2.Arginine and repair of burn injury.
Chinese Journal of Burns 2005;21(4):244-246
Arginine
;
therapeutic use
;
Burns
;
therapy
;
Humans
;
Nutrition Therapy
;
Wound Healing
4.Application of specific nutrients for patients after surgery.
Chinese Journal of Gastrointestinal Surgery 2012;15(5):433-436
Special nutritional support containing glutamine, arginine, and omega-3 fatty acids has therapeutic and immunomodulatory effects, and can significantly reduce the incidence of postoperative infectious complications and length of hospital stay in surgical patients. This review provides a clinical update regarding the concept and the use of pharmaconutrition and immunonutrition in patients undergoing gastrointestinal surgery.
Arginine
;
therapeutic use
;
Digestive System Surgical Procedures
;
Enteral Nutrition
;
Fatty Acids, Omega-3
;
therapeutic use
;
Glutamine
;
therapeutic use
;
Humans
5.Research progress in ecological prevention of dental caries.
Chinese Journal of Stomatology 2022;57(3):297-301
Dental caries is one of the most common oral diseases around the world. Dental plaque attached to the surfaces of teeth is the main biological factor leading to caries. Although fluoride is still one of the most commonly used methods to prevent caries, with the change of epidemiological characteristics of caries and the update of the understanding of caries etiology, it is necessary to use other ecological methods such as antimicrobial peptides, arginine, probiotics and natural products, etc. to enhance the effect of fluoride in preventing dental caries. The present article reviews the research progress on the ecological approaches for caries prevention in recent years.
Arginine
;
Dental Caries/prevention & control*
;
Fluorides/therapeutic use*
;
Humans
;
Mouth Diseases/complications*
6.Experimental research on Arginine-gingipain A gene vaccine from Porphyromonas gingivalis that prevents peri-implantitis in Beagle dogs.
Li CHUANHUA ; Wang ZHIFENG ; Zhu LINA ; Fan XIN ; Lan JING
West China Journal of Stomatology 2018;36(1):76-81
OBJECTIVE:
This study aims to use Arginine-gingipain A gene vaccine (pVAX1-rgpA) to immunize adult Beagle dogs and to evaluate its effect during peri-implantitis progression and development.
METHODS:
Plasmid pVAX1-rgpA was constructed. The second and third bilateral mandible premolars of 15 adult Beagle dogs were extracted, and the implants were placed immediately. After 3 months, the animals were randomly divided into groups A, B, and C. Afterward, the animals were immunized thrice with plasmid pVAX1-rgpA, with heat-killed Porphyromonas gingivalis, or pVAX1, respectively. IgG in the serum and secretory IgA (sIgA) in saliva were quantitatively analyzed by enzyme-linked immunosorbent assay before and after 2 weeks of immunization. Peri-implantitis was induced with cotton ligatures fixed around the neck of implants. Probing depth (PD) and bleeding on probing were recorded. All animals were sacrificed after ligaturation for 6 weeks. Decalcified sections with thickness of 50 μm were prepared and dyed with methylene blue to observe the bone phenotype around implants.
RESULTS:
Levels of serum IgG and sIgA in saliva were higher in groups A and B after immunization than before the process (P<0.05) and higher than those in group C (P<0.05). However, no difference was observed between groups A and B (P>0.05). At 4 and 6 weeks after ligaturation, PD of the ligatured side in group C was higher than that in groups A and B (P<0.05). On the other hand, no difference was identified between groups A and B (P>0.05). Bone loss in group A was significantly lower than that of the other groups (P<0.05). Abundant inflammatory cells and bacteria were present in the bone loss area around the implants in the three groups, as identified through hard tissue section observation. However, group C presented the most number of inflammatory cells and bacteria in the bone loss area around the implants.
CONCLUSIONS
IgG and sIgA can be generated by immunity with rgpA DNA vaccine, which can significantly slow down bone loss during experimental peri-implantitis in dogs.
Adhesins, Bacterial
;
therapeutic use
;
Alveolar Bone Loss
;
Animals
;
Arginine
;
Cysteine Endopeptidases
;
therapeutic use
;
Dental Implants
;
Dogs
;
Peri-Implantitis
;
prevention & control
;
Porphyromonas gingivalis
;
chemistry
;
Vaccines
;
therapeutic use
7.Cell metabolomics study of ginkgo flavone aglycone combined with doxorubicin against liver cancer in synergy.
