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1.
Clin Exp Dermatol ; 2024 Jan 25.
Artículo en Inglés | MEDLINE | ID: mdl-38270233

RESUMEN

Baricitinib is a Janus kinase inhibitor which is now FDA approved for the treatment of severe alopecia areata (AA) in adults. However, the clinical trials which demonstrated the efficacy of baricitinib in the treatment of severe AA did not include men aged >60 years and women aged >70 years. We retrospectively assessed the efficacy and safety of baricitinib in 14 patients aged ≥65 years with moderate-to-severe AA. After a mean (SD) duration of 18.5 (11.9) months, a 72.0% reduction in the mean SALT score from baseline was observed. Partial or complete eyebrow and eyelash hair was observed in 57.1% and 42.9% of patients respectively. Adverse effects of baricitinib were mild. No cases of venous thromboembolism (VTE), major adverse cardiovascular events (MACE) or malignancy were reported.

2.
J Med Assoc Thai ; 100(1): 86-92, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29911776

RESUMEN

Background: Diphenylcyclopropenone (DPCP) has proved to be effective in alopecia areata. The present study aimed to shorten the treatment duration of DPCP for achieving optimal outcomes. Objective: To evaluate the efficacy of multi-concentration level patch test guided DPCP treatment against conventional protocol by measuring percentage of hair regrowth and duration of treatment. Material and Method: The scalp was divided into experimental and control sites. Conventional DPCP sensitization and experimental patch test with multi-level of DPCP concentration were applied in 20 alopecia totalis or universalis patients. The percentages of hair regrowth were evaluated. Results: Five patients achieved complete response within 34 weeks. Mean duration of the experimental sites was shorter although there was no significant difference. Reported complications of both groups were vesicle formation, generalized eczema and folliculitis. Conclusion: Patch test guided DPCP therapy may be a new regimen for alopecia areata treatment because of shortening treatment duration without increasing complications.


Asunto(s)
Alopecia/tratamiento farmacológico , Ciclopropanos/uso terapéutico , Pruebas del Parche/métodos , Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tiempo , Resultado del Tratamiento , Adulto Joven
3.
Int J Trichology ; 15(2): 50-55, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37701554

RESUMEN

Background: Hair graft preservation is an important factor that influences graft survival in hair transplantation. Objective: To investigate the benefits of adding platelet-rich plasma (PRP), and the effect of different storage solutions and temperatures on hair follicle preservation. Materials and Methods: This randomized-controlled study included 10 androgenetic alopecia patients who underwent hair transplantation. Forty-five hair grafts were collected from each patient and then randomized to 8 different culture conditions for 7 days. Hair grafts were cultured in Williams' Medium E or Ringer's lactate solution (RLS) at either 4°C or 37°C, and with or without 10% PRP supplementation. Results: In vitro hair growth in Williams' Medium E was significantly greater than in RLS. The 37°C temperature condition was found to be significantly better than the 4°C condition. The growth of hair grafts cultured with PRP was not significance difference from those without PRP. However, immunofluorescence staining for cytokeratin 15 showed greater expression in hair graft cultured with PRP. Conclusion: PRP may have a beneficial effect for preserving the viability of hair grafts. Williams' Medium E and 37°C temperature were found to be superior to RLS and 4°C relative to hair follicle growth in organ culture.

