Displaying publications 41 - 60 of 792 in total

  1. Abiola, Abdulrahman Surajudeen, Lekhraj Rampal, Norlijah Othman, Faisal Ibrahim, Hayati Kadir@Shahar, Anuradha P. Radhakrishnan
    Adherence to antiretroviral therapy (ART) prevents disease progression, and the emergence of resistant mutations. It also reduces morbidity, and the necessity for more frequent, complicated regimens which are also relatively more expensive. Minimum adherence levels of 95% are required for treatment success. Poor adherence to treatment remains a stumbling block to the success of treatment programs. This generates major concerns about possible resistance of the human immunodeficiency virus (HIV) to the currently available ARVs. This paper aims to describe baseline results from a cohort of 242 Malaysian patients receiving ART within the context of an intervention aimed to improve adherence and treatment outcomes among patients initiating ART. A single-blinded Randomized Controlled Clinical Trial was conducted between January and December, 2014 in Hospital Sungai Buloh. Data on socio-demographic factors, clinical symptoms and adherence behavior of respondents was collected using modified, pre-validated Adult AIDS Clinical Trials Group (AACTG) adherence questionnaires. Baseline CD4 count, viral load, weight, full blood count, blood pressure, Liver function and renal profile tests were also conducted and recorded. Data was analyzed using SPSS version 22 and R software. Patients consisted of 215 (89%) males and 27 (11%) females. 117 (48%) were Malays, 98 (40%) were Chinese, 22 (9%) were Indians while 5 (2%) were of other ethnic minorities. The mean age for the intervention group was 32.1 ± 8.7 years while the mean age for the control group was 34.7 ± 9.5 years. Mean baseline adherence was 80.1 ± 19.6 and 85.1 ± 15.8 for the intervention and control groups respectively. Overall mean baseline CD4 count of patients was 222.97 ± 143.7 cells/mm³ while overall mean viral load was 255237.85 ± 470618.9. Patients had a mean weight of 61.55 ± 11.0 kg and 61.47 ± 12.3 kg in the intervention and control groups, respectively. Males account for about 90% of those initiating ART in the HIV clinic, at a relatively low CD4 count, high viral load and sub-optimal medication adherence levels at baseline.
  2. Goh, Iris Wen Li, Kien, Yip Wai, Fong, Seow Heng
    In this study, tumorspheres were generated from TW06 nasopharyngeal carcinoma cell line and examined their expression of putative cancer stem-like cell surface markers and drug sensitivity. The rate of tumorsphere expansion from dissociated late passage TW06 tumorspheres (≥ passage 15) was higher than that from parental cells and dissociated 10-day-old (passage 0) tumorspheres. The expression of CD24 surface marker was lost in the generation of tumorspheres and the loss was reversible after differentiating the tumorspheres in monolayer culture conditions. Drug sensitivity assay showed that late passage tumorspheres were resistant to docetaxel and oxaliplatin treatment. Our data suggest that serially passaged tumorspheres possess the characteristics of CSCs that render them a suitable preclinical in vitro model for evaluating anticancer drug efficacy and elucidating the underlying mechanisms of drug resistance.
  3. Borojerdi, Mohadese Hashem, Maqbool, Maryam, Zuraidah Yusoff, Vidyadaran, Sharmili, Hwa, Ling King, George, Elizabeth, et al.
    Introduction: During the last three decades hematopoietic stem cell transplantation (HSCT) has become a well-established treatment for many hematologic malignancies. The most important limitation for HSC transplantation is the low number of hematopoietic stem cells (HSC) that can lead to delayed engraftment or graft failures. Numerous attempts have been made to improve in vitro HSC expansion via optimization of various methods such as isolation techniques, supplementing with growth factors, utilizing stromal cells as feeder layer and other culture conditions. Objective: This project is aimed to decipher the efficiency of an isolation technique and retrieval of culture expanded HSC from feeder layer using two different harvesting methods. Materials and Methods: Hematopoietic stem cells from human umbilical cord blood were isolated via MACS mediated CD34+ double sorting. Then, the cells were cultured onto MSC feeder layer for 3 and 5 days. Culture expanded cells were harvested using two different harvesting method namely cell aspiration and trypsinization methods. Hematopoietic stem cell expansion index were calculated based on harvesting methods for each time point. Results: The numbers of HSC isolated from human umbilical cord blood were 1.64 x 106 and 1.20 x106 cells at single and double sortings respectively. Although the number of sorted cells diminished at the second sorting yet the yield of CD34+ purity has increased from 43.73% at single sorting to 81.40% at double sorting. Employing the trypsinization method, the HSC harvested from feeder layer showed a significant increase in expansion index (EI) as compared to the cell aspiration harvesting method (p≤ 0.05). However, the purity of CD34+ HSC was found higher when the cells were harvested using aspiration method (82.43%) as compared to the trypsinization method (74.13%). Conclusion: A pure population of CD34+ HSC can be retrieved when the cells were double sorted using MACS and expanded in culture after being harvested using cell aspiration method.
