. histolytica II ELISA was not sensitive in detecting amoebic antigen in samples from ALA patients. In addition the results of the test did not correlate with the IHA anti-E. histolytica antibody titres. Therefore, the TechLab E. histolytica II ELISA was found not to be useful for serological diagnosis of ALA at HUSM.
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Affiliation(s)
- M Zeehaida
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
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183
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Connolly CM, Alsousou J, Hassan S, Williams NW. Don't avoid the sesamoids: fracture to the ulnar sesamoid of the first metacarpophalangeal joint. Emerg Med J 2008; 25:184. [DOI: 10.1136/emj.2007.053579] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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184
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Sacher J, Wilson A, Houle S, Hassan S, Stewart D, Rusjan P, Meyer J. Monoamine oxidase A in the postpartum period. Neuroimage 2008. [DOI: 10.1016/j.neuroimage.2008.04.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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185
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Wilson B, Hassan S, Kocheta A. Accurate, single pass retrograde distal interphalangeal joint K-wiring. Ann R Coll Surg Engl 2007; 89:726-7. [PMID: 17969237 DOI: 10.1308/rcsann.2007.89.7.726b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- B Wilson
- Orthopaedic Department, Rotherham General Hospital,Rotherham, UK
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Abstract
BACKGROUND Hydatid disease is common in sheep rearing communities, often presenting with hepatic cysts in a majority of cases. Musculo-skeletal involvement as occurred in our patient is an unusual manifestation. Hydatid disease should be considered a differential of superficial and soft tissue swellings in our environment. METHOD A 27-year-old HIV positive widow on antiretroviral therapy, who presented with intramuscular hydatid cyst in the right lower quadrant of the anterior abdominal wall is presented. RESULT Following total excision and chemotherapy with albendazole, the patient did well and remained symptom free two years later. CONCLUSION Though a rarity, hydatid cyst does occur in the musculo-skeletal system, presenting as a superficial swelling. Correct surgical management, including the intra-operative avoidance of spillage of cyst fluid demands pre-operative diagnosis or at least a high index of suspicion. Hydatid cyst should therefore be kept in mind in the differential diagnosis of superficial swellings of musculo-skeletal origin in sheep rearing communities such as ours.
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Affiliation(s)
- K N Ozoilo
- Surgery Department, Jos University Teaching Hospital, Jos, Nigeria.
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187
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Hassan S, Sidek DS, Shah Jihan WD, Phutane G, Mutum SS. Massive lingual teratoma in a neonate. Singapore Med J 2007; 48:e212-4. [PMID: 17657368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Teratoma of the tongue is a rare entity. We present a male newborn with massive lingual teratoma and cleft palate, which surprisingly did not cause immediate airway obstruction. This case illustrates a huge mass in the oral cavity, which was missed on antenatal ultrasonography because it did not present with polyhydramnios. The mass was excised under general anaesthesia. Histopathologically, it consisted of all three layers of embryonic elements with predominantly glial tissue. Postoperatively, the patient developed hypoglossal nerve palsy, and no recurrence was detected after four years.
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Affiliation(s)
- S Hassan
- Department of Otorhinolaryngology-Head & Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
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Abdullah B, Hassan S, Sidek D, Jaafar H. Adenoid mast cells and their role in the pathogenesis of otitis media with effusion. J Laryngol Otol 2007; 120:556-60. [PMID: 16834804 DOI: 10.1017/s0022215106000818] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/31/2005] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Otitis media with effusion (OME) is an inflammation of the middle ear in which a collection of liquid is present in the middle-ear space while the tympanic membrane is intact. The association between adenoid inflammation and OME has long been noted but the exact mechanism is still much debated. We studied the role of adenoid mast cells in the causation of OME. OBJECTIVE To study the distribution and role of adenoid mast cells in the causation of OME. METHODOLOGY A cross-sectional, prospective study was carried out in the otorhinolaryngologic clinic, department of otorhinolaryngology (ORL), Science University of Malaysia, from June 1999 to September 2001. A total number of 50 cases were studied. Twenty-five of these patients underwent adenoidectomy, while another 25 patients underwent adenoidectomy and myringotomy with ventilation tube insertion. The adenoid specimens from all patients were examined for the number of adenoid mast cells present, using light microscopy and toluidine blue as the staining agent. The results were analysed using SPSS version 10.0 computer software. RESULT The population of adenoid mast cells in children with OME was significantly greater than that in children without OME (p=0.000). CONCLUSION The increased number of adenoid mast cells in patients with OME suggests that inflammation may play a role in this condition.
