1.Study on influence of some additifs on stability of eye drops with vitamine B5
Pharmaceutical Journal 2004;44(12):14-18
The effect of buffer system, adjustment substance pH, pH of solution, antioxygen and antiseptic on the stability of eye drop solution with vitamin B5 was studied. The result: at pH 5,5, buffer system of acetat, of citrat and of phosphat strictly influence to the stability of eye drop solution containing vitamin B5. This solution also sustained with antioxygen dinatri edetat 0,02%, combining with natri metabisulfid 0,1% -0,3% don’t make increase the stability of product. The antiseptic of benzalkonium clorid and chlorobutanol don’t influence to the stability of this solution. But benzalkonium clorid is appropriate than chlorobutanol because of it don’t absorb through PE plastic, the antiseptic efficacy increase with the presence of dinatri edetat and this make increase the bioavailability of drug
Ophthalmic Solutions
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Pantothenic Acid
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Pharmaceutical Preparations
2.Aluminum toxicity to bone: A multisystem effect?
Osteoporosis and Sarcopenia 2019;5(1):2-5
Aluminum (Al) is the third most abundant element in the earth's crust and is omnipresent in our environment, including our food. However, with normal renal function, oral and enteral ingestion of substances contaminated with Al, such as antacids and infant formulae, do not cause problems. The intestine, skin, and respiratory tract are barriers to Al entry into the blood. However, contamination of fluids given parenterally, such as parenteral nutrition solutions, or hemodialysis, peritoneal dialysis or even oral Al-containing substances to patients with impaired renal function could result in accumulation in bone, parathyroids, liver, spleen, and kidney. The toxic effects of Al to the skeleton include fractures accompanying a painful osteomalacia, hypoparathyroidism, microcytic anemia, cholestatic hepatotoxicity, and suppression of the renal enzyme 25-hydroxyvitamin D-1 alpha hydroxylase. The sources of Al include contamination of calcium and phosphate salts, albumin and heparin. Contamination occurs either from inability to remove the naturally accumulating Al or from leeching from glass columns used in compound purification processes. Awareness of this long-standing problem should allow physicians to choose pharmaceutical products with lower quantities of Al listed on the label as long as this practice is mandated by specific national drug regulatory agencies.
Aluminum
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Anemia
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Antacids
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Calcium
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Eating
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Glass
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Heparin
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Humans
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Hypoparathyroidism
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Infant Formula
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Intestines
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Kidney
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Leeching
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Liver
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Osteomalacia
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Parathyroid Glands
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Parenteral Nutrition Solutions
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Peritoneal Dialysis
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Pharmaceutical Preparations
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Renal Dialysis
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Respiratory System
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Salts
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Skeleton
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Skin
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Spleen
3.Changes of parameters of ultrasound Doppler before and after the hemodialysis
Journal of Practical Medicine 2002;435(11):47-50
A prospective study on a group of 129 patient was echocardiographical compared with a group of 109 normal subjects: based on Framingham criteria, the prevalence of LV hypertrophy were 88.4%, LV dilatation - 58.9% and systolic dysfunction - 21.7%. To determine the influence of haemodyalysis on echo-Doppler indices of the heart, 58 patients were studied by Doppler-echocardiography immediately before and after haemodialysis. This procedure resulted in immediate alterations of the heart: decrease in blood pressure, increase in heart rate. Left ventricular diameters and volumes decreased significantly whereas, the systolic function, cardiac output and index increased. Haemodialysis elicited marked changes in the left ventricular filling pattern: mitral peak E, peak A, ratio E/A decreased and pulmonary vein flow S/D ratio increased. The results provide evidence for the pronounced preload-dependence of morphologic, functional and hemodinamic indices of the heart.
Hemodialysis Solutions
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Ultrasonics
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Renal Dialysis
4.Contribution to research the change of erythrocytes conserving by AS-T solution.
Journal of Practical Medicine 2002;435(11):17-19
After conserving by AS-T solution for 42 days, 95% of erythrocytes were remained in good condition and the HGB and HCT indices were still in normal range. Comparison with another erythrocyte conserving solution made by Terumo (Japan) showed that the erythrocytes conserved by AS-T solution were not significant different not only at the beginning but also by 42 days of experiment.
