scholarly journals Protective effect of LIF-huMSCs on the retina of diabetic model rats

2021 ◽  
Vol 14 (10) ◽  
pp. 1508-1517
Author(s):  
Shan-Na Chen ◽  
◽  
Ying-Xue Ma ◽  
Song Chen ◽  
Guang-Hui He ◽  
...  
Keyword(s):  
Diabetic Rats ◽  
Control Group ◽  
Diabetic Model ◽  
Group A ◽  
Retinal Structure ◽  
Hs Crp ◽  
Group B ◽  
And Function ◽  
Group D ◽  
Control Group Group

AIM: To investigate the protective effect of human umbilical cord mesenchymal stem cells (hUCMSCs) modified by the LIF gene on the retinal function of diabetic model rats and preliminarily explore the possible mechanism. METHODS: A stably transfected cell line of hUCMSCs overexpressing leukemia inhibitory factor (LIF) was constructed. Overexpression was verified by fluorescent quantitative polymerase chain reaction (qPCR). Forty-eight adult Sprague-Dawley rats were randomly divided into a normal control group (group A), streptozotocin-induced diabetic control group (group B), diabetic rats at 3mo injected with empty vector-transfected hUCMSCs (group C) or injected with LIF-hUCMSCs (group D). Four weeks after the intravitreal injection, analyses in all groups included retinal function using flash electroretinogram (F-ERG), retinal blood vessel examination of retinal flat mounts perfused with fluorescein isothiocyanate-dextran (FITC-dextran), and retinal structure examination of sections using hematoxylin and eosin staining. Expression levels of adiponectin (APN), high-sensitivity C-reactive protein (hs-CRP), and neurotrophin-4 (NT-4) in each group was detected using immunohistochemistry, PCR, Western blotting, and ELISA, respectively. RESULTS: A stable transgenic cell line of LIF-hUCMSCs was constructed. F-ERG and FITC-dextran examinations revealed no abnormalities of retinal structure and function in group A, severe damage of the retinal blood vessels and function in group B, and improved retinal structure and function in group C and especially group D. qPCR, ELISA, and Western blot analyses revealed progressively higher APN and NT-4 expression levels in groups B, C, and D than in group A. hs-CRP expression was significantly higher in group B than in groups A, C, and D, and was significantly higher in group C than in group D (P<0.05). CONCLUSION: LIF-hUCMSCs protect the retina of diabetic rats by upregulating APN and NT-4 expression and downregulating hs-CRP expression in the retina.

scholarly journals Effect of Liposome Curcumin Combined with PDGF-BB on Tendon Healing in Rats

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Wang TL ◽  
◽  
Wu WJ ◽  
Gu JX ◽  
Hou XR ◽  
...  
Keyword(s):  
Tendon Healing ◽  
Tendon Injury ◽  
Control Group ◽  
Combined Application ◽  
Healthy Control ◽  
Group A ◽  
The Difference ◽  
Group B ◽  
Group D ◽  
Control Group Group

Objective: To study the effect of liposomal curcumin combined with PDGFBB on tendon healing after tendon injury in rats and explore its mechanism. Methods Thirty-six rats were randomly divided into four groups: healthy control group (group A), liposomal curcumin group (group B), PDGF-BB group (group C) and combined application group (group D). The rats in each group were divided into groups according to the experimental group. At the 4th and 8th weeks after operation, the general morphology, histomorphology, biomechanics and other aspects of rat tendon were detected and statistically analyzed. Results: The degree of tendon adhesion in group B and D was significantly less than that in group A and C, and the difference was statistically significant. The biomechanical test showed that the tendons in group C and D had higher strength and could withstand greater stress than those in group A and B. Conclusion: Liposome curcumin combined with PDGF-BB can significantly reduce the degree of adhesion after tendon injury, increase the strength of tendon healing, and significantly promote tendon healing.

scholarly journals MICROSCOPIC CHANGES IN THE LIVER OF DEVELOPING RATS EXPOSED TO VALPRIOC ACID

1969 ◽  
Vol 5 (2) ◽  
pp. 685-688
Author(s):  
MUHAMMAD KHAN ◽  
INAYAT ULLAH ◽  
NAIK ZADA ◽  
MARIYA HIDAYAT
Keyword(s):  
Valproic Acid ◽  
Control Group ◽  
Central Vein ◽  
Microscopic Structure ◽  
Pregnant Rats ◽  
Histological Changes ◽  
Group A ◽  
Group B ◽  
Group D ◽  
Control Group Group

