scholarly journals Neuroprotective effects of Buchholzia coriacea seed extract on sodium azide-induced neurotoxicity of the prefrontal cortex of Wistar rats

2019 ◽  
Vol 8 (2) ◽  
pp. 1635-1646
Author(s):  
T.A. Abayomi ◽  
O.S. Tokunbo ◽  
O David ◽  
O.O. Obembe ◽  
B.J. Dare

This study was designed to evaluate the therapeutic potentials and neuroprotective effects of methanol extract of Buchholzia coriacea (BC) seeds on sodium azide (NaN3) induced neurotoxicity of the prefrontal cortex in male Wistar rats. Neurotoxicity occurs as a result of exposure to neurotoxins in the environment, of which NaN3 is a potent neurotoxin. Thirty male Wistar rats were were randomly divided into 5 groups. Group A were administered with distilled water. Group B was administered with NaN3 for 28 days. Group C was administered with NaN3 for 28 days and thereafter B. coriacea for 21 days. Group D was administered with B. coriacea for 21 days and then NaN3 for 28 days. Group E was administered with only B. coriacea for 21 days. After treatment, neurobehavioral assessment was carried out after which the rats were sacrificed, and the prefrontal cortex excised. The prefrontal cortex was then processed for histological and biochemical analysis (SOD, MDA, GSH, and CAT). Pre-treatment and post-treatment with Buchholzia coriacea revitalized the cells of the Prefrontal cortex which were damaged by NaN3 exposure. Oxidative stress levels also decreased as a result of B. coriacea treatment, suggesting neuroprotective effects of Buchholzia Coriacea.Keywords: Buchholzia coriacea, Sodium Azide, Neurodegeration, Prefrontal cortex

Author(s):  
A. J. Ajibade ◽  
A. E. Okeleye ◽  
I. A. Ogunmola

Cobalt induces hypoxia in the brain which leads to oxygen deprivation resulting in cognitive disturbance and decreased motor control. This study evaluated the effect of Moringa oleifera extract on the cobalt chloride-induced cerebral cortex of adult male wistar rats.  40 male wistar rats weighing (90 ± 120g) were used for the study and they were divided into 5 groups with each group containing 8 rats. Group A served as control which received distilled water, Group B was treated orally with Cobalt chloride at dose 45 mg/kg, Group C received cobalt chloride 45 mg/kg + low dose of Moringa oleifera extract 250 mg/kg for 52 days, Group D treated with cobalt chloride 45 mg/kg + high dose of Moringa oleifera extract 500 mg/kg and Group E treated with 500 mg/kg Moringa oleifera extract only and rats were sacrificed on the 53rd day by cervical dislocation. The brain of each rat was removed and weighed before half was fixed in formol calcium for histological analysis and the second half was used for oxidative stress parameters. The mean body weight of the wistar rats in group C and E increased significantly (P <0.05) while it decreased significantly (P <0.05) in group D. The biochemical analysis shows a significant increase (P<0.05) in the level of MDA in group B and a significant decrease (P<0.05) in group E. additionally, NO level shows a significant increase (P<0.05) in group B compared with control. SDH activity decreased significantly in group C, D, and E. Microscopic examination of the cerebral cortex in group B, C and D showed degenerative changes compared with normal histological features in A and E. The study concluded that cobalt chloride induced cerebral cortical damage while administration of Moringa oleifera extract attenuated the toxic effect of cobalt chloride in wistar rats.


