Displaying publications 1 - 20 of 152 in total

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  1. Fulltext Comparative study on attitudes and psychological problems of mothers towards their children with developmental disability
    Shobana M, Saravanan C
    East Asian Arch Psychiatry, 2014 Mar;24(1):16-22.
    PMID: 24676483
    Objective: Parents’ positive attitudes and psychological wellbeing play an important role in the development of the children with developmental disability. This study aimed to measure the prevalence of psychological problems among mothers of children with autism disorder, intellectual disability, and Down syndrome. The second aim was to assess the differences in mothers’ attitudes and psychological problems among their children with intellectual disability, autism disorder, and Down syndrome. The third aim was to identify whether negative attitude was a predictor of psychological problems in these mothers.
    Methods: In this study, 112 mothers of children having mild and moderate levels of autism disorder, Down syndrome, and intellectual disability were assessed using the Parental Attitude Scale and General Health Questionnaire–28.
    Results: Overall, mothers of children with intellectual disability were found to have the most negative attitude towards their child. Mothers of children with autism disorder exhibited higher scores on somatic symptoms, anxiety, and social dysfunction when compared with their counterparts with Down syndrome and intellectual disability. Negative attitude was a significant predictor of psychological problems.
    Conclusion: Parental attitudes and psychological problems would vary among mothers of children with different types of developmental disability.
    Key words: Autistic disorder; Down syndrome; Intellectual disability; Mothers
  2. Fulltext Psychological problems and psychosocial predictors of cigarette smoking behavior among undergraduate students in Malaysia
    Saravanan C, Heidhy I
    Asian Pac J Cancer Prev, 2014;15(18):7629-34.
    PMID: 25292039
    BACKGROUND: Cigarette smokers have their own motivation and justification to smoke. For example, smoking reduces their stress or enhances their pleasure. This study aimed to identify the (a) prevalence of cigarette smokers among undergraduates in Malaysia, (b) gender differences in nicotine dependence among current smokers, (c) differences in psychological problems (depression, anxiety and stress) based on the status of smoking cigarettes (current, former and non-smokers) and (d) extent to which precipitating factors (tension reduction, addiction, automatism, handling, social interaction, pleasure, and stimulation) predict the smoking behavior among current smokers.

    MATERIALS AND METHODS: In this study 780 undergraduate students participated from a private university in Kuala Lumpur and Selangor state in Malaysia. The Depression, Stress and Anxiety Scale, Modified Reason for Smoking Scale and Fagerstrom Nicotine Dependence Test were used to measure psychological problems, predictors of smoking behavior and nicotine dependency among current smokers.

    RESULTS: The results showed that 14.7%(n=106) of the students were smokers. Current smokers exhibited more psychological problems (depression, anxiety and stress) compared to former and non-smokers. Addiction, tension reduction, pleasure and automatism were predictors of smoking behavior among the current smoking students. Step wise regression analysis showed that smoking behavior was highly predicted by nicotine dependency or addiction. Smoking students were motivated to smoke cigarettes as they believed that it reduced their tension and enhance pleasure.

    CONCLUSIONS: Hence, there is a need for health promotion and anti-tobacco prevention as cigarette smokers experience more psychological problems. Nicotine dependency or addition was one of the major causes for smoking behavior among the student population in Malaysia.
  3. Fulltext Medical students' experience of and reaction to stress: the role of depression and anxiety
    Saravanan C, Wilks R
    ScientificWorldJournal, 2014;2014:737382.
    PMID: 24688425 DOI: 10.1155/2014/737382
    Medical school is recognized as a stressful environment that often has a negative effect on students' academic performance, physical health, and psychosocial well-being. Previous studies have not identified differences between depressed and nondepressed and anxious and nonanxious medical students' experiences of stress or their reactions to stressors. The present study aimed to identify the prevalence of depression and anxiety among a sample of 358 medical students attending a private university in Malaysia and to examine differences according to participants' gender, year of study, and stage of training (preclinical and clinical). Additionally, this study examined the extent to which stress predicts depression and anxiety, differences between depressed and nondepressed medical students' experiences of and reactions to stressors, and differences between anxious and nonanxious medical students' experiences of and reactions to stressors.
