The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Aparna Gomes - One of the best experts on this subject based on the ideXlab platform.
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viper and cobra venom neutralization by β sitosterol and stigmasterol isolated from the root extract of pluchea indica less asteraceae
Phytomedicine, 2007Co-Authors: Aparna Gomes, Archita Saha, Ipshita Chatterjee, A K ChakravartyAbstract:Abstract We reported previously that the methanolic root extract of the Indian medicinal plant Pluchea indica Less. (Asteraceae) could neutralize viper venom-induced action [Alam, M.I., Auddy, B., Gomes, A., 1996. Viper venom neutralization by Indian medicinal plant (Hemidesmus indicus and P. indica) root extracts. Phytother. Res. 10, 58–61]. The present study reports the neutralization of viper and cobra venom by β-sitosterol and stigmasterol isolated from the root extract of P. indica Less. (Asteraceae). The active fraction (containing the major compound β-sitosterol and the minor compound stigmasterol) was isolated and purified by silica gel column chromatography and the structure was determined using spectroscopic analysis (EIMS, 1H NMR, 13C NMR). Anti-snake venom activity was studied in experimental animals. The active fraction was found to significantly neutralize viper venom-induced lethal, hemorrhagic, defibrinogenation, edema and PLA2 activity. Cobra venom-induced lethality, cardiotoxicity, neurotoxicity, respiratory changes and PLA2 activity were also antagonized by the active component. It potentiated commercial snake venom antiserum action against venom-induced lethality in male albino mice. The active fraction could antagonize venom-induced changes in lipid peroxidation and superoxide dismutase activity. This study suggests that β-sitosterol and stigmasterol may play an important role, along with antiserum, in neutralizing snake venom-induced actions.
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Viper venom neutralization by Indian medicinal plant (Hemidesmus indicus and Pluchea indica) root extracts
Phytotherapy Research, 1996Co-Authors: M.i. Alam, Biswajit Auddy, Aparna GomesAbstract:The methanol root extracts of Hemidesmus indicus R. Br. and Pluchea indica (Less) were explored for the first time for neutralization of snake venom (Vipera russellii) activity. The H. indicus and P. indica root extracts significantly neutralized the viper venom-induced lethality and haemorrhagic activity in albino rat and mouse. Venom-induced coagulant and anticoagulant activity was also antagonized by both the extracts. No precipitating bands were observed between the plant extract and polyvalent snake venom antiserum. Maximum neutralization was achieved by H. indicus root extract. These observations confirmed that certain Indian medicinal plants possess significant snake venom neutralizing capacity and need further examination for their active constituents.
Y K Mathur - One of the best experts on this subject based on the ideXlab platform.
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food bait preference of indian gerbil tatera indica indica hardwicke and bandicoot rat bandicota bengalensis gray
Journal of entomological research, 1994Co-Authors: A S Bhadauria, Y K MathurAbstract:Out of six cereals, viz, rice, maize, wheat, barley, jowar and bajra, and two pulses, viz, gram and pea, fed separately in the laboratory to Indian gerbil (Tatera indica indica Hardwicke) and bandicoot rat, (Bandicota bengalensis Gray), wheat was the most preferred food, followed by rice, gram, maize, bajra, jowar, pea and barley for bandicoot rat, B. bengalensis. In the case of T. indica indica, the order of preference of different food was: rice, wheat, bajra, maize, jowar, gram, barley and pea. Thus, wheat and rice can be successfully used as bait materials for both the species of field rats. Also, gram and bajra can be used as alternative food for them.
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Food/bait preference of Indian gerbil, Tatera indica indica Hardwicke and bandicoot rat, Bandicota bengalensis Gray
Journal of entomological research, 1994Co-Authors: A S Bhadauria, Y K MathurAbstract:Out of six cereals, viz, rice, maize, wheat, barley, jowar and bajra, and two pulses, viz, gram and pea, fed separately in the laboratory to Indian gerbil (Tatera indica indica Hardwicke) and bandicoot rat, (Bandicota bengalensis Gray), wheat was the most preferred food, followed by rice, gram, maize, bajra, jowar, pea and barley for bandicoot rat, B. bengalensis. In the case of T. indica indica, the order of preference of different food was: rice, wheat, bajra, maize, jowar, gram, barley and pea. Thus, wheat and rice can be successfully used as bait materials for both the species of field rats. Also, gram and bajra can be used as alternative food for them.
Javad Meshkani - One of the best experts on this subject based on the ideXlab platform.
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variation of the auditory system in the indian gerbil tatera indica hardwicke 1807 muridae rodentia from the east of iran
Journal of Asia-Pacific Biodiversity, 2019Co-Authors: Asghar Khajeh, Zeinolabedin Mohammadi, Fatemeh Ghorbani, Javad MeshkaniAbstract:Abstract The Indian Gerbil (Tatera indica) is one of the most successful species in the east of Iran regarding the population size and distributional range. Many factors are effective in the success of this species, but the tympanic bulla and external ear with a special role in increasing sensitivity could be very important. In this study, these two characters were examined in 108 skulls of the adult Indian Gerbil from different localities in the east of Iran. The results of this study show an increasing trend in the volume of tympanic bulla and length of external ear from higher to the lower latitudes in accordance with Allen's rule. This increase is significant in the southeast Iran population. The increase of the body size in the Indian Gerbil was also documented from the northeast toward the southeast Iran. The negative correlation between the body size and latitude implies thermoregulatory response of the Indian Gerbil to the cold climate of the northeast Iran. It can also reflect food scarcity in desert areas of the southeast Iran comparing with the northeast areas inhabiting by the Indian Gerbil. This study proposed that an increase in auditory sensitivity would be advantageous for the gerbil's ability to escape predation, to mate, and to compete for resources.