BACKGROUND: Valproic Acid (VPA) is a broad - spectrum antiepileptic drug. Its use duringpregnancy has been associated with hapatotoxicity. This study was designed to assess the effects of VPAon the Microscopic structure of the Liver of developing rats exposed to the drug during varioustrimesters of pregnancy.OBJECTIVE: to evaluate the histological changes in developing liver in rats exposed to valproic acidduring different fetal periods. To correlate the extent of liver injury during various developmentalperiods.MATERIAL AND METHODS: In this Experimental Study pregnant rats were divided in to fourgroups A, B, C and D. Group D(n=10) was kept as control group. Group A (n=10) was given VPA in adose of 500 mg/kg/day intraperito-nealy (I/P) on days 3, 4, 5 of gestation. Group B (n=10) received thesame dose I/P on days 8, 9, 10 of gestation while Group C (n=10) received the same dose I/P on days16, 17, and 18 of gestation. On day 21 rats were euthanized and liver of the fetuses were dissected outfor examination.RESULTS: The central vein was significantly dilated in all the groups. Also, there was significantincrease in the size of hepatocytes in all the groups. Moreover, significant inflammation and congestionin portal areas and congestion in sinusoids were observed in all the experimental groups.CONCLUSION: VPA use during pregnancy produces hepatotoxicity in developing rats.KEY WORDS: Valproic Acid, Developing rats, Hepatotoxicity.

scholarly journals Zeolite as a Bone Bio-Modifier Carrier: An In-Vitro Study

2019 ◽  
Vol 9 (1) ◽  
pp. 126
Author(s):  
Mobina Mousavi ◽  
Azadeh Esmaeil Nejad ◽  
Erfan Shamsoddin ◽  
Mohammad Mehdi Golabgiran ◽  
Behzad Houshmand
Keyword(s):  
In Vitro Study ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Alizarin Red ◽  
Group A ◽  
Group B ◽  
And Function ◽  
Group D

Background: Zeolite is a microporous aluminosilicate compound which has been successfully used in tissue engineering. The effects of Zeolite on the morphology and functions of pre-osteoblastic MG-63 cells as new bone enhancer material is still unclear. Methods: In this vitro experimental study, MTT and Alizarin red staining test were performed on six groups of MG-63 cells which differed in Zeolite (Z) concentration and the presence or absence of Alloplast extract (A). Group A: 0.1&mu;g/mL Z+A, Group B: 0.1&mu;g/mL Z without A, Group C: 0.2&mu;g/mL Z+A, Group D: 0.2&mu;g/mL Z without A, Group E: 0.3&mu;g/mL Z+A, Group F: 0.3&mu;g/mL Z without A. There were also three control groups as positive control, negative control, and Alloplast control based on each related test. The data were analyzed by SPSS 20 via one-way ANOVA and Welch test. (P&lt;0.05). Results: At 24 hours, results showed that solutions with 0.1&mu;g/mL, 0.2&mu;g/mL, and 0.3&mu;g/mL Zeolite with or without Alloplast had significantly higher proliferation rates than positive control (distilled water) groups without Alloplast (p&lt;0.001). At 72hours time point, the results showed significantly higher proliferation rates in the solutions with 0.1&mu;g/mL, 0.2&mu;g/mL, and 0.3&mu;g/mL Zeolite with or without Alloplast compared to the positive control group without Alloplast (p&lt;0.001). Conclusions: Zeolite can increase proliferation of MG-63 cells without presence of Alloplast; It seems that combination of Zeolite with Alloplast maybe enhancing proliferation and function of MG-63 cells.

Preparation of Let-7b Nanocomposite and Its Effect on the Level of Inflammatory Factors in Cerebrospinal Fluid of Purulent Meningitis

2021 ◽  
Vol 13 (9) ◽  
pp. 1830-1838
Author(s):  
Conghui Shi ◽  
Xinyu Wu ◽  
Yigang Yu ◽  
Wusheng Lu ◽  
Wenge Fang ◽  
...  
Keyword(s):  
Particle Size ◽  
Cerebrospinal Fluid ◽  
Inflammatory Factors ◽  
Control Group ◽  
E Coli ◽  
Purulent Meningitis ◽  
Group A ◽  
Group B ◽  
Group D ◽  
Control Group Group

