MyMedR

Displaying publications 61 - 68 of 68 in total

Abstract:

Sort:

Fulltext Tetra-μ-acetato-κO:O'-bis-{[4-methyl-N-(4-methyl-phen-yl)pyridin-2-amine-κN]copper(II)}

Fairuz ZA, Aiyub Z, Abdullah Z, Ng SW, Tiekink ER

Acta Crystallogr Sect E Struct Rep Online, 2010;66(Pt 9):m1077-8.
PMID: 21588497 DOI: 10.1107/S1600536810031168

The title complex, [Cu(2)(CH(3)COO)(4)(C(13)H(14)N(2))(2)], features a binuclear mol-ecule, which lies about a crystallographic centre of inversion; the four acetate ions each bridge a pair of Cu(II) atoms. The coordination of the metal atom is distorted octa-hedral within a donor set defined by four O atoms, the heterocyclic N atom and the second Cu atom. The pyridine ring is twisted with respect to the tolyl ring and forms a dihedral angle of 35.34 (9)°. A bifurcated N-H⋯(O,O) hydrogen bond is present, linking the amine group to two carboxyl-ate O atoms derived from different acetate ions. In the crystal, C-H⋯π inter-actions link mol-ecules into a supra-molecular array in the bc plane.
Fulltext Tetra-μ-acetato-κO:O'-bis-{[N-(4-chloro-phen-yl)-4-methyl-pyridin-2-amine-κN]copper(II)}

Fairuz ZA, Aiyub Z, Abdullah Z, Ng SW, Tiekink ER

Acta Crystallogr Sect E Struct Rep Online, 2010;66(Pt 9):m1049-50.
PMID: 21588477 DOI: 10.1107/S1600536810030187

In the crystal structure of the title complex, [Cu(2)(CH(3)COO)(4)(C(12)H(11)ClN(2))(2)], the complete binuclear mol-ecule is generated by a crystallographic centre of inversion; the four acetate groups each bridge a pair of Cu(II) atoms. The coordination of the metal atom is distorted octa-hedral within a donor set defined by four O atoms, the heterocyclic N atom and the second Cu atom. The pyridine ring is twisted with respect to the benzene ring, forming a dihedral angle of 33.9 (2)°. An intra-molecular N-H⋯O hydrogen bond is present between the amino group and a carboxyl O atom. Inter-molecular inter-actions of the C-H⋯π type link mol-ecules in the crystal structure.
Fulltext Thoracic Endovascular Aortic Repair (TEVAR) in traumatic high-velocity blunt injury to thoracic aorta

Nor Elina NS, Naresh G, Hanif H, Zainal AA

Med J Malaysia, 2013 Jun;68(3):239-44.
PMID: 23749014 MyJurnal
Total percutaneous endovascular aneurysm repair (pEVAR): the initial experience in Hospital Kuala Lumpur

Leong BDK, Govindarajanthran N, Hafizan TM, Tan KL, Hanif H, Zainal AA

Med J Malaysia, 2017 04;72(2):91-93.
PMID: 28473670 MyJurnal

INTRODUCTION: There has been a paradigm shift in the treatment of AAA with the advent of endovascular aneurysm repair (EVAR). Rapid progress and evolution of endovascular technology has brought forth smaller profile devices and closure devices. Total percutaneous endovascular aneurysm repair (pEVAR) involves the usage of suture-mediated closure devices (SMCDs) at vascular access sites to avoid a traditional surgical cutdown.
MATERIALS AND METHODS: We retrospectively reviewed our experience of pEVAR between April 2013 and July 2014. Primary success of the procedure was defined as closure of a common femoral artery (CFA) arteriotomy without the need for any secondary surgical or endovascular procedure within 30 days.
RESULTS: In total there were 10 pEVAR cases performed in the study period, one case in Queen Elizabeth Hospital during visiting vascular service. Patients have a mean age of 73.4 year old (66-77 year old) The mean abdominal aortic size was 7.2 cm (5.6-10.0cm). Mean femoral artery diameter was 9.0 mm on the right and 8.9 mm on the left. Mean duration of surgery was 119 minutes (98- 153 minutes). 50% of patients were discharged at post-operative day one, 30%- day two and 20%- day three. Primary success was achieved in 9 patients (90%) or in 19 CFA closures (95%). No major complication was reported.
DISCUSSION: We believe that with proper selection of patients undergoing EVAR, pEVAR offers a better option of vascular access with shorter operative time, less post- operative pain, shorter hospital stay and minimises the potential complications of a conventional femoral cutdown.
Transgenic oil palm: production and projection

Parveez GK, Masri MM, Zainal A, Majid NA, Yunus AM, Fadilah HH, et al.