  4. A Review on Phytochemistry, Pharmacological Action, Ethanobotanical Uses and Nutritional Potential of Kedrostis foetidissima (Jacq.) Cogn
    Pavithra K, Saravanan G
    Cardiovasc Hematol Agents Med Chem, 2020;18(1):5-20.
    PMID: 32048980 DOI: 10.2174/1871525718666200212095353
    Nature is an amazing source for food, shelter, clothing and medicine. An impressive number of modern drugs are isolated from many sources like plants, animals and microbes. The development of natural products from traditional medicines is of great importance to society. Modern concepts and methodologies with abundant clinical studies, unique diversity of chemical structures and biological activities aid the modern drug discovery process. Kedrostis foetidissima (Jacq.) Cogn., a traditional medicinal plant of the Cucurbitaceae family, is found in India, Sri Lanka, Ethiopia and Western Malaysia. Almost all parts of the plant are used in traditional systems of medicines and reported having medicinal properties in both in vitro and in vivo studies. In the last few years, extensive research work had been carried out using extracts and isolated phytoconstituents from Kedrostis foetidissima to confirm its pharmacology and biological activities. Many scientific reports show that crude extracts and extensive numbers of phytochemical constituents isolated from Kedrostis foetidissima have activities like antimicrobial, antioxidant, anticancer, gastroprotective, anti-inflammatory and various other important medicinal properties. The therapeutic properties of the plants are mainly attributed to the existence of phytoconstituents like phenols, alkaloids, flavonoids, tannins, terpenoids and steroids. This comprehensive review in various aspects gave a brief overview of phytoconstituents, nutritional values and medicinal property of the plant and might attract the researchers to explore its medicinal activity by discovering novel biologically active compounds that can serve as a lead compound in pharmaceutical and food industry.
  5. Fulltext The effectiveness of psychoeducation and systematic desensitization to reduce test anxiety among first-year pharmacy students
    Rajiah K, Saravanan C
    Am J Pharm Educ, 2014 Nov 15;78(9):163.
    PMID: 25525278 DOI: 10.5688/ajpe789163
    To analyze the effect of psychological intervention on reducing performance anxiety and the consequences of the intervention on first-year pharmacy students.
  6. Fulltext A randomized control study of psychological intervention to reduce anxiety, amotivation and psychological distress among medical students
    Saravanan C, Kingston R
    J Res Med Sci, 2014 May;19(5):391-7.
    PMID: 25097619
    BACKGROUND: Test anxiety aggravates psychological distress and reduces the motivation among graduate students. This study aimed to identify psychological intervention for test anxiety, which reduces the level of psychological distress, amotivation and increases the intrinsic and extrinsic motivation among medical students.
    MATERIALS AND METHODS: Westside test anxiety scale, Kessler Perceived Stress Scale and Academic Motivation Scale were used to measure test anxiety, psychological distress and motivation on 436 1(st) year medical students. Out of 436 students, 74 students who exhibited moderate to high test anxiety were randomly divided into either experimental or waiting list group. In this true randomized experimental study, 32 participants from the intervention group received five sessions of psychological intervention consist of psychoeducation, relaxation therapy and systematic desensitization. Thirty-three students from waiting list received one session of advice and suggestions.
    RESULTS: After received psychological intervention participants from the intervention group experienced less anxiety, psychological distress, and amotivation (P < 0.01) and high intrinsic and extrinsic motivation (P < 0.01) in the postassessment compared with their preassessment scores.
    CONCLUSION: Overall psychological intervention is effective to reduce anxiety scores and its related variables.
    KEYWORDS: Anxiety; motivation; psychological distress
  7. Fulltext Growing endoprosthesis in management of bone tumours in Malaysia
    Saravanan S, Vivek AS
    Med J Malaysia, 2007 Dec;62(5):418-9.
    PMID: 18705481 MyJurnal
    This is to report on the use of growing endoprosthesis, also known as lengthening prosthesis in the management of four patients in the paedriatic age group in the Orthopaedic Oncolgy Unit at University Malaya Medical Centre. These are custom made prosthesis, designed and made in India based on measured roentrograms. The ages of these patients vary from 6 to 13 years old. These are cases of Osteosarcoma and Ewing's sarcoma around the knee. This is the first time these custom made prosthesis have ever been used in Malaysia. We feel that this is a feasible option for limb salvage in the treatment of primary bone tumours in growing children.
