Browse publications by year: 2012

  1. Wong CS, Cheah FC
    J Pediatr Surg, 2012 Dec;47(12):2336-40.
    PMID: 23217901 DOI: 10.1016/j.jpedsurg.2012.09.029
    Cephalhematoma is normally a self-limiting condition affecting 1%-2% of live births, especially following instrumental forceps delivery. The sub-periosteal bleed is characteristically limited by the cranial sutures. Although benign in most instances, this condition may, in a small proportion of cases, be complicated by hyperbilirubinemia or scalp infection. We describe a case of cephalhematoma in a newborn infant infected with Escherichia coli resulting in an extensive deep seated scalp abscess. The infection was also systemic causing E. coli septicemia and initial assessment assumed local extension including bone and meningeal to cause skull osteomyelitis and meningitis respectively. Further investigations and multiple-modality imaging with ultrasound, CT scan and bone scintigraphy outlined the involvement as limited to the scalp, resulting in a shorter antibiotic treatment period and earlier discharge from hospital. The infant recovered well with parenteral antibiotics, saucerization of the abscess and a later skin grafting procedure.
    MeSH terms: Abscess/diagnosis*; Abscess/microbiology; Abscess/therapy; Anti-Bacterial Agents/therapeutic use; Birth Injuries/complications; Birth Injuries/diagnosis; Birth Injuries/therapy; Bone Diseases/complications; Bone Diseases/diagnosis*; Bone Diseases/therapy; Combined Modality Therapy/methods; Diagnosis, Differential; Drainage/methods; Escherichia coli/isolation & purification; Escherichia coli Infections/diagnosis; Escherichia coli Infections/microbiology*; Escherichia coli Infections/therapy; Female; Follow-Up Studies; Hematoma/complications; Hematoma/diagnosis*; Hematoma/therapy; Humans; Infant, Newborn; Scalp*; Severity of Illness Index; Tomography, X-Ray Computed/methods; Treatment Outcome; Risk Assessment; Positron-Emission Tomography/methods
  2. Vijayakumar P, Nagarajan M, Ramli A
    J Back Musculoskelet Rehabil, 2012;25(4):225-30.
    PMID: 23220803 DOI: 10.3233/BMR-2012-0337
    Osteitis pubis among soccer athletes is a disabling painful condition and it is difficult to manage without integrating a multimodal treatment approach. There is limited scientific evidence on the effectiveness of exercise in treating Osteitis pubis especially when it progress to a chronic painful condition. The purpose of this case report is to discuss the successful multimodal physiotherapeutic management for a 15-year old soccer athlete diagnosed with stage-IV Osteitis pubis. Land and water based active core muscle strengthening exercises, Proprioceptive neuromuscular facilitation techniques (PNF) and Manual Therapy are some of the essential components incorporated in multimodal intervention approach with emphasis to water based strength and endurance training exercises. The athlete was able to make progress to a successful recovery from his chronic painful condition and accomplished the clearly established clinical outcomes during each phase of rehabilitation.
    MeSH terms: Adolescent; Combined Modality Therapy; Exercise Therapy; Humans; Male; Osteitis/rehabilitation; Osteitis/therapy*; Pubic Bone*; Severity of Illness Index*; Soccer*; Treatment Outcome; Musculoskeletal Manipulations; Physical Therapy Modalities*; Muscle Strength/physiology; Athletes*
  3. Hejazi SM, Engkasan JP, Qomi MS
    J Back Musculoskelet Rehabil, 2012;25(4):231-4.
    PMID: 23220804 DOI: 10.3233/BMR-2012-0340
    BACKGROUND AND OBJECTIVE: Polymyositis (PM) is an idiopathic inflammatory myopathy manifested by proximal limb muscles weakness, elevated creatinin kinase, electromyography changes, and muscle inflammation in biopsy. We report an instance of intensive rehabilitation therapy in a patient with clinically active polymyositis.
