scholarly journals Effects ofAstrocaryum aculeatumMeyer (Tucumã) on Diet-Induced Dyslipidemic Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Geórgia Craveiro Holanda Malveira Maia ◽  
Mozer da Silva Campos ◽  
Janice Barros-Monteiro ◽  
Juan Eduardo Lucas Castillo ◽  
Murilo Soares Faleiros ◽  
...  
Keyword(s):  
Treatment Group ◽  
Body Weight Gain ◽  
Male Rats ◽  
Control Group ◽  
Average Weight ◽  
Sedentary Control ◽  
Commercial Feed ◽  
Astrocaryum Aculeatum ◽  
Gain Body Mass

Anin vivostudy was conducted to assess the effects of the consumption ofAstrocaryum aculeatum Amazon Meyer(tucumã) in the treatment of diet-induced dyslipidemia in sedentary and exercised Wistar rats. With an average weight of 350 grams, 40 male rats were divided into 4 subgroups of 10. The sedentary control group (SCG) was fed with commercial feed, while the sedentary treatment group (STG) was fed with a ration of tucumã. In addition to the sedentary groups, two exercise groups were formed. The Exercised control group (ECG) was fed with commercial food and the exercised treatment group (ETG) was fed with a ration of tucumã. Body weight gain and food intake were monitored during the experiment. Plasma was analyzed for cholesterol, triglycerides, HDL-C, LDL-C, VLDL, total protein, glucose, insulin, and leptin concentrations. Our results show that the ECG group tended to consume more food, while the groups that were fed with tucumã pulp (STG and ETG) presented a greater tendency to gain body mass. ECG group showed a tendency towards a higher concentration of cholesterol in plasma, while STG and ETG presented higher absolute values for triglycerides and VLDL. No hypolipiemic effect was observed related to tucuma ingestion.

Experimental study of the inhibition effect of CXCL12/CXCR4 in malignant pleural mesothelioma

2018 ◽  
Vol 67 (2) ◽  
pp. 338-345 ◽  
Author(s):  
Jianshuang Li ◽  
Tong Li ◽  
Shuo Li ◽  
Lipeng Xie ◽  
Yi-Lin Yang ◽  
...  
Keyword(s):  
Treatment Group ◽  
Malignant Pleural Mesothelioma ◽  
Synergistic Effects ◽  
Control Group ◽  
Pleural Mesothelioma ◽  
Gene Expressions ◽  
Relationship Of ◽  
The Relationship ◽  
Cxcr4 Axis

Previous studies have demonstrated that CXCL12/CXCR4 axis is closely related to tumors such as malignant pleural mesothelioma (MPM). This research was conducted in order to detect whether CXCL12/CXCR4 inhibitors could restrain MPM and have a synergistic effect with chemotherapy, also to investigate the relationship of CXCL12/CXCR4 with other gene expressions in MPM. Forty mice were injected MPM cells and randomly divided into four groups: the PBS (control group), AMD3100 (CXCR4-CXCL12 antagonist), pemetrexed and AMD3100 plus pemetrexed. The mice were treated respectively for duration of 3 weeks. The size, bioluminescence and weight of tumors were measured. The differences between gene expressions in each group were analyzed. The tumor weights of each treatment group were lower than that of the control group (p<0.05). The bioluminescence of the tumor of the AMD3100 treatment group and the AMD3100 plus pemetrexed treatment group were lower than that of the control group (p<0.05), and AMD3100 was shown to have synergistic effects with pemetrexed (p<0.05). Among the 2.5 billion genes, several hundreds of genes expressed differently between groups. Results show that AMD3100 and pemetrexed can inhibit the growth of MPM in vivo, also that there is a better result if both are used together. Our findings suggest that CXCL12/CXCR4 axis affects a certain amount of gene expression in MPM.

scholarly journals High Doses of Caffeine during the Peripubertal Period in the Rat Impair the Growth and Function of the Testis

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Minji Park ◽  
Yuri Choi ◽  
Hyeonhae Choi ◽  
Ju-Yearn Yim ◽  
Jaesook Roh
Keyword(s):  
Leydig Cells ◽  
Ex Vivo ◽  
Body Weight Gain ◽  
Male Rats ◽  
Male Rat ◽  
Control Group ◽  
High Doses ◽  
And Function ◽  
The Impact ◽  
Caffeine Exposure

