Rattus Norvegicus Strain Research Articles

The Effects of Traditional Asian Diet on Metabolism, Gut Microbiota, and Liver Tissue in NASH Rats

Traditional Asian Diets (AD) in rural areas have a significant risk of mortality due to cirrhosis and hepatocellular carcinoma as nonalcoholic fatty liver disease (NAFLD). This study aims to determine the relationship between AD and liver cancer cases using rat experimental animals Rattus norvegicus strain Wistar. The measured variables include metabolic parameters, gut microbiota profile, and liver histology. This study used 14 rats in two groups: Chow Diet (7 rats to CD) and AD (7 rats to AD), and were given the respective diets for 12 weeks. Enzyme-linked immunosorbent assay (ELISA) methods are used to analyze liver enzymes, lipid profiles, and blood sugar levels. The analysis of gut microbiota used variable region-specific 16S rRNA gene and V3-V4. Biopsy stained with Hematoxylin Eosin was used to study the histology of the liver. Moreover, it was analyzed utilizing NAS (NAFLD Activity Score). The result of this study indicated that reduce body weight the rats treated with AD significant different than treated with CD. Firmicutes, Lactobacillus reuteri, Prevotellaceae bacterium, Romboutsia ilealis, and Bacteroidota in AD greater than CD. Alzheimer's disease had notably higher levels of alkaline phosphatase compared to those diagnosed with Crohn's disease on individual diagnosis. Differences in total bilirubin, alanine transaminase, aspartate transaminase, blood sugar, total cholesterol, high-density lipoprotein, low-density lipoprotein, and triglycerides were not significant. The NAS analysis indicated that the two groups comprised rats lacking non-alcoholic fatty liver disease. Despite the high caloric content of the Asian diet, it did not lead to significant changes in metabolic parameters and liver histology related to non-alcoholic steatohepatitis. This behavior can be ascribed to the advantageous influence of the gut microbiota.

Anti-inflammatory effectiveness of Peperomia pellucida (L.) Kunth in rats induced with periodontitis

BackgroundPeriodontitis, marked by deep periodontal pocket depth (PPD), facilitates bacterial colonization and inflammation, necessitating adjunctive therapies. Although 0.2 % chlorhexidine (CHX) mouthwash is effective, its side effects have led to the search for alternative treatments. Peperomia pellucida (L.) Kunth, known as Pepper Elder, is a traditional medicinal plant with potential as an adjunctive herbal therapy for periodontitis. ObjectiveThis study aimed to investigate the anti-inflammatory efficacy of Peperomia pellucida extract in rats with induced periodontitis. MethodsA post-test control group design was used in this laboratory experimental study. Four groups of Wistar strain Rattus norvegicus rats were utilized: a Pristine group (without periodontitis), a negative control group (induced periodontitis only), a positive control group (induced periodontitis and administered 0.2 % CHX), and an experimental group (induced periodontitis and administered 2.5 μL of Pepper Elder extract). Each treatment group received daily administration for one week. PPD measurements were taken on days 0, 3, 5, and 7. Blood serum was collected on day 7 for ELISA to measure IL-1β, TNF-α, IL-10, and IL-13 levels. Statistical analysis was performed using the Kruskal-Wallis test with a post hoc LSD and Mann-Whitney test. ResultsThe extract-treated rats showed a decrease in PPD, with significant differences between the extract group and the negative control group (p < 0.05). TNF-α levels in the extract group differed significantly from the negative control group (p < 0.05) but not from the Pristine and positive control groups. IL-1β levels differed significantly only from the negative control group. IL-10 levels were significantly different from both the Pristine and negative control groups, while IL-13 levels differed significantly only from the negative control group. ConclusionPeperomia pellucida (L.) Kunth extract exhibits anti-inflammatory effects in rats with induced periodontitis.

HOW CASSIA ALATA L AFFECTS BLOOD GLUCOSE LEVELS IN DIABETES MELLITUS PATIENTS?

Candle bush (Cassia alata L.) are plants that are rich in antioxidants. There have been many studies that discuss the efficacy of Candle bush (Cassia alata L.) in skin diseases, but there is still less research that discusses the potential of Candle bush leaves as antidiabetics. Therefore, researchers want to test the effectiveness of Candle bush leaves (Cassia alata L.) in improving blood glucose levels (antidiabetic) using experimental animals (Rattus norvegicus strain wistar) induced with Streptozotosin (STZ). Candle bush leaf extract (Cassia alata L.) was made with maceration method using ethanol 70% solution. Experimental animals were divided into 6 groups. Group 1,2, and 3 are the control group, Group 4,5, and 6 are the groups that are given the extract with different doses each. This study proves that extract of Candle bush leaf (Cassia alata L.) can improve blood glucose levels of the experimental animals (Rattus norvegicus strain wistar).