    CASE REPORT: A 19-year-old female patient, diagnosed with 'electromyography and biopsy proven' polymyositis for 5 years, suffered from worsening limbs weakness and dysphagia. In her history, she had upper and lower limbs weakness accompanied by dysphagia which was further complicated by right bronchial aspiration 9 months ago. A four-week trial of intensive training and exercise rehabilitation, concurrently accompanied by medications was prescribed for this patient. At the end of therapy she achieved significant improvement in muscle strength, activities of daily living, and ambulation without any disease exacerbation.
    CONCLUSION: We concluded that short-term intensive training and exercise may lead to improvements in patients with PM, without causing a progress in the disease. Due to the rarity of PM and difficulty of conducting well-controlled studies to examine the risks and benefits of exercise in these patients, further research is necessary to investigate benefits of exercise training in active phase of disease.
    MeSH terms: Acute Disease; Combined Modality Therapy; Electromyography; Exercise Therapy/methods*; Female; Humans; Malaysia; Prednisolone/therapeutic use; Treatment Outcome; Polymyositis/physiopathology; Polymyositis/rehabilitation*; Polymyositis/therapy*; Muscle Weakness/physiopathology; Muscle Weakness/rehabilitation; Muscle Weakness/therapy; Young Adult
  4. Chaharborj SS, Sadat Kiai SM, Fudziah I, Majid ZA
    PMID: 23221115 DOI: 10.1255/ejms.1201
    The paper reports on some theoretical studies concerning the impulsional mode of a quadrupole mass filter (QMF) supplied with a new periodic impulsional radio frequency voltagein the form of V(ac)cos(Ωt)⌊1=kcos(1/3Ωt/1-√kcos(2Ωt⌋ with 0 ≤k < 1 (⌊.⌋ means floor function) and eventually compares it to the classical sinusoidal case, k = 0. The physical properties of the confined ions in the r and z directions are illustrated and the fractional mass resolutions m/Δm of the confined ions in the first stability regions of both potential were analyzed for hydrogen isotopes and presented.
  5. Johari J, Kianmehr A, Mustafa MR, Abubakar S, Zandi K
    Int J Mol Sci, 2012;13(12):16785-95.
    PMID: 23222683 DOI: 10.3390/ijms131216785
    Japanese encephalitis (JE), a mosquito-borne viral disease, is endemic to the entire east and southeast Asia, and some other parts of the world. Currently, there is no effective therapeutic available for JE; therefore, finding the effective antiviral agent against JEV replication is crucial. In the present study, the in vitro antiviral activity of baicalein and quercetin, two purportedly antiviral bioflavonoids, was evaluated against Japanese encephalitis virus (JEV) replication in Vero cells. Anti-JEV activities of these compounds were examined on different stages of JEV replication cycle. The effects of the compounds on virus replication were determined by foci forming unit reduction assay (FFURA) and quantitative RT-PCR. Baicalein showed potent antiviral activity with IC(50) = 14.28 µg/mL when it was introduced to the Vero cells after adsorption of JEV. Quercetin exhibited weak anti-JEV effects with IC(50) = 212.1 µg/mL when the JEV infected cells were treated with the compound after virus adsorption. However, baicalein exhibited significant effect against JEV adsorption with IC(50) = 7.27 µg/mL while quercetin did not show any anti-adsorption activity. Baicalein also exhibited direct extracellular virucidal activity on JEV with IC(50) = 3.44 µg/mL. However, results of quantitative RT-PCR experiments confirmed the findings from FFURA. This study demonstrated that baicalein should be considered as an appropriate candidate for further investigations, such as the study of molecular and cellular mechanism(s) of action and in vivo evaluation for the development of an effective antiviral compound against Japanese encephalitis virus.
    MeSH terms: Animals; Antiviral Agents/pharmacology*; Cercopithecus aethiops; Encephalitis Virus, Japanese/drug effects*; Encephalitis Virus, Japanese/physiology; Encephalitis, Japanese/prevention & control; Encephalitis, Japanese/virology; Quercetin/pharmacology*; Vero Cells; Virus Replication/drug effects*; Chemoprevention; Flavanones/pharmacology*; Virus Internalization/drug effects
  6. Ghanbari R, Ebrahimpour A, Abdul-Hamid A, Ismail A, Saari N
    Int J Mol Sci, 2012;13(12):16796-811.
