Displaying publications 21 - 40 of 375 in total

Abstract:
Sort:
  1. Al-Joudi FS, Kaid FA, Ishak I, Mohamed N, Osman K, Alias IZ
    Indian J Pathol Microbiol, 2011 Apr-Jun;54(2):284-9.
    PMID: 21623075 DOI: 10.4103/0377-4929.81596
    Human mammaglobin (hMAG) is a secreted protein which has been detected in breast epithelial cells of mammary glands and has been used as a specific marker for breast cancer.
    Matched MeSH terms: Disease Progression
  2. Leng LK, Pancharoen C, Bunupuradah T, Thisyakorn U, Trinavarat P, Sosothikul D, et al.
    J Med Assoc Thai, 2007 Sep;90(9):1937-42.
    PMID: 17957942
    This report documents a case of infiltrating cervical spinal mass, most likely a spinal tumor, in a girl with HIV infection that regressed following HAART and without treatment of the tumor or any anti-infectives.
    Matched MeSH terms: Disease Progression
  3. Chan LG, Parashar UD, Lye MS, Ong FG, Zaki SR, Alexander JP, et al.
    Clin Infect Dis, 2000 Sep;31(3):678-83.
    PMID: 11017815
    From April through June 1997, 29 previously healthy children aged <6 years (median, 1.5 years) in Sarawak, Malaysia, died of rapidly progressive cardiorespiratory failure during an outbreak of hand, foot, and mouth disease caused primarily by enterovirus 71 (EV71). The case children were hospitalized after a short illness (median duration, 2 days) that usually included fever (in 100% of case children), oral ulcers (66%), and extremity rashes (62%). The illness rapidly progressed to include seizures (28%), flaccid limb weakness (17%), or cardiopulmonary symptoms (of 24 children, 17 had chest radiographs showing pulmonary edema, and 24 had echocardiograms showing left ventricular dysfunction), resulting in cardiopulmonary arrest soon after hospitalization (median time, 9 h). Cardiac tissue from 10 patients showed normal myocardium, but central nervous system tissue from 5 patients showed inflammatory changes. Brain-stem specimens from 2 patients were available, and both specimens showed extensive neuronal degeneration, inflammation, and necrosis, suggesting that a central nervous system infection was responsible for the disease, with the cardiopulmonary dysfunction being neurogenic in origin. EV71 and possibly an adenovirus, other enteroviruses, or unknown cofactors are likely responsible for this rapidly fatal disease.
    Matched MeSH terms: Disease Progression
  4. Yam YY, Hoh BP, Othman NH, Hassan S, Yahya MM, Zakaria Z, et al.
    Genet. Mol. Res., 2013;12(1):319-27.
    PMID: 23420356 DOI: 10.4238/2013.February.7.1
    Colorectal cancer is one of the most common cancers in many countries, including Malaysia. The accumulation of genomic alterations is an important feature of colorectal carcinogenesis. A better understanding of the molecular events underlying the stages of colorectal carcinogenesis might be helpful in the detection and management of the disease. We used a commercially available single-nucleotide polymorphism genotyping array to detect both copy number abnormalities (CNAs) and copy-neutral loss of heterozygosity (LOH) in sporadic colorectal carcinomas. Matched tumor and normal tissues of 13 colorectal carcinomas (Dukes' stages A-D) were analyzed using a 250K single nucleotide polymorphism array. An additional assay was performed to determine the microsatellite instability status by using the National Cancer Institute-recommended BAT-26 panel. In general, copy number gain (92.3%) was most common, followed by copy number loss (53.8%) and copy-neutral LOH (46.2%). Frequent CNAs of gains and losses were observed on chromosomes 7p, 8, 13q, 17p, 18q, and 20q, and copy-neutral LOH was observed on chromosomes 2, 6, 12, 13q, 14q, 17, 20p, 19q, and 22q. Even though genomic alterations are associated with colorectal cancer progression, our results showed that DNA CNAs and copy-neutral LOH do not reflect disease progression in at least 50% tumors. Copy-neutral LOH was observed in both early and advanced tumors, which favors the involvement of these genomic alterations in the early stages of tumor development.
    Matched MeSH terms: Disease Progression
  5. Ahmad F, Shankar EM, Yong YK, Tan HY, Ahrenstorf G, Jacobs R, et al.
    Front Immunol, 2017;8:338.
    PMID: 28396665 DOI: 10.3389/fimmu.2017.00338
