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Immunomodulatory effect of a purified peptide fraction isolated from Mesobuthus eupeus scorpion venom on astrocytoma cell line (1321N1) 从真蝎毒中分离的纯化肽部分对星形细胞瘤细胞系(1321N1)的免疫调节作用
Pub Date : 2020-06-01 DOI: 10.22038/APJMT.2020.16387
B. Masihipour, A. Z. Mirakabadi, R. Hosseini, M. Tebianian
Objective(s): Multiple Sclerosis is a central nervous system disease which belongs to the category of autoimmune diseases. The prevalence of this disease in Iran is approaching the European level. Astrocyte cells are nerve tissues that regulate the immune system activity by secreting various cytokines such as IL- 17.  The aim of this study was partial purification of toxin from M.eupeus scorpion venom that has immunomodulatory effect on astrocyte cell line (1321N1) Materials and Methods: In the present study, purified crude venom of M.eupeus scorpion. Size exclusion and reverse-phase high-performance liquid chromatography was used for fractionation. The fractional molecular weight was determined by Using SDS and Tricine electrophoresis, Astrocyte cells (1321N1) were selected as functional cells in testing the immunomodulatory effect of venom. The viability of cells were determined by MTT and LDH assays. Astrocyte cells were activated by lipopolysaccharide and the release of interleukin-17 in activated cells was estimated using ELISA kit. Results:  fraction 331 (F331) from RP-HPLC contain the purified peptide with molecular weight of about 4500 Dalton. When activated cells exposed to purified peptide the rate of interleukin-17 release was found to be 85 pg/ml which is almost similar to un-activated cells (78 pg/ml). However in activated cells by LPS without treatment with purified peptide the rate of IL-17 release was found to be 147 pg/ml which was significantly (p <0.05) higher than control group.   Conclusion: The purified peptide (F331) from   venom of Mesobouthus eupeus can inactivate the astrocyte 1321N1 cells activated by LPS as indicated by decreased secretion of IL-17 from the cells.
目的:多发性硬化症是一种中枢神经系统疾病,属于自身免疫性疾病。这种疾病在伊朗的流行率正在接近欧洲的水平。星形胶质细胞是通过分泌IL-17等多种细胞因子来调节免疫系统活性的神经组织。本研究的目的是部分纯化对星形胶质细胞系(1321N1)具有免疫调节作用的真蝎毒毒素。材料和方法:本研究纯化了真蝎毒粗品。采用尺寸排阻和反相高效液相色谱法进行分馏。采用SDS和Tricine电泳测定其分子量,选择星形胶质细胞(1321N1)作为功能细胞,检测毒液的免疫调节作用。MTT法和LDH法测定细胞活力。脂多糖激活星形细胞,并使用ELISA试剂盒估计活化细胞中白细胞介素17的释放。结果:RP-HPLC组分331(F331)含有分子量约4500道尔顿的纯化肽。当活化的细胞暴露于纯化的肽时,发现白细胞介素17的释放速率为85pg/ml,这几乎类似于未活化的细胞(78pg/ml)。然而,在未经纯化肽处理的LPS活化的细胞中,发现IL-17的释放速率为147pg/ml,显著高于对照组(p<0.05)。结论:纯化的真毒毒肽(F331)可使LPS激活的星形胶质细胞1321N1失活,表明其分泌的IL-17减少。
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引用次数: 0
Severe rhabdomyolysis induced by cocaine contaminated with caffeine: a case report 咖啡因污染可卡因致严重横纹肌溶解症1例
Pub Date : 2020-06-01 DOI: 10.22038/APJMT.2020.16391
Maria A Monotya-Giraldo, Edna C Chinchilla, Luisa F. Díaz, Andres F Zuluaga
Background: Global consumption of illicit substances has increased, and cocaine dependence remains an important public health problem. Currently, the use of adulterants can overlap or exacerbate the symptoms of cocaine intoxication hindering the diagnosis. This case shows how the morbidity and mortality of inhaled cocaine consumption adulterated with caffeine can increase by generating unusual severe rhabdomyolysis and rare serious complications. Case presentation: 31-year-old Hispanic male, single, construction worker, generally healthy except for the past history of inhaled cocaine hydrochloride dependence, who after three days of cocaine snorting presented profound altered state of consciousness and multiple complications,   liver damage, kidney failure and severe rhabdomyolysis (CPK=657625 U/L, troponin=3.6, potassium=6 mEq/L). After fourty-five days in the ICU, the patient stayed for two more months hospitalized for the treatment of healthcare-associated infections before being discharged without sequelae. An analysis of the powdered substance consumed by the patient confirms the presence of caffeine as cocaine adulterant. None other additional substance was detected in the sample. Discussion. This clinical case describes serious complications presented by the excessive consumption of cocaine adulterated with caffeine. Notably, most of the complications herein described were of unexpected severity and duration for an acute cocaine intoxication.  This case can suggest that in patients suffering from cocaine who have severe rhabdomyolysis, a simultaneous consumption of adulterants such as caffeine should be considered.