  8. Cannon's disease: clinical and diagnostic implications: a case report
    Ram S, Siar CH
    Dent Update, 2004 Nov;31(9):557-9.
    PMID: 15612463
    Cannon's disease or white sponge naevus is a relatively rare genetically determined skin disorder. It is inherited as an autosomal dominant trait that displays a high degree of penetrance and expressivity. This article describes cases of Cannon's disease in a mother and her son.
  9. Fulltext The prevalence and inter-relationship of negative body image perception, depression and susceptibility to eating disorders among female medical undergraduate students
    Manaf NA, Saravanan C, Zuhrah B
    J Clin Diagn Res, 2016 Mar;10(3):VC01-VC04.
    PMID: 27134977 DOI: 10.7860/JCDR/2016/16678.7341
    Introduction: Female students are thought to be more negatively impacted by body image ideals and often more susceptible to various eating related disorders compared to men. A previous study using a sample of female students in Malaysia did not identify whether the increase in susceptibility to eating disorders can be explained by the level of body image acceptance.
    Aim: To identify the prevalence of depression and susceptibility to eating disorders among a sample of 206 female students in one of the private universities in Malaysia and explore the relationship between depression, body image and susceptibility to eating disorders. In addition, this study aimed to determine whether depression is a mediator between body image and susceptibility to eating disorders among female college students.
    Materials and Methods: The Body Image Acceptance and Action Questionnaire were used to assess body image acceptance, the Patient Health Questionnaire to measure depression and the Eating Attitude Test- 26 was used to assess susceptibility to eating disorders.
    Results: The results showed that 65.5% (n=135) of the students were depressed and 6.3% (n=13) were susceptible to eating disorders. There was a significant positive relationship between depression and eating disorders and a negative relationship between body image and depression as well as between body image and eating disorder. Further, the regression model showed that depression was partially mediating the effect of body image on eating disorders.
    Conclusion: Body image and depression contribute to eating disorders and treating depression could reduce susceptibility to eating disorders.
    Keywords: Unhealthy body perception, Psychological problems, Relationship between body image and eating disorder
  10. The effects of brief individual cognitive behavioural therapy for depression and homesickness among international students in Malaysia
    Saravanan C, Alias A, Mohamad M
    J Affect Disord, 2017 10 01;220:108-116.
    PMID: 28618312 DOI: 10.1016/j.jad.2017.05.037
    BACKGROUND: Students who go to other countries for higher education face various psychological problems, particularly homesickness and depression. The objectives of this study were to: (a) identify differences between students who did and did not receive brief individual cognitive behavioural therapy (CBT) for depression to reduce homesickness; (b) identify whether brief individual CBT for depression reduces the level of homesickness in students between pre-, post- and follow-up assessment; and (c) compare the scores of students experiencing only homesickness and those experiencing both homesickness and depression.

    METHOD: The sample consisted of 520 first-year undergraduate international students. The experimental group contained students who were diagnosed with depression and homesickness and received seven sessions of brief individual CBT for depression to reduce homesickness. The control group contained students who were diagnosed with depression and homesickness and received one session of advice and suggestions. The comparison group contained students who experienced only homesickness and did not receive any interventions. The study used the comparison group to determine if an interaction effect existed between students experiencing only homesickness and students experiencing both homesickness and depression.

    RESULTS: Students who received brief individual CBT displayed a significant reduction in their homesickness and depression scores compared to the scores of students in the control group. Students who experienced only homesickness exhibited a significant reduction in the scores on homesickness in the post-assessment compared to the control group's post-assessment homesickness scores.

    LIMITATION: The results of this study cannot be generalized as data were collected from three universities in Malaysia. The follow-up assessment was conducted six months after the post-assessment, which also limits generalizability beyond six months.

    CONCLUSION: Overall, homesickness is considered a normal reaction. Brief individual CBT for depression is effective in reducing homesickness and depression among international students.

  11. Genome-based analyses reveal the presence of 12 heterotypic synonyms in the genus Streptomyces and emended descriptions of Streptomyces bottropensis, Streptomyces celluloflavus, Streptomyces fulvissimus, Streptomyces glaucescens, Streptomyces murinus, and Streptomyces variegatus
    Madhaiyan M, Saravanan VS, See-Too WS
    Int J Syst Evol Microbiol, 2020 Jun;70(6):3924-3929.