Yuan LU ; Yan-Li WANG ; Zhong-Jun SONG ; Xiao-Qing ZHU ; Chun-Hua LIU ; Ji-Yu CHEN ; Yong-Jun LI ; Yan HE
China Journal of Chinese Materia Medica 2022;47(18):5040-5051
Ultra-high-performance liquid chromatography-Q exactive orbitrap tandem mass spectrometry(UHPLC-QEOrbitrap-MS/MS) was used to explore the inhibitory effect and mechanism of ginkgo flavone aglycone(GA) combined with doxorubicin(DOX) on H22 cells. The effects of different concentrations of GA and DOX on the viability of H22 cells were investigated, and combination index(CI) was used to evaluate the effects. In the experiments, control(CON) group, DOX group, GA group, and combined GA and DOX(GDOX) group were constructed. Then the metabolomics strategy was employed to explore the metabolic markers that were significantly changed after combination therapy on the basis of single medication treatment, and by analyzing their biological significance, the effect and mechanism of the anti-tumor effect of GA combined with DOX were explained. The results revealed that when 30 μg·mL~(-1) GA and 0.5 μmol·L~(-1) DOX was determined as the co-administration concentration, the CI value was 0.808, indicating that the combination of GA and DOX had a synergistic anti-tumor effect. Metabolomics analysis identified 23 metabolic markers, including L-arginine, L-tyrosine and L-valine, mostly amino acids. Compared with the CON group, 22 and 17 metabolic markers were significantly down-regulated after DOX treatment and GA treatment, respectively. Compared with the DOX and GA groups, the treatment of GA combined with DOX further down-regulated the levels of these metabolic markers in liver cancer, which might contribute to the synergistic effect of the two. Five key metabolic pathways were found in pathway enrichment analysis, including glutathione metabolism, phenylalanine metabolism, arginine and proline metabolism, β-alanine metabolism, and valine, leucine and isoleucine degradation. These findings demonstrated that the combination of GA and DOX remarkably inhibited the viability of H22 cells and exerted a synergistic anti-tumor effect. The mechanism might be related to the influence of the energy supply of tumor cells by interfering with the metabolism of various amino acids.
Arginine/therapeutic use*
;
Doxorubicin/therapeutic use*
;
Flavones/therapeutic use*
;
Ginkgo biloba/chemistry*
;
Glutathione
;
Humans
;
Isoleucine/therapeutic use*
;
Leucine/therapeutic use*
;
Liver Neoplasms/drug therapy*
;
Metabolomics/methods*
;
Phenylalanine/therapeutic use*
;
Proline
;
Tandem Mass Spectrometry/methods*
;
Tyrosine/therapeutic use*
;
Valine/therapeutic use*
;
beta-Alanine/therapeutic use*
8.Non-surgical therapy of Peyronie's disease.
Frederick L TAYLOR ; Laurence A LEVINE
Asian Journal of Andrology 2008;10(1):79-87
The present paper provides a review of the available non-surgical treatments for Peyronie's disease (PD). A review of published literature on oral, intralesional, external energy and iontophoresis therapies for PD was performed, and the published results of available treatment options reviewed. The authors recommendations for appropriate non-surgical management of PD are provided. Although there are many published reports that show the efficacy of non-surgical therapies for PD, there is a lack of large scale, multicenter controlled clinical trials, which makes treatment recommendations difficult. Careful review of the literature does suggest that there are treatment options that make scientific sense and appear to stabilize the disease process, reduce deformity, and improve function. Offering no treatment at all will encourage our patients to pursue alternative treatments, which might do harm, and misses the opportunity to do some good. Clearly further work is necessary to develop safe and effective non-surgical treatments for PD.
Animals
;
Arginine
;
therapeutic use
;
Carnitine
;
therapeutic use
;
Collagenases
;
therapeutic use
;
Combined Modality Therapy
;
Electric Stimulation Therapy
;
Humans
;
Male
;
Penile Induration
;
therapy
;
Pentoxifylline
;
therapeutic use
;
Randomized Controlled Trials as Topic
;
Traction
9.Comparative study on the influence of arginine hydrochloride and arginine acetate on the immune function and acid-base balance in rabbits with severe burns.
Xi PENG ; Zhong-yi YOU ; Hong YAN ; Pei WANG ; Xin ZHOU ; Jing LIU ; Shi-liang WANG
Chinese Journal of Burns 2005;21(4):262-265
OBJECTIVETo investigate the influence of arginine hydrochloride and arginine acetate on the immune function and acid-base balance in rabbits with severe burns.
METHODSOne hundred and ten flap-eared rabbits were used in the study, in which 8 served as normal control, while the rest were inflicted with 30% TBSA full thickness burn. All the rabbits were divided into 10 groups, i.e. normal control (C, n = 14), burn control (B, n = 14, with intravenous infusion of Ringer's solution), 0.3 g/kg arginine hydrochloride (AH, n = 12), 0.3 g/kg arginine acetate (AA, n = 10), 0.6 g/kg AH (n = 10), and 0.6g/kg AA (n = 10) groups, 1.2 g/kg AH (n = 10), 1.2 g/kg AA (n = 10), 2.4 g/kg AA (n = 14) and 2.4 g/kg AH (n = 12) groups. AA and AH in different doses were fed to rabbits in corresponding groups 2 times a day for 7 days. The changes in the immune function, acid-base balance, chloride ion metabolism, and mortality were determined.
