Coronary anomalies are rare, with a reported prevalence of 1.3% among patients who undergo coronary angiography. The great majority of coronary artery anomalies are incidental findings and are not clinically significant, but in some cases, may be responsible for angina,…

Aeschynomene sousae Rudd ex A. Delgado et Sotuyo is described from southern Oaxaca, Mexico, where it is likely endemic to the northeast mountains of the Isthmus of Tehuantepec. It is a member of series Scopariae of subgenus Ochopodium, and morphologically…

Prediction of prone areas for mass movement processes (MMP) is one of the major challenges in mountainous areas. This is the case of the Motozintla basin that is located along the Motagua-Polochic fault system in the Chiapas State southeastern Mexico.…

This article discusses the role of evidence-based media advocacy in the promotion of tobacco control policies. Evidence is a driving force for campaigns seeking to implement a tobacco control policy. An effective campaign is based in evidence that demonstrates why…

OBJECTIVE: To provide a brief history of the illicit tobacco trade between Mexico and the United States. MATERIALS AND METHODS: Research included a previously published study: "Cigarette taxes and smuggling: A statistical analysis and historical review", published by the Mackinac…

A 54-year male with previous triple vessel coronary artery and aorto-bifemoral bypass graft surgeries complained of crescent angina. Stress induced myocardial ischemia on echocardiography was demonstrated. We performed direct stenting of a saphenous vein graft to the right coronary artery,…

Twenty one species and subspecies of Exetastes Grav. are recorded from Mexico. Exetastes arteagus sp. nov., E. gauldi sp. nov. and E. lascivus sp. nov. are described as new. Exetastes pasculus Gauld et Ugalde is recorded for the first time…

Urbanization limits the number and type of species that can colonize urban environments. As habitat change and large abundances of urban exploiter species have been related to changes in urban bird communities, we evaluated shifts in the bird communities in…

Objective: Our aim was to evaluate the effect of the baroreflex mechanism upon peripheral blood volume during sympathetic stimulation by orthostatism. Methods: Nineteen clinically healthy volunteers were included (12 men), 28.4 ± 6.2 years old. Blood pressure was monitored with…

Diplocentrus churumuco sp. nov., from the Balsas River Basin in Michoacan, Mexico is described and clearly differentiated from its nearest relatives. The tarsomere II spine formula is 4/4:4/4:5/5:5/5. Pectinal tooth counts are 9- 10 in males, and 7- 8 in…