    The CD1d-restricted invariant natural killer T (iNKT) cells are implicated in innate immune responses against human immunodeficiency virus (HIV). However, the determinants of cellular dysfunction across the iNKT cells subsets are seldom defined in HIV disease. Herein, we provide evidence for the involvement of the negative checkpoint regulator (NCR) 2B4 in iNKT cell alteration in a well-defined cohort of HIV-seropositive anti-retroviral therapy (ART) naïve, ART-treated, and elite controllers (ECs). We report on exaggerated 2B4 expression on iNKT cells of HIV-infected treatment-naïve individuals. In sharp contrast to CD4(-)iNKT cells, 2B4 expression was significantly higher on CD4(+) iNKT cell subset. Notably, an increased level of 2B4 on iNKT cells was strongly correlated with parameters associated with HIV disease progression. Further, iNKT cells from ART-naïve individuals were defective in their ability to produce intracellular IFN-γ. Together, our results suggest that the levels of 2B4 expression and the downstream co-inhibitory signaling events may contribute to impaired iNKT cell responses.
    Matched MeSH terms: Disease Progression
  6. Abiola, Abdulrahman Surajudeen, Lekhraj Rampal, Norlijah Othman, Faisal Ibrahim, Hayati Kadir@Shahar, Anuradha P. Radhakrishnan
    MyJurnal
    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.
    Matched MeSH terms: Disease Progression
  7. Oh L, Ab Rahman S, Dubinsky K, Azanan MS, Ariffin H
    Technol Cancer Res Treat, 2023;22:15330338221149799.
    PMID: 36624625 DOI: 10.1177/15330338221149799
    Recent studies have identified causal links between altered gut microbiome, chronic inflammation, and inflammation-driven conditions such as diabetes and cardiovascular disease. Childhood cancer survivors (CCS) show late effects of therapy in the form of inflammaging-related disorders as well as microbial dysbiosis, supporting a hypothesis that the conditions are interconnected. Given the susceptibility of the gut microbiome to alteration, a number of therapeutic interventions have been investigated for the treatment of inflammatory conditions, though not within the context of cancer survivorship in children and adolescents. Here, we evaluate the potential for these interventions, which include probiotic supplementation, prebiotics/fiber-rich diet, exercise, and fecal microbiota transplantation for prevention and treatment of cancer treatment-related microbial dysbiosis in survivors. We also make recommendations to improve adherence and encourage long-term lifestyle changes for maintenance of healthy gut microbiome in CCS as a potential strategy to mitigate treatment-related late effects.
    Matched MeSH terms: Disease Progression
  8. Ariffin NS
    Pathol Res Pract, 2024 Feb;254:155076.
    PMID: 38219493 DOI: 10.1016/j.prp.2023.155076
    Despite advances in screening, therapy and surveillance, breast cancer remains threatening to women. Worst, patients suffer from side effects of treatments and cancer cells become resistant. The emergence of RUNX1 in breast cancer has put it in a spotlight due to its roles in the disease progression. It also plays important roles in normal mammary glands such as for cell growth, proliferation, migration and stemness. However, mutations in the RUNX1 gene have changed the regulation of these phenotypes and the full spectrum of its implications in breast cancer patients is unknown. In this study therefore, the pattern of RUNX1 mutations in breast cancer patients was examined to understand its fundamental impacts on the disease. The perturbation of RUNX1 and its mutations in breast cancer was elucidated through different studies reported in cBioPortal in the past ten years. From our analyses, the majority of RUNX1 mutations were found in the primary breast cancer, with women constituted most of the mutations, especially on the left side of the breast. Similarly, increased number of mutations was observed in ER-positive breast cancer patients and this was also the case at the early stage of the disease development. The level of RUNX1 mutations also increased gradually as patients got older and the peak was highest in the patients of 60-70 years old. Altogether, these data indicated that the mutated RUNX1 gene contributed to the progression of breast cancer and understanding of its regulatory mechanisms is crucial to therapeutically target this gene in the future.
    Matched MeSH terms: Disease Progression
  9. John RR, Ravindran C, Malathi N, Aruna RM
    J Maxillofac Oral Surg, 2018 Sep;17(3):389-395.
    PMID: 30034160 DOI: 10.1007/s12663-018-1087-2
    Abstract: Cyclin D1 is linked with the development and progression of oral squamous cell carcinoma (OSCC). This case-control study was directed to characterise the immunoreactivity of the protein cyclin D1 and its correlation with the clinicopathological parameters of patients with OSCC and potentially malignant disorders (PMD). A group of patients with OSCC were followed up after treatment, and the cyclin D1 expression was reviewed for correlation of cyclin D1 expression with prognosis of the patients.

