The Experts below are selected from a list of 21858 Experts worldwide ranked by ideXlab platform

Adly M. M. Abd-alla - One of the best experts on this subject based on the ideXlab platform.

  • The Bacterial Flora of tsetse fly midgut and its effect on trypanosome transmission
    Journal of Invertebrate Pathology, 2013
    Co-Authors: Illiassou Hamidou Soumana, Flobert Njiokou, Gustave Simo, Bernadette Tchicaya, Adly M. M. Abd-alla
    Abstract:

    The tsetse fly, Glossina palpalis is a vector of the trypanosome that causes sleeping sickness in humans and nagana in cattle along with associated human health problems and massive economic losses. The insect is also known to carry a number of symbionts such as Sodalis, Wigglesworthia, Wolbachia whose effects on the physiology of the insect have been studied in depth. However, effects of other Bacterial Flora on the physiology of the host and vector competence have received little attention. Epidemiological studies on tsetse fly populations from different geographic sites revealed the presence of a variety of bacteria in the midgut. The most common of the Flora belong to the genera Entrobacter (most common), Enterococcus, and Acinetobacter. It was a little surprising to find such diversity in the tsetse midgut since the insect is monophagous consuming vertebrate blood only. Diversity of bacteria is normally associated with polyphagous insects. In contrast to the symbionts, the role of resident midgut Bacterial Flora on the physiology of the fly and vector competence remains to be elucidated. With regard, Sodalis glossinidius, our data showed that flies harbouring this symbiont have three times greater probability of being infected by trypanosomes than flies without the symbiont. The data delineated in these studies under score the need to carry out detailed investigations on the role of resident bacteria on the physiology of the fly and vector competence. (Résumé d'auteur

  • The Bacterial Flora of tsetse fly midgut and its effect on trypanosome transmission.
    Journal of invertebrate pathology, 2012
    Co-Authors: Illiassou Hamidou Soumana, Flobert Njiokou, Gustave Simo, Bernadette Tchicaya, Adly M. M. Abd-alla
    Abstract:

    The tsetse fly, Glossina palpalis is a vector of the trypanosome that causes sleeping sickness in humans and nagana in cattle along with associated human health problems and massive economic losses. The insect is also known to carry a number of symbionts such as Sodalis, Wigglesworthia, Wolbachia whose effects on the physiology of the insect have been studied in depth. However, effects of other Bacterial Flora on the physiology of the host and vector competence have received little attention. Epidemiological studies on tsetse fly populations from different geographic sites revealed the presence of a variety of bacteria in the midgut. The most common of the Flora belong to the genera Entrobacter (most common), Enterococcus, and Acinetobacter. It was a little surprising to find such diversity in the tsetse midgut since the insect is monophagous consuming vertebrate blood only. Diversity of bacteria is normally associated with polyphagous insects. In contrast to the symbionts, the role of resident midgut Bacterial Flora on the physiology of the fly and vector competence remains to be elucidated. With regard, Sodalis glossinidius, our data showed that flies harbouring this symbiont have three times greater probability of being infected by trypanosomes than flies without the symbiont. The data delineated in these studies under score the need to carry out detailed investigations on the role of resident bacteria on the physiology of the fly and vector competence.

Floyd E Dewhirst - One of the best experts on this subject based on the ideXlab platform.

  • defining the normal Bacterial Flora of the oral cavity
    Journal of Clinical Microbiology, 2005
    Co-Authors: Jorn A Aas, Bruce J Paster, Lauren N Stokes, Ingar Olsen, Floyd E Dewhirst
    Abstract:

    More than 700 Bacterial species or phylotypes, of which over 50% have not been cultivated, have been detected in the oral cavity. Our purposes were (i) to utilize culture-independent molecular techniques to extend our knowledge on the breadth of Bacterial diversity in the healthy human oral cavity, including not-yet-cultivated bacteria species, and (ii) to determine the site and subject specificity of Bacterial colonization. Nine sites from five clinically healthy subjects were analyzed. Sites included tongue dorsum, lateral sides of tongue, buccal epithelium, hard palate, soft palate, supragingival plaque of tooth surfaces, subgingival plaque, maxillary anterior vestibule, and tonsils. 16S rRNA genes from sample DNA were amplified, cloned, and transformed into Escherichia coli. Sequences of 16S rRNA genes were used to determine species identity or closest relatives. In 2,589 clones, 141 predominant species were detected, of which over 60% have not been cultivated. Thirteen new phylotypes were identified. Species common to all sites belonged to the genera Gemella, Granulicatella, Streptococcus, and Veillonella. While some species were subject specific and detected in most sites, other species were site specific. Most sites possessed 20 to 30 different predominant species, and the number of predominant species from all nine sites per individual ranged from 34 to 72. Species typically associated with periodontitis and caries were not detected. There is a distinctive predominant Bacterial Flora of the healthy oral cavity that is highly diverse and site and subject specific. It is important to fully define the human microFlora of the healthy oral cavity before we can understand the role of bacteria in oral disease.

