Protective Effect of Thyroxine on Minocycline Induced Thyroid Gland Damage

Author(s):  
Tahira Assad

Background: Thyroxine has shown beneficial effects on intelligence, learning, and memory process in patients of congenital hypothyroidism. Minocycline has been used in clinical practice for various indications and reported to have anti-thyroid effects. This study was specifically designed to observe the role of thyroxine on minocycline induced damage to thyroid gland. Methods: This experimental study was undertaken at Anatomy department of BMSI, JPMC, Karachi, for eight weeks, from October to November 2019. Thirty adult (10-12 months) male guinea pigs, weighing from 450-650 gm were obtained and divided into 3 groups. Group A served as control, group B was given Minocycline 0.02mg/gram/day once daily and group C was administered Minocycline in similar amount as group B along with thyroxine 0.5µg/gram/day for the same duration. Dosing was continued for 8 weeks, at the completion of which all the animals were sacrificed. Thyroid gland was processed and tissue sections were stained with Haematoxylin and Eosin for morphology. Results: The absolute weight of thyroid gland was significantly increased (p<0.001) in minocycline treated group B animals compared to the control animals, whereas substantial decrease (p<0.01) in absolute weight of thyroid gland was witnessed in group C in comparison to group B animals. The follicular cells showed hypertrophy and shrinkage of colloid in the thyroid follicles. These changes were prevented when animals were co-administered with thyroxine and minocycline in Group C. Conclusion: Concomitant administration of thyroxine with the antimicrobial drug minocycline showed protective effects of thyroxine on Minocycline induced damage to thyroid gland of animals.

Author(s):  
Akinleye Stephen Akinrinde ◽  
Halimot Olawalarami Hameed

Abstract Objectives This study examined the possible protective roles of exogenous glycine (Gly) and L-Arginine (l-Arg) against Diclofenac (DIC)-induced gastro-duodenal damage in rats. Methods Rats were divided into Group A (control), Group B (DIC group) and Groups C–F which were pre-treated for five days with Gly1 (250 mg/kg), Gly2 (500 mg/kg), l-Arg1 (200 mg/kg) and l-Arg2 (400 mg/kg), respectively, before co-treatment with DIC for another three days. Hematological, biochemical and histopathological analyses were then carried out. Results DIC produced significant (p<0.05) reduction in PCV (13.82%), Hb (46.58%), RBC (30.53%), serum total protein (32.72%), albumin (28.44%) and globulin (38.01%) along with significant (p<0.05) elevation of serum MPO activity (83.30%), when compared with control. In addition, DIC increased gastric H2O2 and MDA levels by 33.93 and 48.59%, respectively, while the duodenal levels of the same parameters increased by 19.43 and 85.56%, respectively. Moreover, SOD, GPx and GST activities in the DIC group were significantly (p<0.05) reduced in the stomach (21.12, 24.35 and 51.28%, respectively) and duodenum (30.59, 16.35 and 37.90%, respectively), compared to control. Treatment with Gly and l-Arg resulted in significant amelioration of the DIC-induced alterations although l-Arg produced better amelioration of RBC (29.78%), total protein (10.12%), albumin (9.93%) and MPO (65.01%), compared to the DIC group. The protective effects of both amino acids against oxidative stress parameters and histological lesions were largely similar. Conclusions The data from this study suggest that Gly or l-Arg prevented DIC-induced gastro-duodenal toxicity and might, therefore be useful in improving the therapeutic index of DIC.


2021 ◽  
Vol 15 (12) ◽  
pp. 3292-3293
Author(s):  
Tazeen Kohari ◽  
Zaffar Iqbal Malik ◽  
Aftab Ahmad ◽  
Rana M. Asad Khan

Background: The human thyroid gland is located in the front of neck. It consists of two lobes. The two lobes are joined with each other by isthmus. The mood stabilizer Lithium Caronate has deleterious effects on the thyroid gland. Aim: To observe and report the data of the harmful effect of Lithium on the weight changes of thyroid gland. Methods: Sixteen rats were selected for this experimental study. The rodents were divided into two groups. Group A comprised of eight animals which were given laboratory diet, Group B contained eight albinos who were given Tablet Lithium Carbonate in powder form at a dose of 60 mg/day for four weeks. After completion of the study time animals were sacrificed and thyroid gland weight were recorded and compared in both groups. Results: The results in both groups were recorded and compared .It was reported that Group B animals had a highly significantly decreased thyroid weight after four weeks Lithium ingestion than Group A control group. Conclusion: The results of our study concluded that Lithium Carbonate damages thyroid glandular tissue and causes its weight to decline. Key words: Thyroid gland, Isthmus, deteriorating


