1.Internal auditing risk analysis for medical laboratories seeking accreditation through the Hong Kong Laboratory Accreditation Scheme (HOKLAS)
Geraldine B. Dayrit ; Dennis Mok ; Rana Nabulsi ; Naira Eloyan ; Sharfuddin Chowdhury ; Arisina Chung Yee Ma
Acta Medica Philippina 2024;58(2):80-90
Objectives:
The primary aim of this study was to determine quantitatively the extent of coverage of the Hong
Kong Laboratory Accreditation Scheme (HOKLAS 015) requirements by guidance checklists (HOKLAS 016‑02 and
HOKLAS 021).
Methods:
The level of conformance requirement coverage of HOKLAS 015 by HOKLAS 016‑02 and HOKLAS 021
was calculated by an evaluation checklist based on conformance requirements in HOKLAS 015. A distribution
analysis of conformance requirements relating to the International Standard ISO 15189:2012 process‑based quality management system model was also performed to elicit further coverage information.
Results:
HOKLAS 016‑02 was found to provide coverage of 76% while HOKLAS 021 was found to provide coverage of 11%. HOKLAS 015 was also found to have a distribution coverage of 78% relating to the International Standard ISO 15189:2012 process‑based quality management system model.
Conclusion
The results of this analysis should be of value to medical laboratories wishing to maintain the internal auditability required by HOKLAS 015 by gaining an awareness of the extent of coverage provided by HOKLAS 016‑02 and HOKLAS 021.
Accreditation
;
Management Audit
2.Diagnostic approach to rickets: an Endocrine Society of Bengal (ESB) consensus statement
Ajitesh ROY ; Amarta Shankar CHOWDHURY ; Arindam RAY ; Arjun BAIDYA ; Bibek ROYCHOWDHURY ; Dasarathi SARKAR ; Debmalya SANYAL ; Indira MAISNAM ; Kaushik BISWAS ; Kaushik PANDIT ; Mainak BANERJEE ; Moutusi RAYCHAUDHURI ; Nilanjan SENGUPTA ; Partha Pratim CHAKRABORTY ; Pradip MUKHOPADHYAY ; Pradip RAYCHAUDHURI ; Pranab Kumar SAHANA ; Rajan PALUI ; Rana BHATTACHARJEE ; Sarmistha MUKHOPADHYAY ; Satinath MUKHOPADHYAY ; Sayantan RAY ; Soumik GOSWAMI ; Subhankar CHOWDHURY ; Subhodip PRAMANIK ; Subir Chandra SWAR ; Sujoy GHOSH ; Sunetra MONDAL ; Tapas Chandra DAS
Annals of Pediatric Endocrinology & Metabolism 2024;29(5):284-307
Rickets, one of the leading causes of bony deformities and short stature, can be calciopenic (inciting event is defective intestinal calcium absorption) or phosphopenic (inciting event is phosphaturia). Early diagnosis and timely treatment of rickets are crucial for correction of the limb deformities. Guidelines exist for nutritional rickets, but the diagnosis and management of the relatively uncommon forms of rickets are complex. This consensus aims to formulate a simplified diagnostic approach for rickets, especially in resource-limited settings. The consensus statement has been formulated by a 29-member committee from the Endocrine Society of Bengal. The process included forming a working group, conducting a literature review, identifying controversies, drafting, and discussion at a consensus meeting. Participants rated their agreement with the clinical practice points, and a 70% consensus was required. Input integration and further review led to the final consensus statements. Children with suspected rickets should initially be examined for distinctive skeletal deformities. The diagnosis of rickets should be confirmed with characteristic radiographic abnormalities. It is advisable to order tests for serum calcium, inorganic phosphorus (Pi), liver function, 25-hydroxyvitamin D (25OHD), parathyroid hormone, creatinine, and potassium in all patients with rickets. In cases of refractory rickets, it is also recommended that assessments be conducted for spot urine calcium, Pi, creatinine, and, blood gas analysis. In children with rickets and metabolic acidosis, tests for glycosuria, uricosuria, aminoaciduria, low molecular weight proteinuria, and albuminuria should be conducted. In children with resistant calciopenic rickets and sufficient serum 25OHD levels, serum 1,25(OH)2D concentration should be tested. 1,25(OH)2 D and fibroblast growth factor 23 estimation is useful for certain forms of phosphopenic rickets.
