scholarly journals Profile of SGPT and SGOT on Male Rats (Rattus norvegicus) Hyperglycemic After Giving Insulin Leaf Extract (Tithonia diversifolia)

2018 ◽  
Vol 10 (3) ◽  
pp. 519-525
Author(s):  
Rizki Fitrawan Yuneldi ◽  
Tyas Rini Saraswati ◽  
Enny Yusuf Wachidah Yuniwarti
Keyword(s):  
Body Weight ◽  
Rattus Norvegicus ◽  
Leaf Extract ◽  
Liver Weight ◽  
Male Rats ◽  
Hepatosomatic Index ◽  
Tithonia Diversifolia ◽  
White Rats ◽  
Improve Liver Function ◽  
Male Wistar Rats

The leaves of insulin (Tithonia diversifolia (Hemsl.) A. Gray) are native bush plants from Central America. This plant in Indonesia is often called paitan or kembang bulan. The aim of this research was to know the profile of SGPT and SGOT of male white rat (Rattus norvegicus L.) hyperglycemic after giving insulin leaf extract (Tithonia diversifolia (Hemsl.) A. Gray). This study used 20 male Wistar rats which were divided randomly into 5 groups of treatment. Those were P0 as a group of rats which was not given alloxan and insulin leaf extract, P1 as a group of rats which was given alloxan without insulin leaf extract, P2 as a group of rats which was given alloxan and glibenclamide 2 mg/Body Weight (BW)/day, P3 as a group of rats which was given alloxan and insulin leaf extract 30 mg/BW/day, P4 as a group of rats which was given alloxan and insulin leaf extract 60 mg/BW/day. Each treatment was repeated as many as 4 replications. The results of this study indicated that there was no significant differences in all variables, namely levels of SGPT, SGOT, liver weight, body weight and Hepatosomatic index (HSI), so it can be concluded that giving insulin leaf extract (Tithonia diversifolia (Hemsl.) A. Gray) of 30 mg/BW/day and 60 mg/BW/day could improve liver function of hyperglycemic male white rats (R. norvegicus L.).

scholarly journals PENGARUH PEMBERIAN EKSTRAK ETANOL KEMBANG SEPATU (Hibiscus rosa-sinensis L.) TERHADAP JUMLAH SPERMATOZOA, BERAT BADAN, DAN BERAT TESTIS TIKUS JANTAN WISTAR (Rattus norvegicus)

2019 ◽  
Vol 19 (1) ◽  
pp. 6
Author(s):  
Nabila S Petta ◽  
Edwin De Queljoe ◽  
Rooije R.H. Rumende
Keyword(s):  
Body Weight ◽  
Rattus Norvegicus ◽  
Ethanol Extract ◽  
The Body ◽  
Male Rats ◽  
White Rats ◽  
Hibiscus Rosa Sinensis ◽  
Randomized Design ◽  
Male Wistar Rats ◽  
Ethanol Extracts

