• Title/Summary/Keyword: Severe injury

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2-Chloroethylethyl Sulfide Induces Apoptosis and Necrosis in Thymocytes

  • Hur, Gyeung-Haeng;Kim, Yun-Bae;Shin, Sung-Ho
    • BMB Reports
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    • v.31 no.2
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    • pp.183-188
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    • 1998
  • 2-chloroethylethyl sulfide (CEES) is an alkylating agent that readily reacts with a wide variety of biological molecules causing metabolic abnormality. The mechanism of cell death during CEES injury is poorly understood. We have examined the effect of exposure of thymocytes with various concentrations of CEES to determine the pattern of cell death in thymocytes injury induced by CEES. In the present study, we show that two patterns of cell death occurred by either one of two mechanisms: apoptosis and necrosis. Exposure to low level of CEES (100 ${\mu}M$) for 5 h caused an induction of apoptosis on thymocytes, as identified by the following criteria: DNA fragmentation visualized by the characteristic "ladder" pattern was observed upon agarose gel electrophoresis and morphological features were revealed by microscopical observations. In contrast, exposure to high levels of CEES (500 ${\mu}M$) induce necrotic features such as cell lysis. Thus, depending on the concentrations, CEES can result in either apoptotic or necrotic cell damage. Our findings suggest that thymocytes which are not killed directly, but merely injured by low levels of CEES, are able to activate an internally-programmed cell death mechanism, whereas thymocytes receiving severe damages apparently can not.

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The Effects of Stellate Ganglion Block for Constipation in the Spinal Cord Injured Patients -Report of 2 Cases- (척수손상환자의 변비에 있어서 성상신경절 차단의 효과 -2예 보고-)

  • Yang, Nae-Yun;Moon, Dong-Eon;Suh, Jae-Hyun
    • The Korean Journal of Pain
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    • v.7 no.2
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    • pp.254-257
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    • 1994
  • In the patients having constipation or irritable bowel syndrome, stellate ganglion block is commonly used in many pain clinics because of its excellent effects. But in the case of patients having spinal cord injury complain constipation, its management is very difficult and there is no report about the effects of stellate ganglion block in this case. We experieced good results that stellate ganglion block was very effective in the patients having spinal cord injury complaining severe constipation and other symptoms.

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Immobilization-induced rhabdomyolysis patients with peripheral neuropathy: clinical, laboratory and imaging findings

  • Seok, Jung Im;Lee, In Hee;Ahn, Ki Sung;Kang, Gun Woo;Lee, Je Wan;Kwak, Sanggyu
    • Annals of Clinical Neurophysiology
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    • v.22 no.1
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    • pp.19-23
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    • 2020
  • Background: Peripheral nerve injury rarely occurs in patients with rhabdomyolysis. Based on our experience and previous reports, we consider prolonged immobilization a risk factor for the development of peripheral neuropathy in rhabdomyolysis patients. Methods: This study analyzed 28 patients with rhabdomyolysis due to prolonged immobilization. We analyzed their demographic and laboratory data, clinical and imaging findings, and outcomes, and compared these factors between patients with and without neuropathy. Results: Seven of the 28 patients had peripheral neuropathy, including sciatic neuropathy or lumbosacral plexopathy. Compared to those without neuropathy, the patients with neuropathy were younger (p = 0.02), had higher peak creatine kinase (CK) levels (p = 0.02), had higher muscle uptake in bone scans (p = 0.03), and more frequently exhibited abnormal muscle findings in computed tomography (CT) (p = 0.004). Conclusions: Patients with prolonged immobilization-induced rhabdomyolysis and neuropathy had higher CK levels, increased uptake on bone scans, and more-frequent abnormal muscles on CT than those without neuropathy. These findings indicate that peripheral neuropathy is more likely to develop in patients with severe muscle injury.

