Rattus Norvegicus Wistar Strain Research Articles

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.

Effect of Aloe vera extract in post-burn skin repair in rats

Background: Burn injury is a global health problem that is most often caused by heat. A burn injury can cause high morbidity and mortality and requires high cost. Therefore, the use of plants as an herbal medicine has the potential to be developed in Indonesia. Aloe vera contains various active ingredients that help the wound healing process, such as glucomannan and acemannan which have the effects on the proliferation of macrophages, fibroblasts, and re-epithelialization. This study aimed to determine the effect of Aloe vera extract in repairing post-burn skin in rats that were analyzed from the number of macrophages, fibroblasts, and epidermal thickness. Methods: This is an experimental study with a posttest-only control group design using 54 Rattus norvegicus Wistar strain rats. The sampling method was simple random sampling consisting of 3 groups, i.e., I. standard group, which were normal rats; II. negative control group, which were given second-degree burns and treated with gel base (without Aloe vera extract); III. treatment groups, which were given second-degree burns and treated with Aloe vera extract gel. Each group was subdivided into three smaller groups (n = 6) according to the time the lesions were evaluated. Skin tissue samplings were carried out on days 3, 14, and 21 after injury to observe the number of macrophages, fibroblasts, and epidermal thickness. Results: There were significant differences in the mean number of macrophages, number of fibroblasts, and epidermal thickness in all groups (p&lt;0.05). Conclusion: Based on the result of the study, Aloe vera extract could fasten the healing process of 2nd degree burn wound in rats.

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.

Human umbilical cord mesenchymal stem cells accelerate and increase implant osseointegration in diabetic rats.

This study was conducted to assess the effect of hUCMSCs injection on the osseointegration of dental implant in diabetic rats via Runt-related Transcription Factor 2 (Runx2), Osterix (Osx), osteoblasts, and Bone Implant Contact (BIC). The research design was a true experimental design using Rattus norvegicus Wistar strain. Rattus norvegicus were injected with streptozotocin to induce experimental diabetes mellitus. The right femur was drilled and loaded with titanium implant. Approximately 1 mm from proximal and distal implant site were injected with hUCMSCs. The control group was given only gelatin solvent injection. After 2 and 4 weeks of observation, the rats were sacrificed for further examination around implant site using immunohistochemistry staining (RUNX2 and Osterix expression), hematoxylin eosin staining, and bone implant contact area. Data analysis was done using ANOVA test. Data indicated a significant difference in Runx2 expression (p<0.001), osteoblasts (p<0.009), BIC value (p<0.000), and Osterix expression (p<0.002). In vivo injection of hUCMSCs successfully increased Runx2, osteoblasts, and BIC value significantly, while decreased Osterix expression, indicating an acceleration of the bone maturation process. The results proved hUCMSCs to accelerate and enhance implant osseointegration in diabetic rat models.

The Effect of Tamsulosin, Dutasteride Monotherapy and Tamsulosin-Dutasteride Combination on Prostate Smooth Muscle Contractility in BPH Model Wistar Strain Rattus Novergicus.

Following the c In the management of BPH, Tamsulosin is an example of a-adrenergic receptor blocker drug that is usually used. In addition, dutasteride is also a BPH drug that works as a group of 5 a reductase inhibitor. However, the weakness of long-term administration of a1-adrenergic receptor antagonists can result in upregulation of prostate smooth muscle cell contractility and expression of a-adrenergic mRNA receptors, resulting in hyperactivity and supersensitivity to a-agonists. Our study aimed to determine the effect of long-term administration of tamsulosin, dutasteride and tamsulosin-dutasteride combination on the contractility of prostate smooth muscle cells in BPH model rats. This study was designed using an experimental post test only method, control group design. It measured the contractility of prostate smooth muscle cells from samples obtained from the prostatic stroma of experimental animals adult male Rattus norvegicus Wistar strain induced BPH and administered tamsulosin 1 mg/kg/day, dutasteride 0.5 mg/kg/day, and a combination of continuous administration for 1, 6 and 12 consecutive days. Data were analyzed using one way ANOVA if the data distribution was normal or Kruskall Walis if the data distribution was abnormal. The effect of tamsulosin, dutasteride and the combination of tamsulosin with dutasteride on prostate smooth muscle cell contractility in experimental animals Rattus norvegicus Wistar strain showed that tamsulosin administration for six days, twelve days, and the combination of tamsulosin dutasteride for one day got statistically significant different result (p=0.016; p=0.006; p=0.029) compared to the negative control group. In addition, there was a difference between the tamsulosin and dutasteride combination group for 12 days compared to tamsulosin monotherapy for 6 days and 12 days (p=0.160; p=0.010). Continuous administration of monotherapy tamsulosin has an upregulation effect on the sixth to twelfth day. Decreased contractility of prostate smooth muscle cells occurs on the first day but will increase on the sixth to twelfth day. On the other hand, the results of our study also showed that the combination of tamsulosin and dutasteride gave the effect of reducing contractility and was most effective on day 12.

