• Title/Summary/Keyword: Thermal pain

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A Theoretical Review on the Natural Family Planning Method (자연적 가족계획 방법에 대한 이론적 고찰)

  • Park, Shin-Ae
    • Research in Community and Public Health Nursing
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    • v.7 no.2
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    • pp.410-419
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    • 1996
  • This study was reviewed from 1000 articles related to family planning from 1970 to 1990 and 20 articles associated with natural family planning from 1980 until the present. The purpose of natural family planning(NFP) is to identify the time ovulation of women themselves, to have intercourse with periodic abstinence, and to deliver a healthy child. The ultimate goal of NFP is to promote the family's health. The NFP method is described as periodic abstinence of intercourse to avoid pregnancy by identifying the ovulation time in the menstration cycle. Clinical symptoms and signs of reflection underlying changes in Estrogen and Progesterone are the change of basal body temperature, the change of cervical mucus and cervix, abdominal pain and breast tenderness. The types of NFP are the calender rthythm method, basal body temperature methods, cervical mucus method, symptothermal method, cyclo-thermal method and home based ovulation test kits. Recently the cyclo-thermal method involved. It is calendar rhythm method applied to B.B.T. For the cervical mucus method, when the estrogen level in the blood concentration is increased, the mucus begins to excrete, the amount of moist mucus increases while the mucus is clear, slippery, and smooth. For 3 days, this timing can be considered contraception. Fertility is at a maximum on the day mucus appears, abstinence for 3 days is a type of contraception. Sexual intercourse on a maximum day of mucus maximizes pregnancy potential. But, the contraception depends on the practice of a perfect rule. For basal body temperature methods, at ovulation time, the temperature increases $0.2^{\circ}C-0.5^{\circ}C$. Through the review of literature a high temperature above $0.2^{\circ}C$ for 3 days indicates that the previous 6 day period was ovulation and fertilization. The Symptothermal method is used to determine the prediction of ovulation through the observation of mucus excretion, high temperature, the change of cervical mucus, low abdominal pain, vaginal discharge, and breast change. Home based ovulation test kits are cervico-vaginal fluid aspiration, test a digital electric thermometer, body fluid(blood, saliva, urine) test kits, They are on the market. However, research on the contraception method is still in progress. For pregnancy it is still too early to use home based ovulation test kits because of deficit of reliability and simplicity more research on the technology is needed. It is suggested that NFP methods be included in nursing curriculum in order to educate NFP users how to effectively use NFP methods. Furthermore, this study has implications for the dissemination of NFP methods in terms of Korean policies of family planning and the support of community welfare agences.

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Oxytocin produces thermal analgesia via vasopressin-1a receptor by modulating TRPV1 and potassium conductance in the dorsal root ganglion neurons

  • Han, Rafael Taeho;Kim, Han-Byul;Kim, Young-Beom;Choi, Kyungmin;Park, Gi Yeon;Lee, Pa Reum;Lee, JaeHee;Kim, Hye young;Park, Chul-Kyu;Kang, Youngnam;Oh, Seog Bae;Na, Heung Sik
    • The Korean Journal of Physiology and Pharmacology
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    • v.22 no.2
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    • pp.173-182
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    • 2018
  • Recent studies have provided several lines of evidence that peripheral administration of oxytocin induces analgesia in human and rodents. However, the exact underlying mechanism of analgesia still remains elusive. In the present study, we aimed to identify which receptor could mediate the analgesic effect of intraperitoneal injection of oxytocin and its cellular mechanisms in thermal pain behavior. We found that oxytocin-induced analgesia could be reversed by $d(CH_2)_5[Tyr(Me)^2,Dab^5]$ AVP, a vasopressin-1a (V1a) receptor antagonist, but not by $desGly-NH_2-d(CH_2)_5[D-Tyr^2,Thr^4]OVT$, an oxytocin receptor antagonist. Single cell RT-PCR analysis revealed that V1a receptor, compared to oxytocin, vasopressin-1b and vasopressin-2 receptors, was more profoundly expressed in dorsal root ganglion (DRG) neurons and the expression of V1a receptor was predominant in transient receptor potential vanilloid 1 (TRPV1)-expressing DRG neurons. Fura-2 based calcium imaging experiments showed that capsaicin-induced calcium transient was significantly inhibited by oxytocin and that such inhibition was reversed by V1a receptor antagonist. Additionally, whole cell patch clamp recording demonstrated that oxytocin significantly increased potassium conductance via V1a receptor in DRG neurons. Taken together, our findings suggest that analgesic effects produced by peripheral administration of oxytocin were attributable to the activation of V1a receptor, resulting in reduction of TRPV1 activity and enhancement of potassium conductance in DRG neurons.

