scholarly journals The use of amniotic membrane in the repair of duodenal wounds in Wistar rats

2010 ◽  
Vol 25 (1) ◽  
pp. 18-23 ◽  
Author(s):  
Luciano Rodrigues Schimidt ◽  
Edson José Cardoso ◽  
Rogério Rodrigues Schimidt ◽  
Luiz Augusto Back ◽  
Maria Beatriz Schiazawa ◽  
...  
Keyword(s):  
Amniotic Membrane ◽  
Wistar Rats ◽  
Muscle Layer ◽  
Wall Structure ◽  
Duodenal Wall ◽  
Control Group ◽  
Human Amniotic Membrane ◽  
New Material ◽  
Group A ◽  
Group B

Purpose: In the search of a new material to repair duodenal wounds, a trial was conducted to assess the behavior of human amniotic membrane in the repair of the duodenal wall in rats. METHODS: Fifty Wistar rats weighing between 250 and 350g, male, were submitted to duodenotomy and randomly distributed into two groups. Group A (n=8) had no treatment and was used as the control group. In Group B (n=42) the duodenal wound was treated with a patch of human amniotic membrane. RESULTS: All animals in Group A died. In Group B no changes were observed with regards to death or the formation of duodenal fistula. All animals presented peritoneal adherences in the region on the duodenal wall repair and intestinal obstruction was observed in two animals. Healing of the duodenal wall in the region of the patch took place progressively as the post-operatory period increased, with regeneration of the mucosa and of the smooth muscle layer. CONCLUSION: From the clinical standpoint, the amniotic membrane proved to be a biological tissue which served as a temporary seal and allowed the wound to heal by second-intention, with re-establishment of the duodenal wall structure.

scholarly journals Effects of aqueous leaf extract of Corchorus olitorius on the testis and blood testosterone level of adult Wistar rats

2021 ◽  
Vol 10 (2) ◽  
pp. 024-030
Author(s):  
Godwin Chinedu Uloneme ◽  
Demian Nnabuihe Ezejindu ◽  
Darlington Cyprian Akukwu ◽  
Amadi Chibundu Chiekezie
Keyword(s):  
Body Weight ◽  
Wistar Rats ◽  
Day Treatment ◽  
Control Group ◽  
Corchorus Olitorius ◽  
Group A ◽  
Normal Rat ◽  
Group B ◽  
Calcium Iron ◽  
Group D

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).

scholarly journals Amniotic Membrane Transplantation in the Treatment of Primary Pterygium: A Comparative Study of Two Techniques

2014 ◽  
Vol 48 (1) ◽  
pp. 1-7
Author(s):  
Reema Bansal ◽  
R Sehgal
Keyword(s):  
Comparative Study ◽  
Amniotic Membrane ◽  
Free Edge ◽  
Amniotic Membrane Transplantation ◽  
Human Amniotic Membrane ◽  
Purse String ◽  
Group A ◽  
End To End ◽  
Group B ◽  
Primary Pterygium

ABSTRACT Purpose To compare two techniques of human amniotic membrane transplantation (AMT) following pterygium excision: (1) end to end suturing of the amniotic membrane graft (AMG) with the conjunctiva versus (2) a new technique of purse-string suturing of the AMG and tucking of AMG under the free edge of conjunctiva. Materials and methods Pterygium surgery with human AMT was done in 42 eyes with primary pterygium. Twenty four eyes (group A) underwent end-to-end suturing of AMG with conjunctiva. Eighteen eyes (group B) underwent purse-string suturing of AMG with underlying sclera with free edge of AMG tucked under conjunctiva on three sides. The two groups were compared in terms of the outcome measures, i.e. complete epithelialization time of AMG and recurrence of pterygium within 1 year. Results The complete epithelialization of AMG occurred in 21 days (range 14 to 28 days) and 14 days (range 7 to 21 days) in groups A and B respectively. In group A, 7 eyes (29.17%) developed recurrence. In group B, 2 eyes (11.11%) developed recurrence. Conclusion Purse string suturing and tucking of AMG resulted in faster epithelization of AMG and lower recurrences in comparison with end to end suturing of AMG in the management of primary pterygium. How to cite this article Bansal R, Jain AK, Sehgal R. Amniotic Membrane Transplantation in the Treatment of Primary Pterygium: A Comparative Study of Two Techniques. J Postgrad Med Edu Res 2014;48(1):1-7.

scholarly journals Human amniotic membrane: an improvement in the treatment of Medication-related osteonecrosis of the jaw (MRONJ)? A case–control study

