A5018556840- Reproductive Physiology in Livestock
- Reproductive Biology and Fertility
- Genetic and phenotypic traits in livestock
- Reproductive System and Pregnancy
- Effects of Environmental Stressors on Livestock
- Ruminant Nutrition and Digestive Physiology
- Ovarian function and disorders
- Animal Behavior and Welfare Studies
- Growth Hormone and Insulin-like Growth Factors
- Sperm and Testicular Function
- Vector-Borne Animal Diseases
- Animal health and immunology
- Renal and related cancers
- Paraoxonase enzyme and polymorphisms
- Endometriosis Research and Treatment
- Vector-borne infectious diseases
- Cynara cardunculus studies
- Cytokine Signaling Pathways and Interactions
- Aquaculture Nutrition and Growth
- Renin-Angiotensin System Studies
- Reproductive biology and impacts on aquatic species
- Peroxisome Proliferator-Activated Receptors
- Adipose Tissue and Metabolism
- DNA Repair Mechanisms
- Animal Genetics and Reproduction
Universidade Federal do Rio Grande do Sul
2020-2025
Universidade Federal de Santa Maria
2008-2023
Universidade Federal de Pelotas
2017-2023
University of Rio Grande and Rio Grande Community College
2023
Brazilian Buiatrics Association
2022
Instituto Federal Farroupilha
2018-2019
Universidade Federal do Rio Grande
2017-2018
McGill University
2014-2017
Ginger [Zingiber officinale Roscoe (Zingiberaceae)] and turmeric [Curcuma longa Linn rhizomes have been reportedly used in folk medicine for the treatment of hypertension. However, prevention its complication such as male infertility remains unexplored. Hence, aim present study was to investigate preventive effects ginger on some biomarkers reproductive function L-NAME-induced hypertensive rats. Male Wistar rats were divided into seven groups (n = 10): normotensive control rats; induced...
ABSTRACT The study aimed to evaluate the effects of GnRH given 34 h after progesterone (P4) intravaginal device (IVD) removal in a timed artificial insemination (TAI) protocol. In Experiment 1, 17 Hereford and Braford heifers (control, n = 7; GnRH34; 10) received 2 mg estradiol benzoate (EB) 1 g P4 IVD on Day 0 (D0). On D8, IVDs were removed 150 μg d‐cloprostenol (PGF) cypionate (EC) administered. GnRH34 group, animals 25 lecirelin (D9). TAI was performed both groups D10 (48 removal)....
It is generally understood that angiotensin II (AngII) promotes follicle atresia in rats, although recent data suggested this may not be true cattle. In study, we aimed to determine vivo whether AngII alters development cattle, using intrafollicular injection of or antagonist into the growing dominant second largest subordinate follicle. Injection saralasin, an antagonist, inhibited follicular growth, and inhibitory effect was overcome by systemic FSH supplementation. did affect whereas...
Fibroblast growth factors (FGFs) are involved in paracrine control of follicle development. It was previously demonstrated that FGF10 decreases estradiol (E 2 ) secretion granulosa cell culture and theca mRNA expression is decreased healthy follicles from abattoir ovaries. The main objectives this study were to evaluate FGFR2b during follicular development vivo , the effect on using Bos taurus cows as a model, gain more insight into mechanisms through which inhibits steroidogenesis....
Angiotensin II (AngII) has a role in ovarian follicle development, ovulation, and oocyte meiotic resumption. The objective of the present study was to characterise AngII profile mRNA encoding RAS proteins bovine follicular wave. Cows were ovariectomised when size between largest (F1) second (F2) not statistically different (day 2), slightly 3), or markedly 4). measured fluid abundance genes angiotensin-converting enzyme (ACE), (pro)renin receptor, renin-binding protein (RnBP) evaluated cells...