    PMID: 32441614 DOI: 10.1099/ijsem.0.004217
    Phylogenetic analysis based on 16S rRNA gene sequences of the genus Streptomyces showed the presence of six distinguishable clusters, with 100 % sequence similarity values among strains in each cluster; thus they shared almost the same evolutionary distance. This result corroborated well with the outcome of core gene (orthologous gene clusters) based genome phylogeny analysis of 190 genomes including the Streptomyces species in those six clusters. These preeminent results led to an investigation of genome-based indices such as digital DNA-DNA hybridization (dDDH), average nucleotide identity (ANI) and average amino acid identity (AAI) for the strains in those six clusters. Certain strains recorded genomic indices well above the threshold values (70 %, 95-96 % and >95 % for dDDH, ANI and AAI, respectively) determined for species affiliation, suggesting only one type strain belongs to described species and the other(s) may need to be reduced in taxa to a later heterotypic synonym. To conclude, the results of comprehensive analyses based on phylogenetic and genomic indices suggest that the following six reclassifications are proposed: Streptomyces flavovariabilis as a later heterotypic synonym of Streptomyces variegatus; Streptomyces griseofuscus as a later heterotypic synonym of Streptomyces murinus; Streptomyces kasugaensis as a later heterotypic synonym of Streptomyces celluloflavus; Streptomyces luridiscabiei as a later heterotypic synonym of Streptomyces fulvissimus; Streptomyces pharetrae as a later heterotypic synonym of Streptomyces glaucescens; and Streptomyces stelliscabiei as a later heterotypic synonym of Streptomyces bottropensis.
  12. Eco-friendly drying techniques: a comparison of solar, biomass, and hybrid dryers
    Prabhu N, Saravanan D, Kumarasamy S
    Environ Sci Pollut Res Int, 2023 Sep;30(42):95086-95105.
    PMID: 37582893 DOI: 10.1007/s11356-023-28807-z
    Solar energy provides desired thermal energy for diverse applications, including industrial heating, domestic cooking, power generation, desalination, and agri-food preservation. Despite extensive research on solar drying from the scientific community, there are limited practical applications for small-scale use. This review attempts to analyze the design features of three specific types of dryers for food drying applications: solar evacuated tube dryers, biomass dryers, and hybrid solar dryers. The thermal performance of the three dryers is evaluated in terms of drying time, moisture removal, and temperature attained during drying. The review also assesses the prospects of solar dryers, highlighting the need for further research into innovative designs and advanced drying capabilities. The study provides valuable information for enhancing dryer performance with various integrated solutions.
  13. Fulltext Criminality recognition using machine learning on Malay language tweets
    Nurul Hashimah Ahamed Hassain Malim, Sagadevan, Saravanan, Nurul Izzati Ridzuwan
    Pertanika Journal of Science & Technology, 2019;27(4):1803-1820.
    MyJurnal
    A large scale of investigation had been carried out to predict the personality, or in precise, the behaviour of online users through user-generated texts, such as Tweets and status messages. Nevertheless, only a handful of machine learning (ML) studies have applied the personality model to assess criminality behaviour, particularly within the context of Malay social network messages. Based on the concept of sentiment valence, this study annotated a list of Malay Tweets that might be subjected to crime or illicit messages from the stance of Psychoticism trait. Consequently, the supervised-based text classification method was conducted by using Naïve Bayes (NB), Sequential Minimal Optimisation (SMO), and Decision Tree (DT) on Tweets using several features determined via Chi Square (x2). The analyses outcomes signified that SMO outperformed other classifiers insignificantly by achieving 92.85% of accuracy. Based on x2, several swear terms, such as bontot, melancap, and kote, displayed significant correlation with Psychoticism Tweets due to the nature of the trait that has been subjected to criminality behaviour, for instance, aggressive and antisocial attributes. The findings illustrate the possibilities to adapt several personality aspects in order to enhance the effectiveness in detecting illicit social network messages.
  14. Fulltext Bridging skill gaps and creating future ready accounting and finance graduates: an exploratory study
    Muthaiyah S, Phang K, Sembakutti S
    F1000Res, 2021;10:892.