2021 ◽  
Author(s):  
Mirko Ragazzo ◽  
Matteo Val ◽  
Giulia Montagner ◽  
Diletta Trojan ◽  
Stefano Fusetti ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Amniotic Membrane ◽  
Osteonecrosis Of The Jaw ◽  
Case Control ◽  
Human Amniotic Membrane ◽  
Surgical Wound ◽  
Resective Surgery ◽  
Significant Difference ◽  
Group A ◽  
Group B

AbstractThe aim of this article is to report the results obtained by the use of HAM in surgical wound healing and the reduction of relapse in patients affected by Medication-related osteonecrosis of the jaw (MRONJ).The study involved patients with the diagnosis of MRONJ, surgically treated between October 2016 and April 2019, in a case–control setting. Enrolled patients were randomly divided into 2 groups. One group will be treated with resective surgery and with the insertion of HAM patch (Group A), while the second group had been treated exclusively with resective surgery (Group B).The patients underwent MRONJ surgical treatment with the placement of amniotic membrane patches at the wound site. Data regarding the long-term complications/functions were evaluated at 3, 6, 12, and 24 months after surgery. Pain measurements were performed before the intervention (T0), 7(T1) and 30(T2) days after surgery. 49 patients were included in the study. 2 patients of GROUP A after 30 days since they were surgically treated showed persistent bone exposure. 5 patients of group B demonstrated a lack of healing of the surgical wound with the persistence of bone exposed to 30 days after surgery. Statistical analysis ruled out any difference in OUTCOME (relapse) between GROUP A and B (p = 0.23). However, the Fisher test highlighted a significant difference between the use of HAM and only surgical treatment in pain at rest (p = 0.032). The use of amniotic membrane implement the patient's quality of life and reduce pain perception. has a learning curve that is fast enough to justify its routine use.

scholarly journals Histological and hormonal studies of calabash chalk on ovarian function in adult female wistar rats

2017 ◽  
Vol 34 (03) ◽  
pp. 173-177
Author(s):  
A. Oyewopo ◽  
K. Obasi ◽  
K. Anumudu ◽  
E. Yawson
Keyword(s):  
Body Weight ◽  
Adult Female ◽  
Wistar Rats ◽  
Ovarian Function ◽  
Female Rats ◽  
Control Group ◽  
Treatment Groups ◽  
Female Wistar Rats ◽  
Group A ◽  
Group B

Abstract Introduction: Calabash chalk is a naturally occurring mineral, chiefly composed of fossilized sea shells. It is prepared from clay and mud mixed with other ingredients, including lead, arsenic, sand and wood ash. Clay consumption is correlated with pregnancy, and also to eliminate morning sickness in women. The aim of this study is to evaluate the effects of calabash chalk on the ovarian function in adult female Wistar rats. Methods: Eighteen (18) adult female Wistar rats. Group A served as the control group, group B received 40 mg/kg body weight of Non-salted calabash chalk while group C received 40 mg/kg body weight of Salted calabash chalk for 14 days. On day 15, the animals were sacrificed for histological and biochemical examination. Results: Results showed a significant (P< 0.05) reduction in follicle stimulating hormone (FSH) levels of the treatment groups when compared with the control group and an increase in luteinizing hormone (LH) levels of the treatment groups when compared with the control group. Histological examination of the ovaries showed severe deterioration of the ovarian follicles, necrosis and follicular atresia. Conclusion: Calabash chalk is toxic to ovarian function. These alterations have been shown to be the leading cause ofinfertility in female rats. Hence, proper monitoring, education, and regulation of the product is needed.

scholarly journals Effects of Moringa oleifera on the developing cerebrum of young wistar rats

1970 ◽  
Vol 8 (1) ◽  
Author(s):  
A Z Abijo ◽  
O O Adeeyo ◽  
O A Komolafe ◽  
O S Saka ◽  
V K Abodunrin
Keyword(s):  
Frontal Cortex ◽  
Wistar Rats ◽  
Moringa Oleifera ◽  
The Body ◽  
Brain Weight ◽  
Control Group ◽  
Significant Difference ◽  
Group A ◽  
High Doses ◽  
Group B