Effect of Multiple Types of High-fat Diet Induction on Gut Microbiota Profile and Butyrate Levels on NAFLD Rat Model

Dysbiosis, marked by a decline in Firmicutes (such as Clostridium spp.) and a rise in Proteobacteria (such as Escherichia coli), is recognized as a pathway linked to the progression of non-alcoholic fatty liver disease (NAFLD). High-fat food may influence the development of NAFLD. This study investigates the effect of different high-fat diets on gut microbiota composition and butyrate levels in a rat model. Four groups of Rattus norvegicus strain Wistar (n=27) were fed specific diets for 12 weeks: normal diet (ND, n=7), high-fat diet (HFD, n=6), western diet (WD, n=7), and high-fat-high-fructose diet (HFHFD, n=7). Stools were cultured on Eosin Methylene Blue (EMB) for Escherichia coli and Forget Fredette Agar (FFA) for Clostridium spp. Colonies were counted using Total Plate Count (TPC), and butyrate levels were measured with gas chromatography. Liver histology was assessed with the NAFLD activity score (NAS). Gut microbiota were analyzed using Crosstab and Chi-Square tests, and butyrate levels with the Kruskal-Wallis test. Butyrate levels decreased in NAFLD-inducing diet groups (HFD, WD, HFHFD) compared to ND (p=0.021). Escherichia coli colony counts were significantly higher in NAFLD-inducing diet groups (p=0.048), while Clostridium spp. counts were higher in ND (p=0.001). Liver histological changes, particularly in the WD group, resembled NAFLD. These findings imply that different high-fat diets can alter the gut microbiome, potentially influencing NAFLD development.

Effect of Giving Jamblang (Syzygium cumini) Leaf Extract on Testosterone Serum Level and Concentration of Spermatozoa in Male Rats Intoxicated with Lead Acetate

Lead is a source of free radicals in the environment. Lead accumulation in the blood generates increasing reactive oxygen species (ROS) in the body and various health problems, including male infertility. One effort that can be made to prevent this problem is to use antioxidants from natural sources such as jamblang (Syzygium cumini) leaf extract. This study is experimental with a randomised posttest-only control group design method. The object of this study was 30 white rats (Rattus norvegicus strain Wistar) which were divided into five groups (K-, K+, P1, P2, and P3). Lead acetate was given as much as 40 mg/kgBW in groups K+, P1, P2, P3 orally for 30 days. Jamblang (Syzygium cumini) leaf extract was given 50 mg/kgBW in the P1 group, 150 mg/kgBW in the P2 group, and 300 mg/kgBW in the P3 group orally for 30 days. Testosterone levels were examined using blood serum taken through the retro-orbital vein and examined using the Enzyme-Linked Immunosorbent Assay (ELISA) method. Spermatozoa were taken from the vas deferens and counted using the Neubauer counting chamber. The average level of testosterone serum was at K-2.47 ± 0.59 nmol/ml, K+ 2.23 ± 0.45 nmol/ml, P1 2.35 ± 0.65 nmol/ml, P2 2.56 ± 0 .73 nmol/ml, P3 1.96 ± 0.59 nmol/ml, there was no significant difference statistically (p &gt; 0.05). The average concentration of spermatozoa at K-32.06 ± 2.66 million/ml, K+ 19.45 ± 8.07 million/ml, P1 27.05 ± 1.89 million/ml, P2 28.65 ± 1.10 million/ml, P3 27.11 ± 5.64 million/ml, statistically there was a significant difference (p &lt; 0.05). There was no effect of giving jamblang (Syzygium cumini) leaf extract on testosterone serum levels and there was an effect of giving jamblang (Syzygium cumini) leaf extract on the concentration of spermatozoa of male Rattus norvegicus rats intoxicated with lead acetate. Keywords: lead acetate, jamblang leaf extract, testosterone, spermatozoa

IL-6 and IL-10 Levels in Rats Blood Plasma as Immune Responses Post Radioiodine (I-131) Administration.

