Man

Alfredo Raul Ramírez Reveco

Profesor Asociado

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

Líneas de Investigación


Criobiologí­a y metabolismo espermático Bases celulares de la capacitación espermática en mamí­feros

Educación

  •  Genética, Biología Celular y Molecular, UNIVERSIDAD AUSTRAL DE CHILE. Chile, 2007

Experiencia Académica

  •   Académico, Profesor Asociado Full Time

    UNIVERSIDAD AUSTRAL DE CHILE

    Ciencias Veterinarias

    Valdivia, Chile

    2008 - A la fecha


 

Article (29)

Chronic Inflammatory Lameness Increases Cytokine Concentration in the Spinal Cord of Dairy Cows
Early differential gene expression in beef Longissimus thoracis muscles from carcasses with normal (< 5.8) and high (> 5.9) ultimate pH
In vitro capacitation and further progesterone-induced acrosome exocytosis are linked to specific changes in the expression and location of threonine phosphorylation of boar spermatozoa
LED-based red light photostimulation improves short-term response of cooled boar semen exposed to thermal stress at 37 degrees C
Spinal Reactive Oxygen Species and Oxidative Damage Mediate Chronic Pain in Lame Dairy Cows
In vitro inactivation of Mycobacterium avium subsp paratuberculosis (MAP) by use of copper ions
Effect of season, supplementation and fasting on glycolytic potential and activity of AMP-activated protein kinase, glycogen phosphorylase and glycogen debranching enzyme in grass-fed steers as determined in Longissimus lumborum muscle
Effects of storage time on the motility, mortality and calcium levels of Atlantic salmon Salmo salar spermatozoa
Diversidad genética al interior de los núcleos reproductivos de las razas pesadas del Plan Nacional de Fomento Equino basado en el análisis de loci microsatélites
Reevaluating the Sperm Nuclear Chromatin Decondensation Test by Sodium Thioglycolate of Stallions Spermatozoa
Glycolytic potential and activity of adenosine monophosphate kinase (AMPK), glycogen phosphorylase (GP) and glycogen debranching enzyme (GDE) in steer carcasses with normal (< 5.8) or high (> 5.9) 24 h pH determined in M. longissimus dorsi
Intracellular calcium movements of boar spermatozoa during "invitro' capacitation and subsequent acrosome exocytosis follow a multiple-storage place, extracellular calcium-dependent model
The Wnt1 ligand/Frizzled 3 receptor system plays a regulatory role in the achievement of the 'in vitro' capacitation and subsequent 'in vitro' acrosome exocytosis of porcine spermatozoa
Water contaminated with Didymosphenia geminata generates changes in Salmo salar spermatozoa activation times
How to obtain and isolate equine sternal bone marrow mononuclear cells with limited resources
Oligomycin A-induced inhibition of mitochondrial ATP-synthase activity suppresses boar sperm motility and in vitro capacitation achievement without modifying overall sperm energy levels
Presence and Function of Dopamine Transporter (DAT) in Stallion Sperm: Dopamine Modulates Sperm Motility and Acrosomal Integrity
Use of hypometabolic TRIS extenders and high cooling rate refrigeration for cryopreservation of stallion sperm: Presence and sensitivity of 5' AMP-activated protein kinase (AMPK)
Granulocyte-macrophage colony stimulating factor (GM-CSF) enhances cumulus cell expansion in bovine oocytes
Autologous implant of bone marrow mononuclear stem-cells as treatment for equine bicipital tendonitis: case report
In Vitro' Capacitation and Further In Vitro' Progesterone-Induced Acrosome Exocytosis are Linked to Specific Changes in the Expression and Acrosome Location of Protein Phosphorylation in Serine Residues of Boar Spermatozoa
'In Vitro' Capacitation and Acrosome Reaction are Concomitant with Specific Changes in Mitochondrial Activity in Boar Sperm: Evidence for a Nucleated Mitochondrial Activation and for the Existence of a Capacitation-Sensitive Subpopulational Structure
Sperm from Hyh Mice Carrying a Point Mutation in alpha SNAP Have a Defect in Acrosome Reaction
The Presence and Function of Dopamine Type 2 Receptors in Boar Sperm: A Possible Role for Dopamine in Viability, Capacitation, and Modulation of Sperm Motility
Dynamics of motile-sperm subpopulation structure in boar ejaculates subjected to in vitro" capacitation and further "in vitro" acrosome reaction"
Marlin-1 is expressed ion testis and associates to the cytoskeleton and GABA(B) receptors
Expression of the GM-CSF receptor in ovine spermatozoa: GM-CSF effect on sperm viability and motility of sperm subpopulations after the freezing-thawing process
Novel identification of peripheral dopaminergic D2 receptor in male germ cells
Hexose-specificity of hexokinase and ADP-dependence of pyruvate kinase play important roles in the control of monosaccharide utilization in freshly diluted boar spermatozoa

Abstract (5)

Inhibiting the activity of mitochondrial ATP synthase with Oligomycin-A suppresses motility and 'in vitro' capacitation achievement of boar spermatozoa but does not affect the sperm energy levels
y The absence of extracellular calcium stimulates sperm motility and inhibits both 'in vitro' capacitation and progesterone-induced acrosome exocytosis without affecting the overall energy management
Presence of a catecholamine-like system in sperm
Immunolocalization of Caveolin-1 and hexose transporters on three steps of the freezing/thawing process of boar spermatozoa
Specific changes in the motile sperm Subpopulation structure are associated with the establishment of 'In vitro' capacitation in boar spermatozoa