4.
Medicine (Baltimore) ; 102(49): e36539, 2023 Dec 08.
Artículo en Inglés | MEDLINE | ID: mdl-38065902

RESUMEN

There is still a scarcity of data on hair loss caused by coronavirus disease 2019 (COVID-19) infection. This study aims to determine the characteristics of hair loss in Thai individuals after COVID-19 infection and to identify associated factors. From March to June 2022, a retrospective review of medical records and telephone interviews was conducted to determine the details of hair loss, the severity of infection, and the associated treatments of patients with an abrupt onset of hair loss after the diagnosis of COVID-19 infection at Siriraj Hospital in Bangkok, Thailand. This study included 43 patients who experienced hair loss within 4 months after COVID-19 infection. The mean age was 46.5 ±â€…14.5 years, predominantly women. Most had mild COVID-19 symptoms (59.3%), and 59.1% experienced weight loss, with a mean weight loss of 4.3 ±â€…2.0 kg per month. Preexisting hair loss was reported in 31.0% of participants, with approximately 3-quarters diagnosed with androgenetic alopecia. The median onset of hair loss after COVID-19 infection was 30 days (interquartile range 30-60). Telogen effluvium was the most common acute hair loss diagnosis, and topical minoxidil was the predominant treatment (95.3%). Female gender was correlated with a more severe shedding scale (adjusted odd ratio 24.76, 95% CI 1.67-168.86). Patients with a history of androgenetic alopecia tended to have a lower hair shedding scale (adjusted odd ratio 0.03, 95% CI 0.01-0.38). This study reviewed the characteristics of hair loss after COVID-19 infection during Omicron outbreaks in Thailand. The COVID-19-associated telogen effluvium, which is the primary cause in our patients, manifested with earlier onset at approximately 30 days.


Asunto(s)
Alopecia Areata , COVID-19 , Humanos , Femenino , Adulto , Persona de Mediana Edad , Masculino , Tailandia/epidemiología , COVID-19/complicaciones , COVID-19/epidemiología , Alopecia/epidemiología , Alopecia/etiología , Alopecia Areata/diagnóstico , Pérdida de Peso
5.
Int J Trichology ; 14(3): 91-96, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35755959

RESUMEN

Background: The combination of diphenylcyclopropenone (DCP) and anthralin may demonstrate synergistic effects in the treatment of chronic extensive alopecia areata (AA). Objective: The objective of the study was to compare the efficacy of the combination therapy of topical DCP and topical 0.5% anthralin versus topical DCP alone for the treatment of chronic extensive AA. Materials and Methods: Ten patients were included in the study. Of these, 1, 2, and 7 patients were diagnosed with alopecia totalis, severe AA (>50% hair loss), and alopecia universalis, respectively. For each patient, one side of the scalp was treated with a DCP solution and 0.5% anthralin for 6 months, while the other side was treated with DCP and a cream base for the same duration. The clinical responses were assessed at baseline and then monthly until the end of the 6-month study period using the Severity of Alopecia Tool score. The side effects were evaluated at each follow-up visit. Results: The difference in the efficacies of the combination treatment and DCP alone was not statistically significant (P = 0.59). Regarding the side effects, DCP plus 0.5% anthralin caused significantly more excessive dermatitis than DCP alone (7 patients vs. 2 patients; P = 0.02). Eight patients reported temporary hyperpigmentation at the combination-treatment site, whereas no hyperpigmentation was reported at the DCP-alone site of any patient (P < 0.001). Conclusions: The combination of DCP and 0.5% anthralin was not superior to DCP alone for the treatment of chronic extensive AA. An increase in side effects - excessive dermatitis and hyperpigmentation - was observed in the combination-treatment group.

6.
J Dermatol ; 48(10): 1557-1563, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34264523

RESUMEN

The increasing incidence of frontal fibrosing alopecia (FFA) suggests that environmental factors may be related to the pathogenesis. Recent studies reported potential association between the use of facial care products and FFA. The aim of this study was to investigate the possible association between the use of facial care products and FFA in Asian females. A total of 250 females (50 FFA patients, 100 pattern hair loss [PHL] patients, and 100 normal controls) were recruited and completed a questionnaire to obtain information approximately facial care products and various environmental factors. Our study revealed the use of moisturizer to be significantly higher in the FFA group compared to normal controls (p < 0.001), and sunscreen use was significantly higher in the PHL group than in the control group (adjusted p < 0.001). Subjects with FFA or PHL reported significantly higher use of both sunscreen and moisturizer compared to normal controls (p < 0.001). This study focused on Asian populations. Our results revealed a high frequency of moisturizer and sunscreen use in both FFA and PHL among Asian females. Therefore, the use of facial care products appears not to be linked to the true disease mechanism of FFA, but rather to appearance-related concerns of patients.