The purpose of this study was to analyze the effect of oral administration of radioiodine (I-131) on the immune responses (interleukin 6 and 10) as biodosimetry markers and to support clinical trials of I-131 solution. The design of this study was an in vivo experimental study using twenty-seven male rats (Rattus norvegicus strain Sprague-Dawley) given 100 μL of I-131 solution at a dose of 260 μCi. Blood plasma was taken at 0.25, 0.5, 1, 3, 24, 48, 120, and 168 hours post oral I-131 administration, respectively. Rats without radioiodine administration as a control group. The levels of IL-6 and IL-10 were measured using the enzyme-linked immunosorbent assay (ELISA) method. Statistical analysis was carried out with one-way ANOVA using SPSS version 25 software. IL-6 level began to significantly increase at 0.25 hours post administration of I-131 (14.4 pg/mL ± 2.52 pg/mL, p=0.02). During 7 days of observation, IL-6 levels had 2 peaks of highly significant increase at 0.5 hours (43.57 ± 5.28, p<0.001) and 120 hours (24.08 ± 2.69, p<0.001 compared to control (5.44 ± 0.95 pg/mL). IL-10 level began to significantly increase at 0.25 hours (30.32 ± 3.22 pg/mL, p=0.03) compared to controls (20.61 ± 1.59 pg/mL). The highest increase in IL-6 and IL-10 levels occurred respectively in the first 0.5 hours 8 times and in the first 0.25 hours 1.47 times compared to controls. Internal irradiation with radioiodine resulted in a significant increase in immune cells in exposed blood plasma characterized by the production of the cytokines IL-6 and IL-10. This appears to be a response of immune cells to reduce or stop inflammatory reactions through the release of anti-inflammatory cytokines in an effort to prevent excessive inflammatory responses that can damage cells and tissues.

Wound healing effect of nutmeg (Myristica fragrans) cream on second-degree burn in animal model.

Second-degree burn, the most common among burn degrees, underscores the importance of timely and proper treatment in influencing prognosis. Nutmeg (Myristica fragrans), renowned for its potent antibacterial and antifungal properties, also serves as an effective antiseptic for open wounds. The aim of this study was to identify the phytochemical constituents of nutmeg essential oil and analyze the wound healing effect of nutmeg cream on second-degree burns in an animal model. An experimental study with a completed randomized design was conducted on Rattus norvegicus strain Wistar rats with second-degree burn. This study had four groups and each group consisting of four rats: B (burn-treated base cream), B+N (burn-treated 3% nutmeg cream), B+SSD (burn-treated silver sulfadiazine (BSS)), and B+N+SSD (burn-treated 3% nutmeg cream and SSD in a 1:1 ratio). The phytochemical analysis of nutmeg essential oil was conducted by gas chromatography and mass spectroscopy (GC-MS). The burn diameter and burn wound healing percentage were measured from day 0 to 18. One-way ANOVA followed by post hoc analysis using the least significant difference (LSD) was employed to analysis the effect. The phytochemical analysis of nutmeg essential oil found that myristicin, terpinene-4-ol, terpinene, safrole and terpinolene were the most abundant putative compounds in nutmeg essential oil. On day 0, the average burn wound diameters were 1.4 cm in all groups and increases were observed in all groups on day 3. The wound diameter decreased until day 18 with the smallest burn wound diameter was found in the B+N group (0.86±0.37 cm), followed by B+SSD (0.93±0.29 cm). The B+SSD group exhibited the highest percentage of burn wound healing (56.80±14.05%), which was significantly different from the base cream (p<0.05). The percentage of burn wound healing in rats given 3% nutmeg cream was 41.88±13.81%, suggesting that nutmeg cream could promote burn wound healing in rats induced by second-degree burns.

Aloin Extract on Histopathological Features of Osteogenesis in Fractures of Rattus Norvegicus Wistar Strains

The process of bone repair after trauma or fracture will involve cells, signalling molecules, and processes that have been active during the remodelling process. The new study found that Aloin can promote the expression of osteogenic differentiation regulators, such as Bmp-1 (Bone morphogenetic protein 1) and Runx1 (Runt-related transcription factor 1) in MC3T3–E1 cells, where Runx1 is a transcription factor in osteogenic differentiation—knowing and analyzing aloin extract on the histopathological picture of osteogenesis in Wistar strain rattus norvegicus fractures. This type of research is a laboratory experimental test with a post-test-only control group design. The population number will be divided into four groups, namely positive control group (+), negative control (-), treatment group 1, and treatment group 1, with 14 samples using the Purposive Sampling technique. Univariate data analysis is presented as mean and standard deviation and one-way ANOVA statistical test. Data processing using computerized IBM version 15.0 of the SPSS program. Histopathological picture of osteogenesis in fractures of male rats (Rattus norvegicus) based on osteoblast values at least at K(-), which is 30.64, and K(+), which is 31.90. In the P1 group, the highest average osteoblast value was 39.58, and P1's was 38.14. The osteoclast value is obtained at least at K(-) and 8, and K(+) is 19.01. In the P1 group, the highest average osteoclast value was 16.73, and P1 was 11.70. Aloin extract did not affect the histopathological picture of osteogenesis in fractures of male rats (Rattus norvegicus) with a sig of &gt;0.05.

