Publications by authors named "Rajakumar S"

In this research article, response surface methodology (RSM) based optimization of three production parameters namely temperature, time and amount of starter culture of Vechur cow milk yoghurt (VCMY) on the basis of sensory evaluation responses comparing cross-bred cow milk yoghurt (CCMY) as the control is reported. The optimized values of production parameters were 2.15 per cent rate of inoculation, 42°C incubation temperature and 4 h incubation period.

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Background: Graphene oxide (GO) coatings have emerged as a promising method to enhance materials' surface properties and mechanical performance. In the context of endodontic files, the efficacy of these instruments is critically dependent on the properties of their outermost layer. Surface treatments and coatings can substantially improve these characteristics.

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Article Synopsis
  • - Periodontitis is caused by harmful bacteria, and traditional treatments often rely on mechanical cleaning and chemical agents, which can lead to side effects and antibiotic resistance. Researchers are considering herbal remedies like Tulsi for their effectiveness and fewer adverse effects.
  • - This study investigates the antibacterial power of Tulsi's ethanolic extract against a significant periodontal bacterium, using chlorhexidine, a common treatment, as a comparison.
  • - The results showed that Tulsi's extract was effective, especially at higher concentrations (25 mg/mL produced a 17 mm zone of inhibition, and 50 mg/mL produced a 25 mm), although chlorhexidine still had a greater effect (32 mm zone).
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Groundwater recharging and thus renewable groundwater supplies will experience considerable changes due to climate change. The present investigation focussed to evaluate the susceptibility of subsurface water in rapid developing textile industrial region of Southern India. To determine the aquifer's susceptibility, the DRASTIC-LU Remote sensing and GIS based vulnerability model was applied and the results were compared with human activity risk (HAR) analysis to ensure the water borne disease on human health.

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Introduction Utilization is the actual attendance of people at oral healthcare facilities to receive treatment. This study aimed to determine the perceived oral health care needs and barriers to utilizing dental services among rural populations. Materials and methods A cross-sectional survey using a questionnaire was designed to identify the perceived oral health care needs and obstacles to accessing dental facilities and their utility among rural populations.

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Introduction: Forensic dentistry integrates interdisciplinary scientific knowledge to produce accurate and reliable forensic statements. Anthropometry, essential since its introduction by Alphonse Bertillon in 1882, describes human body shapes and has significant forensic applications. This study focuses on sexual dimorphism, phenotypic differences between males and females, using lateral cephalometric measurements to determine sex in children aged 10-12 years from the Chengalpattu population.

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We investigated the association between dietary intake and metabolic risk factors in children and adolescents within a semi-rural Malaysian community. Using an interviewer-led questionnaire, we surveyed 623 participants aged 7-18 from the South East Asia Community Observatory (SEACO). Anthropometric and blood pressure data were collected from all participants, while a subset (n = 162) provided blood samples for biomarker analysis, including fasting blood glucose (FBG), total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C).

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Article Synopsis
  • Hemophilia is an x-linked recessive bleeding disorder predominantly affecting males due to a deficiency in clotting factors, with the most common types being Hemophilia A and B.
  • Prophylactic treatment offers significant clinical benefits over on-demand therapy, such as reducing bleeding frequency and preventing joint damage but poses challenges related to regular painful infusions that may lead to non-adherence.
  • This systematic review aims to address the limited research on adherence among adult hemophilia patients by searching various electronic databases and assessing study quality using established guidelines.
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  • - Malaysia is easing COVID-19 restrictions as vaccination rates rise, with 86.1% receiving the first dose and 84.3% the second by April 2023; however, booster dose uptake remains low at 68.6% for the third dose and only 1.5% for the fourth.
  • - A survey of 395 participants revealed that 69.4% accepted the booster dose, with smartphone usage, living area, and education level significantly influencing acceptance; surprisingly, 65.9% were willing to get boosted despite past side effects.
  • - The main factor driving acceptance of the booster dose was the perceived need for more clinical studies, with 58.2% of respondents emphasizing this
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Monkeypox, a viral zoonotic disease resembling smallpox, has emerged as a significant national epidemic primarily in Africa. Nevertheless, the recent global dissemination of this pathogen has engendered apprehension regarding its capacity to metamorphose into a sweeping pandemic. To effectively combat this menace, a multi-epitope vaccine has been meticulously engineered with the specific aim of targeting the cell envelope protein of Monkeypox virus (MPXV), thereby stimulating a potent immunological response while mitigating untoward effects.

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As an emerging trend, non-pharmacological behavior management has gained immense research interest. By utilizing a bibliometric approach, this investigation aims to review the state of the non-pharmacological behavior management techniques research in pediatric dentistry. A Scopus search was done on non-pharmacological behavior management in pediatric dentistry, including literature from 1900 to 2022, using "Cited Reference Search" on 4/2/2022.

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The performance of the starter culture is a critical factor that decides the quality of fermented milk. Dahi is a fermented milk product popular in India made using a mixed starter culture of lactic acid bacteria comprising acid and flavour producers. The prevalence of bacteriophages in the dairy environment can critically affect the activity of these starter cultures resulting in starter failure.