  4. Ahmad Khaldun Ismai, Suzaily Wahab, Rosdinom Razali, Mohammad Arif Kamarudin, Noorlaili Mohd Tohit, Rajen Durai, Ruth Packiavathy, et al.
    Simulated/ standardized patients (SPs) have become one of the significant components in today’s medical education and students’ assessment. Some differences exist in the training method of SPs for psychiatry examinations compared to other medical disciplines. This brief report highlights the challenges encountered in the training process and methods to overcome those challenges. A wellstructured, intensive training remains as one of the most important factors in ensuring standardization of SPs for psychiatric examinations.
  5. Thambiah, Subashini Chellapah, Zalinah Ahmad, Zarida Hambali, Malina Osman, Munia Mohd Zain, Fuziah Md Zain, et al.
    A clinical descriptive study was done to determine the sociodemographic, laboratory and clinical characteristics of patients with congenital adrenal hyperplasia (CAH) referred to Hospital Putrajaya, a tertiary endocrine centre in Malaysia. Electronic laboratory data of 51 CAH patients were obtained. The demographics and clinical details of the study population were acquired from a questionnaire completed by parents of participants. There were 25 males (49%) and 26 females (51%), of which, 58.8% were Malays. Median age of participants was 4 years whilst median age at diagnosis of CAH was two years. Parental consanguinity was documented in three patients (5.9%). Patients originated from Johor (19.6%), Selangor (19.6%), Negeri Sembilan (17.6%) and Kedah (13.7%). Majority of patients were diagnosed after one week of life (80.4%) although more females were diagnosed under the age of one week compared to males (p=0.041). Most females presented with ambiguous genitalia (42.3%) [p=0.001] whereas 72% of males presented with salt wasting (p=0.003). No significant associations between race and all other variables, though interestingly three Malay patients presented with ambiguous genitalia and hypertension. Equal gender distribution noted as expected in an autosomal recessive condition, although not in keeping with other Asian countries. Early diagnosis in females attributed to obvious genital ambiguity at birth. Varied clinical presentation, although in minority, necessitates genetic studies for prompt diagnosis and treatment. Considering that majority of patients presented with salt wasting and the age at diagnosis was delayed, the introduction of a neonatal screening programme is essential in Malaysia.
  6. Irfan Mohamad, Mohd Syafwan Mohd Soffian, Amran Mohamad
    Acute epiglottitis though relatively common in pediatric patients as compared to adults, present with almost similar clinical presentations. They include voice change, difficulty or painful swallowing and sometimes with upper airway obstruction. Physical finding of swollen epiglottis is difficult to be obtained owing to the danger of introducing laryngeal mirror into the oropharynx as to avoid contact spasm. The diagnostic thumb sign appearance on lateral neck radiograph is considered pathognomonic of epiglottitis. We report a case of an adult with clinical features and radiological finding of an acute epiglottitis, which did not resolve with antibiotic treatment. Subsequent imaging confirmed the presence of an abscess in the epiglottic mucosa.
  7. Farid Yusof, Suzaily Wahab
    Data from the Malaysian National Drugs Agency December 2013 Report, showed that among 7864 drug users, 632 were abusing Amphetamine Type Stimulant. Rates of admission due to Methamphetamine abuse in pregnancy are higher compared with men and non- pregnant lady in the United States.1 A number of issues may complicate the management of pregnant women who abused methamphetamine such as the low motivation for them to come forward voluntarily for treatment, the high rates of fetal and maternal complications due to methamphetamine abuse,2,3 and the inavailabiliy of effective treatment for methamphetamine dependence.
