MyMedR

Adsorption, desorption and mobility of metsulfuron-methyl in soils of the oil palm agroecosystem in Malaysia

Ismail BS, Ooi KE

J Environ Biol, 2012 May;33(3):573-7.

Laboratory experiments were conducted to evaluate adsorption, desorption and mobility of metsulfuron-methyl in soils of the oil palm agroecosystem consisting of the Bernam, Selangor, Rengam and Bongor soil series. The lowest adsorption of metsulfuron-methyl occurred in the Bongor soil (0.366 ml g(-1)), and the highest in the Bemam soil (2.837 ml g(-1). The K(fads) (Freundlich) values of metsulfuron-methyl were 0.366, 0.560, 1.570 and 2.837 ml g(-1) in Bongor, Rengam, Selangor and Bemam soil, respectively. The highest K(fdes) value of metsulfuron-methyl, observed in the Bemam soil, was 2.563 indicating low desorption 0.280 (relatively strong retention). In contrast, the lowest K(fdes) value of 0.564 was observed for the Bongor soil, which had the lowest organic matter (1.43%) and clay content (13.2%). Soil organic matter and clay content were the main factors affecting the adsorption of metsulfuron-methyl. The results of the soil column leaching studies suggested that metsulfuron-methyl has a moderate potential for mobility in the Bernam and Bongor soil series with 19.3% and 39%, respectively for rainfall at 200 mm. However, since metsulfuron-methyl is applied at a very low rate (the maximum field application rate used was 30 g ha(-1)) and is susceptible to biodegradation, the potential forground water contamination is low.

Tissue engineering research in developing countries, the significant and differences as compared to the developed countries

Aminuddin BS, Ruszymah BH

Med J Malaysia, 2008 Jul;63 Suppl A:47-8.

PMID: 19024977

The emergence of tissue engineering and stem cell research has created a tremendous response amongst scientist in Malaysia. However, despite the enthusiastic to embark on the research we have to carefully divert the research towards our needs. This is due to our responsibility to address the mounting problem of communicable diseases here and a very limited funding. As commercialization is a key objective the combination of products towards treating or diagnosing communicable and non-communicable diseases in the developing country is another important factor. The discussion here is mainly on the evolution of tissue engineering in Malaysia and taking a model of tissue engineering in otolaryngology.

Fulltext Empty nose syndrome post radical turbinate surgery

Iqbal FR, Gendeh BS

Med J Malaysia, 2007 Oct;62(4):341-2.

PMID: 18551943 MyJurnal

Empty Nose Syndrome (ENS) is a rare and controversial sequelae from previous radical turbinate surgery. We report on a 50-year-old Chinese gentleman with long-standing nasal problems who has had radical turbinate surgery many years prior to presenting at the ENT clinic with mucoid nasal discharge and chronically blocked nose. His nasal cavities were ironically very patent and there were only minor remnants of his turbinates bilaterally. We treated him medically for several years with nasal steroids, antihistamines and leukotriene receptor antagonists and his nasal symptoms have reduced significantly.
Study site: ENT clinic, Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM), Kuala Lumpur, Malaysia

Fulltext Transoral endoscopic adenoidectomy: initial experience

Jong YH, Gendeh BS

Med J Malaysia, 2008 Mar;63(1):81-3.

PMID: 18935747 MyJurnal

Adenoidectomy is a common ENT procedure performed in hospitals in Malaysia. Adenoidectomy is indicated in patients with recurrent adenoiditis, nasal obstruction or sleep apnoea secondary to adenoid hypertrophy when conservative management has failed. Over the years, there are advances in the techniques of adenoidectomy, from the conventional transoral to endoscopic transnasal/transoral adenoidectomy. The purpose of this article is to describe the technique and emphasize the advantages of this procedure to that of the conventional technique.

Fulltext Bilateral maxillary sinus cholesterol granuloma: a rare entity

Marina MB, Gendeh BS

Med J Malaysia, 2006 Jun;61(2):226-8.

PMID: 16898317

Cholesterol granuloma in the paranasal sinuses is rare. It is more common in the mastoid antrum and temporal bone air cells in chronic middle ear disease. A case of bilateral maxillary sinus cholesterol granuloma that mimics chronic maxillary sinusitis is reported. This is the first reported case of cholesterol granuloma of the maxillary sinus in the Malaysian Literature.

