• Title/Summary/Keyword: drug pressure

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Reducing Veterinary Drug Residues in Animal Products: A Review

  • Rana, Md Shohel;Lee, Seung Yun;Kang, Hae Jin;Hur, Sun Jin
    • Food Science of Animal Resources
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    • v.39 no.5
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    • pp.687-703
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    • 2019
  • A survey we conducted suggests that the ingestion of veterinary drug residues in edible animal parts constitutes a potential health hazard for its consumers, including, specifically, the possibility of developing multidrug resistance, carcinogenicity, and disruption of intestinal normal microflora. The survey results indicated that antibiotics, parasitic drugs, anticoccidial, or nonsteroidal anti-inflammatory drugs (NSAIDs) are broadly used, and this use in livestock is associated with the appearance of residues in various animal products such as milk, meat, and eggs. We observed that different cooking procedures, heating temperatures, storage times, fermentation, and pH have the potential to decrease drug residues in animal products. Several studies have reported the use of thermal treatments and sterilization to decrease the quantity of antibiotics such as tetracycline, oxytetracycline, macrolides, and sulfonamides, in animal products. Fermentation treatments also decreased levels of penicillin and pesticides such as dimethoate, malathion, Dichlorodiphenyldichloroethylene, and lindane. pH, known to influence decreases in cloxacillin and oxacillin levels, reportedly enhanced the dissolution of antimicrobial drug residues. Pressure cooking also reduced aldrin, dieldrin, and endosulfan in animal products. Therefore, this review provides updated information on the control of drug residues in animal products, which is of significance to veterinarians, livestock producers, and consumer health.

Enhanced Transdermal Delivery of Procaine Hydrochloride by lontophoresis -Comparison of Synergic Effect of High Voltage Current and Ultrasound- (이온도입에 의한 염산프로카인의 경피전달 증대 -고전압전류 및 초음파 병행의 상승효과 비교-)

  • Lee, Jong-Sook;Kim, Kyoung-Won;Lee, Jae-Hyoung;Choi, Yeong-Wook;Lee, Jae-Hwi
    • Journal of Pharmaceutical Investigation
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    • v.36 no.3
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    • pp.185-192
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    • 2006
  • The purpose of this study was to determine the effects of iontophoresis on transdermal delivery of procaine hydrochloride in healthy volunteers, as well as to the synergic effect of high voltage current or ultrasound on the efficacy of transdermal delivery of iontophoresis. Forty healthy volunteers were randomly assigned to four groups topical application group (TA), iontophoresis group (IT), pre-treatment of high voltage current stimulation with iontophoresis (HVS + IT), and pre-treatment of ultrasound application with iontophoresis (US + IT). All subjects received procaine iontophoresis on the forearm using direct current with 4 mA f3r 15 minutes. All subject was measured the duration of local anesthesia, pressure pain threshold, pain perception threshold using rectangular wave at 0.2 ms, 1 ms, 50 ms of rectangular current stimulation after procaine iontophoresis. For comparisons of the sensory characteristics and efficacy of iontophoresis between the groups, an one-way ANOVA and Kruskal-Wallis were used. The significant difference the duration of local anesthesia were found between the groups (p<0.001). The local anesthetic duration of IT, HVS+IT were significantly longer than TA. Meanwhile, the local anesthetic duration of US+IT was significantly longer than HVS+IT, IT and TA group (p<0.05). Also, the pressure pain threshold, pain perception threshold at 0.2 ms, 1 ms, 50 ms were significant difference between the groups (p<0.001). All sensory characteristics including pressure pain threshold, pain perception threshold of IT, HVS+IT was significantly increased than TA, whereas, US+1T was significantly increased HVS+1T, IT and TA (p<0.05). This study showed that the procaine iontophoresis have increase the duration of local anesthesia concomitantly pressure pain threshold and pain perception threshold of sensory nerve fibers such as $A-{\beta}$, $A-{\delta}$ and C fiber. This findings suggest that the iontophoresis enhanced the transdermal delivery of drug ions in vivo. The combination of ultrasound application and iontophoresis synergized the transdermal delivery of drug ions. It is suggests that an electric field, mechanical and heating property of ultrasound may contribute to synergic effect due to temporary changes of structure in the stratum corneum.

