Chromatography, Gas ; methods ; Humans ; Toluidines ; blood

Demodex mites are considered part of the normal skin flora. Typically, Demodex is harmless and causes no clinical symptoms. We present a 43-year-old woman with pruritic erythematous plaque and papulopustular eruptions on the right cheek. The patient was treated seborrheic dermatitis in face from several years ago. However, the lesion was aggravated after continuous topical steroid usage for several months at a local clinic. Histological examinations revealed Demodex mites in the follicular ostia with perivascular and perifollicular lymphohistiocytic inflammation. Treatment was initiated with metronidazole at a dose of 250 mg three times per day and then crotamiton ointment once daily. The lesion showed marked improvement after six weeks of treatment with mild residual erythema. The findings presented here indicate that Demodex infestation should be considered in the differential diagnosis of unilateral follicular eruptions of the face.
Adult ; Cheek ; Dermatitis, Seborrheic ; Diagnosis, Differential ; Erythema ; Female ; Humans ; Inflammation ; Metronidazole ; Mites ; Skin ; Toluidines

Crusted (Norwegian) scabies is a clinical variant of human infestation with Sarcoptes scabiei, and is characterized by extensive, heavily crusted skin lesions. It usually affects immunocompromised patients. The diagnosis is commonly missed, and can lead to mismanagement. Here we report a case of crusted scabies misdiagnosed as a cutaneous side reaction due to allopurinol in a 48 year old male patient with acquired perforating dermatosis who had been treated with allopurinol for about 20 weeks. The lesion showed pruritic, excessive hyperkeratotic scaly crusts and fissures on the hands, and on pelvic, genital and inguinal areas. His skin lesions disappeared after treatment with 10% crotamiton cream for 2 weeks.
Allopurinol ; Hand ; Humans ; Immunocompromised Host ; Male ; Sarcoptes scabiei ; Scabies ; Skin ; Skin Diseases ; Toluidines

Acute Disease ; Chemical and Drug Induced Liver Injury ; etiology ; Humans ; Male ; Middle Aged ; Toluidines ; poisoning ; Young Adult

Objective: A method for the determination of acetochlor and its metabolites in urine by liquid chromatography-tandem mass spectrometry (LC-MS/MS) was established. Methods: After cleaned-up by a HLB extraction cartridges, the urine was eluted with 1% acetic acid acetonitrile solution. The target compounds were separated by ACQUITY UPLC®HSS T3 Column (2.1 mm×100 mm×1.8 μm) by using 1% formic acid solution and acetonitrile as mobile phase with gradient elution program, and analyzed in positive electrospray ionization mode by liquid chromatography tandem mass spectrometry. Results: All the target compounds showed good linear relationships in the range of 1-50 μg/L, and the correlation coefficients (r) were higher than 0.997. The recoveries rates at three different spiked levels for all target compounds in blank matrices were 107.6%-129.1%, and the relative standard deviations (RSD) were 1.5%-9.9% (n=6) . The limits of detection and quantitation of the method were 0.04-0.11 μg/L and 0.15-0.42 μg/L, respectively, and target substances were detected in all urine samples from occupational exposure workers to acetochlor. Conclusion: This method is suitable for rapid screening and analysis of acetochlor and metabolites in urine with the advantages of accuracy, rapidity, simplicity, high sensitivity and good specificity.
Acetonitriles ; Chromatography, High Pressure Liquid ; Chromatography, Liquid ; Humans ; Solid Phase Extraction ; Tandem Mass Spectrometry ; Toluidines

PURPOSE: To evaluate of the range and relationship between intraocular pressure (IOP), and central corneal thickness (CCT) in premature infants. METHODS: To investigate the correlation of IOP and CCT with gestational age and body weight, 58 premature infants 37 weeks-old or younger were examined. Under topical anesthesia, IOP was measured with Tono-Pen(R) XL (Medtronic Solan, Jacksonville, FL) and the CCT with pachymeter (SP-2000, TOMEY(R), Japan). The fundus was examined in infants with a risk of retinopathy of prematurity (ROP). RESULTS: Average gestational age of the subjects was 33 weeks and 6 days and body weight was 1506+/-520 grams (mean+/-standard deviation). Forty-five subjects had oxygen therapy, and 10 patients were found to have any one of the stages of ROP. Average IOP was 15.14+/-4.64 mmHg in the right eye and 15.29+/-3.70 mmHg in the left eye. CCT was 594.72+/-74.87 micrometer in the right eye and 599.78+/-74.17 micrometer in the left eye. No statistically significant correlation was found between IOP or CCT and gestational age or body weight. CONCLUSIONS: Gestational age and body weight did not appear to affect IOP or CCT in the gestational age between 26 and 37 weeks. The maturing eye in the neonate is known for fast development in the first year after birth. There are, however, few reports in the literature regarding the changes in dimensions of ocular structures in the premature neonate. These normative values may aid ophthalmologists in assessing IOP and CCT in premature infants.
Anesthesia ; Body Weight ; Diterpenes ; Eye ; Gestational Age ; Humans ; Infant ; Infant, Newborn ; Infant, Premature ; Intraocular Pressure ; Oxygen ; Parturition ; Retinopathy of Prematurity ; Toluidines