Brain Death and Kidney Transplantation in Dogs (개의 뇌사와 신장이식)

  • 우흥명;권오경
    • Journal of Veterinary Clinics
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    • v.18 no.4
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    • pp.358-362
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    • 2001
  • Brain dead (BD) patients remain the largest source of solid organs for transplantation. BD has shown to decrease graft function and survival in rodent models. The aim of this study was to evaluate how brain death affects graft viability in the donor and kidney tolerance to cold preservation as assessed by survival in a canine transplantation. 13 Beagle dogs were used for the study. Brain death was induced by the sudden inflation of a subdural balloon catheter with continuous monitoring of arterial blood pressure and eletroencephalographic activity (n=3). Sixteen hours after conformation of brain death, kidney graft were retrieved (n=6). Non-BD donors served as controls (n=4). All kidneys were flushed with University of Wisconsin (UW) solution and preserved for 24 hours at 4$^{\circ}C$ before transplantation. Recipient survival rates, serum creatinine level were analyzed. Brain death induced the well-known Cushing reaction with a severe increase in blood pressure and tachycardia. Thereafter, cardiac function returned progressively to baseline within 8 hours and remained stable until the end of the experiment. All of dogs in both group transplanted were survived until 7 days (100%), and the kidneys showed functional early rejection at 8.3$\pm$0.5 days and 8.5$\pm$0.5 days after transplantation, in BD and allograft group, respectively. BD kidneys were functionally similar to control kidneys for 7 days after transplantated. Brain death has no deleterious effect on preservation injury and survival of dog kidney transplantation, although it induces changes in hemodynamic parameters. This study reveals that kidneys from BD donors do not exhibit more ischemia reperfusion injury, and support good early function and survival.

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A Case of Toxic Shock Syndrome Caused by Methicillin-resistant Staphylococcus aureus(MRSA) Following a Burn Injury (화상 후 속발한 메티실린 내성 포도알균에 의한 독성 쇼크 증후군 1례)

  • Choi, Jin Hyoung;Choi, Jae Hong;Kim, Dae Il;Kim, Jae Seok;Choi, Eun Hwa
    • Pediatric Infection and Vaccine
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    • v.16 no.2
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    • pp.205-209
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    • 2009
  • Staphylococcal toxic shock syndrome (TSS) is a severe systemic illness caused by toxins produced by Staphylococcus aureus. We report a case of staphylococcal TSS in a 16 month-old boy who presented with high fever, vomiting, skin rash, and shock after a burn injury. He was managed with intravenous vancomycin, fresh frozen plasma, and intravenous immunoglobulin. Methicillin-resistant S. aureus (MRSA) was isolated from the burn wound site and anterior nostril of the patient. In addition, the MRSA isolate was genetically characterized.

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Ethane Evolution in Cucumber Plants by Air Pollutants in Relation to Plants Injury (대기오염 물질 처리에 의한 오이 장해와 에탄 생성)

  • Bae, Gong-Young
    • Korean Journal of Environmental Agriculture
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    • v.17 no.2
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    • pp.127-131
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    • 1998
  • Ethane was measured to know whether active oxyzens may induce phytoxicity in stressedcucumber plant.The time course of the increase in ethane evolution was the same as that of the increase of visible injury in all treatments except $SO_2$ treatment.This result showed that air pollutants-induced plant damages were closely related to ethane evolution.And evolution of ethane was more increased in combined stress than singly one,suggesting that phytotoxicity was more severe in complex sterss.Also, evolution of ethane was enhanced in the light condition and scavengers of active oxygen were inhibited,showing that plant damage that plant damage were cause by active oxygens.

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L- Arginine as a dietary supplement and its role in protection from disease and metabolism

  • BEERAM, Eswari
    • The Korean Journal of Food & Health Convergence
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    • v.5 no.4
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    • pp.25-28
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    • 2019
  • Now a days problem in health has become common. So, instead of curing them, prevention through dietary supplements has proven to be useful. In the case of patients who have already developed the disease atleast relieving pain and suffer is a challenging thing. In this context L- arginine is doing better compared to other essential aminoacids up to some extent. Arginine was found to reduce the pain associated with pulmonary hypertension foun to be associated with sickle cell anaemia. It also reduces the reperfusion injury after ischemia, trauma and shock. Some of the drugs with L-arginine as component are under clinical trials and hope to be available in the market soon. Severe preeclampsia is characterised by headaches, blurred vision, and inability to have high photovision, nausea and vomiting. L-Arginine along with Vit C and E are given as medical food to the patients and decrease in condition symptoms is the project now under phase II clinical trial. However the role of arginine in ameolirating preeclampsia symptoms is uncertain except with that of hypertension. Arginine is used to treat pain in sickle cell anaemia, lung damage, reperfusion injury, Trauma and shock but should be excluded during sepsis.