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Objectives: This study aimed to translate the Medication Use Questionnaire into a Malay version, adapt it to Malaysia's culture, and verify its reliability among Malaysia's older adults.

Methods: Methodological approaches were used to translate, validate, and modify the questionnaire. The subjects were older adults aged ≥ 60 years in primary care settings in Penang, Malaysia.

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Lung cancer is the most devastating cause of death among all cancers worldwide, and non-small cell lung cancer (NSCLC) accounts for 80% of all the lung cancer cases. Beyond common genetic research and epigenomic studies, the extraordinary investigations of non-coding RNAs have provided insights into the molecular basis of cancer. Existing evidence from various cancer models highlights that the regulation of non-coding RNAs is crucial and that their deregulation may be a common reason for the development and progression of cancer, and competition of cancer therapeutics.

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Background: Vaccine-induced thrombotic thrombocytopenia (VITT) post SARS-CoV-2 vaccination is characterized by thrombocytopenia and severe thrombosis. Platelet function during patient recovery in the medium-/long-term has not been investigated fully. Here, we undertook a 3-month study, assessing the recovery of a VITT patient and assessing platelet morphology, granule content and dense-granule release at two distinct time points during recovery.

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Acute lymphoblastic leukemia (ALL) dissemination to the central nervous system (CNS) is a challenging clinical problem whose underlying mechanisms are poorly understood. Here, we show that primary human ALL samples injected into the femora of immunodeficient mice migrate to the skull and vertebral bone marrow and provoke bone lesions that enable passage into the subarachnoid space. Treatment of leukemia xenografted mice with a biologic antagonist of receptor activator of nuclear factor κB ligand (RANKL) blocks this entry route.

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Vechur cow is an indigenous cattle breed of Kerala listed as a critical breed by FAO. This research communication is related to the hypothesis that the changes occurring in microbiological quality parameters of Vechur cow milk dahi (VCMD) during storage will be superior to other milk and reflective of the traditional concepts of therapeutic properties attributed to Vechur milk. Microbiological quality of the VCMD stored at room (30 ± 1°C) and refrigerated (4 ± 1°C) temperatures in terms of total viable, coliform, yeast and mold and lactococcal counts is reported in this study, together with titratable acidity and pH.

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 Progressive supranuclear palsy (PSP) is a neurodegenerative disorder which comes under Parkinsonism plus syndrome. As this spectrum of disease has many overlapping clinical as well as imaging findings, some quantitative parameters like magnetic resonance Parkinsonism index and midbrain/pons ratio are useful to differentiate PSP from other PD patients.  The study aimed to detect sensitivity and specificity of magnetic resonance Parkinsonism index in differentiating PSP from PD.

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Skeletal morbidities continue to cause acute and long-term burdens for B-ALL patients underscoring the need to identify the mechanisms underlying these processes and to develop effective therapies. Our recent findings demonstrated that B-ALL cells isolated at patient diagnosis can cause bone destruction and have identified the receptor activator of nuclear factor κ-B (RANK-RANKL) ligand axis as a critical effector of these effects.

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Removal of fluoride (F) was performed using a novel bacterium isolated from F contaminated soil collected from Pappireddipatti block of Dharmapuri District in Tamil Nadu, India. Impact of changing variables for the removal of F from synthetic medium at different concentrations of carbon and nitrogen sources (0.5, 1.

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Although most children survive B cell acute lymphoblastic leukemia (B-ALL), they frequently experience long-term, treatment-related health problems, including osteopenia and osteonecrosis. Because some children present with fractures at ALL diagnosis, we considered the possibility that leukemic B cells contribute directly to bone pathology. To identify potential mechanisms of B-ALL-driven bone destruction, we examined the ; ; triple mutant (TM) mice and ; double mutant (DM) mouse models of spontaneous B-ALL.

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The genes involved in the methionine pathway are closely associated with phospholipid homeostasis in yeast. The impact of the deletion of methionine (MET) transcriptional activators (MET31, MET32 and MET4) in lipid homeostasis is studied. Our lipid profiling data showed that aberrant phospholipid and neutral lipid accumulation occurred in met31∆ and met4∆ strains with low Met.

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The endoplasmic reticulum (ER) stress potentially activates the unfolded protein response (UPR) and ER-associated protein degradation (ERAD) as quality-control mechanisms. During ERAD process, the ERAD adaptor protein Ubx2 serves as a bridging factor and transports the misfolded proteins from the ER to the cytosol for subsequent ubiquitylation and proteasomal degradation. Cadmium (Cd) is a toxic metal that initiates ER stress and has an impact on lipid homeostasis and this study focuses on the synergistic impact of Cd exposure and ERAD (using ubx2∆ strain).

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Crystal modulators play a significant role in the formation of calcium oxalate stone disease. When renal cells are subjected to oxalate stress, the loss in cell integrity leads to exposure of multiple proteins that assist and/or inhibit crystal attachment and retention. Contact between oxalate and calcium oxalate with urothelium proves fatal to cells as a result of reactive oxygen species generation and onset of oxidative stress.

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