背景:全球非法药物消费量增加,可卡因依赖仍然是一个重要的公共卫生问题。目前,使用掺杂物可能会使可卡因中毒的症状重叠或加剧,从而阻碍诊断。这一案例表明,摄入掺有咖啡因的可卡因会导致罕见的严重横纹肌溶解症和罕见的严重并发症,从而增加发病率和死亡率。病例介绍:31岁西班牙裔男性,单身,建筑工人,除既往有吸入性盐酸可卡因依赖史外,总体健康。吸食可卡因三天后,他出现意识状态严重改变和多种并发症,肝损伤、肾衰竭和严重横纹肌溶解症(CPK=657625U/L,肌钙蛋白=3.6,钾=6mEq/L)。在重症监护室住了四十五天后,患者又住院两个月,接受医疗相关感染的治疗,然后出院,没有留下后遗症。对患者食用的粉状物质的分析证实,咖啡因是可卡因掺杂物。样品中未检测到其他物质。讨论该临床病例描述了过量食用掺有咖啡因的可卡因所引起的严重并发症。值得注意的是,本文描述的大多数并发症的严重程度和持续时间都是急性可卡因中毒。这种情况可能表明,对于患有严重横纹肌溶解症的可卡因患者,应考虑同时食用咖啡因等掺杂物。
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引用次数: 0
Acute fulminant hepatic failure due to colchicine – a rare manifestation of Gloriosa superba poisoning. 秋水仙碱引起的急性暴发性肝衰竭——一种罕见的超级球藻中毒表现。
Pub Date : 2020-06-01 DOI: 10.22038/APJMT.2020.16389
D. Anandhi, K. Raju, Balaji Shah Bds, Anuusha Ss
Background: Patients presenting to Emergency department following consumption of toxic substances is not an uncommon phenomenon globally. It becomes essential for the Emergency physicians to have in-depth knowledge of all the toxic products available in their locality. In rural parts of South India, the most common method of poisoning is by consumption of pesticides, followed by plant poisons, because of its easy availability. Gloriosa superba is an important medicinal plant growing in several parts of Southeast Asia. All parts of this plant contain several alkaloids including colchicine with the highest concentration in seeds and tubers. Acute intoxication following ingestion of G. superba is indistinguishable from colchicine overdose. Clinical presentation: The symptoms of intoxication can be classified in three phases. Phase 1:(2-24 hours) early gastrointestinal symptoms mimicking gastroenteritis, volume depletion, hypotension, peripheral leucocytosis; Phase 2:(24 to 72 hours) mental status changes, oliguric renal failure, hematopoietic problems, electrolyte imbalance, acid-base disturbance, shock, bone marrow suppression, liver failure, ARDS, arrhythmias, cardiovascular collapse, encephalopathy and neuromuscular involvement; and Phase 3:(1-3 weeks) Recovery typically occurs within few weeks of ingestion but with rebound leucocytosis and alopecia. Case report: We present a patient who ingested Gloriosa superba tubers with suicidal intent and developed acute fulminant liver failure a week after ingestion. Two weeks later, he also developed alopecia. Liver functions gradually improved and normalized after three weeks of hospitalisation. He was provided supportive treatment and he improved remarkably. At discharge, total bilirubin was 1.3 mg/dL, direct bilirubin 0.6 mg/dL, serum urea 15mg/dL and serum creatinine 0.9 mg/dL. On follow-up visits, alopecia showed an improving trend. Conclusion: Colchicine exerts a multiorgan toxicity. Acute fulminant hepatic failure can be a life threatening manifestation of Gloriosa superba poisoning. Hepatic failure can be due to colchicine induced direct hepatic injury with cytolysis. Management is essentially supportive with anecdotal reports showing benefit in plasmapheresis.