The Effect Of Continuously Dutasteride Monotherapy on The Expression Of Protein Kinase C-Alpha Enzyme In BPH Model Of Wistar Strain Rattus Novergicus Rat.

Benign prostate hyperplasia (BPH) is frequently found in the elderly and significantly impacts the quality of life. One of the risk factors that induce BPH is the androgen hormone. One of the effective medications in reducing the severity of Lower Urinary Tract Symptoms caused by BPH is the α-adrenergic receptor 5α-reductase inhibitor. The study aims to see the effect of long-term dutasteride on the expression of the PKC-α enzyme in prostatic stromal tissue in the BPH Model of Wistar strain Rattus norvegicus rats. This study was an experimental, post-test-only, control group design that used randomization in sample selection. The objective is to measure the expression of PKC-α enzyme from prostate tissue of an adult male Wistar Strain of Rattus Novergicus rat that was given testosterone to induce BPH and given dutasteride in 1,3 and 6 days continuously. Data is shown in mean±SD, and all of the data were analyzed using the software SPSS 21st version with the One Way ANOVA Statistical method after fulfilling the normality test and variant homogeneity test. Data analysis with confidence rate 95% and a=0,05. There was a decrease of PKC-α enzyme and prostate weight in dutasteride monotherapy in 1,3,6 days compared to the positive control, and the lowest value was on the sixth day (SD ± 2876.8). There was a constant decrease of PKC-α enzyme from the first day until the sixth day. In conclusion, long-term dutasteride monotherapy could significantly decrease the level of PKC-α enzyme. There was no upregulation of the PKC-α enzyme in the long term of dutasteride monotherapy.

Extract of cell culture Rejasa (Elaeocarpus grandiflorus) Decrease Blood Glucose Through Insulin Receptor Pathway

Diabetes mellitus is a metabolic disease characterized by the high blood glucose levels. The high prevalence of Diabetes Mellitus needed an innovation in prevention, treatment and control of case. Rejasa (Elaeocarpus grandiflorus) is one of plants has the potential to develop as an antidiabetic. The pretest and posttest control group design were conducted to 30 Rattus norvegicus Wistar strain. The rats induced alloxan monohydrate intraperitoneally at dose of 125 mg/kg BW once day until the blood glucose above 200 mg/dL The hyperglycemic rats were divided into 5 groups, that were negative control (K-), positive control (K+, given glibenclamide 0.072 mg/200 gBW), P1 (given E. glandiflorus cell extract 1 mg/kgBW), P2 (given E. glandiflorus cell extract 10 mg/kgBW), and P3 (given E. glandiflorus cell extract 100 mg/kgBW). The rats were given E. glandiflorus and glibenclamide orally for 10 days. Measurement of blood glucose levels was carried out on day 0 and day 10, after 10 h fasting. The mechanism of antidiabetic effect of E. glandiflorus was explored by in silico. The mean of blood glucose levels on day 0 were 455.2 mg/dL (K), 422.8 mg/dL (K+), 469.8 mg/dL (P1), 355.5 mg/dL (P2) and 446 mg/dL (P3). The blood glucose levels on day 10 were 367.8 mg/dL (K-), 89.6 mg/dL (K+), 285.6 mg/dL (P1), 136.8 mg/dL (P2) and 104.8 (P3). Statistical analysis showed the difference between K- from P2(p=0.015) and P3 (p0.001). When compared with K+, only P3 showed no difference (p=0.873). Flavonoid of E. glandiflorus act on insulin receptor pathway and involved HK2, PTPN1, AKT1, PI3KR1, HRAS and GSK3B protein. These results showed that extract cell of E. glandiflorus have antidiabetic activity on insulin receptor pathway.

