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In Silico Analysis of Actin Gene as a Candidate for DNA Non-Halal Detection Base on Real-Time PCR Seagames Waluyo; Jekmal Malau; Muhareva Raekiansyah; Edwin Yulian; Imam Hardiman
Indonesian Journal of Halal Research Vol 3, No 2 (2021): August
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/ijhar.v3i2.12123

Actin genes are genes that are common in organisms, and their expression is constitutive. These genes are used for gene normalization and internal control of DNA extraction, but the actin gene is not widely used for halal certification tests. Bioinformatic studies help to analyze the experiment through in silico more deeply before the experiment is carried out in laboratory, making it more efficient and time effective. uMelt is an analysis to predict the melting curve of target amplification in real-time PCR. Real-time PCR has been widely used for screening and detection of pork content in a product. This research aimed to explore actin gene as a candidate for testing pork using qPCR. The study was carried out in two main stages, namely alignment of the DNA sequence and analysis of the melting curve using the uMelt approach. The results showed a set of actin genes containing conserved regions that can be used as degenerate primers with different family-type coverages. Melting curve prediction with uMelt shows differences in tm peaks so as the types of samples can be easily identified. The use of bioinformatic applications such as uMelt helps in the simulation of predicting the melting curve to increase the precision of the analysis.

Deteksi dan Kuantifikasi Cemaran Babi pada Sampel Olahan Daging Menggunakan Real-time PCR Seagames Waluyo; Jekmal Malau; Muhareva Raekiansyah; Edwin Yulian; Imam Hardiman
Al-Kauniyah: Jurnal Biologi Vol 16, No 1 (2023): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v16i1.20203

AbstrakMetode pengujian cemaran babi menjadi faktor penting dalam sertifikasi produk halal. Metode yang cepat dan robust diperlukan untuk deteksi dan kuantifikasi cemaran babi. Metode Real-time PCR atau dikenal dengan istilah quantitative PCR (qPCR) merupakan metode alternatif untuk deteksi dan kuantifikasi cemaran babi berdasarkan residu keberadaan DNAnya pada sampel olahan pangan. Metode ekstraksi DNA dan kit amplifikasi yang tahan terhadap inhibitor menjadi kunci keberhasilan penggunaan qPCR untuk pendeteksian dan kuantifikasi cemaran babi. Pendeteksian cemaran DNA dengan probe qPCR digunakan karena mempunyai kelebihan tahan terhadap inhibitor, cepat, spesifik, dan multipel target. Penelitian ini bertujuan untuk mendeteksi dan menguantifikasi cemaran DNA babi menggunakan metode ekstraksi DNA secara cepat dan qPCR. Tahapan penelitian ini adalah ekstraksi DNA, amplifikasi, deteksi, dan kuantifikasi DNA babi. Sampel berasal dari produk olahan pangan, seperti bakso, sosis, daging burger, siomay, kuah daging, dan daging isi roti. Hasil penelitian menunjukkan bahwa terdapat cemaran babi pada sampel bakso, daging burger, dan kuah bakso. Hasil yang didapatkan menunjukkan bakso memiliki persentase kontaminasi sejumlah 25%, sedangkan kuah daging sejumlah 12,5%. Hasil penelitian ini dapat direkomendasikan untuk laboratorium penguji makanan sebagai metode deteksi cemaran babi dalam produk pangan secara cepat dan akurat.AbstractPork contamination testing method is an important factor in halal product certification. A fast and robust method is needed for the detection and quantification of pig contamination. Real-time PCR method or commonly known as quantitative PCR (qPCR) is an alternative method for the detection and quantification of pork contamination based on the pig’s DNA residual presence in processed food samples. DNA extraction method and inhibitor-resistant amplification kit are the keys of successful qPCR implementation for the detection and quantification of pig contamination. Detection of DNA contamination with qPCR probe is used because it has some advantages, such as resistant to inhibitors, fast, specific, and multiple targets. This research aimed to detect and quantify pig’s DNA contamination using rapid DNA extraction method and qPCR. The stages of this research were pig’s DNA extraction, amplification, detection, and quantification. The samples taken from processed food products, such as meatballs, sausage, burgers’ meat, dumplings, meat broth, and meat filled in the bread. The results showed that there was pork contamination in the samples of meatballs, burgers’ meat, and meat broth. The results showed that the meatballs had a contamination percentage of 25%, while the meat broth had a contamination percentage of 12.5%. The results of this study can be a recommendation for food testing laboratories as a method of detecting the pork contamination in food products quickly and accurately.

