scholarly journals Studying the history of synthesis and chemical structure of pyrethrins and synthetic pyrethroids, and mutagenicity of pyrethroids in the in vivo test for micronucleus induction (literature review and data of own studies)

2019 ◽  
Vol 84 (4) ◽  
pp. 42-58
Author(s):  
T.V. Tkachuk
Keyword(s):  
Body Weight ◽  
Literature Review ◽  
Chemical Structure ◽  
Experimental Studies ◽  
Synthetic Pyrethroids ◽  
In Vivo Test ◽  
Spontaneous Rate ◽  
Lambda Cyhalothrin ◽  
History Of

Introduction. Pyrethroids are analogues of natural pyrethrins, primarily isolated from plants of the genus Pymthrum, a family of Asteraceae known for their insecticidal properties. Objective. To study literature data on the history of synthesis, peculiarities of the chemical structure of pyrethrins, pyrethroids and their most common isomers, a combination of synthetic pyrethroids (SPs) with other chemical substances and insecticidal activity of SPs. Also, to perform an experimental assessment of SP mutagenicity. Materials and Мethods. For the literature review, data of international organizations, electronic databases and articles of the authors from different countries were used. To study SP mutagenicity, in vivo test for micronucleus (MN) induction in polychromatophilic erythrocytes (PCE) in mice bone marrow was used. Five active substances of SPs were studied: Cypermethrin 94.0 % at the doses of 46.0, 9.2,1.84 mg/kg body weight, 2 samples of Alpha-cypermethrin — 94.0 and 94.7 % at the doses of 20.0,2.0, 0.2 mg/kg, and 2 samples of Lambda-cyhalothrin — 95.2 and 97.1 % at the doses of 5.0,1.0, 0.2 mg/kg. Results and Discussion. The history of SP synthesis dates back about 70 years. Currently, a significant number of SPs were synthesised that differ in chemical structure, have different strength of insecticidal action, as well as may be used in combination with other compounds. Results of experimental studies suggest that Cypermethrin at the doses from 46.0 to 1.84 mg/kg body weight, 2 samples of Alpha-cypermethrin at the doses from 20.0 to 0.2 mg/kg body weight, as well as 2 samples of Lambda-cyhalothrin at the doses 1.0 and 0.2 mg/kg did not show significant increase in MNPCE level in PCs. However, both samples of Lambda-cyhalothrin at the doses: 5.0 mg/kg body weight induced statistically significant exceeding of the spontaneous rate of MNPCE (р < 0.05). Conclusion. Cypermethrin at the doses from 46.0 to 1.84 mg/kg body weight did not show a significant increase in MNPCE level. Samples of Alpha-cypermethrin at the doses from 20.0 to 0.2 mg/kg body weight did not show a significant increase in MN level. Samples of Lambda-cyhalothrin at the doses from 1.0 to 0.2 mg/kg did not show a significant increase in MN level. Samples of Lambda-cyhalothrin at the doses: 5.0 mg/kg body weight induced statistically significant exceeding of the spontaneous rate of MNPCE in comparison with the data of negative and historical controls.

Treatment of Oslerus osleri infestation in a dog: case report and literature review

1996 ◽  
Vol 32 (5) ◽  
pp. 435-438 ◽  
Author(s):  
DM Levitan ◽  
ME Matz ◽  
CS Findlen ◽  
RD Fister
Keyword(s):  
Body Weight ◽  
Case Report ◽  
Literature Review ◽  
Bronchoalveolar Lavage ◽  
Domestic Dogs ◽  
The World ◽  
History Of ◽  
Anti Inflammatory

Oslerus osleri (O. osleri), found throughout the world, reportedly is the most common respiratory nematode of wild and domestic dogs. Oslerus osleri infestation was diagnosed in a 1.5-year-old Scottish terrier presenting with a seven-week history of progressive cough. Diagnosis was based upon visualization of characteristic lesions on bronchoscopic evaluation and recovery of O. osleri larvae from tracheal and bronchoalveolar lavage samples on fecal analyses. Therapy was successful using anti-inflammatory doses of prednisone (0.5 mg/kg body weight, per os [PO] every other day) and thiabendazole (35 mg/kg body weight, PO q 12 hrs for five days; then 70 mg/kg body weight, PO q 12 hrs for 21 days).