Erythrocytes
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Research
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Solutions
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Pharmaceutical Preparations
5.Diarrhea in a family in a barangay community of Catarman, Samar.
Acta Medica Philippina 2010;44(3 Supplement):14-16
Treating the health problems of the community will treat those of the family. Juan de la Cruz and his son can be made well after proper treatment of their diarrhea, but adequate, proper and continuing management of the environmental problems of Barangay Jose Abad Santos (JAS), related to the development of disease, would be the more lasting solution to this important and common community health problem.
Diarrhea ; Nuclear Family ; Pharmaceutical Solutions ; Public Health ; Solutions
6.Development of New Organ Preservation Solutions in Kyoto University.
Fengshi CHEN ; Takayuki NAKAMURA ; Hiromi WADA
Yonsei Medical Journal 2004;45(6):1107-1114
Although lung transplantation (LTx) has been established as a therapeutic approach for end-stage respiratory failure, several problems remain to be solved. In addition to the serious problem of donor shortage, primary graft failure, which is mostly caused by ischemia-reperfusion injury, a serious problem, and represents one of the most frequent causes of early mortality. The development of a highly reliable organ preservation solution that reduces ischemia-reperfusion injury will improve the functioning of transplanted organs and alleviate the donor shortage. We first evaluated the importance of saccharides and electrolytes in the lung preservation solution. We proved the superiority of trehalose, a non-reducing disaccharide, and the efficiency of the extracellular-type (low potassium) ion composition, and we also developed an extracellular-type trehalose containing Kyoto (ET-Kyoto) solution. Furthermore, several agents for vascular endothelial protection were evaluated, and finally, a more effective solution named "new ET-Kyoto solution" was developed, by adding N-acetylcysteine, dibutyryl adenosine 3', 5'-cyclic monophosphate, and nitroglycerin to the "conventional" ET-Kyoto solution. The new ET-Kyoto solution enabled canine LTx to last up to 30 hours. ET-Kyoto solution has so far been used and produced good results in five clinical LTx throughout Japan and South Korea. Although it was initially developed for lung preservation, its effectiveness in the preservation of various organs/ tissues, such as the trachea, kidney, skin/muscle flap, amputated digits, liver, and pancreas, has also been experimentally and clinically shown. In this paper, clinical and experimental findings with ET-Kyoto solution have been accumulated to further analyze its effect, safety, and chemical stability. We hope to provide ET-Kyoto solution as the standard organ/tissue preserving solution throughout the world.
Animals
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Humans
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Japan
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*Organ Preservation Solutions
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*Technology, Pharmaceutical
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*Universities
8.In Vivo Effects of Preservative-free and Preserved Prostaglandin Analogs: Mouse Ocular Surface Study.
Jee Hyun KIM ; Eun Joo KIM ; Yeoun Hee KIM ; Yong Il KIM ; Se Hyung LEE ; Jae Chang JUNG ; Kyoo Won LEE ; Young Jeung PARK
Korean Journal of Ophthalmology 2015;29(4):270-279
PURPOSE: Chronic use of topical hypotensive agents induces several side effects caused by preservatives. The purpose of this study was to evaluate the effects of prostaglandin analogs with varying concentrations of benzalkonium chloride (BAC), preservative-free (PF), and alternative preservatives on mouse corneal tissue. METHODS: Thirty-five, 8- to 10-week-old female C57BL/6 mice (five mice for each group) were used for this study. To the control group, we applied normal saline, and to each drug-treated group we applied 0.02% BAC, bimatoprost 0.01% (with BAC 0.02%), latanoprost 0.005% (with BAC 0.02%), travoprost 0.004% (with 0.001% polyquad) or tafluprost 0.0015% with/without 0.001% BAC, once a day (9 p.m.) for 4 weeks. Corneal fluorescein staining was evaluated in all groups. After harvest, the corneal tissues were embedded in paraffin and then Hematoxylin-Eosin stain was performed for histopathological examination. Immunofluorescence staining was done against TNF-alpha, IL-6, HLA DR, pJNK, and pAkt. RESULTS: In corneal fluorescein staining, severe punctate epithelial keratitis was seen in the groups of 0.02% BAC, 0.02% BAC containing bimatoprost 0.01% and latanoprost 0.005%. The surface desquamation, irregular surface, loss of cell borders, anisocytosis and stromal shrinkage were observed in the groups of BAC-containing eye drops. Moreover, the groups treated with BAC-containing eye drops have high inflammatory markers, significantly decreased cell viability-related signal, pAkt, and higher apoptosis-inducing signal, pJNK, than the control group. On the other hand, travoprost 0.004% and PF tafluprost 0.0015% have less cellular morphologic changes, lower inflammation, and higher cellular viability than BAC-containing formulations. CONCLUSIONS: Corneal damage, increased inflammation and apoptosis and low cell viability were observed in BAC-containing groups. PF or alternatively preserved glaucoma medications seem to be a reasonable and viable alternative to those preserved with BAC.