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Affiliation(s)
- B Abdullah
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia.
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190
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Romero R, Espinoza J, Gotsch F, Kusanovic JP, Friel LA, Erez O, Mazaki-Tovi S, Than NG, Hassan S, Tromp G. The use of high-dimensional biology (genomics, transcriptomics, proteomics, and metabolomics) to understand the preterm parturition syndrome. BJOG 2006; 113 Suppl 3:118-35. [PMID: 17206980 PMCID: PMC7062297 DOI: 10.1111/j.1471-0528.2006.01150.x] [Citation(s) in RCA: 151] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
High-dimensional biology (HDB) refers to the simultaneous study of the genetic variants (DNA variation), transcription (messenger RNA [mRNA]), peptides and proteins, and metabolites of an organ, tissue, or an organism in health and disease. The fundamental premise is that the evolutionary complexity of biological systems renders them difficult to comprehensively understand using only a reductionist approach. Such complexity can become tractable with the use of "omics" research. This term refers to the study of entities in aggregate. The current nomenclature of "omics" sciences includes genomics for DNA variants, transcriptomics for mRNA, proteomics for proteins, and metabolomics for intermediate products of metabolism. Another discipline relevant to medicine is pharmacogenomics. The two major advances that have made HDB possible are technological breakthroughs that allow simultaneous examination of thousands of genes, transcripts, and proteins, etc., with high-throughput techniques and analytical tools to extract information. What is conventionally considered hypothesis-driven research and discovery-driven research (through "omic" methodologies) are complementary and synergistic. Here we review data which have been derived from: 1) genomics to examine predisposing factors for preterm birth; 2) transcriptomics to determine changes in mRNA in reproductive tissues associated with preterm labour and preterm prelabour rupture of membranes; 3) proteomics to identify differentially expressed proteins in amniotic fluid of women with preterm labour; and 4) metabolomics to identify the metabolic footprints of women with preterm labour likely to deliver preterm and those who will deliver at term. The complementary nature of discovery science and HDB is emphasised.
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Affiliation(s)
- R Romero
- Perinatology Research Branch, Intramural Division, National Institute of Child Health and Human Development, NIH/DHHS, Hutzel Women's Hospital, Bethesda, MD 20892, USA.
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Abstract
The implicit paradigm that has governed the study and clinical management of preterm labour is that term and preterm parturition are the same processes, except for the gestational age at which they occur. Indeed, both share a common pathway composed of uterine contractility, cervical dilatation and activation of the membranes/decidua. This review explores the concept that while term labour results from physiological activation of the components of the common pathway, preterm labour arises from pathological signalling and activation of one or more components of the common pathway of parturition. The term "great obstetrical syndromes" has been coined to reframe the concept of obstetrical disease. Such syndromes are characterised by: (1) multiple aetiology; (2) long preclinical stage; (3) frequent fetal involvement; (4) clinical manifestations that are often adaptive in nature; and (5) gene-environment interactions that may predispose to the syndromes. This article reviews the evidence indicating that the pathological processes implicated in the preterm parturition syndrome include: (1) intrauterine infection/inflammation; (2) uterine ischaemia; (3) uterine overdistension; (4) abnormal allograft reaction; (5) allergy; (6) cervical insufficiency; and (7) hormonal disorders (progesterone related and corticotrophin-releasing factor related). The implications of this conceptual framework for the prevention, diagnosis, and treatment of preterm labour are discussed.