    PMID: 23222684 DOI: 10.3390/ijms131216796
    Actinopyga lecanora, a type of sea cucumber commonly known as stone fish with relatively high protein content, was explored as raw material for bioactive peptides production. Six proteolytic enzymes, namely alcalase, papain, pepsin, trypsin, bromelain and flavourzyme were used to hydrolyze A. lecanora at different times and their respective degrees of hydrolysis (DH) were calculated. Subsequently, antibacterial activity of the A. lecanora hydrolysates, against some common pathogenic Gram positive bacteria (Bacillus subtilis and Staphylococcus aureus) and Gram negative bacteria (Escherichia coli, Pseudomonas aeruginosa, and Pseudomonas sp.) were evaluated. Papain hydrolysis showed the highest DH value (89.44%), followed by alcalase hydrolysis (83.35%). Bromelain hydrolysate after one and seven hours of hydrolysis exhibited the highest antibacterial activities against Pseudomonas sp., P. aeruginosa and E. coli at 51.85%, 30.07% and 30.45%, respectively compared to the other hydrolysates. Protein hydrolysate generated by papain after 8 h hydrolysis showed maximum antibacterial activity against S. aureus at 20.19%. The potent hydrolysates were further fractionated using RP-HPLC and antibacterial activity of the collected fractions from each hydrolysate were evaluated, wherein among them only three fractions from the bromelain hydrolysates exhibited inhibitory activities against Pseudomonas sp., P. aeruginosa and E. coli at 24%, 25.5% and 27.1%, respectively and one fraction of papain hydrolysate showed antibacterial activity of 33.1% against S. aureus. The evaluation of the relationship between DH and antibacterial activities of papain and bromelain hydrolysates revealed a meaningful correlation of four and six order functions.
    MeSH terms: Animals; Anti-Bacterial Agents/pharmacology*; Bacillus subtilis/drug effects; Bacillus subtilis/physiology; Escherichia coli/drug effects; Escherichia coli/physiology; Hydrolysis; Microbial Sensitivity Tests; Peptide Hydrolases/metabolism; Protein Hydrolysates/pharmacology*; Pseudomonas/drug effects; Pseudomonas/physiology; Sea Cucumbers/metabolism; Sea Cucumbers/chemistry*; Staphylococcus aureus/drug effects; Staphylococcus aureus/physiology
  7. Matori KA, Wah LC, Hashim M, Ismail I, Zaid MH
    Int J Mol Sci, 2012;13(12):16812-21.
    PMID: 23222685 DOI: 10.3390/ijms131216812
    We report on a recycling project in which α-Al(2)O(3) was produced from aluminum cans because no such work has been reported in literature. Heated aluminum cans were mixed with 8.0 M of H(2)SO(4) solution to form an Al(2)(SO(4))(3) solution. The Al(2)(SO(4))(3) salt was contained in a white semi-liquid solution with excess H(2)SO(4); some unreacted aluminum pieces were also present. The solution was filtered and mixed with ethanol in a ratio of 2:3, to form a white solid of Al(2)(SO(4))(3)·18H(2)O. The Al(2)(SO(4))(3)·18H(2)O was calcined in an electrical furnace for 3 h at temperatures of 400-1400 °C. The heating and cooling rates were 10 °C /min. XRD was used to investigate the phase changes at different temperatures and XRF was used to determine the elemental composition in the alumina produced. A series of different alumina compositions, made by repeated dehydration and desulfonation of the Al(2)(SO(4))(3)·18H(2)O, is reported. All transitional alumina phases produced at low temperatures were converted to α-Al(2)O(3) at high temperatures. The X-ray diffraction results indicated that the α-Al(2)O(3) phase was realized when the calcination temperature was at 1200 °C or higher.