Effect of Aloe vera extract in post-burn skin repair in rats.

Background: Burn injury is a global health problem that is most often caused by heat. A burn injury can cause high morbidity and mortality and requires high cost. Therefore, the use of plants as an herbal medicine has the potential to be developed in Indonesia. Aloe vera contains various active ingredients that help the wound healing process, such as glucomannan and acemannan which have the effects on the proliferation of macrophages, fibroblasts, and re-epithelialization. This study aimed to determine the effect of Aloe vera extract in repairing post-burn skin in rats that were analyzed from the number of macrophages, fibroblasts, and epidermal thickness. Methods: This is an experimental study with a posttest-only control group design using 54 Rattus norvegicus Wistar strain rats. The sampling method was simple random sampling consisting of 3 groups, i.e., I. standard group, which were normal rats; II. negative control group, which were given second-degree burns and treated with gel base (without Aloe vera extract); III. treatment groups, which were given second-degree burns and treated with Aloe vera extract gel. Each group was subdivided into three smaller groups (n = 6) according to the time the lesions were evaluated. Skin tissue samplings were carried out on days 3, 14, and 21 after injury to observe the number of macrophages, fibroblasts, and epidermal thickness. Results: There were significant differences in the mean number of macrophages, number of fibroblasts, and epidermal thickness in all groups ( p<0.05). Conclusion: Aloe vera extract could accelerate the healing process of burns in rats.

THE EFFECT OF PERORAL POLYVINYL CHLORIDE MICROPLASTIC ON ALKALINE PHOSPHATASE AND GAMMA-GLUTAMYL TRANSFERASE LEVELS IN RATTUS NORVEGICUS WISTAR STRAIN

Introduction: Human exposure to microplastics continues to rise. Microplastics are harmful and are suspected of contributing to various health problems in humans, including reduced liver function. Purpose: This study aimed to determine the effect of oral polyvinyl chloride microplastic consumption on alkaline phosphatase (ALP) and gamma-glutamyl transferase (GGT) levels in Rattus norvegicus Wistar strain. Method: Male Rattus norvegicus Wistar strain experiments were separated into control and experimental groups, with the experimental group receiving a 0.5 mg/day dose of polyvinyl chloride microplastic. The experimental animals' blood was taken using the cardiac puncture technique, and the ALP and GGT levels were determined using the kinetic photometric test method. Result and Discussion: The Shapiro-Wilk normality tests showed that the ALP variable from the control group (P=0.342) and the experimental group (P=0.727) was significantly different from the GGT variable from the control group (P=0.482) and experimental group (P=0.099). Thus, the data for the ALP and GGT variables are claimed to be normally distributed. The ALP variable (P = 0.237) and the GGT variable (P = 0.839) both passed the significant homogeneity test, indicating that the ALP and GGT variable data were homogeneous. The independent comparison test T-test findings indicated that the ALP variable (P=0.602) and the GGT variable (P=0.161) were not statistically significant. Conclusion: The oral administration of polyvinyl chloride microplastic had no significant influence on the ALP and GGT levels in the blood of Rattus norvegicus Wistar strain in the experimental group compared to the control group.

THE EFFECT OF PERORAL POLYVINYL CHLORIDE MICROPLASTIC ON THE VALUE OF PROTHROMBIN TIME AND ACTIVATED PARTIAL THROMBOPLASTIN TIME IN RATTUS NORVEGICUS WISTAR STRAIN