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Affiliation(s)
- R Romero
- Perinatology Research Branch, National Institute of Child Health and Human Development, NIH/DHHS, Bethesda, MD 20892, USA.
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Abstract
BACKGROUND Appendicitis still remains a diagnostic challenge particularly in women and extremes of age. The incidence of appendicectomy for suspected appendicitis is higher but declining in the developed countries in contrast with a low but increasing incidence in Africa. OBJECTIVE To describe the characteristics of appendicitis at Kenyatta National Hospital, with emphasis on epidemiological oddities. DESIGN A prospective descriptive study. SETTING Kenyatta National Hospital, a 2000 bed teaching and referral hospital in Nairobi, Kenya SUBJECTS One hundred and eighty nine patients managed for suspected acute appendicitis between July 2000 and June 2001. RESULTS There were 116 males and 73 females. The peak incidence was in the third decade. Sixty four percent of patients were below 30 years of age. The elderly (< 60 years of age) accounted for 1.6% of cases. The rate of false appendicectomy was 18.0%. This rate of negative appendicectomies was 12.9% for males and 30.1% for females. The rate of perforation/gangrene was 29.7%. Hospital stay averaged 6.4 days. Overall morbidity was 12.3%. It was 19.4% in perforated appendicitis and 7.6% in non-perforated appendicitis. There was no mortality. CONCLUSION The incidence of appendicitis has increased at Kenyatta National Hospital over the last 30 years. The disease is common in men in their third decade. These odd characteristics warrant further investigations.
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Hillery C, Hassan S, Greenwald S. The effect of distension on the spacing between elastic lamellar units in the pig carotid artery. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)84252-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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194
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Harvinder S, Hassan S, Sidek DS, Hamzah M, Samsudin AR, Philip R. Underlay myringoplasty: comparison of human amniotic membrane to temporalis fascia graft. Med J Malaysia 2005; 60:585-9. [PMID: 16515109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Human amniotic membrane as a homograft material was compared to temporalis fascia to close tympanic membrane perforations in 50 patients with chronic otitis media. Human amniotic membrane was used in 20 patients while temporalis fascia was used in the remaining 30. Anatomical closure of the perforation and reduction of the air-bone gap was measured. The graft uptake showed a 65% success rate for the amniotic membrane and 56.7% for the temporalis fascia at 3 months post-operatively. Significant closure of air-bone gap was observed in the human amniotic group. These results indicate comparable outcomes between human amniotic membrane and the temporalis fascia graft.
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Affiliation(s)
- S Harvinder
- Department of ORL & HNS, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Jabatan ENT, Hospital Ipoh, Jalan Hospital, 30990, Ipoh, Perak
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195
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Abstract
BACKGROUND Kenya has a soaring rate of road traffic fatalities. Available evidence suggests significant alcohol-relatedness to trauma. We know little about the prevalence of alcohol-related injuries in Nairobi. OBJECTIVE To determine the extent and pattern of alcohol use in subjects admitted following road traffic accident. DESIGN A descriptive hospital based survey. SETTING Kenyatta National Hospital (KNH)- a university affiliated hospital in Nairobi, Kenya. RESULTS The overall incidence of alcohol use was 26.3%. This was higher in males (29.6%) than females (9.1%). Use was 24.4%, 31.0%, 28.6% and 13.6% in the 16-25, 26-35, 36-45 and 46-55 age groups respectively. The mean ages, pre-hospital times and ISS were similar for the AUG and NAUG. The incidence of males, weekend injuries, night collisions, and pedestrian involvement was 94.4%, 69.4%, 41.7%, 77.8% in the AUG and 83.2%, 35.6%, 19.8% and 61.4% in the NAUG respectively. The incidence of head and extremity injuries in AUG was 27.8% and 50% respectively compared to 11.9% and 66.3% in the NAUG. Treatment costs were higher for the NAUG. CONCLUSIONS The results suggest a high incidence and potential alcohol-relatedness to road trauma in Nairobi. The study calls for objective evaluation of the extent, interactions and effects of this modifiable trauma factor.