    MeSH terms: Aluminum/chemistry*; Aluminum Oxide/chemistry*; Hot Temperature; Oxides/chemistry; Chemical Precipitation*; Waste Products*; X-Ray Diffraction; Phase Transition; Recycling
  8. Lee YZ, Ming-Tatt L, Lajis NH, Sulaiman MR, Israf DA, Tham CL
    Molecules, 2012 Dec 07;17(12):14555-64.
    PMID: 23222902 DOI: 10.3390/molecules171214555
    A sensitive and accurate high performance liquid chromatography with ultraviolet/visible light detection (HPLC-UV/VIS) method for the quantification of 2,6-bis-(4-hydroxy-3-methoxybenzylidene)-cyclohexanone (BHMC) in rat plasma was developed and validated. BHMC and the internal standard, harmaline, were extracted from plasma samples by a simple liquid-liquid extraction using 95% ethyl acetate and 5% methanol. Plasma concentration of BHMC and internal standard were analyzed by reversed phase chromatography using a C₁₈ column (150 × 4.6 mm I.D., particle size 5 µm) and elution with a gradient mobile phase of water and methanol at a flow rate of 1.0 mL/min. Detection of BHMC and internal standard was done at a wavelength of 380 nm. The limit of quantification was 0.02 µg/mL. The calibration curves was linear (R² > 0.999) over the concentration range of 0.02-2.5 µg/mL. Intra- and inter-day precision were less than 2% coefficient of variation. The validated method was then applied to a pharmacokinetic study in rats by intravenous administration of BHMC at a single dose of 10 mg/kg. Pharmacokinetic parameters such as half-life, maximum plasma concentration, volume of distribution, clearance and elimination rate constant for BHMC were calculated.
    MeSH terms: Animals; Calibration; Chromatography, High Pressure Liquid*; Curcumin/analogs & derivatives*; Curcumin/isolation & purification; Curcumin/pharmacokinetics; Cyclohexanones/blood; Cyclohexanones/isolation & purification*; Cyclohexanones/pharmacokinetics; Cyclohexanones/chemistry; Reference Standards*; Spectrophotometry, Ultraviolet/methods; Rats
  9. Liew NC, Chang YH, Choi G, Chu PH, Gao X, Gibbs H, et al.
    Int Angiol, 2012 Dec;31(6):501-16.
    PMID: 23222928
    Venous thromboembolism (VTE) prophylaxis is under-utilized in Asia because of the misconception that its incidence is lower in Asians as compared to the Caucasians. The available data on VTE in Asia is limited due to the lack of well-designed multicenter randomized controlled trials as well as non-standardized research designs, making data comparison difficult. Emerging data indicates that the VTE incidence is not low in Asia, and is comparable to that reported in the Western literature in some instances. There is also a trend towards increasing incidence of VTE, as demonstrated by a number of hospital-based studies in Asia. This could be attributed to lifestyle changes, ageing population, increasing awareness of VTE and wider availability of Duplex ultrasound. The risk of VTE in hospitalized patients remain the same in Asians and Caucasians, even though there may be factors that are inherent to patients in Asia that influence the slight variation in incidence. The utilization rate of VTE prophylaxis remains suboptimal in Asia. The Asian Venous Thrombosis Forum (AVTF) comprises participants from various countries such as China, Hong Kong, India, Indonesia, Korea, Malaysia, Philippines, Singapore, Taiwan, Thailand and experts from Australia and Europe. The forum evaluated the available data on VTE from the Asian region and formulated guidelines tailored to meet the needs of the region. We recommend that serious considerations are given to VTE prophylaxis especially in the at-risk group and a formal hospital policy be established to facilitate the implementation. On admission to the hospital, we recommend assessing the patients for both VTE and bleeding risk. We recommend mechanical prophylaxis for patients at increased risk of bleeding and utilizing it as an adjunctive measure in combination with pharmacological prophylaxis in patients with high risk of VTE. For patients undergoing general or gynecological surgery and with moderate risk for VTE, we recommend prophylaxis with one of the following: low dose unfractionated heparin (LDUH), low molecular weight heparin (LMWH), fondaparinux or intermittent pneumatic compression (IPC). For the same group of patients at high risk of VTE, we recommend pharmacological or combination of pharmacological and mechanical prophylaxis. For patients undergoing major orthopedic surgeries like total hip replacement, total knee replacement and proximal hip fracture surgery, we recommend using one of the following: LMWH, fondaparinux, rivaroxaban, apixaban, edoxaban, dabigatran, warfarin or aspirin with IPC. For patients admitted to the hospital with acute medical illness and has moderate risk of VTE, we recommend prophylaxis with LDUH, LMWH or Fondaparinux. For the same group at high risk of VTE, we recommend combination of pharmacological and mechanical prophylaxis.