Asunto(s)
Liquen Plano , Alopecia/epidemiología , Alopecia/etiología , Pueblo Asiatico , Cara , Femenino , Humanos , Protectores Solares
7.
Biomed Res Int ; 2021: 5595016, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34258268

RESUMEN

BACKGROUND: COVID-19 is a pandemic disease worldwide. Although cutaneous manifestations may present in affected patients, there have been limited studies on the cutaneous findings and hair and nail abnormalities after discharge. OBJECTIVE: To establish the cutaneous manifestations, hair and scalp disorders, and nail abnormalities in patients who recovered from COVID-19 infections. METHODS: A retrospective chart review and telephone interviews were conducted to determine the cutaneous manifestations, hair and scalp disorders, and nail abnormalities of patients aged over 18 years who were diagnosed with COVID-19 infections at Siriraj Hospital, Bangkok, Thailand, between January and June 2020. RESULTS: Ninety-three patients with prior COVID-19 infections participated in the study. The COVID-19 severity had been mild for most (71%). Cutaneous manifestations were reported in 8 patients (8.6%), with the common skin conditions being maculopapular rash and urticaria. The onsets of the skin conditions were before admission (1%), during admission (4.3%), and after discharge (3.2%). Increased hair shedding was also reported in 22 patients (23.7%), with a female predominance. Three patients were affected during admission, while the others were affected after discharge. The patients with moderate, severe, and critical COVID-19 infections experienced significantly more hair shedding than those with asymptomatic and mild diseases. Only 2 patients with mild COVID-19 disease reported nail abnormalities (chromonychia and brittle nails). CONCLUSIONS: Cutaneous manifestations, hair disorders, and nail abnormalities can occur in patients with COVID-19 after their discharge from hospital. Patients should therefore be followed up in anticipation of dermatological problems.


Asunto(s)
COVID-19 , Enfermedades del Cabello , Enfermedades de la Uña , Pandemias , SARS-CoV-2/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , COVID-19/epidemiología , COVID-19/metabolismo , Femenino , Estudios de Seguimiento , Cabello/metabolismo , Cabello/virología , Enfermedades del Cabello/epidemiología , Enfermedades del Cabello/metabolismo , Enfermedades del Cabello/virología , Humanos , Masculino , Persona de Mediana Edad , Enfermedades de la Uña/epidemiología , Enfermedades de la Uña/metabolismo , Enfermedades de la Uña/virología , Uñas/metabolismo , Uñas/virología , Piel/metabolismo , Piel/virología
8.
J Am Acad Dermatol ; 63(2): 274-83, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20633798

RESUMEN

BACKGROUND: Treatment of atrophic scars with a fractional laser resurfacing technique has demonstrated favorable outcomes, although data on the efficacy and adverse effects of this procedure in persons with dark-skinned phototypes are limited. OBJECTIVE: This study was conducted to evaluate the efficacy and safety of carbon-dioxide ablative fractional resurfacing on atrophic acne scars in Asian individuals. METHODS: Thirteen subjects (8 female and 5 male, aged 25-52 years) with skin phototype IV and atrophic acne scars were treated with 3 sessions of carbon-dioxide ablative fractional resurfacing laser on an average of 7-week interval. Objective (ultraviolet A-light video camera) and subjective (clinical evaluation by two blinded dermatologists) assessments were obtained at baseline and at 1, 3, and 6 months after the final treatment. RESULTS: At the 6-month follow-up, 85% of the subjects were rated as having at least 25% to 50% improvement of scars. Improvement significantly progressed from the 1-month follow-up to the 6-month follow-up (P = .002). At 1 month after 3 treatments, surface smoothness (P = .03) and scar volume (P < .001) significantly improved, compared with baseline measurements. Of the subjects, 62% rated themselves as having at least 50% improvement in their scars. Mild postinflammatory hyperpigmentation was the most common adverse effect observed in 92% of the subjects or 51% of treatment sessions, and was completely resolved in an average of 5 weeks. LIMITATION: The small sample size was a study limitation. CONCLUSIONS: Carbon-dioxide ablative fractional resurfacing appears to be effective and well tolerated for the treatment of atrophic acne scars in Asians.