2020 ◽  
Vol 14 (03) ◽  
pp. 124-127
Author(s):  
Somia Iqbal ◽  
Noman Sadiq ◽  
Saad Siddiqui ◽  
Hira Iqbal

Background: Obesity is a prevailing metabolic disorder that affects the functioning of the male reproductive system. Excessive adipose tissue enhances reactive oxygen species generation and is linked with male infertility. Spinach has demonstrated antioxidant effects. The present study was conducted to determine the antioxidant effects of spinach on sperm parameters in obese Sprague Dawley rats. Subjects and methods: This randomized control study was conducted at the animal house of the National Institute of Health Islamabad, Islamic International Medical College, Cosmesurge International Hospital, Rawalpindi, and Apollo lab, Islamabad, Pakistan from April 2016 to March 2017. Forty male Sprague Dawley rats having an age of 8 weeks and weight 160-200g were tagged from number 1 to 40. Every third rat was randomly allocated to control Group A (n=13) and remaining into the Experimental group (n=27). Rats of control Group A was given a standard diet while a high-fat diet was given to Experimental group rats to induce obesity for the duration of six weeks. Weight (g) was measured weekly and obesity was confirmed when rats attain more than 20% weight when compared with that of rats of control Group A. Then, after obesity induction, the experimental group was alienated into the obesity control group (Group B) and spinach treated group (Group C). For sample, rats of Group A and Group B were sacrificed, and the cauda epididymis of each rat was placed in a Petri dish containing normal saline and cut into pieces to allow the release of sperm and then sperm parameters (sperms concentration, motility, and morphology) were recorded under the microscope. Then, spinach (5% hot water extract) along with the persistence of fat diet was administered to Group C for 4 weeks and finally, sperm parameters were measured in this group. Results: Sperm concentration/ml, motility (%), and normal morphology (%) of Group B rats were significantly decreased as compared to Group A rats. However, sperm concentration/ml, motility (%), and normal morphology (%) of Group C (spinach treated group) rats was significantly increased (p<0.001) as compared to Group B (obesity control group) rats after administering spinach. Conclusion: The addition of Spinach in a normal diet regimen restores normal sperm morphology, improves sperm motility and concentration.


1969 ◽  
Vol 11 (3) ◽  
pp. 162-168
Author(s):  
Yasmeen Mahar ◽  
Alisha Qamar ◽  
lnayatullah ◽  
Sarwath Fatimee ◽  
Mohammad Fawad Saeeduddin ◽  
...  

Background:Use of dietary supplements to treat illnesses has increasedtremendously in recentyears.Adrenal gland is one ofthemost commonly damaged endocrine gland in the body, not only by chemical or radiation injuries, but also as a result of differenttypes of stress.Search is underway for use ofnatural foods for protection of adrenal gland from different types ofinsults.Objective: To determine the protective effects of L-arginine on streptozotocin (STZ)-induced adrenal gland injury in albino rats,andto compare its efficacy to insulin.Material and Methods: This prospective experimental study was done at BMSI, JPMC, Karachi. Forty male, healthy albino rats,90-120 days old were segregated into 4 groups. Group A was marked as control, group B was administered STZ, group C and Dwere treated with STZ along with insulin and L-arginine respectively. At the end of study period, i.e., 6 weeks, animals weresacrificed under ether anaesthesia. Tissue from the left adrenal gland was processed for frozen sectioning to observe fat content ofthe adrenal cortex by applying OilRed O stain.Results: Oil Red-0 stained frozen sections revealed closely aggregated fat globules in adrenal cortex of STZ treated group B ascompared to control. Moderate betterment was seen in group C and in group D Oil Red O stained frozen sections as compared toSTZ treated group B.Conclusion: The results ofthe study demonstrated adrenal cortex injury by STZ which ameliorated with concomitant use of insulinandL-arginine. The protection was more pronounced with L-arginine as comparedto insulin.Keywords:STZ, adrenal gland,insulin,L-arginine


2019 ◽  
Vol 09 (04) ◽  
pp. 257-260
Author(s):  
Shahid Ali ◽  
Nuzhat Sultana ◽  
Muslim Abbas ◽  
Zareen Naz ◽  
Muhammad Akbar Hassan ◽  
...  