背景:患者在服用有毒物质后到急诊科就诊在全球范围内并不罕见。急诊医生必须深入了解当地可用的所有有毒产品。在南印度的农村地区,最常见的中毒方法是食用杀虫剂,其次是植物毒素,因为它很容易获得。木荷是一种重要的药用植物,生长在东南亚的几个地区。这种植物的所有部分都含有几种生物碱,包括在种子和块茎中浓度最高的秋水仙碱。摄入木荷后的急性中毒与秋水仙碱过量难以区分。临床表现:中毒症状可分为三个阶段。第1阶段:(2-24小时)早期胃肠道症状,类似肠胃炎、容量耗竭、低血压、外周白细胞增多;第2阶段:(24至72小时)精神状态变化、少尿性肾功能衰竭、造血问题、电解质失衡、酸碱紊乱、休克、骨髓抑制、肝功能衰竭、ARDS、心律失常、心血管衰竭、脑病和神经肌肉受累;第3阶段:(1-3周)通常在摄入后几周内恢复,但伴有白细胞增多和脱发。病例报告:我们介绍了一名患者,他摄入了具有自杀意图的超级Gloriosa块茎,并在摄入后一周出现急性暴发性肝衰竭。两周后,他也出现了脱发。住院三周后,肝功能逐渐改善并恢复正常。他接受了支持性治疗,病情明显好转。出院时,总胆红素为1.3 mg/dL,直接胆红素为0.6 mg/dL、血清尿素为15 mg/dL和血清肌酐为0.9 mg/dL。在随访中,脱发表现出改善的趋势。结论:秋水仙碱具有多器官毒性。急性暴发性肝功能衰竭可能是超级球藻中毒的一种危及生命的表现。肝衰竭可能是由于秋水仙碱诱导的直接肝损伤和细胞溶解。管理层基本上支持传闻报告显示血浆置换的益处。
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引用次数: 0
Pulmonary hemorrhage and the management following Russell’s viper (Daboia russelii) envenoming in Sri Lanka 斯里兰卡Russell’s viper(Daboia russelii)中毒后肺出血及处理
Pub Date : 2020-06-01 DOI: 10.22038/APJMT.2020.16390
R. Rathnayaka, P. Ranathunga, S. Kularatne
Background: Patients presenting to Emergency department following consumption of toxic substances is not an uncommon phenomenon globally. It becomes essential for the Emergency physicians to have in-depth knowledge of all the toxic products available in their locality. In rural parts of South India, the most common method of poisoning is by consumption of pesticides, followed by plant poisons, because of its easy availability. Gloriosa superba is an important medicinal plant growing in several parts of Southeast Asia. All parts of this plant contain several alkaloids including colchicine with the highest concentration in seeds and tubers. Acute intoxication following ingestion of G. superba is indistinguishable from colchicine overdose. Clinical presentation: The symptoms of intoxication can be classified in three phases. Phase 1:(2-24 hours) early gastrointestinal symptoms mimicking gastroenteritis, volume depletion, hypotension, peripheral leucocytosis; Phase 2:(24 to 72 hours) mental status changes, oliguric renal failure, hematopoietic problems, electrolyte imbalance, acid-base disturbance, shock, bone marrow suppression, liver failure, ARDS, arrhythmias, cardiovascular collapse, encephalopathy and neuromuscular involvement; and Phase 3:(1-3 weeks) Recovery typically occurs within few weeks of ingestion but with rebound leucocytosis and alopecia. Case report: We present a patient who ingested Gloriosa superba tubers with suicidal intent and developed acute fulminant liver failure a week after ingestion. Two weeks later, he also developed alopecia. Liver functions gradually improved and normalized after three weeks of hospitalisation. He was provided supportive treatment and he improved remarkably. At discharge, total bilirubin was 1.3 mg/dL, direct bilirubin 0.6 mg/dL, serum urea 15mg/dL and serum creatinine 0.9 mg/dL. On follow-up visits, alopecia showed an improving trend. Conclusion: Colchicine exerts a multiorgan toxicity. Acute fulminant hepatic failure can be a life threatening manifestation of Gloriosa superba poisoning. Hepatic failure can be due to colchicine induced direct hepatic injury with cytolysis. Management is essentially supportive with anecdotal reports showing benefit in plasmapheresis.