Impact of multiple different high-fat diets on metabolism, inflammatory markers, dysbiosis, and liver histology: study on NASH rat model induced diet.

The spectrum of non-alcoholic fatty liver disease (NAFLD), known as non-alcoholic steatohepatitis (NASH), can lead to advanced liver disease. It is known that a variety of diets play a significant role in the development of NAFLD/NASH. The goal of this study was to determine the most appropriate composition of diet to induce NASH in an animal model. This research used Rattus norvegicus strain Wistar (n=27), which were divided into four groups and given each diet for 12 weeks: normal diet (ND, n=7), high-fat diet (HFD, n=6), western diet (WD, n=7), and high-fat-high-fructose diet (HFHFD, n=7). Subjects were monitored for changes in body weight. Blood samples were collected for biochemical analysis, including low-density lipoprotein (LDL), triglyceride, alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), hepatic lipase, tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and lipopolysaccharide (LPS). Fecal samples were taken for short-chain fatty acid (SCFA) analysis. Liver histology was assessed using NAS (NAFLD activity score). A statistical comparison test was carried out using the one-way ANOVA or Kruskal-Wallis test. The highest average body weight was observed in the WD group (346.14 g). Liver enzymes, LDL, triglyceride, propionic acid, and acetic acid did not show significantly differences among the groups. TNF-α, IL-6, and hepatic lipase were significant (p = 0.000; p = 0.000; p = 0.004) and the highest level recorded in the HFD group. Butyrate acid level also showed significances (p = 0.021) with the lowest concentration seen in the HFHFD group (4.77 mMol/g). Only WD and HFHFD had a NAS ≥ 5 (14% and 14%). The highest percentage of borderline NAS was found in WD (57%). WD feeding is the most appropriate diet type to induce NASH in rats as it influences metabolic, inflammatory, dysbiosis, and liver histology of rats.

The Effects of Giving Coconut Milk on Aortic Wall Thickness of Rats (Rattus norvegicus strain Wistar) Fed with High Fat Diet (HFD)

Atherosclerosis is a chronic disease due to fat accumulation in the blood vessel walls. Atherosclerosis is the leading cause of cardiovascular disease. Indonesian people’s habit of consuming coconut milk is suspected of causing dyslipidemia, a risk factor for atherosclerosis, by increasing low-density lipoprotein (LDL). However, other studies suggest that coconut milk can increase high-density lipoprotein (HDL), an antioxidant that prevents atherosclerosis. Because of the different findings, this study aims to determine the effects of coconut milk administration on the aortic wall thickness of rats (Rattus norvegicus strain Wistar) fed a high-fat diet (HFD). This true experimental study used samples of 28 male Wistar rats divided into seven groups. These groups consisted of the normal group (N), the negative control group (Kn), and five treatment groups that received coconut milk at various doses, including 2, 5, 3.75, 5, 7. 5, and 10 ml/kgBW/day. The results obtained were then analyzed using SPSS. The statistical tests used are the independent t-test, one-way ANOVA, LSD post hoc, Pearson correlation test, and regression test. Based on this study, the results showed that giving HFD for 45 days could cause the aortic wall to thicken. Meanwhile, giving an HFD accompanied by coconut milk for 45 days can prevent the thickening of the aortic wall, with the maximum effective dose that can be given being 9.75 ml/kg BW/day.