Asunto(s)
Acné Vulgar/terapia , Pueblo Asiatico , Cicatriz/terapia , Terapia por Láser/instrumentación , Láseres de Gas , Acné Vulgar/etnología , Adulto , Cicatriz/etnología , Cara , Femenino , Estudios de Seguimiento , Humanos , Terapia por Láser/efectos adversos , Terapia por Láser/métodos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Adulto Joven
9.
Skin Appendage Disord ; 6(1): 52-54, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32021864

RESUMEN

Hair-induced creeping eruption is a rare condition characterized by a fragment of hair embedded in the superficial layer of the skin. Mainly cases from Asia are reported. We report a 39-year-old Thai female who experienced painful blackish linear eruption on the right side of the neck. The proximal end of the lesion was excised, and the rest of it was removed using forceps. The lesion suddenly disappeared. The black line that was removed from the lesion appeared to be hair. In conclusion, this condition is important and should be considered when patients present with creeping eruption.

10.
J Cosmet Dermatol ; 19(10): 2697-2700, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32060980

RESUMEN

BACKGROUND: Synthetic hair fiber implantation first achieved widespread use in the 1970s, but in 1983, the US Federal Drug Administration banned the fibers due to its complications. Currently available synthetic fibers consist of polyamide material, which has been claimed to be effective and safe. Nevertheless, its use for hair restoration is controversial because of complications such as recurrent infections; the rejection and the faster-than-anticipated loss of fibers; frequent allergic reactions; fears about carcinogenicity; cicatricial alopecia; granulomatous hypersensitivity; and cyst formation. AIMS: To report complications of synthetic hair implantation and treatments. METHODS: We report the clinical data, pathological studies, and treatment outcomes of two patients who developed complications after a synthetic hair implantation. RESULTS: Our case reports showed significant moderate-to-severe adverse events, including recurrent folliculitis, scalp crusting, scarring, the matting and breakage of fibers, and granulomatous reactions. The onset of the reactions varied between 1 and 8 weeks. Pathological studies showed that the implantation of the synthetic hair into the scalp produced a hyperplastic proliferation of epidermal cells, foreign body granuloma, and persistent acute inflammation due to bacterial infections. In our study, definitive treatment was ineffective until the synthetic fibers were removed from the scalp. CONCLUSION: These significant adverse reactions may limit the benefits of synthetic hair fiber implantation for some patients. Although the inflammations were initially controlled by oral and topical antibiotics, a variety of antibiotics were unable to control the folliculitis. The fibers were ultimately removed, following which, the inflammations improved.


Asunto(s)
Foliculitis , Dermatosis del Cuero Cabelludo , Alopecia/inducido químicamente , Foliculitis/inducido químicamente , Cabello , Humanos , Cuero Cabelludo
11.
Int J Dermatol ; 58(6): 659-666, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30768676

RESUMEN

Hair pigmentation is regulated by follicular melanogenesis, in which the process consists of melanin formation and transfer to keratinocytes in the hair shaft. Human hair follicles contain two types of melanin: the brown-black eumelanin and yellow-red pheomelanin. Eumelanin is commonly present in black and brown hair while pheomelanin is found in auburn and blonde hair. Hair follicle melanogenesis is under cyclical control and is concurrently coupled to hair growth. Many factors including intrinsic and extrinsic factors affect the follicular melanogenesis. Though many studies have been conducted to identify the pathogenesis and regulation of hair pigmentation, the etiology of canities and hair pigmentation is still unclear. The pathogenesis of canities or gray hair is believed to occur either from insufficient melanin formation due to melanocyte degeneration or a defect in melanosomal transfer. Canities is an aging sign which often interferes with one's socio-cultural adjustment. On the other hand, premature canities correlate with diseases such as osteopenia and cardiovascular disease. Risk factors associated with canities are not only genetic but also external causes. For example, smoking, alcohol consumption, and stress are among the most common factors. Camouflage techniques are still used as the primary treatment of canities. Further treatments for canities are being developed to achieve the true reversal of hair pigmentation.


