scholarly journals Effect of Melatonin and in Combination with CIDR on Reproductive Performance in anestrus lactating Iraqi buffaloes (Bubalus bubalis).

2020 ◽  
Vol 44 (2) ◽  
pp. 99-102
Author(s):  
Al-Hamedawi, T. M.

The present study was performed on 30 lactating Iraqi buffaloes suffered from ovarian inactivity diagnosed by rectal palpation during 60-90 days postpartum, aged between 3-6 years at Al-Thahab Al-Abiad village / Abu-Graib / Baghdad province during the period from February- June 2020 . The animals divided into three equal groups (10 buffaloes for each one). 1st group treated with melatonin implants (90mg/animals/SC) for 30 days but 2nd group treated with melatonin implants conjugated with CIDR (1.38 gm) in day 20 for 10 days, 3rd group without treatment (control group). The results in this study were recorded animal response 90%, 100% and 50% in 1st ,2nd and 3rd groups respectively with superior significantly (P<0.01) for treated groups compared with control group and 8.26±1.33, 7.15±0.97 and 160.5±14.31 days which represented the duration of response in 1st ,2nd and 3rd groups respectively with significantly differences (P<0.01) related with control, but the number of services per conception recorded insignificantly in all groups, while the pregnancy rate revealed significant differences (P<0.01) in treated group compared with control group. Finally the days open recorded 153.6±6.72, 142.8±7.45 and 217.3±19.56 in 1st, 2nd and 3rd groups respectively with highly significantly (P<0.01) in treated group compared with control group. In conclusion in present study, the role of melatonin in improvement of reproductive performance in anestrus lactating Iraqi buffaloes suffered from ovarian inactivity was safe and effective

2014 ◽  
Vol 306 (2) ◽  
pp. H286-H290 ◽  
Author(s):  
Calvin K. Chan ◽  
Song Yan Liao ◽  
Yue Lin Zhang ◽  
Aimin Xu ◽  
Hung Fat Tse ◽  
...  

In the porcine coronary artery, regenerated endothelium is dysfunctional as regards the responses to endothelium-dependent agonists. The current study aimed to determine the possible involvement of histamine in such dysfunction. Pigs were treated chronically with pyrilamine (H1 receptor inhibitor, 2 mg·kg−1·day−1) with part of their coronary endothelium and allowed to regenerate for 28 days after balloon denudation. The results showed a reduction in relaxation to bradykinin (Gq protein dependent) only in the pyrilamine-treated group (area under the curve, 269.7 ± 13.4 vs. 142.0 ± 31.0, native endothelium vs. regenerated endothelium) but not in the control group (253.0 ± 22.1 vs. 231.9 ± 29.5, native endothelium vs. regenerated endothelium). The differences in the relaxation to serotonin (Gi protein dependent) between native and regenerated endothelium were not affected by the pyrilamine treatment (control group, 106.3 ± 17.0 vs. 55.61 ± 12.7; and pyrilamine group, 106.0 ± 8.20 vs. 49.30 ± 6.31, native endothelium vs. regenerated endothelium). These findings indicate that during regeneration of the endothelium, the activation of H1 receptors by endogenous histamine may be required to maintain the endothelium-dependent Gq protein-mediated relaxation to bradykinin, suggesting a beneficial role of the monoamine in the process of endothelial regeneration.


2014 ◽  
Vol 31 (2) ◽  
pp. 85-96 ◽  
Author(s):  
Andrew J. Martin ◽  
Tracy L. Durksen ◽  
Derek Williamson ◽  
Julia Kiss ◽  
Paul Ginns

To build on prior correlational research into personal best (PB) goals and motivational outcomes, an experimental study was conducted to assess the role of PB goal setting in gains (or declines) in students’ motivation in science (viz. biology, anatomy, health). The study (comprising N = 71 elementary/primary and secondary school students) applied a pre/post-treatment/control group experimental design to test whether setting a PB learning goal in a self-paced science education program (conducted in a museum context) leads to growth in science valuing and science aspirations. The treatment group (PB goal setting), but not the control group, demonstrated significant growth in science aspirations (but not valuing) between pre- and post-testing. This study provides support for the proposition that PB learning goals are associated with motivational growth in students’ lives. Findings also hold implications for museum-based education programs for students.


1979 ◽  
Vol 44 (3) ◽  
pp. 791-797 ◽  
Author(s):  
Edmund J. Freedberg ◽  
William E. Johnston

Self-ratings of behavioral and attitude change by a group of 433 employed alcoholics who had experienced an intensive 3-wk. residential treatment program were compared with self-ratings from a 55-subject delayed-treatment control group. The treated group showed significant improvement on the 7 dimensions measured: employment (job satisfaction), under-assertion, over-assertion, communication, interpersonal relations, depression, and relaxation. The delayed-treatment control subjects showed a decrement on the employment subscale, and no change on the other 6 subscales. When the controls did enter treatment, they showed improvement on all seven dimensions, and the improvement was significant on under-assertion, depression, and relaxation.