背景:患者在服用有毒物质后到急诊科就诊在全球范围内并不罕见。急诊医生必须深入了解当地可用的所有有毒产品。在南印度的农村地区,最常见的中毒方法是食用杀虫剂,其次是植物毒素,因为它很容易获得。木荷是一种重要的药用植物,生长在东南亚的几个地区。这种植物的所有部分都含有几种生物碱,包括在种子和块茎中浓度最高的秋水仙碱。摄入木荷后的急性中毒与秋水仙碱过量难以区分。临床表现:中毒症状可分为三个阶段。第1阶段:(2-24小时)早期胃肠道症状,类似肠胃炎、容量耗竭、低血压、外周白细胞增多;第2阶段:(24至72小时)精神状态变化、少尿性肾功能衰竭、造血问题、电解质失衡、酸碱紊乱、休克、骨髓抑制、肝功能衰竭、ARDS、心律失常、心血管衰竭、脑病和神经肌肉受累;第3阶段:(1-3周)通常在摄入后几周内恢复,但伴有白细胞增多和脱发。病例报告:我们介绍了一名患者,他摄入了具有自杀意图的超级Gloriosa块茎,并在摄入后一周出现急性暴发性肝衰竭。两周后,他也出现了脱发。住院三周后,肝功能逐渐改善并恢复正常。他接受了支持性治疗,病情明显好转。出院时,总胆红素为1.3 mg/dL,直接胆红素为0.6 mg/dL、血清尿素为15 mg/dL和血清肌酐为0.9 mg/dL。在随访中,脱发表现出改善的趋势。结论:秋水仙碱具有多器官毒性。急性暴发性肝功能衰竭可能是超级球藻中毒的一种危及生命的表现。肝衰竭可能是由于秋水仙碱诱导的直接肝损伤和细胞溶解。管理层基本上支持传闻报告显示血浆置换的益处。
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引用次数: 0
Blood Lead Level and Toxicity in Opium Smokers; a Comparison between inhalation and Ingestion of Opium 吸食鸦片者血铅水平及其毒性研究吸入与摄入鸦片的比较
Pub Date : 2020-04-09 DOI: 10.22038/APJMT.2020.41936.1268
A. Aghabiklooei, Pouyan Alinia
Objectives: During the recent years, risk of lead poisoning has increased in Iranian’s opium users. A few researches showed that the most common route were ingestion of lead contaminated opium in these patients. However, some use of inhaler opium and data on lead poisoning through this route is scarce. The aim of the current study was to determine lead poisoning in opium users who consume it inhalational. Methods: In this case-control study, blood lead level (BLL) and clinical Lead poisoning assessed and compared between pure inhalational and pure ingestionally chronic opium users and healthy controls. Results: There were totally 90 cases, 30 patients in each group (pure inhaler opium users, pure oral opium users, and control group). In chronic opium users (case group), mean age of the patients was 48.91±13.14 yeas (range; 22 to 79 years). Eighty-four (85%) patients were male (Male to Female ratio; 5.6/1). Mean BLL was 10.6 ±4.2, 126.1 ±52µg/dl, in inhalational opium users and ingestional users, respectively (P=0.001). The mean of BLL in healthy control group was and 4.78 µg/dl ± 1.83. Conclusions: In contrast to chronic ingestion of opium, the probability of absorption of lead via lungs is low when opium used by smoking and inhalation route. So, lead toxicity is not common in acute or chronic inhalational users of lead-contaminated opium.