Pseudo-Aneurysm in Internal Maxillary Artery Caused by Radiofrequency Ablation: Literature Review with a Case Report

  • Yang, Hyun-Woo;Oh, Ji-Hyun;Nam, Ok-Hyung;Lee, Chunui
    • Journal of Oral Medicine and Pain
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    • v.45 no.2
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    • pp.44-47
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    • 2020
  • The case of pseudo-aneurysm of internal maxillary artery (IMA) in oral and maxillofacial region is known to be very rare. The etiology of this case was regarded as IMA injury by radiofrequency ablation (RFA) and such incidence was not reported previously. One case of false aneurysm in the IMA was referred from local dental clinic to our department. Left facial swelling was observed with severe trismus immediately after radiofrequency procedure for masseteric nerve block in local dental clinic. Despite of medication and surgical intervention, the swelling did not subside and there was massive bleeding and pulsation on one of the follow ups. The traumatic vascular disorder was suspected and finally diagnosed with angiography and treated by embolization procedure. RFA targeting masseteric nerve or trigeminal ganglion may cause traumatic injury to adjacent anatomic structures such as IMA, resulting in pseudo-aneurysm. Clinicians must be aware of potential damages of RFA. Angiography enables the solid diagnosis for pseudo-aneurysm, and selective embolization can be optimum treatment method.

A case of deep neck infection resulting from intubation-induced hypopharyngeal injury (기관내 삽관으로 발생한 하인두 천공에 기인한 심경부 감염 1례)

  • Kim, Min-Soo;Seo, Hyung-Seok;Lim, Hye-Jin;Jung, Jae-Ho;Lee, Kang-Jin;Kang, Jae-Goo
    • Korean Journal of Bronchoesophagology
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    • v.14 no.2
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    • pp.57-63
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    • 2008
  • Hypopharyngeal perforation secondary to tracheal intubation is rare, but may result in severe airway complications that include retropharyngeal abscess, pneumothorax, pneumonia, mediastinitis and death. The most common site of hypopharyngeal perforation is the pyriform sinus and the region of the cricopharyngeus muscle. We report a 62-year old man with intubation-induced hypopharyngeal injury presenting as deep neck infection. The patient presented with dyspnea and pain on the neck. Neck CT scan identified fluid and air collection on the neck from the hyoid bone to the thoracic inlet level. Despite of delayed diagnosis, we successfully operated him by using strap muscle myofascial transposition flap. The patient was followed up for 3 months without any complications.

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Effects of Astragali Radix and Polygalae Radix on Cerebral Ischemic and Reperfused Injury (황기와 원지분획의 뇌허혈에 관한 약효연구)

  • Han, Suk-Hee;Park, Jin-Hyuk;Kim, Jin-Sook;Lee, Sun-Mee
    • YAKHAK HOEJI
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    • v.44 no.4
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    • pp.371-377
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    • 2000
  • In order to investigate the pharmacological properties of fractions of Astragali Radix and Polygalae Radix, the effects of the fractions on cerebral ischemia and subsequent reperfusion were studied. Brain ischemia was induced by bilateral common carotid artery occlusion in mongolian gerbil. Brains were recirculated for 30 mins after the 20 min occlusion. Methanol and butanol fractions of Astragali Radix and Polygalae Radix were administered orally 2 hrs before common carotid artery occlusion. Histological observations showed that brain ischemia induced severe brain damage evidenced by the presence of necrotic foci, edema and hemorrhage. This injury was prevented by the methanol fraction and butanol fraction of Polygalae Radix. The level of ATP in brain tissue significantly decreased in ischemic gerbils. This decrease was prevented by the pretreatment with butanol fraction of Polygalae Radix. In contrast, the levels of lactate and lipid peroxide were both elevated in ischemic gerbils. This elevation was inhibited by the pretreatments with methanol fraction and butanol fraction of Polygalae Radix. Our findings suggest that the Polygalae Radix improves ischemia-induced brain damage.

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