    Methodology: Sixty individuals were included in this study: OSCC (20), PMD (20) and Control (20). Immunohistochemistry assay was evaluated. The clinicopathological parameters were correlated with the staining intensity of cyclin D1. The results were subjected to Pearson's correlation test.

    Results: Age, gender and site showed no statistically significant correlation with cyclin D1 expression in OSCC and PMD. The cyclin D1 score did not show a significant difference with histopathological diagnosis of OSCC. Cyclin D1 was not expressed in 60% of the Control and 30% PMD cases while the expression of cyclin D1 was seen in 100% of OSCC cases although cyclin D1 score did not show a statistically significant association in the prognosis of the disease among the OSCC patients.

    Matched MeSH terms: Disease Progression
  10. Nasir F, Asha'ari ZA
    Malays Fam Physician, 2017;12(2):26-28.
    PMID: 29423127
    Otitis media is a common disease encountered in the primary practice. Most cases are successfully treated with antibiotics without any sequelae. Because of these, potential serious complications of otitis media may be overlooked. We report a rare case of Bezold's abscess, as a complication of otitis media and discuss its pathophysiology and management.
    Matched MeSH terms: Disease Progression
  11. Chow PK, Poon DY, Khin MW, Singh H, Han HS, Goh AS, et al.
    PLoS One, 2014;9(3):e90909.
    PMID: 24614178 DOI: 10.1371/journal.pone.0090909
    The safety and tolerability of sequential radioembolization-sorafenib therapy is unknown. An open-label, single arm, investigator-initiated Phase II study (NCT0071279) was conducted at four Asia-Pacific centers to evaluate the safety and efficacy of sequential radioembolization-sorafenib in patients with hepatocellular carcinoma (HCC) not amenable to curative therapies.
    Matched MeSH terms: Disease Progression
  12. Fatin FO, Azrin AS, Norsa'adah B, Adnan AS, Asyikeen WWN
    Saudi J Kidney Dis Transpl, 2023 Jul 01;34(4):355-364.
    PMID: 38345591 DOI: 10.4103/1319-2442.395452
    Chronic kidney disease (CKD) represents a major public health issue, which then progresses to end-stage renal disease (ESRD) sooner or later. This retrospective cohort study aimed to determine the renal survival time of CKD patients. In total, 247 CKD patients in one of the tertiary referral hospitals in Malaysia between January 2005 and December 2015 were enrolled. All CKD patients were included if they were dependent on dialysis. Patients who were transferred out and those with incomplete records were excluded from the study. The renal survival time was calculated from the time of the first diagnosis of CKD to a confirmed ESRD diagnosis or the use of dialysis. In total, 193 (78.1%) CKD patients progressed to ESRD. The mean age of the ESRD patients was 53 years old. The majority of ESRD patients were male (57.0%) and of Malay ethnicity (89.6%). The most common comorbidities among ESRD patients were hypertension (92.2%) and diabetes mellitus (85.5%). The majority of patients were in Stage IV and V (97.9%). The overall renal survival time of CKD patients who develop ESRD was 26 months (95% confidence interval: 20.41, 31.59). Patients who smoked (P = 0.001), had hyperlipidemia (P <0.001) and consumed lipid-lowering agents (P = 0.004) had a significant P-value in the log-rank test. The progression of CKD from diagnosis to ESRD was within 2 years. Therefore, early recognition of CKD is important to improve patients' outcomes and prolong their renal survival time.
    Matched MeSH terms: Disease Progression
  13. Yow, K.S., Sapar, S.H., Atan, K.A.
    MyJurnal
    This paper investigates and determines the solutions for the Diophantine equation x2 + 4.7b = y2r, where
    x, y, b are all positive intergers and r > 1. By substituting the values of r and b respectively, generators of