PENGARUH PEMBERIAN EKSTRAK ETANOL KEMBANG SEPATU (Hibiscus rosa-sinensis L.) TERHADAP JUMLAH SPERMATOZOA, BERAT BADAN, DAN       BERAT TESTIS TIKUS JANTAN WISTAR (Rattus norvegicus)ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh pemberian ekstrak etanol kembang sepatu terhadap jumlah spermatozoa tikus jantan wistar (Rattus norvegicus). Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan menggunakan 24 ekor tikus putih jantan galur wistar (Rattus norvegicus) yang dibagi atas beberapa kelompok dimana kelompok 1 sebagai kelompok kontrol tanpa perlakuan, kelompok 2, 3 dan 4 sebagai kelompok perlakuan dengan dosis secara berturut-turut 3,6 mg/ml; 7,2 mg/ml; dan 14,4 mg/ml. Perlakuan diberikan secara oral sekali sehari sebanyak 1 ml selama 50 hari sesuai siklus spermatogenesis. Variabel yang diamati yakni jumlah sel spermatozoa, berat badan, dan berat testis. Hasil penelitian ini menunjukkan bahwa ekstrak etanol kembang sepatu dapat menurunkan jumlah sel spermatozoa, serta menyebabkan adanya perbedaan berat badan dan berat testis namun, berdasarkan hasil analisis varians, ekstrak etanol daun kembang sepatu tidak dapat menurunkan jumlah sel spermatozoa, berat badan dan berat testis tikus putih jantan galur wistar (Rattus norvegicus) secara signifikan.Kata Kunci: Sel spermatozoa, Kembang sepatu (Hibiscus rosa-sinensis L.),                    Tikus jantan Wistar (Rattus novergicus) THE INFLUENCE OF THE ETHANOL EXTRACTS  OF GRANTING HIBISCUS (Hibiscus Rosa-sinensis L.) AGAINST THE NUMBER OF SPERMATOZOA, WEIGHT AND THE WEIGHT OF THE TESTES MALE WISTAR RATS (Rattus norvegicus) ABSTRACTThis research’s objective is to know the influence of injecting ethanol extract from a hibiscus into a number of common male rats (Rattus norvegicus). This research uses the approach of complete randomized design (CRD) onto 24 common white rats (Rattus norvegicus) that is divided into groups, where group 1’s approach is control without treatment, groups 2, 3, and 4’s approach is with treatment, with consecutive doses being 3.6 mg/ml; 7.2 mg/ml; and 14.4 mg/ml.  The treatment is induced orally as large as 1cc per day for a total of 50 days following the spermatogenesis cycle. The variables that are being observed are the amount of spermatozoon cells, body weight, and testicle weight. The results of this research indicates that ethanol extract from hibiscuses, from a quantity perspective, can decrease spermatozoon cells, and it may also influence the body weight and testicle weight of the subject, in this case are common rats (Rattus norvegicus) but, from the mathematical results from Analysis Of Variance, ethanol extract from the leaves of a hibiscus cannot decrease the amount of spermatozoon, body weight, and testicle weight  of a common white rat (Rattus norvegicus).Keywords: Spermatozoon Cells, Hibiscus (Hibiscus rosa-sinensis L.), Common (white) rat (Rattus novergicus)

scholarly journals 6. Administration of Centella Leaf Extract (Centella asiatica (L.) Urban) for Decreasing cAMP Responsive Element Modulator (CREM) Expression in Testicular Seminiferous Tubule of Male Rats (Rattus norvegicus)

2016 ◽  
Vol 1 (2) ◽  
pp. 31-37
Author(s):  
Susi Darmayanti ◽  
Sri Wahyuni ◽  
Muslim Akmal ◽  
Tongku Nizwan Siregar ◽  
Sugito Sugito
Keyword(s):  
Body Weight ◽  
Rattus Norvegicus ◽  
Leaf Extract ◽  
Centella Asiatica ◽  
Male Rats ◽  
Male Rat ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Responsive Element ◽  
Neutral Formalin

The objective of this study was to determine the effect of centella leaf extract administration on decreased of the molecule cAMP responsive element modulator (CREM) expression in the testicular seminiferous tubules of male rats (Rattus norvegicus). Eight rats, aged 3.5 months with 150-250 grams of body weight (BW) were used in this study. All rats were divided randomly into four groups as if K0 as a control group whereas K1, K2, and K3 were given the centella leaf extract with doses 125, 250, and 500 mg / kg body weight respectivelly that given once daily for 30 days. At the end of the treatment, rats were sacrificed and their testes were collected and subsequently fixed in buffered neutral formalin (BNF) 10% as fixative solution for histological preparation. The CREMs expressions were detected using immunohistochemical methods. The results showed that the number of CREM expression in the seminiferous tubules significantly differ (P <0.05) between K0 and the treatment group (K1, K2, and K3). Conclusion, the administration of centella leaf extract with of the dose 125, 250, and 500 mg/kg BW can decreased CREM expression spermatids of testicular seminiferous tubules in male rat.

