scholarly journals Alteration of the Fatty Acid Metabolism in the Rat Kidney Caused by the Injection of Serum from Patients with Collapsing Glomerulopathy

Biomedicines ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 388
Author(s):  
Elizabeth Soria-Castro ◽  
Verónica Guarner-Lans ◽  
María Elena Soto ◽  
María del Carmen Avila-Casado ◽  
Linaloe Manzano Pech ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Acid Metabolism ◽  
Rat Kidney ◽  
Group Iv ◽  
Sprague Dawley ◽  
Group Iii ◽  
Collapsing Glomerulopathy ◽  
Fa Composition ◽  
Group I ◽  
Sprague Dawley Rats

Patients with collapsing glomerulopathy (CG) have marked proteinuria that rapidly progresses to chronic renal failure. In this study, we investigated if the nephropathy produced in a rat model by the injection of serum from CG patients induced alterations in fatty acid (FA) metabolism. Twenty-four female Sprague-Dawley rats were divided into four groups of six rats each: Group I, control rats (C); Group II, rats that received injections of 1 mL of 0.9% NaCl saline solution (SS); Group III, rats injected with 25 mg/mL of serum from healthy subjects (HS); and Group IV, rats injected with 25 mg/mL of serum from CG patients. In all groups, the systolic blood pressure (SBP), proteinuria, creatinine clearance (CC), cholesterol and total FA composition in the kidney and serum were evaluated. The administration of serum from CG patients to rats induced glomerular collapse, proteinuria, reduced CC and elevated SBP (p ≤ 0.01) in comparison with the C, SS and HS rats. The FA composition of the serum of rats that received the CG serum showed an increase in palmitic acid (PA) and a decrease in arachidonic acid (AA) when compared to serum from HS (p ≤ 0.02). In rats receiving the CG serum, there was also a decrease in the AA in the kidney but there was an increase in the PA in the serum and kidney (p ≤ 0.01). These results suggest that the administration of serum from CG patients to rats induces alterations in FA metabolism including changes in PA and in AA, which are precursors for the biosynthesis of the prostaglandins that are involved in the elevation of SBP and in renal injury. These changes may contribute to collapsing glomerulopathy disease.

Hepatoprotective activity of Tamarindus indica Linn stem bark ethanolic extract against hepatic damage induced by co-administration of antitubercular drugs isoniazid and rifampicin in Sprague Dawley rats

2018 ◽  
Vol 30 (1) ◽  
pp. 131-137 ◽  
Author(s):  
Shaikh Zohra Meena ◽  
Md. Azizur Rahman ◽  
Paramdeep Bagga ◽  
Md. Mujahid
Keyword(s):  
Ethanolic Extract ◽  
Stem Bark ◽  
Hepatoprotective Activity ◽  
Group Iv ◽  
Hepatic Damage ◽  
Sprague Dawley ◽  
Group V ◽  
Group Iii ◽  
Group I ◽  
Sprague Dawley Rats

Abstract Background Development of drug-induced hepatic damage (DIHD) during chemotherapy is the most common reason for interruption in chemotherapy. This study evaluated the hepatoprotective activity of the ethanolic extract of Tamarindus indica stem bark (EETI) against the induced DIHD in Sprague Dawley rats. Methods The rats were divided into five groups (n=5). Group I, group III, group IV, and group V rats received 1 mL 1% carboxymethyl cellulose, EETI 100 mg/kg body weight (b.wt), EETI 200 mg/kg b.wt, and silymarin 100 mg/kg b.wt, respectively, orally once every day for 28 days. After 1 h–group II, group III, group IV, and group V rats were administered with isoniazid (INH) and rifampicin (RIF) 50 mg/kg b.wt each orally once every day for 28 days. Then, 24 h after the last dosing, blood was withdrawn from the rats and analyzed for liver specific enzymes and biochemical markers. They were examined for histopathology. Results Co-administration of INH and RIF in group II significantly increased alanine transaminase, aspartate transaminase, alkaline phosphatase, lactate dehydrogenase, serum bilirubin, and cholesterol levels while reduced the total protein and albumin levels compared to that of group I. EETI in group III and group IV rats significantly restored the liver specific enzymes and biochemical markers altered due to co-administration of INH and RIF to normal in a dose-dependent manner. EETI 200 mg/kg b.wt showed better protection to liver than EETI 100 mg/kg b.wt and was comparable to silymarin 100 mg/kg b.wt. It was well supported with histopathology of liver tissues. Conclusions EETI possesses hepatoprotective activity against DIHD in rats. It may have a substantial impact on developing clinical strategies to treat patients with hepatic damage.