  8. Intan Nureslyna Samsudin, Thambiah, Subashini C., Wan Mohamad Asyraf Wan Mohammed Ayub, Cheng, Ng Wan, Zanariah Hussein, Nurain Mohd Noor, et al.
    The glycosylated haemoglobin (HbA1c) test is the most widely accepted laboratory test for evaluating long term glycaemic control. Patient’s understanding of HbA1c can lead to better glycaemic control. This study is aimed to determine the awareness and level of understanding of HbA1c among type 2 DM patients and its association with glycaemic control. A cross-sectional descriptive study among Type 2 DM patients undergoing routine follow up in an endocrine clinic of a tertiary centre in Malaysia. Patients were invited to answer a validated questionnaire which assessed their awareness and understanding of HbA1c. Their last HbA1c results were retrieved from the laboratory information system. A total of 92 participants were recruited. Fifty-six (60.9%) were aware of the term HbA1c. Fifty percent were categorised as having good HbA1c understanding, with age, monthly income and level of education being the factors associated with understanding. No significant association was noted between HbA1c understanding and glycaemic control, although more patients with good HbA1c understanding had achieved the target glycaemic control compared to those with poor understanding. The level of HbA1c awareness and understanding was acceptable. Factors associated with understanding were age, income and level of education. Continuing efforts however, must be made to improve patients understanding of their disease and clinical disease biomarkers.
  9. Ayiesah Ramli, Teh, Zi Ying, Khatijahbe Mohd Ali, Roslina Abdul Manap
    Chronic Respiratory Questionnaire (CRQ) is one of the disease-specific questionnaires to assess health related quality of life (HRQoL) among chronic obstructive pulmonary disease (COPD) patients. Objectives: This study investigate the validity and reliability of Malay version CRQ among COPD patients. Methods: The CRQ was administered twice to 46 patients with COPD (mean FEV1 44% predicted, FEV1/ IVC 37% predicted) from Medical Center of University Kebangsaan Malaysia (PPUKM).Test-retest reliability was assessed using intra-class correlation coefficients (ICC). Internal consistency was determined using Crohnbach’s alpha coefficients (α = 0.7). Spearman’s correlation coefficient was done among the scores of CRQ, St George Respiratory Questionnaire (SGRQ) and six- minute walking test (6MWT) to examine the concurrent validity of the CRQ (p 0.70) was observed for 3 domains of CRQ with exception of dyspnoea domain (α = -0.631). Test retest reliability demonstrated strong correlation (ICC >0.80). Concurrent validity of CRQ, showed significant correlations observed between domain of SGRQ’s symptom, impact and total scores of SGRQ with CRQ’s dyspnoea and emotional function (-0.3< r < -0.4; p
  10. Nur Hartini Mohd Taib, Wan Ahmad Kamil Wan Abdullah, Ibrahim Lutfi Shuaib
    Diffusion Tensor Imaging (DTI) is an advanced magnetic resonance imaging (MRI) technique. DTI provides quantitative information at microstuructural level via its parameter indices e.g. mean diffusivity (MD) and fractional anisotropy (FA). It also allows for visualization of neuron fibres through a specific technique called fibre tractography. Leukoaraiosis is an asymptomatic pathological condition of the brain white matter which appears hyperintense on T2-weighted MRI images. Association of leukoaraiosis with age and ischemic heart disease have been previously reported. The objective of this study is to compare MD and FA values measured in various areas of the brain white matter (WM), grey matter (GM), and cerebrospinal fluid (CSF) in humans using DTI. 30 subjects with leukoaraiosis and 12 subjects without leukoaraiosis underwent brain scan using GE 1.5 Tesla MRI system. Region of interests were located in the CSF and various WM and GM areas. Comparison of MD and FA values was made between leukoaraiosis tissue (LA) and normal appearing brain tissue (NABT) measured within the same leukoaraiosis subjects, and with normal brain tissue (CONTROL) of healthy control subjects. LA demonstrated a significantly higher MD and lower FA compared to NABT and CONTROL in frontal and occipital WM areas. No differences were observed in MD in any brain region between NABT and CONTROL. Whereas no differences were observed in FA between NABT and CONTROL except in the occipital WM. Fibre tractography showed 31.7% to 56.1% lesser fibre tracts in LA subjects compared to CONTROL subjects. Significant differences were found between pathological tissue compared to normal appearing brain tissue and normal brain tissue. Fibre tractography exposed reduced number of neural fibres in leukoaraiosis subjects as compared to normal subjects.