scholarly journals EFEKTIFITAS EKSTRAK DAUN KEMBANG BULAN (Tithonia diversifolia) TERHADAP GAMBARAN HISTOPATOLOGI PANKREAS PADA TIKUS YANG DIINDUKSI ALOKSAN

2021 ◽  
Vol 11 (1) ◽  
pp. 15-24
Author(s):  
Ruswandono Wirjatmadja ◽  
Rondius Solfaine ◽  
Dian Ayu Kasrtikasari ◽  
Anisa Novia Wati
Keyword(s):  
Diabetes Mellitus ◽  
Rattus Norvegicus ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Inflammatory Cells ◽  
Tithonia Diversifolia ◽  
The Moon ◽  
Male Wistar Rats ◽  
Made In

This study was conducted to determine the histopathological picture of the pancreas by induction of alloxan and extracts of the moon flower (tithonia diversifolia) in wistar rats (rattus norvegicus). A total of 24 male Wistar rats with 4 treatments were control P0, alloxan P1 with 1% CMC Na, P2 alloxan with 100mg / kgBB extract, alloxan P3 with 200mg / kgBB extract. Mice after said diabetes mellitus with a number> 135 mg / dL were then given treatment with 1% CMC Na on P1 and lunar leaf extract at P2 and P3, necropsy was carried out on the 15th day and the pancreatic organs were taken to be made in the form of preparations with coloring. HE, lesions observed Degeneration, Inflammatory Cells and Necrosis using a microscope, the results were analyzed using Kruskal wallis followed by Mann withney. The data obtained by degeneration in the kruskal wallis test were very significantly different because there were significant differences (P = 0.01), inflammation cells in the Kruskal wallis test were very significantly different because there were significant differences (P = 0.00), and for necrosis in the Kruskal wallis test significantly different because there are significant differences (0.02).

scholarly journals 12. The Effect Of Neem Leaves (Azadirachta Indica) Extract To The Blood Profile Of Male Rat (Rattus Norvegicus) Infected With Trypanosoma Evansi Of Krueng Raya Isolat

2018 ◽  
Vol 12 (1) ◽  
pp. 70-76
Author(s):  
Atika Agusty ◽  
Yudha Fahrimal ◽  
Triva Murtina Lubis ◽  
Muhammad Hambal ◽  
Zuhrawaty NA ◽  
...  
Keyword(s):  
Rattus Norvegicus ◽  
Leaf Extract ◽  
White Male ◽  
Positive Control ◽  
Trypanosoma Evansi ◽  
Male Rats ◽  
Male Rat ◽  
Blood Profile ◽  
White Rats ◽  
Neem Leaf Extract

This study aimed to determine the ability of neem leaf extract to maintain the normal blood profile of white male rat (Rattus norvegicus) infected with Trypanosoma evansi. A total of 24 male white rats were divided into 6 groups. The K0 group as the negative control received no T. evansi infection and no neem leaf extract. Furthermore, K1  group (positive control) only infected with T. evansi,  K2 and K3 were given neem leaf extract 50mg/kg BW and 100mg/kgBW, while K4 and K5 were given neem leaf extract 400mg/KgBW and  K5 800mg/kgBW. The neem leaf extract was administered for 3 consecutive days after infection established. The blood of the rats was collected to determine the amount of erythrocyte and leukocyte, hemoglobin level and hematocrit value. The data were analyzed using Analysis of Variance (ANOVA) through SPSS for Windows 16.0. The averages (+SD) of erythrocyte of K0, K1, K2, K3, K4, and K5 were 5,64±0,57; 2,31±1; 1,93±0; 0; 2,55±0,33; and 2,56±0,48. The amount of leukocyte were 4,46±1,09; 4,45±1,91; 5,25±0; 0; 8,42±1,66; and 8,14± 5,17. The value of hemoglobin were 12,00±0,47; 10,50±0,57; 4,30±0; 0; 5,60±0,20; and 9,03±0,66. The level of hematocrit 38,00±1,83; 25,00±9,90; 15±0; 0; 18,00±2,65, and 20,75±1,71. The result showed that the administration of neem leaf extract with doses 400mg/kgBW and 800mg/kgBW were difference significantly (P0.05) compare to the positive control of rats, but could not equalize blood profile of uninfected white male rats