Source of ethane in expirate of rats ventilated with 100% oxygen

1989 ◽  
Vol 66 (3) ◽  
pp. 1268-1272 ◽  
Author(s):  
M. P. Habib ◽  
M. A. Katz
Keyword(s):  
Group Iv ◽  
Sprague Dawley ◽  
Group V ◽  
Group Iii ◽  
Group I ◽  
Free Air ◽  
Sprague Dawley Rats ◽  
Ethane Production ◽  
Before And After ◽  
Group Ii

Ethane in alveolar expirate may have its source in organs other than the lung and be transported to the lung for elimination. We determined ethane production rates in rats (group I) ventilated with hydrocarbon-free air (HFA) before and after exsanguination. To determine whether the lung is the source of increased ethane production during exposure to 100% O2, we measured ethane in the expirate of nine exsanguinated, Sprague-Dawley rats (group II) mechanically ventilated with HFA and then with 100% O2. In all nine animals, ethane elimination rates on 100% O2 increased compared with HFA values. In five of the nine rats, HFA ventilation was reinstated after O2 (group III). In all five, ethane elimination fell with HFA ventilation compared with the value on 100%. Six rats with circulation intact were ventilated with HFA and then 100% O2 (group IV). Ethane production rate for group IV animals breathing HFA was not significantly different from the exsanguinated animals in group II while ventilated with HFA. The mean increase in ethane production for the group II animals was not significantly different from the group IV animals. Lung slices from four other rats (group V) were incubated in saline at 37 degrees C with FeCl2 (10 mg) added to enhance free radical formation. Paired lung samples from the same rat were incubated with either HFA or 100% O2. Headspace gas was analyzed chromatographically for ethane at 120 min. Mean ethane in the O2 samples was higher than for HFA. Rat lung tissue is the main source of increased ethane production during 100% O2 exposure.

Importance of the kidney in the correction of chloride-depletion alkalosis in the rat

1986 ◽  
Vol 250 (1) ◽  
pp. F54-F57
Author(s):  
D. M. Craig ◽  
J. H. Galla ◽  
D. N. Bonduris ◽  
R. G. Luke
Keyword(s):  
Group Iv ◽  
Bilateral Nephrectomy ◽  
Sprague Dawley ◽  
Group Iii ◽  
Relative Contribution ◽  
Chloride Depletion ◽  
Isotonic Fluid ◽  
Group I ◽  
Sprague Dawley Rats ◽  
Partial Correction

Correction of chloride-depletion alkalosis (CDA) may involve renal as well as extrarenal mechanisms. To determine the relative contribution of these mechanisms in a rat model of CDA produced by peritoneal dialysis (PD), we studied six groups of anesthetized Sprague-Dawley rats after PD. Groups II-IV and IIa were subjected to functional bilateral nephrectomy, and groups I and Ia were sham-operated. Groups I, Ia, II, and IIa were infused with isotonic fluid containing 70 mM Cl- and 40 mM HCO3-; the infusate in group III was 140 mM Cl- and in group IV, 70 mM neutral PO4 was substituted for Cl-. Groups I and Ia were infused at 0.5 ml . h-1 X 100 g body wt-1 and groups II, IIa, III, and IV at 0.25 ml . h-1 X 100 g-1. After 3 h of infusion, early partial correction with reciprocal changes in plasma Cl (+6.1 +/- 1.9 mmHg) and total CO2 (-6.0 +/- 0.8 meq/liter) occurred (P less than 0.01) only in group I. Hypokalemia (3.1 +/- 0.1 meq/liter) also occurred only in group I. The responses of groups Ia and IIa studied at 5 h were similar to those of groups I and II. These data suggest that the kidney, and not extrarenal mechanisms, is primarily responsible for the correction of CDA during infusion of chloride.