Objective: To determine effect of citrullus lanatus juice on hemoglobin and Serum Glutamic Pyruvic Transaminase (SGPT) level. Study design and setting: It was an experimental study conducted on healthy rabbits for sixty days in the research department of pharmacy University of Karachi. Methodology: Current study was planned to evaluate effect of Citrullus lanatus juice on red blood cells, hemoglobin and liver enzyme. 60 days study was performed at 2 different doses i.e 3and 6ml/kg on rabbits. These rabbits were from either gender and were divided into 3 groups their weight ranges from 1200 to 1800 grams. Group A is control group (Normal saline 6ml/kg), Group B is treated group (3 ml/kg), Group C is treated group (6ml/kg). After taking mean of all values they are compared with control group. Significance of mean can be estimated by Tukes Post Hoc Test. P<0.05 estimated as significant. Results: It was found that count of red blood cells rises significantly along with rise in hemoglobin level. As far as liver enzyme serum glutamate pyruvate transaminase (SGPT) was concerned its concentration decreases slightly. Conclusion: Citrullus lanatus juice contain ingredients which are important for RBC hemoglobin and synthesis .It also contains important antioxidants that have organoprotective role due to which SGPT level decreases even in healthy animals as compared to control groups


2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Yuqing Zhou ◽  
Qian Dong ◽  
Rong Zhang ◽  
Shunfeng Zhou ◽  
Linqiang Li ◽  
...  

Aims.To investigate cerebral hemodynamics in cirrhotic patients with HE and to observe effects of treatment in cerebral hemodynamics and correlations among ammonia, cerebral hemodynamics, and cognitive function.Methods. There were four groups: healthy controls (group 1), cirrhosis without HE (group 2), cirrhosis with MHE (group 3), and cirrhosis with OHE (group 4). Ammonia and cerebral hemodynamics (by TCD) were assessed. Patients in group 3 were subsequently randomized to two subgroups: the control (group A) and the treated (group B, treated with lactulose for two months), and they were retested for ammonia and TCD after treatment. Results. Ammonia,Vm,Vd, PI, and RI were statistically different before treatment, and ammonia, PI, and RI levels paralleled the severity of HE (P<0.05). In group B,Vdincreased and ammonia, PI, and RI declined following treatment (P<0.05), while there were no differences in group A (P>0.05). Correlations were found between ammonia andVd, PI, RI, NCT-A, and DST and also found betweenVd, PI, RI, and NCT-A and DST (P<0.05).Conclusions. This study revealed that cerebral hemodynamics were related to the severity of HE and cerebral autoregulation was impaired. There were tight correlations among ammonia, cerebral hemodynamics, and cognitive function, and, following treatment, cerebral hemodynamics improved.


2016 ◽  
Vol 2 (3) ◽  
pp. 402-408
Author(s):  
Ambiara ◽  
Fahima Binthe Aziz ◽  
Md Mahmudul Hasan ◽  
Md Shajedur Rahman ◽  
Misrat Masuma Parvez ◽  
...  

The present study was undertaken to investigate the antidiabetic effect of the Bitter melon and Garlic on Alloxan induced diabetes in experimental rabbits. At 2 to 3 months of age, rabbits were assigned into five groups (A, B, C, D and E) and each group was remained 4 rabbits. Group A was kept for control, Group B was treated with Alloxanintramuscullarly at a dose of 75mg /kg body weight, Group C was treated with bitter melon 250gm/kg body weight orally, Group D was treated with garlic 750mg/kg body weight orally, Group E treated with combined at previous dose. After acclimatization, diabetes was induced in four groups of rabbits (B, C, D and E) by administering Alloxan injection in a dose of 75mg/kg body weight (b.wt.) intramuscularlly. There was significant decreased in blood glucose level in all treated group C, D, E compared to the B group and lowest glucose was recorded in E group when treated with combined medicinal herbs and body weight was increased in all treated group C, D, E compared to the B group and highest was recorded in Dgroup while treated with those.% of PCV level and Hb gm/dl concentration was the highest in group E which was treated with both garlic and bitter melon compare to the A group. ESR was highest in group B treated with Alloxan and lowest in group E. The present study reveals that combined treatment increases body weight and decreases glucose level without affecting health of rabbits.Asian J. Med. Biol. Res. September 2016, 2(3): 402-408


