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The Relationship of the Gene Allele Apolipoprotein E with Height in Down Syndrome 21

Sun, 01 Jan 2023 00:00:00 GMT

Title: The Relationship of the Gene Allele Apolipoprotein E with Height in Down Syndrome 21 Authors: Meinapuri, Malinda; Amir, Arni; Chundrayetti, Eva; Efrida, Efrida; Susmiati, Susmiati Abstract: Background: Apolipoprotein E (APOE) is a form of polymorphic protein located on the long arm of chromosome 19 at position 13.2 (19q13.2), translated into three alleles of the gene, namely normal allele 3 and dysfunctional allele 2 and 4. Patients with Down's Syndrome Trisomy 21 may have different allele frequencies and combinations of APOE gene genotypes with controls, which can result in decreased cognitive function and inhibition of bone growth. This study aims to analyze the relationship of the Apolipoprotein E Gene Allele with the height of patients with Down Syndrome Trisomy 21. Methods: This research is a cross sectional study with a comparative cross-sectional study design. Results: The sample used was the result of DNA extraction of patients with Down's Syndrome Trisomy 21 as many as 33 samples and 33 controls stored in the Biomedical Laboratory, Faculty of Medicine, Andalas University, Padang, Indonesia. The next step is to examine the APOE gene polymorphisms using PCR and sequencing techniques. The results showed that there was a significant relationship between the APOE gene allele and height (p=0.009). Conclusion: This study concluded that there was a significant relationship between the APOE gene allele and the height of patients with Down Syndrome Trisomy 21. Key words: Down's Syndrome, Apolipoprotein E, Height.

Hydrocephalus Mice Model: Choroid Plexus Aquaporin-1 Dynamics Following Cerebrospinal Fluid Drainage

Sun, 01 Jan 2023 00:00:00 GMT

Title: Hydrocephalus Mice Model: Choroid Plexus Aquaporin-1 Dynamics Following Cerebrospinal Fluid Drainage Authors: Baktir, Yusuf; Arifin Parenrengi, Muhammad; Suryaningtyas, Wihasto Abstract: Background: Aquaporins (AQPs) are a family of membrane proteins that act as channels for water, facilitating its movement across the plasma membrane of cells. Aquaporin1 (AQP1), located in the choroid plexus, is thought to be involved in the process of cerebrospinal fluid (CSF) production. Objective: The objective of this study is to examine the impact of hydrocephalus and cerebrospinal fluid (CSF) drainage on the expression of AQP1 in a mice model of hydrocephalus. Material and Methods: Laboratory experimental study with six groups. Five test groups, one control group, and a rat model of hydrocephalus caused by kaolin were used in the experiment. Results: Hydrocephalus in mice model induced by kaolin, and CSF drainage was performed on the 7th and 14th days group. Immunohistochemical analysis was conducted to examine the presence of AQP1 in the choroid plexus using microscopes. The findings revealed a noticeable decrease in AQP1 expression levels in the choroid plexus, which exhibited a semi-quantitative decline in correlation with the duration of hydrocephalus (p = 0.01). This decrease was observed when comparing the normal group with the hydrocephalus groups on the 7th, 14th, and 21st days following induction. However, after cerebrospinal fluid (CSF) drainage, there was a significant increase in AQP1 expression (p < 0.05). Conclusions: This study shows the significant role of AQP1 in CSF production by comparing of AQP1 expression in the choroid plexus of hydrocephalus mice model, with and without CSF drainage. AQP1 expression experiences downregulation in hydrocephalus mice model and upregulation after CSF drainage. Key words: Aquaporin 1, AQP1, Choroid plexus, Hydrocephalus

The Investigation of The Network Pharmacology and Mechanism of Action of Centella Asiatica Extract on The Atopic Dermatitis Model