    MeSH terms: Anticoagulants/adverse effects; Anticoagulants/therapeutic use*; Asia/epidemiology; Combined Modality Therapy; Fibrinolytic Agents/adverse effects; Fibrinolytic Agents/therapeutic use*; Hemorrhage/chemically induced; Hospitalization; Humans; Practice Patterns, Physicians'/standards; Preventive Health Services/standards*; Risk Factors; Surgical Procedures, Operative/adverse effects; Incidence; Treatment Outcome; Risk Assessment; Asian Continental Ancestry Group; Venous Thromboembolism/diagnosis; Venous Thromboembolism/ethnology; Venous Thromboembolism/prevention & control*
  10. Lee L, Liew NC, Gee T
    Int Angiol, 2012 Dec;31(6):526-33.
    PMID: 23222930
    This survey was conducted to determine the opinions and practices of peri-operative venous thromboembolism (VTE) prophylaxis among surgical and intensive care specialists in Asia.
    MeSH terms: Asia; Attitude of Health Personnel*; Critical Care*; Hospital Bed Capacity; Hospitalization; Hospitals, General; Hospitals, Teaching; Humans; Health Knowledge, Attitudes, Practice*; Practice Patterns, Physicians'*; Preventive Health Services*; Surveys and Questionnaires; Risk Factors; Surgical Procedures, Operative/adverse effects*; Hospitals, Private; Practice Guidelines as Topic; Risk Assessment; Evidence-Based Medicine; Health Care Surveys; Guideline Adherence; Venous Thromboembolism/etiology; Venous Thromboembolism/prevention & control*
  11. Sahayadhas A, Sundaraj K, Murugappan M
    Sensors (Basel), 2012 Dec 07;12(12):16937-53.
    PMID: 23223151 DOI: 10.3390/s121216937
    In recent years, driver drowsiness has been one of the major causes of road accidents and can lead to severe physical injuries, deaths and significant economic losses. Statistics indicate the need of a reliable driver drowsiness detection system which could alert the driver before a mishap happens. Researchers have attempted to determine driver drowsiness using the following measures: (1) vehicle-based measures; (2) behavioral measures and (3) physiological measures. A detailed review on these measures will provide insight on the present systems, issues associated with them and the enhancements that need to be done to make a robust system. In this paper, we review these three measures as to the sensors used and discuss the advantages and limitations of each. The various ways through which drowsiness has been experimentally manipulated is also discussed. We conclude that by designing a hybrid drowsiness detection system that combines non-intrusive physiological measures with other measures one would accurately determine the drowsiness level of a driver. A number of road accidents might then be avoided if an alert is sent to a driver that is deemed drowsy.
    MeSH terms: Accidents, Traffic; Automobile Driving*; Humans; Sleep Stages/physiology*
  12. Chin KY, Soelaiman IN, Mohamed IN, Ibrahim S, Wan Ngah WZ
    Arch Osteoporos, 2012;7:135-45.
    PMID: 23225291 DOI: 10.1007/s11657-012-0091-2
    The influences of age, physical activity, and body anthropometry on calcaneal speed of sound are different among young adults, middle-aged, and elderly men.
    MeSH terms: Adult; Aged; Aged, 80 and over; Aging/physiology*; Anthropometry*; Calcaneus/physiology*; Calcaneus/ultrasonography*; Cross-Sectional Studies; Health Status; Humans; Life Style; Malaysia/epidemiology; Male; Middle Aged; Motor Activity/physiology*; Osteoporosis/epidemiology; Osteoporosis/physiopathology*; Osteoporosis/ultrasonography*; Regression Analysis; Risk Factors; Age Distribution; Young Adult
  13. Khan SA, Omar H, Babar MG, Toh CG
    J Dent Educ, 2012 Dec;76(12):1675-83.
