Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1433-7339
    Keywords: Key words Granisetron ; Antiemetic therapy ; Cancer chemotherapy ; Cisplatin ; Emesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The purpose of this study was to evaluate the efficacy and safety of four different doses of granisetron when administered as a single intravenous (i.v.) dose for prophylaxis of cisplatin-induced emesis in a multicenter, randomized, parallel-group, double-blind investigation. A total of 353 chemotherapy-naive patients were enrolled, stratified according to cisplatin dose (moderate dose: 50–80 mg/m2, n=169; high dose: 81–120 mg/m2, n=184) and randomized to one of four granisetron doses: 5, 10, 20, or 40 μg/kg. Control of emesis was evaluated by the percentages of patients attaining complete response (no vomiting or retching, and no rescue medication) and major response (≤2 episodes of vomiting or retching, and no rescue medication). Patients were assessed on an inpatient basis for 18–24 h. Safety analyses consisted of adverse events and laboratory parameter changes. Complete response rates over 24 h after chemotherapy were 23%, 48%, 48%, and 44% for granisetron doses of 5, 10, 20, and 40 μg/kg, respectively, in the combined patient population (P=0.011 for linear trend); 29%, 56%, 58%, and 41%, respectively, in the moderate-dose cisplatin stratum (P=0.278 for linear trend); and 18%, 41%, 40%, and 47%, respectively, in the high-dose cisplatin stratum (P=0.011 for linear trend). Transient headache was the most frequently reported adverse event (19%). There was no evidence of association between increased dose and headache. A single 10-, 20- or 40-μg/kg dose of granisetron is comparably effective in controlling nausea and vomiting associated with moderate- or high-dose cisplatin chemotherapy. Granisetron was safe and well tolerated at all doses.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1433-7339
    Keywords: Granisetron ; Antiemetic therapy ; Cancer chemotherapy ; Cisplatin ; Emesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of this study was to evaluate the efficacy and safety of four different doses of granisetron when administered as a single intravenous (i.v.) dose for prophylaxis of cisplatin-induced emesis in a multicenter, randomized, parallel-group, double-blind investigation. A total of 353 chemotherapy-naive patients were enrolled, stratified according to cisplatin dose (moderate dose: 50–80 mg/m2,n = 169; high dose: 81–120 mg/m2,n = 184) and randomized to one of four granisetron doses: 5, 10, 20, or 40 µ/kg. Control of emesis was evaluated by the percentages of patients attainingcomplete response (no vomiting or retching, and no rescue medication) andmajor response (≤2 episodes of vomiting or retching, and no rescue medication). Patients were assessed on an inpatient basis for 18–24 h. Safety analyses consisted of adverse events and laboratory parameter changes. Complete response rates over 24 h after chemotherapy were 23%, 48%, 48%, and 44% for granisetron doses of 5, 10, 20, and 40 µg/kg, respectively, in the combined patient population (P=0.011 for linear trend); 29%, 56%, 58%, and 41%, respectively, in the moderate-dose cisplatin stratum (P=0.278 for linear trend); and 18%, 41%, 40%, and 47%, respectively, in the high-dose cisplatin stratum (P = 0.011 for linear trend). Transient headache was the most frequently reported adverse event (19%). There was no evidence of association between increased dose and headache. A single 10-, 20- or 40-µg/kg dose of granisetron is comparably effective in controlling nausea and vomiting associated with moderateor high-dose cisplatin chemotherapy. Granisetron was safe and well tolerated at all doses.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-0878
    Keywords: Aesthetasc ; Adenosine triphosphate ; Cerium phosphate ; Cytochemistry ; Ectonucleotidase (Crustacea) ; Olfactory system ; Phosphatase ; Panulirus argus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Electrophysiological studies have shown that the olfactory organ (antennule) of the spiny lobster, Panulirus argus, has chemoreceptors that are selectively excited by adenine nucleotides in seawater. Biochemical studies have revealed that these same nucleotides can be rapidly dephosphorylated by ectoenzymes associated with the olfactory sensilla (aesthetascs). In this study the distribution of ecto-ATPase/phosphatase activity within aesthetascs was determined cytochemically and the nature of the adenine-nucleotide dephosphorylating activity was dissected biochemically. Cytochemically, the distribution of ATP-dephosphorylating activity was similar to that shown previously for AMP and β-glycerol phosphate; i.e., cerium phosphate reaction product was specifically localized to the transitional zone where the sensory dendrites develop cilia and branch to form the outer dendritic segments. Unlike the dephosphorylation of AMP and β-glycerol phosphate, Mg2+ or Ca2+ was required for ecto-ATPase/phosphatase activity. Biochemical measures of both AMP-and ATP-dephosphorylating activity within aesthetascs corroborated the cytochemical evidence that these activities are localized to the transitional zone. A major portion of the AMP dephosphorylation (about 67%) derives from nonspecific alkaline phosphatase activity that is insensitive to levamisole and L-bromotetramisole. In contrast, nonspecific phosphatase activity accounted for a much smaller part of the ATP dephosphorylation (about 15%). Ectoenzymatic activity in the transitional zone may be an important means of removing excitatory/inhibitory nucleotides from this region.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1432-0878
    Keywords: Aesthetasc ; Adenosine monophosphate ; Cerium phosphate ; Cytochemistry ; Ectonucleotidase ; Olfactory system ; Phosphatase ; Panulirus argus (Crustacea)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Previous electrophysiological studies have shown that the olfactory organ (antennule) of the spiny lobster, Panulirus argus, has external chemoreceptors, which are selectively stimulated by adenosine 5′-monophosphate (AMP) when present in seawater. Subsequent biochemical investigations revealed that AMP can be rapidly dephosphorylated by 5′-ectonucleotidase/phosphatase activity associated with the olfactory sensilla (aesthetascs). In this study the deposition of cerium phosphate was used to examine the ultrastructural distribution of 5′-ectonucleotidase/phosphatase activity in aesthetascs. Utilizing AMP as substrate, we found dephosphorylating activity to be associated with the outer membranes of both dendrites and auxiliary cells. Moreover, this activity was specifically localized to a narrow band that approximately corresponds to the transitional zone where dendrites develop cilia and branch extensively to form the outer dendritic segments. A similar distribution of the cerium phosphate reaction product was found when β-glycerol phosphate was substituted for AMP. The alkaline-phosphatase inhibitor, levamisole, had no apparent effect on the deposition of reaction product when either AMP or β-glycerol phosphate was used as substrate. The ectoenzymatic activity in the transitional zone may be of importance in clearing exogenous chemoexcitatory nucleotides from this region.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...