Deteksi dan Kuantifikasi Cemaran Babi pada Sampel Olahan Daging Menggunakan Real-time PCR Seagames Waluyo; Jekmal Malau; Muhareva Raekiansyah; Edwin Yulian; Imam Hardiman
Al-Kauniyah: Jurnal Biologi Vol 16, No 1 (2023): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v16i1.20203

AbstrakMetode pengujian cemaran babi menjadi faktor penting dalam sertifikasi produk halal. Metode yang cepat dan robust diperlukan untuk deteksi dan kuantifikasi cemaran babi. Metode Real-time PCR atau dikenal dengan istilah quantitative PCR (qPCR) merupakan metode alternatif untuk deteksi dan kuantifikasi cemaran babi berdasarkan residu keberadaan DNAnya pada sampel olahan pangan. Metode ekstraksi DNA dan kit amplifikasi yang tahan terhadap inhibitor menjadi kunci keberhasilan penggunaan qPCR untuk pendeteksian dan kuantifikasi cemaran babi. Pendeteksian cemaran DNA dengan probe qPCR digunakan karena mempunyai kelebihan tahan terhadap inhibitor, cepat, spesifik, dan multipel target. Penelitian ini bertujuan untuk mendeteksi dan menguantifikasi cemaran DNA babi menggunakan metode ekstraksi DNA secara cepat dan qPCR. Tahapan penelitian ini adalah ekstraksi DNA, amplifikasi, deteksi, dan kuantifikasi DNA babi. Sampel berasal dari produk olahan pangan, seperti bakso, sosis, daging burger, siomay, kuah daging, dan daging isi roti. Hasil penelitian menunjukkan bahwa terdapat cemaran babi pada sampel bakso, daging burger, dan kuah bakso. Hasil yang didapatkan menunjukkan bakso memiliki persentase kontaminasi sejumlah 25%, sedangkan kuah daging sejumlah 12,5%. Hasil penelitian ini dapat direkomendasikan untuk laboratorium penguji makanan sebagai metode deteksi cemaran babi dalam produk pangan secara cepat dan akurat.AbstractPork contamination testing method is an important factor in halal product certification. A fast and robust method is needed for the detection and quantification of pig contamination. Real-time PCR method or commonly known as quantitative PCR (qPCR) is an alternative method for the detection and quantification of pork contamination based on the pig’s DNA residual presence in processed food samples. DNA extraction method and inhibitor-resistant amplification kit are the keys of successful qPCR implementation for the detection and quantification of pig contamination. Detection of DNA contamination with qPCR probe is used because it has some advantages, such as resistant to inhibitors, fast, specific, and multiple targets. This research aimed to detect and quantify pig’s DNA contamination using rapid DNA extraction method and qPCR. The stages of this research were pig’s DNA extraction, amplification, detection, and quantification. The samples taken from processed food products, such as meatballs, sausage, burgers’ meat, dumplings, meat broth, and meat filled in the bread. The results showed that there was pork contamination in the samples of meatballs, burgers’ meat, and meat broth. The results showed that the meatballs had a contamination percentage of 25%, while the meat broth had a contamination percentage of 12.5%. The results of this study can be a recommendation for food testing laboratories as a method of detecting the pork contamination in food products quickly and accurately.