  11. Siti Yazmin Zahari Sham, Nor Aini Umar, Zarida Hambali, Rosdinom Razali, Mohd Rizal Abdul Manaf
    Subclinical hypothyroidism (SHT) is a biochemical diagnosis, defined as an elevated Thyroid Stimulating Hormone (TSH) with normal free thyroxine (FT4). It affects 4-10% of the adult population and is more prevalent in elderly women. Its commonest cause is autoimmune thyroiditis, detected by anti- thyroid peroxidase antibody (TPO-Ab). About 2-5% of SHT patients progress to overt hypothyroidism annually. The SHT prevalence among depressed patients ranges between 3% and 17%. This study aimed to determine the prevalence of SHT and TPO-Ab positivity among patients diagnosed with depressive disorders. It was a cross-sectional study carried out in the Universiti Kebangsaan Malaysia Medical Centre over a 12 months period. Serum TSH, FT4 and TPO-Ab were measured. Results showed that 82% of depressed patients were euthyroid, 4% had SHT, 11% had subclinical hyperthyroidism and 2% had discordant thyroid function. TPO-Ab positivity among the subjects was 7%, one of whom had SHT. In conclusion, the prevalence of SHT and TPO-Ab positivity in the study population, at 4% and 7%, respectively, were comparable to previous findings.
  12. Wan Salwina Wan Ismail, Aili Hanim Hashim, Kaur, Manveen, Choo, Shell Pin, Fairuz Nazri Abdul Rahman
    Attention Deficit Hyperactivity Disorder(ADHD) and Tourrete Syndrome(TS) commonly
    co-occur, imposing a special challenge in the management. Case report: This is a case of a nine year old boy with ADHD and TS, who had been on methylphenidate, risperidone, fluvoxamine and atomoxetine, alone and in combination. Tics worsened with methylphenidate but improved after its withdrawal, and the addition of risperidone and fluvoxamine. Later, atomoxetine was added which worsened the tics, even when it was removed. Significant improvement in the tics were only obvious when fluvoxamine was taken off. Discussion: The possible roles of dopamine and serotonin neurotransmission, and metabolism of cytochrome P450 D26 in the pathophysiology were discussed. Conclusion: The use of multiple medications need cautious consideration and monitoring in a child patient to avoid unwanted complications and risks.
  13. Singh, Devinder Kaur Ajit, Nor Najwatul Akmal Ab Rahman, Roslee Rajikan, Asfarina Zainudin, Nor Azlin Mohd Nordin, Zainura Abdul Karim, et al.
    Balance and motor skills are essential prerequisites for physical development of a child. The aims of this study were to measure anthropometrics, postural balance and motor skills; and examine their correlation among healthy preschool children. Forty nine healthy preschool children aged between 3 to 4 years old participated from PERMATA preschool organization. Pediatric Balance Scale and Peabody Development Motor Scale-2nd Edition (PDMS-2) were administered to measure balance skills for both fine and gross motor skills respectively. Mann-Whitney U test demonstrated that there was no significant difference in balance (p=0.72) and motor skill (p=0.33) between boys and girls. Spearman correlation coefficient demonstrated that there was significant correlation between balance skills with height (r=0.45, p=0.001) and body mass index(r=0.47, p=0.001). No significant correlation was found between balance skills and motor skills (r=0.11, p=0.44). The present study suggests that balance skills in healthy preschool children aged 3-4 years old are correlated with their physical growth such as height and weight but not motor skills.
