ABSTRACT
In the present study, molecular docking studies of some selected natural products were carried out to identify the potential inhibitors and subsequently to suggest their mechanism of action in relation to P38? mitogen-activated protein kinases (P38? MAPK) enzyme. Psoriasis is an inflammatory disorder characterized by skin hyper-proliferation, differentiation in keratin expression, and increased production of pro-inflammatory cytokines. Increased expression of phosphorylated P38? MAPK in the cytoplasm and nucleus is observed in psoriatic lesions. Twelve natural antipsoriatic agents were included in the study and their molecular docking studies were carried out using AutoDock 4.2 simulator using a Lamarckian genetic algorithm. The crystal structure of P38? MAPK was retrieved from the protein data bank and three-dimensional chemical structures of natural ligands were prepared using ChemSketch 2015. Results indicated that all the natural ligands were fitted into the active site. Hypericin and Catechin (?9.00 and ?8.05 kcal/mol, respectively) have shown good binding efficacy among other ligands. However, only Epicatechin interacted with residues in the enzyme required for enzyme inhibition. The study concludes that the Epicatechin effectively inhibited the enzyme and proved itself to be a type-I1/2 inhibitor of the enzyme among other natural ligands and responsible for the treatment of psoriasis preclinically through this mechanism of action.
ABSTRACT
In the present study, molecular docking studies of some selected natural products were carried out to identify the potential inhibitors and subsequently to suggest their mechanism of action in relation to P38? mitogen-activated protein kinases (P38? MAPK) enzyme. Psoriasis is an inflammatory disorder characterized by skin hyper-proliferation, differentiation in keratin expression, and increased production of pro-inflammatory cytokines. Increased expression of phosphorylated P38? MAPK in the cytoplasm and nucleus is observed in psoriatic lesions. Twelve natural antipsoriatic agents were included in the study and their molecular docking studies were carried out using AutoDock 4.2 simulator using a Lamarckian genetic algorithm. The crystal structure of P38? MAPK was retrieved from the protein data bank and three-dimensional chemical structures of natural ligands were prepared using ChemSketch 2015. Results indicated that all the natural ligands were fitted into the active site. Hypericin and Catechin (?9.00 and ?8.05 kcal/mol, respectively) have shown good binding efficacy among other ligands. However, only Epicatechin interacted with residues in the enzyme required for enzyme inhibition. The study concludes that the Epicatechin effectively inhibited the enzyme and proved itself to be a type-I1/2 inhibitor of the enzyme among other natural ligands and responsible for the treatment of psoriasis preclinically through this mechanism of action.
ABSTRACT
Several 6-aryl-4-substituted benzylidene/furfurylidene pyridazin(2H)-3-one derivatives (4a-f) were synthesized and evaluated as analgesic and anti-inflammatory agents in mice and rats, respectively. All compounds were tested by using Eddy's hot plate and the carrageenan-induced hind paw oedema method for the evaluation of analgesic and anti-inflammatory activities, respectively. Results showed that compounds 4f, 4b, 4d, and 4e exhibited higher analgesic and anti-inflammatory activities than other remaining compounds. All title compounds (4a-f) were characterized by IR, NMR and Mass spectroscopy.
Diversos derivados benzilideno/furfurilideno piridazin(2H)-3-ona 6-aril-4-substituídos (4a-f) foram sintetizados e avaliados como analgésicos e anti-inflamatórios em camundongos e ratos, respectivamente. Todos os compostos foram testados utilizando-se o método de placa quente de Eddy e o de edema de pata induzido por carragenana para a avaliação das atividades analgésica e anti-inflamatória, respectivamente. Os resultados mostraram que os compostos 4f, 4b, 4d e 4e exibiram atividade analgésica e anti-inflamatória mais alta do que os compostos restantes. Todos os compostos (4a-f) foram caracterizados por IV, RMN e espectrometria de massas.
Subject(s)
Rats , Pyridazines/classification , Analgesics/analysis , Anti-Inflammatory Agents/analysis , Analgesics/classificationABSTRACT
Electromyography is the recording and analysis of the electrical potentials of the muscle. Man has always been curious to know about his body and the surroundings. This led the mankind through many path breaking inventions that made human life easy. Much research has been done and documented in the field of bioelectricity which led to the present day electrodiagnostic procedures. .EMG as a diagnostic tool is a boon to the field of medicine. It plays a major and important role in different aspects of clinical medicine and dentistry. Hence an attempt has been made here to review the literature to acquaint the reader with history and invention of EMG and subsequent developments in that field. The literature on EMG in clinical medicine (part 1) and dentistry in general and orthodontics in particular (part 2) has been reviewed analytically.
ABSTRACT
CBVT is being used in Orthodontics due its ability to obtain 3- dimensional representation of craniofacial structures. It represents a highly precise image of the anatomic structures and clearly depicts the location of various anatomic structures. The Cone beam volumetric tomography(CBVT) can be considered as an Essential Diagnostic Aid in patients having skeletal asymmetry and severe skeletal malocclusions undergoing Orthognathic surgeries.