scholarly journals Analysis on Soy-Yamgurt Potential as Antidiabetic in Streptozotocin-Nicotinamide Induced Rats

2018 ◽  
Vol 1 (1) ◽  
pp. 58-70
Author(s):  
Jessica Kwanariesta ◽  
Herla Rusmarilin ◽  
Ismed Suhaidi
Keyword(s):  
Body Weight ◽  
Lactic Acid ◽  
Blood Glucose ◽  
Fasting Blood Glucose ◽  
Average Weight ◽  
In Vivo Test ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Male Wistar Rats

This study was conducted to determine the potential of soy-yamgurt probiotics drink from the mixture of yam and soy extract with a ratio of 1: 1 in reducing the fasting blood glucose level of rats induced by streptozotocin-nicotinamide. Based on the analysis of chemical and phytochemical characteristics of soy-yamgurt, it was found that it has water content (80.97%), total solids (18.85%), protein content (11.95%), total lactic acid (1.03%), viscosity (20.56 Pa.s), lactic acid bacteria (10.22 log CFU/g), fiber content (0.98%), IC50 value (44.99 μg/ml), total phenol (711.90 μgGAE/g) and total flavonoids (1345.73 μgQE/g). The in vivo test used thirty 10-16 week old male Wistar rats with an average weight of 160-200 g divided into 5 groups: P1 (control), P2 (streptozotocin-nicotinamide), P3 (glibenclamide of 0.45 mg/kg body weight), P4 (3 ml of soy-yamgurt) and P5 (3.5 ml of soy-yamgurt).The results showed that the soy-yamgurt at the doses of 3 ml/160 g body weight and 3.5 ml/160 g body weight for 4 weeks in streptozotocin-nicotinamide-induced rats had significantly (P<0.01) lowered blood glucose levels and increased their weight.

scholarly journals Uji Aktivitas Antimalaria dari Spons Xestospongia sp. Asal Pulau Yapen secara In Vivo

2021 ◽  
Vol 24 (2) ◽  
pp. 177-184
Author(s):  
Murtihapsari Murtihapsari ◽  
Mathelda K. Roreng ◽  
Apriani Parubak ◽  
Alif Rahman
Keyword(s):  
Body Weight ◽  
Blood Cell ◽  
Secondary Metabolite ◽  
Marine Sponge ◽  
Red Blood Cell ◽  
Plasmodium Berghei ◽  
Antimalarial Activity ◽  
In Vivo Test ◽  
Steroid Alkaloid

It is generally admitted that marine sponge has rich of secondary metabolite as alkaloids, peptides and terpene. Those various compounds can be used for antimalarial drug.  This study aims to evaluate the in vivo antimalarial activity and to characterize the effectiveness of dose (ED50) of n-hexane extracted from Xestospongia sp. by using the Plasmodium berghei infected to mices. In the present study, we used Peter’s four day suppressive test, where the mice infected with Plasmodium berghei intra peritoneal with a suspension containing infected red blood cell origin from donor mice with parasitemia. Results of present study exhibited that the sponge Xestospongia sp. contains secondary metabolite including tritepenoid/steroid, alkaloid and saponin. Furthermore, an in vivo test revealed the affectivity dose (ED50) was 0.24 mg/kg of body weight. This finding is categorized a signifant decreasing level of parasitemia.   Secara umum, spons laut mempunyai kandungan metabolit sekunder seperti alkaloid, peptide dan terpena. Berbagai senyawa tersebut dapat dimanfaatkan sebagai obat antimalaria. Penelitian ini bertujuan untuk mengetahui kandungan kimia dan mengevaluasi aktivitas antimalarial secara in vivo untuk efektivitas dosis (ED50) ekstrak n-heksana dari spons Xestospongia sp. dengan menggunakan Plasmodium berghei yang diinfeksi ke tikus. Penelitian ini digunakan metode the 4-day Supresive Test, dimana mencit yang diinfeksi Plasmodium berghei secara intra peritoneal dengan suspensi yang mengandung sel darah merah terinfeksi yang berasal dari mencit donor. Hasil penelitian ini menunjukkan adanya kandungan metabolit sekunder diantaranya tritepenoid/steroid, alkaloid dan saponin. Selanjutnya, uji in vivo diperoleh nilai ED50 sebesar 0,24 mg/kg BB dikelompokan sangat baik, yang dapat menurunkan tingkat parasitemia secara signifikan. Dengan demikian, spons laut asal pulau Yapen dapat dijadikan sebagai sumber metabolit potensial untuk obat antimalaria.