In vitro antioxidant and in vivo hypoglycemic activity of biophenols and polyunsaturated fatty acids from Vitis vinifera L. muscat and quebranta seeds from the Valley of Ica-Peru

Currently, there is a greater interest in using natural products in various chronic diseases such as type 2 diabetes. However, these investigations have not considered the components of grape seeds. In this context, the current study explored the in vitro antioxidant and in vivo hypoglycemic activity of biophenols and total polyunsaturated fatty acids (PUFA) from Vitis vinifera L. muscat and quebranta seeds from the Ica Valley, Peru. The total polyphenol content (TPC) of muscat (1.57±0.015 mg GAE/g) and quebranta (1.43±0.015 mg GAE/g) seeds was estimated by the Folin-Ciocalteu method. In vitro antioxidant activity was determined by DPPH• free radical assay for muscat and quebranta (IC50: 38.60±0.624 µg/mL and 42.83±0.306 µg/mL, respectively) and by FRAP 0.79±0.030 μg TEAC/g for muscat and 0.61±0.038 μg TEAC/g for quebranta. After inducing experimental hyperglycemia with alloxane in Rattus norvegicus strain Holtzman, treatment was carried out for 7 days and glucose levels were measured at 1, 2 and 4 hours. At a dose of 500 mg/kg, orally, of biophenols/PUFA from muscat and quebranta seeds, a hypoglycemic effect was observed; whose results were verified with the Shapiro-Wilk test (p-value &amp;gt; α = 0.05), Tukey’s multiple comparisons test (p-value 0.0001 &amp;lt; α = 0.05), Student’s T with p-value &amp;lt; α = 0.05 at 1 hour for days 1 to 6, and p-value 0.999 &amp;gt; α = 0.05 for 2 and 4 hours on day 7, indicates a small probability of difference; in ANOVA results the mean difference is significant (p-value 0.0001 &amp;lt; α 0.05). The Pearson analysis found a strong correlation [0.50 ≤ (0.9530–0.9827) &amp;lt; 1.0] between glibenclamide/biophenols-PUFA glucose levels. Current data show an in vitro antioxidant effect and hypoglycemic activity of the seeds of grapes of the muscat and quebranta varieties. Graphical abstract

Malondialdehyde Levels in Blood Serum of Wistar Rats After Exposure to Panoramic and Cephalometric Radiation (Experimental Laboratory Research)

Background: Panoramic and cephalometric radiographs are used in dentistry, especially orthodontics, sometimes accompanied by periapical examination. Behind the benefits of using radiography, there are disadvantages for the body, which cause changes in the normal cell arrangement, detected by increased levels of Malondialdehyde (MDA) in blood serum. Purpose: This study was to determine differences in blood serum MDA levels of wistar rats a few days after exposure to panoramic and cephalometric radiation. Materials and Methods: This study used 35 male Wistar strain Rattus norvegicus, weighing 200-250 grams, aged 3-4 months, in good physical health. Animals are divided into five groups. Group K did not do fixation and was not given radiation exposure; groups K1, K2, K3, and K4 underwent fixation were given radiation exposure, MDA levels were measured, groups K1, K2, K3, K4, day 1, 3, 5 and 7 after radiation exposure. MDA levels were measured by the thiobarbituric acid method using a spectrophotometer with a wavelength of 532nm. Results: There was a significant increase MDA levels in K1 (45.2704 + 2.08684). Significant decrease of MDA levels occurred in K2 (34.7747 + 7.90103), K3 (18.1266 + 5.33797), and K4 (12.0494 + 1.91399). Conclusion: There was an increase in MDA levels after radiation exposure, and MDA decreased significantly from the third to the seventh day after radiation exposure. However, MDA levels have not returned to normal.

The relationship between AQP1 expression in the subventricular zone and severity of hydrocephalus in Rattus Norvegicus strain Sprague-Dawley rats

Link of Video Abstract: https://youtu.be/pWRyUuqXX7g Background: Hydrocephalus is a condition of dilation of the ventricles caused by disturbances production, distribution, or absorption of cerebrospinal fluid (CSF). One of the integral membrane proteins identified in facilitating water transport across the plasma membrane is aquaporin-1 (AQP1), which is frequently found in the plexus choroid. However, theoretically also transports water to the subventricular zone (SVZ) with an unknown mechanism. AQP1 expression will be raised in SVZ under hydrocephalus conditions. This study aims to evaluate the relationship between the severity of hydrocephalus and AQP1 levels in SVZ. Methods: This research was conducted in an experimental design using Rattus Norvegicus rats of the Sprague-Dawley strain, which were injected with kaolin to create a hydrocephalus model. The study included 24 rats, divided into four groups of six each: the control group and the hydrocephalus induction group on day 7, day 14, and day 21. AQP1 expression was observed using immunohistochemical staining and counted semi-quantitatively. Results: The average AQP1 expression increased with observation time in the rat model in each group. The ANOVA test showed a significant difference between the four study groups (p=0.001). The correlation showed a statistically significant difference (p=0.000). The results showed an increased expression of the SVZ with a higher severity of hydrocephalus. Conclusion: The severity of hydrocephalus and AQP1 levels in SVZ are correlated, with the latter being higher, the more severe the degree of hydrocephalus.