Prenatal caffeine exposure adversely affects the development of the reproductive organs of male rat offspring. Thus, it is conceivable that peripubertal caffeine exposure would also influence physiologic gonadal changes and function during this critical period for sexual maturation. This study investigated the impact of high doses of caffeine on the testes of prepubertal male rats. A total of 45 immature male rats were divided randomly into three groups: a control group and 2 groups fed 120 and 180 mg/kg/day of caffeine, respectively, via the stomach for 4 weeks. Caffeine caused a significant decrease in body weight gain, accompanied by proportional decreases in lean body mass and body fat. The caffeine-fed animals had smaller and lighter testes than those of the control that were accompanied by negative influences on the histologic parameters of the testes. In addition, stimulated-testosterone ex vivo production was reduced in Leydig cells retrieved from the caffeine-fed animals. Our results demonstrate that peripubertal caffeine consumption can interfere with the maturation and function of the testis, possibly by interrupting endogenous testosterone secretion and reducing the sensitivity of Leydig cells to gonadotrophic stimulation. In addition, we confirmed that pubertal administration of caffeine reduced testis growth and altered testis histomorphology.

scholarly journals Histochemical examination on principal collagen fibers in periodontal ligaments of ascorbic acid-deficient ODS-od/od rats

Microscopy ◽  
2019 ◽  
Vol 68 (5) ◽  
pp. 349-358 ◽  
Author(s):  
Tomoka Hasegawa ◽  
Yukina Miyamoto-Takasaki ◽  
Miki Abe ◽  
Zixuan Qiu ◽  
Tomomaya Yamamoto ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Acid Solution ◽  
Collagen Fibers ◽  
Collagen Fibrils ◽  
Male Rats ◽  
Control Group ◽  
Ascorbic Acid Solution ◽  
Cathepsin H ◽  
Periodontal Ligaments

Abstract In this study, we aimed to clarify the role of ascorbic acid in collagen synthesis in periodontal ligaments using osteogenic disorder Shionogi (ODS)/ShiJcl-od/od rats lacking L-gulonolactone oxidase. These rats cannot synthesize ascorbic acid in vivo. Eight-week-old ODS/ShiJcl-od/od male rats were administered ascorbic acid solution at a concentration of 200 mg/dL (control group, n = 6) or ascorbic acid solution at concentration of 0.3 mg/dL (insufficient group, n = 12). Six rats of the insufficient group were then given with ascorbic acid solution at concentration of 200 mg/dL for additional 3 weeks (rescued group, n = 6), and then, their mandibles were histochemically examined. Consequently, the insufficient group specimens were seen to possess fewer collagen fibers, and silver impregnation revealed numerous fine, reticular fiber-like fibrils branching off from collagen in the periodontal ligaments. In control group, faint immunoreactivities for matrix metalloproteinase (MMP)2 and cathepsin H were seen in the periphery of blood vessels and throughout the ligament, respectively. In contrast, in the insufficient group, intense MMP2-immunoreactivity was observed to be associated with collagen fibrils in the periodontal ligaments, and cathepsin H-immunopositivity was seen in ligamentous cells. The rescued group showed abundant collagen fibers filling the periodontal ligament space. Under transmission electron microscopy, ligamentous fibroblasts incorporated collagen fibrils into tubular endosomes/lysosomes while simultaneously synthesizing collagen fibril bundles. Thus, ascorbic acid insufficiency affected the immunolocalization of cathepsin H and MMP2; however, ligamentous fibroblasts appear to possess the potential to synthesize collagen fibers when supplied with ascorbic acid.

Occurrence and pathology of mycotoxins in commercial parrot feeds

2013 ◽  
Vol 6 (4) ◽  
pp. 449-453 ◽  
Author(s):  
S.-J. Li ◽  
E. Njumbe Ediage ◽  
S. De Saeger ◽  
L. Van Waeyenberghe ◽  
A. Garmyn ◽  
...  
Keyword(s):  
Body Weight Gain ◽  
Control Group ◽  
Potential Threat ◽  
Renal Tubular Cells ◽  
Liquid Chromatography Tandem Mass ◽  
Pelleted Feed ◽  
Group 2 ◽  
Renal Tubular ◽  
Aflatoxin B

