Publications by authors named "Maria L Boccia"

Partners play an important role in both the general well-being and the care needs of patients. The dynamic between brain tumor treatment and patients' families is a complex bidirectional relationship. Cancer diagnosis and treatments which leave patients compromised impact the nature and quality of their relationships, and these in turn impact the ability of their partners to care for them.

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Article Synopsis
  • Despite females constituting nearly 60% of brain and spinal cord tumor cases in adults, there is a lack of targeted guidelines in neuro-oncology addressing women's specific health issues.
  • The review emphasizes common concerns among female patients, such as fertility and the effects of cancer treatments on pregnancy, noting the limited evidence available to neuro-oncology providers.
  • Additionally, the article highlights the need for more research on hormone exposure and the effects of tumors and treatments on female sexuality to improve care for women in neuro-oncology.
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Background: As tumor treatment has advanced, patients are surviving and returning to productive lives. Quality of life (QoL) has become a significant consideration in the care of survivors. The 2005 Institute of Medicine Cancer Survivorship Care Planning requires the inclusion of information on the possible effects of cancer on marital/partner relationship and sexual functioning, among other factors related to QoL.

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Oxytocin has been shown to be important for social behavior and emotional attachments in early life and may also mediate effects of early experiences on social motivation in adulthood. In animal models, early maternal separation results in alterations in the oxytocin system, with effects on sexual, maternal, and stress reactivity behaviors in adulthood. Studies of children experiencing parental divorce find effects on mood disorders, substance abuse, and other behaviors in adulthood.

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The amount of maternal licking received by newborn rats affects their adult stress reactivity and maternal behavior. Mouse studies in which litters were cross-fostered between strains that exhibit high vs. low amounts of maternal behavior also suggest that rearing conditions affect adult outcomes.

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In the present simulation research, the authors examined the relations between the type of information that low-income parents (N = 116) recalled from informed-consent materials and their hypothetical decision to enroll a child in a clinical study. The authors gave parents or guardians of Head Start children information about a medical protocol involving high risk and significant potential benefit to child participants. Differential recall of the various categories of information (procedures, benefits, risks and costs, rights, and other) showed that relative to all consent information conveyed to them, participants recalled most about procedures and least about their child's rights as a study participant.

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Central administration of oxytocin (OT) antagonists inhibits maternal and sexual behavior in non-primates, providing the strongest experimental evidence that endogenous OT facilitates these behaviors. While there have been a few reports that ICV administration of OT increases social behaviors in monkeys, no studies to date have assessed the effects of OT antagonists. Therefore, we studied in rhesus monkeys whether L368,899, a non-peptide antagonist produced by Merck that selectively blocks the human uterine OT receptor, penetrates the CNS after peripheral administration and alters female maternal and sexual behavior.

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Long maternal (LMS) versus brief maternal (BMS) daily separations of rat pups from their mothers have contrasting effects on their adult stress responses and maternal behavior by, respectively, decreasing and increasing licking received from their mothers. We hypothesized that LMS decreases pup-licking in mothers by inducing learned helplessness, creating a depression-like state. We subjected postpartum rats to LMS (3 h), BMS (15 min) or no separation (NMS) on postpartum days 2-14.

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Physiological hyperarousal, an elevated state of physiological arousal and poor modulation, has been postulated to be a significant source of behavior problems in children with fragile X syndrome (FXS). Temperament has been associated with behavior problems and may also reflect biological reactivity. Young boys with FXS display poorly modulated and low levels of vagal tone (Roberts, Dev Psychobiol 2001;39:107-123) and high activity, poor attention, low adaptability, poor persistence, and low intensity when compared with a reference sample of typically developing (Hatton, Dev Med Child Neurol 1991;41:625-632).