Biochem Soc Trans, 2000 Dec;28(6):969-72.
PMID: 11171275

Oil palm is an important economic crop for Malaysia. Genetic engineering could be applied to produce transgenic oil palms with high value-added fatty acids and novel products to ensure the sustainability of the palm oil industry. Establishment of a reliable transformation and regeneration system is essential for genetic engineering. Biolistic was initially chosen as the method for oil palm transformation as it has been the most successful method for monocotyledons to date. Optimization of physical and biological parameters, including testing of promoters and selective agents, was carried out as a prerequisite for stable transformation. This has resulted in the successful transfer of reporter genes into oil palm and the regeneration of transgenic oil palm, thus making it possible to improve the oil palm through genetic engineering. Besides application of the Biolistics method, studies on transformation mediated by Agrobacterium and utilization of the green fluorescent protein gene as a selectable marker gene have been initiated. Upon the development of a reliable transformation system, a number of useful targets are being projected for oil palm improvement. Among these targets are high-oleate and high-stearate oils, and the production of industrial feedstock such as biodegradable plastics. The efforts in oil palm genetic engineering are thus not targeted as commodity palm oil. Due to the long life cycle of the palm and the time taken to regenerate plants in tissue culture, it is envisaged that commercial planting of transgenic palms will not occur any earlier than the year 2020.
Transplantation of human dental pulp stem cells: enhance bone consolidation in mandibular distraction osteogenesis

Alkaisi A, Ismail AR, Mutum SS, Ahmad ZA, Masudi S, Abd Razak NH

J Oral Maxillofac Surg, 2013 Oct;71(10):1758.e1-13.
PMID: 24040948 DOI: 10.1016/j.joms.2013.05.016

The main aim of the present study was to evaluate the capacity of stem cells from human exfoliated deciduous teeth (SHED) to enhance mandibular distraction osteogenesis (DO) in rabbits.
Fulltext Tuberculous aortic pseudoaneurysm treated with in situ silver-impregnated vascular inlay graft

Hussein H, Azizi ZA

Asian J Surg, 2008 Apr;31(2):87-9.
PMID: 18490221 DOI: 10.1016/S1015-9584(08)60064-0

A 62-year-old man presented with continuous, persistent backache shortly after completion of antituberculosis medication for tuberculosis (TB) of the spine. Computed tomography scan revealed a pseudoaneurysm involving the infrarenal aorta. He was restarted on anti-TB medication and underwent repair of the pseudoaneurysm with an in situ silver-coated bifurcated Dacron graft. His postoperative recovery was uneventful and he remained well up to 12 months of follow up. To our knowledge, this is the first case in the literature where an in situ silver-impregnated vascular graft has been successfully used in treating a tuberculous pseudoaneurysm.
Fulltext Using a patient decision aid for insulin initiation in patients with type 2 diabetes: a qualitative analysis of doctor-patient conversations in primary care consultations in Malaysia

Syed A, Mohd Don Z, Ng CJ, Lee YK, Khoo EM, Lee PY, et al.

BMJ Open, 2017 05 09;7(5):e014260.
PMID: 28490553 DOI: 10.1136/bmjopen-2016-014260

OBJECTIVE: To investigate whether the use of apatient decision aid (PDA) for insulin initiation fulfils its purpose of facilitating patient-centred decision-making through identifying how doctors and patients interact when using the PDA during primary care consultations.
DESIGN: Conversation analysis of seven single cases of audio-recorded/video-recorded consultations between doctors and patients with type 2 diabetes, using a PDA on starting insulin.
SETTING: Primary care in three healthcare settings: (1) one private clinic; (2) two public community clinics and (3) one primary care clinic in a public university hospital, in Negeri Sembilan and the Klang Valley in Malaysia.
PARTICIPANTS: Clinicians and seven patients with type 2 diabetes to whom insulin had been recommended. Purposive sampling was used to select a sample high in variance across healthcare settings, participant demographics and perspectives on insulin.
PRIMARY OUTCOME MEASURES: Interaction between doctors and patients in a clinical consultation involving the use of a PDA about starting insulin.
RESULTS: Doctors brought the PDA into the conversation mainly by asking information-focused 'yes/no' questions, and used the PDA for information exchange only if patients said they had not read it. While their contributions were limited by doctors' questions, some patients disclosed issues or concerns. Although doctors' PDA-related questions acted as a presequence to deliberation on starting insulin, their interactional practices raised questions on whether patients were informed and their preferences prioritised.
CONCLUSIONS: Interactional practices can hinder effective PDA implementation, with habits from ordinary conversation potentially influencing doctors' practices and complicating their implementation of patient-centred decision-making. Effective interaction should therefore be emphasised in the design and delivery of PDAs and in training clinicians to use them.