Introduction: Microplastics can enter the human digestive system as polyvinyl chloride (PVC). Microplastics ingested by humans will accumulate in several organs. Microplastic accumulation in the liver causes inflammation, which damages hepatocyte cells, impairing liver synthesis function, one of which is the synthesis of blood clotting factors. Purpose: The purpose of this study was to determine the effect of oral microplastic polyvinyl chloride on prothrombin time (PT) and activated partial thromboplastin time (APTT) in Rattus norvegicus strain Wistar (APTT). Method: The experimental design incorporated a post-test-only control group. There were 12 rats randomly assigned to the control (K) or experimental (E) groups. For 28 days, Group E was exposed to microplastic type PVC at a concentration of up to 0.5 mg/day in 1 cc of Aquabidest via an oral probe. Blood samples were analyzed using a coagulation analyzer at BBLK Surabaya. The statistical test used an independent t-test. Result: There was a significant difference in the mean PT value of group K (9.8 ± 0.99 seconds) compared to group E (14.23 ± 9 seconds) (p=0.024) and the mean APTT value of group K(18.32 ± 7.96 seconds) compared to group E(26.1 ± 18.15 seconds) (p=0.022). Discussion: These findings confirm the theory that exposure to polyvinyl chloride microplastics in the liver can induce hepatocyte cell inflammation and impair the liver's ability to synthesize blood clotting factors, resulting in prolonged PT and APTT values. Conclusion: Oral administration of PVC microplastic affects PT and APTT values.

Bone tissue engineering application on fracture healing with bone defect as assessed through osteocalcin and bone morphogenetic protein-2 (BMP-2) biomarker examination: experimental study on murine models

Background: Bone is naturally regenerable, with a high ability to repair itself. In massive segmental bone defect, bone cannot be repaired independently. Therefore, it is necessary to give a bone graft to promote the healing process. To date, autografts are the gold standard for bone grafts. However, some of the reported complications reported have led to auto-bone transplants being often disregarded. Both autografts or allografts also have some issues. Therefore, in an effort to develop alternative treatments for correcting bone defects and their consequences, bone tissue engineering (BTE) has gained popularity and is nowadays being researched as a potential alternative in bone defect management. There are three fundamental components in BTE combined: biomaterials (scaffolds), mesenchymal stem cells (MSCs), and growth factors. The combination of these components is believed to help the healing process of bone defects. Methods: This work was an animal study involving twenty Wistar strain Rattus norvegicus. They were divided into five groups: negative group (normal rats), positive group (rats with the bone defect without intervention), K-P1 group (rats with bone defect given SVF and porous carbonated- hydroxyapatite (HA)application), K-P2 group (rats with bone defect given SVF and nanocrystalline-HA application) and K-P3 (rats with bone defect giving SVF a bovine-HA application). After 30 days, the rats were sacrificed, the biomarkers osteocalcin and BMP-2 were evaluated. Biomarkers were quantified using ELISA. Results: Both osteocalcin and BMP-2 biomarker expressions were higher in intervention group (with SVF and scaffolds application) compared to the positive group (with no SVF and scaffolds treatment). The combination of SVF and bovine HA was reported significantly to have the highest osteocalcin and BMP levels when compared with other groups Conclusions: A combined application of SVF and scaffolds could aid the healing process in murine models with bone defect, marked by increasing levels of osteocalcin and BMP-2.

Administration of Oral Curcumin to Resistance Exercise after Immobilization Does Not Affect Skeletal Muscle Fiber Diameter in Rattus Norvegicus

ABSTRACTIntroduction: The aim of this study was to explore the effect of adding oral curcumin to resistance exerciseafter immobilization on the diameter of skeletal muscle fiber in Rattus Norvegicus.Methods: This was a post-test only study design on animal model. Subjects of the study were male Rattusnorvegicus strain Wistar, age 10-12 weeks old, weigh between 150-300 g, were immobilized at soleusmuscle for 2 weeks, then randomly allocated to 3 groups: (i) control group, (ii) resistance exercise, (iii)oral curcumin + resistance exercise. After 4 weeks of intervention, the diameter of the muscle fibers wasmeasured.Result: The results of this study showed a significant difference on the diameter of skeletal muscle fiberbetween control group and resistance exercise, as well as control group and resistance exercise + oralcurcumin (p&lt;0.05). There was no significant difference between resistance exercise only and resistanceexercise + oral curcumin (p&gt;0.05).Conclusion: Administration of oral curcumin to resistance exercise after immobilization does not affectskeletal muscle fiber diameter in Rattus Norvegicus.Keywords : curcumin, good health and well-being, immobilization, resist ance exercise, skeletal muscle.