3.Metformin HCl Oral Preparation Exhibits Anticancer Activity In-vitro in a Human Non-small Cell Lung Tumour Cell Line
Chowdhury Forhadul Karim ; Mohammod Jahidul Islam ; Shamima Abdul Rahman
Malaysian Journal of Medicine and Health Sciences 2023;19(No.3):64-71
Introduction: The most common variety of lung cancer is non–small cell lung cancer (NSCLC) accounting for 84%
of new cases. Surgery, chemotherapy and radiation are the primary treatment option. Metformin has recently been
demonstrated to have an anti-tumour impact on various cancer cells. The goal of this investigation was to determine
the growth inhibitory, antiproliferative, cytotoxic, apoptotic and cell cycle arrest properties of metformin HCl oral
tablets on the A549 lung carcinoma cell line. Methods: The cells were treated with different dosages of an oral preparation of metformin, with untreated cells used as a control. The Trypan Blue Exclusion Assay was used to determine
metformin’s inhibitory and cytotoxic effects. Flow cytometry was used to evaluate apoptosis and cell cycle arrest.
Results: In a dose-dependent manner, metformin HCl was able to reduce the viability of treated cells compared to
the untreated control. Cell proliferation was considerably inhibited in the treated group with the IC50 dose than in the
untreated control group and the IC50 dose showed no cytotoxic effect on L929 cells. Induction of apoptosis and cell
cycle arrest was observed in the IC50 dose-treated group by Flow cytometry analysis and data showed metformin oral
drug causes early apoptosis and a considerable cell increase in the S phase of the cell cycle. Conclusion: Metformin
inhibits cell growth and induces apoptosis and cell cycle arrest in the cell line. A comprehensive proteome examination is required to understand more about the mechanism of action of the oral metformin HCl on cancer cells
4.Conformity evaluation of afinion 2 analyzer maintainability: Compliance practicality for Philippine National Standard PNS ISO 15189:2013 Accreditation
Geraldine B. Dayrit ; Dennis Mok ; Rana Nabulsi ; Naira Eloyan ; Sharfuddin Chowdhury ; Arisina Chung Yee Ma
Acta Medica Philippina 2023;57(11):72-91
Objectives:
The implementation of Philippine National Standard PNS ISO 15189:2013 to support the medical
laboratory to produce competent results is a recognised challenge. It is apparent that the approach of ensuring the equipment availability can be specifically optimised. No known research has focused on exploring on the conduct of conformity evaluation of Afinion 2 Analyzer maintainability for the PNS ISO 15189:2013 accredited medical laboratory. The aim of the current study was to develop a practical tool for the medical laboratory to support the internal audit process by determining the compliance status of Afinion 2 Analyzer maintainability.
Methods
The relevant conformance requirements in Clauses 4 (Management requirements) and 5 (Technical
requirements) of PNS ISO 15189:2013, manufacturer requirements and specific requirements for accreditation from 70/101 (69%) accreditation bodies in 80/249 (32%) countries were identified as specific audit criteria for Afinion 2 Analyzer conformity evaluation checklists for the maintenance and reference equipment.
5.EWSR1 rearranged primary renal myoepithelial carcinoma: a diagnostic conundrum
Nilay NISHITH ; Zachariah CHOWDHURY
Journal of Pathology and Translational Medicine 2023;57(5):284-288
Primary renal myoepithelial carcinoma is an exceedingly rare neoplasm with an aggressive phenotype and Ewing sarcoma breakpoint region 1 (EWSR1) rearrangement in a small fraction of cases. In addition to its rarity, the diagnosis can be challenging for the pathologist due to morphologic heterogeneity, particularly on the biopsy specimen. At times, immunohistochemistry may be indecisive; therefore, molecular studies should be undertaken for clinching the diagnosis. We aim to illustrate a case of primary myoepithelial carcinoma of the kidney with EWSR1-rearrangement in a 67-year-old male patient who presented with right supraclavicular mass, which was clinically diagnosed as carcinoma of an unknown primary. An elaborate immunohistochemical work-up aided by fluorescent in-situ hybridization allowed us to reach a conclusive diagnosis. This unusual case report advocates that one should be aware of the histological mimickers and begin with broad differential diagnoses alongside sporadic ones and then narrow them down with appropriate ancillary studies.