#5018 EFFECTS OF CANDESARTAN COMPARED TO LOSARTAN ON INHIBITING MESANGIAL EXPANSION IN DIABETIC MODEL RATS RECEIVING ROSMARINIC ACID

Abstract Background and Aims Oxidative stress and activation of the renin-angiotensin system (RAS) due to chronic hyperglycemia are the pathogenesis of diabetic nephropathy (DN). Until now, therapy for DN has not shown satisfactory results. Rosmarinic acid (RA) which has antioxidant, anti-inflammatory, anti-fibrosis effects, and ARB which can inhibit RAS activation may have a synergistic effect to prevent DN progression. This study aims to determine the effect of inhibiting mesangial expansion in diabetic rat models after being given a combination of RA and ARB (candesartan or losartan). Method True experimental laboratory trial with randomized post-test only control group method on Rattus norvegicus strain Wistar rats. Diabetic rats were prepared by giving a high-fat diet (60% fat calories) and a single injection of 40 mg/kg streptozotocin. Mice were divided into 4 groups, each consisting of 4 rats: negative control (healthy rats); positive control (placebo diabetic rats); diabetic rats that received RA and candesartan; diabetic rats that received RA and losartan. The rat glomerulus was evaluated to assess mesangial expansion using ImageJ 1.48 software after 8 weeks of treatment by a pathologist blindly. Data analysis with One-way ANOVA and Tukey's post hoc tests. Results The results of the percentage of the mesangial matrix in the positive control group (81.49% ± 1.45) were higher than the negative control group (58.82% ± 0.99). The results of the percentage of the mesangial matrix in the RA + candesartan treatment group (61.56% ± 0.35) and the RA + losartan treatment group (62.28% ± 0.77) showed lower results than the positive control group, with the One-way ANOVA test results showing significant differences (p: 0.000). Tukey's post hoc tests showed the positive control group that received a high-fat diet and induced diabetes with STZ significantly increased mesangial expansion compared to negative control (MD: [22.66]; 95% CI: [20.62], [24.72]; p: 0.000). The RA + candesartan treatment group significantly inhibited mesangial expansion compared to the positive control (MD: [-19.92]; 95% CI: [-21.97], [-17.87]; p: 0.000), as well as the RA + losartan treatment group (MD: [-19.21]; 95%CI: [-21.26], [-17.16]; p: 0.000). The RA + candesartan treatment group showed a better effect in inhibiting mesangial expansion compared to the RA + losartan treatment group, but not significantly (p: 0.735). Conclusion The combination of rosmarinic acid with candesartan or losartan has the effect of inhibiting mesangial expansion in diabetic rats.

The Effect of Electronic Cigarettes (E-Cigarettes) and Conventional Smoke on the Trachea and Heart of Male White Rats

Electronic cigarettes (e-cigarette) smoker was increasing from 0.3% in 2011 to 2.5% in 2015. E-cigarettes claimed to be safe for smoker, but subsequent research has shown that e-cigarette smoke also contains harmful ingredients beside nicotine, like carbon monoxide (CO). These contents presumed to increase the goblet cells in the trachea and can cause myocardial ischemia in the left ventricle of the heart which leads to necrosis. This study was conducted to determine the effect of e-cigarette and conventional cigarette smoke on tracheal goblet cells and left ventricular necrosis of the heart of male white rats (Rattus norvegicus strain wistar). Experimental study with post-test control only group design. 16 rats were divided into 4 groups: normal group, conventional cigarette group (kretek) with 2.3 mg nicotine, 3 mg nicotine e-cigarette, and 0 mg nicotine e-cigarette. Trachea and heart of rats were prepared using HE-staining and observed with a light microscope with 400x magnification. All data were analyzed using One-way ANOVA, Kruskall Wallis and Post-Hoc tests. Cigarette smoke had a significant effect on tracheal goblet cell (ANOVA p=0.000) and left ventricular necrosis of the heart (Kruskal Wallis p=0.002). Post-Hoc test showed a significant difference in the number of goblet cells and left ventricular necrosis of the heart (p (-- removed HTML --) 0.005). This is due to the toxic materials such as carbon monoxide, propylene glycol, formaldehyde, nitrosamines, and other carcinogenic substances. E-cigarette and conventional cigarettes smoke could affect increasing of tracheal goblet cells and left ventricular necrosis of rat.