Effect of Coriandrum sativum L on Blood Glucose Levels among Alloxan- Diabetic Mice (Rattus norvegicus strain wistar)

The blood glucose level of the body tends to increase slightly after the age of 50. The coriander (Coriandrum sativum L) is a member of the Apiaceae family and it grows in a wide range conditions and can be used as antidiabetic. The purpose of this study was to determine the effect of coriander water extract on the blood sugar levels of white rats (Rattus norvegicus strain wistar). The method of this study involved experimental animals, specifically 20 Rattus norvegicus strain wistar ranging from 150-200grams with an age between 2-3 months. The mice were injected with an alloxan solution to induce a diabetic condition and then they were divided into four groups and treated. The treatments were 0.5% Na CMC, glibenclamide 0.45mg/Kg b.w, coriander extract of 100mg/Kg b.w and coriander extract of 200mg/Kg b.w for 15 days. The blood glucose level of the mice was measured on days 0, 1, 5, 10 and 15. The results showed that the 0.5% CMC placebo had no effect in terms of reducing the glucose level of the rats, Glibenclamide 0.45mg/Kg b.w had an effect in terms of reducing the blood glucose level, as did coriander extract 100mg/Kg b.w and 200mg/Kg b.w among the alloxan-diabetic mice.

Effect of Aloe vera extract in post-burn skin repair in rats.

Background: Burn injury is a global health problem that is most often caused by heat. Burn injury can cause high morbidity and mortality and requires high cost. Therefore, the use of plants as herbal medicine has the potential to be developed in Indonesia. Aloe vera contains various active ingredients that help the wound healing process, such as glucomannan and acemannan which have the effects on the proliferation of macrophages, and fibroblasts, and re-epithelialization. This study aimed to determine the effect of Aloe vera extract in repairing post-burn skin in rats that was analyzed from the number of macrophages and fibroblasts, and epidermal thickness. Methods: This is an experimental study with a posttest-only control group design using 54 Rattus norvegicus Wistar strain rats. The sampling method was simple random sampling consisting of 3 groups, i.e., I. standard group, which were normal rats; II. negative control group, which were given second-degree burns and treated with gel base (without Aloe vera extract); III. treatment groups, which were given second-degree burns and treated with Aloe vera extract gel. Each group was subdivided into three smaller groups (n = 6) according to the time the lesions were evaluated. Skin tissue samplings were carried out on day 3, 14, and 21 after injury to observe the number of macrophages and fibroblasts, and epidermal thickness. Results: There were significant differences in the mean number of macrophages, number of fibroblasts, and epidermal thickness in all groups ( p<0.05). Conclusion: Aloe vera extract gel could accelerate the healing process of burns in rats.

TGF-1 biomarker level evaluation on fracture healing in a murine model with a bone defect after stromal vascular fraction application.

Aim Bone defect is a challenge even for experienced orthopaedic surgeons and it is a significant cause of morbidity in patients and a source of high economic burden in health care. A severe bone defect is a condition whereby the bone tissue cannot undergo natural healing despite surgical stabilization and requires further surgical intervention. Stromal vascular fraction (SVF) is a heterogeneous cell population derived from adipose tissue that results from minimal manipulation of the adipose tissue itself. TGF is essential in maintaining and expanding mesenchymal stem cells or progenitors of osteoblasts. Furthermore, TGF-β signalling also triggers osteoprogenitor cell proliferation, early differentiation, and maintenance of osteoblasts in the bone healing process. The aim of this study was to determine the effect of administering SVF on bone defects' healing process assessed based on the TGF- β1. Methods This was an animal study involving twelve Wistar strain Rattus norvegicus. They were divided into three groups: negative group (normal rats), positive group (rats with bone defect without SVF application), and SVF group (rats with bone defect with SVF application). After 30 days, the rats were sacrificed, the TGF- β1 biomarker was evaluated (quantified using ELISA). Results TGF- β1 biomarker expressions were higher in the group with SVF application than in the group without SVF application. All comparisons of the SVF group and positive control group showed significant differences (p=0,000), respectively. Conclusion Giving SVF application could aid the healing process in a murine model with bone defect, marked by an increased level of TGF- β1.

