• The Korean Journal of Physiology and Pharmacology
• /
• v.8 no.1
• /
• pp.21-25
• /
• 2004

People in tropics have the ability to tolerate heat by residential permanence in the tropics. Previously, we have shown that African and Thai subjects who lived for whole their lives in only their respective countries sweat less under hot conditions than South Koreans who also lived whole their lives in Korea. The difference in sweating responses was attributed to the dissimilar central and peripheral sweating mechanisms operating in people from both groups. In the present study, acetylcholine (ACh), the primary transmitter for the sudomotor functions, was iontophoretically administered to South Koreans and Africans to determine the characteristic sudorific responses of their acclimatized biologic make-up to their respective environments. Using quantitative sudomotor axon reflex test (QSART), direct (DIR) and axon reflex (AXR) responses were evaluated. The findings revealed that the sweat onset-time among South Koreans was 0.91 min earlier than among Africans (P<0.01). The axon reflex sweat volume of nicotine receptor activity AXR(1) and sweat volume of muscarinic receptor activity DIR(2) among South Koreans were 79% and 53% greater (P<0.01), respectively. These results indicate that the reduced thermal sweating among Africans is at least in part attributed to the diminished sensitivity of sweat glands to ACh.

• The Korean Journal of Physiology and Pharmacology
• /
• v.11 no.6
• /
• pp.233-237
• /
• 2007

Tropical natives (TROP) are capable of tolerating tropical heat because of their long-term adaptation to tropical environments. When exposed to heat stress, these natives tend to respond with lower sweat output, which is generally thought to be the result of heat acclimatization. The main objective of this study was to clarify central mechanisms inherent to suppressed thermal sweating in tropical natives (Malaysians) by comparing their sweating responses to those of temperate native (TEMP) (Koreans). This experiment was conducted in a thermoneutral climatic chamber ($24{\pm}0.5^{\circ}C,\;40{\pm}3%$ relative humidity). Heat loads were applied to each subject by the immersion of their lower legs in a hot water bath ($43^{\circ}C$ for 30 min). Sweat onset-time and sweat volume were compared between TROP and TEMP. The sweat onset-times on four selected points on the body ranged from 10.25 to 13.47 min in TEMP subjects, and from 16.24 to 17.83 min in TROP subjects (p<0.001). The local sweat volumes at the same sites ranged from 4.30 to $9.74 mg/cm^2$ in TEMP subjects, and from between 1.80 to $4.40mg/cm^2$ in TROP subjects (p<0.001). These results demonstrated a significant difference between TROP and TEMP subjects with regard to the manner in which they regulate their body temperatures when exposed to heat loads, and verified that long-term thermal adaptation blunts sweating sensitivities.

• Journal of Chest Surgery
• /
• v.37 no.1
• /
• pp.64-71
• /
• 2004

Background: Video-assisted sympathicotomy is a safe and effective method for the treatment of essential hyperhidrosis with immediate symptomatic improvement. However, this is offset by the occurrence of a high rate of side-effects, such as embarrassing compensatory hyperhidrosis. Therefore, by comparing and assessing the relationship between temperature change measured by DITI (digital infrared thermographic imaging) and clinical results according to the level and extent of sympathicotomy in essential hyperhidrosis. we tried to obtain a more precisely and objectively, the distribution and degree of compensatory sweating by DITI and also for ascertaining the clinical usefulness. Material and Method: From January 2000 to June 2002, the thoracoscopic sympathicotomy was performed in 28 patients suffering from essential hyperhidrosis in Dept. of Thoracic and Cardiovascular Surgery, Wonkwang University Hospital. The patients were divided into four groups, Group I: patients having undergone T2 sympathicotomy, Group II: patients having undergone T3 sympathicotomy, Group III: patients having undergone T3,4 sympathicotomy, and Group IV: patients having undergone T2,3,4 sympathicotomy. The parameters were composed of the satisfaction rate of treatment, the degree of compensatory and plantar sweating, and temperature changes of entire body measured by DITI Result: There was no difference in age and follow-up period among the groups. All of the treated patients obtained satisfactory alleviation of essential hyperhidrosis in immediate postoperative period. However, the rate of long-term satisfaction were 85.8%, 85.8%, 42.9%, and 28.6% in group I, II, III, and IV (p<0.05). More than embarrassing compensatory sweating was present in 14.2%, 14.2%, 57.1%, 71.4% in group I, II, III, and IV (p<0.05) In regard to plantar sweating, decrease in sweating was expressed in each of four groups, but was not significant between groups. An apparent increase of temperature measured by DITI indicated sufficient denervation and predicted long-lasting relief of essential hyperhidrosis and also decrease in temperature of trunk and lower extremity by DITI had correlated well with postoperative satisfaction, and also postoperative compensatory sweating. Conclusion: We suggested that the incidence and degree of compensatory sweating was closely related to the site and the extent of thoracic sympathicotomy. Resection of the lower interganglionic neural fiber of the second thoracic sympathetic ganglion on the third rib is the most practical and minimally invasive treatment than other surgical methods. We were also to anticipated the distribution and degree of compensatory sweating by DITI precisely and objectively and for ascertaining the clinical usefulness.