The study evaluated the effects of moringa oleifeira on the histoarchitecture of the cerebral cortex, the body weight and brain weight of young wistar rats. Fifteen (15) young wistar rats of both sexes weighing 20-30g were used for this study. They were randomly assigned into three groups (A, B and C) of five rats each. Group A served as control and received distilled water, group B and C received 100 mg/kg and 200mg/kg of moringa oleifera respectively. Treatment lasted for a period of 6 weeks (orally). Rats were weighed and sacrificed under ketamine (30 mg/kg) anaesthesia. The cerebrum was harvested and fixed immediately in 10% formolcalcium, for further histological processing. One-way ANOVA was used to analyze data, followed by Newan-Keuls (SNK) for multiple comparisons. The results showed that there was significant increase in the feed intake of animals in groups B and C starting from the 4th week of administration. There was no significant difference in the relative brain weight and the mean weight of the rats in group B and C when compared with group A. Histological findings revealed that there was slight distortion in group B and more distortion in group C when compared with the normal histoarchitecture in control group A. The results obtained from this study showed that high doses of Moringa oleifera caused damage of some parts of histoarchitecture of the frontal cortex of developing wistarKey words: MORINGA OLEIFERA; Cerebrum; Frontal Cortex

scholarly journals EFEK PEMBERIAN EKSTRAK KAYU MANIS (CINNAMOMUM BURMANNII) TERHADAP GAMBARAN HISTOPATOLOGI LAMBUNG TIKUS WISTAR YANG DIBERI ASPIRIN

2014 ◽  
Vol 2 (2) ◽  
Author(s):  
Janet Walangitan ◽  
Lily Loho ◽  
Meilany Durry
Keyword(s):  
Gastric Mucosa ◽  
Wistar Rats ◽  
Inflammatory Cells ◽  
Control Group ◽  
Therapeutic Effects ◽  
Cinnamon Extract ◽  
Group A ◽  
Cinnamomum Burmannii ◽  
Group B ◽  
Group D

Abstract: Cinnamon (Cinnamomum burmannii) is a traditional herbal plants which are often found in our daily life and has many benefits especially in health. This study were designed to know the effect of cinnamon on gastric mucosa given aspirin. This was an experimental research and used Wistar rats as the subject research.  The Wistar rats were randomly divided into 6 mice of control group and 9 mice of treatment group. Group A (K-) given pellets, group B (K+) given pellets and aspirin 150 mg/kgBB for 7 days, group C given pellets, aspirin 150 mg/kgBB and cinnamon extract 3 mg for 3 days, group D given pellets, aspirin 150 mg/kgBB for 7 days and given cinnamon extract 3 mg for 3 days, group E given pellets, aspirin 150 mg/kgBB for 7 days and given pellets only (without treatment) for 3 days. The results showed that aspirin cause gastric mucosa damage in group B (K+) compared with kelompok A (K-). Group C and D showed less inflammatory cells compared with group B (K+). Group E showed more inflammatory cells compared with group D. The study suggested that cinnamon extract has protective and therapeutic effects on gastric mucosa of Wistar rats. Keywords: cinnamon, gaster, aspirin.   Abstrak: Kayu manis (Cinnamomum burmannii) merupakan tanaman herbal tradisional yang banyak dijumpai dalam kehidupan sehari- hari dan memiliki banyak manfaat termasuk dalam bidang kesehatan. Penelitian ini bertujuan untuk mengetahui apakah ada efek pemberian kayu manis terhadap mukosa lambung yang diberi aspirin. Desain Penelitian yang digunakan adalah metode eksperimental dan subjek penelitian menggunakan tikus Wistar, yang terbagi atas 6 ekor kontrol dan 9 ekor perlakuan. Kelompok A (K-) diberikan pelet selama 7 hari, kelompok B (K+) diberikan pelet dan aspirin 150mg/kgBB selama 7 hari, kelompok C diberikan pelet, aspirin 150 mg/kgBB, ekstrak kayu manis 3 mg secara bersama- sama selama 7 hari, kelompok D diberikan pelet dan Aspirin 150 mg/kgBB selama 7 hari dilanjutkan dengan pemberian ekstrak kayu manis 3 mg selama 3 hari, kelompok E diberikan pelet dan Aspirin 150 mg/kgBB selama 7 hari dilanjutkan dengan pemberian pelet saja (tanpa perlakuan) selama 3 hari. Hasilnya menunjukkan aspirin menimbulkan kerusakan mukosa lambung pada kelompok B (K+) dibandingkan dengan kelompok A (K-). Kelompok C dan D menunjukkan sel-sel radang yang lebih sedikit dari kelompok B(kontrol +). Kelompok E menunjukkan sel- sel radang yang lebih banyak dibandingkan dengan kelompok D. Kesimpulan dari penelitian ini adalah kayu manis mempunyai efek protektif dan terapeutik terhadap mukosa lambung tikus Wistar. Kata kunci: kayu manis, lambung, aspirin.