BookSection (1)

Long‐Term Storing of Frozen Semen at −196°C does not affect the Post-Thaw Sperm Quality of Bull Semen

Proyecto (9)

Validación de herramientas de detección costo efectivas para el análisis masivo de muestras en un programa de vigilancia activa de COVID-19 para personal de riesgo.
The effects of early postmortem pH on biochemical processes that influence meat quality traits in grass-fed steers under conventional carcass chilling.
Fortalecimiento de la investigación en biología espermática y su desarrollo biotecnológico, con participación en docencia de pregrado y activa vinculación con el Programa de Doctorado de Ciencias Veterinarias
Desarrollo y Validación de un nuevo Kit de Análisis de Capacitación Espermática, Basado en la Detección de Fosfoproteínas (Patrocinante).
Role of AMPK and other enzymes related to glycogen metabolism in the development of the dark, firm, dry (DFD) condition in steer carcasses
Caracterización de los aspectos clínicos, radiográficos y ecográficos de claudicaciones en caballos de tiro en el Sur de Chile.
Efecto del neuroesteroide endógeno androstanediol sobre la motivación y la receptividad de la conducta sexual en el modelo de la rata hembra
Generación de un banco de semen de caballos fina sangre de tiro pesado, a partir del diseño de protocolos de criopreservación para uso en Inseminación Artificial (IA) en el Plan Nacional de Fomento Equino (PNFE).
''Evaluación de la enzima AMPK como diana farmacológica para el control de la criocapacitación de espermatozoides bovinos''.

Review (1)

Neuronal signaling repertoire in the mammalian sperm functionality
39
Alfredo Ramírez

Profesor Asociado

Instituto de Ciencia Animal

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

3
Ilona Concha

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

3
Hedie Bustamante

Académico

Ciencias Clínicas Veterinarias

Universidad Austral de Chile

Valdivia, Chile

3
Pablo Strobel

Prrofesional de laboratorio

Facultad Ciencias Veterinarias

Universidad Austral de Chile

Valdivia, Chile

2
Marianne Werner

Académico

Facultad de Ciencias Veterinarias

Universidad Austral de Chile

Valdivia, Chile

2
Ricardo Hartley

Académico

Universidad Central de Chile

Santiago, Chile

1
Fernando Romero

Profesor JC, asociado

Ciencias Preclínicas

Universidad de La Frontera

Temuco, Chile

1
Rafael Burgos

FULL PROFESSOR

PHARMACOLOGY AND MORPHOPHYSIOLOGY

UNIVERSIDAD AUSTRAL DE CHILE

VALDIVIA, Chile

1
Raul Sanchez

DIRECTOR DE CENTRO DE EXCELENCIA

UNIVERSIDAD DE LA FRONTERA

Temuco, Chile

1
Armin Mella

Docente

Bioquímica y Microbiología

Universidad Austral de Chile

Valdivia, Chile

1
felipe pezo

estudiante de doctorado

Centro de Medicina Traslacional

Universidad de La Frontera

Temuco, Chile

1
María Rauch

ACADEMICO

INSTITUTO DE BIOQUÍMICA Y MICROBIOLOGIA

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

1
Magdalena Cuevas

Profesor Asistente

Departamento de Fisiología

Universidad de Concepción

Concepción, Chile

1
Francisco Morera

Assistant Professor

Pharmacology

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

1
Franz Villarroel

Jefe Laboratorio - PI

Unidades de Diagnóstico

Fundación Arturo López Pérez

Santiago, Chile

1
Ananda Müller

Jefe Sector - Laboratorio de Patología Clínica Veterinaria - Hospital Veterinario

UACh

Valdivia, Chile

1
Fernando Romero

Profesor JC. Asociado

Ciencias Preclinicas

Universidad de La Frontera

Temuco, Chile

1
Fabiola Zambrano

Profesor Invitado

UNIVERSIDAD DE LA FRONTERA

TEMUCO, Chile

1
Jorge Parodi

Director de laboratorio

Universidad Mayor de Chile

Temuco, Chile

1
Nancy Jerez

Asociado (nivel II)

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

1
Marcelo Ratto

Profesor titular

Ciencia Animal

Universidad Austral de Chile

Valdivia, Chile

1
Maite Castro

Professor

Faculty of Sciences

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

1
Luis Federico Batiz

Associate Professor

Center for Biomedical Research and Innovation (CIIB)

Universidad de los Andes

Santiago, Chile

1
PAMELA URIBE

Docente

Centro de Excelencia en Medicina Traslacional

UNIVERSIDAD DE LA FRONTERA

TEMUCO, Chile

1
Alejandro Yanez

Full professor

Faculty of Science

UNIVERSIDAD AUSTRAL DE CHILE

Valdivia, Chile

1
Andrés Couve

Profesor Titular

Neurociencia

FACULTAD DE MEDICINA, UNIVERSIDAD DE CHILE

Santiago, Chile

1
CAROLA OTTH

profesor titular

microbiologia clinica

UNIVERSIDAD AUSTRAL DE CHILE. FACULTAD DE MEDICINA. INSTITUTO DE MICROBIOLOGIA CLINICA

VALDIVIA, Chile

1
Oscar Peralta

Profesor Asociado

Fomento de la Producción Animal

UNIVERSIDAD DE CHILE, FACULTAD DE CIENCIAS VETERINARIAS Y PECUARIAS

Santiago, Chile