scholarly journals Pemberian Ekstrak Daun Cincau (Mesona palustris BL) Meningkatkan Kadar Superoksida Dismutase (SOD) Tikus Wistar (Rattus norvegicus) Jantan yang Diinduksi Latihan Fisik Berlebih

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Karnia Tarnajaya ◽  
Alex Pangkahila ◽  
Wimpie Pangkahila ◽  
Ferbian M. Siswanto
Keyword(s):  
Physical Training ◽  
Rattus Norvegicus ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Male Rats ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Male Wistar Rats ◽  
The Mean

Abstract: This study was aimed to prove that administration of black cincau (Mesona palustris BL) leaf extract increased superoxide dismutase (SOD) levels of overtraining-induced male Wistar rats (Rattus norvegicus). This was a true experimental study using the randomized pretest-posttest control group design. Subjects were 16 male rats (Rattus norvegicus), 6-month old, Wistar strain, weighing 180-200 g, SOD level <39.3 U/mL (normal SOD level), divided into two groups: the control group (P0) and the treatment group (P1). The P0 group was given excessive physical training and aquadest for 14 days, while the P1 group was given excessive physical training and black cincau leaf extract of 54 mg/200 g BW daily for 14 days. The results showed that the mean SOD level before treatment (pretest) in the P0 group was 30.63±2.26 U/mL while in the P1 group was 31.31±2.52 U/mL (P >0.05). After 14-day treatment (posttest), the mean SOD level in the P0 group was 29.36±2.83 U/mL while in the P1 group was 41.31±2.35 U/mL (P <0.01). Further analysis showed that there was no change of SOD levels in the P0 group (P > 0.05), but in the P1 group there was a significant increase of SOD levels from 31.31±2.52U/mL to 41.31±2.35U/mL (P <0.01). Conclusion: Administration of black cincau leaf extract of 54 mg per 200 g of body weight increased SOD level of overtraining-induced male Wistar rats (Rattus norvegicus).Keywords: black cincau leaves, SOD, excessive physical activityAbstrak: Penelitian ini bertujuan untuk membuktikan bahwa pemberian ekstrak daun cincau (Mesona palustris BL) dapat meningkatkan kadar superoksida dismutase (SOD) tikus Wistar (Rattus norvegicus) jantan yang diinduksi pelatihan fisik berlebih. Jenis penelitian ialah eksperimental murni menggunakan randomized pretest-posttest control group design. Subjek penelitian ialah 16 ekor tikus putih jantan (Rattus norvegicus) galur Wistar berumur 6 bulan, sehat, berat badan 180-200 gr, dan kadar SOD <39,3 U/mL (kadar SOD normal), yang dibagi menjadi dua kelompok, yaitu kelompok kontrol (P0) dan kelompok perlakuan (P1), masing-masing berjumlah 8 ekor tikus. Kelompok P0 diberikan pelatihan fisik berlebih dan akuades secara sonde selama 14 hari, dan kelompok P1 diberikan pelatihan fisik berlebih dan ekstrak daun cincau dosis 54 mg/200 gr BB tikus selama 14 hari. Hasil penelitian menunjukkan bahwa rerata kadar SOD sebelum perlakuan (pretest) pada kelompok P0 ialah 30,63±2,26 U/mL, sedangkan pada kelompok P1 ialah 31,31±2,52 U/mL (P >0,05). Setelah perlakuan selama 14 hari (posttest), rerata kadar SOD pada kelompok P0 ialah 29,36±2,83 U/mL, dan pada kelompok P1 ialah 41,31±2,35 U/mL (P <0,01). Hasil analisis efek perlakuan menunjukkan bahwa pada kelompok P0 tidak terjadi perubahan kadar SOD (P >0,05), namun pada kelompok P1 terjadi peningkatan bermakna kadar SOD dari 31,31±2,52 U/mL menjadi 41,31±2,35U/mL (P <0,01). Simpulan: Ekstrak daun cincau dosis 54 mg/200 gr BB tikus dapat meningkatkan kadar SOD tikus Wistar (Rattus norvegicus) jantan yang diinduksi pelatihan fisik berlebih.Kata kunci: daun cincau, SOD, aktivitas fisik berlebih