PURPOSE: To evaluate of the range and relationship between intraocular pressure (IOP), and central corneal thickness (CCT) in premature infants. METHODS: To investigate the correlation of IOP and CCT with gestational age and body weight, 58 premature infants 37 weeks-old or younger were examined. Under topical anesthesia, IOP was measured with Tono-Pen(R) XL (Medtronic Solan, Jacksonville, FL) and the CCT with pachymeter (SP-2000, TOMEY(R), Japan). The fundus was examined in infants with a risk of retinopathy of prematurity (ROP). RESULTS: Average gestational age of the subjects was 33 weeks and 6 days and body weight was 1506+/-520 grams (mean+/-standard deviation). Forty-five subjects had oxygen therapy, and 10 patients were found to have any one of the stages of ROP. Average IOP was 15.14+/-4.64 mmHg in the right eye and 15.29+/-3.70 mmHg in the left eye. CCT was 594.72+/-74.87 micrometer in the right eye and 599.78+/-74.17 micrometer in the left eye. No statistically significant correlation was found between IOP or CCT and gestational age or body weight. CONCLUSIONS: Gestational age and body weight did not appear to affect IOP or CCT in the gestational age between 26 and 37 weeks. The maturing eye in the neonate is known for fast development in the first year after birth. There are, however, few reports in the literature regarding the changes in dimensions of ocular structures in the premature neonate. These normative values may aid ophthalmologists in assessing IOP and CCT in premature infants.
Anesthesia ; Body Weight ; Diterpenes ; Eye ; Gestational Age ; Humans ; Infant ; Infant, Newborn ; Infant, Premature ; Intraocular Pressure ; Oxygen ; Parturition ; Retinopathy of Prematurity ; Toluidines

MOUTH DISEASES PROSPECTIVE STUDIES BIOPSY STAINS AND STAINING HISTOLOGICAL TECHNICS TOLUIDINES PHENOTHIAZINES SULFUR COMPOUNDS ORGANIC CHEMICALS EARLY DIAGNOSIS DIAGNOSIS TOLONIUM CHLORIDE

Scabies is one of the most common world-wide arthropod-born diseases in both humans and animals caused by the "itch" mite Sarcoptes scabiei. The incidence of scabies has shown a tendency to increase for the last several years in Korea. The previous peak incidence in Korea was between the early 1970s and early 1980s. A substantial part of the cyclic resurgence of scabies has been considered the result of inexperience and indifference of medical doctors toward the disease. The recent resurgence is presumed to be derived from not only indifference of the doctors but also an increase in elderly patients admitted to nursing homes and eldercare hospitals. Scraping using mineral oil for scabies patients is a very simple and effective method for definite diagnosis. A new diagnostic method using a dermoscope is also effective, especially for very young patients. Lindane and crotamiton are two available antiscabietic preparations in Korea. Crotamiton is less effective, while infants and pregnant women should not use lindane. In conclusion, medical personnel should be alert coping with the resurgence of scabies, and it is strongly suggested that other antiscabietic drugs such as permethrin, ivermectin, etc. should be made available for resistant patients in the near future in the Republic of Korea.
Aged ; Animals ; Arthropods ; Female ; Humans ; Incidence ; Infant ; Ivermectin ; Korea ; Lindane ; Mineral Oil ; Mites ; Nursing Homes ; Permethrin ; Pregnant Women ; Republic of Korea ; Sarcoptes scabiei ; Scabies ; Skin ; Skin Diseases ; Toluidines

Amitraz is used as farm-animal insecticide. Its side effects in humans are related to its pharmacological activity on alpha 2-adrenergic receptors. The case describes a previously healthy 46-year-old woman who intentionally ingested approximately 250mL of liquid amitraz. She presented with vomiting, altered mental status, miosis, dry mouth, hypopnea, metabolic and respiratory acidosis, hypotension, hypothermia, polyuria, metabolic acidosis, elevated serum aminotransferase and abdominal distension. Supportive treatments including mechanical ventilation, hydration, dopamine infusion, bicarbonate infusion and gastric decompression resulted in improvement. By hospital day 3, she recovered with resolution of abdominal distension. It is paramount to recognize amitraz poisoning when apesticide-intoxicated patient presets with signs and symptoms consistent with organophosphate intoxicated patients but with greater alpha 2-adrenergic related symptoms such as decreased bowel motility and xerostomia.
Acidosis ; Acidosis, Respiratory ; Decompression ; Dopamine ; Eating ; Female ; Humans ; Hypotension ; Hypothermia ; Intention ; Middle Aged ; Miosis ; Mouth ; Polyuria ; Respiration, Artificial ; Toluidines ; Vomiting ; Xerostomia