scholarly journals GAMBARAN HISTOPATOLOGI LAMBUNG TIKUS WISTAR (Rattus norvegicus) YANG DIBERIKAN LENGKUAS (Alpinia galanga Willd) SETELAH DIINDUKSI OLEH ASAM MEFENAMAT

2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Juita Pasaribu ◽  
Lily Loho ◽  
Poppy Lintong
Keyword(s):  
Wistar Rats ◽  
Acute Inflammation ◽  
Inflammatory Cells ◽  
Control Group ◽  
Treatment Groups ◽  
Acute Gastritis ◽  
Group A ◽  
Mucosal Lining ◽  
Group B ◽  
Group D

Abstrak: Gastritis akut merupakan proses inflamasi yang bersifat akut dan biasanya terjadi pada bagian permukaan mukosa lambung. Penyakit ini biasanya disebabkan karena banyak faktor salah satunya yaitu penggunaan asam mefenamat dalam dosis yang berlebihan. Pada penelitian yang telah dilakukan sebelumnya didapatkan bahwa lengkuas dapat mengurangi terjadinya radang akut. Tujuan penelitian ini adalah untuk mengetahui gambaran histopatologi lambung tikus wistar yang diberikan lengkuas setelah diinduksi dengan asam mefenamat. Penelitian ini menggunakan metode eksperimental dengan sampel 11 ekor tikus wistar yang dibagi dalam 4 kelompok perlakuan. Kelompok A tidak diberikan perlakuan. Kelompok B diberikan asam mefenamat 10 mg selama 7 hari. Kelompok C diberikan asam mefenamat 10 mg selama 7 hari kemudian diberikan perasan lengkuas selama 7 hari. Kelompok D diberikan asam mefenamat 10 mg kemudian tidak diberikan perlakuan selama 7 hari. Hasil penelitian ini menunjukkan bahwa gambaran mikroskopik lambung tikus wistar pada kelompok C terdapat sel-sel radang PMN yang lebih sedikit dibandingkan dengan kelompok B dan D. Simpulan: lengkuas dapat mengurangi sel-sel radang PMN pada mukosa lambung yang diberikan dengan asam mefenamat. Kata kunci: Lengkuas, Asam Mefenamat, Gastritis akut.   Abstract : acute gastritis is an acute inflammatory process normally occurring in the mucosal lining of the stomach. This disease is caused by a variety of factors, one of which is the use of mefenamat acid in large doses. Previous research has revealed that galangal can be used to reduce acute inflammation. The objective of this research was to reveal the histopathological pictures of stomach of wistar rats that treatment with galangal after induce by mefenamat acid. This study is an experimental, employing 11 wistar rats which were assigned for four treatment groups. Group A was the control group in which the rats received no treatment. Rats in group B were administered mefenamat acid 10 mg for 7 days. In group C, the rats were also administered mefenamat acid 10 mg for 7 days and then received galangal distillation for 7 days. In group D, rats were administered mefenamat acid 10 mg for 7 days and then for 7 days without receiving anymore mefenamat acid or galangal distillation. Results showed that microscopic pictures of stomach of wistar rats in group C were presented with PMN inflammatory cells fewer than rats in group B and D. Conclusion: galangal can reduce PMN inflammatory cells in mucosal lining of the stomach exposed to mefenamat acid. Key words: galangal, mefenamat acid,  acute gastritis.

scholarly journals Use of the amniotic membrane to cover the peritoneal cavity in the reconstruction of the abdominal wall with polypropylene mesh in rats

2015 ◽  
Vol 42 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Rafael Calvão Barbuto ◽  
Ivana Duval de Araujo ◽  
Daniel de Oliveira Bonomi ◽  
Luciene Simões de Assis Tafuri ◽  
Antônio Calvão Neto ◽  
...  
Keyword(s):  
Abdominal Wall ◽  
Amniotic Membrane ◽  
Polypropylene Mesh ◽  
Control Group ◽  
Angiogenic Activity ◽  
Microscopic Evaluation ◽  
Significant Difference ◽  
Female Wistar Rats ◽  
Group A ◽  
Group B