Potential Uses of Vinegar as a Medicine and Related in vivo Mechanisms

2016 ◽  
Vol 86 (3-4) ◽  
pp. 127-151 ◽  
Author(s):  
Zeshan Ali ◽  
Zhenbin Wang ◽  
Rai Muhammad Amir ◽  
Shoaib Younas ◽  
Asif Wali ◽  
...  
Keyword(s):  
Chemical Structure ◽  
Review Paper ◽  
Heart Diseases ◽  
Folk Medicine ◽  
Active Role ◽  
Current Review ◽  
Different Types ◽  
Positive Effect

While the use of vinegar to fi ght against infections and other crucial conditions dates back to Hippocrates, recent research has found that vinegar consumption has a positive effect on biomarkers for diabetes, cancer, and heart diseases. Different types of vinegar have been used in the world during different time periods. Vinegar is produced by a fermentation process. Foods with a high content of carbohydrates are a good source of vinegar. Review of the results of different studies performed on vinegar components reveals that the daily use of these components has a healthy impact on the physiological and chemical structure of the human body. During the era of Hippocrates, people used vinegar as a medicine to treat wounds, which means that vinegar is one of the ancient foods used as folk medicine. The purpose of the current review paper is to provide a detailed summary of the outcome of previous studies emphasizing the role of vinegar in treatment of different diseases both in acute and chronic conditions, its in vivo mechanism and the active role of different bacteria.

Defibrotide Inhibits Platelet Activation by Cathepsin G Released From Stimulated Polymorphonuclear Leukocytes

1992 ◽  
Vol 67 (06) ◽  
pp. 660-664 ◽  
Author(s):  
Virgilio Evangelista ◽  
Paola Piccardoni ◽  
Giovanni de Gaetano ◽  
Chiara Cerletti
Keyword(s):  
Platelet Activation ◽  
Polymorphonuclear Leukocytes ◽  
Direct Interaction ◽  
Cathepsin G ◽  
In Vivo Test ◽  
Cell Functions ◽  
Test Models ◽  
Antithrombotic Effects

SummaryDefibrotide is a polydeoxyribonucleotide with antithrombotic effects in experimental animal models. Most of the actions of this drug have been observed in in vivo test models but no effects have been reported in in vitro systems. In this paper we demonstrate that defibrotide interferes with polymorphonuclear leukocyte-induced human platelet activation in vitro. This effect was not related to any direct interaction with polymorphonuclear leukocytes or platelets, but was due to the inhibition of cathepsin G, the main biochemical mediator of this cell-cell cooperation. Since cathepsin G not only induces platelet activation but also affects some endothelial cell functions, the anticathepsin G activity of defibrotide could help to explain the antithrombotic effect of this drug.