Asunto(s)
Color del Cabello/efectos de los fármacos , Folículo Piloso/efectos de los fármacos , Trastornos de la Pigmentación/terapia , Envejecimiento/fisiología , Suplementos Dietéticos , Color del Cabello/fisiología , Tinturas para el Cabello , Folículo Piloso/metabolismo , Humanos , Melaninas/metabolismo , Trastornos de la Pigmentación/epidemiología , Trastornos de la Pigmentación/etiología , Factores de Riesgo , Vitaminas/administración & dosificación
12.
Stem Cell Res ; 38: 101486, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-31228683

RESUMEN

An induced pluripotent stem cell (iPSC) line, MUSIi010-A, was established by Sendai virus (SeV) transduction of scalp fibroblasts from a 59-year-old male with androgenetic alopecia (AGA). Pluripotency of the iPSC line was verified by immunofluorescence staining of pluripotent markers and by in vitro trilineage differentiation. The MUSIi010-A line was shown to retain normal karyotype and free of SeV vectors at passage 17. This iPSC line can be used for studying pathological mechanisms of AGA.


Asunto(s)
Alopecia , Técnicas de Reprogramación Celular , Fibroblastos , Células Madre Pluripotentes Inducidas , Cuero Cabelludo , Alopecia/metabolismo , Alopecia/patología , Línea Celular , Fibroblastos/metabolismo , Fibroblastos/patología , Humanos , Células Madre Pluripotentes Inducidas/metabolismo , Células Madre Pluripotentes Inducidas/patología , Masculino , Persona de Mediana Edad , Cuero Cabelludo/metabolismo , Cuero Cabelludo/patología
13.
Stem Cell Res ; 30: 113-116, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29852467

RESUMEN

Dermal fibroblasts were obtained from a 48-year-old female patient with spinocerebellar ataxia type 3 (SCA3). Fibroblasts were reprogrammed by nucleofection with episomal plasmids, carrying L-MYC, LIN28, OCT4, SOX2, KLF4, EBNA-1 and shRNA against p53. The SCA3 patient-specific iPSC line, MUSIi004-A, was characterized by immunofluorescence staining to verify the expression of pluripotent markers. The iPSC line exhibited an ability to differentiate into three germ layers by embryoid body (EB) formation. Karyotypic analysis of the MUSIi004-A line was normal. The mutant allele was still present in the iPSC line. This iPSC line represents a useful tool for studying neurodegeneration in SCA3.


Asunto(s)
Fibroblastos/metabolismo , Células Madre Pluripotentes Inducidas/metabolismo , Ataxias Espinocerebelosas/genética , Diferenciación Celular , Línea Celular , Femenino , Humanos , Factor 4 Similar a Kruppel , Persona de Mediana Edad , Ataxias Espinocerebelosas/patología
14.
Case Rep Dermatol Med ; 2017: 3768603, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29147588

RESUMEN

This study reports two adult-onset Still's disease (AOSD) cases that met both Yamaguchi's and Fautrel's criteria and that presented with notable clinical manifestations. One case presented with atypical dermographism-like rash with an extremely high ferritin level. The other case presented with typical salmon-pink maculopapular rash but had atypical positive rheumatoid factor. This suggests that although negative rheumatoid factor is one of the criteria used for the diagnosis of AOSD, a positive rheumatoid factor result does not exclude AOSD. Beside a classic rash, characterized by transient salmon-pink maculopapular rash, we also find atypical dermographism-like rash. These findings remind us that there exist various types of rash from AOSD.