• Journal of Sasang Constitutional Medicine
• /
• v.17 no.3
• /
• pp.150-155
• /
• 2005

1. Objectives This case is aimed to verify the relation of Soeurnin Mang-yang Syndrome and Cold Syndrome with pseudo-heat syndrome. 2. Methods The patient has high fever, general body sweating, thirst and constipitation is diagnosed as Soeumin Mang-yang Syndrome. Mang-yang Syndrome one of the symptoms in the Exterior Febrile Disease induced from the Kidney affected by Heat in Soeumin(少陰人) marked by spontaneous sweating and fever with chills. This syndrome is similar to Cold syndrome with pseudo-heat symptoms in general symptoms and pathologic process. Therefore, We medicate Doksampalmul-tang to this patient who diagnosed as Soeumin Mang-yang Syndrome. 3. Results and Conclusions The symptoms that the patient has fever, sweating, thirst and constipitation are solved after the medication. This means recovery of Yang-Energy in Kidney and the spleen.

• Journal of Sasang Constitutional Medicine
• /
• v.22 no.2
• /
• pp.16-27
• /
• 2010

1. Backgrounds: There are a lack of comprehensive study on Taeeumin Exterior Heat syndrome diarrhea(表熱證泄瀉). Thus, The author examines the content of various literatures related to Tae-eumin Exterior Heat syndrome diarrhea. 2. Methods: Literature examination is used Lee, Je-ma's writings and Sasang Constitutional Medical doctor's writings. Syndrome examination is used Tae-eumin's study on Syndrome of DonguisusebowonGaboGu-bon("咸山沙村東醫壽世保元甲午舊本") and Donguisusebowon("東醫壽世保元") and treatises of the academic world. 3. Results: and Conclusions: 1) "Profuse sweating and reddish and difficult urination"(汗多而小便赤澁) is regard as Taeeumin Interior Febrile Disease(裏熱病). 2) There is no possibility of a misprint about Taeeumin Exterior Heat syndrome diarrhea. Taeeumin Exterior Heat syndrome diarrhea is engaged in both the Exterior and Interior(表裏俱病). 3) It is difficult to prescribe GalgeunHaegi-Tang(葛根解肌湯) instead of Galgeunnabokja-Tang(葛根蘿葍子湯). 4) Tae-eumin Exterior Heat syndrome diarrhea is formed in the early period and absorbed into Donguisusebowon ("東醫壽世保元") in the latter period. "Profuse sweating and reddish and difficult urination" is estimated to be added in the latter period.