ABSTRACT
Correction of anterior cross bite by jumping over the bite is challenging to an orthodontist. This new technique describes a rapid bite raiser for intrusion of anterior teeth in crossbite.
ABSTRACT
Hydroalcoholic extract [70% ethanol extract] of tubers of Momordica tuberosa Cogn. [Cucurbitaceae] was subjected to preliminary phytochemical screening by qualitative tests. Nitric oxide scavenging activity was performed by Griess reagent method. And nephroprotective activity was assessed in gentamicin, cisplatin and paracetamol induced renal damage in wistar rats [150-200 g] by standard methods. The protective property of 70% ethanol extract was assessed by measuring the levels of body weight, blood urea, serum creatinine, tissue glutathione and lipid peroxidation in administered doses. The extract exhibited free radical scavenging activity in dose dependant manner. And 100 micro g/ml dose produced significantly higher scavenging activity than standard sodium metabisulphate at 25 micro g/ml. Also, it significantly reduced the renal damage caused by cisplatin, gentamicin and paracetamol at a dose of 40 mg/kg
Subject(s)
Animals, Laboratory , Male , Female , Phytotherapy , Plant Extracts , Nitric Oxide , Cucurbitaceae , Renal Insufficiency , Cisplatin/toxicity , Free Radical Scavengers , Blood Urea Nitrogen , Gentamicins/toxicity , Acetaminophen/toxicity , Rats , Lipid PeroxidationABSTRACT
Background: Consanguinity describes a relationship between two people who share an ancestor, or share blood. These consanguineous marriages are a major risk to the health of offsprings till the extent that they can cause various craniofacial abnormalities, orofacial pigmentations and other abnormal birth defects. We conducted a study on patients visiting a dental college in North India to accesses the possible deleterious effects of consanguineous marriages on oral and craniofacial structures. Methodology: The study group comprised of all the patients visiting outpatient department of Kotiwal Dental college and Research centre, Moradabad in North India from March 2009 to February 2010. 200 patients showed positive history of consanguinity. They were carefully evaluated and all the diagnostic information was noted. Results: 66 out of 200 patients had systemic disorders like cardiovascular, pulmonary and renal disturbances. 56 patients had orofacial manifestations like orofacial pigmentations, craniofacial syndromes and occlusal abnormalities with or without systemic disorders. Conclusion:The prevalence of consanguineous marriages is still high. Consanguineous marriages are a major risk to the health of offsprings till the extent that they can cause various craniofacial abnormalities, orofacial pigmentations and other abnormal birth defects. They increase the autosomal recessive conditions through the expression of recessive deleterious alleles, especially in the offspring of first degree cousins
ABSTRACT
Klippel-Trenaunay syndrome is a triad of congenital anomalies characterized by nevus flammeus, varicosities, and unilateral bony and soft tissue hypertrophy. Orofacial manifestations include facial asymmetry, jaw enlargement, and malocclusions as well as premature tooth eruption. Presented here is an illustrative report of Klippel Trenaunay syndrome in a 30 year old male patient showing all the characteristic findings.
ABSTRACT
The study was aimed at establishing pharmacognostical profile for the tubers of plant Momordica tuberosa Cogn., Cucurbitaceae. Morphoanatomy of tubers of this plant were studied in order to establish its complete profile to aid in its identification and avoid confusion in its taxanomic species. These were established using light microscopy, WHO recommended physicochemical and phytochemical procedures. The parameters presented here may be used to establish the authenticity of tubers of this plant as this part has been used traditionally in India and also to differentiate between closely related Momordica species.
Este trababalho teve como objetivo estabelecer um perfil farmacognóstico dos tuvérculos da planta Momordica tuberosa Cogn., Cucurbitaceae. A morfoanatomia dos tubérculos da espécie foi realizada para estabelecer um perfil completo que possa ajudar na identificação e evitar problemas na sua taxonomia. Os ensaios foram realizados usando microscópio ótico, procedimentos fisico-químicos e fitoquímicos estabelecidos pela OMS. Os parâmetros apresentados podem ser usados para apresetar a autenticidade dos tubérculos desta espécie, uma vez que esta parte da droga é utilizada tradicionalmente na Índia e, também, para diferenciá-la de outras espécies de Momordica.
ABSTRACT
Hydro alcoholic extract of tubers of M. tuberosa was subjected to preliminary phytochemical screening and evaluated for in vitro and in vivo antioxidant and hepatoprotective activity against CCl4 induced liver damage in rats. Pretreatment with 70% ethanolic extract of M. tuberosa reversed CCl4 induced elevation of levels of serum biomarkers to near normal levels, suggesting that the tubers of M. tuberosa possess hepatoprotective property and this property may be attributed to the antioxidant property of the plant.