    PMID: 35035890 DOI: 10.12688/f1000research.72880.1
    Background: Changing trends in the use of technology have become an impelling force to be reckoned with for the accounting and finance profession. The curriculum offered in higher learning institutions must be quickly revamped so that students who complete a bachelor's degree are digitally competent upon graduation. With US$55.3 billion invested in FinTech in 2019 alone and more than 72% of accounting jobs being automated, graduates must be trained on digital skills to be future proof. Accounting and finance graduates must be made competent in skills that are related to digital content such as blockchain technology, information assets and autonomous peer to peer systems, to name a few. Methods: We used a three-phase approach: 1) careful mapping of digital topics taught within the course structure offered at these institutions; 2) review of current best practices and digital learning tools for digital inclusion which was ascertained from literature; and 3) 80 experts in a think tank group were interviewed on antecedents, awareness and problems in relation to digital inclusion within the curriculum to validate our research objective. Results: Eleven key tools for inclusion in the curriculum were discussed with experts and then mapped to current curriculum offered at institutions. We discovered that less than 5% of these were being taught. In total, 78% of experts agreed that digital content is inevitable, 90% agreed that digital inclusion based on tools that were discussed will yield great benefits for students, and lastly 75% agreed that giving digital exposure to students must be standard practice. Conclusions: The response from experts confirms that digital inclusion is imperative, but instructors themselves lacked the know-how of emerging technologies. Only the curriculum of institutions with approved bachelor's programs were included in this research. In our future work we hope to include all institutions and professional bodies as well.
  15. Aluminium and radiation cross-linked carboxymethyl sago pulp beads for colon targeted delivery
    Thenapakiam S, Kumar DG, Pushpamalar J, Saravanan M
    Carbohydr Polym, 2013 Apr 15;94(1):356-63.
    PMID: 23544549 DOI: 10.1016/j.carbpol.2013.01.004
    The carboxymethyl sago pulp (CMSP) with a degree of substitution of 0.4% was synthesized from sago waste. The CMSP beads with an average diameter of 3.1-4.8 mm were formed by aluminium chloride gelation as well as further cross-linked by irradiation. To evaluate colon targeted release, a model drug, 5-aminosalicylic acid (5-ASA) was encapsulated in CMSP beads. Fourier-transform infrared spectroscopy and X-ray diffraction studies indicated intact and amorphous nature of entrapped drug. A pH dependent drug release was observed, and about 90% of the drug was released only at pH 7.4 over 9 h. Irradiated beads were resisted the drug release in an acidic environment at a higher extent than non-irradiated beads. The drug release from 6% (w/w) of 5-ASA loaded bead followed zero order, whereas, 15 and 22% loaded beads followed first order. The release exponent n value suggests non-fickian transport of 5-ASA from the beads.
  16. Fulltext Management of wooden foreign bodies in craniofacial region
    Loganathan K, Chacko JP, Saravanan BS, Vaithilingam B
    J Oral Biol Craniofac Res, 2012 Sep-Dec;2(3):210-2.
    PMID: 25737868 DOI: 10.1016/j.jobcr.2012.10.011
    Even though variety of foreign bodies has been reported in a various locations in the craniofacial region, wooden foreign bodies are uncommon. Appropriate management of wooden foreign bodies is considered essential because of their infectious complications and difficulty in radiographic localization. Even though literature is replete with articles on management of foreign bodies in the craniofacial region, specific management of wooden foreign bodies are rarely reported. The purpose of this article is to report two cases of deeply placed wooden foreign body and a protocol for managing them in the maxillofacial region.
  17. Fulltext Appointment waiting times and education level influence the quality of bowel preparation in adult patients undergoing colonoscopy
    Chan WK, Saravanan A, Manikam J, Goh KL, Mahadeva S
    BMC Gastroenterol, 2011;11:86.
    PMID: 21798022 DOI: 10.1186/1471-230X-11-86
    Risk factors for poor bowel preparation are recognized to be independent of the type of bowel preparation method used. Patient and administrative factors influencing bowel preparation are known to vary in different healthcare systems.