1980 ◽  
Vol 47 (2) ◽  
pp. 567-574 ◽  
Author(s):  
Allan Markle ◽  
Roger C. Rinn ◽  
Brenda Goodwin

In an attempt to help underachieving students improve academic performance, an Achievement Motivation Training program was developed. Although similar to other programs focusing on achievement motivation, substantial differences exist, particularly since the present program is presented in an outpatient format rather than integrated into the classroom. 54 students (Grades 3 to 11), referred by their counselors, were subjects; half of these completed our Achievement Motivation Training program, the other half served as a no-treatment control group. The treated group showed a significant improvement in grades from before training to follow-up as well as significantly greater improvement than the control group. Also, a new methodology was offered and tested, demonstrating that a no-treatment group may not be necessary when grades are the primary dependent variable.


2006 ◽  
Vol 76 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Yukari Egashira ◽  
Shin Nagaki ◽  
Hiroo Sanada

We investigated the change of tryptophan-niacin metabolism in rats with puromycin aminonucleoside PAN-induced nephrosis, the mechanisms responsible for their change of urinary excretion of nicotinamide and its metabolites, and the role of the kidney in tryptophan-niacin conversion. PAN-treated rats were intraperitoneally injected once with a 1.0% (w/v) solution of PAN at a dose of 100 mg/kg body weight. The collection of 24-hour urine was conducted 8 days after PAN injection. Daily urinary excretion of nicotinamide and its metabolites, liver and blood NAD, and key enzyme activities of tryptophan-niacin metabolism were determined. In PAN-treated rats, the sum of urinary excretion of nicotinamide and its metabolites was significantly lower compared with controls. The kidneyα-amino-β-carboxymuconate-ε-semialdehyde decarboxylase (ACMSD) activity in the PAN-treated group was significantly decreased by 50%, compared with the control group. Although kidney ACMSD activity was reduced, the conversion of tryptophan to niacin tended to be lower in the PAN-treated rats. A decrease in urinary excretion of niacin and the conversion of tryptophan to niacin in nephrotic rats may contribute to a low level of blood tryptophan. The role of kidney ACMSD activity may be minimal concerning tryptophan-niacin conversion under this experimental condition.


Author(s):  
Hanaa H. Ahmed ◽  
Fatehya M Metwally ◽  
Hend Rashad ◽  
Asmaa M Zaazaa

<p>ABSTRACT<br />Objective: The goal of the present study was to examine the viability of Morus alba (M. alba) ethanolic extract in repression of obesity-associated<br />hepatic steatosis and related metabolic disorder; dyslipidemia, hyperinsulinemia, and glycemic status.<br />Methods: Adult female albino rats were randomly assigned into four groups, eight rats each as follows: Group (1) control group received standard<br />rodent diet for 24 weeks. The other three groups administered high cholesterol diet for 12 weeks and served as obese group, M. alba-treated group,<br />and simvastatin-treated group.<br />Results: The current results showed an increment in thoracic circumference (TCX) and abdominal circumferences (AC) as well as body mass index<br />(BMI) in obese group. In addition, dyslipidemia, hyperinsulinemia, hyperglycemia, and insulin resistance have been elucidated in obese group.<br />Moreover, hepatic malondialdehyde (MDA), nitric oxide (NO), serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), and bilirubin<br />values were significantly increased in obese groups versus control group. On the other hand, administration of ethanolic extract of Morus alba or<br />simvastatin could significantly lessen BMI and in addition to improve dyslipidemia in obese group. Glucose, insulin levels, and insulin resistance value<br />in serum samples demonstrated a significant reduction in obese group upon treatment with M. alba ethanolic extract or simvastatin. Furthermore,<br />noticeable depletion in hepatic MDA, NO contents, serum ALT, AST activities, and serum bilirubin level was recorded as a result of treatment with<br />either ethanolic extract of M. alba or simvastatin. Histopathological examination of liver tissue showed ballooning degeneration in the hepatocytes<br />(hepatic steatosis) associated with inflammatory cells penetration in portal zone in obese group. Meanwhile, the treatment of obese groups with<br />ethanolic extract of M. alba or simvastatin was found to restore the structural organization of the liver.<br />Conclusion: The present findings provide a novel aspect for understanding of the role of M. alba against obesity-associated liver diseases and related<br />metabolic disorder. The mechanisms underlying these effects seem to depend on the hypolipidemic potential, anti-inflammatory property, and<br />antioxidant activity of its phytochemicals.<br />Keywords: Obesity, Morus alba, Dyslipidemia, Hyperinsulinemia, Hyperglycemia, Hepatic steatosis.</p>


2000 ◽  
Vol 10 (Supplement 1) ◽  
pp. 31S-37S ◽  
Author(s):  
Barbara Y. Whitman ◽  
Susan Myers ◽  
Aaron Carrel ◽  
David Allen

1986 ◽  
Vol 43 (2) ◽  
pp. 285-292 ◽  
Author(s):  
S. M. Rhind ◽  
B. A. Morris ◽  
Jill Clayton ◽  
J. M. Doney ◽  
R. G. Gunn ◽  
...  