Identification and quantification of oleanane triterpenoid saponins and potential analgesic and anti-inflammatory activities from the roots and rhizomes of Panax stipuleanatus

  • Shu, Pan-Pan;Li, Lu-Xi;He, Qin-Min;Pan, Jun;Li, Xiao-Lei;Zhu, Min;Yang, Ye;Qu, Yuan
    • Journal of Ginseng Research
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    • v.45 no.2
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    • pp.305-315
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    • 2021
  • Background: Panax stipuleanatus represents a folk medicine for treatment of inflammation. However, lack of experimental data does not confirm its function. This article aims to investigate the analgesic and anti-inflammatory activities of triterpenoid saponins isolated from P. stipuleanatus. Methods: The chemical characterization of P. stipuleanatus allowed the identification and quantitation of two major compounds. Analgesic effects of triterpenoid saponins were evaluated in two models of thermal- and chemical-stimulated acute pain. Anti-inflammatory effects of triterpenoid saponins were also evaluated using four models of acetic acid-induced vascular permeability, xylene-induced ear edema, carrageenan-induced paw edema, and cotton pellet-induced granuloma in mice. Results: Two triterpenoid saponins of stipuleanosides R1 (SP-R1) and R2 (SP-R2) were isolated and identified from P. stipuleanatus. The results showed that SP-R1 and SP-R2 significantly increased the latency time to thermal pain in the hot plate test and reduced the writhing response in the acetic acid-induced writhing test. SP-R1 and SP-R2 caused a significant decrease in vascular permeability, ear edema, paw edema, and granuloma formation in inflammatory models. Further studies showed that the levels of inflammatory mediators, nitric oxide, malondialdehyde, tumor necrosis factor-α, and interleukin 6 in paw tissues were downregulated by SP-R1 and SP-R2. In addition, the rational harvest of three- to five-year-old P. stipuleanatus was preferable to obtain a higher level of triterpenoid saponins. SP-R2 showed the highest content in P. stipuleanatus, which had potential as a chemical marker for quality control of P. stipuleanatus. Conclusion: This study provides important basic information about utilization of P. stipuleanatus resources for production of active triterpenoid saponins.

The Effect of Shinbaro and Bee Venom Pharmacopuncture in Treating Lumbar Disc Herniations (요추간판 탈출증에 대한 신바로약침과 봉약침의 치료효과 비교 연구)

  • Park, Ok Ju;Kim, Sul Gi;Lee, Jeong Ju;Lee, Sang Mi;Kim, Seong Joung;Cho, Nam Geun
    • Journal of Acupuncture Research
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    • v.30 no.5
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    • pp.41-50
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    • 2013
  • Objectives : This study was performed to compare the effects of Shinbaro pharmacopuncture therapy and bee venom pharmacopuncture therapy in lumbar disc herniation Methods : We compared treatment efficacy of 12 patients with Shinbaro pharmacopuncture therapy and 10 patients with bee venom pharmacopuncture therapy, all of whom were diagnosed with lumbar disc herniation using computed tomography(CT) or magnetic resonance imaging(MRI). We performed a retrospective comparison and analysis during the course of 21 days since admission. To evaluate the treatment efficacy, we recorded the temperatures of the opposite back, hip, and legs with visual analog scale(VAS, back and legs), pain rating scale(PRS), Oswestry disability index(ODI) and digital infrared thermal imaging(DITI) based on patients' medical records. Results : Both treatments were effective in reducing pain and improving functions for lumbar disc herniation patients in terms of VAS, PRS, ODI, DITI. Shinbaro pharmacopuncture group showed slightly better results than the bee venom pharmacopuncture group, but the difference was not significant. Conclusions : For the treatment of lumbar disc herniation, it is suggested that Shinbaro pharmacopuncture therapy is thought to be as effective as bee venom pharmacopuncture therapy without side effects, although further study would be necessary.

Trigeminal Neuralgia like Pain Behavior Following Compression of the Rat Trigeminal Ganglion

  • Yang, Gwi-Y.;Mun, Jun-H.;Park, Yoon-Y.;Ahn, Dong-K.
    • International Journal of Oral Biology
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    • v.34 no.3
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    • pp.157-164
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    • 2009
  • We recently described a novel animal model of trigeminal neuropathic pain following compression of the trigeminal ganglion (Ahn et al., 2009). In our present study, we adapted this model using male Sprague-Dawley rats weighing between 250-260 g and then analyzed the behavioral responses of these animals following modified chronic compression of the trigeminal ganglion. Under anesthesia, the rats were mounted onto a stereotaxic frame and a 4% agar solution ($10{\mu}L$) was injected in each case on the dorsal surface of the trigeminal ganglion to achieve compression without causing injury. In the control group, the rats received a sham operation without agar injection. Air-puff, acetone, and heat tests were performed at 3 days before and at 3, 7, 10, 14, 17, 21, 24, 30, 40, 55, and 70 days after surgery. Compression of the trigeminal ganglion produced nociceptive behavior in the trigeminal territory. Mechanical allodynia was established within 3 days and recovered to preoperative levels at approximately 60 days following compression. Mechanical hyperalgesia was also observed at 7 days after compression and persisted until the postoperative day 40. Cold hypersensitivity was established within 3 days after compression and lasted beyond postoperative day 55. In contrast, compression of the trigeminal ganglion did not produce any significant thermal hypersensitivity when compared with the sham operated group. These findings suggest that compression of the trigeminal ganglion without any injury produces prolonged nociceptive behavior and that our rat model is a useful system for further analysis of trigeminal neuralgia.