15.
Case Rep Dermatol ; 9(3): 190-193, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29118702

RESUMEN

Syringomas are benign appendageal tumors originated from eccrine ducts. The lesions usually present as multiple small, firm papules at lower eyelids and cheeks of women. Plaque-type syringoma is an infrequent form of syringoma and to date, 12 cases have been reported. Pathology demonstrated benign proliferation of eccrine ductal structures in the dermis with surrounding fibrotic stroma. We report the case of a 40-year-old Thai male with plaque-type syringomas at infraorbital areas.

16.
Case Rep Dermatol ; 6(3): 253-7, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25493081

RESUMEN

A 79-year-old Thai woman with advanced renal failure, dyslipidemia and anemia of chronic disease was admitted to hospital with prolonged fever, productive cough and multiple discrete small pustules on her face, trunk and extremities. A chest X-ray revealed diffuse miliary infiltration. Mycobacterium tuberculosis complex DNA was detected by polymerase chain reaction in sputum and scrapings of pustules from her skin. Blood culture identified M. tuberculosis complex. Pulmonary and cutaneous miliary tuberculosis was diagnosed. The patient's symptoms improved after 3 weeks of treatment with isoniazid, rifampicin, ethambutol and pyrazinamide. This report details a case of cutaneous miliary tuberculosis in a non-dialysis chronic kidney disease patient.

17.
Asia Pac Allergy ; 3(2): 100-5, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23667833

RESUMEN

BACKGROUND: Beside autoimmunity, coagulation pathway is also involved in the pathogenesis of chronic urticaria (CU). Previous studies showed that plasma D-dimer levels paralleled the severity of the disease. To date, there are no data concerning D-dimer level in Thai patients with CU. OBJECTIVE: This study aimed to find the relationship between plasma D-dimer levels and the disease severity of Thai CU patients. The secondary objective is to analyze plasma D-dimer level in each group of patients who performed autologous plasma skin testing (APST) and autologous serum skin testing (ASST). METHODS: We retrospectively reviewed case record forms of chronic idiopathic urticaria (CIU) patients aged at least 18 years in Skin Allergy Clinic, Siriraj Hospital Mahidol University, Bangkok, during June 2008 to June 2011. RESULTS: Of 120 patients, plasma D-dimer level was abnormal in 58 patients (48.3%). The study showed statistically significant positive correlation between disease severity and plasma D-dimer level (p < 0.05, r = 0.537). There was no statistically significant difference in plasma D-dimer level between APST positive and negative groups, and also between ASST positive and negative groups. In APST negative group, plasma D-dimer level was elevated in 29 patients (47.5%) and correlated with disease severity. CONCLUSION: This study showed elevated plasma D-dimer levels in nearly half of Thai patients with CIU. There was a positive correlation between plasma D-dimer levels and the severity of disease activity. Investigation for plasma D-dimer level may be an alternative way to evaluate disease severity in patients with CIU.

18.
J Dermatolog Treat ; 23(5): 385-92, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21756154

RESUMEN

BACKGROUND: Several botanically derived agents are available for the treatment of male-pattern baldness. OBJECTIVE: The aim of this study was to evaluate the efficacy of 5% hexane extract of Curcuma aeruginosa, a botanically derived inhibitor of 5α-reductase and 5% minoxidil in the treatment of androgenetic alopecia. METHODS: Eighty-seven men with androgenetic alopecia (AGA) were randomized to receive 5% Curcuma aeruginosa, 5% minoxidil, combination formulation (5% hexane extract of Curcuma aeruginosa + 5% minoxidil) or placebo, twice daily for 6 months. Efficacy was assessed by target area hair count, global photographic review as well as patients' subjective assessments of hair regrowth and hair shedding. RESULTS: There were statistically significant improvements in global photographic review (p < 0.001), subjects' overall assessments of hair regrowth (p = 0.008), and hair shedding (p = 0.004) when the combination formulation was compared with placebo. Similarly, treatment with 5% minoxidil and 5% C. aeruginosa extract also led to some degrees of hair regrowth. There were no serious adverse events during and after the study. CONCLUSION: In men with hair loss in the vertex area of the scalp, the combination of 5% hexane extract of C. aeruginosa and 5% minoxidil slowed hair loss and increased hair growth.