目的:近年来,伊朗鸦片使用者铅中毒的风险有所增加。一些研究表明,这些患者最常见的途径是摄入铅污染的鸦片。然而,鸦片吸入器的一些使用以及通过这一途径铅中毒的数据很少。本研究的目的是确定吸入鸦片的鸦片使用者的铅中毒情况。方法:在本病例对照研究中,评估并比较纯吸入和纯摄入慢性鸦片使用者与健康对照组的血铅水平(BLL)和临床铅中毒。结果:共90例,每组30例(纯吸入器鸦片使用者、纯口服鸦片使用者和对照组)。在慢性鸦片使用者(病例组)中,患者的平均年龄为48.91±13.14岁(范围:22-79岁)。84名(85%)患者为男性(男女比例:5.6/1)。吸入鸦片使用者和摄入鸦片使用者的平均BLL分别为10.6±4.2、126.1±52µg/dl(P=0.001)。健康对照组的平均BLL为4.78µg/dl±1.83。结论:与长期摄入鸦片相比,通过吸烟和吸入途径使用鸦片时,通过肺部吸收铅的可能性较低。因此,铅中毒在急性或慢性吸入铅污染鸦片的使用者中并不常见。
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引用次数: 0
Evaluation of the effects of chronic exposure to organophosphorus pesticides on thyroid function 长期接触有机磷农药对甲状腺功能影响的评价
Pub Date : 2020-04-09 DOI: 10.22038/APJMT.2020.47601.1291
Mohammad amin Rashidi, H. A. Mahabadi, A. Khavanin
Background: Organophosphorus (OP) compounds are considered among the most common insecticides. The major mechanism of organophosphorus toxicants includes inhibiting cholinesterase enzyme. organophosphorus toxicants cause impaired thyroid hormones through affecting different parts of the hypothalamus-pituitary-thyroid axis. The aim of this study is to determine the effects of chronic exposure to organophosphorus pesticides on thyroid function. Methods: The present descriptive-analytical study was conducted cross-sectionally on male workers employed in a factory producing OP as the exposure group as well as the personnel of the administrative department of the same factory as the control group chosen through census method. According to Helsinki declaration, 5 ml of venous blood was collected, and the activity of TT3, TT4, FT3, FT4, and TSH hormones was measured through CLIA method, while the activity of serum cholinesterase enzyme (CHE) was measured through colorimetry. Results: T-test indicated that there was no significant difference in the mean of activity of hormones and enzyme studied between exposure and control groups (p>0.05). Nevertheless, the activity of TT3, TT4, FT3, FT4 hormones, and CHE enzyme was lower in the exposure group, while that of TSH was higher than in the control group. Pearson correlation test indicated that there was no significant correlation between the activity of all studied hormones and CHE enzyme (p>0.05). Conclusions: In the present study, the workers employed in the factory producing OP did not suffer thyroid disorders. Further, OP did not have a considerable effect on the activity of CHE enzyme.
背景:有机磷化合物被认为是最常见的杀虫剂之一。有机磷毒物的主要作用机制包括抑制胆碱酯酶。有机磷毒物通过影响下丘脑-垂体-甲状腺轴的不同部位导致甲状腺激素受损。本研究的目的是确定长期接触有机磷农药对甲状腺功能的影响。方法:采用横断面描述性分析方法,以某生产OP工厂的男性工人为暴露组,以普查法选择同一工厂的行政部门人员为对照组。根据赫尔辛基宣言,采集静脉血5 ml, CLIA法测定TT3、TT4、FT3、FT4、TSH激素活性,比色法测定血清胆碱酯酶(CHE)活性。结果:经t检验,暴露组与对照组的激素和酶活性平均值无显著差异(p < 0.05)。暴露组TT3、TT4、FT3、FT4激素和CHE酶的活性低于对照组,TSH的活性高于对照组。Pearson相关检验显示,各激素活性与CHE酶的相关性均不显著(p < 0.05)。结论:在本研究中,在生产OP的工厂工作的工人没有患甲状腺疾病。此外,OP对CHE酶活性没有明显影响。
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引用次数: 6
EVALUATION OF LEVELS OF POTASSIUM BROMATE AND SOME HEAVY METALS IN BREAD AND WHEAT FLOUR SOLD IN ABA METROPOLIS 阿坝市市售面包、小麦粉中溴酸钾及部分重金属含量评价
Pub Date : 2020-04-09 DOI: 10.22038/APJMT.2020.40809.1257
G. Akuodor, L. A. Irogbeyi, I. Nweke, P. Unekwe, A. Ebere