This study was to explore the effect and mechanism of Let-7b nanocomposite on the expression of inflammatory factors in the cerebrospinal fluid (CSF) of purulent meningitis. 45 patients with purulent meningitis (PM) were selected as observation group (group A), and 38 patients with normal CSF without central nervous system diseases were selected as the control group (group B). The CSF of the two groups were collected to detect the inflammatory factors interleukin-8 (IL-8), macrophage inflammatory protein-1α (MIP-1α), matrix metalloproteinase 9 (MMP9), interleukin 1β (IL-1β), tumor necrosis factor-α (TNF-α), and Let-7b level with the double antibody sandwich enzyme-linked immunosorbent assay (ELISA). The Let-7b nanocomposite was prepared, and its morphology, particle size, and Zeta potential were analyzed. In addition, the degradation kinetics, cytotoxicity, and phagocytic efficiency (PE) of Let-7b nanocapsules were detected. 36 healthy adult New Zealand (NZL) rabbits were randomly grouped into a control group (group C) (0.9% normal saline (NS)), a model group (Escherichia coli (E. coli) modeling, group D), and a test group (E. coli modeling + Let-7b nanocapsules, group E), with 12 rabbits in each group. The changes of inflammatory factors in CSF of the three groups were detected and compared. It was found that the expression levels of IL-8 and IL-1 β in the group A were much higher than those in the group B (P < 0.01), and the MMP9 and TNF-α levels in the group B were much lower in contrast to the group A (P < 0.001). The expression of Let-7b in the group A was lower obviously in contrast to the group B (P < 0.001). Let-7b nanocapsules were irregularly spherical, with an average particle size (APS) of 23.1 nm, a polydispersity index (PDI) of 0.232, and the Zeta potential of around +15 mV. Let-7b nanocapsules showed obvious polymer shell absorption peaks at 1,015 cm-1, 1,228 cm-1, and 1,547 cm-1. The IL-8 and IL-1β levels of the group D were greatly different from those in the other two groups (P < 0.01). The levels of TNF-α and MMP9 in the group D were greatly different in contrast to the group C (P < 0.001) and the group E (P < 0.01). It indicated that Let-7b nanocomposite could lower the expression levels of IL-8, IL-1β, MMP9, and TNF-α in the CSF of patients with purulent meningitis dramatically, which provides a reliable basis for immunotherapy of purulent meningitis with Let-7b.

scholarly journals Zingerone ameliorates tellurium induced nephrotoxicity by abating elevated serum markers in the rats

2020 ◽  
Vol 21 (1&2) ◽  
pp. 125-129
Author(s):  
Mohammad Firoz Alam ◽  
Saeed Alshahrani ◽  
Essam Alamir ◽  
Mohammad Abdurrhman Alhazmi ◽  
Tarique Anwer ◽  
...  
Keyword(s):  
Elevated Serum ◽  
Treated Group ◽  
Positive Control ◽  
Serum Markers ◽  
Control Group ◽  
Sodium Tellurite ◽  
Group A ◽  
Group B ◽  
Group D ◽  
Control Group Group

The present study was designed to investigate the nephrotoxicity of tellurium (Sodium tellurite) in rats through evaluating the level of kidney functional marker enzymes and its treatment with Zingerone. Rats were divided into four groups, Group-A (control group), Group-B (tellurium treated group), Group-C (tellurium + Zingerone treatment group), and Group-D (Zingerone treatment alone) and each group have six animals. Tellurium was given in Group-B and Group-C at the dose of 8.3mg/kg bodyweight daily orally for 15 days, while Zingerone of 100mg/kg body weight was given in Group-C as pre- and post-treatment orally for 15days. Group-D was given alone Zingerone of 100mg/kg bodyweight; orally for 15 days. Results revealed that tellurium administration significantly (P<0.001) increased the serum markers (ALP, BUN, Uric Acid and Creatinine) in Group-B as a compared to Group-A while the treatment with Zingerone significantly (P<0.001) decreased these elevated serum markers in Group-C as comparison to Group-B. There were no changes observed in the positive control (Zingerone administered Group-D). Thus, the present finding confirmed that the Zingerone plays a potential role in reducing nephrotoxicity against tellurium by abating elevated serum markers in rats.

scholarly journals Evaluation of Antioxidants Supplementation on Renal, Hepatic and Cardiac Function Markers in Alloxan Induced Diabetes Mellitus Wister Rats