    x and yr can be determined and classified into different categories. Then, by using geometric progression
    method, a general formula for each category can be obtained. The necessary conditions to obtain the
    integral solutions of x and y are also investigated.
    Matched MeSH terms: Disease Progression
  14. Harun SN, Wainwright CE, Grimwood K, Hennig S, Australasian Cystic Fibrosis Bronchoalveolar Lavage (ACFBAL) study group
    Thorax, 2019 02;74(2):125-131.
    PMID: 30275132 DOI: 10.1136/thoraxjnl-2018-211550
    BACKGROUND: The impact of Aspergillus on lung disease in young children with cystic fibrosis is uncertain.
    AIMS: To determine if positive respiratory cultures of Aspergillus species are associated with: (1) increased structural lung injury at age 5 years; (2) accelerated lung function decline between ages 5 years and 14 years and (3) to identify explanatory variables.
    METHODS: A cross-sectional analysis of association between Aspergillus positive bronchoalveolar lavage (BAL) cultures and chest high-resolution CT (HRCT) scan findings at age 5 years in subjects from the Australasian Cystic Fibrosis Bronchoalveolar Lavage (ACFBAL) study was performed. A non-linear mixed-effects disease progression model was developed using FEV1% predicted measurements at age 5 years from the ACFBAL study and at ages 6-14 years for these subjects from the Australian Cystic Fibrosis Data Registry.
    RESULTS: Positive Aspergillus BAL cultures at age 5 years were significantly associated with increased HRCT scores for air trapping (OR 5.53, 95% CI 2.35 to 10.82). However, positive Aspergillus cultures were not associated with either FEV1% predicted at age 5 years or FEV1% predicted by age following adjustment for body mass index z-score and hospitalisation secondary to pulmonary exacerbations. Lung function demonstrated a non-linear decline in this population.
    CONCLUSION: In children with cystic fibrosis, positive Aspergillus BAL cultures at age 5 years were associated contemporaneously with air trapping but not bronchiectasis. However, no association was observed between positive Aspergillus BAL cultures on FEV1% predicted at age 5 years or with lung function decline between ages 5 years and 14 years.
    Matched MeSH terms: Disease Progression
  15. Han WM, Bijker R, Chandrasekaran E, Pujari S, Ng OT, Ly PS, et al.
    PMID: 32740369 DOI: 10.1097/QAI.0000000000002464
    BACKGROUND: We validated the Data collection on Adverse events of anti-HIV Drugs (D:A:D) full- and short-risk score models for CKD in the Asian HIV cohorts.

    SETTINGS: A validation study among people living with HIV(PLHIV) aged ≥18 years among the cohorts in the Asia-Pacific region.

    METHODS: PLHIV with baseline eGFR>60 mL/min/1.73m were included for validation of the D:A:D CKD full version and the short version without cardiovascular risk factors. Those with <3 eGFR measurements from baseline or previous exposure to potentially nephrotoxic antiretrovirals were excluded. Kaplan-Meier methods were used to estimate the probability of CKD development. Area Under the Receiver Operating Characteristics (AUROC) was also used to validate the risk score.

    RESULTS: We included 5,701 participants in full model(median 8.1 [IQR 4.8-10.9] years follow-up) and 9,791 in short model validation(median 4.9 [IQR 2.5-7.3] years follow-up). The crude incidence rate of CKD was 8.1 (95%CI 7.3-8.9) per 1,000 person-years(PYS) in the full model cohort and 10.5 (95%CI 9.6-11.4) per 1,000 PYS in the short model cohort. The progression rates for CKD at 10 years in the full model cohort were 2.7%, 8.9% and 26.1% for low-, medium- and high-risk groups, and 3.5%, 11.7% and 32.4% in the short model cohort. The AUROC for the full and short risk score was 0.81 (95%CI 0.79-0.83) and 0.83 (95%CI 0.81-0.85), respectively.