The Effect of Adiponectin Recombinant in Rattus Norvegicus with Polycystic Ovarium Syndrome Model on Anti-Müellerian Hormone Expression

Background: Polycystic Ovary Syndrome (PCOS) is an important disease that causes various healthproblems in women. Ovulation - infertility disorders are found in 60-85% woman with PCOS. Anti-Muellerian Hormone (AMH), a protein from Transforming Growth-b Family, often increased in patientwith PCOS and associated with severity and poor prognosis for assisted reproductive outcome. Dietaryand lifestyle changes are the first-line therapies but consistent application of this method is difficult toattain for people with PCOS. Adiponectin, a product by adipose cells have a significant reduction inobese and women with PCOS. The purpose of this study was to see the differences in AMH expressionbetween mice with polycystic ovary model treated with adiponectin recombinant and mice withpolycystic ovary model treated with placebo and control.Method: This research is an experimental study with a Post Test Only Control Group design. Thesample of this study was 3 months female Rattus norvegicus Wistar strain weighing 110-120 g. Thesample size was 36, which were divided into three groups, K0 (control group of mice with polycysticovary model), K1 (group of mice with polycystic ovary model that received placebo injection), and K2(group of mice with polycystic ovary model that received 5 μg/ml injection of recombinant adiponectin).Polycystic ovary model made by injecting 10 mg/Kg body weight testosterone propionate for 14 days.The injection is carried out at the proestrous stage. The three groups of mice in a period of 3 weeks aftertreatment, were surgically removed according to the sampling procedure, then the ovaries were given acode and immunohistochemical staining was performed to see the AMH expression in the ovaries. Thedata were collected, then statistical analysis was carried out using SPSS software.

The Effect of Lemon Peel (Citrus limon) Aromatherapy Inhalation as Antidepressant on Rats using Diffuser Method

Abstract. Background Depression is a mood disorder that affects a person’s quality of life. This condition is influenced by the levels of monoamine compounds such as serotonin, norepinephrine, and dopamine in the brain. The decrease in monoamine levels leads to depressive symptoms. Lemon peel essential oil has an antidepressant potential, that contains phytochemicals, d-Limonene, which increase monoamine levels in the brain. Aromatherapy diffuser inhalation method is one kind of treatment route in depression. The mechanism of action is by breaking down the smaller essential oil particles so they penetrate quicker to the brain. Objective: To determine the effect of lemon peel (Citrus limon) aromatherapy inhalation diffuser method on immobility time of white rats (Rattus norvegicus Wistar strain) on the tail suspension test. Method: True Experimental with Post Test Only Control Group Design. Fifteen white male rats Wistar strain were divided into 5 groups. The positive control group was given stressors and saline induction intraperitoneally. In addition to stressors, the treatment group was also given lemon peel aromatherapy inhalation at a dose of 1%, 2.5%, and 5%. Measurement of immobility time was carried out by hanging the rats' tails through the tail suspension test method and the time of animals stopped moving for at least 1 second was calculated using a timer. Data were analyzed using the ANOVA test, Post Hoc test, Pearson correlation test, and Linear Regression test. Results and Discussion: ANOVA test showed a significant difference between groups (p = 0.017). The post Hoc test showed a significant difference (p &lt;0.05) between the positive control and the P3 group (5%). The linear regression test obtained Adjusted R2 = 0.598 (inhalation of lemon peel aromatherapy gives an effect of 59.8%). The decrease of immobility time was due to the reduction of depression that was caused by the increase of monoamine level induced by d-limonene in lemon peel essential oil. Conclusion: The inhalation of lemon peel (Citrus limon) aromatherapy with diffuser method has the antidepressant effect that reduces the immobility time of depressed white rats (Rattus norvegicus Wistar strain).