2020 ◽  
pp. 23-39
Author(s):  
Adline Erinma Ben-Chioma ◽  
Abiola Abubakar Sheudeen ◽  
Nwidum Leyiga Dornu ◽  
Ichebadu Isaac ◽  
Edna Ogechi Nwachuku ◽  
...  
Keyword(s):  
Vitamin E ◽  
Troponin I ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Cardiac Tissues ◽  
Diabetic Control Group ◽  
Group A ◽  
Group D ◽  
Control Group Group

Aim: To evaluate antioxidants supplementation (selenium and vitamin E) on renal, hepatic and cardiac function markers in alloxan induced diabetes mellitus in Wister rats. Study Design: Rats were randomly assigned into 5 groups with each group consisting of 5 rats. The treatment pattern involved the induction of hyperglycaemia in the rats followed by oral administration of selenium and vitamin E supplements singularly and in combination. The groups are as follow: Group A: Alloxan induced diabetic Rats treated with selenium (0.02 mg/kg) for 35 days. Group B: Alloxan induced diabetic Rats treated with Vitamin E (70.0 mg/kg) for 35 days. Group C: Alloxan induced diabetic Ratstreated with both Selenium and Vitamin E (0.02 mg/kg + 70.0 mg/kg) for a period of 35 days. Group D:  Alloxan induced diabetic Rats without any treatment (Positive control) for 35 days. Group E: Rats in this group were fed normally for 35 days without induction and treatment (Negative control). Place and Duration of the Study Area: The study was carried out in the Department of Medical Laboratory Science, Rivers State University, Port Harcourt, Nigeria over a period of 9 months (January, 2019 – September, 2019). Methodology: After the inducement of hyperglycaemia in the rats (Group A – D) with a single dose intraperitoneal (IP) injection of 140mg/kg body weight of alloxan hydrate, treatment with the antioxidants (selenium and Vitamin E) was performed for 35 days. At the end of 35 days, the animals were allowed to fast for 18 hours and sacrificed. Plasma specimen collected was used for the assay of Na+, K+, HCO3, urea, creatinine, cardiac troponin I, LDH, AST, ALT, ALP, bilirubin, protein, albumin globulin and MDA while renal, hepatic and cardiac tissues collected were used for histological investigations. Results: Significantly lower values were seen in Na+, K+, HCO3 and conjugated bilirubin in the diabetic rats without antioxidants supplementation (group D) when compared to diabetic rats with antioxidants supplementation of selenium and vitamin E (group A, B & C) and non-diabetic control group (group E). There were no significant differences seen when Group A, B, C and E were compared among one another. Also, significantly higher values were seen in AST, ALT, ALP, Unconjugated bilirubin, urea, creatinine, cardiac troponin I and MDA in the diabetic rats without antioxidants supplementation (group D) when compared with diabetic rats treated with antioxidants supplements of selenium and vitamin E (group A, B & C) and non-diabetic control group (group E). However, no significant differences were seen in LDH, total protein, albumin, globulin and total bilirubin at P=.05. Histological findings in the kidneys, liver and cardiac tissues of the rats treated with antioxidants supplement showed recovery tendencies compared to diabetic rats without antioxidant supplementation. Conclusion: Results obtained suggest that the use of selenium or vitamin E singularly or in combination has ameliorative effect on cardiac, renal and hepatic function markers in alloxan-induced diabetic rats. However, the combination of selenium and vitamin E had no synergistic advantage over the use of selenium or vitamin E alone. 

scholarly journals Microecological preparation combined with an modified low-carbon diet improves glucolipid metabolism and cardiovascular complication in obese patients

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jianguo Liu ◽  
Liehui Xiao ◽  
Hezhongrong Nie ◽  
Yong Pan ◽  
Yan Liu ◽  
...  
Keyword(s):  
Intestinal Barrier ◽  
Intestinal Barrier Function ◽  
Control Group ◽  
Obese Patients ◽  
Carotid Atherosclerotic Plaque ◽  
Low Carbon ◽  
Balanced Diet ◽  
Group A ◽  
Group B ◽  
Control Group Group