scholarly journals Determination of acute toxicity parameters of the drug ‘MEGASTOP for dogs’ on white rats and mice

2020 ◽  
Vol 6 (2) ◽  
pp. 20-26
Author(s):  
O. L. Orobchenko ◽  
M. Ye. Romanko ◽  
M. O. Yaroshenko ◽  
I. O. Gerilovych ◽  
N. A. Zhukova ◽  
...  
Keyword(s):  
Body Weight ◽  
Acute Toxicity ◽  
Clinical Symptoms ◽  
Liver Volume ◽  
Male Rats ◽  
Toxic Substances ◽  
Main Experiment ◽  
Polyethylene Glycol 400 ◽  
White Rats ◽  
Rats And Mice

The experiments were performed on 58 males of nonlinear white rats 3–4 months old and weighing 180–200 g and 64 females of nonlinear white mice 2.5–3 months old and weighing 18–22 g. In the main experiment on rats, six experimental groups were formed, the animals of which were injected intragastrically with the drug ‘MEGASTOP for dogs’ (by absolute weight) in doses of 1,000.0, 2,000.0, 3,000.0, 4,000.0, 5,000.0, and 6,000.0 mg/kg body weight; in the main experiment on mice, seven experimental groups were formed, the animals of which were administered the drug in doses of 100.0, 500.0, 1,000.0, 1,500.0, 2,000.0, 2,500.0, and 3,000.0 mg/kg body weight. Control rats and mice were injected with 2.0 cm3 and 0.2 cm3 of polyethylene glycol-400, respectively. Clinical symptoms of poisoning with the drug ‘MEGASTOP for dogs’ of white rats (at doses of 2,000.0–6,000.0 mg/kg body weight) and mice (at doses of 1,000.0–3,000.0 mg/kg body weight) were refusals of food and water, loss of coordination, sitting in one place, a dose-dependent increase in depression with subsequent complete depression, lack of response to external stimuli and death on the first or fourth day after administration. During autopsy in rats and mice that died as a result of poisoning with the drug ‘MEGASTOP for dogs’, we recorded pallor of the mucous membranes of the mouth, trachea, pharynx, and esophagus; increase in heart volume, atrial blood supply; pulmonary hyperemia; uncoagulated blood; increase in liver volume, dark cherry color, flabby consistency; catarrhal inflammation of the mucous membrane of the small intestine. According to the results of determining the parameters of acute toxicity of the drug ‘MEGASTOP for dogs’ in the case of a single intragastric injection, LD50 for male rats is 3,384.98 ± 444.94 mg/kg, and for female mice — 2,025.88 ± 279.46 mg/kg body weight, which allows to classify it to class IV by the toxicity — low-toxic substances (LD50 — 501–5,000 mg/kg) and by the degree of danger to class III— moderately dangerous substances (LD50 — 151–5,000 mg/kg)

scholarly journals Toxicity assessment of a technical product of the triazole class

2020 ◽  
Vol 99 (11) ◽  
pp. 1276-1279
Author(s):  
Valery N. Rakitskii ◽  
Tatiana M. Epishina ◽  
Elena G. Chkhvirkiya
Keyword(s):  
Body Weight ◽  
The Body ◽  
Male Rats ◽  
Acute Oral Toxicity ◽  
Oral Toxicity ◽  
High Biological Activity ◽  
Experimental Animals ◽  
Technical Product ◽  
White Rats ◽  
Toxicological Studies