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A randomized trial comparing the amount of knowledge orally recalled from four different presentations of the same consent information was conducted in a non-clinic sample of 233 low-income parents who displayed a range of reading comprehension skill. The study simulated recruitment of children into one of two actual studies underway at another location: one involved high risk to participants, the other did not. Use of a non-clinic sample controlled for prior knowledge of the conditions, and avoiding discussion of the information further assured that differences in recalled information could be attributed more confidently to the format itself.

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Studies involving intracerebral administration of antiserum or antagonists have demonstrated that central oxytocin (OT) plays a prominent role in initiating but not maintaining postpartum maternal behavior in rats. There has been little investigation, however, of OT's influence on the levels of maternal behavior exhibited during the maintenance phase. We measured rat dam behavior during the 105-min observation periods preceding and beginning 2 h after intracerebroventricular infusion of the selective OT antagonist (OTA) (1 microg), or normal saline (NS) vehicle (5 microl) on postpartum days 2-3 and 6-7.

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We review recent discoveries that implicate oxytocin in the intergenerational transmission of similar levels of maternal behavior and acute stress responses in female rats. First, ICV-infused oxytocin antagonist decreased the display by nursing dams of pup-licking (PL) and arched-back nursing (ABN), but not other components of maternal behavior, and increased maternal self-grooming suggesting that oxytocin may shift the balance of oral grooming by dams away from themselves and toward pups. Second, oxytocin receptor concentrations in areas of the adult brain where oxytocin stimulates maternal behavior or diminishes anxiety and adrenal axis responses to acute stress were positively related to PL-ABN received during infancy.

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In previous studies, central administration of the oxytocin (OT) antagonist d(CH2)5[Tyr(Me)2, Thr4, Tyr-NH(9)2]OVT (OTA1) blocked receptive and proceptive components of female sexual behavior (FSB) and increased male-directed agonistic behavior when given before progesterone (P) treatment in estradiol-primed female rats but not when given shortly before behavioral testing 4-6 h after P. Because the considerable V(1a) antagonist potency of OTA1 may have contributed to these results, we tested the effects of the far more selective OT antagonist desGly-NH2, d(CH2)5[d-Tyr2, Thr4]OVT (OTA2). In ovariectomized, estradiol benzoate-primed (1 microg x 2 days sc) rats, icv infusion of OTA2 (1 microg) prior to P injection (250 microg sc) significantly suppressed lordosis and hops and darts and trended toward significantly increasing male-directed kicks during testing at 4 and 6 h.

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Many studies would appear to support an important relationship between behavior and the regulation of the immune response, at the core of the developing field of psychoneuroimmunology (PNI). However, wide variations are noted in the strength of this relationship, even for the same species under very similar circumstances. The present paper reviews work from our laboratory in both young and adult pigtail and bonnet macaques describing the ranges of variability in both behavioral and immunological responses to social separation and social conflict.

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Resource availability or distribution may affect interindividual competition in species such as primates, which forage in social groups, and several field studies suggest that dominance status predicts access to restricted food sources. Increased competition due to restricted resources may result in the intensification of aggressive behaviors. The study reported here examines the impact of manipulation of the distribution of food resources in a laboratory-housed group of bonnet macaques to assess the impact of distribution on aggressive behaviors.

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Previous studies of affect perception in nonhuman primates have involved young animals and/or manipulations of early experience. Based upon data suggesting that middle-ranked monkeys in small social groups show patterns of behavior different from their low- or high-ranked counterparts, the current study examined the role of social rank in affect perception by normally reared, adult female pigtailed macaques. Employing color videotapes as the presentation medium, we observed animals as they watched unfamiliar animals display social (aggressive or submissive) or nonsocial behavior.

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An interval scale of behavior would be useful in the study of social relations because it would allow the whole behavioral repertory to be used simultaneously and would allow greater flexibility in statistical manipulation. Maxim has developed such a scale using isolated dyads of unfamiliar monkeys. The typical social environment of monkeys, however, consists of familiar monkeys in mixed age and sex groups.

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