1.A preliminary research on the effect of Phunamine on some athlete\u2019s standards
Ngan Thi Kim Nguyen ; Binh Viet Truong ; Phuong Quy Le ; Nam Huy Nguyen
Journal of Medical and Pharmaceutical Information 2005;0(10):24-27
Background: To improve the physical fitness of athletes is one of the essential requirements of the Vietnam Sports associations. Research to discover the functional foods to improve the physical fitness of athletes in general, in particular athletic athletes is an interest to scientists. Objective: Evaluation of effect of Phunamine on some of the male, female athlete\u2019s biomedicine and physical fitness standards. Subject and methods: A controlled, double-blind, randomized, clinical experiment was conducted on 30 athletes of the Hanoi Athletic Group. They were then divided into 2 groups: research group: 20 athletes (10 men, 10 women) were administered with 4 phunamine pills per day; control group: 10 athletes (5 men, 5 women) were each administered with 4 placebo pills per day. The 2 groups had tests performed and followed up 30 days pre and post administration. Results: Max-min blood pressure change between the two groups was not significant (t(\u03b1)>0.5). Testosterone concentration change and physical fitness test (run 100m, 400m) of Phunamine dosed group were higher than the placebo group (t(\u03b1)<0.5). Conclusion: Phunamine has the effects of increasing testosterone concentration and improving physical fitness of athletes however the drug has no effect on blood pressure index of athletic athletes.
Phunamine
;
functional foods
;
athletes
2.Pathological brain lesions in girls with central precocious puberty at initial diagnosis in Southern Vietnam
Quynh Thi Vu HUYNH ; Ban Tran HO ; Nguyen Quoc Khanh LE ; Tung Huu TRINH ; Luu Ho Thanh LAM ; Ngan Thi Kim NGUYEN ; Shih-Yi HUANG
Annals of Pediatric Endocrinology & Metabolism 2022;27(2):105-112
Purpose:
Cranial magnetic resonance imaging (MRI) is recommended to identify intracranial lesions in girls with central precocious puberty (CPP). Yet, the use of routine MRI scans in girls with CPP is still debatable, as pathological findings in girls 6 years of age or older with CPP are limited. Therefore, we aimed to identify the prevalence of brain lessons in CPP patients stratified by age group (0–2, 2–6, and 6–8 years).
Methods:
This retrospective cross-sectional study recruited 257 girls diagnosed with CPP for 6 years (2010–2016). MRI was used to detect brain abnormalities. Levels of luteinizing hormone, follicle-stimulating hormone, and sex hormones in blood samples were measured.
Results:
Most girls had no brain lesions (82.9%, n=213), and of the minor proportion of girls with CPP that exhibited brain lesions (17.1%, n=44), 32 girls had organic CPP. Pathological findings were detected in 33.3% (2 of 6) of girls aged 0–2 years, 15.6% (5 of 32) of girls aged 2–6 years, and 3.6% (8 of 219) of girls aged 6–8 years. Hypothalamic hamartoma and tumors in the pituitary stalk were the most common pathological findings. The likelihood of brain lesions decreased with age. Girls with organic CPP were more likely to be younger (6.1±2.4 vs. 7.3±1.3 years, p<0.01) than girls with idiopathic CPP.
Conclusion
Older girls appeared to have a lower prevalence of organic CPP. Clinicians should cautiously use cranial MRI for girls aged 6–8 years with CPP.
3.Identification and characterization of antifungal compounds from a Burkholderia strain against plant pathogenic fungi
Theodorus Eko Pramudito ; Delia Agustina ; Widyah Budinarta ; Thi Kim Ngan Nguyen ; Cahya Prihatna ; Antonius Suwanto
Malaysian Journal of Microbiology 2020;16(4):245-252
Aims:
Biocontrol of fungal plant pathogens using beneficial microorganisms is a safer alternative over synthetic
fungicides. PHP12 is a bacterial strain isolated from healthy oil palm rhizosphere and is closely related to the recently
described Burkholderia stagnalis, a member of the Burkholderia cepacia complex. This study aimed to characterize the
antifungal activity spectrum of PHP12 and identify the antifungal compounds produced by the strain.
Methodology and results:
The antifungal activity of PHP12 was characterized by growing fungal strains in the
presence and absence of PHP12 and measuring the radius of the antifungal zone. PHP12 inhibited the growth of fungal
pathogens including Ganoderma boninense, Curvularia oryzae, Phellinus noxius and Colletotrichum capsici. However,
PHP12 did not inhibit the growth of Trichoderma asperellum, a known fungal biocontrol agent. The antifungal
compounds of PHP12 were precipitated using ammonium sulfate and further purified with HPLC followed by
identification using Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometric (LC/ESI-MS). The
LC/ESI-MS analysis showed the presence of an oligopeptide with a molecular weight of 1210.63 Da. The peptide
consists of heavily modified amino acids that are linked by a hexose residue.
Conclusion, significance and impact of study
Although characteristics of the antifungal compounds are similar to
other antifungal peptides from Burkholderia such as occidiofungin, there have been no reports of antifungal peptides
from B. stagnalis with the corresponding molecular weight or fragmentation profile. The novelty of the compound, as well
as its antifungal spectrum, makes PHP12 an interesting strain to be investigated further as a biocontrol agent.
Fungicides, Industrial
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Burkholderia cepacia complex--pathogenicity