Mycotoxins are toxic secondary metabolites of fungi. Animal feeds can be easily infected by fungi during production and storage, resulting in mycotoxin contamination. This study was performed to evaluate the possible health risks of mycotoxin-contaminated feed for cockatiels. The occurrence of mycotoxins in commercial parrot feeds (5 seed mixes and 5 pelleted feeds) was investigated by liquid chromatography tandem mass spectrometry. The following 12 mycotoxins were detected: zearalenone, deoxynivalenol, 3-acetyldeoxynivalenol, 15-acetyldeoxynivalenol, fusarenon X, aflatoxin B1, sterigmatocystin, alternariol, alternariol methylether, fumonisin B1, fumonisin B3, and ochratoxin A. Zearalenone was the most prevalent. Pathological effects after 21 days feeding mycotoxin-contaminated diets were examined in an in vivo trial with 3 groups of 5 cockatiels: group 1 (control) was fed a non-contaminated pelleted feed; group 2 was fed a pelleted feed containing zearalenone, deoxynivalenol, 15-acetyldeoxynivalenol, and fumonisins; and group 3 was fed a pelleted feed containing fumonisins. Average body weight gain and relative organ weight were not significantly different between the treatment groups and the control group. Apoptosis of renal tubular cells, diarrhoea, reduced appetite, enlargement of liver, kidney and proventriculus were occasionally observed in the birds from groups 2 and 3. In summary, contamination with mycotoxins is common in parrot feeds. The mycotoxin levels did not reach toxic levels, but might pose a potential threat to some sensitive cockatiels.

scholarly journals Experimental Application of Sage in Rabbit Husbandry

2008 ◽  
Vol 77 (4) ◽  
pp. 581-588 ◽  
Author(s):  
R. Szabóová ◽  
A. Lauková ◽  
Ľ. Chrastinová ◽  
M. Simonová ◽  
V. Strompfová ◽  
...  
Keyword(s):  
Inhibitory Effect ◽  
Negative Influence ◽  
Feed Consumption ◽  
Control Group ◽  
Coagulase Negative Staphylococci ◽  
E Coli ◽  
Commercial Feed ◽  
Experimental Group

Salvia spp. belongs to the Labiatae family and is characterized by antimicrobial and antiinflammatory effect. The aim of this study was to test its in vitro and in vivo inhibitory effect against bacteria as well as to find an alternative possibility to use sage in the rabbit ecosystem examining biochemical, zootechnical and inmunological indicators, compared to the commercial feed mixture Xtract. Using the sage extract in in vitro tests, its inhibitory effect was noted. Under in vivo conditions, in the experimental group with sage (EG1), reduction of Pseudomonas-like sp. (p < 0.01) and E. coli (p < 0.01) was noted after 7 days of sage application compared to the control group CG2 (with Robenidin) as well as after 21 days of sage extract application, when the reduction of coagulase-negative staphylococci (p < 0.01) was detected (in comparison with the experimental group-EG2, Xtract group). In the caecum of rabbits from EG1, higher values of lactic, acetic and butyric acids were noted. The values of propionic acid were not influenced. Biochemical indicators were not influenced; however, the values of GSH Px were lower in EG1 compared to EG2. Higher phagocytic activity (18%) was noted in EG1 than in EG2 (13%) after 21 days of additives application. The reduction of Eimeria sp. oocysts was demonstrated in EG1 (sage group) after 7 days of sage application comparing to CG2 (217 OPG to 566 OPG). The animals in both experimental groups achieved higher feed consumption and weight gain, lower mortality compared to both controls. Neither of the additives had a negative influence on the health status and growth performance of rabbits.

scholarly journals Fermented sorghum porridge fortified with moringa leaf powder and baobab fruit pulp cured children from moderate acute malnutrition in Benin

2020 ◽  
Vol 20 (06) ◽  
pp. 16622-16637
Author(s):  
Nago E ◽  
◽  
JO Agossadou ◽  
FJ Chadare ◽  
S Houndji ◽  
...  
Keyword(s):  
Weight Gain ◽  
Treatment Group ◽  
Acute Malnutrition ◽  
Control Group ◽  
Average Weight ◽  
Fruit Pulp ◽  
Fortified Food ◽  
Leaf Powder ◽  
Moderate Acute Malnutrition ◽  
Average Weight Gain