Fulltext Challenges in the treatment of sinonasal undifferentiated carcinoma: a ray of hope

Norleza AN, Gendeh BS

Med J Malaysia, 2005 Aug;60(3):281-5.

PMID: 16379180 MyJurnal

We studied nine cases of SNUCs presented to the Department of Otorhinolaryngology, Hospital University Kebangsaan Malaysia from 1999 to 2003. There were 8 males and 1 female with ages ranging from 24 to 78 years (mean 46.5y). The racial distribution consisted of 5 Chinese (55.5%), 3 Malays (33.3%) and 1 Indian (11.1%). Three patients were Kadish B (33.3%) and six were Kadish C (66.6%) by classification. In our series 2 years survival was 26.3% and median survival time was 14.2 months.

Parotid abscess: a five-year review--clinical presentation, diagnosis and management

Tan VE, Goh BS

J Laryngol Otol, 2007 Sep;121(9):872-9.

PMID: 17112392

Parotid abscess is an uncommon complication of suppurative infection of the parotid gland parenchyma, commonly bacterial or viral. Ductal ectasis, primary parenchymal involvement, or infection of the intraparotid or periparotid lymph nodes can result in abscess formation. Parotid abscess may arise from ductal ectasis, primary parenchymal involvement, or infection of the subcapsular lymph nodes. The operative records for all the patients who underwent surgeries in the Department of Otorhinolaryngology, Head and Neck Surgery of the National University Hospital, Kuala Lumpur, Malaysia between January 2001 and December 2005 were retrospectively reviewed. Our case series comprises 15 patients, with 10 males and five females with a median age at presentation of 51 years old. Diabetes mellitus is a significant comorbid factor, with six patients being diabetics. Among the diabetics, two patients presented with facial nerve palsy and one of them also died due to overwhelming septicaemia. Here, we discuss the presenting symptoms, predisposing factors, investigations, microbiology and complications of this condition.

Fulltext Acquired nasal posterior choanal atresia: postradiotherapy

Marina MB, Gendeh BS

Med J Malaysia, 2006 Mar;61(1):94-6.

PMID: 16708742

Reported cases of acquired posterior choanal atresia are very few in the English literature. A case of acquired posterior choanal atresia post radiotherapy is reported which was treated by endonasal endoscopic repair using microdebrider with untoward effect.

The Inhibitory Effect of Grasshopper's Cyperus (Cyperus iria L.) on the Seedling Growth of Five Malaysian Rice Varieties

Ismail BS, Siddique MA

Trop Life Sci Res, 2011 May;22(1):81-9.

PMID: 24575211

Experiments were carried out in the laboratory and greenhouse to determine the growth inhibitory effects of Grassohopper's cyperus (Cyperus iria L.) on the seedlings of 5 Malaysian rice varieties namely MR211, MRQ74, MR220, MR84 and MR232. Three concentrations of the aqueous extract of the weed (12.5, 25.0 and 50.0 g/l) and weed debris (5, 10 and 20 g dry debris/1000 g soil) were used to test the allelopathic effect of C. iria on the growth of the rice plants. The weed leaf, stem and root extracts reduced the growth of the rice seedlings and showed selective activity in the varieties. The C. iria leaf and stem extracts showed comparatively higher growth inhibitory effects than those from the root. The weed extract caused more reduction in the root length of the rice plant compared to the shoot length. Among the rice varieties tested, MR232 was found to be more susceptible to the weed inhibitory effect. The leaf extract of C. iria at full strength caused root and shoot reduction of MR232 by 88.1% and 73.1% respectively (compared to the control). In most cases the fresh weight of the rice seedlings were more affected than the plant height. Weed debris caused significant reduction of leaf chlorophyll content in all the rice varieties tested with the exception of MR211. The chlorophyll content of MR232 was greatly affected by the weed debris which caused reduction of 36.4% compared to the control. The inhibitory effects of weed extracts and debris on rice growth parameters were found to be concentration dependent.

Fulltext Hashimoto's thyroiditis: a rare cause for rhinosinusitis

Jeevanan J, Gendeh BS, Satpal S

Med J Malaysia, 2004 Aug;59(3):428-30.

