Md.Ruhul Abir | North South University (original) (raw)

Papers by Md.Ruhul Abir

Research paper thumbnail of Arsenic: health effects, mechanisms of actions, and research issues.

Environmental health …, Jan 1, 1999

A meeting on the health dfect of arsenic (As), its modes of action, and areas in need of future r... more A meeting on the health dfect of arsenic (As), its modes of action, and areas in need of future research was held in Hunt Valley, Maryland, on 22-24 September 1997. Exposure to As in drinking water has been associated with the devdopment of skin and interal cancers and noncarcinogenic effects such as diabetes, peripheral neuropathy, and cardiovacular diseases. There is little data on specific mechanism(s) of action for As, but a great deal of information on possible modes ofaction. Although arsenite [As(III)] can inhibit more than 200 enzymes, events underlying the induction of the noncarcinogenic effects of As are not understood. With respect to car-cinogenic4ty, As can affec DNA repair, methylation of DNA, and increase radical formation and activation of the protooncogene c-myn, but none of these potential wys have widespread acceptance as the principal etiologic event In addition, there are no accepted modes for the study of As-induced ogenesit At the final meeting session we considered research needs. Among the most important areas cited were a) As metabolism and its interaction with celiular constituents; 6) possible bioaccmulation ofAs; c) interactions with other metals; 4) effiects ofAs on genetic material; e) development of animal models and ceil systems to study effects ofAs; and Jp a better rerizaion of human exposures as related to health risks. Some of the barriers to Address correspondence to C.O. Abernathy, Office of Science and Technology (4304), Room 1037 East

Research paper thumbnail of Metal toxicity in the central nervous system.

Environmental Health Perspectives, Jan 1, 1987

The nervous system is the principal target for a number of metals. Inorganic compounds of aluminu... more The nervous system is the principal target for a number of metals. Inorganic compounds of aluminum, arsenic, lead, lithium, manganese, mercury, and thallium are well known for their neurological and behavioral effects in humans. The alkyl derivatives of certain metals-lead, mercury and tin-are specially neurotoxic. Concern over human exposure and in some cases, outbreaks of poisoning, have stimulated research into the toxic action of these metals.

Research paper thumbnail of The effects of arsenic exposure on the nervous system

Toxicology letters, Jan 1, 2003

Arsenic (As) is a common environmental contaminant widely distributed around the world. Human exp... more Arsenic (As) is a common environmental contaminant widely distributed around the world. Human exposure to this metalloid comes from well water and contaminated soil, from fish and other sea organisms rich in methylated arsenic species, and from occupational exposure.

Research paper thumbnail of Arsenic: health effects, mechanisms of actions, and research issues.

Environmental health …, Jan 1, 1999

A meeting on the health dfect of arsenic (As), its modes of action, and areas in need of future r... more A meeting on the health dfect of arsenic (As), its modes of action, and areas in need of future research was held in Hunt Valley, Maryland, on 22-24 September 1997. Exposure to As in drinking water has been associated with the devdopment of skin and interal cancers and noncarcinogenic effects such as diabetes, peripheral neuropathy, and cardiovacular diseases. There is little data on specific mechanism(s) of action for As, but a great deal of information on possible modes ofaction. Although arsenite [As(III)] can inhibit more than 200 enzymes, events underlying the induction of the noncarcinogenic effects of As are not understood. With respect to car-cinogenic4ty, As can affec DNA repair, methylation of DNA, and increase radical formation and activation of the protooncogene c-myn, but none of these potential wys have widespread acceptance as the principal etiologic event In addition, there are no accepted modes for the study of As-induced ogenesit At the final meeting session we considered research needs. Among the most important areas cited were a) As metabolism and its interaction with celiular constituents; 6) possible bioaccmulation ofAs; c) interactions with other metals; 4) effiects ofAs on genetic material; e) development of animal models and ceil systems to study effects ofAs; and Jp a better rerizaion of human exposures as related to health risks. Some of the barriers to Address correspondence to C.O. Abernathy, Office of Science and Technology (4304), Room 1037 East

Research paper thumbnail of Metal toxicity in the central nervous system.

Environmental Health Perspectives, Jan 1, 1987

The nervous system is the principal target for a number of metals. Inorganic compounds of aluminu... more The nervous system is the principal target for a number of metals. Inorganic compounds of aluminum, arsenic, lead, lithium, manganese, mercury, and thallium are well known for their neurological and behavioral effects in humans. The alkyl derivatives of certain metals-lead, mercury and tin-are specially neurotoxic. Concern over human exposure and in some cases, outbreaks of poisoning, have stimulated research into the toxic action of these metals.

Research paper thumbnail of The effects of arsenic exposure on the nervous system

Toxicology letters, Jan 1, 2003

Arsenic (As) is a common environmental contaminant widely distributed around the world. Human exp... more Arsenic (As) is a common environmental contaminant widely distributed around the world. Human exposure to this metalloid comes from well water and contaminated soil, from fish and other sea organisms rich in methylated arsenic species, and from occupational exposure.