Author(s):  
A. E. Anyabolu ◽  
D. N. Ezejindu ◽  
B. N. Obinwa

The organophosphate, dichlorvous (Otapia-pia) formulated in varying concentrations as insecticides is utilized by several individuals in most remote places of Nigeria due to its affordable value and accessibility. However, this present study is conducted to investigate the adverse effect of the exposure of this substance on the respiratory system (lungs) of male albino wistar rats. Twenty (20) albino wistar rats comprising of all males weighing between 150-230g were divided into four groups (A-D) of five animals each. Group A received only water, feed, and served as the control. Group B was exposed to dichlorvous inhalation 3hrs daily for a period of two weeks; Group C was exposed to dichlorvous inhalation 6hrs daily for a period of two weeks; while Group D was exposed to dichlorvous inhalation 10hrs daily for a period of two weeks. Twenty four hours after the last exposure, the animals were sacrificed by cervical dislocation and dissected. The lungs were weighed and fixed in 10% formal saline for histological studies. The body weight of the experimental groups decreased insignificantly when compared with the control group. The lungs weight increased significantly when compared to the control groups. Histological observation revealed a moderate to severe effects on the lungs with severe consolidated inflammatory exudates (discharge of fluids from pores), a moderate intra-alveoli hemorrhage, and a severe dilation of alveolar septa which is evident as emphysematous changes. This result revealed that the exposure to dichlorvous causes distortion of the normal histological architecture of the lungs. Thus, showing that dichlorvous inhalation influences the normal physiologic mechanisms of the lungs.


2020 ◽  
Vol 26 (2) ◽  
pp. 93-98
Author(s):  
Dasofunjo Kayode ◽  
Obem O. Okwari ◽  
Ujong P. Ujong ◽  
Boniface U. Ati ◽  
Christopher O. Igwe

In the search for medicinal plants that will provide ameliorative measure to patients with anaemic disorders. The methanol extract of O. gratissimum leaf was administered to Wistar rats for its effect on haematological profile. Twenty-eight (28) male Wistar rats ranging from 180-200g was randomly picked and placed into plastic cages labeled A-D. Group A served as the control group while groups B-D was the test groups. The  animals in group A was administered with distilled water orally by gavage. Group B were administered 50mg/ kg body weight of methanol extract of O. gratissimum, group C were administered with 100mg/kg bodyweight while group D were administered with 200mg/body of methanol extract of O. gratissimum for 14 days. Blood was collected from all the test rats and control by cardiac puncture using disposable syringe and needle then dispensed into tubes containing EDTA. The extract displayed a significant increase (p<0.05) in RBCs, Hb, PCV and platelet counts. More so, the  extract produced no significant (p>0.05)difference in MCV, MCH, MCHC and RDW WBC counts when compared with the normal control .Therefore, it will be logical to conclude that the extract of O. gratissimum might be a panacea in the management of anaemic conditions when properly harnessed due to its erythropoietic, haematopoietic and thrombopoietic effect. Keywords: Anaemia, erythropoietic, haematopoietic, thrombopoietic and phytochemicals.


2016 ◽  
Vol 3 (5) ◽  
pp. 135
Author(s):  
Eweoya Olugbenga Olawale ◽  
Emmanuel Betty ◽  
Ajayi Abayomi

In an experiment to determine the effect of honey on ampiclox-induced testicular damage in rats, twenty (20) adult Wistar rats Rattus norvegicus (Berkenhout, 1769) (Rodentia: Muridae) weighing 150-250 g were divided into four groups (A-D) of five rats each. Group A (control) was administered with 0.5 mL distilled water, group B was given freshly prepared honey orally by gavage daily at a dose of 1.2 g/kg body weight (b.wt), group C received ampiclox (50 mg/kg b.wt) daily while group D received ampiclox (50 mg/kg b.wt) and honey (1.2 g/kg b.wt) for a duration of 14 days. Findings indicate that honey significantly reduced ampiclox-induced damage on the testicular histology. It also improved the serum testosterone level and sperm parameters. The study suggests that honey has a protective effect against testicular damage caused by ampiclox.