RESULTSDisorder in immune system was found after severe burns, with enhanced immune function at the beginning and weakening afterwards. The lymphocytic transformation rate, the CD4/CD8 ratio, the phagocytosis rate and the chemotactic index of white blood cells on 7 post burn day (PBD) were obviously lower in B group compared with C group (P < 0.05 or 0.01). These indices were obviously higher in 1.2, 2.4 g/kg AA and AH groups than those in B group on 7 PBD (P < 0.05 or 0.01). There was no difference in improvement of immune functions between 0.3, 0.6g/kg AH, AA group and B group. The values of blood pH, base excess (BE), buffer base (BB), HCO(3)(-) level in AH group were significantly lower than those in C group on 7 PBD (P < 0.05 or 0.01), while there were no obvious changes in AA group, they were obviously higher than those in AH group (P < 0.05 or 0.01). The contents of chloride ion in but 2.4 g/kg AH group during 5 to 7 PBD were obviously higher than those in C group and 2.4 g/kg AA group (P < 0.05 or 0.01), while no difference was found between 2.4 g/kg AA and C groups. The mortality in B group was obviously higher than that in 0.3, 0.6, 1.2 g/kg AH and AA groups (P < 0.05 or 0.01), but significantly lower than that in 2.4 g/kg AA and AH groups (P < 0.05).
CONCLUSIONDisorders in immune functions were observed in severely burned rabbits. Administration of arginine acetate as well as arginine hydrochloride could enhance the immune function, but arginine acetate seemed to be safer than arginine hydrochloride. Excessive dosage should be avoided to prevent a rise of the mortality.
Acetates ; chemistry ; therapeutic use ; Acid-Base Equilibrium ; Animals ; Arginine ; chemistry ; therapeutic use ; Burns ; immunology ; physiopathology ; therapy ; Enteral Nutrition ; Female ; Male ; Rabbits ; Wound Healing
10.Influence of L-arginine supplementation on the plasma amino acid spectrum in burn patients.
Shu-liang LU ; Kui GE ; Ting XIE ; Shu-wen JIN ; Ji-xiang SHI
Chinese Journal of Burns 2005;21(4):247-250
OBJECTIVETo explore the influence of L-arginine supplementation on the plasma amino acid spectrum in burn patients.
METHODSTen burn patients were randomly divided into burn control (n = 5, with compound 14 amino acid injection accounting for 2% of the total caloric value), and experimental (n = 5, with intravenous injection of L-arginine which accounted for 2% of total caloric value) groups. The intake of other nutrients for these two groups of patients was the same. The nutrient regimen was begun on the 3 PBD, with one quarter of the daily supply. On 4 and 5 PBD, one half of the daily supply was given, and from 6 to 21 PBD full supplementation was given. Venous blood samples were collected on 3, 7, 14, 21 and 28 PBD for the determination of plasma levels of amino acids. Ten normal volunteers served as normal control.
RESULTSThe plasma level of citrulline in both groups was significantly lower than normal value (P < 0.05) on 3 PBD before L-arginine supplementation. There was no obvious difference in plasma levels of ornithine and arginine in the two groups on 3 PBD compared with normal value (P > 0.05). The plasma level of ornithine, citrulline and arginine in burn control group declined on 3 PBD. The plasma level of arginine in experimental group on 14, 21 and 28 PBD were 280 +/- 121 micromol/L, 223 +/- 106 micromol/L and 110 +/- 44 micromol/L, respectively, which were significantly higher than those in burn control group (124 +/- 21 micromol/L, 59 +/- 15 micromol/L, 50 +/- 26 micromol/L). The plasma level of ornithine (30 +/- 5 micromol/L) and citrulline (162 +/- 44 micromol/L) on 21 PBD in experimental group were markedly higher than those in burn control group (8 +/- 7 micromol/L, 66 +/- 4 micromol/L, P < 0.05 or 0.01). There was no difference in the plasma levels of other amino acids at all postburn time points between the two groups (P > 0.05).
CONCLUSIONThe production process of L-arginine from citrulline was accelerated after burns. The plasma levels of L-arginine, ornithine and citrulline were increased markedly after L-arginine supplementation, while that of other amino acids was not influenced. The pharmacological effects of L-arginine may be related to the promotion of ornithine cycle.
Adolescent ; Adult ; Amino Acids ; blood ; Arginine ; therapeutic use ; Burns ; blood ; drug therapy ; Female ; Humans ; Male ; Parenteral Nutrition ; Wound Healing