The Differences Between the Effect of Oral and Intraperitoneal Induction of Aluminum Chloride (AlCl3) on the Memory Function of White Rats (Rattus norvegicus strain wistar) Menopause Model

The decline in estrogen at menopause leads to a loss of neuroprotective function. One of the effects is Alzheimer’s disease (AD), with clinical manifestations of dementia, decreased memory function, language, thinking, and learning. The pathology of AD is widely studied but not completely understood. Various animal models have been used but have not been able to represent the pathology of AD fully. This study aimed to determine the effect of oral and intraperitoneal induction of aluminium chloride (AlCl3) on the memory function of menopausal model white rats (Rattus norvegicus strain wistar). This study used 16 female rats, divided into four groups, namely the negative control group (K1), the ovariectomy group (OVX, K2), and the OVX + AlCl.6H20 group 100 mg/kg BW orally (K3), and the OVX + AlCl3.6H20 group. 70 mg/kg body weight intraperitoneally. AlCl3.6H20 induction was given for six weeks. In the last five days, the Morris water maze test was carried out. From the MANOVA test, the p-value of F values in Pillai’s trace, Wilks‘ Lambda, Hotelling’a Trace, and Roy’s Largest Root were &lt; 0.05. Based on the post hoc Bonferroni test on the fifth day of the trial, there was a significant difference between the standard and OVX groups with the AlCl3 induction group, and there was no significant difference between the oral and intraperitoneal induction groups. Conclusion: There is no significant effect of oral and intraperitoneal induction of Aluminum Chloride (AlCl3) on the memory function of white rats (Rattus norvegicus strain wistar) menopausal model.&#x0D; Keywords: menopause, Alzheimer’s disease, memory test

Effect of Lactobacillus Plantarum IS-10506 on Paneth cell regeneration in the ileum of Sprague dawley rats

Background: Escherichia coli (E. coli) is the most common infectious agent among children in developing countries. Local probiotics are not widely used to treat diarrhea and intestinal infections. This study aims to investigate the cell regeneration process of Paneth cells after administration of Lactobacillus Plantarum IS-10506 due to damage caused by Lipopolysaccharide (LPS) E. coli O55:B5, through the expression of MATH-1 and DEFA6. Methods: This study used 64 paraffin blocks from Rattus norvegicus strain Spraque- Dawley divided into four groups. The KN group were administered a placebo. The KL group received LPS E. coli O55:B5 on day one. The KP group received LPS E. coli O55:B5 on the first day and Lactobacillus plantarum IS-10506 on the second day until six day. The KPR group were given Lactobacillus plantarum IS- 10506 six days prior to receiving LPS E. coli O55:B5. All groups, except KN, received LPS at a dose of 250 μg/kg body weight once, and Lactobacillus plantarum IS-10506 at a dose of 2.86x106 CFU/day. Evaluating Paneth cell regeneration, DEFA6, and MATH-1 expression immunohistochemistry was conducted on all tissues. Results: The expression of DEFA6 and MATH-1 in the KP and KPR groups on day three of observation was significantly different from the KL group. Even though the KL group achieved significant growth, the results of this expansion were significantly smaller than KP and KPR groups. Conclusion: After mucosal injury caused by LPS E. coli 055:B5, administration of probiotic Lactobacillus plantarum IS- 10506 may increase Paneth cell regeneration through differentiation and cell number.

Ascorbic Acid vs Calcitriol in Influencing Monocyte Chemoattractant Protein-1, Nitric Oxide, Superoxide Dismutase, as Markers of Endothelial Dysfunction: In Vivo Study in Atherosclerosis Rat Model.