Illiassou Hamidou Soumana - One of the best experts on this subject based on the ideXlab platform.

  • The Bacterial Flora of tsetse fly midgut and its effect on trypanosome transmission
    Journal of Invertebrate Pathology, 2013
    Co-Authors: Illiassou Hamidou Soumana, Flobert Njiokou, Gustave Simo, Bernadette Tchicaya, Adly M. M. Abd-alla
    Abstract:

    The tsetse fly, Glossina palpalis is a vector of the trypanosome that causes sleeping sickness in humans and nagana in cattle along with associated human health problems and massive economic losses. The insect is also known to carry a number of symbionts such as Sodalis, Wigglesworthia, Wolbachia whose effects on the physiology of the insect have been studied in depth. However, effects of other Bacterial Flora on the physiology of the host and vector competence have received little attention. Epidemiological studies on tsetse fly populations from different geographic sites revealed the presence of a variety of bacteria in the midgut. The most common of the Flora belong to the genera Entrobacter (most common), Enterococcus, and Acinetobacter. It was a little surprising to find such diversity in the tsetse midgut since the insect is monophagous consuming vertebrate blood only. Diversity of bacteria is normally associated with polyphagous insects. In contrast to the symbionts, the role of resident midgut Bacterial Flora on the physiology of the fly and vector competence remains to be elucidated. With regard, Sodalis glossinidius, our data showed that flies harbouring this symbiont have three times greater probability of being infected by trypanosomes than flies without the symbiont. The data delineated in these studies under score the need to carry out detailed investigations on the role of resident bacteria on the physiology of the fly and vector competence. (Résumé d'auteur

  • The Bacterial Flora of tsetse fly midgut and its effect on trypanosome transmission.
    Journal of invertebrate pathology, 2012
    Co-Authors: Illiassou Hamidou Soumana, Flobert Njiokou, Gustave Simo, Bernadette Tchicaya, Adly M. M. Abd-alla
    Abstract:

    The tsetse fly, Glossina palpalis is a vector of the trypanosome that causes sleeping sickness in humans and nagana in cattle along with associated human health problems and massive economic losses. The insect is also known to carry a number of symbionts such as Sodalis, Wigglesworthia, Wolbachia whose effects on the physiology of the insect have been studied in depth. However, effects of other Bacterial Flora on the physiology of the host and vector competence have received little attention. Epidemiological studies on tsetse fly populations from different geographic sites revealed the presence of a variety of bacteria in the midgut. The most common of the Flora belong to the genera Entrobacter (most common), Enterococcus, and Acinetobacter. It was a little surprising to find such diversity in the tsetse midgut since the insect is monophagous consuming vertebrate blood only. Diversity of bacteria is normally associated with polyphagous insects. In contrast to the symbionts, the role of resident midgut Bacterial Flora on the physiology of the fly and vector competence remains to be elucidated. With regard, Sodalis glossinidius, our data showed that flies harbouring this symbiont have three times greater probability of being infected by trypanosomes than flies without the symbiont. The data delineated in these studies under score the need to carry out detailed investigations on the role of resident bacteria on the physiology of the fly and vector competence.

Jorn A Aas - One of the best experts on this subject based on the ideXlab platform.