2008 ◽  
Vol 23 (2) ◽  
pp. 179-183 ◽  
Author(s):  
Robson Azevedo Dutra ◽  
Wemberton Martins Araújo ◽  
José Ivan de Andrade

PURPOSE: To assess the effects of Roux-en-Y jejunal limb length on gastric emptying and enterogastric reflux. METHODS: Seventy male Wistar rats were submitted to antrectomy with Roux-en-Y reconstruction and then were divided into two groups of 35 animals. Group A, short limb (7.5 cm) and Group B, standard limb (15 cm). Group A and B were subdivided into five subgroups each in order to study enterogastric reflux at 30 and 60 minutes and to evaluate gastric emptying at 5, 10 and 15 minutes. In order to measure gastric emptying and enterogastric reflux, radiotracers 99m Tc-Phytate and 99m Tc-DISIDA were respectively used. RESULTS: For gastric emptying, the radiotracer concentration was lower in Group A than in Group B after five minutes. The enterogastric reflux was present, but there were no significant differences between enterogastric reflux indexes concerning both A and B Groups. CONCLUSION: A standard Roux limb, besides being unable to protect the stomach from the enterogastric reflux, may become a functional barrier for gastric emptying.


Author(s):  
Carlos Edmundo Rodrigues FONTES ◽  
Ana Paula de ABREU ◽  
Aretuza Zaupa GASPARIM

ABSTRACT Background: Researches on Chagas disease still use several animals and rats, due to size and susceptibility were preferred by many authors. Aim: To develop an experimental model of megacolon in rats inoculated with the strain Y of Trypanosoma cruzi. Methods: Thirty male Wistar rats were distributed in three groups inoculated with different inoculants: Group A: 600000, Group B: 1000000 and Group C: 1500000 blood trypomastigotes of T. cruzi. Animals were sedated intramuscularly at zero inoculation time (T0) and 60 days after inoculation (T60), to perform the barium enema in order to evaluate the dilatation of the different segments of colon in a comparative study of the measurements obtained, using a digital caliper. Evidence of infection was performed by blood smear collected from the animal’s tail 18 days after inoculation with observation of blood forms. Results: Comparing the intestinal diameter of the inoculated animals with 60,0000 trypomastigotes in the T0 of infection with T60 days after the inoculation, significant dilatation was observed between the proximal, medial and distal segments (p<0.01), indicating the establishment of the megacolon model. In addition, comparing intestinal diameter between the different segments, with in the T0 of infection and the T60 after inoculation, significant alterations were observed (p<0.05). Conclusion: The proposed model was possible for in vivo studies of alterations due to infection by T. cruzi and functional alterations of the colon. In addition, the changes manifested in the colon are not directly proportional to the size of the inoculum, but to the time of infection that the animals were submitted, since the animals inoculated with 60,0000 blood forms were the ones which presented the most significant alterations.


2021 ◽  
Vol 10 (2) ◽  
pp. 024-030
Author(s):  
Godwin Chinedu Uloneme ◽  
Demian Nnabuihe Ezejindu ◽  
Darlington Cyprian Akukwu ◽  
Amadi Chibundu Chiekezie