Controlled Release of Nifedipine from Osmotic Pellet Based on Porous Membrane (니페디핀을 포함한 삼투성펠렛의 제조와 다공성막을 통한 약물방출제어)

  • Youn, Ju-Yong;Ku, Jeong;Kim, Byung-Soo;Kim, Moon-Suk;Lee, Bong;Khang, Gil-Son;Lee, Hai-Bang
    • Polymer(Korea)
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    • v.32 no.4
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    • pp.328-333
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    • 2008
  • The osmotic delivery systems are based on osmosis. The transverse diffusion of water through a porous membrane from a medium with a low osmotic pressure to a medium with a high osmotic pressure. Nifedipine tablet dosage forms of Procardia $XL^{(R)}$(Pfizer) and $Adalat^{(R)}$(Bayer) are commercialized systems of this type that push-pull osmotic tablet operates successfully in delivering water-insoluble drugs. We prepared osmotic pellet system by fluidized bed coating method, and model-drug used nifedipine. The osmotic pellet system was composed of the core material. the swelling and osmotic pressure layer, the drug coating layer, and the porous membrane. This work is performed to investigate the effect of different factors, such as composition and thickness of membrane. The osmotic pellet has been successfully prepared by fluidized bed coating technology. The drug release behavior depended on the increase of CA ratio and thickness in porous membrane. The morphology of the osmotic pellet before and after the dissolution test were observed by SEM. In conclusion, we found that the drug release of osmotic pellet depended on the composition and coating thickness of porous membrane.

The literary review on the Treatment of Pressure Sore (褥瘡의 治療에 관한 문헌적 고찰)

  • Song, Jae-chul;Chung, Seok-hee;Lee, Jong-soo;Shin, Hyun-dae;Kim, Sung-soo
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.13 no.1
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    • pp.237-252
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    • 2000
  • Pressure sore is an area of ulceration and necrosis of the skin and underlying tissues usually occuring over the bony prominences of the body after prolonged or often repeated pressure. We reviewed and summarized the published articles and treatise on the treatment of pressure sore. The results were as follows : 1. Pressure sore occur due to prolonged or often repeated pressure. So it is better than decubitus ulcer that is called pressure sore. 2. The most common lesions of pressure sore are sacrum, ischial tuberosity, greater trochanter. 3. The cause of pressure sore are change of comprehension. urine, moisture, change of the ability of activity and exercise, shearing force. 4. The elements to influence on wound healing are collagen accumulation velocity, nutrition condition, Vitamine C, copper, iron. oxygen pressure, steroids, cell-toxic drug, radiation. 5. Non-operative treatments are managements of skin such as avoiding consistant pressure, dressing, preventing moisture, understanding patient and protecter, preventing spasm, improvement of systemic nutrition condition. 6. Operative treatements are debridement, suture, skin transplantation, muscle flap and musculaocutaneous flap surgery. Recently V-${\Gammer}$ advancement surgery in use of muscle and musculocutaneous flap is generally maded. 7. Complications of post-operation are wound rupture, infection, disappearance of transmitted skin, necrosis of flaps.

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A Clinical Study on the Effects of the Aromatherapy for Hypertension (향기요법의 혈압 강하 효과에 대한 임상연구)

  • Jang, Hyun-Ho;Min, Sang-Jun;Yang, Hee-Suk;Lyu, Yeoung-Su;Lee, Geon-Mok;Kang, Hyung-Won
    • Journal of Oriental Neuropsychiatry
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    • v.13 no.1
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    • pp.3-18
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    • 2002
  • Hypertension excessively affects national health is the basic disease that causes death and disablement after the middle-aged. Therefore, The detection and control of hypertension is essential to health care. In general, It is known that the systolic blood pressure should be below 140mmHg, the diastolic blood pressure should be below 90mmHg. Presently, the treatment of hypertension is mostly taking anti-hypertension drug, diet and stability. but Taking anti-hypertension drug has such side effects as depression. and that, We were making a study of various treatments of hypertension. In a course of hypertension study, We applied aromatherapy to the control of hypertension. Aromatherapy is the practice of using of volate plant oils including essential oils, for psychological and physical well-being. Essential oils are drawn into the body by the sense smell not only does the aroma of the true plant stimulate the brain to the trigger a positive effect, but supply physical benefits also. In Europe and North America, The study and development of aromatherapy is lively in progress. In the control of hypertension, We applied Lavender, Majoram, Ylang-Ylang to forty-two hypertensive patients. After aromatherapy for controlling hypertension. We measured the changes of the systolic blood pressure & the diastolic blood pressure of patients by time. As the result of above study, We identified the significance of blood pressure down by aromatherapy.

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A Case report of Hypertension Controlled with Weight-loss in Stroke Patient (단기간의 체중감량을 통한 뇌경색 환자의 고혈압 치험 1례)

  • Eom, Tae-Min;Oh, Jeong-Min;Choi, Ko-Eun;Heo, Jong-Won;Kim, Yoon-Sik;Seol, In-Chan;Yoo, Ho-Ryong
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.15 no.1
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    • pp.97-105
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    • 2014
  • Although hypertension doesn't kill itself, its complications can be deadly: increased risk of heart attack and stroke. So hypertension is often called the silent killer, and this is why controlled hypertension is so important. A 51 year-old female stroke patient was diagnosed with hypertension 10 years ago. Since then, though western medication have been used to control her hypertension, it was ineffective. As we know, obesity can cause high blood pressure, so we try weight-loss as alternative way to her hypertension drug. After discharge from hospital, she reduce her weight by 10kg and more by diet only. And her blood pressure became decreased steadily. As maintaining her decreased weight, her blood pressure is now relatively stable without taking any medication. In this case, we recognised that weight-loss by diet could be effective instead of taking hypertension drug for obesity patient who has high blood pressure.