Percutaneous Radiofrequency Thermocoagulation Under Fluoroscopic Image-Guidance for Idiopathic Trigeminal Neuralgia

  • Son, Byung-Chul;Kim, Hyung-Suk;Kim, Il-Sup;Yang, Seung-Ho;Lee, Sang-Won
    • Journal of Korean Neurosurgical Society
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    • v.50 no.5
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    • pp.446-452
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    • 2011
  • Objective : We retrospectively investigated the long-term results of percutaneous radiofrequency thermocoagulation (RFT) using fluoroscopic image-guidance for treatment of trigeminal neuralgia. Methods : A total of 38 patients diagnosed and treated with RFT as an idiopathic trigeminal neuralgia were investigated. To minimize the risks related to conventional technique based on cutaneous landmarks, and to eliminate the need to frequent reposition of cannula, we adopted a technique of image-guided fluoroscopic cannulation of the foramen ovale. To minimize sensory complication following thermal lesion, our target response was a generation of a lesion with mild to moderate hypalgesia rather than dense hypalgesia. Results : The immediate pain-relief was achieved in all patients underwent RFT. With mean duration of follow-up of 38.2 months (range,12-72), 11 (28.9%) experienced recurrence of pain. The mean timing of recurrence was 26.1 months (range,12-46). A 42.7% recurrence rate was estimated by Kaplan-Meier analysis for the 38 patients at 46 months; 20.2% within 2 years, 29.1% within 3 years. In the long-term, 27 patients (71%) and 6 patients (15.8%) showed Barrow Neurological Institute (BNI) score I and BNI score II responses. Three (7.9%) patients was assessed as BNI score III, 2 patients (5.3%) showed BNI score IV response. As a complication, troublesome dysesthesia occurred in 3 of 38 patients (7.9%), however, there was no permanent cranial nerve palsy or morbidity. Conclusion : These results indicates that RFT under fluoroscopic image-guided cannulation of foramen ovale is a safe, effective, and reliable means of treating trigeminal neuralgia.

Study on the Thermal Protective Performance Measurements of Fire Fighter's Protective Clothing for Low Level Radiant Heat Exposures (저열유속 조건의 복사열 노출에 따른 소방보호복의 열보호성능 측정에 관한 연구)

  • Lee, Jun-Kyoung;Bang, Young-Jun;Bang, Chang-Hoon;Kwon, Jung-Suk
    • Fire Science and Engineering
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    • v.28 no.2
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    • pp.1-8
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    • 2014
  • Despite advancements in the development of synthetic fibers and materials that provide better insulation, fire burn injuries remain a significant issue. To ensure adequate protection, clothing and equipment must be selected on the basis of performance. There are different standards like ISO standards applicable to each of the various types of clothing used by fire fighters. But, in most cases, the tests are performed in the conditions of high heat flux exposure, the clothing material can be destroyed easily. Thus the effective way to investigate the protective performance for the low (radiant) heat flux conditions should be needed. Therefore improved RPP (Radiant Protective Performance) test method based on the onset of pain burn injury was suggested. Experiments were performed to verify the proposed method with current protective clothing for fire fighters and the transient heat transfer characteristics were identified, also. Moreover, several protective performance indices were acquired from experimental results to analyze their relations.

The Safety and Analgesic Effect of Datura Flos Pharmacopuncture in Sprague-Dawley Rats