Background: Bread is a baked staple food made from wheat flour and is widely consumed in all parts of Nigeria among all socio-economic groups.Method: 32 different brands of bread with 12 different brands of wheat-flour sold in Aba metropolis, South Eastern Nigeria were evaluated for both potassium bromate and some heavy metals. Bromate determination was carried out using spectrophotometric method while heavy metals were done by the flame atomic absorption spectrophotometer. Results: The results of the analysis revealed that all the bread samples contained potassium bromate at concentrations above the permissible limit allowed by the US FDA while the concentrations in wheat flour samples were within the acceptable limit with ranges from 0.27 ± 0.04 – 3.78 ± 0.26 mg/kg and 00-1.52 ± 0.28 mg/kg respectively. The values of heavy metals in bread ranged as follows Zn (3.22 ± 0.05 – 7.25 ± 0.24 mg/kg), Pb (0.05 ± 0.01 – 0.45 ± 0.02 mg/kg), Mn (44.28 ± 0.5 – 78.25 ± 1.24 mg/kg), Cu (0.31 ± 0.04 – 0.49 ± 0.12 mg/kg) and Co (0.04 ± 0.01 – 0.24 ± 0.03 mg/kg) while in wheat flour, the ranges were as follows; Zn (3.85 ± 0.04 – 5.03 ± 0.10 mg/kg), Pb (0.06 ± 0.02 – 0.15 ± 0.04 mg/kg), Mn (47.30 ± 0.38 – 70.20 ± 1.02 mg/kg), Cu (0.36 ± 0.02 – 0.46 ± 0.13 mg/kg) and Co (0.07 ± 0.01 – 0.21 ± 0.03 mg/kg). Conclusion: The values of these metals are within the permissible limits except Pb and Mn which were above the normal limits that can be detrimental to human health.
背景:面包是一种由小麦粉制成的烘焙主食,在尼日利亚各地的所有社会经济群体中广泛消费。方法:对尼日利亚东南部阿巴市销售的32种不同品牌的面包和12种不同品牌的小麦粉进行溴酸钾和部分重金属的检测。溴酸盐的测定采用分光光度法,重金属的测定采用火焰原子吸收分光光度法。结果:分析结果显示,面包样品中溴酸钾含量均超过美国FDA允许限量,小麦粉样品中溴酸钾含量在0.27±0.04 ~ 3.78±0.26 mg/kg和00 ~ 1.52±0.28 mg/kg的可接受限量范围内。面包中重金属含量分别为Zn(3.22±0.05 ~ 7.25±0.24 mg/kg)、Pb(0.05±0.01 ~ 0.45±0.02 mg/kg)、Mn(44.28±0.5 ~ 78.25±1.24 mg/kg)、Cu(0.31±0.04 ~ 0.49±0.12 mg/kg)和Co(0.04±0.01 ~ 0.24±0.03 mg/kg),面粉中重金属含量分别为Zn(3.22±0.05 ~ 7.25±0.24 mg/kg)和Co(0.04±0.01 ~ 0.24±0.03 mg/kg);Zn(3.85±0.04 ~ 5.03±0.10 mg/kg)、Pb(0.06±0.02 ~ 0.15±0.04 mg/kg)、Mn(47.30±0.38 ~ 70.20±1.02 mg/kg)、Cu(0.36±0.02 ~ 0.46±0.13 mg/kg)、Co(0.07±0.01 ~ 0.21±0.03 mg/kg)。结论:除铅、锰超标对人体健康有害外,其余金属均在允许范围内。
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引用次数: 3
Aluminum Phosphide Poisoning and Blast in Gastric Tube a Rare Phenomenon- A Case Report 胃管内磷化铝中毒并爆炸为罕见现象1例
Pub Date : 2020-04-09 DOI: 10.22038/APJMT.2020.41679.1264
Mohd. Kaleem Khan, Faiz Ahmad, A. Mahmood, Jamal Azmat
Suicide by poisoning is the second most common cause of death by suicide (27.9%) as per The National Crime Records Bureau (NCRB) India in 2015.Aluminum phosphide (ALP) is the leading agricultural poison used to commit suicide as where its availability is not properly regulated. Aluminum phosphide (ALP) is a highly toxic solid fumigant pesticide, rodenticide and insecticide. It is commonly used as outdoor and indoor pesticide in developing countries like India, Pakistan, Srilanka and Iran because it is a cheap, effective, free from toxic residue and do not alter the viability of seeds. Aluminium Phosphide (ALP) is a highly toxic fumigant which is used commonly as an indoor pesticide in agriculture based industry for storage of grains. ALP on ingestion reacts with a gastric water and