PMID: 15727394

Rhinosinusitis is a common disorder with various etiological factors. In our clinical practice allergy seems to be a predominant cause followed by other less common causes like infection, drugs and aspirin hypersensitivity. We present a case of chronic rhinosinusitis secondary to hypothyroidism. Although hormonal causes like hypothyroidism have been proven to cause nasal congestion and rhinosinusitis, this is the first reported case of chronic rhinosinusitis in Hashimoto's thyroiditis in our center. This is a diagnosis of exclusion for chronic rhinosinusitis not responding to optimal medical therapy.

Bioaccumulation of heavy metals in vegetables from selected agricultural areas

Ismail BS, Farihah K, Khairiah J

Bull Environ Contam Toxicol, 2005 Feb;74(2):320-7.

PMID: 15841973

Dissipation of chlorothalonil, chlorpyrifos, and profenofos in a Malaysian agricultural soil: a comparison between the field experiment and simulation by the PERSIST model

Ismail BS, Ngan CK

J Environ Sci Health B, 2005;40(2):341-53.

PMID: 15825685

A comparison of dissipation of chlorothalonil, chlorpyrifos, and profenofos in a Malaysian agricultural soil between the field experiment and simulation by the PERSIST model was studied. A plot of sweet pea (Pisum sativum) from a farm in the Cameron Highlands was selected for the field experiment. The plot was treated with chlorothalonil, chlorpyrifos, and profenofos. Core soil collection was conducted according to the sampling schedule. Residues of the three pesticides were analyzed in the laboratory. Simulations of the three pesticides' persistency were also conducted using a computer-run software PERSIST. Generally, predicted data obtained using PERSIST were found to be high for the three pesticides except for one field measurement of chlorpyrifos. The predicted data for profenofos, which is the most mobile of the three pesticides tested, was not well matched with the observed data compared to chlorothalonil and chlorpyrifos.

Fulltext Epidemiology of psoriasis in Malaysia: a hospital based study

Sinniah B, Saraswathy Devi S, Prashant BS

Med J Malaysia, 2010 Jun;65(2):112-4.

PMID: 23756793 MyJurnal

BACKGROUND: Psoriasis is a complex chronic inflammatory skin disease with a worldwide distribution.
OBJECTIVE: To determine the prevalence of psoriasis according to age, gender and ethnicity among outpatients attending the dermatology clinic in Hospital Tengku Ampuan Rahimah, Klang Malaysia.
STUDY POPULATION: All outpatients attending the specialist clinic of the dermatology department in Hospital Tengku Ampuan Rahimah, Klang, Malaysia from January 2003 to December 2005.
METHODS: This is a retrospective descriptive study of all outpatients who attended the specialist clinic from January 2003 to December 2005 and diagnosed for psoriasis. The study population consisted of patients of all ages, both gender and different ethnic groups (Malay, Chinese, Indians and foreign workers) living in the Klang Valley and the surrounding areas.
RESULTS: A total of 5607 patients were examined during a period of three years and 9.5% were found to be suffering with psoriasis. It was more common in males (11.6%) than in females (7.2%). Patients within the 40-60 year age group had the highest (17.2%) rate and were lower in the younger age group including those aged over 60 years (8.1%). With regards to ethnicity, it was more common in Indians followed by Malays, Chinese and migrant foreign workers respectively. The study indicates that psoriasis is common in Malaysia and its distribution varies with age, ethnicity and gender.

Study site: dermatology department in Hospital Tengku Ampuan Rahimah,

Fulltext The association of concha bullosa and deviated nasal septum with chronic rhinosinusitis in functional endoscopic sinus surgery patients

Vincent TE, Gendeh BS

Med J Malaysia, 2010 Jun;65(2):108-11.

PMID: 23756792 MyJurnal

Chronic rhinosinusitis (CRS) remains a prevalent disease and a major cause of morbidity for many patients and functional endoscopic sinus surgery (FESS) is the gold standard for the treatment of CRS. Many factors contribute to the development of CRS, among others nasal anatomic variation. The authors aim to study the association of concha bullosa and deviated nasal septum with CRS patients requiring FESS amongst the diversified multiethnic Malaysian race. The records of 137 patients with CRS who had undergone FESS between March 2002 and October 2006 at the Department of Otorhinolaryngology, Head and Neck Surgery of the Hospital Universiti Kebangsaan Malaysia (HUKM), Kuala Lumpur were retrospectively reviewed. The data revealed that deviated nasal septum (DNS) and concha bullosa (CB) were the two commonest anatomical variations in the nasal cavity. In this study, CB was statistically significant amongst the females and in the Chinese and Indian ethnic groups. DNS is also prevalent but has no significant statistical relationship with sex, age, ethnic group in the local context. CB and DNS are coincidental variations and this study disprove that DNS is associated with CB in its development and pathogenesis of CRS. The mere presence of both these conditions also does not predispose the patients to CRS in the adjacent paranasal sinuses.