Asunto(s)
Inhibidores de 5-alfa-Reductasa/uso terapéutico , Alopecia/tratamiento farmacológico , Minoxidil/uso terapéutico , Fitoterapia , Extractos Vegetales/uso terapéutico , Vasodilatadores/uso terapéutico , Adulto , Curcuma , Método Doble Ciego , Quimioterapia Combinada , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven
19.
J Dermatol ; 37(12): 1025-31, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21083704

RESUMEN

Mosquito bite allergic reactions are due to sensitization to mosquito salivary proteins. The purpose of our study was to assess the clinical features of Thai patients with mosquito allergy, and to define the natural desensitization course. Seventy patients with mosquito allergy were enrolled. Most patients were female. Half of the patients had a personal history of atopy. The average age of onset of mosquito reaction was 5.7 years old (range 2-58). Four patients were in the desensitization phase in which clinical symptoms disappeared within 9.5 years (median). The common cutaneous lesions were erythematous papules (68.6%) and immediate wheals (67.1%). The most common area of involvement was the leg. Forty of 50 patients (80%) had positive skin prick testing to mosquito allergen (Culex quinquefasciatus) and 31 of 42 patients (73.8%) had positive immunoglobulin E antibodies against allergens in C. quinquefasciatus saliva proteins.


Asunto(s)
Culex/inmunología , Hipersensibilidad/diagnóstico , Mordeduras y Picaduras de Insectos/inmunología , Proteínas de Insectos/inmunología , Proteínas y Péptidos Salivales/inmunología , Adolescente , Adulto , Alérgenos/inmunología , Animales , Estudios Transversales , Desensibilización Inmunológica , Femenino , Humanos , Inmunoglobulina E/inmunología , Pierna , Masculino , Persona de Mediana Edad , Pruebas Cutáneas , Tailandia , Adulto Joven
20.
Artículo en Inglés | MEDLINE | ID: mdl-20657117

RESUMEN

BACKGROUND: Colloid bodies (CB) in direct immunofluorescence (DIF) studies are usually found in interface dermatitis. Furthermore, CB can be found in various skin diseases and even in normal skin. AIM: To evaluate the diagnostic value of CB deposits in DIF studies. METHODS: From 1996-2007, data from 502 patients where DIF studies showed immunoreactants at CB were enrolled. The definite diagnoses of these patients were based on clinical, histopathological and immunofluorescent findings. The results of DIF studies were analyzed. RESULTS: Immunoreactants at CB were detected in 44.4%, 43.8%, 4.2%, 3.8%, and 2.2% of interface dermatitis, vasculitis, autoimmune vesiculobullous disease, panniculitis, and scleroderma/morphea, respectively. The most common immunoreactant deposit of all diseases was Immunoglobulin M (IgM). Brighter intensity and higher quantity of CB was detected frequently in the group with interface dermatitis. CONCLUSIONS: Immunoreactant deposits at CB alone can be found in various diseases but a strong intensity and high quantity favor the diagnosis of interface dermatitis. CB plus dermoepidermal junction (DEJ) deposits are more common in interface dermatitis than any other disease. Between lichen planus (LP) and discoid lupus erythematosus (DLE), CB alone is more common in LP; whereas, CB plus DEJ and superficial blood vessel (SBV) is more common in DLE. The most common pattern in both diseases is CB plus DEJ. The quantity and intensity of CB in LP is higher than in DLE.


Asunto(s)
Técnica del Anticuerpo Fluorescente Directa/métodos , Microscopía Fluorescente/métodos , Enfermedades de la Piel/patología , Piel/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biopsia , Niño , Coloides , Dermatitis/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Paniculitis/patología , Esclerodermia Localizada/patología , Enfermedades Cutáneas Vesiculoampollosas/patología , Vasculitis/patología , Adulto Joven
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