Sun, 01 Jan 2023 00:00:00 GMT

Title: The Investigation of The Network Pharmacology and Mechanism of Action of Centella Asiatica Extract on The Atopic Dermatitis Model Authors: Tungsukruthai, Sucharat; Pochairach, Runtikan; Krajarng, Aungkana Abstract: Background: Atopic dermatitis (AD) is a chronic relapsing inflammatory skin condition which has a negative impact on children health. The well-known medicinal plant Centella asiatica extract (CE) is used in herbal skin care products to produce various pharmacological effects in dermatology. However, the molecular target of CE in suppressing inflammatory is largely unknown. Objective: the aim of this study was to examine anti-inflammatory properties and network pharmacology of CE in lipopolysaccharide (LPS)- induced AD in vitro model. Method: RAW264.7 cells were pre-treated with CE and then were stimulated with LPS and then were investigated cell viability, NO production, and the levels of pro-inflammatory mediators. In addition, the Search Tool for Retrieval of Interacting Genes (STRING), SwissTargetPrediction and the Kyoto Encyclopedia of Genes and Genomes (KEGG) were used to construct the defined mechanism of action and network pharmacology. Results: CE showed the potent inhibitory effects on LPS-induced NO. In addition, CE significantly suppressed the expression of iNOS and COX-2, as well as the production of IL-2, IL-6, IL-10, and TNF- α. Furthermore, the network pharmacological analysis revealed the potential role of CE in biological processes such as regulating JAK/STATs pathway and inhibiting proinflammatory cytokines both of which were linked to AD pathogenesis. Conclusion: Our findings confirm our hypothesis that CE could be developed as a therapeutic therapy for atopic dermatitis due to its pharmacological action and signaling mechanism in the modulation of allergic skin inflammation. Key words: Atopic dermatitis, Centella asiatica, Network pharmacology, Skin inflammation

Standardization Study of Trunks and Branches of Xanthoceras Sorbifolia Bunge

Sun, 01 Jan 2023 00:00:00 GMT

Title: Standardization Study of Trunks and Branches of Xanthoceras Sorbifolia Bunge Authors: Qirigeer, Qirigeer; Bagenna, Bagenna; Laxinamujila, Laxinamujila; Malchinkhuu, Munkhzol; Sodnomtseren, Purevsuren Abstract: Introduction: Although there is a wide range of studies on phytochemistry and pharmacology, there currently needs to be a standard quality control method or index for assessing the components of X. sorbifolium Bunge to ensure quality. Objectives: This study aimed to determine some quality parameters of the standardization of trunks and branches of Xanthoceras sorbifolia Bunge. Methods: The cellular diagnostic structures of trunks and branches of the plant were defined by “Olympus” light microscopy. Biologically active compounds were identified using TLC and HPLC, and the main biologically active compounds’ contents were determined by HPLC methods. Some quality parameters of trunks and branches of X. sorbifolium Bunge were determined by Chinese Pharmacopoeia methods. Results: Microstructure of trunk and branch of the X. sorbifolia Bunge was defined. Some quality parameters of trunks and branches of X. sorbifolia Bunge collected from seven locations in Inner Mongolia were defined as: moisture 4.8-6.1%, total ash 5.57-7.3%, acid-insoluble ash 1.3-2.7%, alcohol-soluble extractive 8.97- 11.63%. The fingerprints of TLC to reveal epicatechin and HPLC to reveal epicatechin, dihydromyricetin, dihydroquercetin, myricetin, quercetin, and naringenin were defined. Some flavonoid contents in trunks and branches of X. sorbifolia Bunge collected from seven locations in Inner Mongolia were determined according to the developed and validated method as: epicatechin 6.39-11.687 mg/g, dihydroquercetin 1.02-1.833 mg/g, and myricetin 0.02-2.693 mg/g. Conclusion: The standardization criteria for the trunk and branches of X. sorbifolia Bunge were defined. Quality parameters and contents of epicatechin, dihydroquercetin, and myricetin were different in Xanthoceras sorbifolia Bunge collected from seven locations in Inner Mongolia. Key words: Epicatechin, Dihydroquercetin, Myricetin, Mongolian medicine