    CONCLUSION: The D:A:D CKD full- and short-risk score performed well in predicting CKD events among Asian PLHIV. These risk prediction models may be useful to assist clinicians in identifying individuals at high risk of developing CKD.

    Matched MeSH terms: Disease Progression
  16. Lee WS, Karthik SV, Ng RT, Ong SY, Ong C, Chiou FK, et al.
    Pediatr Neonatol, 2019 08;60(4):396-404.
    PMID: 31409456 DOI: 10.1016/j.pedneo.2018.09.007
    BACKGROUND: Current knowledge on the clinical features and natural history of childhood primary sclerosing cholangitis - inflammatory bowel disease in Asia is limited. We described the presenting features and natural history of primary sclerosing cholangitis-inflammatory bowel disease seen in a cohort of Southeast Asian children.

    METHODS: We conducted a retrospective review of childhood primary sclerosing cholangitis-inflammatory bowel disease from three tertiary centers in Singapore and Malaysia.

    RESULTS: Of 24 patients (boys, 58%; median age at diagnosis: 6.3 years) with primary sclerosing cholangitis-inflammatory bowel disease (ulcerative colitis, n = 21; Crohn's disease, n = 1; undifferentiated, n = 2), 63% (n = 15) were diagnosed during follow-up for colitis, and 21% (n = 5) presented with acute or chronic hepatitis, 17% (n = 4) presented simultaneously. Disease phenotype of liver involvement showed 79% had sclerosing cholangitis-autoimmune hepatitis overlap, 54% large duct disease, and 46% small duct disease. All patients received immunosuppression therapy. At final review after a median [±S.D.] duration follow-up of 4.7 [±3.8] years, 12.5% patients had normal liver enzymes, 75% persistent disease, and 12.5% liver failure. The proportion of patients with liver cirrhosis increased from 13% at diagnosis to 29%; 21% had portal hypertension, and 17% had liver dysfunction. One patient required liver transplant. Transplant-free survival was 95%. For colitis, 95% had pancolitis, 27% rectal sparing, and 11% backwash ileitis at initial presentation. At final review, 67% patients had quiescent bowel disease with immunosuppression. One patient who had UC with pancolitis which was diagnosed at 3 years old developed colorectal cancer at 22 years of age. All patients survived.

    CONCLUSIONS: Liver disease in primary sclerosing cholangitis-inflammatory bowel disease in Asian children has variable severity. With immunosuppression, two-thirds of patients have quiescent bowel disease but the majority have persistent cholangitis and progressive liver disease.

    Matched MeSH terms: Disease Progression
  17. Liza-Sharmini AT, Ng GF, Nor-Sharina Y, Khairil Anuar MI, Nik Azlan Z, Azhany Y
    Med J Malaysia, 2014 Dec;69(6):245-51.
    PMID: 25934953 MyJurnal
    OBJECTIVE: To compare the clinical presentation, severity and progression of primary angle closure between Chinese and Malays residing in Malaysia.

    METHODS: A comparative retrospective record review study was conducted involving one hundred (200 eyes) Malay and fifty eight (116 eyes) Chinese patients. They were selected from medical records of Hospital Universiti Sains Malaysia, Kelantan and Hospital Pulau Pinang, Penang, Malaysia. The selected patients were re-diagnosed based on the International Society of Geographical and Epidemiological classification. The clinical data on presentation including the presence of systemic diseases were documented. Progression of the disease was based on available reliable visual fields and optic disc changes of patients who have been on follow-up for at least five years.

    RESULTS: Malay patients presented at older age (61.4 years SD 8.4) compared to Chinese (60.6 years SD 8.3). There was significant higher baseline Intraocular Pressure (IOP) among Malays (34.7 SD 18.5mmHg) compared to Chinese (30.3 SD 16.7mmHg) (p=0.032). The Chinese patients presented with significantly better visual acuity (p<0.001) and less advanced cup to disc changes (p=0.001) compared to Malays. Malay patients progressed faster than the Chinese. Majority progressed within 1 year of diagnosis. Malays without laser peripheral iridotomy (LPI) have a 4 fold (95% CI 1.4, 10.9) risk of progression. Higher baseline IOP, more advanced visual field defect and absence of LPI was identified as significant predictors associated with progression.