Pneumomediastinum: A Rare Presentation of Inflicted Injuries in Infants

2020 ◽  
Author(s):  
Adam Lee ◽  
Adam Bajinting ◽  
Abby Lunneen ◽  
Colleen M. Fitzpatrick ◽  
Gustavo A. Villalona
Keyword(s):  
Literature Review ◽  
Retrospective Review ◽  
Review Of The Literature ◽  
Rare Presentation ◽  
Spontaneous Pneumomediastinum ◽  
Nonaccidental Trauma ◽  
Comprehensive Literature Review ◽  
Healthy Infants ◽  
History Of

AbstractReports of incidental pneumomediastinum in infants secondary to inflicted trauma are limited. A retrospective review of infants with pneumomediastinum and history of inflicted trauma was performed. A comprehensive literature review was performed. Three infants presented with pneumomediastinum associated with inflicted trauma. Mean age was 4.6 weeks. All patients underwent diagnostic studies, as well as a standardized evaluation for nonaccidental trauma. All patients with pneumomediastinum were resolved at follow-up. Review of the literature identified other cases with similar presentations with related oropharyngeal injuries. Spontaneous pneumomediastinum in previously healthy infants may be associated with inflicted injuries. Clinicians should be aware of the possibility of an oropharyngeal perforation related to this presentation.

Overtraining of aerobic physical exercise reduce rats (Rattus norvegicus) memory

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Ni Made Ridla Parwata
Keyword(s):  
Body Weight ◽  
Physical Exercise ◽  
Rattus Norvegicus ◽  
Research Method ◽  
Male Rat ◽  
Control Group ◽  
Adult Male Rat ◽  
The Subject ◽  
Heavy Training

Overtraining syndrome is a decrease in physical capacity, emotions and immunity due to training that is too often without adequate periods of rest. Overtraining is often experienced by athletes who daily undergo heavy training with short break periods. This research aims to look at the effect of overtraining aerobic physical exercise on memory in mice. The research method was experimental in vivo with the subject of adult male rat (Rattus Norvegicus) Winstar strain aged 8-10 weeks, body weight 200-250 gr. Divided into three groups, namely the control group, aerobic group and overtraining group. The results of memory tests with water E Maze showed an increase in the duration of travel time and the number of animal errors made by the overtraining group (p = 0.003). This study concludes that overtraining aerobic physical exercise can reduce memory in rat hippocampus.

Neuropharmacological Profile and Chemical Analysis of Moroccan Ormenis mixta L.

2018 ◽  
Vol 16 (S1) ◽  
pp. S55-S64
Author(s):  
G. Hajjaj ◽  
A. Bahlouli ◽  
M. Tajani ◽  
K. Alaoui ◽  
Y. Cherrah ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Body Weight ◽  
Traditional Medicine ◽  
Behavioral Tests ◽  
Phytochemical Screening ◽  
Activity Profile ◽  
Acute Toxicity Study ◽  
Pharmacological Studies

Ormenis mixta L. is traditionally used for central nervous system (CNS)-related diseases. Its anti-stress properties have received attention in Moroccan traditional medicine and aromatherapy. However, no pharmacological studies have yet been undertaken on this plant in Morocco. The present study provides a preliminary phytochemical screening and psychopharmacological profile of the essential oil and aqueous extract from Ormenis mixta L. by using behavioral tests in vivo, at graded doses. The result of this research shows that Ormenis mixta L. was safe up to 2 g/kg b.w. (body weight) in the acute toxicity study, possesses potential psychostimulant effect, and has antianxiety and antidepressant-like activity. This activity profile of Ormenis mixta L. was similar to the typical psychostimulant, caffeine. The exact mechanism of action underlying this stimulant-like effect should be clarified with further detailed studies. These results explained the extensive use of Ormenis mixta L. as a traditional medicine in Morocco.

Biological NMR Spectroscopy

1997 ◽  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Nmr Spectroscopy ◽  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
State Of The Art ◽  
Critical Assessment ◽  
Resonance Spectroscopy ◽  
History Of ◽  
Structure Of Proteins

This book presents a critical assessment of progress on the use of nuclear magnetic resonance spectroscopy to determine the structure of proteins, including brief reviews of the history of the field along with coverage of current clinical and in vivo applications. The book, in honor of Oleg Jardetsky, one of the pioneers of the field, is edited by two of the most highly respected investigators using NMR, and features contributions by most of the leading workers in the field. It will be valued as a landmark publication that presents the state-of-the-art perspectives regarding one of today's most important technologies.

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