Background: The extract of Corchorus olitorius has a reasonable content of vitamins A and C, calcium, iron and fibre, and therefore enjoys a universal application in the treatment of some disease conditions, even as the whole leaf is a very important component of food in so many cultures. Purpose: The study was designed to investigate the effect of Corchorus olitorius extracts on the testis of adult Wistar rats. Method: A total number of thirty two adult Wistar rats weighing between 180 and 200 grammes separated into four groups labeled A,B,C and D respectively were used for the study. Animals in group A which served as the control group were fed with the normal rat chow and water only. The group B rats were administered 100mg/kg body weight of aqueous extract of Corchorus olitorus; while those in group C were administered 500mg/kg body weight of the extract. The group D rats received 1000mg/kg body weight of the extract. For a period of four weeks, the different experimental animal groups received the respective aforementioned treatments once daily, around nine- o’clock in the morning through oral intubation. At the end of the 28 day treatment, the animals were sacrificed and the testes harvested for histological, investigation, and through cardiac puncture, blood samples for some hormonal studies was also collected and investigated using standard laboratory standards. Results: Observations made showed that the extract produced no histological distortions, degenerative or defective effects on the testicular tissues. The testosterone levels of group B, C, and D rats were observed to be significantly higher (P<0.005) than that of the group A (control group).ound: The extract of Corchorus olitorius has a reasonable content of vitamins A and C, calcium, iron and fibre, and therefore enjoys a universal application in the treatment of some disease conditions, even as the whole leaf is a very important component of food in so many cultures. Purpose: The study was designed to investigate the effect of Corchorus olitorius extracts on the testis of adult Wistar rats. Method: A total number of thirty two adult Wistar rats weighing between 180 and 200 grammes separated into four groups labeled A,B,C and D respectively were used for the study. Animals in group A which served as the control group were fed with the normal rat chow and water only. The group B rats were administered 100mg/kg body weight of aqueous extract of Corchorus olitorus; while those in group C were administered 500mg/kg body weight of the extract. The group D rats received 1000mg/kg body weight of the extract. For a period of four weeks, the different experimental animal groups received the respective aforementioned treatments once daily, around nine- o’clock in the morning through oral intubation. At the end of the 28 day treatment, the animals were sacrificed and the testes harvested for histological, investigation, and through cardiac puncture, blood samples for some hormonal studies was also collected and investigated using standard laboratory standards. Results: Observations made showed that the extract produced no histological distortions, degenerative or defective effects on the testicular tissues. The testosterone levels of group B, C, and D rats were observed to be significantly higher (P<0.005) than that of the group A (control group).


2014 ◽  
Vol 31 (01) ◽  
pp. 028-032
Author(s):  
A. Okunlola ◽  
C. Okunlola ◽  
C. Okani ◽  
O. Adewole ◽  
D. Ofusori ◽  
...  

Abstract Introduction: Arteether™, a derivative of artemisinin, is among the recent drugs that have given renewed hope for combating malarial menace. The present study investigated the effects of arteether™ on the histology of the retina and cerebellum of Wistar rats. Materials and Methods: Twenty adult albino Wistar rats weighing 150-200 g, were randomly divided into four groups (A, B, C and D) of five animals each and used for this study. Group A rats were given intramuscular (i.m.) arteether™ (3 mg/kg b.w.) daily for 3 days. Group B rats were given i.m. arteether™ (6 mg/kg b.w.) daily for 3 days. Group C rats were also given i. m. of arteether™ (3 mg/kg b. w.) daily for 3 days, and the same dose was repeated at two-weekly intervals for 4 further weeks; while Group D rats which received normal saline (0.9 % w/v, 3 ml/kg b.w.), served as controls. At the end of the experiment, the rats were sacrificed by cervical dislocation. The retina and cerebellum were excised and processed routinely for histopathology changes, using haematoxylin and eosin stain (H & E), as well as Nissl stain. Results: Results obtained showed normal cellular components of the retina and cerebellum in all groups, and no cyto-pathological changes were observed. Conclusion: Thus, this study showed that under light microscopic examination, therapeutic doses of arteether™ caused no significant cyto-pathologic changes in the retina and cerebellum of Wistar rats.


2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Denty M. Sidabutar ◽  
Carla F. Kairupan ◽  
Meilany Durry

