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Wyszukujesz frazę "Nandakumar, R." wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
The genetic diversity of HLA DRB1* alleles among Indian and African populations
Autorzy:
Nandakumar, R.
Powiązania:
https://bibliotekanauki.pl/articles/1158256.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Admixture
Demography
HLA DRB1
Indian and African populations
Migration
Population Genetics
Opis:
The HLA system is highly polymorphic and commonly used as a marker to understand core population genetical aspects such as stratification, human migration, predisposition to diseases and tissue transplantation compatibility. Although HLA alleles are generally treated as equidistant molecular units in population genetic studies, the diversity of DNA allelic frequencies among populations is also considered to be crucial to interpret the observed HLA polymorphisms. This study compares the variation of HLA DRB1 alleles across various subgroups of both Indian and African Populations, using their respective allelic frequencies. The HLA DRB1 allelic frequencies for 3,153 individuals of 32 subgroups of both Indian and African populations, were collected from the Allele Frequency Net Database (AFND). Correlation matrix and Grid diagram were compiled using the R statistical package. Allele frequencies were analyzed for the respective population subgroups using XLSTAT. The North East Indian populations were completely devoid of HLA DRB1* 16, which is fairly present in south Indian populations. The South Indian populations harbor both HLA DRB1* 10 and HLA DRB1* 15 at relatively higher levels but are very scarce of HLA DRB1* 07, HLA DRB1* 09, HLA DRB1* 12 and HLA DRB1* 13. The alleles HLA DRB1* 03, HLA DRB1* 04 and HLA DRB1* 07 could represent an epicenter for the admixture of African, North-East Indian and South Indian populations.
Źródło:
World Scientific News; 2018, 114; 15-29
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Autosomal DNA Polymorphisms of Four South India Tribal Populations
Autorzy:
Deva, A.
Nandakumar, R.
Raghu, P.
Prabhakaran, K.
Powiązania:
https://bibliotekanauki.pl/articles/1190117.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Tribal
Dravidian
Genome Diversity
Heterozygosity
Autosomal Markers
Opis:
Background: The entry and dispersal of modern humans is India of remains unclear and extending with many interesting evidences South India, assumed to be a major corridor for their with many ancient genetic deposits such as Dravidian tribal with Negrito features. As the relationships between the genetic polymorphs and diseases in human being revealed globally, it is worthy to investigate the genomic architecture of population in south India. Objective: To examine what evolutionary forces have most significantly impacted south Indian tribal genetic variation, and to test whether the phenotypic similarities of some south Indian tribal groups to Africans represent a signature of close relationship to Africans or are due to convergence. Methods: Blood samples from 193 unrelated individuals of both sexes are drawn from the Dravidian tribal settlements of Tamil Nadu and Kerala. South India are genotyped for four Aluindel (Alu FXIIIB, Alu ACE, AluTA25 and Alu PLAT) allele profile by PCR genotyping method. Results: All loci are highly polymorphic and average heterozygositiesare substantial (range: 0.37-0.44). Genetic differentiation is high (Gst = 3.7%) in all the study populations.
Źródło:
World Scientific News; 2016, 35; 62-72
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dodonaea viscosa Linn used disease by Irula tribes Kanchipuram District Tamil Nadu, India
Autorzy:
Nandakumar, R.
Rajikannun, M.
Kalaiselvan, D.
Sirkanth, G.
Kumar, P.
Powiązania:
https://bibliotekanauki.pl/articles/1177761.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Dodonaea viscosa
Irula tribes
traditional medicine
Opis:
India is known for its rich flora and fauna, diverse climatic areas and wealth of living ethno medicinal plant using the tradition. The paper enumerates medicinal plants used by Irula tribes Kanchipuram district, Tamil Nadu. The traditional practises of three medicinal plants belonging to three families are obtainable with botanical name, family, local name, parts used, method of groundwork and ethno pharmaceutical uses. Medicinal plants were the richest source of India with many traditional uses. Numerous of the pharmacological and pharmacognostical studies of the medicinal plants shown their active application in the field of medicine as they possess certain nutrient and non-nutrient substances that protects and precludes the body from many diseases. They attain a great helpfulness in the present world due to the side effects of the manmade drugs on the human life. Dodonaea viscosa Linn. is an evergreen woody perennial shrub with a native of Australia, indigenous and was later wide spread throughout the region of tropics. Various plant parts such as stem, leaves, seeds, roots, bark and aerial parts were used as the antibacterial, analgesic antiviral, anti-inflammatory, antiulcer and antioxidant agent in traditional system of medicine.
Źródło:
World Scientific News; 2018, 100; 99-109
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of botanicals against: Mosquito Larvae to the Extracts of Fungus Beauveria Species
Autorzy:
Raj, M. Muni
Srikanth, G.
Rajikkannu, M.
Nandakumar, R.