Antioxidant Activity of Purslane (Portulaca oleracea L.) Leaf Extract on the Levels of Ovarian Oxidative Stress and Reproductive Hormone in Rattus norvegicus Exposed to Cigarette Smoke

BACKGROUND: Purslane (Portulaca oleracea L.) is a wild plant that grows in Indonesia and is considered a weed, but it has the highest antioxidant activity in the leaves and stems. Cigarette smoke is one of the exogenous free radicals that can enter blood circulation, interfering with all cells and tissues in the body, including reproductive organs. AIM: The research aims to examine the antioxidant effect of purslane leaf extract on oxidative stress levels (ovarian malondialdehyde [MDA] levels) and reproductive hormone levels (follicle-stimulating hormone [FSH] and 17ß-estradiol) in female white rats exposed to cigarette smoke. METHODS: This study is an experimental study with randomized post only control group design, using 12-week-old female Wistar strain Rattus norvegicus weighing about 200–250 g divided into four treatment groups (n = 6). Negative control without exposure to cigarette smoke and purslane leaf extract (K), cigarette group with cigarette smoke 1 stick/day administration without purslane leaf extract (P1), purslane group with purslane leaf extract 200 mg/Kg BW without exposure to cigarette smoke (P2), and group the group with cigarette smoke 1 stick/day accompanied by purslane leaf extract 200 mg/Kg BW administration (P3). Ovarian MDA measurement measures MDA levels as an indicator of oxidative stress in the ovaries determined by the spectrophotometry method. The enzyme-linked immunosorbent assay method measured the measurement of FSH and 17ß-estradiol levels in blood taken intracardially through the right ventricle of the heart. RESULTS: The results showed that purslane leaf extract at a 200 mg/Kg BW dose reduced ovarian MDA levels of female white rats exposed to cigarette smoke significantly with p &lt; 0.05. CONCLUSION: However, there has been no significant change in FSH and 17ß-estradiol.

The Effect of Regular and Unregular Exercise against Network Damage

The purpose of this study was to determine the difference in the effect of regular and irregular exercise on tissue damage, while the indicator used to determine tissue damage was creatine kinase. This study is an experimental laboratory study with a randomized control group post-test-only design, using a sample of 39 male Rattus norvegicus strain wistar mice divided into 3 groups consisting of: swimming exercise group regularly with exercise frequency 3 times per week, swimming training group irregularly. With irregular exercise frequency and control group who were not given swimming training. The treatment was carried out for 3 months. From the results of the study, the following results were obtained: there was a very significant difference (p < 0. 01) between the groups of regular and irregular exercise on tissue damage, where irregular exercise has a greater effect on tissue damage. Based on the results of the study, it can be concluded that irregular exercise has a greater potential for tissue damage than regular exercise.

Oral Administration of Red Rice (Oryza nivara) Bran Extract Reduced Weight, Visceral Fat And Liver Steatosis Amount in Obesity Male Wistar Rats (Rattus norvegicus)

Background: Nonalcoholic fatty liver disease (NAFLD) is associated with obesity. Red rice (Oryza nivara) bran is known to contain polyphenol and antioxidants that might be potential in reducing body weight and visceral fat in obese mice and preventing liver steatosis. This study was aimed to prove the effect of oral administration of red rice bran (Oryza nivara) extract on body weight, visceral fat, and liver steatosis amount in obese male Wistar rats. &#x0D; Method: In this research, the subjects were 36 male obese (Lee index &gt; 0.3) white rats (Rattus norvegicus) Wistar strain, 4-5 months old, divided into two groups. The control group received a placebo and the treatment group received 460mg/200gram red rice bran extract for 5-weeks. Bodyweight, visceral fat, and the amount of liver steatosis were observed. Differences between groups in each variable were analyzed.&#x0D; Results: The weight of the control group and the treatment group was 321.17 ± 19.04 grams and 305.72 ± 12.89 grams (p &lt; 0.05). The visceral fat weight was 3.15 ± 0.34 grams in the control group and 2.99 ± 0.34 grams (p &gt; 0.05) in the treatment group. Liver steatosis amount was 41 ± 18 cells per visual field in the control group, and 21 ± 12 (p &lt; 0.05) in the treatment group.&#x0D; Conclusion: Oral administration of red rice bran extract can reduce body weight and liver steatosis amount in obese Wistar rats. The extract of red rice bran did not have a significant effect in reducing visceral fat.