Pengaruh Variasi Gen CYP2D6 Terhadap Terapi Tamoxifen Pada Pasien Kanker Payudara di Kawasan Asia Septi, Annisa Frastica; Zahra, Aliya Azkia; Malau, Jekmal
Jurnal Kesehatan Vol 13 No 1 (2024): Jurnal Kesehatan
Publisher : STIKES Ngesti Waluyo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46815/jk.v13i1.251

reast cancer is one of the most prevalent cancers in society, especially among women. Tamoxifen is often used as a first-line therapy for breast cancer and reduces the risk of recurrence in ER+ breast cancer. However, the response to treatment varies due to genetic variability resulting from polymorphisms in the DNA encoding drug-metabolism enzymes, including the CYP2D6 gene. This literature review aimed to evaluate the impact of CYP2D6 gene variants on the effectiveness of tamoxifen in breast cancer treatment. A literature search was conducted through PubMed, Google Scholar, and BMC Cancer using relevant keywords. The selected articles were no more than ten years old (2014-2024), with criteria for inclusion and exclusion. The review of articles from various research journals found that in the Asian region, the CYP2D6 gene variant allele *10 was most frequently seen, resulting in Intermediate Metabolism (IM) in tamoxifen therapy. Patients with IM metabolism tend to have suboptimal therapeutic responses and require tamoxifen dose adjustments.Conversely, patients with Normal Metabolism (NM/EM) tend to have better therapeutic responses. Genetic variability in the CYP2D6 gene affects the activity of the CYP2D6 enzyme, which functions to convert tamoxifen into its active form, Endoxifen. Some individuals may have low (Poor Metabolizer), Intermediate (Intermediate Metabolizer), Normal (Extensive Metabolizer), or even high (Ultra-rapid Metabolizer) enzyme activity. Therefore, adjusting tamoxifen therapy based on patient genetic information is essential for optimal treatment, especially in Asia, where the CYP2D6 gene variant allele *10 is most commonly found, resulting in IM metabolism

The Influence of CYP2C19 Gene Polymorphism on Selective Serotonin Reuptake Inhibitors In Patients with Major Depressive Disorder: A Pharmacogenetic Prospecting Approach Urbaningrum, Lestari Mahardika; Hermosaningtyas, Anastasia Aliesa; Kasasiah, Ahsanal; Rahmasari, Ratika; Raekiansyah, Muhareva; Hartanto, Adrian; Malau, Jekmal
Journal of Biomedicine and Translational Research Vol 10, No 1 (2024): April 2024
Publisher : Faculty of Medicine, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbtr.v10i1.20338

Major Depressive Disorder (MDD) is a chronic disorder characterized by at least a two-week-long major depressive episode. Selective Serotonin Reuptake Inhibitors (SSRIs) remain the primary prescribed antidepressants to treat MDD. However, SSRIs themselves are found to be ineffective in some individuals or may even lead to adverse side effects. These variable responses have been linked to the drug being metabolized by CYP2C19, which exhibited various polymorphisms. Understanding how gene polymorphism affects drug metabolism is essential since these insights can revolutionize clinical practice, allowing for more precise and personalized treatment approaches that optimize efficacy while minimizing side effects. This issue is particularly pertinent in Indonesia, where research in this area lags behind the pressing need for such studies. In this review, the impact of CYP2C19 polymorphism on the effectiveness of SSRI class drugs, namely citalopram, escitalopram, and sertraline, are explored. Nine relevant articles related to the topic have been studied in Japan, China, Turkey, Russia, Scandinavia, and Australia. The results concluded that CYP2C19 polymorphism can influence the metabolism of SSRIs (citalopram, escitalopram, and sertraline) due to its variability in enzyme activities, which includes both loss-of-function (*2, *3) and gain-of-function (*17) polymorphisms. Consequently, these genetic variations can lead to significant changes in drug efficacy and safety changes within individual patients. This review sheds light on the importance of considering genetic factors when prescribing SSRIs for MDD in the future treatment strategies.