Inappropriate feeding, too early introduction of complementary foods and restriction in food selection are a major cause of malnutrition among young children in developing countries. Food-to-food fortification is a good strategy to enhance the nutritional quality of children’s diet. This strategy is more and more promoted because it allows delivery of micronutrients to a large population in a cost-effective manner.The present study aimed at testing the effect of the consumption of sorghum porridge fortified with moringa leaf powder and baobab fruit pulp on the nutritional status of children aged 6 to 59 months in Northern Benin. A two-week intervention was implemented in Tanguiéta (Benin) among children affected by moderate acute malnutrition, using 400g of fermented sorghum porridge fortified with15g of a designed mix of moringa leaf powder and baobab fruit pulp. Sixty-three children aged 6–59 months who had malnutrition assessed by anthropometry were randomly selected and assigned to a treatment or a control group. Children in the treatment group consumed the fortified formula daily for two weeks in a nutritional rehabilitation hearth whereas those in the control group had their habitual diet. Their nutritional status was evaluated using anthropometry. Recovery rate and average weight gain of children were computed.Results show that daily consumption of the fortified food for two weeks did not significantly (P> 0.05) increase children’s weight in treatment vs. control. However, average weight gain was 9.85g/kg/day in the treatment group and total recovery rate at risk of malnutrition and moderate acute malnutrition was 62.50% among children who fully complied with the intervention. Fermented sorghum porridge fortified with moringa leaf powder and baobab fruit pulp may be promoted to scale in more regions of Benin as a local affordable and effective therapeutic food against child acute malnutrition. Further investigation of its potential effect while accounting for parasitic infection is needed, to eliminate all risks of intestinal micro nutrient malabsorption or malaria and enhance the effectiveness of the fortified food on children’s weight as well as their iron status.

scholarly journals Effect of Giving Mahkota Dewa Fruits (Phaleria Macrocarpa) Extract to Epithelialization In Incision Wound of White Rats (Rattus Norvegicus)

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Idola Perdana Sulistyoning Suharto
Keyword(s):  
Treatment Group ◽  
Rattus Norvegicus ◽  
Male Rats ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
White Rats ◽  
Significant Difference ◽  
Phaleria Macrocarpa ◽  
Incision Wound

The research purpose was to analysis effect of giving mahkota dewa fruits (Phaleria macrocarpa) extract to epithelialization in incision wound of white rats (Rattus norvegicus). The method was randomized posted-only control group design. There were 30 male rats (Rattus norvegicus) grouped on control and treatment group. Control group divided into three groups (KK1, KK2, KK3) and also treatment group divided into three groups (KP1, KP2, KP3). Control group just given CMC 1% peroral without mahkota dewa fruits extract, the treatment group given mahkota dewa fruits extract 22.5 mg/kg body weight. The data was analyzed by Kruskall Wallis. Based on Kruskall Wallis test, obtained result that there was a significant difference (p<0.05) epithelialization variable with p value p = 0.000 between control and treatment group. And based on One-way Anova test, obtained result that there was a significant difference (p<0.05) with p value p =0.000 between control and treatment group. The conclusion of this research was giving mahkota dewa fruits (Phaleria macrocarpa) extract can increase epithelialization in incision wound of white rats (Rattus norvegicus). Keywords : Mahkota Dewa Fruits (Phaleria Macrocarpa) Extract, Epithelialization, Incision Wound 

scholarly journals Protection of Dayak Onion Tuber Extract (Eleutherine Palmifolia) Against Kidney Histopathological Appearence of Albino Male Rat Strain Wistar which was Induced by Alloxan

2017 ◽  
Vol 3 (6) ◽  
pp. 702 ◽  
Author(s):  
Dwi Gayatri Nurcahyawati ◽  
Hani Plumeriastuti ◽  
Lilik Maslachah
Keyword(s):  
Treatment Group ◽  
Rattus Norvegicus ◽  
Oral Therapy ◽  
White Male ◽  
Male Rats ◽  
Male Rat ◽  
Glomerular Sclerosis ◽  
Control Group ◽  
Per Oral ◽  
Tuber Extract