  18. Development of gelatin microspheres loaded with diclofenac sodium for intra-articular administration
    Saravanan M, Bhaskar K, Maharajan G, Pillai KS
    J Drug Target, 2011 Feb;19(2):96-103.
    PMID: 20380621 DOI: 10.3109/10611861003733979
    We have previously reported on the targeting of diclofenac sodium in joint inflammation using gelatin magnetic microspheres. To overcome complications in the administration of magnetic microspheres and achieve higher targeting efficiency, the present work focuses on the formulation of gelatin microspheres for intra-articular administration. Drug-loaded microspheres were prepared by the emulsification/cross-linking method, characterized by drug loading, size distribution, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC), X-ray diffraction (XRD), gas chromatography, and in vitro release studies. The targeting efficiency of microspheres was studied in vivo in rabbits. The microspheres showed drug loading of 9.8, 18.3, and 26.7% w/w with an average size range of 37-46 µm, depending upon the drug-polymer ratio. They were spherical in nature and free from surface drug as evidenced by the SEM photographs. FT-IR, DSC, and XRD revealed the absence of drug-polymer interaction and amorphous nature of entrapped drug. Gas chromatography confirms the absences of residual glutaraldehyde. The formulated microspheres could prolong the drug release up to 30 days in vitro. About 81.2 and 43.7% of administered drug in the microspheres were recovered from the target joint after 1 and 7 days of postintra-articular injection, respectively, revealing good targeting efficiency.
  19. Fulltext Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity
    Leong KH, Chu HY, Ibrahim S, Saravanan P
    Beilstein J Nanotechnol, 2015;6:428-37.
    PMID: 25821683 DOI: 10.3762/bjnano.6.43
    Freely assembled palladium nanoparticles (Pd NPs) on titania (TiO2) nano photocatalysts were successfully synthesized through a photodeposition method using natural sunlight. This synthesized heterogeneous photocatalyst (Pd/TiO2) was characterized through field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), BET surface area, UV-vis diffuse reflectance spectra (UV-DRS), Raman and photoluminescence (PL) analyses. The simple and smart synthesis anchored well the deposition with controlled Pd NPs size ranging between 17 and 29 nm onto the surface of TiO2. Thus, it gives the characteristic for Pd NPs to absorb light in the visible region obtained through localized surface plasmon resonance (LSPRs). Apparently, the photocatalytic activity of the prepared photocatalysts was evaluated by degrading the endocrine disrupting compound (EDC) amoxicillin (AMX) excited under an artificial visible light source. In the preliminary run, almost complete degradation (97.5%) was achieved in 5 h with 0.5 wt % Pd loading and the degradation followed pseudo-first-order kinetics. The reusability trend proved the photostability of the prepared photocatalysts. Hence, the study provides a new insight about the modification of TiO2 with noble metals in order to enhance the absorption in the visible-light region for superior photocatalytic performance.
  20. Fulltext Influence of Ispaghula and Zein Coating on Ibuprofen-Loaded Alginate Beads Prepared by Vibration Technology: Physicochemical Characterization and Release Studies
    Lyn Heng JJ, Teng JH, Saravanan M, Pushpamalar J
    Sci Pharm, 2018 Jun 05;86(2).
    PMID: 29874858 DOI: 10.3390/scipharm86020024
    The purpose behind the work was to fabricate alginate beads with better drug loading and extended drug release. Ispaghula was used to enhance the drug loading while zein was employed to extend the drug release. Ibuprofen was employed as a model drug in this study. Ibuprofen-loaded alginate beads with and without ispaghula were prepared using vibration technology and coated with zein. The beads prepared with alginate alone were shown to have loading and entrapment efficiencies of 35% and 70% w/w, respectively. Addition of ispaghula in alginate showed a significant increase (p < 0.05) in the drug loading (42% w/w) and entrapment efficiency (84% w/w). Fourier-transform infrared spectroscopy confirmed the presence of ispaghula and zein coating in the alginate beads as well as the ibuprofen loading. Scanning electron microscopy revealed better spherical geometry in the beads with ispaghula. The surface morphology of the uncoated beads was rough due to crystalline and surface drug. The zein coating has produced a smoother surface and particle adhesion. Differential scanning calorimetry has shown a reduction in drug crystallinity. Alginate beads extended the drug release for 4 h and the presence of zein extended the release for 6 h.
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