release phosphine gas, which is highly flammable, and very toxic in nature. Over the last few decades ALP has emerged as an agent of choice being used as suicidal poisoning in a country where it is readily available. The high mortality rate is due to severe mitochondrial dysfunction leading to disruption of cellular respiration, causing tissue hypoxia and organ dysfunction. Despite long research no specific antidote could be developed and the treatment remained supportive. Spontaneous ignition of phosphine (PH3) is a rare but very peculiar phenomenon reported in the case of aluminium phosphide poisoning. Here we share our experience in a case of phosphine (PH3) poisoning, which presented with spontaneous ignition and blast during treatment which caught the attention of local and national media in India,
根据2015年印度国家犯罪记录局(NCRB)的数据,中毒自杀是第二大自杀死亡原因(27.9%)。磷化铝(ALP)是用于自杀的主要农业毒药,因为它的可用性没有得到适当的管制。磷化铝(ALP)是一种剧毒的固体熏蒸农药、灭鼠剂和杀虫剂。在印度、巴基斯坦、斯里兰卡和伊朗等发展中国家,它通常被用作室外和室内杀虫剂,因为它便宜、有效、没有有毒残留物,而且不会改变种子的生存能力。磷化铝(ALP)是一种剧毒熏蒸剂,在农业基础工业中普遍用作室内农药,用于粮食储存。ALP在摄入时与胃水发生反应,释放出高度易燃、剧毒的磷化氢气体。在过去的几十年里,ALP已经成为自杀中毒的首选药物,在一些国家,ALP很容易获得。高死亡率是由于严重的线粒体功能障碍导致细胞呼吸中断,导致组织缺氧和器官功能障碍。尽管进行了长期的研究,但没有开发出特定的解毒剂,治疗方法仍然是支持性的。磷化氢(PH3)自燃是一种罕见但非常特殊的现象,报道了在磷化铝中毒的情况下。在这里,我们分享我们在一起磷化氢(PH3)中毒案件中的经验,该案件在治疗过程中出现自燃和爆炸,引起了印度当地和全国媒体的关注。
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引用次数: 1
Geospatial Analysis of Acute Poisonings in Mashhad, Iran: 2013 伊朗马什哈德急性中毒的地理空间分析:2013
Pub Date : 2020-04-09 DOI: 10.22038/APJMT.2020.40119.1253
A. Hadianfar, M. Shakeri, S. Saffari, B. Dadpour, H. Aghajani, R. Afshari
Background: acute poisonings are medical emergencies and significant causes of death. We aimed to study the spatial distribution of poisoned patients and its risk factors in Mashhad, Iran.Methods: This was a retrospective cross-sectional study of patients treated at the Medical Toxicology Center, Imam Reza Hospital, Mashhad, Iran, which is the only referral center in northeastern of Iran in 2013. Negative binomial and Poisson approach via generalized linear mixed models were performed to investigate the association between socio-demographic and environmental characteristics with the number of reported cases of poisoning.Results: A total of 5064 poisoned patients (52% females) were included. Most of the poisoned patients were within the age group of 20-29 years old (41.4%). Drugs were the most common cause of poisonings (64.6%). The local test of spatial autocorrelation (Moran’s I) confirms that the poisoning has cluster pattern in Mashhad. Positive relationships were found between poisoning frequency, population density (RR= 1.00011; 95% CI 1.0001-1.00013), the number of health centers (RR= 1.10; 95% CI 1.03-1.17) and percent with less educational background (RR=1.49; 95% CI 1.32-1.68).Conclusion: Drug poisoning was the most common causes of poisoning in this study. Moreover, socio- and environmental characteristics were associated with poisoning frequency in different areas, which could be vital for policy and decision makers when planning. It can be helpful to develop prevention strategies by identifying the underlying cause of disease in high prevalence rate areas.
