&lt;b&gt;Estado oxidativo de neonatos e fêmeas caninas no periparto vaginal eutócico ou cesariana eletiva&lt;/b&gt;

Almeida, Leticia Lima de

doi:10.11606/d.10.2019.tde-28092018-151743

Cited by 2 publications

(5 citation statements)

References 15 publications

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“…Regardless of delivery method, the RR of cats was higher than that of dogs. 12,16,20,29 While an average RR of up to 40 movements per min (mpm) is expected in newborn dogs, 12,30 in newborn cats in this study, averages above 100 mpm were observed. It is possible that cats demonstrate greater maturity of the adaptive breathing reflex, carotid chemoreceptors or lung structures than dogs, or a greater expansion of the chest wall, to compensate for hypoxemia during parturition.…”

Section: Discussionmentioning

confidence: 48%

“…However, further studies are needed to examine cardiorespiratory maturity in newborn cats compared with dogs. In cats, a higher SpO 2 than that in dogs 29,31 was observed in both groups, possibly due to their higher RR and HR.…”

Section: Discussionmentioning

confidence: 78%

“…This lack of difference in HR contrasts with previous studies of dogs, which demonstrated reduced HR in pups delivered by cesarean section vs pups delivered via eutocic birth. 12,16,29 The normal neonatal HR in kittens can be >200 beats per min (bpm). 6 Owing to neonatal immaturity and prominent hypoxemia in dystocia and cesarean sections, it was assumed that CG cats would also have lower HRs.…”

Section: Discussionmentioning

confidence: 99%

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Topics in the routine assessment of newborn kitten vitality: Apgar score, reflexes and complementary assessments

Hibaru

Pereira

Fuchs

et al. 2022

Journal of Feline Medicine and Surgery

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Objectives The aim of this study was to perform neonatal clinical assessments at birth to identify newborn kittens at risk according to type of delivery, thus allowing immediate intervention and increasing their chances of survival. Methods This study compared Apgar scores, reflexes and clinical parameters (temperature, weight, blood glucose and peripheral oxygen saturation [SpO2]) between eutocic neonates and those delivered by emergency cesarean section. The animals were evaluated at birth and after 10 and 60 mins. Results Thirty-two neonates were evaluated, with 19 animals in the eutocic group (EG) and 13 animals in the cesarean group (CG). When comparing groups, CG neonates had significantly lower Apgar scores ( P <0.0001), lower SpO2 ( P = 0.0535), higher blood glucose ( P = 0.0009), reduced reflexes ( P <0.0001) and lower respiratory rates ( P <0.0001) at birth and after 10 and 60 mins than EG neonates. Apgar scores positively correlated with parameters such as heart rate, reflex score, SpO2 and weight. The mortality rate in evaluated newborns was 15.6% (5/32). The early mortality rate (0–2 days old) was 80% (4/5) and the late mortality rate (3–30 days old) was 20% (1/5). Conclusions and relevance This study showed lower vitality in cats delivered by emergency cesarean section than in those delivered through eutocic birth. In general, neonates delivered by cesarean section have greater depression and low vitality at birth and may require advanced resuscitation procedures. The evaluations carried out in this study identified newborns with low vitality and those requiring advanced resuscitation, thus allowing immediate intervention. Apgar and reflex scores for feline neonates were suggested. Newborn-specific clinical assessment with these feline vitality scores allows the identification of at-risk neonates. Care immediately after birth increases the chance of survival among these patients.

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Section: Discussionmentioning

confidence: 48%

Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

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Topics in the routine assessment of newborn kitten vitality: Apgar score, reflexes and complementary assessments

Hibaru

Pereira

Fuchs

et al. 2022

Journal of Feline Medicine and Surgery

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“…A lower concentration of total, direct, and indirect bilirubin were observed in the mules when compared to horses. In horse neonates, a physiological increase in indirect bilirubin during the first week of life has been reported, probably due to a rapid rate of the recurrence of fetal red blood cells [16,23,24]. However, studies have reported an antioxidant role of bilirubin in human serum, protecting cell membranes from lipid peroxidation due to its lipophilic properties [25].…”

Section: Discussionmentioning

confidence: 99%

“…This accelerated adjustment could be attributed to their enhanced resilience and cognitive capabilities, possibly from genetic heterosis [23,26,27]. As a result, mule neonates tend to demonstrate a faster adaptation to their surroundings when compared to their horse counterparts [16,24].…”

Section: Discussionmentioning

confidence: 99%

Comparative Assessment of Oxidative and Antioxidant Parameters in Mule and Horse Neonates during Their First Month of Extrauterine Adaptation

Riccio,

Costa,

Alonso

et al. 2023

Animals

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After parturition, a rapid transition occurs from the intrauterine to the extrauterine milieu, exposing neonates to physiological circumstances characterized by oxidative conditions that instigate the generation of reactive oxygen species. These free radicals play pivotal roles in physiological processes; however, an imbalance between their production and the removal of antioxidants can result in severe cellular damage. The main objective of this study was to compare the oxidative and antioxidant profiles in mule and horse neonates immediately post-parturition, as well as at subsequent time points (1, 6, 12, and 24 h, 7 and 30 days) during their extrauterine existence. The parameters assessed included the systemic concentrations of Thiobarbituric Acid Reactive Substances (TBARS) and carbonyl groups; the activities of the antioxidants superoxide dismutase (SOD) and glutathione peroxidase (GPx); and the levels of the total, indirect, and direct bilirubin. Our results showed no interaction effect between the neonatal groups and the assessed time points for the variables under investigation. Notably, the concentrations of TBARS, as a marker of lipid peroxidation, and bilirubin were consistently lower in the mules, whereas the glutathione peroxidase (GPx) activity exhibited higher levels in this group. The bilirubin levels were notably reduced in the mule neonates. The TBARS demonstrated a progressive decrease over the observation period in both groups, while the GPx activity remained relatively stable from birth to 7 days, with a substantial increase evident at the 30-day mark. Protein oxidation was not affected by the group and time, while for the SOD values, all times were statistically similar, except for the lower activity at T1h. Consequently, our findings lead us to the conclusion that neonatal mules and horses manifest distinct patterns of oxidative activity and antioxidant capacity during the initial month of their extrauterine existence, potentially indicative of different adaptation mechanisms to the extrauterine environment.

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<b>Estado oxidativo de neonatos e fêmeas caninas no periparto vaginal eutócico ou cesariana eletiva</b>

Cited by 2 publications

References 15 publications

Topics in the routine assessment of newborn kitten vitality: Apgar score, reflexes and complementary assessments

Topics in the routine assessment of newborn kitten vitality: Apgar score, reflexes and complementary assessments

Comparative Assessment of Oxidative and Antioxidant Parameters in Mule and Horse Neonates during Their First Month of Extrauterine Adaptation

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