6.Exploration of the anti‑diabetic potential of hydro‑ethanolic leaf extract of Koenigia polystachya L.: an edible wild plant from Northeastern India
Alokali KIBA ; Dipankar SAHA ; Bhrigu Kumar DAS
Laboratory Animal Research 2023;39(3):225-234
Background:
Globally, medicinal plants are used to treat diseases like diabetes. The present study evaluates the possible antioxidant, acute oral toxicity, the in-vitro and in-vivo antidiabetic potential of the hydro-ethanolic leaf extract of Koenigia polystachya (HELeKP) against beta-cell damage in experimentally induced diabetes mellitus. The DPPH (2,2-diphenyl-1-picrylhydrazine), ABTS [2,2′-azino bis-(3-ethylbenzothiazoline-6-sulfonic acid)], H2O2 (Hydrogenperoxide), superoxide radical scavenging activity and NO (Nitric oxide) assay estimated the in-vitro antioxidant assay of HELeKP. The acute oral toxicity study was evaluated per the OECD (Organization for Economic Cooperation and Development) test guidelines 425. Diabetes was stimulated in rats with a single dose of Streptozotocin (STZ), and after confirmation of diabetes, HELeKP was given orally for 21 days. Blood/serum samples were gathered and examined for biochemical changes, while tissue samples were evaluated for histopathological alterations.
Results:
The IC50 value of the HELeKP for all the anti-oxidant assays confirms the free radical scavenging activity. The data on acute oral toxicity revealed that the HELeKP used in the study was comparatively very safe. The outcomes of the in-vivo study suggested that the extract significantly reduced (p < 0.001) the fasting glucose level in STZinduced diabetic rats. Furthermore, the lipid profile level was significantly normalized (p < 0.01, p < 0.001) in diabetic rats. The histopathological observation of the pancreas in HELeKP-treated rats showed significant beta-cell restoration.
Conclusions
Based on the outcomes of this study, the HELeKP-treated rats have significant free radical scavenging and anti-diabetic potential. Therefore, it can be recommended as a beneficial functional vegetable for consumption.
7.Strategies to combat Gram-negative bacterial resistance to conventional antibacterial drugs: a review
Priyanka BHOWMIK ; Barkha MODI ; Parijat ROY ; Antarika CHOWDHURY
Osong Public Health and Research Perspectives 2023;14(5):333-346
The emergence of antimicrobial resistance raises the fear of untreatable diseases. Antimicrobial resistance is a multifaceted and dynamic phenomenon that is the cumulative result of different factors. While Gram-positive pathogens, such as methicillin-resistant Staphylococcus aureus and Clostridium difficile, were previously the most concerning issues in the field of public health, Gram-negative pathogens are now of prime importance. The World Health Organization’s priority list of pathogens mostly includes multidrug-resistant Gram-negative organisms particularly carbapenem-resistant Enterobacterales, carbapenem-resistant Pseudomonas aeruginosa, and extensively drug-resistant Acinetobacter baumannii. The spread of Gram-negative bacterial resistance is a global issue, involving a variety of mechanisms. Several strategies have been proposed to control resistant Gram-negative bacteria, such as the development of antimicrobial auxiliary agents and research into chemical compounds with new modes of action. Another emerging trend is the development of naturally derived antibacterial compounds that aim for targets novel areas, including engineered bacteriophages, probiotics, metal-based antibacterial agents, odilorhabdins, quorum sensing inhibitors, and microbiome-modifying agents. This review focuses on the current status of alternative treatment regimens against multidrugresistant Gram-negative bacteria, aiming to provide a snapshot of the situation and some information on the broader context.
8.Studies on the biodiversity of endophytic fungi from Ruta graveolens and screening for their antimicrobial activities
Pushpa Hanumanthaiah ; Ramesha Alurappa ; Suchetana Saha ; Chandrika Das Chowdhury ; Pallavi Guha ; Pol Robson Hazarika ; Ramesh Thirumalesh Dadamudike Hanumaiah
Malaysian Journal of Microbiology 2023;19(no.4):415-420
Aims:
The main objective of the present study was to study the diversity of endophytic fungi from Ruta graveolens, an important medicinal plant. The alkaloids produced by this plant have been used in many medical applications. The endophytic fungi that inhabit the plants are also recognized as rich sources of secondary metabolites. This study was aimed to isolate, identify and study the diversity of endophytic fungi in R. graveolens and to screen the isolates for their antimicrobial activities.
Methodology and results :
A total of 12 different fungal genera were isolated from R. graveolens collected from various sites in and around Bangalore. The species richness and colonizing frequency of endophytic fungi in this plant are
comparatively less than other plants. This may be due to the secretion of the plant's phytochemicals, as it has antimicrobial activity and more than 120 phytochemicals in it. Screening of antimicrobial activity of all 10 isolates was done by agar well diffusion method, of which 80% of the fungal isolates could produce antimicrobials.