    PMID: 23225687
    Health economics, a special branch of science applying economic principles to the health delivery system, is a relatively young subdiscipline. The literature is scanty about teaching health economics in the medical and dental fields. Delivery methods of this topic vary from one university to another, with lectures, seminars, and independent learning reported as teaching/learning tools used for the topic. Ideally, debates should foster the development of logical reasoning and communication skills. Health economics in dentistry is taught under the community oral health module that constitutes part of an outcome-based dental curriculum in a private dental school in Kuala Lumpur, Malaysia. For this study, the students were divided into two groups: active participants (active debaters) and supporting participants (nonactive debaters). The debate style chosen for this activity was parliamentary style. Active and nonactive debaters' perceptions were evaluated before and after the activity through a structured questionnaire using a five-point rating scale addressing the topic and perceptions about debate as an educational tool. Cronbach's alpha coefficient was used as a measure of internal consistency for the questionnaire items. Among a total of eighty-two third-year dental students of two successive cohorts (thirty-eight students and forty-four students), seventy-three completed the questionnaire, yielding a response rate of 89 percent. Students' responses to the questionnaire were analyzed with the Kruskal-Wallis analysis of variance test. Results revealed that the students felt that their interest in debate, knowledge of the topic, and reinforcement of the previous knowledge had improved following participation in the debate. Within the limitations of this study, it can be concluded that debate was a useful tool in teaching health economics to dental students.
    MeSH terms: Delivery of Health Care/economics*; Economics, Medical*; Education, Dental/methods*; Humans; Malaysia; Persuasive Communication*; Cohort Studies; Program Evaluation; Focus Groups
  14. Akram A, Salam A, Bashir U, Maarof N, Meerah SM
    J Dent Educ, 2012 Dec;76(12):1691-6.
    PMID: 23225689
    This article describes a new tooth notation system designed to be implemented for educational purposes in dental schools in Malaysia and Pakistan for identification of teeth and subsequently dental communication for wellness of dental patients. Its format is constructed as a lesson plan to present an uncomplicated tooth notation system by first letter of each tooth class (I-incisor, C-canine, P-premolar, and M-molar) to describe and communicate dental information. The new system is a promising and potential educational lesson that is innovative in its contents, easily understandable, and usable in dental charting as indicated by the results of a pilot study. However, further studies are required to investigate the strength of this new system.
    MeSH terms: Curriculum*; Dental Records/standards*; Dentition*; Education, Dental/methods*; Humans; Malaysia; Terminology as Topic*; Pakistan; Tooth
  15. Abdulra'uf LB, Sirhan AY, Huat Tan G
    J Sep Sci, 2012 Dec;35(24):3540-53.
    PMID: 23225719 DOI: 10.1002/jssc.201200427
    The sample preparation step has been identified as the bottleneck of analytical methodology in chemical analysis. Therefore, there is need for the development of cost-effective, easy to operate, and environmentally friendly miniaturized sample preparation technique. The microextraction techniques combine extraction, isolation, concentration, and introduction of analytes into analytical instrument, to a single and uninterrupted step, and improve sample throughput. The use of liquid-phase microextraction techniques for the analysis of pesticide residues in fruits and vegetables are discussed with the focus on the methodologies employed by different researchers and their analytical performances. Analytes are extracted using water-immiscible solvents and are desorbed into gas chromatography, liquid chromatography, or capillary electrophoresis for identification and quantitation.
    MeSH terms: Chromatography, Gas; Chromatography, Liquid; Fruit; Pesticide Residues; Solvents; Vegetables; Water; Electrophoresis, Capillary; Liquid Phase Microextraction
  16. Hemalatha C, Norhafizah H, Shatriah I
    Clin Ophthalmol, 2012;6:1955-7.