  14. Andi Anggeriana Andi Asri, Noor Azmi Mat Adenan, Ali Jafarzadeh Esfehani, Norhafizah Mohtaruddin, Ma, Saung Oo, Latiffah A. Latiff
    Early pregnancy losses occur in 10-20% of all pregnancies. Surgical evacuation has always been the mainstay of management of miscarriages. The main aim of this study was to understand the success rate of expectant management of miscarriage with regards to gestational sac size and period of gestation. The secondary outcome was to measure the satisfaction level and the rate of pregnancy after 6 month of expectant management. Patients diagnosed with missed miscarriages were requested to choose between expectant or surgical management. Those decided for expectant management on “wait and watch” approach were assessed weekly up to 5 completed weeks until complete miscarriage was achieved spontaneously. Surgical evacuation was performed if medically indicated or requested by the patients at any time or at the end of fifth week if complete miscarriage was not achieved. Out of 212 cases, 75 (35.4%) opted for expectant management. Complete miscarriage was achieved in 85.3% of subjects by the end of fifth weeks respectively. Mean of Gestational sac size and period of gestation was not found to influence the success rate of complete spontaneous miscarriage in the expectant management. No morbidity was recorded during the five weeks of the study period. Mean satisfaction score was 9.7±8.3. Pregnancy occurred in 47% of patients within 6 months follow up. The Receiver operation characteristic (ROC) curve analysis suggested the end of second week as the cut off for surgical intervention. This study revealed that expectant management of missed miscarriage is a reliable management of missed miscarriage within the first two weeks.
  15. Lili Asma Ismail, Lekhraj Rampal, Hejar Abdul Rahman, Nazri Omar, Habshah Midi, Azrin Esmady Ariffin
    Microbial keratitis is one of the most challenging complications of contact lens (CL) wear. Proper CL practice plays an important role to reduce the risk for contact lens related microbial keratitis (CLRMK). Methods: This multi-centre case-control study was conducted from January 2008 until June 2009 to determine the risk factors associated with CLRMK. Cases were defined as respondents who were treated for CLRMK, whilst controls were respondents who were contact lens wearers without microbial keratitis. Ninety four cases were compared to 94 controls to determine the risk factors for
    CLRMK. Results: The predictors for CLRMK were: Not washing hands with soap before handling CL (aOR 2.979, CI 1.020, 8.701 p=0.046), not performing rubbing technique whilst cleaning the CL (aOR 3.006, CI 1.198, 7.538 p=0.019) and, not cleaning the lens case with multipurpose solution daily (aOR 3.242 CI 1.463, 7.186 p=0.004). Sleeping overnight with the CL in the eye (aOR 2.864, CI 0.978, 8.386 p=0.049) and overall non-compliance with lens care procedures (aOR 2.590, CI 1.003, 6.689 p=0.049) contributed significantly to CLRMK. Conclusion: Health education and promotion in contact lens care are important and should be conducted by eye care practitioners to reduce the occurrence of CLRMK.
  16. Subapriya Suppiah, Lee, Roy-Ming Chow, Nor Sharmin Sazali, Hasyma Abu Hassan
    Introduction: Non-alcoholic Fatty Liver Disease (NAFLD) is one of the end organ damage detected
    in patients having metabolic syndrome X and it can lead to chronic liver failure. Therefore, it is
    important to be able to assess the condition in a quantifiable manner to help clinicians recognize
    and treat this disease. Objective: We aimed to determine the prevalence of NAFLD in patients with
    metabolic syndrome in Serdang Hospital, Malaysia using contrast-enhanced multidetector computed
    tomography (CECT) abdominal scan. The study also aimed to calculate the quantification of NAFLD
    using liver to spleen density CT Hounsfield Unit ratio, CTL/S or CTL/S measurement using abdominal
    CECT scans. Furthermore, we aimed to verify the correlation of dyslipidemia with NAFLD based on
    the CTL/S parameter. Materials and Method: We conducted a cross-sectional retrospective study in
    Hospital Serdang, Malaysia using data from January 2012 to December 2013. The sample size was 279
    patients with metabolic syndrome who had undergone CECT abdominal scan. Patient demographics
    were descriptively analysed. Spearman’s correlation test was used to look for association among lipid
    profile, blood sugar level and CTL/S ratio. Results: The prevalence of NAFLD in metabolic syndrome
    patients in our population was 82.8%. Prevalence of NAFLD was high among the elderly population (≥
    57 years old). Additionally, Indian ethnics with metabolic syndrome had the highest risk of developing
    NAFLD (90.9%). There was a significant association between elevated LDL levels and CTL/S ratio
  17. Sethu Thakachy Subha, Mohamad Doi, Hemalata Kumari
    Mastoid osteoma is a rare benign neoplasm of mesenchymal origin. Osteomas of the temporal bone are
    infrequent, and these mastoid osteomas are a definite rare occurrence. These tumours can present with
    cosmetic deformity and sometimes with pain. In this report we describe a patient with mastoid osteoma
    who presented with cosmetic deformity and experienced retro auricular pain.