Pravastatin attenuates testicular damage induced by doxorubicin – a stereological and histopatological study

2018 ◽  
Vol 30 (1) ◽  
pp. 103-109 ◽  
Author(s):  
Bahram Eslami Farsani ◽  
Samaneh Karimi ◽  
Esrafil Mansouri
Keyword(s):  
Sperm Count ◽  
Saline Group ◽  
Group Iv ◽  
Seminiferous Tubules ◽  
Testicular Toxicity ◽  
Sprague Dawley ◽  
Group Iii ◽  
Group I ◽  
Sprague Dawley Rats ◽  
Tubule Diameter

Abstract Background The aim of this study is to investigate the effects of pravastatin (PS) against doxorubicin (DOX)-induced testicular toxicity. Methods A total of 24 healthy male Sprague-Dawley rats were equally divided into four groups. Group I received normal saline, Group II received PS (20 mg/kg b.w.) by gavage, Group III was treated with DOX alone (15 mg/kg b.w., i.p.) and Group IV received the combination of DOX and PS. Results After 8 weeks, the results displayed that DOX caused a decrease in testicular volume and index, epididymal sperm count, seminiferous tubule diameter and germinal epithelium. DOX also reduced the number of spermatogonia, spermatoctyes and Sertoli cells as well as increased the lumen diameter of seminiferous tubules (p<0.05) and the incidence of histopathological changes of the testis. Moreover, elevated malondialdehyde (MDA) levels and declined glutathione peroxidase (GPx) and superoxide dismutase (SOD) activities were observed (p<0.05). On the contrary, PS treatment significantly ameliorated nearly all of these abnormalities (p<0.05). Conclusions PS protects against DOX-induced testicular toxicity in rats, which is likely via the inhibition of oxidative stress and the increase of antioxidant enzyme activity.

scholarly journals Pengaruh Pemberian Kurma Muda (Phoenix dactylifera) Terhadap Kadar FSH dan Reseptor FSH Ovarium Tikus Putih (Rattus norvegicus)

2019 ◽  
Vol 7 (1) ◽  
pp. 117-121
Author(s):  
Herlambang Herlambang ◽  
Ave Olivia Rahman ◽  
Erny Kusdiyah
Keyword(s):  
Ovarian Tissue ◽  
Scientific Evidence ◽  
Phoenix Dactylifera ◽  
Group Iv ◽  
Sprague Dawley ◽  
Female Reproduction ◽  
Group I ◽  
Sprague Dawley Rats ◽  
Vaginal Swabs ◽  
The Mean