    PMID: 23225999 DOI: 10.2147/OPTH.S37276
    Hypermature cataracts are commonly seen in developing countries. Spontaneous rupture of the anterior capsule, resulting in dislocation of the lens nucleus into the anterior chamber, presents rarely in hypermature cataracts. We describe a middle-aged woman who presented with spontaneous anterior dislocation of the nucleus in both eyes. The presence of calcification spots in the posterior capsule at the pupillary edge strongly suggested that our patient had hypermature cataracts. It is important to highlight this uncommon cause of nucleus dislocation in a patient with no previous history of ocular trauma.
    MeSH terms: Anterior Chamber; Cataract; Developing Countries; Eye Injuries; Female; Humans; Lens Nucleus, Crystalline; Middle Aged; Rupture, Spontaneous
  17. Kadirvelu A, Sadasivan S, Ng SH
    PMID: 23226028 DOI: 10.2147/DMSO.S37183
    Coping with type II diabetic patients is increasingly posing large financial burdens, sorely felt especially by growing economies. Self-management has been found to be an effective approach towards maintaining good control in diabetics. However, although efforts at implementing self-management have had initial success, there has been a lack of sustainability. This review examines the different components impinging on self-care among type II diabetic patients. These include the critical role of social support, the need for support from health care providers, the value of support from family and friends, the influence of sex and cultural factors in self-care behavior, the benefits of peer support, and the role of literacy in diabetes self-care. Despite the mounting evidence for the effectiveness of social support in diabetes care, and the various stakeholders including this in their clinical guidelines, there has only been a lukewarm response from policy-makers towards ensuring its implementation. Hence, more effort is required from health care providers in moving away from just understanding the effects of new drugs and subsequently putting their patients on these drugs, and going back to the basics of communicating with the patients, understanding their woes, and helping to motivate/empower their patients. This paper analyzes the various components of social support, their influence on diabetes self-care, and how health care providers can help in this process.
    MeSH terms: Diabetes Mellitus, Type 2*; Humans; Self Care; Social Support*
  18. Pillai D, Sheppard E, Mitchell P
    PLoS One, 2012;7(11):e49859.
    PMID: 23226227 DOI: 10.1371/journal.pone.0049859
    Are we able to infer what happened to a person from a brief sample of his/her behaviour? It has been proposed that mentalising skills can be used to retrodict as well as predict behaviour, that is, to determine what mental states of a target have already occurred. The current study aimed to develop a paradigm to explore these processes, which takes into account the intricacies of real-life situations in which reasoning about mental states, as embodied in behaviour, may be utilised. A novel task was devised which involved observing subtle and naturalistic reactions of others in order to determine the event that had previously taken place. Thirty-five participants viewed videos of real individuals reacting to the researcher behaving in one of four possible ways, and were asked to judge which of the four 'scenarios' they thought the individual was responding to. Their eye movements were recorded to establish the visual strategies used. Participants were able to deduce successfully from a small sample of behaviour which scenario had previously occurred. Surprisingly, looking at the eye region was associated with poorer identification of the scenarios, and eye movement strategy varied depending on the event experienced by the person in the video. This suggests people flexibly deploy their attention using a retrodictive mindreading process to infer events.
    MeSH terms: Adult; Attention/physiology; Eye Movements/physiology; Female; Humans; Male; Reaction Time; Social Perception*; Videotape Recording; Visual Perception/physiology*; Theory of Mind*
  19. Ruger JP, Chawarski M, Mazlan M, Ng N, Schottenfeld R
    PLoS One, 2012;7(12):e50673.
    PMID: 23226534 DOI: 10.1371/journal.pone.0050673
    AIMS: To aid public health policymaking, we studied the cost-effectiveness of buprenorphine, naltrexone, and placebo interventions for heroin dependence in Malaysia.

    DESIGN: We estimated the cost-effectiveness ratios of three treatments for heroin dependence. We used a microcosting methodology to determine fixed, variable, and societal costs of each intervention. Cost data were collected from investigators, staff, and project records on the number and type of resources used and unit costs; societal costs for participants' time were estimated using Malaysia's minimum wage. Costs were estimated from a provider and societal perspective and reported in 2004 US dollars.