Author(s):  
Saba Saleem

Introduction: Cyclophosphamide is one of the alkylating chemotherapeutic drug used in cancer patients that has antifertility effects on female gonads. Ocimum basilicum is a natural herb rich in polyphenols and is known to improve fertility. Aims & Objectives: The study was designed to evaluate the role of natural herb, Ocimum basilicum extract, as a preventive agent against ovarian follicular toxicity induced by cyclophosphamide. Place and duration of study: This experimental study was performed in the Department of Anatomy, Shaikh Zayed Postgraduate Medical Institute, Lahore. The duration of study was 8 months. Material & Methods: 45 female albino rats were divided equally in control group A, experimental group B and group C each contained 15 rats. Group A rats received single dose of 150 mg/kg normal saline intraperitoneally on 8th day of experiment, while group B was given single intraperitoneal dose of 150 mg/kg cyclophosphamide at day 8 of experiment. Group C rats were pretreated with methanolic basil (Ocimum basilicum) seeds extract for 7 days followed by single intraperitoneal dose of 150 mg/kg cyclophosphamide at day 8 of experiment. All the rats were dissected 48 hours after the last dose. Results: Graafian follicles were atrophied showing atretic granulosa cells in group B when compared with control group A with p value <0.001. However, significant improvement in status of Graafian follicles was observed in group C, when compared with group B with p value <0.025. Conclusion: This study depicts that basil seeds extract can prevent the cellular toxicity in Graafian follicles caused by cyclophosphamide treatment. So the use of basil seeds during chemotherapy can significantly limit its toxic effects on Graafian follicles.


2011 ◽  
Vol 3 (3) ◽  
pp. 143-150
Author(s):  
Hatice Işık ◽  
Ozlem Moraloglu ◽  
Sevtap Kilic ◽  
Ali Seven ◽  
Muzaffer Caydere ◽  
...  

Aim Angiogenesis plays an important role in the pathogenesis of endometriosis. Thus, the inhibition of angiogenesis may prevent endometriosis. Bevacizumab is a recombinant humanized monoclonal antibody against VEGF. The aim of this study is to investigate the efficacy of anti-VEGF therapy on the prophylaxis and treatment of endometriotic foci in a rat model. Methods This experimental study is prospective, randomized, and placebo-controlled. Thirty-six Wistar-Albino female rats were divided into 3 groups. Experimental endometriosis was induced by the implantation of autologous endometrial tissue. The bevacizumab administration route was intraperitoneal. Group A was the prophylaxis group; Group B was the treatment group, and Group C was the control group. The volumes of the implants as well as their VEGF and Ki-67 immunohistochemical staining are main outcome measures. Results The volumes of the lesions were smaller in Group A than Group C [P<.05]. The volumes of endometriotic foci in Group B were smaller than in Group C [P<.05]. Bevacizumab caused regression and atrophy of the endometriotic lesions. After the treatment the histopathologic and immunohistochemical scores in Group B were less than before treatment and less than the scores in Group C. Conclusions Bevacizumab treatment had a regressive effect on the endometriotic implants. As an anti-VEGF agent, bevacizumab has beneficial effects on the prophylaxis and treatment of endometriosis.


2018 ◽  
Vol 43 (1) ◽  
pp. 77-83 ◽  
Author(s):  
Anouar Ben Saad ◽  
Ilhem Rjeibi ◽  
Hichem Alimi ◽  
Sana Ncib ◽  
Talel Bouhamda ◽  
...  

The aim of this study was to investigate the protective effect of Mentha spicata supplementation against nicotine-induced oxidative damage in the liver and erythrocytes of Wistar rats. Bioactive substances were determined by liquid chromatography – electrospray ionization – tandem mass spectrometry analysis. Animals were divided into 4 groups of 6 rats each: a normal control group, a nicotine-treated group (1 mg/kg), a group receiving M. spicata extract (100 mg/kg), and a group receiving both M. spicata extract (100 mg/kg) and nicotine (1 mg/kg). Many phenolic acids were identified in the M. spicata aqueous extract. After 2 months of treatment, nicotine induced an increase in the level of white blood cells and a marked decrease in erythrocytes, hemoglobin, and haematocrit. Aspartate transaminase, alanine transaminase, alkaline phosphatase, and lactate dehydrogenase activities were also found to be higher in nicotine-treated group than those of the control group. Furthermore, nicotine-treated rats exhibited oxidative stress, as evidenced by a decrease in antioxidant enzymes activities and an increase in lipid peroxidation level in liver and erythrocytes. Interestingly, the oral administration of M. spicata extract by nicotine-treated rats alleviated such disturbances. M. spicata contained bioactive compounds that possess important antioxidant potential and protected liver and erythrocytes against nicotine-induced damage.


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