  • Jun, Seungah;Lee, Yun Kyu;Lee, Bong Hyo;Kim, Jae Soo;Lee, Hyun-Jong
    • Journal of Acupuncture Research
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    • v.36 no.3
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    • pp.147-153
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    • 2019
  • Background: The aim of this study was to investigate the safety and analgesic effects of Datura Flos pharmacopuncture (DFP). Methods: The analgesic effects of DFP were assessed using mechanical (hot plate), chemical (formalin test), and thermal (von Frey filament test) pain tests. Forty male Sprague Dawley rats were assigned randomly into DFP (75 mg/kg, 150 mg/kg), lidocaine 0.5%, or normal saline group for treatment on Kl3. Gross pathology, histopathology, biochemistry and hematology were performed. Results: In the hot plate test, DFP at a high dose (HDDFP; 150 mg/kg) produced a significant analgesic effect, at 10 and 20-minutes post injection (p < 0.01). Low dose DFP (LDDFP; 75 mg/kg) also showed an analgesic effect at 10 minutes post injection (p < 0.01). In the formalin test, HDDFP produced an analgesic effect, for 0-10 and 10-20 minutes (p < 0.01) post treatment, whereas LDDFP showed analgesic effects between 10-20 minutes (p < 0.05). In the von Frey filament test, DF-H produced an analgesic effect, 10 (p < 0.01) and 20 minutes post treatment (p < 0.05). LDDFP showed analgesic effect at 10 minutes (p < 0.05). In the acupuncture response test, HDDFP produced an analgesic effect at 10 minutes post treatment (p < 0.05). DF-H did not cause any anatomical changes to the liver or kidney and there were no abnormalities in biochemistry or hematology. Conclusion: DF-H was not toxic and provided short term analgesia, suggesting it may be useful in the management of pain.

A Case Study of Buerger's Disease of Soeumin with Lower Extremity Coldness (하지 냉증을 호소하는 소음인 버거씨병 치험 1례)

  • Song Choi;Su-min Jeong;So-eun Son;Jeong-won Byun;Sae-rom Choi;Hye-sun Park
    • The Journal of Internal Korean Medicine
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    • v.44 no.4
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    • pp.741-750
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    • 2023
  • Objectives: This study investigated the effects of Korean medicine treatments on Buerger's disease. Methods: From December 27, 2022, to January 16, 2023, we treated Soeumin patients with Buerger's disease admitted to a hospital specializing in Korean medicine. The patient's symptoms included feelings of coldness in the lower extremities, feelings of dullness, and stabbing pain. For treatment, Korean medicine treatments, such as acupuncture, moxibustion, and herbal medications (Sogyeonghwalhyeol-tang granules and Gwangyebujaijung-tang-gami) were administered. The patient's improvement was evaluated using the numerical rating scale (NRS) every day. Lower extremity and foot temperatures were evaluated using digital infrared thermal imaging (DITI). Results: Through the treatment regimen, the patient's NRS scores decreased, and lower extremity and foot temperatures increased. Conclusions: Korean medicine treatments for cold lower extremities, feelings of dullness, and stabbing pain caused by Buerger's disease are potentially effective.

Effects of Beraprost Sodium Evaluated by Digital Infrared Thermal Imaging in Diabetic Patients with Peripheral Arterial Disease (당뇨병성 말초혈관병증 환자에게 Beraprost Sodium이 미치는 영향에 대한 적외선 체열검사를 통한 연구)

  • Park, Hyun Woo;Soh, Jae Wan;Park, Seong Hyeon;Jeong, Jae Jung
    • Journal of Korean Foot and Ankle Society
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    • v.22 no.3
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    • pp.105-110
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    • 2018
  • Purpose: This study examined the effects of beraprost sodium on digital infrared thermal images in patients with peripheral arterial disease caused by type 2 diabetes mellitus. Materials and Methods: Twenty-five diabetic patients with peripheral arterial disease were treated with beraprost sodium in a prospective, multicenter, cohort study from February 2013 to December 2014. Beraprost sodium ($40{\mu}g$) was administered orally 3 times daily ($120{\mu}g/day$) for 6 months. The visual analogue scale (VAS) and digital infrared thermal imaging (DITI) were performed to compare the blood flow improvement between before and after dosing. Results: Among the 25 patients included in the evaluation, 22 patients completed the study. A significant increase in body temperature was observed in the front and left side, particularly in the plantar side in DITI compared to that before and after administration. An increase in body temperature was observed at the frontal part from $28.1^{\circ}C{\pm}2.3^{\circ}C$ to $29.1^{\circ}C{\pm}2.1^{\circ}C$ (p=0.021), at the left side from $27.8^{\circ}C{\pm}2.4^{\circ}C$ to $28.6^{\circ}C{\pm}1.9^{\circ}C$ (p=0.028), at the plantar part at $24.0^{\circ}C{\pm}1.5^{\circ}C$, and at the plantar part at $27.1^{\circ}C{\pm}2.4^{\circ}C$ (p<0.01). The VAS decreased significantly from $5.4{\pm}1.3$ to $2.7{\pm}2.0$ after 6 months of treatment (p<0.01). Conclusion: Beraprost sodium is a safe and easy-to use oral medication for diabetes peripheral arterial disease. It can be expected to increase the blood flow and decrease the lower extremity pain statistically after being taken for 6 months.