ABSTRACT Background: Infertility may give an impact on psychosocial. In Indonesia, the habit of consuming young dates is often done by couples to increase fertility. FSH is one of the factors that play a role in folliculogenesis. The lack of scientific evidence of young dates consumption effects on female reproduction has led to this study. This study aims to determine the levels of FSH hormone and the picture of ovarian tissue in mice after administration of young dates. Method: This study used an experimental design using 28 female Sprague-Dawley rats which were randomly divided into 4 groups. Group I to III was given young dates in successive doses: 17 mg, 34 mg, 68 mg per 200 grams of body weight and group IV was given distilled water. The treatment was carried out for 28 days. FSH levels were examined before treatment during the proestrus phase which was known from microscopic examination of rat vaginal swabs. The treatment begins during the proestrus phase. Result: The mean baseline and post-treatment FSH levels were 0.08 and 0.09 respectively Conclusion: There is no significant increase of FSH levels and FSH receptors as the effect of giving young dates (Phoenix Dactylifera) to female Sprague-Dawley rats Keywords: Dates, FSH, FSH receptors, Rats   ABSTRAK Latar Belakang: Infertilitas dapat memberikan dampak psikososial. Di Indonesia, kebiasaan mengkonsumsi kurma muda sering dilakukan oleh pasangan untuk meningkatkan kesuburan. Hormon FSH merupakan salah satu faktor yang berperan dalam folikelgenesis.  Belum adanya bukti ilmiah efek konsumsi buah kurma muda terhadap reproduksi wanita mendorong dilakukannya studi ini. Studi ini bertujuan mengetahui kadar hormon FSH dan gambaran jaringan ovarium pada tikus setelah pemberian kurma muda. Metode: Penelitian ini menggunakan desain ekperimental menggunakan tikus Sprague dawney betina sebanyak 28 ekor yang dibagi secara acak menjadi 4 kelompok. Kelompok I-III diberikan kurma muda dosis berturut -turut 17 mg, 34 mg, 68 mg per 200 gram BB dan kelompok IV diberikan aquadest. Perlakuan dilakukan selama 28 hari. Kadar hormon FSH diperiksa sebelum perlakuan saat fase proestrus yang diketahui dari pemeriksaan mikroskopis swab vagina tikus. Perlakuan dimulai saat fase proestrus. Hasil: Rerata kadar FSH baseline dan paska perlakuan adalah 0,08 dan 0,09 Kesimpulan: Tidak terdapat peningkatan yang signifikan kadar FSH dan reseptor FSH terhadap efek pemberian buah kurma muda (Phoenix Dactylifera) pada uterus tikus Spague Dawney Kata kunci : kurma, FSH, Reseptor FSH, tikus

scholarly journals Ultrastructural evaluation of urine alkalinization versus hydration on colistin-induced nephrotoxicity

2019 ◽  
Vol 38 (12) ◽  
pp. 1366-1377
Author(s):  
B Korucu ◽  
I Unal ◽  
M Pekcan ◽  
AC Inkaya ◽  
H Yeter ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Drinking Water ◽  
Weak Acid ◽  
Group Iv ◽  
Ultrastructural Changes ◽  
Sprague Dawley ◽  
Group Iii ◽  
Group I ◽  
Urine Alkalinization ◽  
Group Ii

Objectives: Colistin is a vital antibiotic used in multidrug-resistant infections. Its most important side effect is nephrotoxicity. Colistin is a weak acid. This study aims to evaluate whether urine alkalinization is protective in the nephrotoxicity of colistin. Methods: Twenty-eight male Sprague-Dawley rats were divided into groups. Group I ( n = 4) was injected with intramuscular distilled water twice a day for 7 days. Group II ( n = 8) was injected with 750,000 IU/kg/day colistin for 7 days. Group III ( n = 8) was injected with the same dose of colistin after their urinary pH was ≥7 through the addition of bicarbonate in their drinking water. Group IV ( n = 8) was injected with the same dose of colistin after their urine density fell below 1010 through the addition of NaCl molds in their food and 12.6 mg/L NaCl in their drinking water. Results: According to tubular degenerations (scored 0–5), group I scored 0, group II scored 4.25, group III scored 2, and group IV scored 1.5. In groups III and IV, protection was achieved ( p = 0.001). The bicarbonate group was not superior to the NaCl group ( p = 0.789). In transmission electron microscopy, group III had more microvilli integrity and autophagic vacuoles compared to group IV. Group IV had mitochondrial swelling and cristae lysis. A lower urine density was related to lower tubular scores ( p = 0.001). Conclusions: Colistin was highly nephrotoxic without protection. Light microscopy findings revealed that urinary alkalinization and NaCl hydration were similarly protective. Urine alkalinization further prevents ultrastructural changes as revealed by electron microscopy.