Abstract: Clove (Syzygium aromaticum) contains eugenol, a phenolic compound, which has been suggested to possess antioxidant activity. This compound is suspected to be able to minimize damage to the liver cells caused by drugs such as paracetamol. This study aimed to observe the effects of clove leaf extract on histopathological features of Wistar rat liver tissue induced with toxic doses of paracetamol. This was an experimental laboratory study. Subjects were 24 male Wistar rats. The dose of clove leaf extract was 200 mg/day (single dose) and of paracetamol 50 mg/day (single dose) orally. Group A (negative control) was given no treatment for 14 days. Group B was given paracetamol for 14 days. Group C was given clove leaf extract for 7 days and then added with paracetamol for 7 days. Group D was given clove leaf extract and paracetamol simultaneously for 14 days. Group A showed normal histological feature of liver cells. Group B showed liver cell damage induced by paracetamol. Group C showed regeneration of liver cells, but there were still some necrosis and fatty liver cells. Group D showed regeneration of liver cells meanwhile cell necrosis was hardly found. Conclusion: Clove leaf extract could improve the histopathological changes of liver tissues of Wistar rats due to administration of paracetamol at toxic dose. This improvement was manifested as better regeneration of liver cells than that of rats not treated with clover leaf extract. Keywords: clove, paracetamol, liver Abstrak: Cengkeh (Syzygium aromaticum) mengandung senyawa eugenol, suatu komponen fenolik yang memiliki aktivitas antioksidan. Senyawa eugenol diduga dapat meminimalisir kerusakan sel hati yang antara lain disebabkan oleh obat-obatan yang berefek hepatototoksik seperti parasetamol. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian ekstrak daun cengkeh terhadap gambaran histopatologik hati tikus wistar yang diinduksi dengan parasetamol dosis toksik. Jenis penelitian ini eksperimental laboratorik. Subjek penelitian 24 ekor tikus wistar. Pada penelitian ini digunakan ekstrak daun cengkeh 200 mg/hari (dosis tunggal) dan obat parasetamol 50 mg/hari (dosis tunggal) per oral. Subjek penelitian dibagi menjadi 4 kelompok. Kelompok A (kontrol negatif) tidak diberi perlakuan selama 14 hari. Kelompok B diberikan parasetamol selama 14 hari. Kelompok C diberikan ekstrak daun cengkeh selama 7 hari kemudian ditambahkan parasetamol secara bersamaan selama 7 hari. Kelompok D diberikan ekstrak daun cengkeh dan parasetamol secara bersamaan selama 14 hari. Kelompok A memperlihatkan gambaran histopatologik sel hati normal. Kelompok B memperlihatkan kerusakan sel hati berupa nekrosis dan perlemakan sel. Kelompok C memperlihatkan regenerasi sel hati namun masih terdapat nekrosis dan perlemakan sel hati. Kelompok D memperlihatkan regenerasi sel hati yang luas dan hampir tidak ditemukan nekrosis sel. Simpulan: Pemberian ekstrak daun cengkeh memperlihatkan perbaikan gambaran histopatologik jaringan hati tikus wistar yang mengalami kerusakan akibat parasetamol dosis toksik berupa regenerasi sel hati yang lebih baik dibandingkan dengan yang terlihat pada jaringan hati tikus wistar yang tidak diberi ekstrak daun cengkeh.Kata kunci: cengkeh, parasetamol, hati


2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Pamela K. Sari ◽  
Poppy M. Lintong ◽  
Lily L. Loho