Introduction. Historically, pesticides are evaluated more strictly from a medical point of view than other chemicals. Since their features, such as deliberate introduction into the environment, the possibility of contact with them by large masses of the population, and the high biological activity determine their potential danger to humans. Purpose of research - study of the biological effect of a technical product derived from triazoles when it is repeatedly ingested orally in mammals (rats), establishment of inactive and active doses, justification of the permissible daily dose (DSD) for humans. Material and methods. In acute experiments, white rats were used, including 6 animals in the group. Tested dose: 500-4000 mg/kg of body weight. A chronic (12 months) experiment was performed on 80 male rats with a bodyweight of 180-190 g at the beginning of the study. Tested doses: 5.0; 16.0 and 55.0 mg/kg of body weight (1 control and 3 experimental animals, 20 individuals each). In the dynamics of the experiment, we observed the condition and behavior of animals, water, and food consumption, recorded the timing of death, changes in body weight, physiological, biochemical, and hematological indices. Results. Indices of the acute oral toxicity on the studied product LD50 male rats were 2250 ± 483 mg/kg body weight. The dose of 5.0 mg / kg of body weight was not found to cause significant changes in all studied indices. The doses of 16.0 and 55.0 mg/kg of body weight had a polytropic effect on the body in experimental animals. Discussion. The studied product for the acute oral toxicity refers to low-hazard compounds, the doses of 16.0 and 55.0 mg/kg of body weight has a polytropic effect on the mammalian body, causing changes in carbohydrate, lipid, and lipoprotein metabolism in the body of rats - was accepted as acting. The dose of 5.0 mg / kg of body weight, when administered in rats, there are no changes in all the studied parameters throughout the experiment, is accepted as invalid. Based on the inactive dose-5.0 mg/kg of body weight and taking into account the reserve factor of 100, we have scientifically justified DSD for a person at the level of 0.05 mg/kg. Summary. The conducted sanitary and Toxicological studies indicate the need to assess the toxicity of new technical products to the mammalian body, to increase the reliability of the developed hygiene standards in environmental objects and food products.

scholarly journals The Effect of Balimo (Zanthoxylum nitidum) Immersion Water On The Hematological Profile of White Rats (Rattus norvegicus) That Given Liquor (Ciu)

2021 ◽  
Vol 10 (1) ◽  
pp. 47-57
Author(s):  
Panca Buana Wijaya ◽  
Tyas Rini Saraswati ◽  
Silvana Tana ◽  
Sunarno Sunarno ◽  
Erma Prihastanti
Keyword(s):  
Rattus Norvegicus ◽  
Male Rats ◽  
Excessive Alcohol Consumption ◽  
White Rats ◽  
Excessive Alcohol ◽  
The Mean ◽  
Zanthoxylum Nitidum ◽  
The Difference ◽  
Antioxidant Effects ◽  
One Way Anova

Consumption of liquor such as Ciu in excessive doses can cause a decrease in hematological status. Balimo stem is an alternative treatment to improve hematological status due to excessive alcohol consumption because it contains alkaloids, flavonoids, and other secondary metabolic compounds, that have functions as antioxidant effects. This study aims to examine and analyze the effect of Balimo immersion water on the hematological status of mice with the observed variables, namely the erythrocytes count, hemoglobin levels, hematocrit value, and total count of leukocytes in rats that had been given Ciu. The study used 20 Rattus norvegicus male rats which were divided into 4 groups. The data were analyzed using one-way ANOVA. The results showed no significant differences (p <0.05) on the Balimo immersion water treatment, but if it was seen from the difference in the mean data of each variable, it could still be seen the difference from each treatment. In this study, it can be concluded that Balimo immersion water was able to improve the hematological status of rats that had been given Ciu liquor with a 0,2 mL dose.