  18. Mohd.Tohit ER, Khalid B, Seman Z, Md Noor S
    Thrombosis is one of the causes of morbidity and mortality in women of reproductive age group. Thrombosis at unusual sites may pose diagnostic and management dilemma for health care personnel. Teamwork and good communication provide the best modalities for maximum benefits to patients. Here with, we presented a case series of thrombosis at unusual sites seen and managed in our clinic.
    A 35 year-old Malay lady presented with left hemiparesis while she was on oestrogen based combined contraception pills (C-OCP). Imaging studies showed extensive venous thrombosis with bilateral acute cortical infarct. Thrombophilia screening of antiphospholipid syndrome were negative. She was put on anticoagulant and stopped 2 years after the incident.
    A 40 year-old Malay lady presented with abdominal discomfort, lethargy and massive splenomegaly. Bone marrow and trephine examination revealed primary myelofibrosis with positive JAK2617F. Imaging study showed chronic portal vein thrombosis with portal vein hypertension, complicated by gastro-oesophageal varices. She was put on hydroxyurea and later started on ruxolitinib with banding done over her gastro-oesophageal varices.
    A 26 year-old Malay lady presented with serositis, mouth ulcer and anaemia symptoms. Laboratory studies were positive for systemic lupus erythematosus and negative for antiphospholipid study. Imaging study showed long segment thrombosis of right internal jugular vein with surrounding subcutaneous oedema. She is currently stable on anticoagulants and steroid. Teamwork and holistic approach is practiced in the investigation and management to provide maximum benefits for patients.
  19. Anusha Balasubramanian, Irfan Mohamad, Purushotman Ramasamy, Avatar Singh Mohan Singh, Lina Ling Chooi, Ferdinand Jesudian Kovilpillai
    Plunging epidermoid cyst of the floor of mouth is indeed an uncommon entity. A 34-year old Malay
    gentleman had presented to our centre with a floor of mouth lesion that extended into the submental
    region. Clinical findings and imaging studies pointed towards the impression of a plunging ranula.
    Histopathological examination of a completely excised mass via intraoral approach, confirmed the
    diagnosis of an epidermoid cyst. He was well on follow up with no subsequent recurrence. We discuss
    the nature of epidermoid cyst and its surgical management.
  20. Shalini Vellasamy, Sharmili Vidyadaran, Elizabeth George, Rajesh Ramasamy
    Mesenchymal stem cells (MSCs) hold a great therapeutic potential for regenerative
    medicine and tissue engineering due to inherent immunomodulatory and reparative properties. Hence,
    it necessitates a readily available supplyof MSCs to meet the clinical demands adequately. Although,
    a human placenta can produce MSCs, the in vitro culture-mediated cellular senescence often affect the
    quality of cell product. Thus, the current study has explored the feasibility of basic fibroblast growth
    factor (bFGF) to enhance the growth of placenta-derived MSCs (PLC-MSCs). Methods:The basic
    fibroblast growth factor (bFGF) was supplemented to optimise the growth of MSCs. The effects of
    bFGF on morphology, growth kinetics and cytokine secretion of PLC-MSCs were assessed. Results:
    The bFGF supplementation increased the proliferation of PLC-MSCs in a dose-dependent manner and
    40 ng/ml showed a high trophism effect on PLC-MSC’s growth. In the presence of bFGF, PLC-MSCs
    acquired a small and well-defined morphology that reflect an active proliferative status. BFGF has
    induced PLC-MSCs to achieve a shorter doubling time (45 hrs) as compared to the non-supplemented
    PLC-MSCs culture (81 hrs). Furthermore, bFGF impelled PLC-MSCs into cell cycle machinery where
    a substantial fraction of cells was driven to S and G2/M phases. Amongst, 36 screened cytokines, bFGF
    had only altered the secretion of IL-8, IL-6, TNFR1, MMP3 and VEGF. Conclusion:The present study
    showed that bFGF supplementation promotes the growth of PLC-MSCs without significantly deviating
    from the standard criteria of MSCs. Thus, bFGF could be considered as a potential mitogen to facilitate
    the large-scale production of PLC-MSCs.
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