Fulltext Open septorhinoplasty: operative technique and grafts

Gendeh BS, Tan VE

Med J Malaysia, 2007 Mar;62(1):13-8.

PMID: 17682563 MyJurnal

In this case series, the senior author details his series of patients who had undergone open septorhinoplasty for functional and/or aesthetic purposes in the Otorhinolaryngology Department at the Hospital Universiti Kebangsaan Malaysia (HUKM), Kuala Lumpur between January 2003 and September 2005. There were 23 patients, consisting of 15 men and 8 women from different Malaysian ethnic groups. Discussion on open septorhinoplasty with regards to operative technique, grafts and implants is presented from an otorhinolaryngologist's point of view.

Fulltext Endoscopic repair of spontaneous cerebro-spinal fluid rhinorrhoea: a report of 3 cases

Gendeh BS, Wormald PJ, Forer M, Goh BS, Misiran K

Med J Malaysia, 2002 Dec;57(4):503-8.

PMID: 12733180

Three cases of spontaneous Cerebrospinal Fluid (CSF) rhinorrhea were managed at the National University Hospital, Kuala Lumpur. Case 1 had bilateral leak secondary to empty sella syndrome and the rest two cases had unilateral leak. Four transnasal endoscopic approaches were performed on these three cases since March 1999. The role of intrathecal Sodium Fluorescein is highlighted in localising the CSF fistula. Case 3 required postoperative lumbar drain as an adjunct. No recurrent leak was noted on post operative follow up in Case 2 and 3 ranging from nine to thirty two months. A recurrent left leak at six months was noted in Case 1 which could likely be due to her sudden bout of cough attacks and patient refused further surgical intervention.

Age and gender effect on the growth of bone marrow stromal cells in vitro

Shamsul BS, Aminuddin BS, Ng MH, Ruszymah BH

Med J Malaysia, 2004 May;59 Suppl B:196-7.

PMID: 15468885

Bone marrow harvested by aspiration contains connective tissue progenitor cells which can be selectively isolated and induced to express bone phenotype in vitro. The osteoblastic progenitor can be estimated by counting the number of cells attach using the haemacytometer. This study was undertaken to test the hypothesis that human aging is associated with a significant change on the number of osteoblastic progenitors in the bone marrow. Bone marrow aspirates were harvested from 38 patients, 14 men (age 11-70) and 24 women (age 10-70) and cultured in F12: DMEM (1:1). In total 15 bone marrow samples have been isolated from patients above 40 years old (men/women) of age. Fourteen (93.3%) of this samples failed to proliferate. Only one (6.7%) bone marrow sample from a male patient, aged 59 years old was successfully cultured. Seventy percent (16/23) of the samples from patient below than 40 years old were successfully cultured. However, our observation on the survival rate for cells of different gender from patient below 40 years old does not indicate any significant difference. From this study, we conclude that the growth of bone marrow stromal cells possibly for bone engineering is better from bone marrow aspirates of younger patient.

Runoff of the herbicides triclopyr and glufosinate ammonium from oil palm plantation soil

Tayeb MA, Ismail BS, Khairiatul-Mardiana J

Environ Monit Assess, 2017 Oct 11;189(11):551.

