Effect of Perinatal Food Deficiencies on the Compound Action Potential Evoked in Sensory Nerves of Developing Rats

Segura, Bertha; Guadarrama, José Carlos; Gutiérrez, Ariadne; Merchant, Hugo; Cintra, L.; Jiménez, Ismael

doi:10.1080/1028415x.2001.11747383

Cited by 19 publications

(17 citation statements)

References 29 publications

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“…According to our data, the body and muscle weights of chronically undernourished animals were significantly lower than those of control animals. Similar results have been reported in other studies (Rowe 1968;Beverly et al 1991;Segura et al 2001), in which a close relationship between low food intake and reduced ) technique (n=5 per age and feeding condition). See the Materials and Methods section for further details.…”

Section: Discussionsupporting

confidence: 80%

“…The control group (C), consisting of female rats (n=9) and their offspring, had free access to commercial food (Formulab 5008 [Lab Diet, Brentwood, MO]; composition: crude protein not less than 23%, crude fat not less than 6.5%, crude fiber not more than 4%, ash not more than 8%, added minerals not more than 2.5%) throughout the entire experimental period, and the amount of food consumed was measured every day until the day of the experiment (Table 1). The chronically undernourished group (U) consisted of the remaining female rats (n=10), which received 50% of the food intake of control animals determined before from 3 to 4 weeks before mating through pregnancy and lactation (Chow and Lee 1964;Bedi 1994;Segura et al 2001). The offspring were also undernourished after weaning (postnatal day 21) until their age at the experimental session (Table 1).…”

Section: Materials and Methods Animalsmentioning

confidence: 99%

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Histoenzymatic and Morphometric Analysis of Muscle Fiber Type Transformation during the Postnatal Development of the Chronically Food-Deprived Rat

Ruíz-Rosado

Fernández-Valverde

Mariscal-Tovar

et al. 2013

J Histochem Cytochem.

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SummaryWe analyze the effect of chronic undernourishment on extensor digitorum longus (EDL) muscle maturation in the rat. Cytochrome c oxidase (COX) and alkaline ATPase histoenzymatic techniques were used to determine the relative proportion of different fiber types (oxidative/glycolytic and type I, IIa/IId, or IIb, respectively) and their cross-sectional area in control and undernourished EDL muscles at several postnatal (PN) ages. From PN days 15 to 45, undernourished EDL muscles showed predominance of oxidative and type IIa/IId fibers, but from PN days 60 to 90, there were a larger proportion of oxidative fibers and an equal proportion of type IIa/IId and IIb fibers. Meanwhile, in adult stages (from PN days 130-365), the relative proportion of fiber types in control and undernourished EDL muscles showed no significant differences. In addition, from PN days 15 to 90, there was a significant reduction in the cross-sectional area of all fibers (slow: 13-53%; intermediate: 24-74%; fast: 9-80%) but no differences from PN days 130 to 365. It is suggested that chronic undernourishment affects the maturation of fast-type muscle fibers only at juvenile stages (from PN days 15-45) and the probable occurrence of adaptive mechanisms in muscle fibers, allowing adult rats to counterbalance the alterations provoked by chronic food deprivation. (J Histochem Cytochem 61:372-381, 2013)

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Section: Discussionsupporting

confidence: 80%

Section: Materials and Methods Animalsmentioning

confidence: 99%

Histoenzymatic and Morphometric Analysis of Muscle Fiber Type Transformation during the Postnatal Development of the Chronically Food-Deprived Rat

Ruíz-Rosado

Fernández-Valverde

Mariscal-Tovar

et al. 2013

J Histochem Cytochem.

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“…Our results coincide with a large body of work showing that early negative (complete maternal deprivation, early weaning or undernourishment), or positive (tactile and social stimulation) experiences modify myelination and the electrophysiological function of the CNS (Chatterjee et al, ; Kikusui et al, ; Ono et al, ; Horiquini‐Barbosa and Lachat, ; Antoniazzi et al, ) and the PNS (Segura et al, ; Segura et al, ; Quiroz‐González et al, ). Moreover, our results allow us to propose a discrete window of developmental time (PNDs 7–14), during which tactile stimulation normally exerts positive effects on myelination (Kikusui et al, ; Ono et al, ).…”

Section: Discussionsupporting

confidence: 88%

Early postnatal development of electrophysiological and histological properties of sensory sural nerves in male rats that were maternally deprived and artificially reared: Role of tactile stimulation

Zempoalteca

Porras²,

Moreno-Pérez

et al. 2017

Developmental Neurobiology

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Early adverse experiences disrupt brain development and behavior, but little is known about how such experiences impact on the development of the peripheral nervous system. Recently, we found alterations in the electrophysiological and histological characteristics of the sensory sural (SU) nerve in maternally deprived, artificially reared (AR) adult male rats, as compared with maternally reared (MR) control rats. In the present study, our aim was to characterize the ontogeny of these alterations. Thus, male pups of four postnatal days (PND) were (1) AR group, (2) AR and received daily tactile stimulation to the body and anogenital region (AR-Tactile group); or (3) reared by their mother (MR group). At PND 7, 14, or 21, electrophysiological properties and histological characteristics of the SU nerves were assessed. At PND 7, the electrophysiological properties and most histological parameters of the SU nerve did not differ among MR, AR, and AR-Tactile groups. By contrast, at PND 14 and/or 21, the SU nerve of AR rats showed a lower CAP amplitude and area, and a significant reduction in myelin area and myelin thickness, which were accompanied by a reduction in axon area (day 21 only) compared to the nerves of MR rats. Tactile stimulation (AR-Tactile group) partially prevented most of these alterations. These results suggest that sensory cues from the mother and/or littermates during the first 7-14 PND are relevant for the proper development and function of the adult SU nerve. © 2017 Wiley Periodicals, Inc. Develop Neurobiol 78: 351-362, 2018.

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“…The electrophysiological procedures for stimulation and recording of the compound action potential (CAP) in peripheral nerves were performed as described elsewhere [20]. Segments of the sural nerve were placed on a recording chamber filled with saline Krebs solution (NaCl 128 mM, KCl 3 mM, NaH 2 PO 4 0.5 mM, MgSO 4 1 mM, NaHCO 3 21 mM, glucose 30 mM) at 37°C.…”

Section: Electrophysiologymentioning

confidence: 99%

Functional and morphological effects of repeated sodium arsenite exposure on rat peripheral sensory nerves

García-Chávez

Segura²,

Merchant³

et al. 2007

Journal of the Neurological Sciences

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Effect of Perinatal Food Deficiencies on the Compound Action Potential Evoked in Sensory Nerves of Developing Rats

Cited by 19 publications

References 29 publications

Histoenzymatic and Morphometric Analysis of Muscle Fiber Type Transformation during the Postnatal Development of the Chronically Food-Deprived Rat

Histoenzymatic and Morphometric Analysis of Muscle Fiber Type Transformation during the Postnatal Development of the Chronically Food-Deprived Rat

Early postnatal development of electrophysiological and histological properties of sensory sural nerves in male rats that were maternally deprived and artificially reared: Role of tactile stimulation

Functional and morphological effects of repeated sodium arsenite exposure on rat peripheral sensory nerves

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