Ascorbic acid and calcitriol were frequently utilized in conjunction as therapy during the COVID-19 pandemic, and individuals with minor symptoms had notable improvements. There have been a few studies, often with conflicting findings, that examine the use of them for endothelium restoration and numerous clinical trial studies that failed to establish the efficacy. The aim of this study was to find the efficacy of ascorbic acid compared to calcitriol on the inflammatory markers monocyte chemoattractant protein-1 (MCP-1), nitric oxide (NO), and superoxide dismutase (SOD), as protective agents which play an important role in the early stages of atherosclerosis formation. This study was an experimental in vivo study. The total of 24 male Rattus norvegicus strain Wistar rats were divided into 4 groups, namely: control/normal group (N), atherosclerosis group (DL) given atherogenic diet, atherosclerosis group given atherogenic diet and ascorbic acid (DLC), and atherosclerosis group given atherogenic diet and calcitriol (DLD) treatment for 30 days. Ascorbic acid and calcitriol treatment was significantly effective (P<0.05) in lowering expression of MCP-1 and increasing NO and SOD level. Calcitriol was superior to ascorbic acid in increasing SOD (P<0.05). There was no significant difference between ascorbic acid and calcitriol in decreasing MCP-1 and increasing NO (P>0.05). Both treatments could reduce MCP-1, and increase NO and SOD by increasing antioxidants. In this study calcitriol was superior to ascorbic acid in increasing SOD, but not NO and decreasing MCP-1. According to the theory, it was found that calcitriol through nuclear factor erythroid 2-related factor 2 (Nrf2) causes a direct increase in the amount of SOD. Nrf2 is an emerging regulator of cellular resistance to oxidants. Ascorbic acid and calcitriol treatment was able to reduce MCP-1 and increase NO and SOD in atherosclerosis rat. Calcitriol was significantly superior in increasing SOD levels compared to ascorbic acid.

CaCO3 from Anadara granosa shell as reparative dentin inducer in odontoblast pulp cells: In-vivo study.

Anadara granosa (blood clam) shell contained 98.7% of calcium carbonate (CaCO3). This material has bio-properties that able to induced the dentin regeneration. This study is expected to reveal the nuclear factor kappa beta (NF-kB), transforming growth factor beta (TGF-β1), and vascular endothelial growth factor A (VEGF-A) expression in dental pulp after application of CaCO3 from Anadara granosa shell. The thirty Rattus norvegicus strain Wistar used as model. The maxillary first molar was preparation using 0.84mm low-speed diamond bur to made cavity. The cavity then applied glass ionomer cement (as control group) and other group applied CaCO3 from Anadara granosa shell. The teeth in each group were extracted after 1st, 3rd and 7th days of application for immunohistochemistry analysis for NF-kB, TGF-β1, and VEGF-A expression. The NF-kB expression in the group with CaCO3 from Anadara granosa shell lower than control after 1st, 3rd and 7th days (p<0.05). In other hand, the TGF-β1 and VEGF-A expression in the group with CaCO3 from Anadara granosa shell higher than control after 1st, 3rd and 7th days (p<0.05). CaCO3 from Anadara granosa shell able to stimulate the TGF-β1 and VEGF-A and suppress the NF-kB expression in the dental pulp. This material able to develop as dentin-pulp material restoration.

Impact of multiple different high-fat diets on metabolism, inflammatory markers, dysbiosis, and liver histology: study on NASH rat model induced diet

Background: The spectrum of non-alcoholic fatty liver disease (NAFLD), known as non-alcoholic steatohepatitis (NASH), can lead to advanced liver disease. It is known that a variety of diets play a significant role in the development of NAFLD/NASH. The goal of this study was to determine the most appropriate composition of diet to induce NASH in an animal model. Methods: This research used Rattus norvegicus strain Wistar (n=27), which were divided into four groups and given each diet for 12 weeks: normal diet (ND, n=7), high-fat diet (HFD, n=6), western diet (WD, n=7) and high-fat-high-fructose diet (HFHFD, n=7). Subjects were documented for body weight. Blood samples were taken for biochemical analysis: low-density lipoprotein (LDL), triglyceride, alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), hepatic lipase, tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and lipopolysaccharide (LPS). Feces were taken for short-chain fatty acid (SCFA) analysis. Liver histology was analyzed using NAS (NAFLD activity score). The comparison test was carried out using the one-way ANOVA or Kruskal–Wallis test. Results: The highest average body weight was in the WD group (346.14 g). Liver enzymes, LDL, triglyceride, propionic acid, and acetic acid in each group were not significantly different. TNF-α, IL-6, and hepatic lipase were significant (p = 0.000; p = 0.000; p = 0.004) and the highest was in the HFD group. Butyrate level was significant (p = 0.021) and the least was in the HFHFD group (4.77 mMol/g). Only WD and HFHFD had an NAS ≥ 5 (14% and 14%). The highest percentage of borderline NAS was found in WD (57%). Conclusions: The HFD group showed significant liver inflammation but did not produce NASH histologically, whereas the WD and HFHFD groups had the potential to develop NASH because the diets affected metabolic and inflammatory parameters as well as liver histology.