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Affiliation(s)
- S Hassan
- Department of Human Anatomy, College of Health Sciences. University of Nairobi, P.O. Box 30197. Nairobi, Kenya
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Affiliation(s)
- D. Tripathy
- Univ of Texas Southwestern Medcl Ctr, Dallas, TX
| | - S. Hassan
- Univ of Texas Southwestern Medcl Ctr, Dallas, TX
| | - U. Verma
- Univ of Texas Southwestern Medcl Ctr, Dallas, TX
| | - P. Gurnani
- Univ of Texas Southwestern Medcl Ctr, Dallas, TX
| | - A. Nandi
- Univ of Texas Southwestern Medcl Ctr, Dallas, TX
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Espinoza J, Gonçalves LF, Romero R, Nien JK, Stites S, Kim YM, Hassan S, Gomez R, Yoon BH, Chaiworapongsa T, Lee W, Mazor M. The prevalence and clinical significance of amniotic fluid 'sludge' in patients with preterm labor and intact membranes. Ultrasound Obstet Gynecol 2005; 25:346-52. [PMID: 15789375 DOI: 10.1002/uog.1871] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
OBJECTIVE To determine the prevalence and clinical significance of amniotic fluid (AF) 'sludge' observed during transvaginal ultrasound examination of the cervix in patients with preterm labor and intact membranes, and in those with uncomplicated pregnancies. METHODS This retrospective study included patients with preterm labor and intact membranes (n = 84) and those with uncomplicated term pregnancies (n = 298). The outcome variables included the occurrence of documented microbial invasion of the amniotic cavity (MIAC), histological chorioamnionitis, examination-to-delivery interval, admission to the neonatal intensive care unit (NICU), a composite neonatal morbidity, perinatal death, and delivery within 48 h, 7 days, and < 35 weeks and < 32 weeks. Statistical analysis included Chi-square test, stepwise logistic regression analysis and survival analysis. RESULTS The prevalence of AF 'sludge' was 1% (3/298) in patients with uncomplicated term pregnancies and 22.6% (19/84) in those with preterm labor and intact membranes. Among patients with preterm labor and intact membranes: (1) cervical length < or = 15 mm was present in 58.3% (49/84) of the patients; (2) the prevalence of MIAC and histological chorioamnionitis was 12.1% (7/58) and 32.9% (25/76), respectively; (3) the rate of spontaneous preterm delivery within 48 h, 7 days, and < 32 weeks and < 35 weeks of gestation was 13.6% (8/59), 28.8% (17/59), 39.5% (17/43) and 50.8% (30/59), respectively; (4) patients with AF 'sludge' had a higher frequency of positive AF cultures [33.3% (6/18) vs. 2.5% (1/40), P = 0.003] and histological chorioamnionitis [77.8% (14/18) vs. 19% (11/58), P < 0.001] than those without AF 'sludge'; (5) a higher proportion of neonates born to patients with AF 'sludge' was admitted to the NICU [64.3% (9/14) vs. 12.9% (8/62), P < 0.01], had a composite neonatal morbidity [36.8% (7/19) vs. 13.8% (9/65), P = 0.04] and died in the perinatal period [36.8% (7/19) vs. 4.6% (3/65), P = 0.001] than those born to women without 'sludge'; (6) a higher proportion of patients with AF 'sludge' had spontaneous delivery within 48 h [42.9% (6/14) vs. 4.4% (2/45), P = 0.001], within 7 days [71.4% (10/14) vs. 15.6% (7/45), P < 0.001], < 32 weeks [75% (9/12) vs. 25.8% (8/31), P = 0.005] and < 35 weeks [92.9% (13/14) vs. 37.8% (17/45), P < 0.001] than those without AF 'sludge'; and (7) patients with AF 'sludge' had a shorter examination-to-delivery interval than those without AF 'sludge' [AF 'sludge' median, 1 (IQR, 1-5) days vs. no AF 'sludge' median, 33 (IQR, 18-58) days; P < 0.001]. CONCLUSION The presence of AF 'sludge' in patients with preterm labor and intact membranes is a risk factor for MIAC, histological chorioamnionitis and impending preterm delivery.