Introduction: This study was based on the hypothesis that some components of angiotensin-(1-7) (Ang-(1-7)) system are differentially expressed during follicular development and can be involved in health/atresia transition bovine. Material methods: The largest (F1) second follicles (F2) were collected from cows before (Day 2), 3), or after 4) expected moment deviation. In experiment, F1 induced to atresia through intrafollicular injection fulvestrant (estrogen receptor-antagonist) and, both...
Castration of male calves is necessary for trading to facilitate handling and prevent reproduction. However, some methods castration are traumatic lead economic losses because infection myiasis. The objective the present study was evaluate efficiency intratesticular injection (ITI) hypertonic sodium chloride (NaCl; 20%) solution in calf during first weeks life. Forty were allocated one following experimental groups: negative control—surgically castrated immediately after birth; positive...
Subordinate follicles (SFs) of bovine follicular waves undergo atresia due to declining FSH concentrations; however, the signalling mechanisms have not been fully deciphered. We used an FSH-induced co-dominance model determine effect on pathways in granulosa cells second-largest (SF control cows and co-dominant follicle (co-DF2) FSH-treated cows). The SF was smaller than DF while diameters co-DF1 co-DF2 were similar. presence cleaved CASP3 protein confirmed that SFs, but DFs co-DFs,...
The effects of dietary supplementation graded level (0, 0.25, 0.5, 1.0, and 2.0 ml/kg diet) Citrus aurantium essential oil (EOCA) on the growth, metabolic, oxidative parameters silver catfish (Rhamdia quelen) were investigated in a 60-day growth trial. Fish fed with ml EOCA per kg exhibited significantly better performance than those control diet. Glucose, lactate, protein levels liver muscle altered by addition EOCA. Hepatic lipid peroxidation levels, measured using thiobarbituric acid...
Estradiol (E2) receptors mediate E2 effects on cell proliferation and apoptosis under normal pathological conditions. However, the mechanisms involved in signaling are not completely understood. The objectives this study were to evaluate expression of estrogen (ESRs) during follicular selection cattle, effect intrafollicular injection fulvestrant (an antagonist ESRs) development transcript abundance granulosa cells. Granulosa cells obtained from two largest follicles around deviation, after...
Ovulation is triggered by gonadotropin surge-induced signaling cascades. To study the role of extracellular signal-regulated kinase 1/2 (ERK1/2) in bovine ovulation, we administered pharmacological inhibitor, PD0325901, into preovulatory dominant follicle intrafollicular injection. Four five cows treated with 50 µM PD0325901 failed to ovulate. uncover molecular basis anovulation ERK1/2-inhibited cows, collected granulosa and theca cells from Vehicle follicles. Next-generation sequencing cell...
Prostaglandin F2α (PGF) induces the precipitous loss of steroidogenic capabilities and cellular death in corpus luteum many species, yet molecular mechanisms underlying this event are not completely understood. Signal transducer activator transcription 3 (STAT3) was activated granulosa cells during follicle atresia, whereas AKT is immediately down-regulated after PGF treatment cattle; however, their involvement both functional morphological luteolysis monovular species still need to be...
ABSTRACT: Pregnancy diagnosis is an important tool for farm management. Ultrasonography the main technique used pregnancy in ewes. As alternative, radioimmunoassay (RIA) allows accurate and early detection of pregnancy-associated glycoproteins (PAGs) sheep blood. However, radioactive-based techniques, as RIA, have been increasingly inadvisable due to environmental risk. Homology between ovine bovine PAGs high, ELISA kits cattle are safer than RIA. Thus, this study aimed evaluate feasibility...
Prostaglandin E2 (dinoprostone) is largely used for labor induction. However, one-third of patients do not respond to treatment. One cause this poor response may be associated with changes in regulation prostaglandin E receptors (EP1-4). In study, we investigated EP mRNA expression the uterine cervix and lower segment myometrium term births. Biopsies were obtained from women successful (responders) failed (non-responders) dinoprostone induction, while that underwent spontaneous included as...