OBJECTIVE: to evaluate the efficacy of the amniotic membrane used with polypropylene mesh against the formation of adhesions and its influence on healing. METHODS: twenty five female Wistar rats were anesthetized for creating a parietal defect in the anterior abdominal wall. Its correction was made with polypropylene mesh alone and associated with amniotic membrane. In the control group (n=11), the screen was inserted alone. In group A (n=7) we interposed the amniotic membrane between the screen and the abdominal wall. In group B, the amniotic membrane was placed on the mesh, covering it. After seven days, the animals were euthanized for macroscopic and microscopic evaluation of healing. RESULTS: adhesions were observed in all animals except one in the control group. Severe inflammation was observed in all animals in groups A and B and in three of the control group, with significant difference between them (A and B with p=0.01). Pronounced angiogenic activity was noted in one animal in the control group, six in group A and four in group B, with a significant difference between the control group and group A (p=0.002) and group B (p=0.05). The scar collagen was predominantly mature, except in five animals of the control group, with significant difference between the control group and group A (p=0.05) and group B (p=0.05). CONCLUSION: The amniotic membrane did not alter the formation of adhesions in the first postoperative week. There were also pronounced inflammation, high angiogenic activity and predominance of mature collagen fibers, regardless of the anatomical plane that it was inserted in.

scholarly journals Ameliorating Effects of Omega-3 Fatty Acids on Underlying Mechanisms of Type 2 Diabetes

2020 ◽  
pp. 1-7
Author(s):  
Abroo Fatima Qazi ◽  
Din Muhammad Shaikh
Keyword(s):  
Fatty Acids ◽  
Wistar Rats ◽  
Positive Control ◽  
Control Group ◽  
P Value ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Group A ◽  
Group B

Aims: The current study investigated the effects of polyunsaturated Omega-3-fatty acids on underlying mechanism linked with diabetes in streptozocin induced type 2 diabetic Wistar rats. Study Design:  Experimental analytical Study. Place and Duration of Study: The study was conducted at Isra University Hyderabad and Sindh Agricultural University, Tandojam between November 2016 and November 2018. Methodology: Seventy-five Wistar rats were assorted to five groups (15 rats per group): negative control group A and positive control group B and experimental groups C, D and E. Rats within group B,C,D, and E were injected with streptozocin (65 mg/kg body weight) to induce diabetes. Experimental groups C, D and E received Omega-3-fatty acid supplemented food in 0.3 g, 0.4 g and 0.5 g/kg bodyweight dosage for 12 weeks, respectively. Results: Omega-3-fatty acids treated rats showed significant decrease in blood glucose level and rise in serum insulin as compared to positive control group (p-value = 0.001). At the same time, they showed significantly increased expression of insulin gene along with transcription factors: PDX1 and NKX6.1 as compared to group A (p-value = 0.001). Conclusion: It is concluded that O3FAs reduces insulin resistance in Streptozocin-induced diabetic Wistar rats by modulating the transcription factors essential for insulin gene expression.

scholarly journals Antihyperglycemic effect of turmeric aqueous root extract and morphological changes in the pancreas of alloxan-induced hyperglycemic Wistar rats

2021 ◽  
Vol 11 (5-S) ◽  
pp. 19-24
Author(s):  
Samuel I. Ogenyi ◽  
Ezinne Imoko ◽  
Anthony A. Ngokere ◽  
Amalachukwu O. Ike
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Wistar Rats ◽  
Control Group ◽  
Root Extract ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Body Weights ◽  
Group A ◽  
Group B

Introduction: The study aims to evaluate the anti-hyperglycaemic effect of turmeric and the histological changes in the pancreas of adult Wistar rats. Materials and Methods: Forty adult Wistar rats were divided into four groups of [A-D] ten rats per group. Group A was normal control, group B was diabetic control, group C was treated with 300mg/kg weight of extract and group D was 500mg/kg body weight. All animals had access to food and water ad libitum.  Aqueous extract of turmeric was administered orally, once daily for 14 days. The rats were then anaesthetized with dichloromethane before sacrifice and sample collection. Pancreatic tissues were processed, stained using the hematoxylin and eosin (H&E) method. Blood glucose estimation was determined using the glucose oxidase method. Results: The mean body weights of the rats across groups were not statistically significant. Similarly, blood glucose levels across groups revealed a progressive statistically significant increase from group A to D and from day one to day 17. Pairwise comparison of group A with B, C and D showed a statistically significant increase but a comparison of Group B with C and D were not significant. Discussion: There was progressive body weight increase of the rats from day one to the final day across all groups and reduction in the blood glucose levels of the animals treated with 300mg/kg and 500mg/kg body weights, after seven days of treatment, but these, progressively increased with time even with treatment. The overall pancreas features indicate moderate inflammatory changes. Keywords: turmeric, anti- hyperglycemia, alloxan, Wistar rats

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