The purpose of this study was to know the effect of Dayak onion tuber extract (Eleutherine palmifolia) given by per oral in lowering levels of histophatology damage kidney of albino male rat (Rattus norvegicus) strain Wistar which was induced by alloxan. Animals which were used in this research were 24 white male rats (Rattus norvegicus) strain Wistar, and then divided into 6 groups. The negative control group K (-) were given with aquabidest and CMC-Na 1% during the therapy period, the positive control group K (+) were given with alloxan 110 mg / kgbw, the group of drug control K (O) were given with alloxan and oral therapy  with metformin 9 mg / 200g bw / day, the treatment group 1 (P1) were given with alloxan and per oral therapy with extract of  Dayak onion tuber 100 mg / kgbw, the treatment group 2 (P2) were given with alloxan and per oral therapy with extract of Dayak onion tuber 200 mg / kgbw and the treatment group 3 (P3) were given with alloxan and per oral therapy with extract of Dayak onion tuber 400 mg / kgbw. The therapy was given for 14 days, then the animals were sacrificed with ketamine and then its kidney was taken for examination of hisphatology in kidney. Observations based on their depiction of renal histopathology tubular degeneration and necrosis, glomerular necrosis, intestitial infiltration and glomerular sclerosis. Data obtained from the scoring of histopathological appearence albino rat kidneys were analyzed by test Kruskal-Wallis and if there is a real difference followed by Mann-Whitney test using SPSS 20.0 for windows. The results showed that the extract of Dayak onion tuber 400 mg/ kgbw  can reduce the degree of kidney damage in albino male rat exposed to alloxan significantly.  Key words: Eleutherine palmifolia, alloxan, kidney, histhopathology

scholarly journals Haematological Presentations in Acute and Chronic Tramadol Intoxication

2020 ◽  
Vol 5 (1) ◽  
pp. 26-36
Author(s):  
Loveday U. Zebedee ◽  
◽  
Owubokiri N. Jeremiah ◽  
Anthony E. Soroh ◽  
Eni-yimini S. Agoro ◽  
...  
Keyword(s):  
Treatment Group ◽  
Normal Saline ◽  
Blood Count ◽  
Saline Solution ◽  
Lethal Dose ◽  
Haemoglobin Concentration ◽  
Chronic Phase ◽  
Male Rats ◽  
Full Blood Count ◽  
Control Group

Introduction Tramadol is a synthetic centrally acting analgesic used worldwide for pain relief, but now abused as a euphoria generating substance. The short- and long-term implications of tramadol intoxication on blood cells and its components are still hazy and controversial. Aim Our primary aim was to evaluate the alterative pattern of haematological parameters resulting from acute or chronic tramadol intoxication. Method The study was made of acute and chronic phases of sixty male rats (Rattusnorvegicus) randomly pair-divided into established groups of six male rats each. The acute stage consisted of a control group of 6 rats administered with normal saline solution, and a treatment group of 6 rats administered with lethal dose of tramadol. The control group for the chronic stage consisted of 6 rats that were administered normal saline solution. Whereas, the tramadol-dependent groups comprised of 3 groups of 6 rats each administered orally with 50 mg/kg, 100 mg/kg, and 200 mg/kg of tramadol for 90 days respectively. Statistical analyses consisted of the one-way analysis of variance (ANOVA), Student’s t-test, and Pearson’s Correlation using the JMP statistical discovery™ software version 14.1. Blood samples were collected after anesthetic sacrifice by cardiac puncture for the analysis of full blood count and red cell indices using SYSMEX Automated Blood Count machine (SYSMEX KX-21N ANALYZER) and microscopy for blood film reading. Results Results of the acute phase of the study showed that the packed cell volume (PCV) in the treatment group (51.00±2.96%) was significantly higher (t=3.99, p=0.002) than control (37.83±1.43%). Similarly, the haemoglobin concentration (Hb) in the treatment group (14.70±0.46 g/dL) was significantly higher (t=5.10, p=0.005) than control (11.55±0.41 g/dL). The mean cell haemoglobin concentration (MCHC) was significantly lower (t=2.67, p=0.02) in the control group (28.30±0.52 g/dL) than treatment (30.43±0.61 g/dL). However, that of the chronic phase exhibited a progressive increase in platelet count which was proportional to increasing dosage of treatment (t=8.59, p=0.007). Conclusion This study has demonstrated that tramadol administration could cause haematological alterations which could be beneficial if administrated optimally and deleterious, if abused. Therefore, indiscriminate and prolonged use of tramadol should be monitored to avert haemotoxicity.

scholarly journals PENGARUH PEMBERIAN EKSTRAK BIJI PINANG (ARECA CATECHU L.) TERHADAP WAKTU PERDARAHAN PASCA EKSTRAKSI GIGI PADA TIKUS JANTAN WISTAR (RATTUS NORVEGICUS L.)