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Affiliation(s)
- J Espinoza
- Perinatology Research Branch, NICHD/NIH/DHHS, Detroit, MI 48201, USA
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Hassan S, Low R. 86 PARTIAL PURIFICATION AND CHARACTERIZATION OF A MITOCHONDRIAL EXONUCLEASE. J Investig Med 2005. [DOI: 10.2310/6650.2005.00005.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Abstract
Primary breast sarcoma is a rare entity occurring in 0.5% of women with breast malignancy. Like in breast carcinoma, delay in its diagnosis has important clinical and treatment implications. The subject of this report presented at our breast unit with advanced breast lesion months after she noticed a small lump in her right breast. She had no clear diagnosis despite several consultations, in-patient treatments at two facilities in the city, breast ultrasonography, breast mammography and three fine needle aspiration cytology (FNAC) examinations. The patient needed multiple blood transfusions. A final FNAC showed ductal carcinoma. Histology following wide excision confirmed high-grade primary stromal breast sarcoma. She required adjuvant combination chemotherapy. A combination of diagnostic failures and patient fault caused delay in subject's treatment. Lesion progression during delay which influenced the pattern of physical morbidity, tumour prognosis and need for adjuvant treatment. Embracing the concept of breast care in dedicated breast units may minimise such treatment delays.
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Affiliation(s)
- S Hassan
- Nairobi Womens Hospital Breast Center, Department of Human Anatomy, College of Health Sciences, University of Nairobi, Nairobi, Kenya
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Ratho RK, Mishra B, Hassan S. Indirect immunofluorescence test: role in seroepidemiology and serodiagnosis of herpes simplex viral infections. INDIAN J PATHOL MICR 2004; 47:582-5. [PMID: 16295403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023] Open
Abstract
A study was carried out to find out a) the seroprevalence of herpes simplex viral infections (HSV) in and around Chandigarh city, North India and the probable age of acquisition of infection; b) the usefulness of salivary antibody detection in seroprevalence studies; c) role of HSV immunofluorescence antibodies in the sero-diagnosis of herpes simplex encephalitis (HSE) patients. Single blood samples from 306 and paired blood and saliva samples from 48 apparently healthy individuals as well as paired blood and C.S.F. samples from 50 clinically suspected patients of HSE were included in the study proper. The subjects belonged to <6 months to > 30 years age group. Serum, saliva and C.S.F. samples were subjected to in house standardized indirect immunofluorescence test for the detection of HSV antibody. The overall seropositivity was 59.3%, which increased from 37.5% in children less than 10-years of age to 88.9% in individuals above 30 years of age (p<0.001). The maximum titer in less than 10 years children and above 10 years subjects were found to be 40 and 160 respectively. The difference in percentage positivity of HSV antibody in these groups was statistically significant (p<0.001). No difference in the seroprevalence rate was observed between different socio-economic groups and sex. Saliva in comparison to serum showed a sensitivity of 44% and specificity of 100% for the detection of HSV antibodies. Among the suspected HSE patients 4 (8%) could be serologically confirmed. This study indicated the endemicity of HSV infection in this locality. Indirect immunofluorescence test could detect intrathecal HSV antibodies in 8% of suspected HSE patients proving it to be a very useful rapid serodiagnostic tool. However, saliva testing showed limited sensitivity in HSV sero surveys.
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Affiliation(s)
- R K Ratho
- Department of Virology, Postgraduate Institute of Medical Education and Research, Chandigarh.
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