Malaysian Journal of Pathology最新文献

Chronic kidney disease (CKD) is a common clinical condition with significant health risks for patients and is widely recognised as a major public health concern. Laboratory medicine plays a crucial role in both diagnosing and managing CKD, as diagnosis and staging rely on estimated glomerular filtration rate (GFR) and evaluating albuminuria (or proteinuria). It was evident that the laboratory assessment of CKD in Malaysia is not standardised. In light of this, the Malaysian Association of Clinical Biochemistry CKD (MACB-CKD) Task Force issued a national recommendation for laboratory diagnosis of CKD in 2019. Recently, Kidney Disease: Improving Global Outcomes (KDIGO) updated its recommendations for the diagnosis, evaluation, management, and treatment of CKD. These guidelines incorporate the most recent evidence-based practices to support laboratory professionals in delivering optimal care for individuals with CKD, focusing on critical areas such as estimated GFR (eGFR), albuminuria assessment, and risk stratification. The latest National Institute for Health and Care Excellence (NICE) guidelines on CKD has also incorporated the Kidney Failure Risk Equation (KFRE) as a tool for predicting the likelihood of progression to end-stage kidney disease (ESKD) in CKD patients. Hence, the MACB-CKD Task Force has reviewed and updated its recommendations for laboratory reporting of eGFR and urine albumin in alignment with the latest guidelines.

Osteoarthritis (OA) is a prevalent degenerative joint disease characterised by cartilage and subchondral bone breakdown, impacting millions worldwide. This review provides an overview of the complex aetiology of OA, integrating biochemical, mechanical, and genetic factors. It also emphasises a multifaceted management approach, combining non-pharmacological, pharmacological, and surgical treatments. Non-pharmacological strategies include physical therapy and lifestyle changes, which are crucial for pain relief and functional improvement. Pharmacological options focus on non-steroidal anti-inflammatory agents and emerging disease-modifying drugs, while surgical interventions are reserved for advanced cases. The review also explores the potential of regenerative medicine and personalised treatments in revolutionising OA management. Additionally, it underscores the importance of advanced diagnostic tools in early disease detection and monitoring, paving the way for timely and effective interventions.

The surgical ciliated cyst is a newly added entity under the cysts of the jaws in the World Health Organization (WHO) Classification of Head and Neck Tumours (2022). It is preceded by a prior surgery to the jaw many years before its diagnosis. A 53-year-old Chinese female, who had undergone cleft lip and palate repair followed by orthognathic surgery before the age of 20, was referred for management of an incidentally found cyst in the left maxilla. A cone-beam computed tomography revealed a unilocular, well-defined radiolucent lesion periapical to tooth 26. A provisional diagnosis of radicular cyst was given, and the cyst was enucleated under general anaesthesia. Histopathological examination showed a multicystic lesion lined by pseudostratified ciliated columnar epithelium. This case was diagnosed as a surgical ciliated cyst based on the history of previous surgery to the maxillary region, radiographic and histopathological features, which are the three essential features for diagnosis based on the WHO Classification (2022). Surgical ciliated cysts are a rare complication of orthognathic surgery which may be underreported in populations outside Japan. Now that it has been added to the latest WHO Classification, the diagnosis of this entity may be more common than previously reported.

Introduction: ICAM-1 is an adhesion molecule expressed on the endothelial cells and is involved in regulating leukocyte recruitment to the site of inflammation. Elevated ICAM-1 mRNA expression was found in the serum of mothers with chorioamnionitis. This study aimed to determine the expression of ICAM-1 in the placenta and umbilical cord of pregnancy with chorioamnionitis, and its association with adverse neonatal outcome.

Materials and methods: This study comprised a total of 86 cases of which there were 35 cases of non-chorioamnionitis and 51 cases of chorioamnionitis consisting of acute subchorionitis/chorionitis (maternal inflammatory response (MIR) stage 1, n=17), acute chorioamnionitis (MIR stage 2, n=17) and acute necrotising chorioamnionitis (MIR stage 3, n=17). Formalin-fixed paraffin embedded placenta tissue blocks were retrieved from the histopathology archive. ICAM-1 immunohistochemistry was performed on all cases and their expressions were evaluated on cells of the umbilical vein, umbilical artery, foetal vessels and maternal vessels.

Results: The expression of ICAM-1 in umbilical vein was significantly associated with cases of foetal inflammatory response (p<0.001).

Conclusion: We found that ICAM-1 expression was upregulated in the endothelial cells of umbilical vein in acute chorioamnionitis with positive foetal inflammatory response. ICAM-1 might be involved in the pathogenesis of acute chorioamnionitis and funisitis. Further study using a larger cohort is needed to strengthen this observation.

Conventionally, megakaryocytes (MKs) are regarded as platelet-producing cells and their platelet-related functions in haemostasis have been well documented. However, it is increasingly evident that MKs have functions beyond platelet production. Convincing findings suggest that MKs are active participants in immunity and infections. Many reviews in the published literature have examined the immune functions of MK-derived platelets. However, relatively few reviews have emphasised on the role of MKs as immune cells. This review gives an overview of MKs, megakaryopoiesis and thrombocytopoiesis, as well as a thorough examination of the evidence that favours MKs as immune cells. The emerging and multifaceted contributions of MKs to host defence against various infections are also discussed. Together, these findings identify MKs as key players in both immune homeostasis and host-pathogen interactions, presenting new therapeutic opportunities.

Introduction: Oral cancer is considered the sixth most common form of cancer worldwide. It causes significant morbidity and mortality, especially in low socioeconomic status groups. However, Cancer chemoprevention encompasses the use of specific compounds to suppress the growth of tumours or inhibit carcinogenesis. Natural products have been identified as one of the most significant sources of anti-cancer agents. Meanwhile, several synthetic drugs exhibit potential cytotoxicity and can induce a wide range of degenerative diseases.

Aim of the review: This review aims to determine the various plants, vegetables, and fruits possessing natural chemotherapeutic agents against oral cancer cells.

Materials and methods: A comprehensive review of findings reported in articles retrieved from searches of computerised databases, hand searches, and authoritative texts. Inclusion databases include PubMed, Medline, Web of Science, Scopus, and Scientific. Exclusion Computerised databases: Wikipedia or unknown sources.

Results: Natural products have fewer side effects, high selectivity, low toxicity, and eliminate cancer cells. Thus, the application of natural products as alternative oral and other cancer therapies has recently demonstrated remarkable progress.

Conclusion: Natural products have been widely used in developing oral anti-cancer drugs. Most of these natural products present bioactive chemical agents and novel mechanisms of action, such as the inhibition of tumour cell growth, the induction of apoptosis, DNA damage, and the inhibition of topoisomerases I and II. In future, the successful integration of natural products in oral cancer chemoprevention field depends on the advancement of molecular targeting, personalised approaches, and the exploration of novel drug delivery systems. Furthermore, integration of preclinical findings in clinical trials will be important for translating research into impactful interventions.