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Study on Basic Performance Test of Electroosmotic Pump with Porous Glass Slit. (다공성 유리 슬릿 EO펌프 기초 성능 측정 연구)

  • Seo, Sang-Tae;Park, Cheol-Woo
    • 한국가시화정보학회:학술대회논문집
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    • 2007.11a
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    • pp.59-62
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    • 2007
  • The basic concept and preliminary performance results of a miniaturized electroosmotic (EO) pump with diaphragms were included in the present study. The separation of an electroosmotic pumping liquid from a drug using diaphragms is mainly to have a freedom in choosing an electroosmotic pumping liquid and to achieve the optimal drug delivery, and, preferably its precise control. We performed maximum flow rate, maximum pressure, and maximum current measurements with and without diaphragm designs. As a result, the effect of diaphragms on pump performance at the maximum condition is small. However, the presence of diaphragms does not allow indefinite continuous pumping.

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A Study of Prescription Analysis on Patients with Ischemic Heart Disease and Evaluation of Antihypertensive Drug Use in General Hospital (종합병원 허혈성 심장질환 환자의 항고혈압약제 사용 현황 및 평가)

  • Moon, Kyoung-Sil;Song, Hyun-Ju;Sohn, Uy-Dong
    • YAKHAK HOEJI
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    • v.51 no.5
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    • pp.336-342
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    • 2007
  • Treatment of hypertension is important in reducing death and attack rates by Ischemic heart disease (IHD). The purposes of this study are to investigate recent prescriptions for patients with IHD and to evaluate antihypertensive drug use. On the basis of the guidelines proposed by Seventh Report of the Joint National Committee on prevention, detection, evaluation, and treatment of high blood pressure, we analyzed prescriptions of antihypertensive drugs for patients with IHD. It is necessary to set up new guideline for appropriate treatment to lower death and attack rates for patients with IHD.

Controlled Release of Drugs from Reservoir Type Devices Coated with Porous Polyurethane Membranes (다공성 폴리우레탄으로 피막된 Reservoir형 약물 조절 방출 시스템)

  • Kim, Kil-Soo;Lee, Seung-Jin
    • Journal of Pharmaceutical Investigation
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    • v.23 no.4
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    • pp.207-211
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    • 1993
  • Reservoir type devices were designed for long-term implantable drug delivery system. The reservoir type device was prepared with the polymethacrylic acid gel coated with polyurethane membrane. Release controlling agent (RCA) were employed to control drug release from devices via generation of micropores in the membranes. The polyurethane membrane functioned as a rate controlling barrier. The drug release pattern of hydrogel demonstrated zero order kinetics. The release rate of drugs could be regulated by varying hydrophobicity/hydrophilicity and content of the RCA, as well as the thickness of the polyurethane membrane. The release of drugs from this system was governed by pore mechanism via simple diffusion and osmotic pressure.

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Influence of Ribosomal Protein L39-L in the Drug Resistance Mechanisms of Lacrimal Gland Adenoid Cystic Carcinoma Cells

  • Ye, Qing;Ding, Shao-Feng;Wang, Zhi-An;Feng, Jie;Tan, Wen-Bin
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.12
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    • pp.4995-5000
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    • 2014
  • Background: Cancer constitutes a key pressure on public health regardless of the economy state in different countries. As a kind of highly malignant epithelial tumor, lacrimal gland adenoid cystic carcinoma can occur in any part of the body, such as salivary gland, submandibular gland, trachea, lung, breast, skin and lacrimal gland. Chemotherapy is one of the key treatment techniques, but drug resistance, especially MDR, seriously blunts its effects. As an element of the 60S large ribosomal subunit, the ribosomal protein L39-L gene appears to be documented specifically in the human testis and many human cancer samples of different origins. Materials and Methods: Total RNA of cultured drug-resistant and susceptible lacrimal gland adenoid cystic carcinoma cells was seperated, and real time quantitative RT-PCR were used to reveal transcription differences between amycin resistant and susceptible strains of lacrimal gland adenoid cystic carcinoma cells. Viability assays were used to present the amycin resistance difference in a RPL39-L transfected lacrimal gland adenoid cystic carcinoma cell line as compared to control vector and null-transfected lacrimal gland adenoid cystic carcinoma cell lines. Results: The ribosomal protein L39-L transcription level was 6.5-fold higher in the drug-resistant human lacrimal gland adenoid cystic carcinoma cell line than in the susceptible cell line by quantitative RT-PCR analysis. The ribosomal protein L39-L transfected cells revealed enhanced drug resistance compared to plasmid vector-transfected or null-transfected cells as determined by methyl tritiated thymidine (3H-TdR) incorporation. Conclusions: The ribosomal protein L39-L gene could possibly have influence on the drug resistance mechanism of lacrimal gland adenoid cystic carcinoma cells.