Powiązania:
https://bibliotekanauki.pl/articles/1178276.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Armegeries subalbatus and Anopheles
Beauveria species
Culex quiquefaciatus
Opis:
The larvicidal activity of Beauveria species on mosquito Culex quiquefaciatus, Armegeries subalbatus and Anopheles species was done, penicilliumis a large genus of filamentous fungi widely distributed in soil and in associated with plants. It was observed that more toxicity of Beauveria extract towards the larvae of Anopheles species than Culex quinquifaciatus, The toxicity was lesser in Aremgeries subalbatus, The toxicity range was observed between 100 ppm to 250 ppm. The toxicity on mosquito may be due to the toxins, and secondary metabolites of Beauveria species. Cyanide also creates toxicity on larvae, Beauveria based mosquito control can be done after field trials under controlled environment.
Źródło:
World Scientific News; 2017, 88, 2; 199-210
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Bacillus coagulans and B. firmus incorporated probiotic diet on Superoxide dismutase activity and catalase activity in Penaeus monodon
Autorzy:
Raghu, P.
Rajikkannu, M.
Baburajan, R.
Deva, A.
Nandakumar, R.
Masilamni, V.
Prabhakaran, K.
Powiązania:
https://bibliotekanauki.pl/articles/1190216.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Probiotics
Penaeus monodon
V. Parahaemolyticus
SOD and CAT activity
Opis:
In the present study was Vibrio species from wild marine shrimp, Penaeus monodon and to study its effect on the probiotic feed supplemented organism, when artificially in infected. Biochemical changes during infection of Vibrio parahamolyticus was evaluated by studying the Superoxide dismutase activity and catalase activity after infection. The superoxide dismutase activity and catalase activity in hepatopancreas was estimated in prawns from all the three feed groups. There was significant variation in the SOD activity and catalase activity in all three groups, after 30 days of feeding, uniformly they recorded gain in the activity. The SOD activity was 2.65 in control animals, 5.8 in B. coagulans supplemented animals, and 4.4 in B. firmus supplemented animals and catalase activity was 15.8 in control animals, 29.0 in B. coagulans supplemented animals, and 26.3 in B. firmus supplemented animals. The presence of this B. coagulans and B. firmus could protect the aquatic animals against the infection by pathogenic bacteria and might be applied as good probiotics in aquaculture.
Źródło:
World Scientific News; 2016, 44; 224-235
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on the Mammalian Diversity of Dimapur, Nagaland, India
Autorzy:
Phejen, P.
Ao, Semsadangla
Thongliu, Shiutsu K.
Nienu, Razoukhrulu
Konyak, Shomying K.
Yanthan, Rollen
Vijila, Vincy
Nandakumar, R.
Powiązania:
https://bibliotekanauki.pl/articles/1158600.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
District Dimapur
Mammals
Naga tribal
Opis:
The exploration of mammalian diversity distributed at the tribal district of Dimapur in Nagaland, India revealed the presence of a diverse population of 16 species of mammals belonging to 16 genera, 16 families. The species of order Primate and a single species of order Oryctolagus cuniculus were observed in the Dimapur. The mammalian species reported presented an assemblage of unique and threatened species of mammals. The analysis of data revealed that Hoolock hoolock (Harlan, 1834) endogered species, Ursus thibetanus (G. Cuvier, 1823), Panthera pardus (Linnaeus, 1758) valnerble species and Oryctolagus cuniculus (Linnaeus, 1758) near threatened species have been listed in IUCN 3.1, while out of the sixty specie s reported ten species have been placed under different schedules of Indian Wildlife (Protection) Act 1972. A total of sixty species reported from the study area was found to be declared threatened by IUCN 3.1.
Źródło:
World Scientific News; 2018, 114; 126-136
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reptiles diversity in Dimapur of North East India
Autorzy:
Yanthungbeni, Margret
Kwabamli, Kwabamli
Hemsu, H.
Phom, Lily
Phom, M. Meyuchila
Yanthan, Rollen
Vijila, Vincy
Nandakumar, R.
Powiązania:
https://bibliotekanauki.pl/articles/1158637.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
District Dimapur
Reptile
diversity Naga tribal
Opis:
The goal of this research is to collect and identify the specimens of reptiles that are found in and around Dimapur, Nagaland. As per the research the data on 12 specimens were collected belonging to snakes, lizards and tortoise. The research highlights the diversity and variety of the types of reptiles present in the Nagaland, and also the possibility of discovering many more. We strongly require intensive studies to document reptiles and other biota of the state. Conservation of biodiversity involving local communities would be the best possible option in Nagaland, as the forest area are largely owned by people. Geochelone elegans (Schoepff, 1795), Python molurus (Linnaeus, 1758), Python binittatus (Kuhl, 1820) and Cuora amboinesis (Daudin, 1802), a total of three species reported from the study area were found to be declared threatened by IUCN 3.1.
Źródło:
World Scientific News; 2018, 114; 164-176
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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