    CONCLUSION: The Malays presented with more advanced angle closure glaucoma as compared to the Chinese in Malaysia. Aggressive disease progression was observed in Malays with the onset of optic neuropathy. Effective public awareness and aggressive management is important to prevent blindness in the Malaysian population.
    Matched MeSH terms: Disease Progression
  18. Chan CK, Mohamed RM, Azlina AA, Azhar MM
    Malays Orthop J, 2016 Nov;10(3):42-45.
    PMID: 28553448 MyJurnal DOI: 10.5704/MOJ.1611.004
    Multicentric disappearing bone disease, or Gorham disease, is a rare entity. A middle age woman, presented to us with left sided antalgic gait and severe bony deformity of her left knee. Radiograph revealed massive bone defect of the medial condyle of the left tibia with subluxation of the knee joint. She was scheduled for knee replacement in six months. However, she developed another lesion over the right hip that typically mimicked the disease progression of disappearing bone disease. The right femoral head vanished progressively within three months without significant history of infection or trauma. Subsequent bone biopsy of the right femoral head and left tibia condyle confirmed the diagnosis. Total knee replacement was carried out for her left knee. She remained pain free on her left knee. A year later, after confirming by sequential radiographs that the osteolysis had stopped, total right hip replacement was performed. Five years later, she remained pain free and both the arthroplasties were stable.
    Matched MeSH terms: Disease Progression
  19. Ozmen ZC, Deveci K, Coskun USS, Ozmen Z, Aydogan L, Barut HS
    Trop Biomed, 2023 Mar 01;40(1):101-107.
    PMID: 37356009 DOI: 10.47665/tb.40.1.016
    The aim of this study is to evaluate the clinical significance and diagnostic performance of the immature platelet fraction (%IPF) in Crimean-Congo hemorrhagic fever (CCHF). Samples obtained from 32 healthy control subjects and 40 CCHF patients (9 positive and 31 negative radiological findings) were evaluated in the study. The samples obtained from CT-positive subjects demonstrated higher IPF% values which also exhibited a positive correlation with mean platelet volume (MPV) and platelet size deviation width (PDW) values.The patient group IPF% values were positively correlated with the duration of hospital stay. The ROC analysis also suggested the potential importance of IPF values higher than 10.5% in diagnosing CCHF patients with positive radiological findings.The results of our study showed that % IPF can be considered as a useful parameter in the follow-up of the disease course in patients with CCHF.
    Matched MeSH terms: Disease Progression
  20. Zaid OI, Abd Majid R, Sidek HM, Noor SM, Abd Rachman-Isnadi MF, Bello RO, et al.
    Trop Biomed, 2020 Mar 01;37(1):29-49.
    PMID: 33612716
    Treatment Failure with chloroquine is one of the challenges that faced the dedicated efforts to eradicate malaria This study aims at investigating the impact of treatment failure with chloroquine on the progression of the disease-induced histo-pathogenic and immunogenic outcomes. To achieve this, Rane's protocol with modifications was applied on a model of Plasmodium berghei ANKA infected ICR mice to determine the dose response curve of chloroquine and to screen the treatment impact on the disease progression. Chloroquine was given at 1, 5, 10, 15 and 20 mg/kg once the parasitemia reached to 20-30% (the experimental initiation point). During the subsequent days, the mice were monitored for changes in the clinical signs, hematology parameters and the progress of the parasitemia until the parasitemia reached to 60-70% (the experimental termination point) or up to 10 days after chloroquine administration in case of achieving a complete eradication of the parasite. At the end, the mice were exsanguinated and their blood and organs were collected for the biochemistry and the histology study. A complete eradication of the parasite was achieved at 20 mg/kg while recrudescence was observed at the lower doses. At 1 mg/kg, the parasite growth was comparable to that of the positive control. The histo-pathogenic and immunogenic changes were stronger in the groups that experienced recrudescence (at 5 and 10 mg/kg). All in all, the study highlights the possibility of having a worsened clinical condition when chloroquine is given at its sub-therapeutic doses during malaria treatment.
    Matched MeSH terms: Disease Progression
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links