Animals
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Cell Survival
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Conjunctiva/drug effects/*pathology
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Disease Models, Animal
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Epithelium, Corneal/drug effects/*pathology
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Female
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Glaucoma/*drug therapy/pathology
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Mice
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Mice, Inbred C57BL
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Microscopy, Fluorescence
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Ophthalmic Solutions
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Preservatives, Pharmaceutical
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Prostaglandins, Synthetic/*administration & dosage
9.Application of supercritical solution rapid expansion technology in preparation of fine pharmacal particles.
Zhong-yi ZHANG ; Hong-lei LI ; Zheng-jie LEI
China Journal of Chinese Materia Medica 2006;31(23):1933-1936
Rapid expansion of supercritical solution (RESS), a new technology, has been developed in the recent years. Fundamental principle of RESS technology used to prepare fine pharmacal particles was summarized in this paper. A brief review of factors which influenced the process of RESS and application of RESS technology were introduced.
Crystallization
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methods
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Delayed-Action Preparations
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Nanostructures
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Particle Size
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Pharmaceutical Preparations
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chemistry
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Solubility
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Solutions
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Technology, Pharmaceutical
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instrumentation
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methods
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Temperature
10.The Effect of Dialysate Flow Rate on Dialysis Adequacy and Fatigue in Hemodialysis Patients.
Journal of Korean Academy of Nursing 2016;46(5):642-652
PURPOSE: In this single repeated measures study, an examination was done on the effects of dialysate flow rate on dialysis adequacy and fatigue in patients receiving hemodialysis. METHODS: This study was a prospective single center study in which repeated measures analysis of variance were used to compare Kt/V urea (Kt/V) and urea reduction ratio (URR) as dialysis adequacy measures and level of fatigue at different dialysate flow rates: twice as fast as the participant’s own blood flow, 500 mL/min, and 700 mL/min. Thirty-seven hemodialysis patients received all three dialysate flow rates using counterbalancing. RESULTS: The Kt/V (M±SD) was 1.40±0.25 at twice the blood flow rate, 1.41±0.23 at 500 mL/min, and 1.46±0.24 at 700 mL/min. The URR (M±SD) was 68.20±5.90 at twice the blood flow rate, 68.67±5.22 at 500 mL/min, and 70.11±5.13 at 700 mL/min. When dialysate flow rate was increased from twice the blood flow rate to 700 mL/min and from 500 mL/min to 700 mL/min, Kt/V and URR showed relative gains. There was no difference in fatigue according to dialysate flow rate. CONCLUSION: Increasing the dialysate flow rate to 700 mL/min is associated with a significant nicrease in dialysis adequacy. Hemodialysis with a dialysate flow rate of 700 mL/min should be considered in selected patients not achieving adequacy despite extended treatment times and optimized blood flow rate.
Dialysis*
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Fatigue*
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Hemodialysis Solutions
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Humans
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Prospective Studies
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Renal Dialysis*
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Treatment Outcome
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Urea