Abstract：
:A monovalent antivenom was produced by immunizing two horses with venom of the pit viper Bothrops asper (Ophidia: Viperidae). Although development of the immune response against four toxic and enzymatic activities of the venom was similar in both horses during the first two thirds of the immunization schedule, antibody response in one of the horses reached much higher levels in the last part of the immunization. Immunoelectrophoretic analysis indicates that there were precipitating antibodies in the sera of these horses during all the stages of immunization. However, immunoprecipitation did not correlate with the ability of sera to neutralize toxic activities of B. asper venom. Monovalent antivenom was more effective than the commercially available polyvalent antivenom in the neutralization of Bothrops asper venom. On the other hand, despite the fact that it neutralizes lethal and hemorrhagic activities of the venoms of Lachesia muta and Crotalus durissus durissus, it was less effective than polyvalent antivenom in these neutralizations. Moreover, it does not neutralize defibrinating activity induced by these two venoms, whereas it neutralizes this effect in the case of B. asper venom. It is proposed that monovalent antivenom may be highly effective in the case of envenomations induced by Bothrops asper venom; its use in treating accidents by L. muta and C. durissus would be indicated only if polyvalent antivenom is not available. Results also demonstrate that it is important to monitor antibody response individually in horses being immunized for antivenom production, due to the conspicuous variability in the response of different animals.
journal_name
Rev Biol Tropjournal_title
Revista de biologia tropicalauthors
Gutiérrez JM,Chaves F,Rojas E,Elizondo J,Avila C,Cerdas Lsubject
Has Abstractpub_date
1988-11-01 00:00:00pages
511-7issue
2Beissn
0034-7744issn
2215-2075journal_volume
36pub_type
杂志文章,评审abstract：:Captivity represents an extreme situation for primates, especially for those with large home ranges, and its effect on their behavior might be considerable. The Wedge-capped Capuchin Monkey Cebus olivaceus is the most common primate in Venezuelan zoos. To estimate the effect of confinement on C. olivaceus behavior, we...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2008-09-01 00:00:00
abstract：:The karyotypes of the purple snails Plicopurpura pansa (Gould, 1853) and P. columellaris (Lamarck, 1816) were established from 17 and 13 adults, respectively; and from eight capsules with embryos of P. pansa. In P. pansa were counted 59 mitotic fields in the adults and 127 in embryos; and 118 fields in P columellaris....
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2007-09-01 00:00:00
abstract：:Blood inoculation in mice showed that Toxoplasma organisms circulate in blood after 1 h of oocyst infection. Parasites were detected up to 15 days later and then disappeared from the bloodstream concomitantly with cyst formation in the brain, probably due to antibody presence. Immunosuppression caused by cortisone ace...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1993-08-01 00:00:00
abstract：:Four sampling stations were set 200-500 m off Limon Port, Costa Rica, at an average depth of 20 m. From October 1996 to May 1997 horizontal subsuperficial trawls were done for 12 minutes at a speed of about 2 Km/h, with a 1,000 microns plancton net. A total of 28 samples were processed and 104 physical-chemistry param...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
abstract：:Several factors control the decomposition in terrestrial ecosystems such as humidity, temperature, quality of litter and microbial activity. We investigated the effects of rainfall and soil plowing prior to the establishment of Acacia mangium plantations, using the litterbag technique, during a six month period, in fo...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2011-03-01 00:00:00
abstract：:Puerulus settlement of the western Atlantic spiny lobster, Panulirus argus, was monitored using modified Witham collectors from December 1996 to March 1998 at seven sites around St. Thomas, U.S. Virgin Islands. A total of 605 pueruli were collected from 553 samples for a catch per unit effort (CPUE) for all sites of 1...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2003-06-01 00:00:00
abstract：:The land crab Gecarcinus quadratus is an engineering species that controls nutrient cycling in tropical forests. Factors regulating their coastal distribution are not fully understood. We quantified land crab distribution during the dry season at Sirena Field Station in Corcovado National Park, Costa Rica, and found t...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v55i1.6073
更新日期：2007-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v64i4.21668
更新日期：2016-12-01 00:00:00
abstract：:Specimens of the characid Brycinus nurse (N = 980) were collected in Asa reservoir, Nigeria, from November 1991 to October 1993. The diet was analyzed from stomach contents using the frequency of occurrence, numerical and gravimetric methods. Fish sex affected occurrence, number and weight of food items. The relative ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2002-03-01 00:00:00
abstract：:Huperzia brevifolia is one of the dominant species of the genus Huperzia living in paramos and superparamos from the Colombian Andes. A detailed study of the sporangium's ontogeny and sporogenesis was carried out using specimens collected at 4200m above sea level, in Parque Natural Nacional El Cocuy, Colombia. Small p...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2009-12-01 00:00:00
abstract：:Panulirus gracilis is a high valuable lobster species with considerable captures along the tropical Pacific coast. In this study, I present some biological and fishery parameters described after a sample of 843 lobsters, landed in Playa Lagarto from November 2007 to October 2008. From landing records, a total of 74.9%...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2011-06-01 00:00:00
abstract：:In Costa Rica, cervical cancer is the second most common female cancer, despite accessibility of screening through the universal health care system. There is little understanding of knowledge levels of the adolescent population on cervical cancer, although this population is the most exposed to risk factors. This stud...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v62i3.14063
更新日期：2014-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1976-06-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2013-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2003-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2004-12-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2014-04-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v64i1.17923
更新日期：2016-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2001-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v60i3.1758
更新日期：2012-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：2012-03-01 00:00:00
abstract：:Parasites play a crucial role in the ecology of animals. They also appear to be important in mechanisms underlying sexual selection processes. In this article we study the prevalence, effect and potential role in sexual selection of the protozoon Trypanosoma evansi in capybaras, Hydrochoerus hydrochaeris. We collected...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：2017-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：:Paternal behavior and testosterone plasma levels in the Volcano Mouse Neotomodon alstoni (Rodentia: Muridae). Although initially it was thought that testosterone inhibited the display of paternal behavior in males of rodents, it has been shown that in some species high testosterone levels are needed for exhibition of ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v57i1-2.11360
更新日期：2009-03-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
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更新日期：2007-09-01 00:00:00
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journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
abstract：:Turbinella angulata and Busycon perversum are two marine gastropods that support the 90% of conch fisheries in the Gulf of Mexico, nevertheless there is no information available to support a management strategy for both species. The aim of this work was to obtain preliminary fishery information to promote management a...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2013-03-01 00:00:00
