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INDONESIA
Universa Medicina
Published by Universitas Trisakti
ISSN : 19073062     EISSN : 24072230     DOI : -
Core Subject : Health, Science,
Health Professions Immunology & microbiology Medicine & Pharmacology Public Health
Universa Medicina (univ.med) is a four-monthly medical journal that publishes new research findings on a wide variety of topics of importance to biomedical science and clinical practice. Universa Medicina Online contains both the current issue and an online archive that can be accessed through browsing, advanced searching, or collections by disease or topic
Arjuna Subject : -
Articles 14 Documents
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Search results for , issue "Vol. 43 No. 2 (2024)" : 14 Documents clear
Molecular characterization of proteolytic bacteria associated with Malaria vectors: Anopheles sundaicus and Anopheles vagus Senjarini, Kartika; Labes, Antje; Wathon, Syubbanul; Oktarianti, Rike; Raras, Tri Yudani Mardining; Ardyah, Naura Paramitha Cindy; Agustin, Dita Paramytha; Ainiyah, Durotun; Utami, Diah Ayu
Universa Medicina Vol. 43 No. 2 (2024)
Publisher : Faculty of Medicine, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2024.v43.202-212

Abstract

BACKGROUNDAnopheles (An.) sp. transmits Plasmodium parasites that cause malaria. In its life cycle in the mosquito’s body, Plasmodium passes through 2 mosquito organs, namely the salivary glands and midgut. The bacterial community (symbiont bacteria) in these organs has been known to influence and/or inhibit the development of the Plasmodium life cycle by producing specific proteases. This research aims to isolate and characterize symbiotic bacteria with proteolytic activity from 2 important malaria vectors in Indonesia: An. sundaicus and An. vagus. METHODSA total of 183 bacterial originating from the salivary glands and midgut were successfully isolated. Initial screening was carried out based on morphological differences, followed by purification of the selected isolates to obtain single colonies. The selected isolates were then subjected to an initial proteolytic ability test using skim milk agar media. Only isolates with proteolytic activity were further characterized with the 16SrDNA molecular marker. The isolates were pabs5 from the salivary glands and pabs3 from the midgut of An. vagus, while pdbs3 and ecbs4 were isolates from the salivary glands and midgut of An. sundaicus. RESULTSMorphological and molecular characterization showed that both pabs5 and pabs3 isolates were Pseudomonas(Ps.) aeruginosa, while ecbs4 was Enterobacter cloacae and pdbs3 was Pantoea dispersa. These species werefirst discovered in Anopheles vagus and Anopheles sundaicus. CONCLUSIONThe ability of Ps. aeruginosa and Pantoea dispersa to produce proteases indicated their potential role in the exploration of new strategies to control mosquito vectors that transmit pathogens.
Comparative efficacy of topical 10% versus 5% tranexamic acid in treatment of women with melasma: a double-blind randomized controlled trial Mawu, Ferra Olivia; Kapantow, Marlyn Grace; Pandaleke, Herry E. J.; Cahyadi, Alexandro Ivan; Togelang, Lidya; Tampi, Joan Alexandra; Christopher, Paulus Mario
Universa Medicina Vol. 43 No. 2 (2024)
Publisher : Faculty of Medicine, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2024.v43.213-219