2015 ◽  
Vol 17 (1) ◽  
pp. 129
Author(s):  
Jane Wuisan ◽  
Bernat Hutagalung ◽  
Wellsy Lino
Keyword(s):  
Treatment Group ◽  
Rattus Norvegicus ◽  
Bleeding Time ◽  
Male Rats ◽  
Control Group ◽  
Betel Nut ◽  
Areca Catechu ◽  
Time In Treatment ◽  
Teeth Extraction ◽  
Wistar Male Rats

PENGARUH PEMBERIAN EKSTRAK BIJI PINANG (ARECA CATECHU L.) TERHADAP WAKTU PERDARAHAN PASCA EKSTRAKSI GIGI PADA TIKUS JANTAN WISTAR (RATTUS NORVEGICUS L.) ABSTRAK Biji pinang (Areca catechu L.) merupakan salah satu tanaman obat yang dikenal masyarakat dapat menghentikan perdarahan. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian ekstrak biji pinang terhadap waktu perdarahan pasca ekstraksi gigi pada tikus jantan galur Wistar. Pada penelitian ini metode yang digunakan merupakan eksperimental. Ekstrak biji pinang didapatkan dengan cara maserasi dan penguapan menggunakan Rotary vacuum evaporator. Jumlah sampel sebanyak 24 ekor tikus jantan galur Wistar yang dibagi dalam 3 kelompok. Sampel penelitian kelompok perlakuan terdiri dari 8 ekor tikus jantan galur Wistar. Delapan sampel kelompok perlakuan diberi ekstrak biji pinang dosis 13,834 mg/200 g BB. Perhitungan dosis menggunakan tabel faktor konversi. Proses ekstraksi gigi tikus dilakukan setelah 4 jam pemberian ekstrak. Pemeriksaan waktu perdarahan dimulai saat gigi telah terlepas dari soket dengan melihat darah yang keluar sampai mulai terbentuknya bekuan darah pada soket. Perhitungan waktu perdarahan menggunakan stopwatch. Hasil penelitian menunjukkan rerata waktu perdarahan kelompok perlakuan yaitu 0.6125 (menit.detik). Rerata waktu perdarahan kelompok perlakuan tidak jauh berbeda dengan rerata waktu perdarahan kelompok kontrol positif yang diberi transamin yaitu 0.3475 (menit.detik) dan lebih singkat dari kelompok kontrol negatif etanol 96% dengan rerata waktu perdarahan 1.79 (menit.detik). Penelitian yang telah dilakukan menyimpulkan terdapat pengaruh pemberian ekstrak biji pinang (Areca catechu L.) dosis 13,834 mg/200 g BB terhadap waktu perdarahan pasca ekstraksi gigi pada tikus jantan galur Wistar. Kata kunci: Biji pinang, waktu perdarahan, ekstraksi gigi THE EFFECT OF BETEL NUT (Areca catechu L.) EXTRACT ON BLEEDING TIME AFTER EXTRACTION IN WISTAR MALE RATS (Rattus norvegicus L.) ABSTRACT The betel nut (Areca catechu L.) is a medicinal plant known by society to halt bleeding. This study was aimed to know the effect of betel nut extract administration on bleeding time after teeth extraction in Wistar male rats. This study was an experimental study. Betel nut extracts were obtained by maceration and evaporation using Rotary vacuum evaporator. The number of samples were 24 Wistar male rats divided into three groups. The treatment group consisted of 8 Wistar male rats. Eight samples of treatment group were fed with betel nut extract at dosage of 13,834 mg/200 g body weight. Dosages were calculated using conversion factor table. The rats teeth were extracted 4 hours after betel nut extract administration. Evaluation of bleeding time was started from the loss of extracted teeth from socket by observing the shed blood to the formation of blood clots in the socket. The bleeding time was calculated using stopwatch. Study results indicated that average bleeding time in treatment group namely 0.6125 (minute.second). The average bleeding time in treatment group did not differ significantly from average bleeding time in positive control group fed with transamine namely 0.3475 (minute.second), and shorter from negative control group fed with 96% ethanol with average bleeding time of 1.79 (minute.second). This study concluded that there was an effect of betel nut extract (Areca catechu L.) administration at dosage of 13,834 mg/200 g body weight on bleeding time after teeth extraction in Wistar male rats. Keywords: Betel nut, bleeding time, teeth extraction

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