Parathyroid hormone contributes to volume expansion-induced inhibition of proximal reabsorption

1985 ◽  
Vol 248 (1) ◽  
pp. F100-F103 ◽  
Author(s):  
O. Mercier ◽  
M. Bichara ◽  
M. Paillard ◽  
J. P. Gardin ◽  
F. Leviel
Keyword(s):  
Parathyroid Hormone ◽  
Volume Expansion ◽  
Sprague Dawley ◽  
Nacl Transport ◽  
Free Expansion ◽  
Group Iii ◽  
Group I ◽  
Sprague Dawley Rats ◽  
Stimulation Of ◽  
Intact Rats

Volume expansion inhibits the proximal reabsorption of water, bicarbonate, and chloride. The present work tested a hypothetical role of parathyroid hormone (PTH) in the expansion effect. We studied 19 Sprague-Dawley rats during a plasma-replete euvolemic state and following 10% body wt colloid-free expansion. In group I, six intact rats, volume expansion decreased plasma ionized calcium concentration ([Ca2+]P) from 2.28 +/- 0.06 to 2.11 +/- 0.04 meq/liter and increased nephrogenous cAMP (NcAMP) from 29 +/- 5 to 66 +/- 10 pmol X min-1 X g kidney wt-1. In group II, six acutely thyroparathyroidectomized (TPTX) rats, [Ca2+]P also fell from 2.18 +/- 0.08 to 1.80 +/- 0.08 meq/liter but NcAMP did not rise significantly (9 +/- 3 vs. 17 +/- 5 pmol X min-1 X g kidney wt-1). These data strongly suggest that stimulation of PTH activity occurred during expansion in intact animals. In group III, seven TPTX rats, volume expansion inhibited proximal reabsorption of total CO2 by 11%, of chloride by 24%, and of water by 19%. Volume expansion-induced reduction in bicarbonate, chloride, and water reabsorption was smaller in TPTX than in intact rats previously studied. We conclude that volume expansion inhibits proximal reabsorption in part by decreasing the active transcellular NaHCO3 and NaCl transport secondary to stimulation of PTH activity.

scholarly journals Psidium guajava leaves decrease arthritic symptoms in adjuvant-induced arthritic rats

2016 ◽  
Vol 34 (3) ◽  
pp. 197
Author(s):  
Hanif Nasiatul Baroroh ◽  
Esti Dyah Utami ◽  
Anisyah Achmad
Keyword(s):  
Knee Joint ◽  
Histopathological Examination ◽  
Chronic Phase ◽  
Ethanol Extract ◽  
Psidium Guajava ◽  
Control Group ◽  
Sprague Dawley ◽  
Group Iii ◽  
Group I ◽  
Sprague Dawley Rats

BACKGROUND <br />Guava is an herbal with proven antioxidant and anti-inflammatory properties. The aim of this study was to investigate the anti-arthritic activity of the ethanol extract of Psidium gujava leaves (EEPG) against complete Freund’s adjuvant (CFA) induced arthritis in rats. <br /><br />METHODS<br />An experimental study was conducted on 40 male Wistar Sprague Dawley rats, which were divided into 5 groups. Each group was induced with 0.2 mL CFA (1 mg/mL) on day 1 and 0.1 CFA mL booster injection on day 5. Group I served as an arthritic control, group II received dexamethasone (6.75 mg.kg-1 orally), group III, IV and V received EEPG at oral doses of 250, 500, and 750 mg/kg BW, respectively, on days 14 to 28. Anti-arthritic activity was observed from the arthritis score, the paw circumference was measured on days 0, 1, 4, 8, 12, 16, 20, 24, and 28, the mobility score was determined on days 12 and 28, and the histolopathology of the knee joint was examined on day 29. <br /><br />RESULTS<br />Ethanol extract of Psidium guajava leaves significantly suppressed the swelling of the paws in chronic phase based on increasing of edema (%), while starting on day 20. EEPG at 250 mg/kg was most effective in significantly reducing arthritis scores (p&lt;0.05). Histopathological examination showed repair of the knee joint synovial membrane and cartilage.<br /> <br />CONCLUSIONS<br />Psidium guajava leaf extract is effective in decreasing the inflammatory response and arthritic symptoms in rats with adjuvant-induced arthritis. Psidium guajava leaves can be developed into an alternative anti-arthritis treatment.

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