Abstract

BackgroundMelasma is a highly prevalent chronic pigmentary disorder. The pathogenesis is unknown but melasma often occurs in photo-exposed areas, e.g., cheeks, upper lip, chin, and forehead. Tranexamic acid (TA), a plasmin inhibitor, aids in the inhibition of UV-induced plasmin activity and melanogenesis, making it a favorable therapeutic option for melasma. Tranexamic acid may be administered through various routes, e.g., topical. This study aimed to compare the efficacy of topical 10% versus 5% TA in women with melasma. MethodsThis double-blind randomized controlled trial included 16 females with epidermal type melasma who were randomized into two groups to receive either topical 10% TA (n = 8) or 5% TA (n = 8) applied twice daily for eight weeks. Prior to intervention and at 8 weeks after intervention, the intensity and extension of melasma were assessed based on melasma area and severity index (MASI) score and pigmentation score. ResultsMean MASI and pigmentation scores in both treatment groups were similar at base-line (p>0.05). The reduction in MASI and pigmentation scores in the topical 10% TA and 5% TA groups was similar and statistically not significant after 4 and 8 weeks of treatment (p>0.05). There were no drug-related adverse reactions or complications. ConclusionThis study demonstrated that topical 10% TA and 5% TA were effective in treating women with melasma. The utilization of topical 5% TA for melasma is a promising alternative therapeutic option without the need to increase the concentration of the formulation.
Screening for antibacterial activity of Cissampelos pareira L. root extract: an in-vitro study Girma, Abayeneh
Universa Medicina Vol. 43 No. 2 (2024)
Publisher : Faculty of Medicine, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2024.v43.220-228

Abstract

BackgroundThe recurrence of antibacterial infections after antibiotic treatment necessitates the investigation of alternative therapies against uropathogens. Cissampelos pareira is an Ethiopian medicinal plant that has been used for centuries by traditional healers to treat various diseases. The plant is selected on the basis of its traditional use in treating urinary tract infections by the local community. The objective of this study was to determine traditionally used anti-uropathogenic properties of C. pareira root extracts. Methods C. pareira plant roots collected from Pawe Woreda were shade-dried, powdered, and extracted using chloroform, hexane, acetone, methanol, and ethanol, respectively. The antibacterial activities with different concentrations of the crude extracts were determined using the disc diffusion assay. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the crude extracts were determined using a two-fold broth dilution method. ResultsThe antibacterial activities of the root extracts against tested organisms as shown by inhibition zone diameters ranged from 7.0±0.1 to 20.8±1.0 mm. The highest inhibition was recorded from the ethanol extract while the lowest was from the chloroform extract.  The MIC and MBC values ranged from 12.5 to 50 µg/mL and 25 to 100 µg/mL, respectively. Ethanolic and methanolic C. pareira root extracts showed the presence of antibacterial compounds (alkaloids, flavonoids, tannins, terpenoids and steroids). ConclusionThis study showed that C. pareira root serves as a potential source for developing new antibacterial drugs against bacteriuria. However, nontoxicity evaluation is recommended for the use of herbals as therapeutic agents in pharmacy.
Classification of diabetic retinopathy using ensemble convolutional neural network architectures Hendrawan, Kevin; Handayani, Ariesanti Tri; Andayani, Ari; Titiek, Ernawati; Gumelar, Agustinus Bimo
Universa Medicina Vol. 43 No. 2 (2024)
Publisher : Faculty of Medicine, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2024.v43.188-194

Abstract

Background Diabetic retinopathy (DR) constitutes a primary cause of blindness across all age groups. Ophthalmologists examine fundus images (FI) to detect and classify stages of DR. Development of deep learning can help clinicians to attain a larger volume in screening and diagnosing diabetic retinopathy, thereby decreasing the burden of visual impairment caused by DR. This study aimed to classify DR using ensemble convolutional neural networks (CNN) architectures. Methods We used data from the Indian Diabetic Retinopathy Image Dataset which consist of typical diabetic retinopathy lesions at pixel level. The dataset contains typical diabetic retinopathy structures as well as normal retinal structures and is divided into three parts: segmentation, classification, and location. There are 516 original color fundus images in the classification used as training set (413 images) and testing set (103 images). We used ensemble CNN architectures to classify diabetic retinopathy as no DR, mild non-proliferative DR (NPDR), moderate NPDR, severe NPDR and proliferative DR (PDR) based on fundus image. Results In this study we successfully created a model with ensemble CNNs to detect DR based on fundus images with area-under-the-curve, sensitivity, and specificity of 0.88, 0.89, and 0.90, respectively, which is on par with the most modern methods. Conclusion Based on the results, this model performs quite well in early detection of diabetic retinopathy and can be used to develop a more accurate model for detecting and classifying diabetic retinopathy. This model can also be used in assisting mass screening at lower cost without reducing diagnostic effectiveness.

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