    SETTING: Muar, Malaysia.

    PARTICIPANTS: 126 patients enrolled in a randomized, double-blind, placebo-controlled clinical trial in Malaysia (2003-2005) receiving counseling and buprenorphine, naltrexone, or placebo for treatment of heroin dependence.

    MEASUREMENTS: Primary outcome measures included days in treatment, maximum consecutive days of heroin abstinence, days to first heroin use, and days to heroin relapse. Secondary outcome measures included treatment retention, injection drug use, illicit opiate use, AIDS Risk Inventory total score, and drug risk and sex risk subscores.

    FINDINGS: Buprenorphine was more effective and more costly than naltrexone for all primary and most secondary outcomes. Incremental cost-effectiveness ratios were below $50 for primary outcomes, mostly below $350 for secondary outcomes. Naltrexone was dominated by placebo for all secondary outcomes at almost all endpoints. Incremental treatment costs were driven mainly by medication costs, especially the price of buprenorphine.

    CONCLUSIONS: Buprenorphine appears to be a cost-effective alternative to naltrexone that might enhance economic productivity and reduce drug use over a longer term.

    MeSH terms: Acquired Immunodeficiency Syndrome/economics; Acquired Immunodeficiency Syndrome/epidemiology; Buprenorphine/economics*; Buprenorphine/therapeutic use*; Cost-Benefit Analysis; Heroin Dependence/drug therapy*; Heroin Dependence/economics*; Humans; Malaysia/epidemiology; Naltrexone/economics*; Naltrexone/therapeutic use*; Risk Factors; Risk-Taking; Treatment Outcome
  20. Daneshjoo A, Mokhtar AH, Rahnama N, Yusof A
    PLoS One, 2012;7(12):e50979.
    PMID: 23226553 DOI: 10.1371/journal.pone.0050979
    PURPOSE: We aimed to investigate the effect of FIFA 11+ (11+) and HarmoKnee injury preventive warm-up programs on conventional strength ratio (CSR), dynamic control ratio (DCR) and fast/slow speed ratio (FSR) in young male professional soccer players. These ratios are related to the risk of injury to the knee in soccer players.

    METHODS: Thirty-six players were divided into 3 groups; FIFA 11+, HarmoKnee and control (n = 12 per group). These exercises were performed 3 times per week for 2 months (24 sessions). The CSR, DCR and FSR were measured before and after the intervention.

    RESULTS: After training, the CSR and DCR of knee muscles in both groups were found to be lower than the published normal values (0.61, 0.72, and 0.78 during 60°.s(-1), 180°.s(-1) and 300°.s(-1), respectively). The CSR (60°.s(-1)) increased by 8% and FSR in the quadriceps of the non-dominant leg by 8% in the 11+. Meanwhile, the DCR in the dominant and non-dominant legs were reduced by 40% and 30% respectively in the 11+. The CSR (60°.s(-1)) in the non-dominant leg showed significant differences between the 11+, HarmoKnee and control groups (p = 0.02). As for the DCR analysis between groups, there were significant differences in the non-dominant leg between both programs with the control group (p = 0.04). For FSR no significant changes were found between groups.

    CONCLUSIONS: It can be concluded that the 11+ improved CSR and FSR, but the HarmoKnee program did not demonstrate improvement. We suggest adding more training elements to the HarmoKnee program that aimed to enhance hamstring strength (CSR, DCR and FSR). Professional soccer players have higher predisposition of getting knee injuries because hamstring to quadriceps ratio were found to be lower than the average values. It seems that the 11+ have potentials to improve CSR and FSR as well as prevent knee injuries in soccer players.

    MeSH terms: Adolescent; Athletic Injuries/physiopathology; Athletic Injuries/prevention & control*; Biomechanical Phenomena; Humans; Knee/physiopathology*; Knee Injuries/physiopathology*; Knee Injuries/prevention & control*; Leg/physiopathology; Male; Soccer/injuries*; Exercise/physiology*; Young Adult; Athletes*
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