Conclusion, significance and impact of study
To conclude R. graveolens being a good medicinal plant along with its rich source of endophytes and their medicinal properties, can be exploited for the therapeutic applications.
9.Turner syndrome and neurofibromatosis 1: Rare co-existence with important clinical implications
Sunetra Mondal ; Neha Agrawal ; Subhankar Chowdhury
Journal of the ASEAN Federation of Endocrine Societies 2023;38(1):114-119
A 16.5-year-old Indian female presented with secondary amenorrhoea, cubitus valgus, scoliosis and multiple lentigines on the face. Karyotyping revealed mosaic Turner syndrome (TS) with 45, X/46, X iXq. She also had multiple café-au-lait macules and axillary freckles but no neurofibroma and did not fulfil the classic criteria for diagnosis of Neurofibromatosis-1(NF1). Many of her macules were smaller than 15 mm in diameter, which might be due to her hypoestrogenic state. However, exome-sequencing found a pathologic variant consistent with NF1. She was started on daily oral estrogen, and oral progesterone for 10 days every month with close monitoring for neurofibroma and/or glioma expansion. Co-occurrence of NF1 and TS is extremely rare, TS and NF1 can both affect growth and puberty, cause different cutaneous and skeletal deformities, hypertension, vasculopathy and learning disabilities. Our case highlights the need for genetic testing in some cases with NF1 who do not strictly fulfil the NIH diagnostic criteria. We also emphasize the need for close monitoring during therapy with growth hormone, estrogen and progesterone due to the potential risk of tumour expansion in NF1.
Turner syndrome
;
Neurofibromatosis 1
;
NF-1
10.Apalutamide for metastatic castration-sensitive prostate cancer: final analysis of the Asian subpopulation in the TITAN trial.
Byung Ha CHUNG ; Jian HUANG ; Hiroji UEMURA ; Young Deuk CHOI ; Zhang-Qun YE ; Hiroyoshi SUZUKI ; Taek Won KANG ; Da-Lin HE ; Jae Young JOUNG ; Sabine D BROOKMAN-MAY ; Sharon MCCARTHY ; Amitabha BHAUMIK ; Anildeep SINGH ; Suneel MUNDLE ; Simon CHOWDHURY ; Neeraj AGARWAL ; Ding-Wei YE ; Kim N CHI ; Hirotsugu UEMURA
Asian Journal of Andrology 2023;25(6):653-661
The final analysis of the phase 3 Targeted Investigational Treatment Analysis of Novel Anti-androgen (TITAN) trial showed improvement in overall survival (OS) and other efficacy endpoints with apalutamide plus androgen deprivation therapy (ADT) versus ADT alone in patients with metastatic castration-sensitive prostate cancer (mCSPC). As ethnicity and regional differences may affect treatment outcomes in advanced prostate cancer, a post hoc final analysis was conducted to assess the efficacy and safety of apalutamide in the Asian subpopulation. Event-driven endpoints were OS, and time from randomization to initiation of castration resistance, prostate-specific antigen (PSA) progression, and second progression-free survival (PFS2) on first subsequent therapy or death. Efficacy endpoints were assessed using the Kaplan-Meier method and Cox proportional-hazards models without formal statistical testing and adjustment for multiplicity. Participating Asian patients received once-daily apalutamide 240 mg ( n = 111) or placebo ( n = 110) plus ADT. After a median follow-up of 42.5 months and despite crossover of 47 placebo recipients to open-label apalutamide, apalutamide reduced the risk of death by 32% (hazard ratio [HR]: 0.68; 95% confidence interval [CI]: 0.42-1.13), risk of castration resistance by 69% (HR: 0.31; 95% CI: 0.21-0.46), PSA progression by 79% (HR: 0.21; 95% CI: 0.13-0.35) and PFS2 by 24% (HR: 0.76; 95% CI: 0.44-1.29) relative to placebo. The outcomes were comparable between subgroups with low- and high-volume disease at baseline. No new safety issues were identified. Apalutamide provides valuable clinical benefits to Asian patients with mCSPC, with an efficacy and safety profile consistent with that in the overall patient population.
Male
;
Humans
;
Prostatic Neoplasms/pathology*
;
Androgen Antagonists/therapeutic use*
;
Prostate-Specific Antigen
;
Castration
;
Prostatic Neoplasms, Castration-Resistant/drug therapy*


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