Abstract: Androgenic-anabolic steroids (AAS) are synthetic derivatives of the male hormone endogenous testosterone that stimulates anabolic (protein synthesis) and androgenic effects (masculinization). Long-term usage of AAS can result in liver damage. However, physiological concentrations of testosterone can stimulate protein synthesis which lead to an increase in muscle size, body mass, and endurance. This study aimed to determine the histopathology of liver and skeletal muscles of wistar rats that were given low dose and high dose injection of AAS. Subjects were 21 wistar rats divided into 7 groups. Group A was given standard pellets for 56 days (negative control), terminated on days 29,43, and 57. Group B was treated with low-dose AAS injection and standard pellets for 28 days, terminated on day 29. Group C was treated with low-dose AAS injection and standard pellets for 42 days, terminated on day 43. Group D was treated with low-dose AAS injection and standard pellets for 56 days, terminated on day 57. Group E was treated with high-dose AAS injection and standard pellets for 28 days, terminated on day 29. Group F was treated with high-dose AAS injection and standard pellets for 42 days, terminated on day 43. Group G was treated with high-dose AAS injection and standard pellets for 56 days, terminated on day 57. The results showed that the histopathology of liver and muscles in group A was still normal. In group B, the architecture of liver was still normal with a few inflammatory cells around the Kiernan triangle while in muscle the ratio of myofibril diameter was 1.28:1. In group C and group D, there were widening of the hepatic artery, bile duct, and portal vein containing blood fibrin, and inflammatory cells around the Kiernan triangle. The ratio of myofibril diameter was 1.43:1 in group C and 2.14:1 in group D. In group E, F and G, there were micro-vesicular fatty cells in the peripheral part of the liver meanwhile the myofibril diameter ratio of the muscles in group E was 1.43:1, group F 2.1:1, and group G 2.28:1. Conclusion: Administration of AAS injection of low dose and high dose for less than 4 weeks could result in inflammation, dilation of the portal vein, hepatic artery and bile duct meanwhile administration of AAS for over 4 weeks could ressult in focal fatty liver (steatosis). The administration of AAS injection of low dose and high dose for 4,6 and 8 weeks reslutid in enlargement of skeletal muscle (muscle hypertrophy).Keywords: androgenic-anabolic steroids, liver, skeletal muscleAbstrak: Anabolik Androgenik Steroid (AAS) adalah derivat sintetis dari hormon sex testosteron endogen pria, yang merangsang efek anabolik (sintesis protein) dan androgenik (maskulinisasi). Penggunaan AAS jangka panjang dapat mengakibatkan terjadinya kerusakan hati namun secara fisiologi testosteron dapat menstimulasi sintesis protein sehinggaberdampak pada peningkatan ukuran otot, massa tubuh dan ketahanan tubuh. Penelitian ini bertujuan untuk mengetahui gambaran histopatologi hati dan otot rangka wistar yang diberikan AAS injeksi dosis rendah dan dosis tinggi. Subjek penelitian 21 ekor wistar yang dibagi menjadi 7 kelompok. Kelompok A diberi pelet standar selama 56 hari (kontrol negatif), terminasi pada hari ke-29, 43, dan 57. Kelompok B diberi perlakuan AAS injeksi dosis rendah dan pelet standar selama 28 hari, terminasi hari ke-29. Kelompok C diberi AAS injeksi dosis rendah dan pelet standar selama 42 hari, terminasi hari ke-43. Kelompok D diberi AAS injeksi dosis rendah dan pelet standar selama 56 hari, terminasi hari ke-57. Kelompok E diberi perlakuan AAS injeksi dosis tinggi dan diberi pelet standar selama 28 hari, terminasi hari ke-29. Kelompok F diberi perlakuan AAS injeksi dosis tinggi dan diberi pelet standar selama 42 hari, terminasi hari ke-43. Kelompok G diberi perlakuan AAS injeksi dosis tinggi dan diberi pelet standar selama 56 hari, terminasi hari ke-57. Hasil penelitian menunjukkan pada kelompok A didapatkan gambaran histopatologi hati normal sedangkan pada otot tidak terdapat perubahan. Pada kelompok B didapatkan arsitektur hati masih normal dengan sedikit sel radang disekitar segitiga Kiernan sedangkan pada otot terlihat diameter miofibril ratio 1,28:1. Pada kelompok C dan D terlihat pelebaran arteri hepatika, duktus biliaris, dan vena porta yang berisi fibrin darah, serta sel-sel radang di sekitar segitiga Kiernan. Pada kelompok C diameter miofibril ratio 1,43;1 dan pada kelompok D 2,14:1. Pada kelompok E, F dan G terdapat sel-sel perlemakan mikrovesikuler di perifer sedangkan pada otot diameter miofibril ratio kelompok E 1,43:1, kelompok F 2,1:1, dan kelompok G 2,28:1. Simpulan: Pada pemberian AAS injeksi dosis rendah dan dosis tinggi kurang dari 4 minggu terjadi peradangan hati, pelebaran vena porta, arteri hepatika dan duktus biliaris sedangkan lebih dari 4 minggu terdapat perlemakan (steatosis) fokal hati. Pemberian AAS injeksi dosis rendah dan tinggi dalam waktu 4,6 dan 8 minggu menunjukkan pembesaran otot rangka (hipertrofi otot).Kata kunci: AAS, hati, otot rangka


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