Genetic Studies On The GHSR and IGF1R and Their Relationship With Stunting: A Systematic Literature Review Indratno, Saarah Hamidah Asmara; Malau, Jekmal; Kasasiah, Ahsanal
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5731

Stunting, also known as short stature, is a condition that occurs in children where children grow too short for their age. It can be influenced by several external and internal factors. This study explored various databases including Pubmed, Science Direct, Sage Journal, Springer Link, with keywords: "stunting OR short stature AND GHSR AND IGF1R AND genetic". There are 114 articles that match the PICOTS elements to be further reviewed using the PRISMA diagram. In this review article, 10 research articles published in 2011-2024 were used as sources of information. This review article discusses that internal factors of stunting can be caused by genetic factors influenced by growth genes, one of which is GHSR and IGF1R. Whole genome sequencing revealed potential genes involved in the growth pathway that showed an association between genetic variation in GHSR and IGF with the risk of the body's production or response to growth hormone that causes delayed child growth. The evidence highlights the possibility that these putative genetic markers could offer more effective treatment by focusing on the pathophysiology associated with development stunting. Due to lack of genetic studies on stunting genes carried out in Asian nations, genetic testing has not been used in clinical practice as a routine evaluation in the current national implementation, especially in Indonesia

Effect of Mycotoxin Exposure on Stunting and Growth Impairment in Children: A Systematic Literature Review Rahma, Anisa Aula; Malau, Jekmal; Kasasiah, Ahsanal
Jurnal Ners Vol. 9 No. 1 (2025): JANUARI 2025
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jn.v9i1.29273

Stunting is a critical public health concern in low- and middle-income countries (LMICs), is traditionally attributed to malnutrition and environmental factors. Emerging evidence suggests that mycotoxin exposure is a risk factor. This systematic review, conducted using PRISMA guidelines, investigates the association between mycotoxin exposure and childhood stunting/growth impairment. Twelve relevant studies (predominantly cross-sectional and prospective cohorts) are identified, focusing on children aged 0-5 years in Africa and Asia. Aflatoxins (AFB1, AFM1) and fumonisins (UFB1) are the primary mycotoxins analyzed, measured through biomarkers in biological samples (blood, urine, breast milk). Aflatoxin exposure consistently demonstrates a negative impact on child growth, as evidenced by decreasing anthropometric z-scores (LAZ, WAZ, HAZ). Additionally, it significantly increases the risk of stunting and underweight. Potential mechanisms include disruption of the IGF signaling pathway, oxidative stress, impaired protein synthesis, intestinal barrier dysfunction, and nutrient malabsorption. Fumonisins, both independently and in co-exposure with aflatoxins, are also linked to growth impairment. This review highlights the detrimental effect of mycotoxin exposure on child growth. While aflatoxin exposure appears to be a major contributor, fumonisins warrant further investigation. Elucidating the underlying molecular mechanisms and exploring interactions with other risk factors are crucial next steps. Addressing mycotoxin-related stunting necessitates a multidisciplinary approach.

Gut Microbiota Types between Well-Grown and Stunted Children: A Systematic Review Astika, Eriyanti; Kasasiah, Ahsanal; Malau, Jekmal; Fikri, Al Mukhlas
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5871

Stunting, one of the malnutrition in the prenatal period up to the first two years of life and often exacerbated by recurrent gastrointestinal infections after birth. This study explores from various databases including Pubmed, Scopus, Science Direct, Sage Journal, Springer Link, with keywords: "stunting, gut microbiota, toddler". In this study, 10 open access articles published in 2016-2024 were used as sources of information using PRISMA 2020 guideline. It was found that the presence of gut microbiota plays a role in stunting. Gastrointestinal infections have specific mechanisms that can lead to impaired growth and postnatal growth. Deficiency of non-pathogenic gut microbiota is considered to be the main cause. Changes in gut bacterial composition in children under five are associated with increased gastrointestinal frequency, which in turn leads to chronic growth disorders.