PMID: 29022154 DOI: 10.1007/s10661-017-6236-4

This study focused on the residue detection of the herbicides triclopyr and glufosinate ammonium in the runoff losses from the Tasik Chini oil palm plantation area and the Tasik Chini Lake under natural rainfall conditions in the Malaysian tropical environment. Triclopyr and glufosinate ammonium are post-emergence herbicides. Both herbicides were foliar-sprayed on 0.5 ha of oil palm plantation plots, which were individualized by an uneven slope of 10-15%. Samples were collected at 1, 3, 7, 15, 30, 45, 60, 90, and 120 days after treatment. The concentrations of both herbicides quickly diminished from those in the analyzed sample by the time of collection. The highest residue levels found in the field surface leachate were 0.031 (single dosage, triclopyr), 0.041 (single dosage, glufosinate ammonium), 0.017 (double dosage, triclopyr), and 0.037 μg/kg (double dosage, glufosinate ammonium). The chromatographic peaks were observed at "0" day treatment (2 h after herbicide application). From the applied active ingredients, the triclopyr and glufosinate losses were 0.025 and 0.055%, respectively. The experimental results showed that both herbicides are less potent than other herbicides in polluting water systems because of their short persistence and strong adsorption onto soil clay particles.

Fulltext Pregnancy outcomes in women with non-transfusion dependent thalassaemia (NTDT): A haematology centre experience

Lee BS, Sathar J, Sivapatham L, Lee LI

Malays J Pathol, 2018 Aug;40(2):149-152.

PMID: 30173232 MyJurnal

INTRODUCTION: Non-transfusion dependent thalassaemia (NTDT) is a term used for thalassaemia patients who do not require lifelong regular transfusions for survival. Pregnancy in these women, whether spontaneous or through assisted reproductive technology, represents a challenge for the physician.
MATERIALS AND METHODS: The maternal and foetal outcomes of patients with NTDT followed up in a tertiary haematology centre over 6 months period were studied. A total of 36 pregnancies in 26 pregnant women with NTDT were analysed.
RESULTS: Among these women, all of the pregnancies resulted in successful delivery of singleton live-born neonates. There were four clinically distinct forms of NTDT among these women which include Hb E/β-thalassemia (mild and moderate forms), HbH disease, HbH-Constant Spring, and homozygous δβ-thalassemia. No blood transfusion was needed in 15 of the 36 pregnancies (41.6%). The lowest mean Hb level in which no blood transfusion was given was 8.21 g/dL. The mean of packed-cell units received during pregnancy was 6.95 units per pregnancy. There was no worsening of serum ferritin observed during pregnancy with mean serum ferritin pre- and post-pregnancy of 409.35 ug/L and 418.18 ug/L respectively. The mean gestational age at delivery was 38.6 weeks with no preterm delivery reported. The mean foetal birth weight was 2729 grams. There was no intrauterine growth restriction (IUGR) or congenital malformation. There was a case of small for gestational age (SGA) and a case of oligohydramnios.
CONCLUSION: This study showed that pregnancy was possible, safe and has a favourable outcome in patients with NTDT with multidisciplinary care.

Fulltext Iontophoresis and topical application of 8% arginine-calcium carbonate to treat dentinal hypersensitivity

Kumar S, Thomas BS, Gupta K, Guddattu V, Alexander M

Niger J Clin Pract, 2018 Aug;21(8):1029-1033.

PMID: 30074006 DOI: 10.4103/njcp.njcp_341_17

Aim and objectives: The aim and the objectives were. (1) to assess the efficacy of a desensitizing toothpaste containing 8.0% arginine-calcium carbonate (Colgate® Sensitive Pro-Relief™), (2) to assess the efficacy of a desensitizing toothpaste containing 8.0% arginine-calcium carbonate (Colgate® Sensitive Pro-Relief™) used in combination with iontophoresis, and (3) to compare the effectiveness of the above methods.

Subjects and Methods: Two groups of 40 patients each having dentinal hypersensitivity were treated using 8% proarginine and iontophoresis. The patients were recalled after 1, 2, and 4 weeks. The scores were tabulated and the results were analyzed using SPSS statistical software.

Results: Visual analog scale between the two groups showed a significant difference from the 1st week till the 4th week. ANOVA values showed the reduction in the dentinal hypersensitivity in Group 2 using the iontophoresis along with the 8.0% arginine-calcium carbonate toothpaste. The Cochran-Mantel-Haenszel correlation test of the Schiff's dentinal hypersensitivity cross-tabulation showed P < 0.001 which was statistically significant reduction after the 4th week following the application of 8.0% arginine-calcium carbonate along with iontophoresis.

Conclusion: Iontophoresis, when used along with Colgate® Sensitive Pro-Relief™ toothpaste, can provide additional benefit as this provides a better sealing effect.

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