• Fashion & Textile Research Journal
• /
• v.13 no.4
• /
• pp.635-643
• /
• 2011

This study was investigated to evaluate the physiological responses on T-shirts manufactured with selected functional materials by body parts which were selectioned on the distribution of sweating and temperature change. Seven healthy men in twenties were participated in a climate chamber of $27{\pm}0.5^{\circ}C$ and $50{\pm}1%RHC$. Three kinds of T-shirts named 'D1', 'D2' and 'Poly' were used as experimental clothings. Four kinds of functional materials of quick absorbing/drying were used in all section in 'D1', but two kinds of functional materials used partially in 'D2'. 'Poly' T-shirts used only polyester. In an experimental schedule of 90 minutes, which were consisted of 'Rest', twice of 'Exercise' and twice of 'Recovery' periods, the subjects walked on a treadmill with 60% of $VO_2max$. As a physiological responses, the microclimate temperature, surface temperature(skin, clothing) and sweat rate were measured. Temperature regulation was kept well in 'D1' rather than other T-shirts. The quick absorbing/drying T-shirts showed its performance well as the exercise goes on the second half. With these results in mind, 'D1' will be more effective for long hours exercise such as climbing rather than short hours exercise.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.37 no.8
• /
• pp.1095-1106
• /
• 2013

This study evaluated the wear comfort properties of water-vapor-permeable (WVP) garments using a movable sweating thermal manikin. Manikin tests were performed in a climatic chamber (temperature T=20, $35{\pm}0.5^{\circ}C$ and relative humidity $H=50{\pm}10%$) using seven sportswear outfits (a long sleeve shirts and a long pants) made with seven different WVP fabrics. Physiological responses of wear trials could be correlated with measurement parameters of the thermal manikin experiment; subsequently, a regression model that represented a final comfort sensation could be obtained. The regression model developed in this work is based on thermal manikin measurements; consequently, it provides an independent comfort sensation level in a relatively short time at a low cost while maintaining the reproducibility of results. It translates into more actual choices for sportswear manufacturers and sportswear consumers.

• The Korean Journal of Physiology and Pharmacology
• /
• v.10 no.5
• /
• pp.231-234
• /
• 2006

This study was designed to investigate the expression and production of interleukin-1beta $(IL-1{\beta})$ in human peripheral blood of trained runners and untrained controls after temporary moderate intensity exercise. Male long-distance trained runners (TR) and untrained sedentary control subjects (SED) ran for 1 h at 70% of heart rate reserve (HRR). $IL-1{\beta}$ gene and protein expressions were significantly higher in TR than those with SED at all 3 intervals examined independently. Significant increases in total sweat volume and oral temperature were observed after exercise in both groups, however, there were some differences between the groups. We conclude, therefore, that sweating due to exercise is associated with increase of $IL-1{\beta}$ and it is correlated with decrease of oral temperature.

• The Journal of Internal Korean Medicine
• /
• v.41 no.6
• /
• pp.1282-1288
• /
• 2020

Objective: The case study assessed the possibility of improving symptoms by external treatment in a patient complaining of night sweats who could not take oral herbal medicine. Methods: Chinensis galla, Ostreae concha, and Cinnabaris were mixed in a 2:1:1 ratio and applied to CV8 before the patient went to bed. The treatment was removed upon waking and repeated every night. If itchiness and skin redness occurred, the position was changed to 2-3 cm up or down from the navel or application was changed to once every two days. Results: The external treatment eliminated the symptoms of sweating in the arms, legs, chest, and abdomen and reduced sweating in the occipital and neck areas. The sweating was improved to the extent that it no longer interfered with daily life. Conclusions: This case study shows the possibility of using external treatments rather than herbal medicine to treat night sweats.

• The Journal of Internal Korean Medicine
• /
• v.42 no.2
• /
• pp.95-103
• /
• 2021

We report on a Soeumin patient with spontaneous sweating after a lung segmentectomy resulting from aspergillosis. During her inpatient stay, the patient received Soeumin Gwakhyangjunggi-san, Hwanggigyeji-tang, and Seungyangikgi-tang for herbal medication. She also received acupuncture, moxibustion, pharmacopuncture, and cupping therapy. A numeric rating scale (NRS) was used to assess the improvement of symptoms. Sweating was reduced, as reflected by an NRS change from 7 to 0, when the herbal medication changed from Soeumin Gwakhyangjunggi-san to Hwanggigyeji-tang. General weakness and chest discomfort were also relieved after using Hwanggigyeji-tang and Seungyangikgi-tang. These results suggest that Hwanggigyeji-tang and Seungyangikgi-tang are clinically effective for Soeumin patients who are appropriately diagnosed with yang collapse syndrome in the postoperative setting.