Hypothalamic paraventricular nucleus lesions do not prevent anorectic effect of exercise in male rats

1990 ◽  
Vol 259 (3) ◽  
pp. R579-R584 ◽  
Author(s):  
S. Rivest ◽  
D. Richard
Keyword(s):  
Body Weight ◽  
Energy Balance ◽  
Paraventricular Nucleus ◽  
Wistar Rats ◽  
Energy Gain ◽  
Hypothalamic Paraventricular Nucleus ◽  
Male Rats ◽  
Hypothalamic Nucleus ◽  
Serum Corticosterone ◽  
Male Wistar Rats

The effects of a hypothalamic paraventricular nucleus (PVN) lesion on energy balance were investigated in exercise-trained rats. Male Wistar rats weighing initially 250 g were divided into four groups. Two groups of rats underwent a bilateral PVN lesion, whereas the two remaining groups were sham operated. The PVN lesions were done electrolytically. One group from each surgical treatment was exercised, while the other group was kept in sedentary conditions. Rats were exercised on a rodent motor-driven treadmill at moderate intensity, 1 h/day for 21 consecutive days. Food intake and body weight were measured each day during the study. At the end of the treatment period, rats were killed, and carcasses were analyzed for their energy content. Serum corticosterone was measured by a competitive protein-binding assay. Energy gain and energy intake were lower in exercised rats than in sedentary controls, regardless of whether they were sham or PVN lesioned. Concurrently, there was no difference in the energy gain between PVN-lesioned and sham-operated rats, despite the fact that PVN-lesioned rats ended the experiment with a larger body weight than the sham-lesioned animals. Serum corticosterone levels were lower in PVN-lesioned rats than in sham-lesioned rats. In conclusion, the present results indicate that the PVN, the hypothalamic nucleus predominantly controlling the pituitary-adrenal axis activity, is not a prominent structure in the regulation of energy balance in exercised male Wistar rats.

Practical Application of Microcapsulation for Toxicity Studies Using Bromodichloromethane as a Model Compound

1989 ◽  
Vol 8 (6) ◽  
pp. 1177-1187
Author(s):  
Y. Aida ◽  
M. Ando ◽  
K. Takada ◽  
J Momma ◽  
H. Yoshimoto ◽  
...  
Keyword(s):  
Body Weight ◽  
Olive Oil ◽  
Body Weight Gain ◽  
Male Rats ◽  
Toxicity Tests ◽  
Bile Duct Proliferation ◽  
Volatile Chemicals ◽  
Feeding Study ◽  
Toxicity Studies ◽  
Male Wistar Rats

Gelatin-starch syrup (food grade) microcapsulation was applied for toxicology studies of bromodichloromethane (BDCM). BDCM concentrations were stable for 120 days in the microcapsules and for 9 months when incorporated in the powder diet. BDCM concentration in the blood following the administration of microcapsules in olive oil suspension was retained at higher levels than when BDCM was administered as olive oil solution. Subsequently, the microcapsules were mixed in powder diet and were given at concentrations of microcapsulated BDCM of 0, 0.024, 0.072, and 0.215% to groups of 7 male Wistar rats for 1 month. For comparison, BDCM dissolved in olive oil was administered by gavage to groups of 7 male rats for 1 month at dosage levels adjusted to those in the feeding study (0, 20, 60, and 180 mg/kg body weight). Suppression of body weight gain was seen in the high-dosage groups in both the feeding and the gavage studies and was more severe in the former. Similar histopathologic lesions in the liver were shown in both studies, including vacuolization, swelling, and single necrosis of liver cells. Hepatic cord irregularity and bile duct proliferation were observed in the feeding study but not the gavage study. Serum biochemical changes, such as decreases in glucose, triglyceride, and cholinesterase levels, which reflected the histopathologic findings in the liver, were also observed in both studies. Accordingly, the microcapsulation process was proved to pose no qualitative toxic effects on toxicity of BDCM in short-term toxicity studies. It is concluded that the application of microcapsulation is useful for toxicity tests of volatile chemicals when incorporated into food.

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