Abstract Objective To investigate the impact of microecological preparation combined with modified low-carbon diet on the glucolipid metabolism and cardiovascular complication in obese patients. Methods From August 2017 to July 2020, 66 obese patients were recruited, and administrated with an modified low-carbon diet with (group A) or without (Group B) microecology preparation and a balanced diet in control group (group C) for 6 months. Meanwhile, 20 volunteers administrated with a balanced diet were recruited as the healthy control group (group D). Results After 6-month intervention, obese subjects in group A and B showed significant improvement of body and liver fat mass, reduction of serum lipid levels, intestinal barrier function markers, insulin resistance index (IRI), high blood pressure (HBP) and carotid intima thickness, as compared with subjects in group C. More importantly, subjects in group A had better improvement of vascular endothelial elasticity and intimal thickness than subjects in group B. However, these intervention had no effect on carotid atherosclerotic plaque. Conclusion Administration of microecological preparation combined with modified low-carbon diet had better improvement of intestinal barrier function, glucose and lipid metabolism, and cardiovascular complications than low-carbon diet in obese patients, but the effect of a simple low-carb diet on carotid atherosclerotic plaque need to be further addressed.

Does laryngopharyngeal reflux affect healing and recovery after tonsillectomy?

2007 ◽  
Vol 122 (6) ◽  
pp. 603-608 ◽  
Author(s):  
S Elwany ◽  
Y A Nour ◽  
E A Magdy
Keyword(s):  
Wound Healing ◽  
Laryngopharyngeal Reflux ◽  
Ph Monitoring ◽  
Control Group ◽  
Study Group ◽  
Pain Scores ◽  
Blinded Study ◽  
Group A ◽  
Group B ◽  
Control Group Group

AbstractIntroduction:Laryngopharyngeal reflux is increasingly being implicated in several otolaryngological disorders.Aims:To study a potential correlation between pre-operative laryngopharyngeal reflux and wound healing and recovery after tonsillectomy, based on subjective and objective findings.Materials and methods:A prospective, blinded study was undertaken, including 60 patients scheduled for tonsillectomy, divided into two equal groups: a study group (group A) with pre-operative laryngopharyngeal reflux documented using ambulatory 24-hour pH monitoring; and a control group (group B) without laryngopharyngeal reflux.Results:Group A had significantly higher pain scores on the seventh and 14th post-operative days (p = 0.022 and p = 0.000, respectively) and took a significantly longer time to return to normal eating (p = 0.013), compared with group B. Group A also showed significantly slower healing on the seventh and 14th post-operative days, as estimated by assessing the grade of post-operative slough formation (p = 0.016 and p = 0.029, respectively). A significant correlation between the number of pharyngeal reflux episodes and the degree of post-operative slough was also found.Conclusions:Laryngopharyngeal reflux can significantly decrease wound healing following tonsillectomy. Therefore, pre-operative recognition and management of this condition is desirable in order to eliminate its negative post-operative effect.

Silymarin and dimercaptosuccinic acid ameliorate lead-induced nephrotoxicity and genotoxicity in rats

2015 ◽  
Vol 35 (4) ◽  
pp. 398-403 ◽  
Author(s):  
Y Alcaraz-Contreras ◽  
RP Mendoza-Lozano ◽  
ER Martínez-Alcaraz ◽  
M Martínez-Alfaro ◽  
MA Gallegos-Corona ◽  
...  
Keyword(s):  
Lead Acetate ◽  
Chelating Agent ◽  
Blood Lead ◽  
Positive Control ◽  
Dimercaptosuccinic Acid ◽  
Control Group ◽  
Lead Levels ◽  
Group A ◽  
Group B ◽  
Group D

We studied the effect of silymarin and dimercaptosuccinic acid (DMSA), a chelating agent that was administered individually or in combination against lead (Pb) toxicity in rats. Wistar rats (200 ± 20) were randomly divided into five groups. Group A served as a control. Groups B–E were exposed to 2000 ppm of lead acetate in drinking water for 8 weeks. Group B served as a positive control. Group C received silymarin (100 mg kg−1 orally) for 8 weeks. Group D received DMSA (75 mg kg−1 orally) once daily for the last 5 days of treatment. Group E received DMSA and silymarin as groups C and D, respectively. The effect of Pb was evaluated and accordingly the treatments on blood lead levels (BLLs), renal system, and genotoxic effects were calculated using comet assay. The BLLs were significantly increased following the exposition of lead acetate. The administration of silymarin and DMSA provided reduction in BLLs. Silymarin and DMSA provided significant protection on the genotoxic effect of Pb. The toxic effect of Pb on kidneys was also studied. Our data suggest that silymarin and DMSA improve the renal histopathological lesions.

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).

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