ABSTRACTBorder Leicester × Scottish Blackface (Greyface) ewes of three groups, each comprising 118 animals in a wide range of body condition scores, were mated at a synchronized oestrus in mid October. The ewes were passively immunized against testosterone (group P), actively immunized against androstenedione (group F), or not treated (group C). All ewes were slaughtered at return to service or at 35 to 45 days of pregnancy and ovulation rates and numbers of embryos present were determined. Mean ovulation rates of ewes in group P were higher than in those in group C (P < 0·05) and this difference was evident at most levels of body condition. The absolute increase in ovulation rate, compared with the control group, was similar at all condition scores. Mean ovulation rates of ewes in group F were higher than those in group C (P < 0·001) and the magnitude of the increase was greater in ewes in higher condition scores. The incidence of ova wastage was variable but differences between treatments in mean ovulation rate were generally reflected in mean litter size. The conception rates of immunized ewes were depressed compared with those of control animals, particularly in ewes with a body condition score less than 3·0 at mating. Consequently, there was no improvement in the potential lambing rate of immunized ewes following only one cycle of mating. Circulating antibody titres were not related to conception rate or body condition at mating and were related to ovulation rate only in group F ewes. It is concluded that immunization against steroids, using either passive or active techniques, can improve the reproductive performance of individual ewes but improvement in the performance of the flock as a whole may only be achieved under optimal conditions of nutrition and season.


2022 ◽  
Author(s):  
Tobias Kube ◽  
Irving Kirsch ◽  
Julia Glombiewski ◽  
Philipp Herzog

After traumatic experiences, intrusive memories can flash back and evoke significant distress. Here, we investigated whether the occurrence of intrusions can be prevented by placebo. After the exposure to an experimental psychopathology model of psychological trauma, healthy participants (N=112) were randomised to deceptive placebo (DP), open-label placebo (OLP), or a no-treatment control group. The results show that one week later, the groups did not differ in the frequency of intrusive memories. However, participants receiving OLP reported the lowest intensity of intrusions. Participants receiving DP reported the lowest burden of intrusions. Across groups, the expectation that intrusions will be intense and hardly controllable was associated with a higher frequency of intrusions, higher distress, higher burden, and more negative appraisal. The results suggest that expectations play a crucial role in the emergence of intrusive memories and that at least some of the disabling aspects of intrusive memories can be reduced by placebo.


2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Xiulan Wang ◽  
Chun Chang ◽  
Wenjie Jin ◽  
Arun Arun ◽  
Sudunabuqi Sudunabuqi ◽  
...  

Background. Untreated nephropathy can progress to renal failure. The traditional Mongolian remedy Narenmandula regulates the kidney “yang.” This study aimed to identify key microRNAs (miRNAs) targeted by Narenmandula in a rat model of nephropathy. Methods. Fifteen rats exhibiting normal renal function were randomized to three study arms. Nephropathy was induced in n = 10 rats using doxorubicin hydrochloride, followed by either Narenmandula treatment (treatment group) or no treatment (control group). In n = 5 rats, no doxorubicin was given and renal function remained unchanged (healthy group). Microarray analysis identified miRNAs which were differentially expressed (DE-miRNAs) between groups. Target genes of DE-miRNAs were predicted using miRWalk version 2.0, followed by enrichment analysis using DAVID, and construction of the miRNA coregulatory network using Cytoscape. Results. Nephropathy was successfully induced, with doxorubicin resulting in differential expression of 3645 miRNAs (1324 upregulated and 2321 downregulated). Narenmandula treatment induced differential expression of a total of 159 miRNAs (102 upregulated and 57 downregulated). Upregulated DE-miRNAs (e.g., miR-497-5p, miR-195-5p, miR-181a-5p, miR-181c-5p, and miR-30e-5p) and downregulated DE-miRNAs (e.g., miR-330-3p and miR-214-3p) regulated a high number of target genes. Moreover, the miRNA pairs (e.g., miR-195-5p—miR-497-5p, miR-181a-5p—miR-181c-5p, and miR-30e-5p—miR-30a-5p) coregulated a high number of genes. Enrichment analysis indicated functional synergy between miR-30e-5p—miR-30a-3p, miR-34a-5p—miR-30e-5p, miR-30e-5p—miR-195-3p, and miR-30a-3p—miR-195-3p pairs. Conclusion. Narenmandula may modulate doxorubicin-induced nephropathy via targeting miR-497-5p, miR-195-5p, miR-181a-5p, miR-181c-5p, miR-30e-5p, miR-330-3p, miR-214-3p, miR-34a-5p, miR-30a-3p, and miR-30a-5p.


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