背景:急性中毒是医疗紧急事件,也是造成死亡的重要原因。我们旨在研究伊朗马什哈德中毒患者的空间分布及其危险因素。方法:这是一项对2013年在伊朗东北部唯一的转诊中心伊玛目礼萨医院医学毒理学中心接受治疗的患者的回顾性横断面研究。通过广义线性混合模型进行负二项和泊松方法,以调查社会人口和环境特征与报告的中毒病例数之间的关系。结果:共纳入5064名中毒患者(52%为女性)。大多数中毒患者年龄在20-29岁之间(41.4%)。药物是最常见的中毒原因(64.6%)。空间自相关局部检验(Moran’s I)证实,马什哈德中毒具有集群模式。中毒频率、人口密度(RR=1.00011;95%CI 1.0001-1.00013)、卫生中心数量(RR=1.10;95%CI 1.03-1.17)和低学历人群比例(RR=1.49;95%CI 1.32-1.68)呈正相关。结论:药物中毒是本研究中最常见的中毒原因。此外,社会和环境特征与不同地区的中毒频率有关,这对政策制定者和决策者在规划时至关重要。通过确定高流行率地区疾病的根本原因,制定预防策略是有帮助的。
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引用次数: 1
Cytotoxicity of Chitosan Derived from Shrimp for Bone Scaffold on Adipose Tissue-Derived Mesenchymal Stem Cells (ASCs) 虾壳聚糖骨支架对脂肪组织间充质干细胞的细胞毒性
Pub Date : 2020-04-09 DOI: 10.22038/APJMT.2020.41342.1260
D. Wahjuningrum, Ari Subijanto, Anny Kuntu Taqiya, Fepta Dea Anggini, A. Hasib, Latief Mooduto, F. Puteri
Background : This study is aimed at observing the cytotoxicity of chitosan material with Adipose Tissue-Derived Mesenchymal Stem Cells (ASCs) obtained from human. Methods : The material was served in 2 varieties among other raw and scaffold chitosan to prepare the bone scaffold candidate. Cytotoxicity was tested in vitro, using MTT assay standard protocol with ASCs as the cultured cell. The chitosan material was obtained from shrimps and processed into granules as raw chitosan. The raw chitosan was then processed into bone scaffold using frozen dried method. ASCs was gotten from the human tissue of a patient in a hospital with several criteria and certain indications. It was then cultured and put into the microplate. Afterwards, both scaffold and raw chitosan were added with Dulbecco's modified Eagle medium as the medium, and MTT solution as the reagent test. Both varieties of chitosan were later compared to the control cell which contained ASCs and the control medium which had blanks filled with cells. Results : The result indicated that scaffold chitosan comes with no toxic effect, unlike raw chitosan. Although, the raw chitosan displayed remarkably higher levels of cytotoxicity (P
背景:本研究旨在观察壳聚糖材料对人脂肪组织源间充质干细胞(ASCs)的细胞毒性。方法:将该材料分为两种不同的原料和支架壳聚糖制备候选骨支架。以ASCs为培养细胞,采用MTT检测标准方案进行体外细胞毒性试验。以虾为原料制备壳聚糖,并将其加工成颗粒状。然后用冷冻干燥法将生壳聚糖加工成骨支架。ASCs是从医院的一个病人的人体组织中获得的,有几个标准和某些适应症。然后将其培养并放入微孔板。然后,以Dulbecco's改性Eagle培养基为培养基,MTT溶液为试剂,分别加入支架和生壳聚糖。然后将这两种壳聚糖与含有ASCs的对照细胞和空白填充细胞的对照培养基进行比较。结果:支架壳聚糖与生壳聚糖不同,没有毒性作用。虽然,生壳聚糖显示出显著较高的细胞毒性(P
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引用次数: 2
期刊
Asia Pacific Journal of Medical Toxicology
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