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Variation of the auditory system in the Indian Gerbil, Tatera indica Hardwicke, 1807, (Muridae, Rodentia) from the east of Iran
Elsevier, 2019Co-Authors: Asghar Khajeh, Zeinolabedin Mohammadi, Fatemeh Ghorbani, Javad MeshkaniAbstract:The Indian Gerbil (Tatera indica) is one of the most successful species in the east of Iran regarding the population size and distributional range. Many factors are effective in the success of this species, but the tympanic bulla and external ear with a special role in increasing sensitivity could be very important. In this study, these two characters were examined in 108 skulls of the adult Indian Gerbil from different localities in the east of Iran. The results of this study show an increasing trend in the volume of tympanic bulla and length of external ear from higher to the lower latitudes in accordance with Allen's rule. This increase is significant in the southeast Iran population. The increase of the body size in the Indian Gerbil was also documented from the northeast toward the southeast Iran. The negative correlation between the body size and latitude implies thermoregulatory response of the Indian Gerbil to the cold climate of the northeast Iran. It can also reflect food scarcity in desert areas of the southeast Iran comparing with the northeast areas inhabiting by the Indian Gerbil. This study proposed that an increase in auditory sensitivity would be advantageous for the gerbil's ability to escape predation, to mate, and to compete for resources. Keywords: Auditory system, Ear length, Indian Gerbil, Tatera indica, Tympanic bull
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a study of intraspecies variations of indian gerbil tatera indica hardwicke 1807 muridae rodentia in eastern border of iran
Pakistan Journal of Biological Sciences, 2010Co-Authors: Asghar Khajeh, Javad MeshkaniAbstract:In this study, 93 specimens of adult Indian Gerbil (Tatera indica) were collected by live-trap from different localities of Eastern Border of Iran. Specimens were collected among 3 populations from Torbat-e-Jam, Sistan and Chabahar with North longitude 60 degrees-61.5 degrees and East latitude 25.50 degrees-35.50 degrees. At first, external and cranial characters were measured and then ratio of measured characters to head and body length were calculated. It showed that there are differences in characters of Indian gerbils in various latitudes while ratio of measured characters to head and body length were compared between these 3 populations. These differences are more obvious in Chabahar so that 16 from 23 characters are significantly higher than those in Torbat-e-Jam and Sistan and 3 characters are significantly lower than those from two other localities. Also, 4 characters have no significant difference in these populations. The result of MANCOVA showed that there are no significant differences between sexes. This study tries to shed some more light on the effect of climate changes and height on morphometric changes of Indian gerbil in Eastern border of Iran.
K P Bland - One of the best experts on this subject based on the ideXlab platform.
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reproduction in the female indian gerbil tatera indica
Journal of Zoology, 2009Co-Authors: K P BlandAbstract:The Indian gerbil, Tatera indica (Hardwicke) has been successfully maintained under laboratory conditions for 18 months, during which time over 250 vaginal cycles were recorded and 30 litters were born. Under laboratory conditions this animal had four-to-five-day oestrous cycles and sterile mating induced a ten-day pseudopregnancy. Anoestrus was not infrequent and was characterized by the absence of corpora lutea and large follicles from the ovaries and the atrophy of the uterus. The mean length of pregnancy was 22.3 days (range 18–30 days) and the litter size varied from two to seven young (mean 4.76 young). Mating at the post-partum oestrus resulted in delayed implantation if a litter of three or more young was being suckled. Under these circumstances pregnancy lasted 36 days (range 34–40 days). Implantation was interstitial and mesometrial. The chorioallantoic placenta was discoidal, labyrinthine and haemochorial probably becoming haemoendothelial just before term. Daily injection of ovine prolactin inhibited the occurrence of oestrus and caused enlargement of the corpora lutea in three of five animals. It is suggested that prolactin might be the luteotrophic hormone in this species.
Xue Xiao-ming - One of the best experts on this subject based on the ideXlab platform.
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A Survey on the Micro-morphologic Character of Four Carnivore's Straight Guard Hair
Journal of Nanjing Forestry University, 2006Co-Authors: Xue Xiao-mingAbstract:A study of scale pattern of straight guard hair's from the back,the abdomen,the neck and the hip of Large Indian civet(Viverra zibetha),Small Indian civet(Viverricula indica),Masked palm civet(Paguma larvata) and Leopard cat(Felis bengalensis) was conducted by scanning electronic microscope and optics microscope.The result showed that there were differences in the scale pattern between families,genera and species,the differences were also found in different parts of the same animal and different parts of the same hair.The four mammals would be distinguished by analyzing the micro-structural morphologic characters of their hair,but there existed difficulty were distinguished identification.