Influence of LEAP2 (Liver Expressed Antimicrobial Peptide-2) and Ghrelin Binding to GHSR Gene Receptor as Factors Obesity Incidence: A Literature Review Hitopik, Asman; Kasasiah, Ahsanal; Malau, Jekmal
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i3.5834

Obesity is a serious issue in global health, which requires a more comprehensive understanding for the development of effective therapies. This study explores the role of Liver-Expressed Antimicrobial Peptide 2 (LEAP2) and its interaction with Ghrelin in regulating Growth Hormone Secretagogue Receptor (GHSR) as a potential obesity event. This method used in this review is a systematic literature analysis. The results obtained show that LEAP2, originally known as an antimicrobial, plays a significant role in metabolic regulation and body weight regulation. LEAP2 acts as a Ghrelin antagonist, reduces orexigenic effects and inhibits food intake, and exerts positive effects in tackling the effects of obesity such as hyperlipidemia and inflammation. The study also highlighted the potential of LEAP2 as a therapeutic target in obesity treatment, with palmitoylation modification showing increased stability and effectiveness of LEAP2. However, further understanding and clinical trial studies are needed to validate the preclinical findings and evaluate the long-term effects of LEAP2 regulation on human body weight and metabolic health, thus providing a basis for exploring potential clinical applications in future anti-obesity drug development

Formulasi dan Uji Antikoksidan Pada Sediaan Lip Balm Dari Ekstrak Kulit Buah Apel Fuji (Malus Domestica (Suckow) Borkh) Abbas, Zuyyinna Alya; Zahra, Aliya Azkia; Malau, Jekmal
JURNAL PERTANIAN Vol 15, No 3 (2024): Jurnal Ilmiah Respati
Publisher : Universitas Respati Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52643/jir.v15i3.4417

Lip balm adalah kosmetik serbaguna yang menawarkan perlindungan dan hidrasi pada bibir, sekaligus meningkatkan kesehatannya secara keseluruhan. Kulit apel Fuji mengandung berbagai macam fitokimia, seperti antioksidan seperti phloridzin, asam klorogenat, katekin, dan quercetin. Quercetin memainkan peran penting dalam meningkatkan kadar antioksidan dan mengurangi kemungkinan berbagai penyakit. Penelitian ini menyelidiki apakah kulit apel dapat digunakan untuk membuat pelembab bibir antioksidan dengan khasiat yang diinginkan dan iritasi yang minimal. Bahan-bahan yang digunakan untuk membuat lip balm kulit apel Fuji termasuk minyak kakao, minyak bunga matahari, vaseline album, lilin lebah, gliserin, dan esensi apel. Lip balm mengandung konsentrasi yang berbeda yaitu 1%, 3%, dan 5%. Pemeriksaan sediaan meliputi evaluasi homogenitas, titik leleh, pH, daya sebar, kesukaan, dan iritasi. Formulasi lip balm dengan ekstrak kulit apel fuji telah lulus uji kualitas fisik dan uji iritasi, yang menunjukkan bahwa lip balm tersebut telah memenuhi parameter yang ditentukan. Namun, aktivitas antioksidan bahan tersebut jauh lebih rendah dibandingkan dengan ekstrak kulit apel yang dianggap sebagai antioksidan kuat (26,90 ppm) dan vitamin C yang juga sangat kuat (5,34 ppm). Pada formula 2, ekstrak 1% sebesar 8491,93 ppm, pada formula 3, 3% sebesar 8474,58 ppm, dan pada formula 4, 5% sebesar 8446,44 ppm. Kata kunci: Antioksidan, Kulit Buah Apel Fuji, Lip Balm

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