  • defining the normal Bacterial Flora of the oral cavity
    Journal of Clinical Microbiology, 2005
    Co-Authors: Jorn A Aas, Bruce J Paster, Lauren N Stokes, Ingar Olsen, Floyd E Dewhirst
    Abstract:

    More than 700 Bacterial species or phylotypes, of which over 50% have not been cultivated, have been detected in the oral cavity. Our purposes were (i) to utilize culture-independent molecular techniques to extend our knowledge on the breadth of Bacterial diversity in the healthy human oral cavity, including not-yet-cultivated bacteria species, and (ii) to determine the site and subject specificity of Bacterial colonization. Nine sites from five clinically healthy subjects were analyzed. Sites included tongue dorsum, lateral sides of tongue, buccal epithelium, hard palate, soft palate, supragingival plaque of tooth surfaces, subgingival plaque, maxillary anterior vestibule, and tonsils. 16S rRNA genes from sample DNA were amplified, cloned, and transformed into Escherichia coli. Sequences of 16S rRNA genes were used to determine species identity or closest relatives. In 2,589 clones, 141 predominant species were detected, of which over 60% have not been cultivated. Thirteen new phylotypes were identified. Species common to all sites belonged to the genera Gemella, Granulicatella, Streptococcus, and Veillonella. While some species were subject specific and detected in most sites, other species were site specific. Most sites possessed 20 to 30 different predominant species, and the number of predominant species from all nine sites per individual ranged from 34 to 72. Species typically associated with periodontitis and caries were not detected. There is a distinctive predominant Bacterial Flora of the healthy oral cavity that is highly diverse and site and subject specific. It is important to fully define the human microFlora of the healthy oral cavity before we can understand the role of bacteria in oral disease.

Bernadette Tchicaya - One of the best experts on this subject based on the ideXlab platform.

  • The Bacterial Flora of tsetse fly midgut and its effect on trypanosome transmission
    Journal of Invertebrate Pathology, 2013
    Co-Authors: Illiassou Hamidou Soumana, Flobert Njiokou, Gustave Simo, Bernadette Tchicaya, Adly M. M. Abd-alla
    Abstract:

    The tsetse fly, Glossina palpalis is a vector of the trypanosome that causes sleeping sickness in humans and nagana in cattle along with associated human health problems and massive economic losses. The insect is also known to carry a number of symbionts such as Sodalis, Wigglesworthia, Wolbachia whose effects on the physiology of the insect have been studied in depth. However, effects of other Bacterial Flora on the physiology of the host and vector competence have received little attention. Epidemiological studies on tsetse fly populations from different geographic sites revealed the presence of a variety of bacteria in the midgut. The most common of the Flora belong to the genera Entrobacter (most common), Enterococcus, and Acinetobacter. It was a little surprising to find such diversity in the tsetse midgut since the insect is monophagous consuming vertebrate blood only. Diversity of bacteria is normally associated with polyphagous insects. In contrast to the symbionts, the role of resident midgut Bacterial Flora on the physiology of the fly and vector competence remains to be elucidated. With regard, Sodalis glossinidius, our data showed that flies harbouring this symbiont have three times greater probability of being infected by trypanosomes than flies without the symbiont. The data delineated in these studies under score the need to carry out detailed investigations on the role of resident bacteria on the physiology of the fly and vector competence. (Résumé d'auteur

  • The Bacterial Flora of tsetse fly midgut and its effect on trypanosome transmission.
    Journal of invertebrate pathology, 2012
    Co-Authors: Illiassou Hamidou Soumana, Flobert Njiokou, Gustave Simo, Bernadette Tchicaya, Adly M. M. Abd-alla
    Abstract:

    The tsetse fly, Glossina palpalis is a vector of the trypanosome that causes sleeping sickness in humans and nagana in cattle along with associated human health problems and massive economic losses. The insect is also known to carry a number of symbionts such as Sodalis, Wigglesworthia, Wolbachia whose effects on the physiology of the insect have been studied in depth. However, effects of other Bacterial Flora on the physiology of the host and vector competence have received little attention. Epidemiological studies on tsetse fly populations from different geographic sites revealed the presence of a variety of bacteria in the midgut. The most common of the Flora belong to the genera Entrobacter (most common), Enterococcus, and Acinetobacter. It was a little surprising to find such diversity in the tsetse midgut since the insect is monophagous consuming vertebrate blood only. Diversity of bacteria is normally associated with polyphagous insects. In contrast to the symbionts, the role of resident midgut Bacterial Flora on the physiology of the fly and vector competence remains to be elucidated. With regard, Sodalis glossinidius, our data showed that flies harbouring this symbiont have three times greater probability of being infected by trypanosomes than flies without the symbiont. The data delineated in these studies under score the need to carry out detailed investigations on the role of resident bacteria on the physiology of the fly and vector competence.