Melatonin Has a Beneficial Effect on Stallion Sperm Quality in Cool Condition

2015 ◽  
Vol 35 (7) ◽  
pp. 555-559 ◽  
Author(s):  
Ghazaleh Izadpanah ◽  
Ahmad Zare-Shahneh ◽  
Mahdi Zhandi ◽  
Iman Yousefian ◽  
Mojtaba Emamverdi
Author(s):  
Khaidatul Akmar ◽  
Mahanem Mat Noor

Diabetes mellitus is a metabolic disorder that often affected fertility health, specifically in men. Gynura procumbens (G. procumbens) has been used as traditional medicine due to its ability in treating various types of illness. Hence, this study was carried out to determine the potential beneficial effect of G. procumbens as anti-hyperglycaemia, pro-fertility and libido agent towards diabetes-induced male rats. A total of 42 male Sprague Dawley rats were randomly assigned into six groups; normal, negative, and positive control, and three treated groups of different dosages of G. procumbens aqueous extract (GPAE); 150 mg/kg, 300 mg/kg and 450 mg/kg. Each group was given treatment via oral gavage for seven consecutive days. The rats were sacrificed on day eighth for further analysis. The fasting blood glucose (FBG) level in all GPAE treated group showed significant decrease, and 450 mg/kg treated group showed significant reduction to a normal blood glucose level compared to all groups. There were significant increases in the sperm quality of GPAE treated groups after seven days of treatment compared to the negative and positive control group, specifically in 450 mg/kg treated group. Testis histology showed that GPAE treated groups produced a significant result whereby the seminiferous tubules were seen packed with sperm and successive stage of spermatogenesis were shown compared to control groups. Hormone analysis suggested that the luteneizing hormone (LH), follicle stimulating hormone (FSH) and testosterone hormone of the treated groups were elevated after seven days of treatment compared to the negative and positive control groups. Libido analysis of seven days treatment showed that GPAE treated groups, significantly improved in 450 mg/kg dose compared to other groups, with the highest number of mounting frequency and shortest mounting latency. Fertility test revealed a significant increase in number of implantation sites produced in GPAE treated groups compared to positive and negative control groups. In conclusion, GPAE exhibited a potential beneficial effect as an anti-diabetic and also as fertility agent in diabetic-induced male rats.


Author(s):  
Anna C. Fraker

Small amounts of nickel are added to titanium to improve the crevice corrosion resistance but this results in an alloy which has sheet fabrication difficulties and is subject to the formation of large Ti2Ni precipitates. These large precipitates can serve as local corrosion sites; but in a smaller more widely dispersed form, they can have a beneficial effect on crevice corrosion resistance. The purpose of the present work is to show that the addition of a small amount of Mo to the Ti-1.5Ni alloy reduces the Ti2Ni precipitate size and produces a more elongated grained microstructure. It has recently been reported that small additions of Mo to Ti-0.8 to lw/o Ni alloys produce good crevice corrosion resistance and improved fabrication properties.


Author(s):  
Jin Young Kim ◽  
R. E. Hummel ◽  
R. T. DeHoff

Gold thin film metallizations in microelectronic circuits have a distinct advantage over those consisting of aluminum because they are less susceptible to electromigration. When electromigration is no longer the principal failure mechanism, other failure mechanisms caused by d.c. stressing might become important. In gold thin-film metallizations, grain boundary grooving is the principal failure mechanism.Previous studies have shown that grain boundary grooving in gold films can be prevented by an indium underlay between the substrate and gold. The beneficial effect of the In/Au composite film is mainly due to roughening of the surface of the gold films, redistribution of indium on the gold films and formation of In2O3 on the free surface and along the grain boundaries of the gold films during air annealing.


2004 ◽  
Vol 171 (4S) ◽  
pp. 416-416
Author(s):  
Shai Sheji ◽  
Ruth Weissenberg ◽  
Gil Raviv ◽  
Igael Madgar

2005 ◽  
Vol 173 (4S) ◽  
pp. 371-371
Author(s):  
Nikolai Leonhartsberger ◽  
Kadir Tosun ◽  
Germar-Michael Pinggera ◽  
Michael Mitterberger ◽  
Peter Rehder ◽  
...  

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